СПОСОБ И УСТРОЙСТВО УПРАВЛЕНИЯ ПОТОКОМ ДЛЯ НЕПРЕРЫВНОГО МНОГОЗОНОВОГО МАССООБМЕНА

FIELD: machine building. SUBSTANCE: invention relates to control over consecutive interaction of fluid with various gases in separate zones of mass exchange inside one vessel. Zones of heat exchange are intercommunicated. This allows direct interaction of fluid with process gas in parallel flow in mass exchange zone located downstream for mass exchange between fluid and process gas. It includes introduction of fluid to upstream mass exchange zone with second process gas different from process gas for interaction between fluid and second gas. Control over the rate of fluid flow from upstream mass exchange zone into downstream mass exchange zone is performed by controlled addition of third gas to one or several circulation tubes separating every mass exchange zone. This is done to make circuit tube fluid specific density control fluid flow motive force. EFFECT: automatic circulation for continuous removal hydrogen sulphide from process gas flow. 15 cl, 4 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 519 726 C1 (51) МПК B01D 53/52 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2012149013/02, 06.06.2011 (24) Дата начала отсчета срока действия патента: 06.06.2011 (72) Автор(ы): ХОБСОН,Дэвид Алан (US) (73) Патентообладатель(и): МЕРИЧЕМ КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: R U 07.06.2010 US 12/794,875 (45) Опубликовано: 20.06.2014 Бюл. № 17 A, 09.12.1980. US 4482524 A, 13.11.1984. US 5422086 A, 06.06.1995. RU 2377057 C1, 27.12.2009. RU 2116121 C1, 27.07.1998 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2013 (86) Заявка PCT: US 2011/039262 (06.06.2011) 2 5 1 9 7 2 6 (56) Список документов, цитированных в отчете о поиске: US 5160714 A, 03.11.1992. US 4238462 2 5 1 9 7 2 6 R U WO 2011/156269 (15.12.2011) Адрес для переписки: 119019, Москва, Гоголевский бульвар, 11, этаж 3, "Гоулингз Интернэшнл Инк.", Т.Н. Лыу (54) СПОСОБ И УСТРОЙСТВО УПРАВЛЕНИЯ ПОТОКОМ ДЛЯ ...

СПОСОБ УДАЛЕНИЯ СОЕДИНЕНИЙ СЕРЫ ИЗ ОТХОДЯЩИХ ГАЗОВ

FIELD: gas purification. SUBSTANCE: gas to be purified is treated with aqueous solution containing sulfur compounds followed by treating aqueous solution with sulfide-oxidizing bacteria in presence of oxygen to yield elementary sulfur. Sulfur is then separated and solution returned into washing stage. According to invention, , washing is performed at pH 6-9 with aqueous solution containing buffer compounds such as carbonate and/or bicarbonate, and/or phosphate in concentration from 20 to 2000 mequiv/l supplemented with 0.1-50 g/l of elementary sulfur to facilitate separation of formed sulfur. When sulfur dioxide is to be removed, aqueous solution, prior to be treated by sulfide-oxidizing bacteria, is subjected to reduction of sulfur compounds to sulfide, which is achieved using sulfur-reducing bacteria and adjusting buffer compound concentration to 20-200 mequiv/l. EFFECT: enhanced treatment efficiency and facilitated sulfur separation. 11 cl, 2 dwg, 1 tbl 41968 0с ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ “” 2 089 267 Сл В 010 53/14, 53/34, С 01 В 17/05 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 93046322/25, 04.12.1991 (30) Приоритет: 04.12.1990 МЕ 9002661 (46) Дата публикации: 10.09.1997 (56) Ссылки: 1. ЕР, 0229587, кл. В 010 53/4, 1987. 2. МЕ, 0801009, кл. С 027 30.2, 1989. (86) Заявка РСТ: МЕ 91/00250 (04.12.91) (71) Заявитель: Паквес Б.В. (М) (72) Изобретатель: Сес Ян Нико Бэйсман[МЕ] (73) Патентообладатель: Паквес Б.В. (М) (54) СПОСОБ УДАЛЕНИЯ СОЕДИНЕНИЙ СЕРЫ ИЗ ОТХОДЯЩИХ ГАЗОВ (57) Реферат: Изобретение относится к очистке отходящих газов от соединений серы. Сущность способа заключается в том, что очищаемые газы — промывают — водным раствором, содержащим соединения серы, с последующей обработкой водного раствора сульфидоокисляющими бактериями в присутствии киспорода с — получением элементарной серы. Далее серу отделяют, а раствор возвращают на стадию промывки. Промывку ведут ВОДНЫМ раствором, ...

ПРЕВРАЩЕНИЕ СЕРОВОДОРОДА В СЕРУ И ВОДОРОД

Изобретение относится к способу превращения сероводорода в серу и водород. Газообразный сероводород контактируют с хиноном в водном растворителе, содержащем комплексообразующий агент для получения серы и соответствующего гидрохинона. Гидрохинон превращают обратно в хинон и водород. Хинон рециклизуют, а газообразный водород и серу собирают. Изобретение также описывает интервал соотношений комплексообразующего агента к хинону, который дает неожиданный выход в описанной реакции.

УСТРОЙСТВО ДЛЯ КОНДЕНСАЦИИ СЕРЫ

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2016 142 559 A (51) МПК C01B 17/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016142559, 28.10.2016 (71) Заявитель(и): Курочкин Андрей Владиславович (RU) Приоритет(ы): (22) Дата подачи заявки: 28.10.2016 (43) Дата публикации заявки: 03.05.2018 Бюл. № 13 (72) Автор(ы): Курочкин Андрей Владиславович (RU) A R U A 2 0 1 6 1 4 2 5 5 9 (57) Формула изобретения Устройство для конденсации серы, оснащенное линией вывода отходящего газа, включающее контактный узел конденсации и узел промывки, отличающееся тем, что в качестве узла конденсации и узла промывки установлены контактные узлы объемного типа, оснащенные системами охлаждения, соединенные линиями подачи очищенного газа и суспензии серы. 2 0 1 6 1 4 2 5 5 9 (54) УСТРОЙСТВО ДЛЯ КОНДЕНСАЦИИ СЕРЫ R U Адрес для переписки: 450059, Республика Башкортостан, г. Уфа, пр. Октября, 43/5, кв. 169, Курочкину А.В. Стр.: 1

СПОСОБ УДАЛЕНИЯ СУЛЬФИДА ИЗ ВОДНОГО РАСТВОРА

А 2016116027 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) 1] а 5 а < ВЦ (п? 2845 145 (50) МПК СОВ 1705 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016116027, 26.09.2014 (71) Заявитель(и): ПАКВЕС И.П. Б.В. (МГ.) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): 26.09.2013 ЕР 13186184.1 ВАН ЗЕССЕН Эрик (№1.), ЙОРНА Антониус Йоханнес (МТ.), ВЕЛЛИНГА Шурд Хубертус Йозеф (МТ), (85) Дата начала рассмотрения заявки РСТ на ДЕЙКМАН Хендрик (МТ.) национальной фазе: 26.04.2016 (43) Дата публикации заявки: 31.10.2017 Бюл. № 31 (86) Заявка РСТ: МГ. 2014/050660 (26.09.2014) (87) Публикация заявки РСТ: УГО 2015/047091 (02.04.2015) Адрес для переписки: 129090, Москва, ул. Б.Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) СПОСОБ УДАЛЕНИЯ СУЛЬФИДА ИЗ ВОДНОГО РАСТВОРА (57) Формула изобретения 1. Способ удаления сульфида из водного раствора, содержащего сульфид, в котором водный раствор подвергают воздействию сульфид-окисляющих бактерий в присутствии кислорода в реакторе, чтобы окислять сульфид до элементарной серы, в котором: а) обеспечивают водный раствор, содержащий сульфид;: Ъ) подают газ, содержащий молекулярный кислород, в реактор, содержащий сульфидокисляющие бактерии в водной среде, так что одна или несколько аэрированных зон и одна или несколько неаэрированных зон возникают в водной средес восходящим течением жидкости в аэрированных зонах и нисходящим течением жидкости в неаэрированных зонах; с) подают исходный поток водного раствора, содержащего сульфид, в реактор путем впрыскивания исходного потока в одну или несколько неаэрированных зон, где данные одна или несколько аэрированных зон не отделены от одной или нескольких неаэрированных зон посредством вертикально распространяющихся, внутренних конструкций реактора. 2. Способ по п. 1, в котором данные одна или несколько аэрированных зон и одна или несколько неаэрированных зон возникают посредством подачи газа, содержащего молекулярный ...

Способ очистки серусодержащих газов

Способ обработки серосодержащей газовой смеси

For the removal of sulfur compounds, especially H2S, from gaseous mixtures, said mixtures are scrubbed with a physical solvent which is later regenerated and reused. To the solvent are added (a) an oxidizing agent for converting the sulfur compounds into elemental sulfur, and (b) additive means for increasing the settling rate of the thus-formed sulfur.

VERFAHREN ZUR ERZEUGUNG VON ELEMENTAREM SCHWEFEL

Verfahren zur Beseitigung von Schwefelwasserstoff und Schwefeldioxyd aus Abgasen des Claus-Prozesses durch Umsetzung zu elementarem Schwefel

Sulphur from hydrogen sulphide by - electrochemical reaction

H2S is reacted electrochemically to S with recovery of electrical energy. Anode pref. consists of metal sulphide(s), esp. WS2 and/or MoS2. Dilute H2SO4 may be used as electrolyte. Method overcomes difficulties associated with combustion of H2S to S, i.e. formation of CS2 and COS as by-products, which must be hydrolysed and processed. It can be used to recover S from H2S obtained from natural gas.

VERFAHREN ZUR VERMEIDUNG DER BILDUNG VON ABWASSER BEI DER ENTSCHWEFELUNG VON KOKSOFENGAS

Process for obtaining pure sulphur from raw substances containing sulphur by continuous operation

Sulphur is recovered from ores or other raw materials by first converting it into a mixture of sulphuretted hydrogen and sulphur dioxide, e.g. in the manner described in Specification 358,558, and then leading these gases, in the proportion of 4 to 7 of the first to 2 of the second, into a reaction vessel into which is sprayed a solution of alkaline or alkaline earth tetra and penta thionate. The temperature is maintained at 60 DEG C. and the deposited sulphur is removed continuously, an addition of an alcohol, such as glycerol, being beneficial. Preferably, a solution of the potassium salts is used and is prepared by passing equal volumes of sulphuretted hydrogen and sulphur dioxide into a 20 per cent solution of potash lye until the saturation point is reached, this being effected when 0,3 cubic centimetres of deci-normal iodine is required to neutralize 1 cubic centimetre of the solution.

PROCESS FOR THE OXIDATION OF HYDROGEN SULPHIDE TO ELEMENTARY SULPHUR

... 1371694 Oxidation of hydrogen sulphide BADISCHE ANILIN- & SODA-FABRIK AG 11 Feb 1972 [12 Feb 1971] 6423/72 Addition to 1311740 Heading C1A Hydrogen sulphide is oxidized with oxygen or sulphur dioxide or with a gas containing one or both of these, in the presence of, as a solvent, a triamide of orthophosphoric acid of general formula in which R is H or an alkyl group of 1-3 carbon atoms, with, as a diluent, a polar aprotic solvent having a dielectric constant of at least 20 (at 25‹C.) and a boiling point of at least 150‹C. Exemplified diluents are benzonitrile, tetramethylene sulphone, propylene carbonate and ethylene carbonate.

REMOVAL OF HYDROGEN SULPHIDE FROM GASEOUS STREAMS

PROCESS FOR DESULPHURISATION OF WASTE GAS

... 1411330 Desulphurization of waste gas; sulphur TSUKISHIMA KIKAI CO Ltd 19 Sept 1973 43928/73 Heading C1A Waste gas containing an oxide of sulphur is desulphurized by (i) contact with an aqueous alkaline alkali metal containing solution to produce a desulphurized gas and a sulphur containing aqueous solution, (ii) pyrolysing the sulphur containing aqueous solution from (i) under reducing conditions to form an H 2 S containing gas stream having entrained alkali metal solids, (iii) separating the entrained solids from the gas stream, (iv) cooling the separated gas to form an aqueous condensate and a H 2 S containing residual gas, (v) mixing the solids from (ii) with the condensate from (iv) to form an aqueous alkali-metal containing solution, (vi) oxidizing any sulphides in the aqueous solution from (v), (vii) recycling at least a portion of the oxidized solution from (vi) to (i), and (viii) oxidizing the H 2 S containing residual gas from (iv) to recover elemental sulphur. Step (viii) may ...

REMOVING SULPHUR COMPOUNDS FROM GASES CONTAINING THEM

... 1528019 Removing sulphur compounds INSTITUT FRANCAIS DU PETROLE 19 Dec 1975 [27 Dec 1974] 52147/75 Heading C1A A gas containing HIS and S0 2 which is discharged from a sulphur producing unit is purified by at least partly removing the SO2 and passing the resulting gas containing HIS over a solid ZnO- containing absorption mass to absorb H 2 S, periodically regenerating the solid mass by passing molecular oxygen over it, recovering the resulting SO2 and feeding it to a sulphur producing unit for reacting with H 2 S. The solid mass is preferably that described in the applicants Specification 1,522,519.

Sulfur recovery process

Hydrogen sulphide and water vapour are removed from a gaseous mixture by contacting with sulphur dioxide in a 90-99% aqueous solution of an inert, neutral, stable, organic solvent having a vapour pressure not more than 10 mm's. Hg., and a solubility in water not less than 2%, at 20 DEG C., and containing at least 2 atoms of at least one element other than C and H, at least one of which is O or S, and not more than 2 vicinal OH radicals. The water is absorbed by the solution and S particles are precipitated. A number of organic solvents are specified including the glycols, e.g. diethylene, triethylene, or propylene glycol, or the ether or ester derivatives thereof. The H2S-containing gases, e.g. sour natural gas, may be reacted with SO2 in the presence of the aqueous solution of the organic solvent in various ways, e.g. the SO2 may be dispersed in the sour natural gas in an absorption tower and the combined gaseous mixture absorbed in a descending stream of the aqueous solution of organic ...

Purifying coal distillation gases

... 841,610. Purifying gases containing hydrogen sulphide. KOPPERS G.m.b.H., H. July 18, 1956 [Sept. 14, 1955], No. 22246/56. Drawings to Specification. Class 55 (2). In a process of removing hydrogen sulphide from coal distillation gas containing a small amount of free oxygen, the gas is scrubbed under pressure, e.g. 5 atm., with alkaline absorbent solution containing as a catalyst a hydroxy- or polyhydroxybenzene compound in such an amount that the absorbed hydrogen sulphide is wholly or almost wholly oxidized to form sulphur by the free oxygen in the gas being scrubbed, the solution being withdrawn from the scrubber and filtered under reduced pressure to remove the sulphur before being returned to the scrubber. A regeneration of the solution with air may be necessary outside the scrubber if the free oxygen content of the gas is insufficient to effect complete oxidation of the absorbed hydrogen sulphide. The amount of catalyst in the solution may be from 1.5-2.5 gm./litre.

Improvements in or connected with the Obtainment and Utilisation of Sulphur from Sulphuretted Hydrogen and Sulphur Dioxide.

... 3061. Feld, W. Feb. 8. Sulphur is obtained from hydrogen sulphide and sulphur dioxide, pure or contained in other gases, such as coal-gas, and gases from sulphur ovens, boiler furnaces, coal, ore, or other ovens, gas-producers, retorts, &c., respectively, by treatment, simultaneously or consecutively, with a liquid containing in solution, or suspension, or both, compounds of certain metals. The sulphides of these metals are insoluble in basic, neutral, or, in some cases in weak acid, solutions, but are decomposable by sulphur dioxide, alone or in the presence of air, or other ozidizing-agent, or sulphur, or basic or acid substances, or a mixture thereof. Examples are the oxides, hydroxides, carbonates, sulphites, thionates, and basic, neutral, or weak-acid salts of zinc, manganese, iron, and other suitable metals. In an example, conducted hot or cold, zinc oxide is suspended in water, salt solution, oil, &c., and coal-gas, hot or cold, treated therewith, zinc sulphide being formed. When ...

Sophisticated process of conversion of the elementary sulphur hydrogen sulphide.

Process of conversion of the hydrogen sulphide and elementary sulphur sulphur dioxide.

Process of conversion of the elementary sulphur hydrogen sulphide.

Process of conversion of the hydrogen sulphide and elementary sulphur sulphur dioxide.

Process for the purification of flue gases

Process for the purification of flue gases, in which the flue gases are first cooled to a low temperature and the sulphur dioxide in the flue gases is then scrubbed out by means of water, and the sulphurous acid formed in this way is reduced to elemental sulphur by means of hydrogen sulphide.

PROCEDURE FOR THE RECUPERATION OF SCHWEFELHALTIGEN COMPONENTS WITH A SULFUR RECUPERATION PROCEDURE

PROCEDURE FOR THE DISTANCE OF HYDROGEN SULFIDE BY OXIDATION IN PRESENCE OF HETEROPOLYSÄUREN

DISTANCE OF HYDROGEN SULFIDE.

PROCEDURE AND DEVICE FOR THE CLEANING OF HYDROGEN SULFIDE CONTAINING EXHAUST GASES.

PROCEDURE FOR THE OXIDATIVE H2S-AUSWASCHUNG FROM A GAS.

Procedure for the separation of a sulfur portion from sulphur dioxide containing chimney exhaust gases

Procedure for the reduction of inorganic and organic compounds

PROCEDURE FOR THE PROCESSING OF PHOTOGRAPHIC BATHS FROM COLOR PROCESSES

Process for producing a purified synthesis gas stream

A process for producing a purified synthesis gas stream from a feed synthesis gas stream comprising besides the main constituents carbon monoxide and hydrogen also hydrogen sulphide,HCN and/or COS, the process comprising the steps of: (a) removing HCN and/or COS by contacting the feed synthesis gas stream with a water gas shift catalyst in a shift reactor in the presence of steam/waterto react at least part of the carbon monoxide tocarbon dioxide, and to obtain a synthesis gas stream depleted in HCN and/or in COS; (b) removing hydrogen sulphide in the synthesis gas stream depleted in HCN and/or in COS by contacting this gas stream in a HS-removal zone with an aqueous alkaline washing liquid to obtain a HS-depleted synthesis gas stream and a sulphide-comprising aqueous stream; (c) contacting the sulphide-comprising aqueous stream with ulphide-oxidizing bacteria in the presence of oxygen in a bioreactor to obtain a sulphur slurry and a regenerated aqueous alkaline washing liquid; (d) removing ...

Method and apparatus for effecting gas-liquid contact

Co-oxidation of H2S and saturated hydrocarbons

SULFUR RECOVERY FROM HYDROGEN SULFIDE CONTAINING GAS STREAMS

Hydrogen sulfide removal process

Improved sulfur separation system

SETTLING OF SULFUR IN SULFIDE REMOVAL PROCESS

PROCESS FOR TREATING A GAS STREAM OR EFFLUENT

One exemplary embodiment can be a process for treating a tail gas stream from a sulfur recovery zone. Generally, the process includes passing the tail gas stream through, in sequence, a hydrogenation zone, a quench zone, and an acid gas removal zone using a solvent. The solvent can include at least one of a dimethyl ether of polyethylene glycol, a N-methyl pyrrolidone, a N-formyl morpholine, a N-acetyl morpholine, a tetrahydro-1,4-oxazine, and a mixture comprising diisopropanolamine and tetrahydrothiophene-1,1-dioxide.

HEADSPACE GAS TREATMENT APPARATUS AND METHOD

An apparatus for treating headspace gas has a production water tank, a source of at least one of oxygen and ozone, a diffuser, and a reaction tank. The production water tank contains a headspace gas and a headspace gas outlet. At least a portion of the headspace gas is a sulfide gas. The diffuser diffuses a mixture of the at least one of oxygen and ozone and headspace gas from the production water tank via the headspace gas outlet into a liquid solvent. The at least one of oxygen and ozone oxidizes at least a portion of the sulfide gas as they pass through the diffuser. The reaction tank for receives the liquid solvent.

PROCESS FOR PRODUCING PURIFIED SYNTHESIS GAS

The invention provides a process for producing a purified synthesis gas stream from a feed synthesis gas stream comprising besides the main constituents carbon monoxide and hydrogen also hydrogen sulphide, carbonyl sulphide and/or hydrogen cyanide and optionally ammonia, the process comprising the steps of: (a) contacting the feed synthesis gas stream with a water gas shift catalyst in a shift reactor in the presence of water and/or steam to react at least part of the carbon monoxide to carbon dioxide and hydrogen and at least part of the hydrogen cyanide to ammonia and/or at least part of the carbonyl sulphide to hydrogen sulphide, to obtain a shifted synthesis gas stream enriched in H2S and in CO2 and optionally comprising ammonia; (b) removing H2S and CO2 from the shifted synthesis gas stream by contacting the shifted synthesis gas stream with an absorbing liquid to obtain semi-purified synthesis gas and an absorbing liquid rich in H2S and CO2; (c) heating at least part of the absorbing ...

COMPOSITION AND METHOD FOR REMOVING HYDROGEN SULFIDE FROM GAS STREAMS

An improved aqueous catalytic oxidation-reduc-tion composition for oxidizing hydrogen sulfide to produce elemental sulfur and a method of removing hydrogen sulfide from a gas stream whereby a gas stream containing hydrogen sulfide is brought into contact with an aqueous catalytic oxidizing reaction composition containing a water soluble polyvalent metal salt having metal in the highest valence state and at least one nonionic surfactant having an HLB of from about 8 to about 10, preferably about 8.5 to about 9, which is adapted to wet the elemental sulfur formed. The nonionic surfactant is present in the reaction solution in an amount sufficient to substantially prevent formation of sulfur froth at the surface of the reaction solution and to cause the sulfur to precipitate as a granular solid that can be recovered by filtration, by centrifucation, or other similar means.

PROCESS FOR THE REMOVAL OF H2S FROM A SOUR GASEOUS STREAM

K 7582 II PROCESS FOR THE REMOVAL OF H2S FROM A SOUR GASEOUS STREAM Process for the removal of H2S from a sour gaseous stream comprising contacting the sour gaseous stream with aqueous reactant solution in contacting zone (2) at a temperature below the melting point of sulphur, the reactant solution containing solubilized coordination complex of Fe (III) with nitrilotriacetic acid under conditions to convert H2S, producing a gaseous stream having reduced H2S content, and aqueous mixture containing solid sulphur and an increased concentration of solubilized coordination complex of Fe (II) with nitrilotriacetic acid, removing aqueous mixture from the contacting zone (2) and separating a minor portion of the mixture having an increased solid sulphur concentration, heating mixture having an increased sulphur concentration in an at least substantially oxygen free environment (10) to a temperature sufficient to melt the sulphur to produce a solution of solubilized coordination complexes of iron ...

METHOD OF PURIFYING A HYDROGENATED GAS CONTAINING ACID GASES

A method of purifying a hydrogenated gas containing carbon monoxide and hydrogen sulphide, for example a gaseous mixture obtained by partial oxidation of hydrocarbons, has a hydrogen sulphide elimination step which comprises a reaction between sulphur dioxide and hydrogen sulphide to form sulphur, the reaction being carried out in a solvent for sulphur dioxide and hydrogen sulphide.

H.SUB.2S REMOVAL WITH OXIDIZING POLYVALENT METAL CHELATE AND ELECTROLYTIC REGENERATION THEREOF

H2S REMOVAL In a process for the removal of H2S from sour gas by contacting the gas with an aqueous solution containing an oxidizing polyvalent metal chelate, the reduced chelate is regenerated in an electrochemical cell in which anode and cathode are separated by a hydrogen ion permeable barrier and(a) oxygen is supplied to the cathode and water is formed at the cathode, or (b) hydrogen is produced at the cathode. BMRH04/EO ...

TREATMENT OF A HYDROGEN SULFIDE-CONTAINING GAS

IMPROVEMENTS IN THE TREATMENT OF A HYDROGEN SULFIDE-CONTAINING GAS An effluent alkali salt solution obtained in the desulfurization of a hydrogen sulfide-containing gas by washing. with an alkali wash solution is subjected to a two stage precipitation treatment at different temperatures to recover valuable components such as a vanadium compound, chelating agent, ADA, active alkali salts while removing inactive salts such as sulfate and thiosulfate.

METHOD OF DESULFURIZING WASTE GASES CONTAINING SULFUR DIOXIDE

METHOD OF DESULFURIZING WASTE GASES CONTAINING SULFUR DIOXIDE Sulfur dioxide (SO2) is absorbed from waste gases by absorbing SO2 in an aqueous absorbent comprising soluble sulfite in an absorber; stripping the SO2 from the absorbent; absorbing the stripped SO2 in a separate absorbent for the SO2; and reacting the thus absorbed SO2 in a liquid Claus reactor forming sulfur. In a preferred embodiment, the gas from the stripping step is subjected to a condensation step in a heat exchanger boiler where steam ingoing to the stripper is generated.

PROCEDE PERFECTIONNE DE CONVERSION DE L'HYDROGENE SULFURE ET DE L'ANHYDRIDE SULFUREUX EN SOUFRE ELEMENTAIRE

CYCLICAL PROCESS FOR RECOVERY OF ELEMENTAL SULFUR FROM WASTE GASES

SULFUR RECOVERY SYSTEM

A PROCESS FOR REMOVING SULFUR PARTICLES FROM AN AQUEOUS CATALYST SOLUTION AND FOR REMOVING HYDROGEN SULFIDE AND RECOVERING SULFUR FROM A GAS STREAM

The invention relates to a process for removing sulfur particles from an aqueous catalyst solution used to remove hydrogen sulfide from a gas stream (1, 5), comprising the steps of: directing a flow of a suspension (12) comprising reduced catalyst solution and sulfur particles to an oxidizer zone (20), where the catalyst solution is regenerated by contacting said suspension with a gas (22) containing oxygen; and removing sulfur from said suspension at least by gravity sedimentation at a bottom (21) of said oxidizer zone (20). According to the invention a flow deflecting means (34) is disposed at least at an outlet (35) for the oxidized catalyst solution leaving said oxidizer zone (20) such as to prevent any tur- bulent state caused at least by a stream of oxidized catalyst solution leaving said oxidizer zone (20) such as to reduce foaming and plugging of the whole system. A gas (27) is additionally injected at the conical bottom (21) of the oxidizer zone (20) in parallel to said slanted ...

RECOVERY OF SULFUR FROM SULFUR DIOXIDE RICH AQUEOUS ABSORBENTS

PROCESS FOR SULFUR REMOVAL SUITABLE FOR TREATING HIGH-PRESSURE GAS STREAMS

A CATALYTIC COMPOSITION FOR OXIDATION-REDUCTION PROCESS FOR EFFECTING THE CATALYTIC OXIDATION OF HYDROGEN SULFIDE IN GAS STRAINS

The present invention provides a catalytic composition for use in an oxidation-reduction process for effecting the catalytic oxidation of hydrogen sulfide in gas strains comprising a water soluble iron compound, a mixture of two chelating agents, comprising Na2EDTA and Na4EDTA, and at least one stabilizer. Further the present invention provides a process for preparing the catalytic composition according to the invention, said composition being advantageous in effecting the catalytic oxidation of hydrogen sulfide in gas strains, comprising the steps of preparing a mixture of a water soluble iron compound and a stabilizing agent in an aqueous system, while the pH of the system is pH .ltoreq. 2, adding a mixture of two chelating agents I and II, whereas both of the chelating agents are amine chelating agents to the mixture of the water soluble iron compound and a stabilizing agent, adding sufficient aqueous amine chelating agent II to this combined mixture to adjust a pH of 7 to 10, and heating ...

REMOVAL OF HYDROGEN SULFIDE FROM PRODUCED FLUIDS

... 2058296 9100243 PCTABS00003 Hydrogen sulfide is removed from a water-in-oil emulsion by treatment of the emulsion with sulfur dioxide to convert the hydrogen sulfide to elemental sulfur. The elemental sulfur formed is distributed between the oil phase and the aqueous phase of the emulsion.

CARBONYL-CONTAINING DEGRADABLE CHELANTS, USES AND COMPOSITIONS THEREOF

New compounds are represented by Formulas 1 and 2 where Formula 1 is: wherein each of R1, R2, R3, and R4 is independently H, hydroxyalkyl, -C(R6)2COOH or ammonium, amine, or alkali metal salts thereof; R5 is an alkylene group having at least one carbonyl group; and each R6 is independently selected from H, and alkyl groups of from 1 to 4 carbon atoms, straight or branched chain, preferably H, -CH3, or -C2H5, more preferably each R6 is H and Formula 2 is: wherein R1, R2, R3, R4, R5 and R6 are defined for Formula 1, preferably at least 3, most preferably 4 of R1, R2, R3, and R4 are independently-C(R6)2COOH or salts thereof; and each R7 is independently R5 or an alkylene group. The compounds are advantageously photo- and bio-degradable and are particularly useful as chelants especially in washing compositions and in gas conditioning.

PROCESS AND APPARATUS FOR REMOVAL OF H2S WITH SEPARATE ABSORBER AND OXIDIZER AND A REACTION CHAMBER THEREBETWEEN

A method and apparatus including a reaction chamber interposed in a polyvalent metal redox solution flow path between an absorber chamber and an oxygenation chamber, including one or more oxygenation stages, for contact in the reaction chamber of H2S-laden catalytic polyvalent metal redox solution form the absorber chamber with highly oxidized polyvalent metal redox solution from the last oxygenation stage to accomplish oxidation of the dissolved H2S species by interaction with the oxidized redox catalyst essentially in the absence of gaseous dissolved oxygen. The highly oxidized polyvalent metal redox solution, including Fe+3 or V+5, contacts the H2S-laden solution from the absorber chamber for reoxidation of the dissolved HS-, S= and any of the polyvalent metal sulfur compounds (presumably a chelated iron sulfide or a vanadium sulfide), to avoid formation of sulfate or thiosulfate salts which reduce the yield of sulfur and build up in the solution. To avoid the formation of crystals of ...

PROCESS AND DEVICE FOR TREATING A GAS CONTAINING HYDROGEN SULPHIDE AND SULPHUR DIOXIDE COMPRISING A PHASE FOR REDUCING SULPHUR IN THE RECYCLED SOLVENT

On décrit un procédé et un dispositif de traitement d'un gaz contenant de l'hydrogène sulfuré et du dioxyde de soufre ayant pour but de réduire sensiblement les émissions de soufre vapeur dans les gaz traités, le procédé étant caractérisé en ce que l'on met en contact dans un réacteur-contacteur (2) gaz-liquide le gaz avec un solvant ( 5) et l'on récupère un gaz (20) qui est envoyé dans un second réacteur (102) où il est mis à nouveau en contact avec un solvant (105), ledit solvant étant refroidi par d es moyens appropriés (190), ce qui permet de séparer une partie du soufre du solvant. Ce solvant désaturé en soufre est utilisé pour réaliser le contact avec le gaz (20) provenant du premier réacteur (2). Le gaz (120) issu du second réacteur est très appauvri en soufre vapeur. Au moins un des réacteurs contient un catalyseur.

SULFUR RECOVERY PROCESS USING SULFUR DEBONDING AGENT

Recovery of an insoluble polymeric sulfur species from the reaction solution of a hydrogen sulfide conversion process is enhanced by adding a sulfur debonding agent to the hydrogen sulfide conversion reaction solution either at the outset of the process or after conversion of the hydrogen sulfide. Conversion of the hydrogen sulfide initially produces a soluble complex having the polymeric sulfur bound therein. The sulfur debonding agent breaks the soluble complex to produce a free insoluble polymeric species readily separable from the reaction solution by conventional physical means to obtain the desired sulfur product.

Verfahren zur Herstellung hochkonzentrierter und hochdisperser wässeriger, kolloider Schwefellösungen.

Verfahren zur Herstellung von reinem Schwefel in ununterbrochenem Arbeitsgang.

Verfahren zur Reinigung der Abluft aus Viskosefabriken

Procédé d'élimination de l'hydrogène sulfuré de gaz ou d'hydrocarbures liquides

Procédé d'oxydation de l'hydrogène sulfuré d'un gaz consistant en hydrogéne sulfursé ou contenant de l'hydrogène sulfuré, avec séparation de soufre

Verfahren zur Reinigung von Abluft aus Viskosefabriken

Verfahren zur Überführung von Schwefelwasserstoff in freien Schwefel

Verwendung eines Reduktionsmittels für die Reduktion von Sauerstoffverbindungen des Schwefels

Procédé pour absorber et éliminer l'hydrogène sulfuré de gaz et d'hydrocarbures liquides

Procedimento per l'eliminazione dell'idrogeno solforato da solo o unitamente con altri gas acidi da miscele gassose che lo contengono

Verfahren zur katalytischen Behandlung saurer Kohlenwasserstoffdestillate

Verfahren zur Reinigung der Abluft aus Viskosefabriken

Verwendung eines Reduktionsmittels für die Reduktion von Carbonylverbindungen

Process for treating a contaminated flow medium

In a contaminated flow medium the contaminant is converted into a different form. This involves the contaminant coming into contact with a reactive metal and hydrogen ions or hydroxyl ions. The reactive material is produced by a metal, in the presence of hydrogen ions, being permeated with another metal having an atomic volume close to that of hydrogen.

METHOD OF THE EXTRACTION OF HYDROGEN SULFIDE FROM THE FLOW OF HIGH-SULPHUR GAS (VERSIONS), THE METHOD OF THE SULFUR REMOVAL OF THE FLOW OF HIGH-SULPHUR GAS AND THE SYSTEM OF THE EXTRACTION OF HYDROGEN SULFIDE FROM THE FLOW OF THE HIGH-SULPHUR GAS

METHOD OF EXTRACTING SULFUR FROM GAS, CONTAINING HYDROGEN SULFIDE

СПОСОБ ПРИГОТОВЛЕНИЯ СЕРЫ ИЗ СУЛЬФИДА ВОДОРОДА, СОДЕРЖАЩЕГОСЯ В ПРИРОДНОМ ГАЗЕ ИЛИ В ПОПУТНОМ ГАЗЕ, И ВОЗМОЖНОЕ ЗАХОРОНЕНИЕ ПОЛУЧЕННОЙ ТАКИМ ОБРАЗОМ СЕРЫ

Способ приготовления серы, получаемой в чистом виде и, возможно, легко подвергающейся захоронению при температуре окружающей среды, из сероводорода, содержащегося в природном газе, при этом способ включает: а) окисление части сероводорода до диоксида серы, b) растворение диоксида серы, полученного в операции (а), в воде, с) осуществление реакции (I): 2H2S + SO2 → 3S + 2H2O, в которой оставшийся сероводород реагирует с раствором, приготовленным при проведении операции (b), и d) использование полученной таким образом суспензии серы для приготовления серы или, в альтернативном случае, для захоронения серы на участках, отведенных для этой цели.

СПОСОБ ИЗВЛЕЧЕНИЯ СЕРЫ ИЗ ГАЗА, СОДЕРЖАЩЕГО СЕРОВОДОРОД

... 1. Способ извлечения серы из потока газа, содержащего сероводород, который содержит следующие стадии: а) подача потока, содержащего сероводород, в каталитический реактор с непрерывным потоком, в котором этот поток, содержащий сероводород, контактирует с потоком, содержащим диоксид серы и жидкий органический растворитель в следующих условиях: i) жидкий органический растворитель содержит гомогенный катализатор, который способствует протеканию жидкофазной реакции 2 H2S + SO2→ 3 S + 2 H2O (I) ii) в реакторе поддерживают температуру выше температуры плавления серы и ниже температуры кипения указанного растворителя, и iii) потоки, содержащие сероводород и диоксид серы, поступают в реактор с такими относительными скоростями подачи, чтобы сероводород находился в избытке относительно диоксида серы в соответствии с реакцией (I), чтобы превратить практически весь диоксид серы в жидкую элементарную серу и получить на выходе из реактора поток, содержащий жидкую элементарную серу и непрореагировавший ...

ХИМИКО-БИОЛОГИЧЕСКИЙ СПОСОБ УДАЛЕНИЯ СЕРОВОДОРОДА ИЗ ГАЗА

Настоящее изобретение относится к способу удаления сероводорода H 2S из газа (1) путем приведения в контакт указанного газа с жидким раствором (2), содержащим сульфат трехвалентного железа в абсорбционной колонне (ХР). Сульфат трехвалентного железа и H 2S взаимодействуют при комнатной температуре и давлении в интервале от 1 до 1,2 атм, при этом ионы трехвалентного железа восстанавливаются до двухвалентного железа, а сульфид окисляется до элементарной серы. Жидкость (4), выходящую из абсорбционной колонны фильтруют в две стадии, причем ретентат (6, 8) включает элементарную серу, фильтрат (5, 7) содержит ионы железа. Фильтрат отправляют в биологический реактор (БР) для регенерации, т. е. окисления железа до Fe3+ с помощью Thiobacillus ferroxidans и нагнетания (10) воздуха. Регенерированный раствор повторно используют в абсорбционной колонне (ХР). Решаемой задачей являются проблемы, относящиеся к совмещению химической и биологической стадий, чтобы получить процесс, который может стабильно ...

METHOD OF OBTAINING THE STABLE AQUEOUS SUSPENSIONS OF SULFUR FROM HYDROGEN SULFIDE AND THE POSSIBLE BURIAL OF OBTAINED THUS SUSPENSIONS

СПОСОБ ПЕРЕРАБОТКИ СЕРОВОДОРОДА

Способ получения стабильных водных суспензий серы из сероводорода, содержащегося в ископаемом топливе, включающий: а) окисление определенного количества сероводорода до диоксида серы; б) растворение полученного таким образом диоксида серы в солоноватой воде или морской воде; в) проведение реакции (1): 2H2S+SO2→→3S+2H2O путем приведения оставшегося сероводорода в контакт с раствором, полученным на стадии (б), и г) утилизацию полученной таким образом суспензии при комнатной температуре в соответствии с наиболее подходящей операцией.

METHOD FOR REMOVING SULFUR COMPOUNDS FROM GAS MIXTURES

Elimination of sulphur and sulphur cpds. from gases - by treatment with aq. suspension of catalytic material partic. active carbon

Process of conversion of the elementary sulphur hydrogen sulphide

PROCEDE D'ELIMINATION ET DE RECUPERATION DU SOUFRE SOUS FORME ELEMENTAIRE A PARTIR DE GAZ CONTENANT DU DIOXYDE DE SOUFRE OU DU DIOXYDE DE SOUFRE ET DE L'HYDROGENE SULFURE

LE PROCEDE SELON L'INVENTION SE CARACTERISE EN CE QUE LE DIOXYDE DE SOUFRE OU LE DIOXYDE DE SOUFRE ET L'HYDROGENE SULFURE CONTENUS DANS LES GAZ, SONT ABSORBES DANS UNE SOLUTION DE LAVAGE PORTANT DU SULFURE DE TELLE SORTE QUE LE PH DE LA SOLUTION DE LAVAGE EST DANS LA GAMME DE 2,5 A 5 OU LE POTENTIEL D'OXYDO-REDUCTION EST DANS LA GAMME DE - 70 A -260 MV PAR RAPPORT A UNE ELECTRODE AU CALOMEL, LA SOLUTION D'EPURATION RESULTANTE EST DIRIGEE DANS UN AUTOCLAVE DANS LEQUEL LES COMPOSES CONTENUS DANS LA SOLUTION SONT TRAITES A UNE TEMPERATURE ELEVEE SI BIEN QUE LES PRODUITS ISSUS DU PROCEDE SONT DU SOUFRE ELEMENTAIRE A L'ETAT FONDU ET UNE SOLUTION DE SULFATE QUI EST REGENEREE EN SULFURE DE FACON CONNUE ET RENVOYEE DANS L'ETAPE D'ABSORPTION.

PROCESS FOR REMOVING SULFUR DIOXIDE AND SULFUR TRIOXIDE FROM WASTE GAS AND PRODUCING SULFUR THEREFROM

PROCESS FOR ELIMINATING THE FORMATION OF WASTE LIQUOR DURING THE DESULFURIZATION OF COKE OVEN GAS

PROCESS OF REGENERATION Of a CATALYTIC SOLUTION REDOX INCLUDING/UNDERSTANDING LAMESURE OF the OXYGEN DISSOLVED IN the EFFLUENT OF REGENERATION AND ITS APPLICATION ENDESULFURATION

PROCESS Of ELIMINATION OF HYDROGEN SULPHURIZES CONTAINED IN a GAS MIXTURE

Process improved for the preparation of sulphur

PROCESS AND DEVICE OF TREATMENT Of a GAS CONTAINING OF HYDROGEN SULPHURIZE AND SULPHUR DIOXIDE, COMPRISING a STAGE Of ELIMINATION OF SULPHUR BY COOLING OF the GAS EFFLUENT

Hydrogen sulphide removal from gases - by reaction with sulphur dioxide in a solvent for sulphur

Elementary sulphur prodn - from hydrogen sulphide and sulphur dioxide using potassium and sodium carboxylates as catalysts

PROCESS FOR THE OXIDATION OF HYDROGEN SULFIDE TO ELEMENTARY SULFUR

Removal of sulphur dioxide from stack gases - by reaction with ammonia, evaporation reaction of the liq. with alkali sulphides to give hydrogen sulphide then pptn of sulphur from gases

PROCESS OF PURIFICATION Of a HYDROGEN GAS CONTAINING OF ACID GASES AND APPLICATIONS OF THE AFORESAID PROCESS

Process for Reducing Sulfur Emission of Sulfur Plant

The present invention provides a process for reducing sulfur emission of a sulfur plant, wherein the sulfur plant includes a thermal reaction unit, a catalytic reaction unit and a tail-gas purification unit, the process is characterized in that the waste-gas from the degassing of the liquid sulfur in the liquid sulfur tank is introduced into the catalytic reaction unit, and/or the waste-gas from the degassing of the liquid sulfur in the liquid sulfur tank is introduced into the tail-gas purification unit. In present invention, the H2S in purified tail-gas can be reduced to no more than 10 ppm(v) and the SOemission concentration of the sulfur plant can be reduced to no more than 100 mg/m. 1. A process for reducing sulfur emission of a sulfur plant , wherein the sulfur plant includes a thermal reaction unit , a catalytic reaction unit and a tail-gas purification unit , the process includes:{'sub': 2', '2', '2', '2', '2, 'introducing a HS-containing acid gas into the thermal reaction unit, combusting the HS-containing acid gas to produce SO, and conducting Claus reaction between HS and SOso as to produce element sulfur and a process gas, wherein the element sulfur is introduced into a liquid sulfur tank to obtain liquid sulfur;'}introducing the process gas into the catalytic reaction unit to carry out Claus catalytic conversion so as to obtain element sulfur and Claus tail-gas, wherein the obtained element sulfur is introduced into the liquid sulfur tank; and{'sub': 2', '2, 'introducing the Claus tail-gas into the tail-gas purification unit, wherein the Claus tail-gas firstly undergoes hydrogenation to produce a hydrogenation tail-gas, and then the hydrogenation tail-gas which comprises HS is cooled down and introduced into an absorption column, wherein HS is absorbed in the absorption column to provide a purified tail-gas;'}characterized in that the waste-gas from the degassing of the liquid sulfur in the liquid sulfur tank is introduced into the catalytic reaction ...

PROCESS FOR THE BIOLOGICAL CONVERSION OF BISULPHIDE INTO ELEMENTAL SULPHUR

The invention is directed to a process for the biological conversion of bisulphide into elemental sulphur, comprising the following steps: a) converting bisulphide as dissolved in an aqueous solution to elemental sulphur in the presence of sulphide-oxidising bacteria and under anaerobic conditions to obtain a first liquid effluent comprising elemental sulphur and used sulphide-oxidising bacteria; b) regenerating the used sulphide-oxidising bacteria as obtained in step (a) and as comprised in an aqueous solution in the presence of an oxidant to obtain a second liquid effluent comprising regenerated sulphide-oxidising bacteria; c) separating elemental sulphur from either the first and/or the second liquid effluent; d) using the regenerated sulphide-oxidising bacteria in step (a) as the sulphide-oxidising bacteria. 1. A process for the biological conversion of bisulphide into elemental sulphur , comprising the following steps:a) converting bisulphide as dissolved in an aqueous solution to elemental sulphur in the presence of sulphide-oxidising bacteria and under anaerobic conditions wherein the concentration of molecular oxygen in the aqueous solution is at most 1 μM to obtain a first liquid effluent comprising elemental sulphur and used sulphide-oxidising bacteria;b) regenerating the used sulphide-oxidising bacteria as obtained in step (a) and as comprised in an aqueous solution in the presence of an oxidant to obtain a second liquid effluent comprising regenerated sulphide-oxidising bacteria;c) separating elemental sulphur from either the first and/or the second liquid effluent;d) using the regenerated sulphide-oxidising bacteria in step (a) as the sulphide-oxidising bacteria.2. The process according to claim 1 , wherein the concentration of molecular oxygen in the aqueous solution is at most 0.1 μM in step (a).3. The process according to claim 1 , wherein more than 80 mol % of the dissolved bisulphide is removed from the aqueous solution by biological remediation by ...

PROCESS FOR HYDROGEN SULFIDE SCRUBBING AND METHOD FOR FERRIC ION REGENERATION

A process and method for removing hydrogen sulfide from a gas and regenerating ferric ions consumed in the hydrogen sulfide scrubbing process at low pH. A two-scrubber regenerative chemical scrubbing system for removing hydrogen sulfide from a gas that provides an economical system for removing hydrogen sulfide from a gas at low pH without the need for chelating agents. An oxide of manganese is used as a catalyst to enhance the regeneration of ferric ions in an aqueous solution under acidic conditions in the presence of oxygen. The process may further include contacting the aqueous solution with a second gas comprising air to replenish the dissolved oxygen in the aqueous solution. The regenerated solution comprising ferric ions can be reused to treat additional hydrogen sulfide containing gases. 1. A process for treating a hydrogen sulfide containing gas , comprising:contacting an aqueous solution containing ferric ions with the hydrogen sulfide containing gas, wherein the aqueous solution has a pH of about 6.0 or less,extracting and dissolving hydrogen sulfide from the hydrogen sulfide containing gas into the aqueous solution,reacting the dissolved hydrogen sulfide with the ferric ions in the aqueous solution to produce ferrous ions and sulfur, wherein the sulfur is insoluble in solution; andregenerating ferric ions in the aqueous solution using a catalyst.2. The process of claim 1 , further comprising contacting the aqueous solution with a second gas.3. The process of claim 2 , wherein the second gas is air.4. The process of claim 1 , wherein the aqueous solution has a pH of 4.5 or less.5. The process of claim 4 , wherein the aqueous solution has a pH of 2.0 or less.6. The process of claim 1 , wherein the catalyst is an oxide of manganese.7. The process of claim 6 , wherein the oxide of manganese is at least one of MnO claim 6 , MnO claim 6 , MnO claim 6 , MnO claim 6 , MnO claim 6 , and MnO.8. The process of claim 6 , wherein the oxide of manganese is MnO.9. The ...

METHOD FOR TREATING SULFIDES IN WASTE STREAMS

A method for treating sulfide in an aqueous fluid comprises contacting the fluid with an oxidizer in the presence of a sulfur dye or sulfurized vat dye. In one embodiment, the method comprises treating sulfide contaminated water by contacting the contaminated water with air in the presence of a sulfur dye or a sulfurized vat dye. The method is useful for remediating industrial, agricultural, and municipal waste water. 116.-. (canceled)17. A method of producing at least one thiosulfate salt , said method comprising:contacting an aqueous fluid comprising bisulfide ions with oxygen or an oxygen-containing gas in the presence of at least one sulfur dye or sulfurized vat dye to produce an aqueous fluid comprising soluble thiosulfate salt(s); andseparating the soluble thiosulfate salt(s) from the at least one sulfur dye or sulfurized vat dye in the aqueous fluid.18. The method of claim 17 , further comprising absorbing hydrogen sulfide into an aqueous fluid comprising an alkali to convert the absorbed hydrogen sulfide to bisulfide ions.19. The method of claim 17 , wherein said aqueous fluid is selected from one of oil processing or gas processing.20. The method of claim 19 , wherein said aqueous fluid comprises waste water.21. The method of claim 18 , wherein said alkali is chosen to produce the desired thiosulfate salt(s).22. The method of claim 18 , wherein the alkali is chosen from sodium hydroxide or potassium hydroxide.23. The method of claim 17 , wherein said sulfur dye or sulfurized vat dye is selected from the group consisting of Sulfur Black 1 claim 17 , Leuco Sulfur Black 1 claim 17 , Solubilized Sulfur Black 1 claim 17 , and mixtures thereof.24. The method of claim 17 , wherein said sulfur dye or sulfurized vat dye is in the Leuco (reduced) form claim 17 , the Solubilized form or mixtures thereof.25. The method of claim 18 , wherein said hydrogen sulfide is generated during at least one of natural gas processing and petroleum refining.26. The method of claim 17 ...

Sulfur Recovery Within A Gas Processing System

A method for recovering sulfur within a gas processing system is described herein. The method includes contacting a natural gas stream including an acid gas with a solvent stream within a co-current contacting system to produce a sweetened natural gas stream and a rich solvent stream including an absorbed acid gas. The method also includes removing the absorbed acid gas from the rich solvent stream within a regenerator to produce a concentrated acid gas stream and a lean solvent stream. The method further includes recovering elemental sulfur from hydrogen sulfide (HS) within the concentrated acid gas stream via a sulfur recovery unit. 1. A gas processing system , comprising: contact a natural gas stream comprising an acid gas with a solvent stream to produce a sweetened natural gas stream and a rich solvent stream comprising an absorbed acid gas; and', 'send the rich solvent stream to a regenerator;, 'a co-current contacting system configured to remove the absorbed acid gas from the rich solvent stream to produce a concentrated acid gas stream and a lean solvent stream; and', 'send the concentrated acid gas stream to a sulfur recovery unit; and, 'the regenerator configured to{'sub': '2', 'the sulfur recovery unit configured to recover elemental sulfur from hydrogen sulfide (HS) within the concentrated acid gas stream.'}2. The gas processing system of claim 1 , wherein the co-current contacting system comprises: an annular support ring configured to maintain the co-current contactor within the pipe;', 'a plurality of radial blades configured to allow the solvent stream to flow into the co-current contactor; and', 'a central gas entry cone configured to allow the natural gas stream to flow through a hollow section within the co-current contactor;', 'wherein the co-current contactor provides for efficient incorporation of liquid droplets formed from the solvent stream into the natural gas stream such that the acid gas from the natural gas stream is absorbed by the ...

METHOD FOR TREATING SULFIDES IN WASTE STREAMS

A method for treating sulfide in an aqueous fluid comprises contacting the fluid with an oxidizer in the presence of a sulfur dye or sulfurized vat dye. In one embodiment, the method comprises treating sulfide contaminated water by contacting the contaminated water with a gas including oxygen in the presence of a sulfur dye or a sulfurized vat dye. The method is useful for remediating industrial, agricultural, and municipal wastewater. 1. A method of selectively oxidizing at least one sulfide in waste water , wherein the sulfide(s) are present in the waste water as a result of degradation of biologically degradable constituents by bacteria during anaerobic treatment , said method comprising:removing the wastewater from an anaerobic or facultative treatment unit to a treatment container;adding at least one sulfur dye or sulfurized vat dye catalyst to the wastewater to form a mixture;aerating the mixture with a gas comprising oxygen to oxidize the sulfide(s) to yield treated water, wherein the treated water has a reduced concentration of sulfide(s) relative to the wastewater; andreturning the treated water to the anaerobic or facultative treatment unit.2. The method of claim 1 , wherein the at least one sulfide is selected from the group consisting of hydrogen sulfide claim 1 , bisulfide ions claim 1 , sulfide ions claim 1 , polysulfide ions and mixtures thereof.3. The method of claim 1 , wherein said sulfur dye is selected from the group consisting of Sulfur Black 1 claim 1 , Leuco Sulfur Black 1 claim 1 , Solubilized Sulfur Black 1 claim 1 , and mixtures thereof.4. The method of claim 1 , wherein said sulfur dye or sulfurized vat dye is introduced into the wastewater as the Leuco (reduced) form of the dye.5. The method of claim 1 , wherein the at least one sulfide comprises hydrogen sulfide.6. The method of claim 1 , wherein the pH of the mixture is greater than or equal to 7.7. The method of claim 6 , wherein the pH is maintained by adding at least one base ...

A PROCESS TO CONVERT BISULPHIDE TO ELEMENTAL SULPHUR

The invention is directed to a control method for a process to convert bisulphide to elemental sulphur in an aqueous solution comprising sulphide-oxidising bacteria wherein the process is controlled by applying a potential between the anode electrode and the cathode electrode or between the anode electrode and the reference electrode of an electrochemical cell resulting in a current between the cathode electrode and the anode electrode, measuring a current as measured by an electrochemical cell and adapting the process in response to the measured current. The process to convert bisulphide may comprise the following steps: (a) contacting bisulphide with oxidised sulphide-oxidising bacteria in the aqueous solution and elemental sulphur, (b) oxidizing the reduced sulphide-oxidising bacteria, (c) using the oxidised sulphide-oxidising bacteria obtained in step (b) in step (a) and (d) isolating elemental sulphur from the aqueous solution obtained in step (a) and/or step (b). 1. A control method for a process to convert bisulphide to elemental sulphur in an aqueous solution comprising sulphide-oxidising bacteria wherein the control method comprisesproviding an electrochemical cell comprising a cathode electrode, an anode electrode and a reference electrode,wherein the electrodes are in contact with the aqueous solution,wherein a potential is applied, the applied potential, between the anode electrode and the cathode electrode or between the anode electrode and the reference electrode resulting in a current between the cathode electrode and the anode electrode,wherein the current is measured running between the cathode electrode and the anode electrode while maintaining a constant potential between the anode electrode and the cathode electrode or while maintaining a constant potential between the anode electrode and the reference electrode,wherein the measured current is a measure of the bioactivity of the sulphide-oxidising bacteria to convert bisulphide to elemental ...

METHODS FOR TREATING SULFIDES IN GASEOUS STREAMS

A method for removing hydrogen sulfide from a biogas, wherein the hydrogen sulfide is absorbed in an aqueous liquid to produce a cleaned gas having a reduced amount of hydrogen sulfide relative to the biogas. The aqueous liquid is subsequently treated by contacting with a sulfur dye or sulfurized vat dye in the presence of an oxidizer such as oxygen gas, to convert the sulfides in the aqueous liquid to a non-toxic, water-soluble, product. 1. A method of removing hydrogen sulfide from biogas and treating removed hydrogen sulfide , said method comprising:introducing the biogas to an aqueous absorption liquid to absorb at least a portion of the hydrogen sulfide in the liquid;harvesting any gas remaining, wherein the remaining gas has a concentration of hydrogen sulfide that is reduced relative the biogas;introducing at least one sulfur dye or sulfurized vat dye catalyst to the aqueous absorption liquid;introducing a gas comprising oxygen to oxidize sulfides in the aqueous absorption liquid to soluble sulfur-containing salts.2. The method of claim 1 , wherein the soluble sulfur-containing salts in the treated aqueous absorption liquid are separated from the sulfur dye or sulfurized vat dye.3. The method of claim 1 , wherein the sulfides are selected from the group consisting of hydrogen sulfide claim 1 , bisulfide ions claim 1 , sulfide ions claim 1 , polysulfide ions and mixtures thereof.4. The method of claim 1 , wherein said sulfur dye or sulfurized vat dye is selected from the group consisting of Sulfur Black 1 claim 1 , Leuco Sulfur Black 1 claim 1 , Solubilized Sulfur Black 1 claim 1 , and mixtures thereof.5. The method of claim 1 , wherein said sulfur dye or sulfurized vat dye is introduced into the aqueous absorption liquid as the Leuco (reduced) form of the dye.6. The method of claim 1 , wherein the sulfides comprise hydrogen sulfide.7. The method of claim 1 , wherein the aqueous absorption liquid has a pH that permits the absorption of hydrogen sulfide from ...

SULFUR REMOVAL METHODS

A method for removing sulphur from a fluid by the steps of providing a first fluid comprising a sulphur-containing compound; adsorbing the sulphur of sulphur-containing compound onto an adsorbent; regenerating the adsorbent by oxidation of the adsorbed sulphur to sulphur dioxide thereby yielding an off-gas stream comprising sulphur dioxide; providing a second fluid comprising hydrogen sulphide, using the second fluid and the off-gas stream as reactants in a Claus process for producing elemental sulphur, wherein a part of hydrogen sulphide provided by the second fluid is oxidized to sulphur dioxide and water at reaction temperature, the residual hydrogen sulphide, the resulting sulphur oxide and the sulphur oxide provided by the off-gas stream are converted to elemental sulphur, the oxygen required for the oxidation of the hydrogen sulphide provided by the second fluid is provided by an air stream, and the off-gas stream dilutes the second fluid in the Claus process. 1. A method for removing sulphur from a fluid , comprising the steps of:providing a first fluid comprising a sulphur-containing compound;adsorbing the sulphur of said sulphur-containing compound onto an adsorbent;regenerating said adsorbent by oxidation of said adsorbed sulphur to sulphur dioxide thereby yielding an off-gas stream comprising sulphur dioxide;providing a second fluid comprising hydrogen sulphide; wherein a part of hydrogen sulphide provided by said second fluid is oxidized to sulphur dioxide and water at a reaction temperature;', 'wherein the residual hydrogen sulphide, the resulting sulphur oxide and said sulphur oxide provided by said off-gas stream are converted to elemental sulphur;', 'wherein the oxygen required for said oxidation of said hydrogen sulphide provided by said second fluid is provided by an air stream; and', 'wherein said off-gas stream dilutes said second fluid in said Claus process;', 'characterized in that,, 'using said second fluid and said off-gas stream as reactants ...

A device, process, and catalyst intended for desulfurization and demercaptanization of gaseous hydrocarbonsd

This application is in the field of technologies for desulfurization and demercaptanization of gaseous hydrocarbons. The device includes a catalytic reactor loaded with a catalyst solution in an organic solvent, a means of withdrawal sulfur solution from the reactor into the sulfur-separating unit, and a sulfur-separating unit. The said device has at least means of supplying gaseous hydrocarbon medium to be purified and oxygen-containing gas into the reactor, and a means of outletting the purified gas from the reactor. The sulfur-separation unit includes a means of sulfur extraction. The reactor design and the catalyst composition provide conversion of at least 99.99% of hydrogen sulfide and mercaptans into sulfur and disulfides. The catalyst is composed of mixed-ligand complexes of transition metals. The technical result achieved by use of claimed invention is single-stage purification of gaseous hydrocarbons from hydrogen sulfide and mercaptans with remaining concentration of —SH down up to 0.001 ppm.

METHOD FOR TREATING SULFIDES IN WASTE STREAMS

A method for removing sulfides from an aqueous liquid, wherein the aqueous liquid is contacted with an oxidizer in the presence of fibrous material dyed with at least one sulfur dye or sulfurized vat dye, to convert the sulfides in the aqueous liquid to a non-toxic product. 1. A method for treating sulfide in an aqueous liquid comprising contacting the aqueous liquid comprising at least one sulfide with an oxidizer in the presence of fibrous material dyed with at least one sulfur dye or sulfurized vat dye , to convert the at least one sulfide in the aqueous liquid to at least one non-toxic product and produce a treated liquid having a reduced concentration of the at least one sulfide.2. The method of claim 1 , wherein the at least one sulfide is selected from the group consisting of hydrogen sulfide claim 1 , bisulfide ions claim 1 , sulfide ions claim 1 , polysulfide ions and mixtures thereof.3. The method of claim 1 , wherein said sulfur dye or sulfurized vat dye is selected from the group consisting of Sulfur Black 1 claim 1 , Leuco Sulfur Black 1 claim 1 , Solubilized Sulfur Black 1 claim 1 , and mixtures thereof.4. The method of claim 1 , wherein said oxidizer comprises oxygen or an oxygen-containing gas.5. The method of claim 1 , wherein the at least one sulfide comprises bisulfide ions.6. The method of claim 1 , wherein the at least one non-toxic product comprises thiosulfate ions.7. The method of claim 1 , wherein the fibrous material comprises at least one of a cellulosic fiber claim 1 , a synthetic staple fiber claim 1 , or an animal-based fiber.8. The method of claim 7 , wherein the fibrous material comprises at least one of cotton claim 7 , wood claim 7 , paper claim 7 , pulp claim 7 , polyolefins claim 7 , polyesters claim 7 , polyamides claim 7 , poly(lactic acid) claim 7 , cellulose derivatives claim 7 , hair claim 7 , or wool.9. The method of claim 1 , wherein the fibrous material comprises pulp fibers.10. The method of claim 1 , wherein the aqueous ...

PROCESS AND APPARATUS FOR TREATING A SULPHUR-CONTAINING OFF-GAS FROM A SULPHUR RECOVERY SYSTEM

The invention relates to a process and apparatus for recovering sulfur (). In a sour gas scrubbing apparatus (S) comprises a scrubbing part (SP) and a regeneration part (RP), wherein sulfur components and carbon dioxide are selectively removed from a crude synthesis gas () with the aid of a circulating scrubbing agent (). A sulfur-containing gas fraction () produced during the regeneration of loaded scrubbing agent is supplied to a sulfur recovery system (SR) in which an off-gas () comprising carbon dioxide and also sulfur components is formed. The off-gas is hydrogenated (H) and subsequently subjected to a gas scrubbing operation (Z). The hydrogenated off-gas () is scrubbed, independently of the crude synthesis gas (), and scrubbing agent () removed from the scrubbing agent circuit of the sour gas scrubbing apparatus (S) is used to scrub out sulfur components from the hydrogenated off-gas (). 19. A process for recovering sulfur () , comprising:{'b': 2', '3, 'selectively removing sulfur components and carbon dioxide from a crude synthesis gas () in a sour gas scrubbing apparatus (S), comprising a scrubbing part (SP) and a regeneration part (RP), with the aid of a circulating scrubbing agent (), and'}{'b': 8', '10', '12, 'supplying a sulfur-containing gas fraction () produced during the regeneration of loaded scrubbing agent to a sulfur recovery system (SR) in which an off-gas () comprising carbon dioxide and also sulfur components is formed, hydrogenated (H) to produce a hydrogenated off-gas (), and'}{'b': '12', 'subsequently subjecting said hydrogenated off-gas () to a gas scrubbing operation (Z),'}{'b': 12', '2', '13', '12, 'wherein the scrubbing of said hydrogenated off-gas () in said gas scrubbing operation (Z) conducted independently of the scrubbing of the crude synthesis gas () in said a sour gas scrubbing apparatus (S), and scrubbing agent () removed from the sour gas scrubbing apparatus (S) is used to scrub out sulfur components of said hydrogenated off-gas ...

METHOD FOR TREATING SULFIDES IN WASTE STREAMS

A method for treating sulfide in an aqueous fluid comprises contacting the fluid with an oxidizer in the presence of a sulfur dye or sulfurized vat dye. In one embodiment, the method comprises treating sulfide contaminated water by contacting the contaminated water with air in the presence of a sulfur dye or a sulfurized vat dye. The method is useful for remediating industrial, agricultural, and municipal waste water. 116.-. (canceled)17. A method for treating sulfides in a waste water impoundment comprising introducing at least one sulfur dye or sulfurized vat dye to the waste water impoundment and contacting the waste water with oxygen , at least a portion of said oxygen being supplied by surface transfer of atmospheric oxygen , thus providing a treated water having a reduced concentration of sulfides relative to the waste water.18. The method of claim 17 , wherein said sulfides are selected from the group consisting of hydrogen sulfide claim 17 , bisulfide ions claim 17 , sulfide ions claim 17 , polysulfide ions and mixtures thereof.19. The method of claim 17 , wherein said sulfur dye is selected from the group consisting of Sulfur Black 1 claim 17 , Leuco Sulfur Black 1 claim 17 , Solubilized Sulfur Black 1 and mixtures thereof.20. The method of claim 17 , wherein the sulfides were oxidized to soluble sulfur-containing salts.21. The method of claim 20 , further comprising separating the soluble sulfur-containing salts from the at least one sulfur dye or sulfurized vat dye in the treated water.22. The method of claim 20 , wherein the oxidation of the sulfides occurs under alkaline conditions.23. The method of claim 21 , wherein the sulfur dye or sulfurized vat dye separated from the treated water is reused.24. The method of claim 23 , wherein the separation can be effectuated using filtration or ultrafiltration.25. The method of claim 17 , wherein the treatment operates continuously or as batch processes.26. A method of removing hydrogen sulfide from gaseous ...

PROCESS FOR PREPARING SULFUR FROM REDUCTION OF SULFATE/ NITRATE BY IRON-CARBON AND RECOVERING DESULFURIZATION/ DENITRATION AGENTS

The present invention discloses a process for preparing sulfur from reduction of sulfate/nitrate by iron-carbon and recovering desulfurization/denitration agents. High-concentration SOflue gas produced by calcination of a sulfate and NOx produced by heating decomposition of a nitrate can be directly reduced to elemental sulfur vapor and Nthrough reaction with an iron-carbon material at a high temperature. Then, after dust removal, cooling and fine dust removal, sulfur is recovered by a sulfur recovery device, and metal oxides can replace alkaline mineral resources such as limestone as raw materials of desulfurization (denitration) agents. This process can recycle the desulfurization and denitration agents. 1. A system for preparing sulfur from reduction of sulfate/nitrate by iron-carbon and recovering desulfurization/denitration agents , the system comprising:a desulfurization tower, a denitration tower, a chimney, a drying device, a roaster for reduction, a first separator, a second separator, a thermal reduction tower using carbon, a third separator, a reheater, a fine dust removing device, a sulfur recovery device, a sulfur storage bin, a concentration device, a pneumatic transporting device, and a nitrate decomposition tower, wherein a flue gas inlet of the desulfurization tower is connected to a flue gas source, a flue gas outlet of the desulfurization tower is connected to a flue gas inlet of the denitration tower, a flue gas outlet of the denitration tower is connected to an inlet of a wet electrostatic precipitator, and an outlet of the wet electrostatic precipitator is connected to an inlet of the chimney;a tower kettle of the desulfurization tower is connected to an inlet of the drying device, an outlet of the drying device is connected to an inlet of a sulfate bin, the sulfate bin is connected to the roaster for reduction, and the roaster for reduction is also connected to an iron powder source and a carbon powder source;a tower kettle of the denitration ...

PROCESS FOR IN-SITU PRODUCTION OF LOW DISSOLVED HYDROGEN SULFIDE, DEGASSED, SULFUR FROM CLAUS SULFUR RECOVERY

A process of producing degassed liquid sulfur within a horizontal sulfur condenser may include condensing a portion of a Claus process gas introduced into a condenser tube to produce liquid sulfur; creating first and second chambers above a liquid sulfur reservoir with a baffle; passing the liquid sulfur and the Claus process gas into the first chamber; forcing the Claus process gas from the liquid reservoir within the first chamber to the second chamber; causing a chemical reaction between dissolved hydrogen sulfide in the liquid sulfur and sulfur dioxide from the Claus process gas on a catalyst to produce elemental sulfur and reducing the dissolved HS content of the remaining sulfur; converting hydrogen sulfide by a Claus reaction; decomposing polysulfanes to hydrogen sulfide and sulfur, freeing elemental sulfur from hydrogen sulfide; forcing the Claus process bubbles from the liquid reservoir into the second chamber above the liquid reservoir. 1. A process of producing degassed liquid sulfur within a sulfur condenser , comprising:providing a Claus process gas inlet in a first end of a casing of the sulfur condenser;providing a Claus process gas outlet in a second end of the casing of the sulfur condenser;providing a liquid sulfur outlet in a second end of the casing of the sulfur condenser;providing a condenser tube within the sulfur condenser between the first end of the casing and the second end of the casing;introducing a Claus process gas through the Claus process gas inlet, into the condenser tube, and through an interior of the condenser tube from a condenser tube inlet to a condenser tube outlet;condensing a portion of the Claus process gas within the condenser tube to produce condensed elemental sulfur; andpassing the liquid elemental sulfur and the Claus process gas into a liquid reservoir proximate the second end of the casing.2. The process of claim 1 , further comprising:providing a baffle wall that protrudes from the casing above the liquid reservoir ...

PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM

A process of producing degassed liquid sulfur using process gas containing H2S to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas is less costly and less complicated and quickly accomplishes substantial degassing rendering the liquid sulfur much safer in storage and transportation. 1. A process for producing liquid sulfur that is degassed of HS , wherein the process comprises:a) providing a sulfur degassing catalyst and liquid sulfur into a vessel wherein the sulfur degassing catalyst and liquid sulfur define a contact zone;{'sub': 2', '2', 'x, 'b) directing condensed products from a Claus plant into the contact zone of the vessel wherein the condensed products include elemental sulfur, dissolved HS and HSwhere x≧2;'}{'sub': 2', 'x', '2, 'c) catalyzing the conversion of HSon the surface of the sulfur degassing catalyst to form HS and elemental sulfur;'}{'sub': 2', '2, 'd) directing a process gas from the Claus plant at an elevated pressure into the contact zone of the vessel to agitate the sulfur degassing catalyst and liquid sulfur and carry HS that has formed on the surface of the sulfur degassing catalyst away from the sulfur degassing catalyst; wherein the process gas includes HS;'}{'sub': '2', 'e) exhausting the processes gases along with HS from the contact zone for further processing in the Claus plant; and'}{'sub': '2', 'f) extracting liquid sulfur that is degassed of HS from the contact zone.'}2. The process according to claim 1 , wherein the step of providing a sulfur degassing catalyst comprises providing a plurality of high surface area alumina particles constrained to prevent being removed or carried away from the contact zone.3. The process according to claim 2 , wherein the step of providing a sulfur degassing catalyst further comprises providing a plurality of high surface area alumina particles impregnated with iron oxide.4. The process according to claim 1 , wherein the step of providing a sulfur ...

RENEWABLE HIGH EFFICIENT DESULFURIZATION PROCESS USING A SUSPENSION BED

Provided is a renewable high efficient desulfurization process using a suspension bed, comprising mixing the desulfurization slurry with a hydrogen sulfide containing gas to obtain a first mixture, and passing the first mixture into a suspension bed reactor from bottom to top, with controlling the first mixture to have a dwell time of 5-60 minutes in the suspension bed reactor to allow they contact and react sufficiently with each other; and subjecting a second mixture obtained from the reaction to gas liquid separation to produce a rich solution and a purified gas, feeding the purified gas into a fixed bed reactor for carrying out a second desulfurization to obtain a second purified gas, subjecting the resulting rich solution to flash evaporation and then reacting with an oxygen-containing gas for carrying out regeneration. The process may reduce the sulfur content in the hydrogen sulfide containing gas from 2.4-140 g/Nmto 50 ppm or less by using a suspension bed, and further reduce the sulfur content to less than 10 ppm in conjunction with a fixed bed. The invention achieves high efficient desulfurization by combining the suspension bed with the fixed bed connected in series. The present invention has high regeneration efficiency, and the barren solution may be recycled for being used as the desulfurization slurry, without generating secondary pollution, which is very suitable for industrial promotion. 1. A renewable high efficient desulfurization process using a suspension bed , comprising the following steps:(1), mixing a desulfurizer with water uniformly to prepare a desulfurization slurry;(2), mixing the desulfurization slurry with a hydrogen sulfide containing gas to obtain a first mixture, and passing the first mixture into a suspension bed reactor from bottom to top, with controlling the first mixture to have a dwell time of 5-60 minutes in the suspension bed reactor to allow the desulfurization slurry to contact and react sufficiently with the hydrogen ...

METHOD FOR TREATING SULFIDES IN WASTE STREAMS

A method for treating sulfide in an aqueous fluid comprises contacting the fluid with an oxidizer in the presence of a sulfur dye or sulfurized vat dye. In one embodiment. the method comprises treating; sulfide contaminated water by contacting the contaminated water with a gas including oxygen in the presence of a sulfur dye or a sulfurized vat dye. The method is useful for remediating industrial, agricultural, and municipal wastewater. 1. A method of removing sulfides from wastewater comprising:removing the wastewater from an anaerobic or facultative treatment unit to a treatment container;adding at least one sulfur dye or sulfurized vat dye catalyst to the wastewater to form a mixture;aerating the mixture with a gas comprising oxygen to oxidize the sulfides to yield treated water, wherein the treated water has a reduced concentration of sulfide relative to the wastewater; andreturning the treated water to the anaerobic or facultative treatment unit,wherein the sulfides are present in the wastewater as a result of degradation of biologically degradable constituents by bacteria during anaerobic treatment.2. The method of claim 1 , wherein the at least one sulfide is selected from the group consisting of hydrogen sulfide claim 1 , bisulfide ions claim 1 , sulfide ions claim 1 , polysulfide ions and mixtures thereof.3. The method of claim 1 , wherein said sulfur dye is selected from the group consisting of Sulfur Black 1 claim 1 , Leuco Sulfur Black 1 claim 1 , Solubilized Sulfur Black 1 claim 1 , and mixtures thereof.4. The method of claim 1 , wherein said sulfur dye or sulfurized vat dye is introduced into the wastewater as the Leuco (reduced) form of the dye.5. The method of claim 1 , wherein the sulfides comprise hydrogen sulfide.6. The method of claim 1 , wherein the pH of the mixture is greater than or equal to 7.7. The method of claim 6 , wherein the pH is maintained by adding at least one base selected from the group consisting of sodium hydroxide claim 6 , ...

PROCESS FOR DEGASSING CONDENSED SULFUR FROM A CLAUS SULFUR RECOVERY SYSTEM

A process of producing degassed liquid sulfur using agitation gas to agitate the liquid sulfur being degassed while in contact with a degassing catalyst. Process gas may be blended with the agitation gas wherein the process gas contains HS to accomplish substantial degassing rendering the liquid sulfur much safer in storage and transportation. 1. A process for producing liquid sulfur that is degassed of HS , wherein the process comprises:a) providing a sulfur degassing catalyst and liquid sulfur into a vessel wherein the sulfur degassing catalyst and liquid sulfur define a contact zone;{'sub': 2', '2', 'x, 'b) directing condensed products from a Claus plant into the contact zone of the vessel wherein the condensed products include elemental sulfur, dissolved HS and HSwhere x≧2;'}{'sub': 2', 'x', '2, 'c) catalyzing the conversion of HSon the surface of the sulfur degassing catalyst to form HS and elemental sulfur;'}{'sub': '2', 'd) directing agitation gas at an elevated pressure into the contact zone of the vessel to agitate the sulfur degassing catalyst and liquid sulfur and carry HS that has formed on the surface of the sulfur degassing catalyst away from the sulfur degassing catalyst;'}e) blending process gas drawn from an intermediate step of the Claus plant into the agitation gas prior to the agitation gas being directed into the contact zone;{'sub': '2', 'f) exhausting the agitation gas along with HS from the contact zone to the Claus plant for further processing in the Claus plant; and'}{'sub': '2', 'g) extracting liquid sulfur that is degassed of HS from the contact zone.'}2. The process according to claim 1 , wherein the step of providing a sulfur degassing catalyst comprises providing a plurality of high surface area alumina particles constrained to prevent being removed or carried away from the contact zone.3. The process according to claim 2 , wherein the step of providing a sulfur degassing catalyst further comprises providing a plurality of high surface ...

Sulphur reducing bacterium and its use in biological desulphurisation processes

A new sulphur-reducing bacterium denoted as KT7 is described . It is a low-GC Gram-positive bacterium related to the genus Des ulfoto-maculum, capable of reducing sulphite and sulphate to sulp hide, having an optimum growth at a temperature between 48 and 70 DEG C, at a pH of between 5 and 9 and at a conductivity of the l iquid medium between 0 and 40 mS/cm. It can be used in a process for removing sulphur compounds from water, wherein the sulphur-co ntaining water is subjected to anaerobic treatment with the new s ulphur-reducing bacteria, with the addition of an electron donor. The sulphur-containing water can be spent scrubbing liquid from a flue gas desulphurisation step.

Proceso para la conversion biologica de bisulfuro en azufre elemental.

La invención está dirigida a un proceso para la conversión biológica de bisulfuro a azufre elemental, que comprende los siguientes pasos: a) convertir bisulfuro, tal como está disuelto en una solución acuosa, a azufre elemental en presencia de bacterias oxidantes de sulfuro y bajo condiciones anaeróbicas para obtener un primer efluente líquido que comprende azufre elemental y bacterias oxidantes de sulfuro usadas; b) regenerar las bacterias oxidantes de sulfuro usadas como se obtiene en el paso (a) y como están comprendidas en una solución acuosa en presencia de un oxidante para obtener un segundo efluente líquido que comprende bacterias oxidantes de sulfuro regeneradas; c) separar el azufre elemental, ya sea del primer y/o el segundo efluente líquido; d) usar las bacterias oxidantes de sulfuro regeneradas en el paso (a) como las bacterias oxidantes de sulfuro.

Method of producing elementary sulfur from gases

Method and apparatus for removing sulphur dioxide and possible hydrogen sulphide as well as nitric oxides from exhaust gases by means of sulphides in a liquid phase so that the sulphur is recovered in the form of molten elemental sulphur. The sulphur bearing gas is scrubbed in a scrubber 1 by contact with a sulphide bearing scrubbing solution whose pH is in the range 2.5 to 5 or oxidation-reduction potential is in the range -70 to -250 mV, with respect to a calomel electrode. The used scrubbing solution is passed to an autoclave 2 to generate molten elemental sulphur and a sulphate solution. …<??>The sulphate solution passes to a regeneration stage 3 where barium sulphide is supplied to produce sodium sulphide and barium sulphate. The sodium sulphide passing back to the scrubbing stage 1 and the barium sulphate being reduced 4. Gases from the barium sulphate reduction may be fed into the scrubber. …<IMAGE>…

Method for treating sulfide-containing sewage

FIELD: treating sulfide-containing sewage; may be used as a part of process for treating sewage containing sulfates or sulfites. SUBSTANCE: sewage is admitted into reactor containing sulfide-oxidizing bacteria. The latter oxidize sulfides to elemental sulphur in presence of oxygen. At least portion of sulphur formed by oxidation is recovered from sewage and recycled back to reactor so as to maintain elemental sulphur concentration therein at level of at least 1 g/l. Sulphur in the form of large-size coalesced particles is used as carrier of sulfide-oxidizing bacteria. EFFECT: higher efficiency. 11 cl, 8 dwg с6960 тс ПЧ Го РОССИЙСКОЕ АГЕНТСТВО ПО ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (19) (51) МПК ВИ” 2 109 692 `'” Сл С 02Е 3/34, С 01 В 17/06 12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ РОССИЙСКОЙ ФЕДЕРАЦИИ (21), (22) Заявка: 96100756/25, 09.06.1994 (30) Приоритет: 10.06.1993 МЕ 93 01 000 (46) Дата публикации: 27.04.1998 (56) Ссылки: РСТ, заявка 9210270, В 010 53/14, 53/34, С 02 Е 3/34, 1992. (86) Заявка РСТ: МЕ 94/00132 (09.06.94) (71) Заявитель: Паквес Б.В. (М) (72) Изобретатель: Сес Ян Нико Бейсман[МЕ] (73) Патентообладатель: Паквес Б.В. (М) (54) СПОСОБ ОЧИСТКИ СУЛЬФИДСОДЕРЖАЩИХ СТОЧНЫХ ВОД (57) Реферат: Изобретение относится к способам очистки сточных вод, содержащих сульфиды, и может быть использовано также как часть процесса очистки стоков, содержащих сульфаты или сульфиты. Сульфиды окисляют до элементарной серы в реакторе с сульфидокисляющими бактериями в присутствии кислорода. По крайней мере часть серы, образовавшейся во время окисления, выделяют из сточной воды и возвращают обратно в реактор таким образом, чтобы поддерживать в нем концентрацию элементарной серы не менее 1 ил. Сера в форме агрегированных частиц используется в качестве носителя для сульфидокисляющих бактерий. 2 с. и 9 зп. ф-лы, 3 ил. фиг.1 2109692 С1 КО с6960 тс ПЧ Го КУЗЗАМ АСЕМСУ ГОК РАТЕМТ$ АМО ТКАОЕМАКК$ (19) 12) АВЗТКАСТ ОЕ 1МУЕМТОМ ВИ "” 2 109 692‘ о С 02Е 3/34, С 01 В 17/06 (21), (22) АррИсаНоп: 96100756/ ...

Method of purifying industrial gases from sulfurous acid anhydride

Apparatus, method and catalyst for the purification of a gaseous raw hydrocarbon from hydrogen sulfide and mercaptans

FIELD: chemistry. SUBSTANCE: invention relates to an apparatus, method and catalyst for the purification of a gaseous raw hydrocarbon from hydrogen sulfide and mercaptans. Apparatus comprises a catalytic reactor filled with a solution of an oxidation catalyst for hydrogen sulfide and mercaptans in an organic solvent, which converts at least 99.99 % of hydrogen sulphide and mercaptans into sulfur and disulfides, means for supplying the purified gaseous raw hydrocarbon and oxygen-containing gas to the reactor, means for removing the purified gas from the reactor, device for removing the sulfur solution from the reactor, and sulfur separation unit. Catalyst is 0.0001–100 % solution of a mixture of iron and/or copper chlorides, amine and amide, taken in the ratio of 1:20–1:0.1, in alcohol. Invention provides a one-stage purification of gaseous hydrocarbons simultaneously from hydrogen sulfide and mercaptans to a residual content of -SH down to 0.001 ppm in the absence of toxic waste. EFFECT: invention provides a one-stage purification of gaseous hydrocarbons simultaneously from hydrogen sulfide and mercaptans. 16 cl, 2 dwg, 6 tbl РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 649 442 C2 (51) МПК B01D 53/48 (2006.01) B01D 53/52 (2006.01) B01D 53/86 (2006.01) B01J 27/122 (2006.01) B01J 31/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК B01D 53/48 (2017.08); B01D 53/52 (2017.08); B01D 53/86 (2017.08); B01J 27/122 (2017.08); B01J 31/00 (2017.08) (21)(22) Заявка: 2016116049, 25.04.2016 25.04.2016 Дата регистрации: 03.04.2018 (43) Дата публикации заявки: 30.10.2017 Бюл. № 31 (45) Опубликовано: 03.04.2018 Бюл. № 10 2398735 C1, 10.09.2010. RU 2197318 C1, 27.01.2003. RU 2394635 C2, 20.07.2010. RU 2481887 C2, 20.05.2013. RU 2286838 C2, 10.11.2006. RU 2562481 C2, 10.09.2015. SU 1755902 A1, 23.08.1992. 2 6 4 9 4 4 2 (54) Установка, способ и катализатор очистки газообразного углеводородного сырья от сероводорода и меркаптанов ...

Method of converting bisulphide to elemental sulfur

FIELD: chemical or physical processes. SUBSTANCE: invention relates to a control method for a method of converting bisulphide to elemental sulfur in an aqueous solution containing sulphide-oxidising bacteria, in which an electrochemical cell is provided, comprising a cathode electrode, an anode electrode and a reference electrode, where said electrodes are in contact with said aqueous solution, where a certain potential is applied between the anode electrode and the cathode electrode or between the anode electrode and the reference electrode, thus obtaining current between the cathode electrode and the anode electrode, where this current is measured between the cathode electrode and the anode electrode, while maintaining a constant potential between the anode electrode and the cathode electrode or maintaining a constant potential between the anode electrode and the reference electrode, where the measured current is a measure of the bioactivity of the sulphide-oxidising bacteria in the conversion of bisulphide to elementary sulfur, and the method is adapted in response to the measured current. EFFECT: use of the disclosed method enables real-time measurement of the bioactivity of sulphide-oxidising bacteria. 16 cl, 6 dwg, 1 tbl, 4 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 769 804 C2 (51) МПК C01B 17/05 (2006.01) C02F 3/34 (2006.01) B01D 53/52 (2006.01) G01N 27/49 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C01B 17/05 (2021.08); C02F 3/34 (2021.08); B01D 53/52 (2021.08); G01N 27/49 (2021.08) (21)(22) Заявка: 2019143425, 30.05.2018 (24) Дата начала отсчета срока действия патента: Дата регистрации: 06.04.2022 R U 30.05.2018 (72) Автор(ы): КЛОК, Йоханнес Бернардус Мария (NL), ТЕР ХЕЙНЕ, Аннемик (NL), ДЕ РИНК, Фредерикус (NL), БЕЙСМАН, Сес Ян Нико (NL) (73) Патентообладатель(и): ПАКЕЛЛ Б.В. (NL) 01.06.2017 EP 17173888.3 (43) Дата публикации заявки: 09.07.2021 Бюл. № 19 (45) Опубликовано: 06.04.2022 Бюл. № ...

Способ превращения бисульфида в элементарную серу

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 143 425 A (51) МПК C01B 17/05 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019143425, 30.05.2018 (71) Заявитель(и): ПАКЕЛЛ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 01.06.2017 EP 17173888.3 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2020 R U (43) Дата публикации заявки: 09.07.2021 Бюл. № 19 (72) Автор(ы): КЛОК, Йоханнес Бернардус Мария (NL), ТЕР ХЕЙНЕ, Аннемик (NL), ДЕ РИНК, Фредерикус (NL), БЕЙСМАН, Сес Ян Нико (NL) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/219991 (06.12.2018) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Регулирующий способ для способа превращения бисульфида в элементарную серу в водном растворе, содержащем сульфид-окисляющие бактерии, в котором обеспечивают электрохимическую ячейку, содержащую катодный электрод, анодный электрод и контрольный электрод, где данные электроды находятся в контакте с данным водным раствором, где некоторый потенциал прикладывают между анодным электродом и катодным электродом или между анодным электродом и контрольным электродом, получая ток между катодным электродом и анодным электродом, где данный ток измеряют между катодным электродом и анодным электродом, поддерживая постоянный потенциал между анодным электродом и катодным электродом или поддерживая постоянный потенциал между анодным электродом и контрольным электродом, где измеренный ток является мерой биоактивности сульфид-окисляющих бактерий в превращении бисульфида в элементарную серу, и адаптируют данный способ в ответ на измеряемый ток. 2. Регулирующий способ по п. 1, в котором данный приложенный потенциал составляет от -0,6 В до 0,4 В в расчете на анодный потенциал относительно контрольного электрода Ag/AgCl. 3. Регулирующий способ по любому из пп. 1-2, в котором ток измеряют при более чем одном разном ...

Renewable highly efficient method of desulfurization using weighed layer

FIELD: technological processes.SUBSTANCE: method for renewable high-efficiency desulfurization using a slurry layer has been proposed, comprising a stage in which a desulfurization slurry is mixed with a hydrogen sulfide-containing gas to produce a first mixture, the first mixture is passed from the bottom up in the reactor with a suspension layer, while controlling that the exposure time of the first mixture in the reactor with a suspension layer was 5–60 minutes, to allow the desulfurizing suspension to sufficiently come into contact and react with the hydrogen sulfide gas, wherein the hydrogen sulfide gas is selected from the group consisting of biogas, coke oven gas, associated gas, natural gas, petrochemical gas, or any mixture thereof; and the stage in which the second mixture is released from the top of at least one reactor with a suspension layer, the second mixture is subjected to separation into gas and liquid to obtain a purified gas and an enriched solution, and the purified gas is fed into a fixed bed reactor for the second stage of desulfurization and to obtain a second purified gas stream, wherein the fixed bed reactor contains a desulfurizer selected from the group consisting of amorphous iron oxide, iron oxide, iron hydroxide, copper oxide, zinc oxide and any mixture thereof, and the gas flow rate in the fixed bed reactor is from 1 to 20 m/s, and the resulting enriched solution is subjected to a single evaporation, and then reaction with oxygen-containing gas to conduct regeneration. In this way it is possible to reduce the sulfur content in hydrogen sulfide gas from 2.4–140 g/n⋅mup to 50 ppm or less by using a slurry layer, and in combination with a fixed bed, the sulfur content can be further reduced to less than 10 ppm.EFFECT: present invention provides highly efficient desulfurization by combining a fixed bed suspension layer connected in series; this invention has a high regeneration efficiency, and the depleted solution can be reused as a ...

Method of removing hydrogen sulfide from gases

Изобретение относитс  к процес сам очистки газа от сероводорода его жидкофазным окислением в элементарную серу.л Целью изобретени   вл етс  повьппение степени очистки и упрощение процесса. Очистку газа от сероводорода осуществл ют путем окислительной промьгеки щелочным раствором, содержащим п тивалентный ванадий, родонит натри  и диэтаноламин, вз тый в концентрации 50 г/л. The invention relates to the process of gas purification from hydrogen sulfide by its liquid-phase oxidation to elemental sulfur. The aim of the invention is to improve the degree of purification and simplify the process. Gas removal from hydrogen sulphide is carried out by oxidizing stripping with an alkaline solution containing pentavalent vanadium, sodium rhodonite and diethanolamine, taken at a concentration of 50 g / l.

Patent RU2019143425A3

7 ВУ’” 2019143425” АЗ Дата публикации: 08.09.2021 Форма № 18 ИЗ,ПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2019143425/04(084220) 30.05.2018 РСТ/ЕР2018/064151 30.05.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 17173888.3 01.06.2017 ЕР Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ ПРЕВРАЩЕНИЯ БИСУЛЬФИДА В ЭЛЕМЕНТАРНУЮ СЕРУ Заявитель: ПАКЕЛЛ Б.В., МГ. 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СО1В 17/05 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СО1В 17/05, СО2Е 3/34, ВОО 53/52, СОМ 27/49 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): ЕАРАТГУ, Езрасепе%, ]-Р]а Рав Рабеагсь, КОРТО, ОРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- Наименование документа с указанием (где необходимо) частей, Относится к гория* относящихся к предмету поиска пункту формулы № 1 2 ...

System and process for gas sweetening

A method for removing hydrogen sulfide from a sour gas stream comprising hydrogen sulfide by oxidizing hydrogen sulfide in a converter by contacting the sour gas stream with an aqueous catalytic solution, thereby producing a desulfurized gas stream and a liquid stream comprising reduced catalyst and elemental sulfur, introducing an oxidant and the liquid stream comprising reduced catalyst and elemental sulfur into a high shear device and producing a dispersion wherein the mean bubble diameter of the oxidant gas in the dispersion is less than about 5 μm, introducing the dispersion into a vessel from which a sulfur-containing slurry is removed and a regenerated catalyst stream is removed, wherein the sulfur slurry comprises elemental sulfur and aqueous liquid, and recycling at least a portion of the regenerated catalyst stream to the converter. A system of apparatus for carrying out the method is also provided.

Device for sulfur condensation

FIELD: oil and gas industry; oil refining industry; chemical industry.SUBSTANCE: invention relates to devices for condensation of sulfur vapor. Device includes a sulfur condensation contact unit and a cleaned gas washing unit, wherein the sulfur condensation unit and the cleaned gas washing unit are equipped with cooling systems. At that, the sulfur condensation unit is equipped with a gas mixture supply line containing sulfur vapors and is connected to the liquid sulfur discharge line by the liquid sulfur supply line, and with cleaned gas washing unit—cleaned gas supply line and sulfur balance suspension supply line. Besides, the cleaned gas washing unit is connected by the supply line of the contacting liquid to the sulfur suspension outlet line from the washing system cooling system and is equipped with a discharge line of the desulphurised off-gas and a sulfur suspension outlet line, which is divided into a supply line of the contacting liquid and a balance suspension of sulfur.EFFECT: technical result consists in simplification of device and reduction of environmental pollution.1 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 728 548 C2 (51) МПК C01B 17/05 (2006.01) B01D 53/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ На основании пункта 1 статьи 1366 части четвертой Гражданского кодекса Российской Федерации патентообладатель обязуется заключить договор об отчуждении патента на условиях, соответствующих установившейся практике, с любым гражданином Российской Федерации или российским юридическим лицом, кто первым изъявил такое желание и уведомил об этом патентообладателя и федеральный орган исполнительной власти по интеллектуальной собственности. (52) СПК (21)(22) Заявка: 2016142559, 28.10.2016 (24) Дата начала отсчета срока действия патента: (73) Патентообладатель(и): Курочкин Андрей Владиславович (RU) Дата регистрации: 30.07.2020 Приоритет(ы): (22) Дата подачи заявки: 28.10.2016 (43) Дата публикации ...

Continuous process for mass transfer of a liquid reagent with two different gases

A method and apparatus for removing H 2 S from a process gas, including a reaction chamber between an absorption chamber and an oxidizer chamber, in the polyvalent metal redox catalyzed removal of H 2 S from a process gas. The process and apparatus of the present invention inclues a first gas-liquid mass transfer zone or absorber chamber for intimately containing an H 2 S-containing process gas with an oxidized polyvalent metal redox solution for absorption of the H 2 S; and a reaction chamber in fluid communication with polyvalent metal redox solution exiting the absorption chamber through a valve-controlled cross-flow conduit. Cross flow of solution from the absorber chamber through a valve or other circulation control device to the reaction chamber provides controlled, continuous and sequential gas-liquid contact with two or more different gases in separate absorption, reaction and oxygenation zones within a single or multiple vessels.

Method for removing sulfide from aqueous solution

FIELD: chemistry.SUBSTANCE: group of inventions can be used to remove sulphides from aqueous solutions, including those from wash waters formed during the purification of natural gas. To carry out the process, an aqueous solution containing sulphides is subjected to sulfide oxidizing bacteria in the presence of oxygen in a bioreactor to oxidize the sulfide to elemental sulfur. Gas containing oxygen is fed through pipes (5) to reactor (1) with aqueous medium (2) such that one or more aerated zones (A) with an upward flow of fluid (8) and one or more non-aerated zones (B) with a downward flow of liquid (8) that are not separated from each other by the internal structures of the reactor are generated. Reactor (1) comprises a reaction zone with aqueous medium (2) without separating walls, gas supplying device containing oxygen (5) located near bottom (4) of reactor (1), device for injecting (6) aqueous solution containing sulphide into aqueous medium (2) in zone (B) which does not contain gas supplying device (5).EFFECT: simplified technology of oxidation of sulphides in an aqueous solution while reducing the formation of undesirable by-products of the reaction and increased amount of sulfur that is being recovered.16 cl, 2 dwg, 3 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 664 918 C2 (51) МПК C02F 3/30 (2006.01) C02F 3/34 (2006.01) C01B 17/04 (2006.01) C02F 101/10 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (52) СПК C02F 3/301 (2006.01); C02F 3/345 (2006.01); C01B 17/04 (2006.01); Y02W 10/23 (2006.01); C02F 2101/101 (2006.01) (21)(22) Заявка: 2016116027, 26.09.2014 26.09.2014 Дата регистрации: 23.08.2018 (56) Список документов, цитированных в отчете о поиске: RU 2109692 С1, 27.04.1998. RU 26.09.2013 EP 13186184.1 (43) Дата публикации заявки: 31.10.2017 Бюл. № 31 (45) Опубликовано: 23.08.2018 Бюл. № 24 (86) Заявка PCT: NL 2014/050660 (26.09.2014) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: ...

Method and device for processing hydrogen sulphide-contg. gas, comprising a cooling step for crystallised sulphur removal

描述了一种处理含硫化氢和二氧化硫气体的方法和装置，其中在至少一个气—液反应器—接触器(2)中，于适当的温度下，将这种气体与含一种催化剂的有机溶剂(1)相接触和回收基本上不再含有硫化氢和二氧化硫的气体(20)。更具体地说，从反应器—接触器取出溶剂和硫的单相溶液(4)，将其在至少一个冷却区(8)中部份冷却以得到硫晶体在溶剂中的悬浮液，在分离区(10)中从溶剂分离出结晶硫，并且一方面回收贫硫溶剂(14，15)，至少一部份循环(1)入反应器—接触器(2)和另一方面回收(13)硫。 应用于净化克劳斯装置(unite Claus)排出气。

Method of purifying gasses from sulphorous anhydride

Improved redox solution for gas desulphurisation

FIELD: chemistry. SUBSTANCE: invention relates to the chemical industry. A solution contains a chelating agent, representing a mixture of a disodium salt of ethylenediaminetetraacetic acid Na 2 H 2 EDTA and a tetrasodium salt of ethylenediaminetetraacetic acid Na 4 EDTA, a water-soluble salt of iron (III), a mixture of one or more water-soluble nitrite salt and phosphate compounds, and a solvent. The phosphate compounds are selected from the group, consisting of phosphate, polyphosphate, hydro- and dihydrophosphate salts and their mixtures. As the solvent water or alcohol mixed with water is used. The molar ratio of nitrites to the formed chelate iron constitutes from 0.001 to 2.0. EFFECT: invention makes it possible to increase the size of particles of the formed sulphur and the efficiency of their separation with the simultaneous reduction of corrosion effects. 8 cl, 1 tbl, 7 ex РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 542 230 C2 (51) МПК B01D 53/14 (2006.01) B01D 53/48 (2006.01) C01B 17/05 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2009109350/05, 16.03.2009 (24) Дата начала отсчета срока действия патента: 16.03.2009 Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): Массих Хоссейни ЙЕНАБ (IR), Йябер НЕСАТИ (IR), Калед ФОРСАТ (IR) 17.03.2008 EP 08152857.2 (43) Дата публикации заявки: 27.09.2010 Бюл. № 27 R U (73) Патентообладатель(и): РИСёЧ ИНСТИТЬЮТ ОФ ПЕТРОЛЕУМ ИНДАСТРИ (РИПИ) (IR) (45) Опубликовано: 20.02.2015 Бюл. № 5 2 5 4 2 2 3 0 R U Адрес для переписки: 105082, Москва, Спартаковский пер., д. 2, стр. 1, секция 1, этаж 3, "Евромаркпат" (54) УСОВЕРШЕНСТВОВАННЫЙ ОКИСЛИТЕЛЬНО-ВОССТАНОВИТЕЛЬНЫЙ РАСТВОР ДЛЯ ОБЕССЕРИВАНИЯ ГАЗА (57) Реферат: Изобретение относится к химической соединения выбраны из группы, состоящей из промышленности. Раствор содержит фосфата, полифосфата, гидрои хелатообразователь, представляющий собой дигидрофосфатных солей и их смесей. В качестве смесь двунатриевой ...

Gas desulfurization process

FIELD: gas treatment. SUBSTANCE: removal of H 2 S from gas stream is accomplished by separating H 2 S from gas phase in stage wherein treatment is carried out in scrubber with aqueous solution. Hydrogen sulfide contained in aqueous solution is subjected to biological oxidation in bioreactor to produce elementary sulfur, which is separated from aqueous solution. Gas stream, before and during scrubber treatment stage, is cooled to temperature below 75 о С to condense water vapor from gas stream and sending at least part of condensed water into bioreactor to fill up deviated stream and removal of salts. EFFECT: reduced power consumption and avoided necessity of feeding outside water into bioreactor. 12 cl, 1 tbl, 3 ex

System and process for gas sweetening

본 발명은, 황화수소를 포함하는 산성 가스 스트림으로부터 황화수소를 제거하는 방법으로서, 변환기 내에서 상기 산성 가스 스트림을 수계 촉매 용액과 접촉시킴으로써 황화수소를 산화시키고, 그 결과 탈황된 가스 스트림과, 환원된 촉매 및 원소 상태의 황을 포함하는 액체 스트림을 제조하는 단계; 산화제와, 상기 환원된 촉매 및 원소 상태의 황을 포함하는 액체 스트림을 고전단 장치에 도입하여, 분산되어 있는 상기 산화제 가스의 평균 기포 직경이 약 5㎛ 미만인 분산물을 제조하는 단계; 상기 분산물을 용기 내에 도입하고, 상기 용기로부터 황 함유 슬러리를 제거하고, 재생되는 촉매 스트림을 제거하는 단계, 여기서 상기 황 함유 슬러리는 원소 상태의 황 및 수계 액체를 포함함; 및 상기 재생된 촉매 스트림의 적어도 일부를 상기 변환기로 재순환시키는 단계를 포함하는 황화수소의 제거 방법에 관한 것이다. 또한, 상기 방법을 수행하기 위한 장치의 시스템이 제공된다. The present invention provides a method for removing hydrogen sulfide from an acid gas stream comprising hydrogen sulfide, the method comprising contacting the acid gas stream with an aqueous catalyst solution in a converter to oxidize hydrogen sulfide, resulting in a desulfurized gas stream, a reduced catalyst and Preparing a liquid stream comprising elemental sulfur; Introducing a liquid stream comprising an oxidant and the reduced catalyst and elemental sulfur into a high shear device to produce a dispersion having an average bubble diameter of the dispersed oxidant gas of less than about 5 μm; Introducing the dispersion into a vessel, removing a sulfur containing slurry from the vessel, and removing a regenerated catalyst stream, wherein the sulfur containing slurry comprises elemental sulfur and an aqueous liquid; And recycling at least a portion of the regenerated catalyst stream to the converter. Also provided is a system of apparatus for performing the method.

APPLICATION OF OXYGEN IN INSTALLATIONS OF THE CLAUS WITH ADDITIONAL LOAD, IN PARTICULAR WITH THE EXHAUST GAS FLOW CONTAINING CO2 FORMED WHEN THE ADSORBENT IS REGENERATED

1. Способ удаления серы из текучей среды, включающий следующие стадии:- обеспечение первой текучей среды (21), содержащей серосодержащие соединения;- адсорбция (12) серы из указанного серосодержащего соединения на адсорбенте (26), в частности в присутствии водорода (22);- регенерация (13) указанного адсорбента (25) окислением указанной адсорбированной серы до диоксида серы, в результате чего образуется поток отходящего газа (27), содержащий диоксид серы;- обеспечение второй текучей среды (31), содержащей сероводород;- использование указанной второй текучей среды (31) и указанного потока отходящего газа (27) в качестве реагентов в процессе Клауса (14) для производства элементарной серы (34);- в котором часть сероводорода, обеспечиваемого указанной второй текучей средой (31), окисляется до диоксида серы и воды при температуре реакции;- в котором остальной сероводород, полученный оксид серы и указанный оксид серы, обеспечиваемый указанным потоком отходящего газа (27), конвертируются в элементарную серу (34);- в котором кислород, необходимый для указанного окисления указанного сероводорода, обеспечиваемого указанной второй текучей средой (31), обеспечивается потоком воздуха (32), и- в котором указанный поток отходящего газа (27) разбавляет указанную вторую текучую среду (31) в указанном процессе Клауса (14),отличающийся тем, чтоуказанный процесс Клауса обогащают кислородом (33) для поддержания указанной температуры реакции, равной или превышающей 1100°С, предпочтительно превышающей 1200°С, предпочтительно превышающей 1250°С, предпочтительно превышающей 1300°С, предпочтительно превышающей 1400°С.2. Способ по п. 1, отличающийся тем, что указанный поток воз РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (51) МПК B01D 53/48 (13) 2014 111 794 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2014111794/05, 27.03.2014 (71) Заявитель(и): ЛИНДЕ АКЦИЕНГЕЗЕЛЛЬШАФТ (DE) Приоритет(ы): (30) Конвенционный приоритет: (72) Автор(ы): ШРАЙНЕР ...

Method for desulphurization of gases

本发明涉及一种从气流中除去硫化氢的方法,其中通过水溶液将硫化氢从气相中洗涤出来,将水溶液中的硫化氢在一生物反应器中进行生物氧化以制得元素硫,且将该元素硫从水溶液中分离出来,其特征在于,将被处理的气流冷却的程度是使得至少有足够的水蒸气从所述气流中冷凝出来以补偿用于除去盐目的的排放液流。这意味着,不需要供应水至该生物反应器中。这个方法是特别适合于含有硫化氢的气流,该硫化氢是通过硫化合物的催化转化而得到的。

Absorption of low concentration SO2Bifunctional absorbent for catalyzing Claus reaction and preparation thereof

本发明涉及一种高效吸收低浓度SO 2 和催化液相克劳斯反应的双功能吸收剂及其制备方法。本发明双功能吸收剂，以重量百分比计，包括下列组分：5％～60％的含‑COO ‑ 官能团的化合物；30％～80％的水；0.1％～15％的抗氧化剂；0.1％～1％的消泡剂。本发明主要解决以往技术中存在的吸收剂脱硫效率低、稳定性差、液相克劳斯反应催化活性低的问题。可用于烟气脱硫和硫磺的工业生产中。

METHOD FOR REMOVING SULFUR SUITABLE FOR PROCESSING GAS FLOWS UNDER HIGH PRESSURE

ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß (19) RU (11) 2007 116 947 (13) A (51) ÌÏÊ C01B 17/04 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÇÀßÂÊÀ ÍÀ ÈÇÎÁÐÅÒÅÍÈÅ (21), (22) Çà âêà: 2007116947/15, 28.09.2005 (71) Çà âèòåëü(è): ÄÇÅ ÐÈÄÆÅÍÒÑ ÎÔ ÄÇÅ ÞÍÈÂÅÐÑÈÒÈ ÎÔ ÊÀËÈÔÎÐÍÈß (US) (30) Êîíâåíöèîííûé ïðèîðèòåò: 07.10.2004 US 10/961,354 (43) Äàòà ïóáëèêàöèè çà âêè: 20.11.2008 Áþë. ¹ 32 (72) Àâòîð(û): ËÈÍÍ Ñêîòò (US) (87) Ïóáëèêàöè PCT: WO 2006/041684 (20.04.2006) R U (54) ÑÏÎÑÎÁ ÓÄÀËÅÍÈß ÑÅÐÛ, ÏÐÈÃÎÄÍÛÉ ÄËß ÎÁÐÀÁÎÒÊÈ ÏÎÒÎÊΠÃÀÇΠÏÎÄ ÂÛÑÎÊÈÌ ÄÀÂËÅÍÈÅÌ (57) Ôîðìóëà èçîáðåòåíè 1. Ñïîñîá óäàëåíè H2S èç ñîäåðæàùåãî åãî ãàçà, âêëþ÷àþùèé (à) âçàèìîäåéñòâèå ïîòîêà H2S-ñîäåðæàùåãî ãàçà ñ ñòåõèîìåòðè÷åñêèì èçáûòêîì SO2 â ðåàêòîðå ñ ïîëó÷åíèåì SO2-ñîäåðæàùåãî ãàçà, ïðàêòè÷åñêè íå ñîäåðæàùåãî H2S, è æèäêîé ñåðû, ïðè÷åì ðåàêöèþ îñóùåñòâë þò â îðãàíè÷åñêîì æèäêîì ðàñòâîðèòåëå, ñîäåðæàùåì ãîìîãåííûé êàòàëèçàòîð, óñêîð þùèé ðåàêöèþ 2H2S + SO2 → 3S + 2H2O, ïðè òåìïåðàòóðå â ðåàêòîðå, ïðåâûøàþùåé òåìïåðàòóðó ïëàâëåíè ñåðû; (b) îòâåäåíèå æèäêîé ñåðû èç ðåàêòîðà; (c) îòâåäåíèå SO2-ñîäåðæàùåãî ãàçà ñòàäèè (à) èç ðåàêòîðà; (d) óäàëåíèå SO2 èç ãàçà ñòàäèè (c) ñ ïîëó÷åíèåì ãàçà, ïðàêòè÷åñêè íå ñîäåðæàùåãî H2S è SO2; (e) ðåöèðêóë öèþ óäàëåííîãî íà ñòàäèè (d) SO2 íà ñòàäèþ (à). 2. Ñïîñîá ïî ï.1, â êîòîðîì ïîòîê H2S-ñîäåðæàùåãî ãàçà íàõîäèòñ ïîä äàâëåíèåì îò ïðèáëèçèòåëüíî 10 äî ïðèáëèçèòåëüíî 100 áàð àáñ. 3. Ñïîñîá ïî ï.1, â êîòîðîì ðàáî÷åå äàâëåíèå â ðåàêòîðå ñîñòàâë åò îò ïðèáëèçèòåëüíî 10 äî ïðèáëèçèòåëüíî 100 áàð àáñ. 4. Ñïîñîá ïî ï.1, â êîòîðîì ðàáî÷à òåìïåðàòóðà â ðåàêòîðå ñîñòàâë åò îò ïðèáëèçèòåëüíî 125 äî ïðèáëèçèòåëüíî 140°Ñ. 5. Ñïîñîá ïî ï.1, â êîòîðîì H2S-ñîäåðæàùèé ãàç ïîäàþò â ðåàêòîð áåç ïðåäâàðèòåëüíîãî ïðîïóñêàíè ÷åðåç êàêóþ-ëèáî óñòàíîâêó ñ öåëüþ ïîâûøåíè â íåì êîíöåíòðàöèè H2S. Ñòðàíèöà: 1 RU A 2 0 0 7 1 1 6 9 4 7 A Àäðåñ äë ïåðåïèñêè: 129010, Ìîñêâà, óë. Á.Ñïàññêà , 25, ñòð.3, ÎÎÎ "Þðèäè÷åñêà ôèðìà Ãîðîäèññêèé è Ïàðòíåðû", ïàò.ïîâ. À.Â.Ìèö 2 0 0 7 ...

Process for the removal of H2 S and CO2 from gaseous streams

A cyclic process for the simultaneous removal of hydrogen sulfide and carbon dioxide from a variety of gas streams is disclosed. The gas stream containing the sour gases is contacted with a solution of the Fe (III) chelate of N-(2-hydroxyethyl) ethylene diamine triacetic acid in a CO 2 selective solvent. The hydrogen sulfide is converted to sulfur, the CO 2 is absorbed to produce a purified gas stream, and the Fe (III) chelate is converted to the Fe (II) chelate. The process includes sulfur removal and simultaneous regeneration of the solvent and the Fe (III) chelate.

Sulfur recovery

내용 없음

Installation, method and catalyst for the purification of gaseous hydrocarbon feed from hydrogen sulfide and mercaptans

А 2016116049 ко РОССИЙСКАЯ ФЕДЕРАЦИЯ 19 11) = (19) РЦ (11) < (51) МПК ВОО 53/48 (2006.01) ВОО 53/52 (2006.01) ВОО 53/86 (2006.01) ие В01Л27/122 (2006.01) ‹ / В01731/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2016116049, 25.04.2016 (71) Заявитель(и): Общество с ограниченной ответственностью Приоритет(ы): "Старт-Катализатор" (КО) (22) Дата подачи заявки: 25.04.2016 , (72) Автор(ы): (43) Дата публикации заявки: 30.10.2017 Бюл. № 31 Тюрин Александр Иванович (ВП). Адрес для переписки: Тарханова Ирина Геннадиевна (КО), 125368, Москва, а/я 84, Щитову А.А. Тюрин Алексей Александрович (КО), Тюрина Людмила Александровна (КП) (54) Установка, способ и катализатор очистки газообразного углеводородного сырья от сероводорода и меркаптанов (57) Формула изобретения 1. Установка очистки газообразного углеводородного сырья от сероводорода и/или меркаптанов, содержит каталитический реактор, заполненный раствором катализатора окисления сероводорода и меркаптанов, в серу и дисульфиды соответственно, в органическом растворителе, устройство вывода раствора серы из реактора в блок сепарации серы, и блок сепарации серы, при этом установка содержит, по крайней мере, средства подачи в реактор очищаемого газообразного углеводородного сырья и кислородсодержащего газа, средство вывода из реактора очищенного газа, а блок сепарации серы, содержит средство выделения серы, причем конструкция установки и состав катализатора обеспечивают конверсию, по меньшей мере, 99,99% сероводорода и меркаптанов в серу и дисульфиды, а катализатор представляет собой смешанно- лигандные комплексы переходных металлов. 2. Установка по п. 1, отличающаяся тем, что средства подачи газообразного углеводородного сырья и кислородсодержащего газа дополнительно снабжены устройством гомогенизации смеси очищаемого углеводородного газа с кислородсодержащим газом. 3. Установка по п. 1, отличающаяся тем, что реактор содержит средство для распределения подводимого ...

METHOD FOR PRODUCING ELEMENTARY SULFUR

РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2019 143 422 A (51) МПК C01B 17/05 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2019143422, 30.05.2018 (71) Заявитель(и): ПАКЕЛЛ Б.В. (NL) Приоритет(ы): (30) Конвенционный приоритет: 01.06.2017 EP 17173887.5 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 09.01.2020 R U (43) Дата публикации заявки: 09.07.2021 Бюл. № 19 (72) Автор(ы): КЛОК, Йоханнес Бернардус Мария (NL), ХЕЙНЕ, Аннемик Тер. (NL), ДЕ РИНК, Фредерикус (NL), БЕЙСМАН, Сес Ян Нико (NL) (86) Заявка PCT: (87) Публикация заявки PCT: WO 2018/219990 (06.12.2018) A Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, стр. 3, ООО "Юридическая фирма Городисский и Партнеры" R U (57) Формула изобретения 1. Способ получения элементарной серы, в котором (i) осуществляют взаимодействие водного раствора, содержащего бисульфид, с окисленными сульфид-окисляющими бактериями в анаэробных условиях, в которых получают элементарную серу и восстановленные сульфид-окисляющие бактерии, и (ii) в котором восстановленные сульфид-окисляющие бактерии окисляют путем переноса электронов к аноду электрохимической ячейки с получением окисленных сульфид-окисляющих бактерий. 2. Способ по п. 1, в котором данная электрохимическая ячейка содержит катод, который переносит электроны к соединению, имеющему более положительный электродный потенциал, чем электродный потенциал восстановленных сульфидокисляющих бактерий, и в котором в результате этой разницы в потенциале между анодом и катодом протекает электрический ток между упомянутыми электродами. 3. Способ по п. 2, в котором соединение, имеющее более положительный электродный потенциал, чем электродный потенциал восстановленных сульфид-окисляющих бактерий, является кислородом или нитратом. 4. Способ по п. 1, в котором данная электрохимическая ячейка содержит катод, который переносит электроны к соединению, имеющему более отрицательный электродный потенциал, чем электродный ...

System and process for gas sweetening

본 발명은, 황화수소를 포함하는 산성 가스 스트림으로부터 황화수소를 제거하는 방법으로서, 변환기 내에서 상기 산성 가스 스트림을 수계 촉매 용액과 접촉시킴으로써 황화수소를 산화시키고, 그 결과 탈황된 가스 스트림과, 환원된 촉매 및 원소 상태의 황을 포함하는 액체 스트림을 제조하는 단계; 산화제와, 상기 환원된 촉매 및 원소 상태의 황을 포함하는 액체 스트림을 고전단 장치에 도입하여, 분산되어 있는 상기 산화제 가스의 평균 기포 직경이 약 5㎛ 미만인 분산물을 제조하는 단계; 상기 분산물을 용기 내에 도입하고, 상기 용기로부터 황 함유 슬러리를 제거하고, 재생되는 촉매 스트림을 제거하는 단계, 여기서 상기 황 함유 슬러리는 원소 상태의 황 및 수계 액체를 포함함; 및 상기 재생된 촉매 스트림의 적어도 일부를 상기 변환기로 재순환시키는 단계를 포함하는 황화수소의 제거 방법에 관한 것이다. 또한, 상기 방법을 수행하기 위한 장치의 시스템이 제공된다. 황화수소, 탈황, 산성 가스 스트림, 변환기, 고전단 장치, 전단 속도, 가스 스위트닝

Patent JPS5615297B2

Patent RU2019143422A3

ВИ“? 2019143422” АЗ Дата публикации: 16.09.2021 Форма № 18 ИЗПМ-2011 Федеральная служба по интеллектуальной собственности Федеральное государственное бюджетное учреждение ж 5 «Федеральный институт промышленной собственности» (ФИПС) ОТЧЕТ О ПОИСКЕ 1. . ИДЕНТИФИКАЦИЯ ЗАЯВКИ Регистрационный номер Дата подачи 2019143422/05(084217) 30.05.2018 РСТ/ЕР2018/064150 30.05.2018 Приоритет установлен по дате: [ ] подачи заявки [ ] поступления дополнительных материалов от к ранее поданной заявке № [ ] приоритета по первоначальной заявке № из которой данная заявка выделена [ ] подачи первоначальной заявки № из которой данная заявка выделена [ ] подачи ранее поданной заявки № [Х] подачи первой(ых) заявки(ок) в государстве-участнике Парижской конвенции (31) Номер первой(ых) заявки(ок) (32) Дата подачи первой(ых) заявки(ок) (33) Код страны 1. 17173887.5 01.06.2017 ЕР Название изобретения (полезной модели): [Х] - как заявлено; [ ] - уточненное (см. Примечания) СПОСОБ ПОЛУЧЕНИЯ ЭЛЕМЕНТАРНОЙ СЕРЫ Заявитель: ПАКЕЛЛ Б.В., МГ. 2. ЕДИНСТВО ИЗОБРЕТЕНИЯ [Х] соблюдено [ ] не соблюдено. Пояснения: см. Примечания 3. ФОРМУЛА ИЗОБРЕТЕНИЯ: [Х] приняты во внимание все пункты (см. Примечания) [ ] приняты во внимание следующие пункты: [ ] принята во внимание измененная формула изобретения (см. Примечания) 4. КЛАССИФИКАЦИЯ ОБЪЕКТА ИЗОБРЕТЕНИЯ (ПОЛЕЗНОЙ МОДЕЛИ) (Указываются индексы МПК и индикатор текущей версии) СО1В 17/05 (2006.01) СО2Е 3/34 (2006.01) ВОТЬ 53/52 (2006.01) ВОТЬ 53/84 (2006.01) 5. ОБЛАСТЬ ПОИСКА 5.1 Проверенный минимум документации РСТ (указывается индексами МПК) СО1ТВ 17/00, 17/02, 17/04, 177/05, 17/06, ВОТЬ 53/00, 53/34, 53/46, 53/52, 53/74, 53/84, 53/96, С02Е 3/00, 3/34, С12Р 3/00, С25В 1/00 5.2 Другая проверенная документация в той мере, в какой она включена в поисковые подборки: 5.3 Электронные базы данных, использованные при поиске (название базы, и если, возможно, поисковые термины): РУ\У/РТ, Ебрасепес, Раеагсь, КОРТО, ИЗРТО 6. ДОКУМЕНТЫ, ОТНОСЯЩИЕСЯ К ПРЕДМЕТУ ПОИСКА Кате- ...

Method for desulfuration of gases containing sulfur dioxide

Способ изобретения обеспечивает превращение диоксида серы в сероводород. Во-первых, диоксид серы поглощается водным раствором сульфида с образованием ионов сульфита и бисульфита. Во-вторых, добавочный диоксид серы поглощается водным раствором с образованием сероводорода. В-третьих, другая часть диоксида серы поглощается и реагирует с водным раствором с образованием бисульфита. Наиболее предпочтительно бисульфит разлагается на диоксид серы и сульфит, сульфит затем восстанавливается в сульфид и возвращается на стадию абсорбции. Сероводород может затем реагировать с диоксидом серы по реакции Клауса с образованием элементарной серы.

Fuel gas desulfurization

(57)【要約】本公報は電子出願前の出願データであるた め要約のデータは記録されません。

Patent FR2161188A6

Ryusano fukumu haisuino jokahoho

Method for producing hydrogen by using biogas biomass

本发明公开一种沼气类生物质制氢方法，包括预净化、浓缩、制氢、提氢四大工序。沼气经过预净化脱硫后加压进入变压吸附浓缩单元，甲烷被浓缩；加压预热后再通过精脱硫塔进一步脱硫；精脱硫后的中间气与工艺蒸汽进一步预热后进入转化炉，甲烷与水蒸汽反应生成CO、CO2和H2。转化气余热可副产蒸汽外输。经过多级热量回收，中温变换将CO变换为CO2，以获得更多的氢气，提高氢的收率。变换后的气体经过多级热量回收冷却后进入变压吸附提氢工序得到纯氢，同时可副产蒸汽、硫磺等产品。本发明的浓缩工序对甲烷进行浓缩，其甲烷的单程收率可达95%以上，剩余有效组分通过尾气的回收利用为装置提供热能，这样甲烷的总利用率几乎接近100%，达到全回收。

Absorbent, process for producing an absorbent, and process and device for separating off hydrogen sulphide from an acidic gas

The invention relates to an absorbent which comprises a dissolved amino acid salt and a dissolved metal. The absorbent is brought into contact with the acidic gas in an absorber. In the absorber, the H2S converts from the gas phase to the liquid phase. In addition, carbon dioxide (CO2) is likewise absorbed from the gas as a function of the contact time. The washing solution is passed from the absorber to a regeneration tank. In the regeneration tank, the solution is gassed with air, oxygen (O2)-enriched air or with pure O2. By introducing O2 into the solution, the H2S already present in the solution is reacted over the dissolved metal catalyst. After the regeneration, possible solids are separated off and the regenerated washing solution is returned to the absorber.

A kind of cold burnt foul waste gas processing complete set of equipments of coking plant

本实用新型提供了一种焦化装置冷焦恶臭废气处理成套设备，与高压水泵相连的水冲真空泵，作为动力装置，为焦化恶臭废气提供运输；与水冲真空泵连接的分液罐，用于分离气液两相；碱液罐连接水泵，将碱液送至为气液吸收反应提供场所的废气处理装置；在废气处理装置内设有旋流喷射吸附器；所述废气处理装置设有进液管，进气管，出气管和出液管，与内设的旋流喷射吸附器连接；与风机相连的加热炉，用于燃烧净化残余可燃废气。该方法利用原有冷焦水泵的富裕能量作为冷焦恶臭废气的动力来源，并将处理后无臭气体通入加热炉作为燃烧气源。不产生二次污染，无需额外增加装置能耗，方法流程简单，适用于多种焦化装置冷焦恶臭废气处理系统。

Process for the treatment of hydrogen sulfide gas streams

In gas/liquid contact processes for the absorption of sulfur gas streams using alkaline, oxygen regenerated washing solutions, for example as in the Stretford process, the washing solution is treated with a soluble aldehyde to control the rate of formation of thiosulfate salts in the solution. The thiosulfate is thus oxidized to sulfate which is subsequently recovered without any substantial loss of washing solution.

Method for quickly separating calcium and sulfur of industrial byproduct gypsum

本专利公开了一种工业副产石膏钙硫快速分离的方法，将工业副产石膏快速分解，得到二氧化硫烟气和固体产物；对固体产物进行分选，得到气氛调节剂、氧化钙和硫化钙；硫化钙水解得到氢氧化钙沉淀和硫氢化钙溶液；在硫氢化钙溶液中通入二氧化碳气体，得到碳酸钙沉淀和硫化氢气体；对硫化氢气体进行吸收、浮选得到单质硫。同已有技术方案相比，本方法生产成本低，生产效率高，产品质量好的特点。

Process for producing purified synthesis gas

一种由原料合成气生产纯化合成气的方法，包括：(a)使原料合成气变换，以获得富含H 2 S和CO 2 的变换后合成气；(b)使变换后合成气与吸收液体接触，以获得半纯化合成气及富含H 2 S和CO 2 的吸收液体；(c)将富含H 2 S和CO 2 的吸收液体加热和降压，以获得富含CO 2 的闪蒸气和富含H 2 S的吸收液体；(d)汽提富含H 2 S的吸收液体，以获得再生的吸收液体和富含H 2 S的汽提气；(e)将汽提气中的H 2 S转化为元素硫；(f)使半纯化合成气与含水碱性洗涤液体接触，以获得贫含H 2 S的合成气和含硫化物的含水物流；(g)使含硫化物的含水物流与硫化物氧化细菌接触，以获得硫浆液和再生的含水碱性洗涤液体。

How to remove hydrogen sulfide from gas streams

Process for reducing the residual sulphur content of Claus exhaust gases

A process is described for reducing the residual sulphur content of Claus exhaust gases. In the process, the sulphur compounds are hydrogenated and/or are hydrolysed to give H2S and the H2S is removed by means of an oxidative scrubbing. It is proposed to use an aqueous, alkaline scrubbing agent which contains pentavalent vanadium as an oxidising agent, and a promoter. The promoter to be added is an organic nitrogen compound or an inorganic amine or the compounds forming from the substances during the scrubbing process.

Process for removing sulfur dioxide and sulfur trioxide from a gas containing these.

Method for removing sulfur compounds from gases

Sulfur reducing bacteria and their use in biological desulfurization processes

(57)【要約】 KT7と表記される新規硫黄還元細菌を記載する。これは、サルファイト及び/又はサルフェートをスルフィドに還元することができ、35〜85℃の温度、5〜9の間のpH、0〜40mS/cmの伝導度で増殖し得るDesulfotomaculum属と近縁の低GCグラム陽性細菌である硫黄還元細菌である。これは、水から硫黄化合物を除去する方法であって、硫黄還元細菌を用い、電子供与体を添加する嫌気的処理で硫黄を含有する水を処理する方法に用いることができる。硫黄を含有する水は、煙道ガス脱硫黄ステップから得られた浄化液の廃液であり得る。

Oxidizer and oxidation process for a desulphurization process

An improved oxidizer for liquid reduction-oxidation desulphurization processes uses a hollow fiber membrane contactor. A pressurized, oxygen containing gas stream is introduced into the interior of the hollow fiber membrane while a liquid reduction-oxidation catalyst solution contacts the exterior of the membrane. Oxygen diffuses through the membrane into the liquid reduction-oxidation catalyst solution whereby the solution is oxidized and can be recycled for further us in a desulphurization process.

METHOD AND DEVICE FOR TREATING A GAS CONTAINING SULFUR HYDROGEN AND SULFUR ANHYDRIDE, COMPRISING A SULFUR REMOVAL STEP BY COOLING THE GAS EFFLUENT

On décrit un procédé et un dispositif de traitement d'un gaz contenant de l'hydrogène sulfuré et de l'anhydride sulfureux dans lequel on met en contact dans au moins un réacteur-contacteur (2) gaz-liquide à une température adéquate le gaz avec un solvant organique (1) contenant un catalyseur et on récupère un gaz (20) ne contenant sensiblement plus d'hydrogène sulfuré et d'anhydride sulfureux. Cet effluent contient du soufre vapeur. Il est refroidi par mélange avec un mélange solvant-eau (14) ou par du solvant refroidi par un échangeur thermique (40) dans une zone de refroidissement (7) de manière à obtenir une suspension de cristaux de soufre dans le solvant. On sépare le soufre cristallisé du solvant dans une zone de séparation (30) et on recycle le solvant refroidi (13). On obtient un effluent (17) exempt de soufre vapeur. A method and a device for treating a gas containing hydrogen sulphide and sulfur dioxide in which the gas is contacted in at least one gas-liquid reactor-contactor (2) at an adequate temperature is described. with an organic solvent (1) containing a catalyst and a gas (20) containing substantially no more hydrogen sulfide and sulfur dioxide is recovered. This effluent contains vapor sulfur. It is cooled by mixing with a solvent-water mixture (14) or by solvent cooled by a heat exchanger (40) in a cooling zone (7) so as to obtain a suspension of sulfur crystals in the solvent. The crystallized sulfur is separated from the solvent in a separation zone (30) and the cooled solvent (13) is recycled. An effluent (17) free from vapor sulfur is obtained.

Method for recovering sulfur component in sulfur recovery process

Patent FR2532190B1

Patent FR2358186B2

Patent FR2123778A5

Method for removal of sulfur dioxide from gases

IMPROVED METHOD FOR REMOVAL OF SULFUR DIOXIDE FROM GASES Abstract of the Disclosure The invention is an improved method for regenerating absorbents which have absorbed sulfur dioxide from gas streams. The method comprises intimately intermixing hydrogen sulfide with the sulfur dioxide rich absorbent and conveying the mixture under turbulent flow conditions for a sufficient length of time to react a substantial portion of the sulfur dioxide to sub-stantially regenerate the absorbent.

Stretford process for sulphur removal from gases - using alkali metal sulphide soln. as make-up alkali

In the removal of sulphide-type impurities from gases by the Stretford process, an aq. alkali metal sulphide soln. is used as a source of make-up alkali. Sulphide solns. obtd., as industrial by-prods., e.g. from gas scrubbing, can be used to replace relatively expensive NaOH and Na2CO3. The process is pref. carried out by (a) passing the gas to be treated through an absorption unit contg. an alkaline soln. of Na anthraquinone-disulphonate and Na tungstate; (b) oxidising the resulting soln. with air in a reaction unit to convert NaHS into S; (c) sepg. the S; and (d) re-adjusting the pH of the soln. by adding make-up alkali in the form of an aq. Na2S soln. as it is recycled to the absorption unit. The make-up soln. is pref. a residual Na2S soln. obtd. from the desulphurisation of H2S-contg. gases (esp. propane) by contact with aq. NaOH.

Patent FR2187680B1

IMPROVED PROCESS FOR TREATING GAS CONTAINING HYDROGEN SULFIDE AND SULFUR DIOXIDE

Patent FR2142715B1

Removing sulphur dioxide - from gases by use of ammonia or ammonium sulphite solns

Industrial gas purificn - by absorbing sulphur dioxide in strong base soln, contacting with ammonium salt, and contacting relea

Industrial gas contg. SO2 is purified with S prodn. by (a) contacting the gas with an absorbing soln. of a strong base, pref. soda or potash, to form an aq. sulphite soln., (b) contacting the alkali metal sulphite soln. with pref. 0.5-5 mol/l aq. soln. of an ammonium salt pref. chloride of a storng mineral acid, or an org. acid with a low volatility, at a temp. such that SO2 and NH3 are released, and an aq. soln. of the salt of the acid and the base is obtd., (c) contacting the SO2 and NH3 with a gas contg. H2S to recover S, and liberate, in the gaseous state, NH3 and water, (d) contacting the aq. salt soln. from (b) with an anionic ion exchange resin to regenerate the base, and load the resin with acid, (e) recycling the base to (a) (f) periodically interrupting (d) and treating the resin with an aq. ammonia soln. from (c) in order to regenerate the resin, and (g) recycling to (b) the prod. obtd. from the regeneration of the resin, which consists of an aq. soln. of ammonium salt of the acid.

Hydrogen sulphide removal from gases - by reaction with sulphur dioxide in a solvent for sulphur

Removal of H2S from gases is effected by reacting the H2S with SO2 in a solvent for sulphur, and sepg. the purified gas from the S soln. The S is then sepd. from the solvent, which is recycled. The solvent is pref. a phenol, esp. m-cresol. The process is pref. carried out by absorbing the H2S (or SO2) in the solvent at 15-80 degrees C and 1-150 (esp. 5-80) bars, and then contacting the soln. with SO2 (or the gas) at 80-180 degrees C (esp. 112-150 degrees C) and 1-150 (esp. 5-80) bars. The process is esp. useful for purifying natural gas and refinery off-gases (e.g. from desulphurisation or catalytic cricking units). The process gives purified gases contg. 0.1% H2S. The S isolated is not contaminated with carbon when the feed gas contains hydrocarbons (cf. the Claus process).

Patent FR2202714B1

PROCESS FOR DEPURING GAS CONTAINING SULFUR DIOXIDE

METHOD FOR REDUCING SULFUR EMISSIONS FROM A SULFUR INSTALLATION

La présente invention fournit un procédé de réduction des émissions de soufre d'une installation de soufre, dans lequel l'installation de soufre comprend une unité de réaction thermique, une unité de réaction catalytique et une unité de purification de gaz de queue, le procédé étant caractérisé en ce que le gaz perdu issu du dégazage du soufre liquide dans la cuve à soufre liquide est introduit dans l'unité de réaction catalytique, et/ou le gaz perdu issu du dégazage du soufre liquide dans la cuve à soufre liquide est introduit dans l'unité de purification de gaz de queue. Dans la présente invention, le H S dans le gaz de queue purifié peut être réduit à pas plus de 10 ppm (v) et la concentration des émissions de SO de l'installation de soufre peut être réduite à pas plus de 100 mg/m .

PROCESS AND DEVICE FOR TREATING A GAS CONTAINING SULFUR HYDROGEN, INCLUDING A STAGE OF REGENERATION OF THE CATALYTIC SOLUTION BY MEANS OF AN EJECTOR

PROCESS AND PLANT FOR PURIFYING GASEOUS EFFLUENTS CONTAINING HYDROGEN SULFIDE

Procédé et installation d'épuration d'effluents gazeux contenant de l'hydrogène sulfuré (H2 S). Il consiste à mettre en contact intime ledit effluent gazeux avec une solution aqueuse d'un agent favorisant la réaction d'oxydation de l'H2 S, ainsi que d'alcoylmercaptans éventuellement également présents dans ledit effluent, à la température ambiante ou sensiblement telle et à la pression atmosphérique, pour oxyder l'H2 S et les alcoylmercaptans éventuellement présents, respectivement en soufre élémentaire solide et en disulfures. Process and installation for the purification of gaseous effluents containing hydrogen sulphide (H2 S). It consists in bringing said gaseous effluent into intimate contact with an aqueous solution of an agent promoting the oxidation reaction of H2 S, as well as alkyl mercaptans optionally also present in said effluent, at room temperature or substantially such and at atmospheric pressure, to oxidize H2 S and any alkylmercaptans present, respectively to solid elemental sulfur and to disulfides.

Removing sulphur oxides and opt. nitrogen oxides from gas mixt. - with soln. of ammonium sulphite, ammonia and opt. ammonium thiosulphate

Sulphur oxides are removed from gas mixt. by contact with an aq. scrubbing soln. contg. (NH4)2SO3 and/or NH4OH. At least a part of the scrubbing soln. is subsequently reacted with H2S is an aq. phase to obtain elemental sulphur; a smaller part of the aq. phase is returned to the scrubbing zone. The scrubbing soln. may additionally contain (NH4)2S2O3 to remove N oxides from the gas mixt. Combustion gases of power station (heated with coal or oil) or of oil residue (having high sulphur content) in refining plants, effluents from catalytic cracking plants or from fluid-cooking plants, etc., can be effectively purified. Elemental sulphur is obtd. as a by-product.

Patent FR2213793B2

PROCESS FOR THE REMOVAL AND RECOVERY OF SULFUR IN ELEMENTARY FORM FROM GASES CONTAINING SULFUR DIOXIDE OR SULFUR DIOXIDE AND SULFUR HYDROGEN

LE PROCEDE SELON L'INVENTION SE CARACTERISE EN CE QUE LE DIOXYDE DE SOUFRE OU LE DIOXYDE DE SOUFRE ET L'HYDROGENE SULFURE CONTENUS DANS LES GAZ, SONT ABSORBES DANS UNE SOLUTION DE LAVAGE PORTANT DU SULFURE DE TELLE SORTE QUE LE PH DE LA SOLUTION DE LAVAGE EST DANS LA GAMME DE 2,5 A 5 OU LE POTENTIEL D'OXYDO-REDUCTION EST DANS LA GAMME DE - 70 A -260 MV PAR RAPPORT A UNE ELECTRODE AU CALOMEL, LA SOLUTION D'EPURATION RESULTANTE EST DIRIGEE DANS UN AUTOCLAVE DANS LEQUEL LES COMPOSES CONTENUS DANS LA SOLUTION SONT TRAITES A UNE TEMPERATURE ELEVEE SI BIEN QUE LES PRODUITS ISSUS DU PROCEDE SONT DU SOUFRE ELEMENTAIRE A L'ETAT FONDU ET UNE SOLUTION DE SULFATE QUI EST REGENEREE EN SULFURE DE FACON CONNUE ET RENVOYEE DANS L'ETAPE D'ABSORPTION. THE PROCESS ACCORDING TO THE INVENTION CHARACTERIZED IN THAT THE SULFUR DIOXIDE OR THE SULFUR DIOXIDE AND THE HYDROGEN SULPHIDE CONTAINED IN THE GASES ARE ABSORBED IN A WASHING SOLUTION CONTAINING SULFIDE OF SUCH KIND AS THE PH OF THE SOLUTION OF WASHING IS IN THE RANGE OF 2.5 TO 5 OR THE OXIDO-REDUCTION POTENTIAL IS IN THE RANGE OF - 70 TO -260 MV COMPARED TO A CALOMEL ELECTRODE, THE RESULTING DEPURATION SOLUTION IS DIRECTED INTO AN AUTOCLAVE IN WHICH THE COMPOUNDS CONTAINED IN THE SOLUTION ARE TREATED AT A HIGH TEMPERATURE SO ALTHOUGH THE PRODUCTS FROM THE PROCESS ARE ELEMENTARY SULFUR IN THE MELT STATE AND A SULPHATE SOLUTION WHICH IS REGENERATED TO SULPHIDE IN A KNOWN WAY AND RETURNED TO STEP D 'ABSORPTION.

Removing hydrogen sulphide and mercaptans from gas effluents - by catalytic oxidn. avoiding formation of oxides of sulphur

The gas is contacted with an aq. soln. of pH 3-11 of polyvalent metal catalyst chelated with an aminoacid of formula (I) (a)3-n-N-(X)n or (II) (Y)N-R-N(Y)(Y) where n=1-3; X is an acetic acid or propionic acid residue; A is 2-hydroxy-(ethyl or propyl) or 1-4C alkyl; 2-4 of Y are as X and 0-2 of Y are 2-hydroxy-(ethyl or propyl) radicals or radicals -CH2CH2N(X)2; R is ethylene, propylene or isopropylene or a 1,2-phenylene or 1,2-cyclohexylene residue; the soln. also contg. an alkali, alkaline earth metal, ammonium or amine salt of an acid of pK 1.2-6 (III). The soln. is then contacted with a gas contg. free oxygen to regenerate the catalyst for recycling and sulphur and opt. dialkylsulphides are sepd. from the aq. soln. The process is used for treating waste gases from chemical and industrial processes. Without (III), below pH 7 the rate of reaction falls sharply and above pH 7 the reaction, although 100% results in 2-9% sulphur oxyacids being formed which have an adverse effect on the process. The presence of (III) results in rapid reaction together with inhibition of sulphur oxyacid formation i.e. the H2S oxidn. does not go beyond S formation.

Process for extracting ammonia and hydrogen sulphide from gases from the distillation of coal, etc., to obtain sulphate of ammonium and sulfur

PHOTOCATALYTIC PROCESS FOR PRODUCING HYDROGEN AND SULFUR FROM HYDROGEN SULFIDE

Oxidation of hydrogen sulphide - to produce elemental sulphur and subsequently sodium polysulphides

H2S, esp. from liquors used in pulp prodn. or acidic natural gases, is treated with an oxidising agent in aq. medium in the presence of a 'contact surface'. The latter holds the oxidising agent, pref. air, and the H2S initimate contact, so promoting reaction; pref. it is a finely divided porous material which is resistant to wetting or water repellent, esp. Co carbonaceous materials treated with a fluorinated polymer. The elemental S produced is suitable for conversion to sodium polysulphides.

WASTE WATER TREATMENT PROCESS CONTAINING AMMONIA SULPHATE

Improvements in the preparation of sulfur