SYSTEMS FOR CONVERTING FUEL

A system for converting fuel may include a first moving bed reactor, a second reactor, and a non-mechanical valve. The first moving bed reactor may include at least one tapered section and multiple injection gas ports. The multiple injection gas ports may be configured to deliver a fuel to the first moving bed reactor. The first moving bed reactor may be configured to reduce an oxygen carrying material with a fuel by defining a countercurrent flowpath for the fuel relative to the oxygen carrying material. The second reactor may communicate with the first moving bed reactor and may be operable to receive an oxygen source. The second reactor may be configured to regenerate the reduced oxygen carrying material by oxidation. 1. A system for converting fuel comprising:a first moving bed reactor comprising at least one tapered section and multiple injection gas ports, the multiple injection gas ports being configured to deliver a fuel to the first moving bed reactor, wherein the first moving bed reactor is configured to reduce an oxygen carrying material with a fuel by defining a countercurrent flowpath for the fuel relative to the oxygen carrying material;a second reactor communicating with the first moving bed reactor operable to receive an oxygen source, wherein the second reactor is configured to regenerate the reduced oxygen carrying material by oxidation; anda non-mechanical valve comprising a circuitous piping assembly disposed between the first moving bed reactor and the second reactor, and at least one gas opening configured to receive a gas stream, the gas stream being operable to reduce gas leakage between the first moving bed reactor and the second reactor.2. The system for converting fuel of claim 1 , wherein the second reactor is a countercurrent moving bed reactor.3. The system for converting fuel of claim 1 , wherein the circuitous piping assembly comprises at least one vertical standpipe.4. The system for converting fuel of claim 1 , wherein the injection ...

Fluidized bed system and method for operating fluidized bed furnace

A fluidized bed system includes a first nozzle group that is provided inside a fluidized bed furnace, a second nozzle group that is provided inside the fluidized bed furnace, a first supply section that supplies a gas into the fluidized bed furnace through the first nozzle group, a second supply section that supplies the gas into the fluidized bed furnace through both the first and second nozzle groups, and a control section that controls the second supply section during a start-up operation to supply the gas into the fluidized bed furnace to form a fluidized bed of a fluid medium inside the fluidized bed furnace, and stops the supply of the gas by the second supply section and controls the first supply section during a normal operation to supply the gas into the fluidized bed furnace to form the fluidized bed of the fluid medium inside the fluidized bed furnace.

BED MANAGEMENT CYCLE FOR A FLUIDIZED BED BOILER AND CORRESPONDING ARRANGEMENT

The invention relates to abed management cycle for a fluidized bed boiler, comprising the steps of: a) providing fresh ilmenite particles as bed material to the fluidized bed boiler; b) carrying out a fluidized bed combustion process; c) removing at least one ash stream comprising ilmenite particles from the fluidized bed boiler; d) separating ilmenite particles from the at least one ash stream; e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler. The invention also relates to a corresponding arrangement for carrying out fluidized bed combustion, comprising a fluidized bed boiler comprising ilmenite particles as bed material; and a system for removing ash from the fluidized bed boiler; wherein the arrangement further comprises a separator for separating ilmenite particles from the re-moved ash; and means for recirculating separated ilmenite particles into the bed of the fluidized bed boiler. 1. A bed management cycle for a fluidized bed boiler , comprising the steps of:a) providing fresh ilmenite particles as bed material to the fluidized bed boiler;b) carrying out a fluidized bed combustion process;c) removing at least one ash stream comprising ilmenite particles from the fluidized bed boiler;d) separating ilmenite particles from the at least one ash stream;e) recirculating separated ilmenite particles into the bed of the fluidized bed boiler.2. The bed management cycle of claim 1 , characterized in that the ilmenite particles are separated by magnetic separation and/or electric separation claim 1 , wherein preferably electric separation comprises electrostatic separation.3. The bed management cycle of or claim 1 , characterized in that steps c) claim 1 , d) and e) are carried out multiple times claim 1 , preferably to provide for a continuous recirculation of separated ilmenite particles into the boiler.4. The bed management cycle of any one of - claim 1 , characterized in that the ilmenite particles arei) separated from the at ...

Bubbling Fluidized Bed Combustion Device and Method for Monitoring the Fluidized Bed in Such a Combustion Device

A bubbling fluidized bed combustion device () comprising a fluidization vessel (), a fluidized sand bed () arranged in the fluidization vessel and an arrangement for monitoring the fluidized sand bed. The arrangement comprises at least one radar level gauge () arranged to repeatedly measure a distance (D) in the fluidization vessel from a reference point () to at least one portion () of the top surface of () the fluidized sand bed, and to provide a measurement signal (S) representative of the distance. The invention also relates to a method for monitoring a fluidized bed in a bubbling fluidized bed combustion device. 1. A bubbling fluidized bed combustion device comprisinga fluidization vessel;a fluidized sand bed arranged in said fluidization vessel; andan arrangement for monitoring said fluidized sand bed, said arrangement comprising at least one radar level gauge arranged to repeatedly measure a distance in said fluidization vessel from a reference point to at least one portion of the top surface of the fluidized sand bed, and to provide a measurement signal representative of said distance.2. The bubbling fluidized bed combustion device according to claim 1 , wherein said arrangement further comprises evaluation means configured to repeatedly determine a bed state parameter based on said signal claim 1 , said state parameter being one of said distance claim 1 , a level of said fluidized sand bed or a height of said fluidized sand bed.3. The bubbling fluidized bed combustion device according to claim 2 , wherein said evaluation means is configured to repeatedly determine a variation of said bed state parameter including determining an amplitude and/or a frequency of said variation based on current and previously determined bed state parameter values.4. The bubbling fluidized bed combustion device according to claim 3 , wherein said evaluation means is configured to repeatedly store data in a memory claim 3 , said data including at least one of the determined bed ...

High temperature and pressure solids handling system

A fluidized bed gasification system which comprises a fluidized bed gasification reactor having a bottom ash discharge outlet below the reactor, wherein an L-valve is used to control the rate of bottom ash discharge. The L-valve uses an aeration port located on distal side of the L-valve vertical pipe at a location that is above the center line of the horizontal pipe. Also provided are methods of controlling the bottom ash discharge as well the fluidized reaction bed height of the system.

Biomass Upgrading System

Aspects provide for volatilizing a biomass-based fuel stream, removing undesirable components from the resulting volatiles stream, and combusting the resulting stream (e.g., in a kiln). Removal of particles, ash, and/or H2O from the volatiles stream improves its economic value and enhances the substitution of legacy (e.g., fossil) fuels with biomass-based fuels. Aspects may be particularly advantageous for upgrading otherwise low-quality biomass to a fuel specification sufficient for industrial implementation. A volatilization reactor may include a fluidized bed reactor, which may comprise multiple stages and/or a splashgenerator. A splashgenerator may impart directed momentum to a portion of the bed to increase bed transport via directed flow.

SPRAY, JET, AND/OR SPLASH INDUCED CIRCULATION AMONG INTEGRATED BUBBLING ZONES IN A BUBBLING FLUIDIZED BED REACTOR

Various aspects provide for a fluidized bed reactor comprising a container having a bed of bed solids and a splashgenerator configured to impart a directed momentum to a portion of the bed solids. A bedwall may separate the bed solids into first and second reaction zones, and the directed momentum may be used to transfer bed solids from one zone to the other. A return passage may provide for return of the transferred bed solids, providing for circulation between the zones. A compact circulating bubbling fluidized bed may be integrated with a reactor having first and second stages, each with its own fluidization gas and ambient. A multistage reactor may comprise a gaswall separating at least the gas phases above two different portions of the bed. A gaslock beneath the gaswall may provide reduced gas transport while allowing bed transport, reducing contamination. 1400400410410420500700. A fluidized bed reactor ( , ′ , , ′ , , , ) configured to react a fuel in a fluidized bed of bed solids , the reactor comprising:{'b': '303', 'claim-text': [{'b': '312', 'claim-text': [{'b': 314', '312, 'a LowOx gas inlet () disposed at a first portion of a bottom of the container and configured to fluidize the bed solids in the LowOx reaction zone () to create a first bubbling fluidized bed; and'}, {'b': 311', '314, 'a LowOx gas supply () configured to supply an inert and/or less-oxidizing gas to the LowOx gas inlet () to volatilize the fuel to yield a volatiles stream and char; and'}], 'a LowOx reaction zone () comprising, {'b': '332', 'claim-text': [{'b': 334', '332, 'an oxidant inlet () disposed at a second portion of the bottom of the container configured to fluidize the bed solids in the HiOx reaction zone () to create a second bubbling fluidized bed;'}, {'b': 331', '334', '311, 'a HiOx gas supply () configured to supply the oxidant inlet () with a gas that is more oxidizing than that supplied by the LowOx gas supply (), the HiOx gas supply and oxidant inlet configured to combust ...

Apparatus and method for measuring height of solid bed in high-temperature and high-pressure fluidized bed system

Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.

METHOD FOR OPERATING A FLUIDIZED BED BOILER

The invention relates to a method for operating a fluidized bed boiler, comprising carrying out the combustion process with a fluidized bed comprising ilmenite particles, wherein the average residence time of the ilmenite particles in the boiler is at least 75 hours. The invention further relates to ilmenite particles obtainable by a corresponding method and the use of said ilmenite particles as oxygen-carrying material. 1. A method for operating a fluidized bed boiler , comprising carrying out the combustion process with a fluidized bed comprising ilmenite particles , wherein the average residence time of the ilmenite particles in the boiler is at least 75 hours.2. The method of claim 1 , characterized in that the average residence time of the ilmenite particles in the boiler is at least 100 hours claim 1 , preferably at least 120 hours claim 1 , further preferably at least 150 hours claim 1 , further preferably at least 200 hours claim 1 , further preferably at least 250 hours claim 1 , further preferably at least 290 hours claim 1 , most preferably at least 300 hours.3. The method of or claim 1 , wherein the average residence time of the ilmenite particles in the boiler is less than 600 hours claim 1 , preferably less than 500 hours claim 1 , further preferably less than 400 hours claim 1 , further preferably less than 350 hours.4. The method of any one of - claim 1 , further comprising:a) removing at least one ash stream comprising ilmenite particles from the boiler;b) separating ilmenite particles from the at least one ash stream.5. The method of claim 4 , characterized in that the ilmenite particles are magnetically separated from the at least one ash stream.6. The method of claim 4 , characterized in that the ilmenite particles are electrically separated from the at least one ash stream claim 4 , preferably by means of an electrostatic separator.7. The method of any one of - claim 4 , characterized in that steps a) and b) are carried out multiple times.8. The ...

Fluidized bed reactor system

Die Erfindung betrifft ein Wirbelschichtreaktorsystem, umfassend einen oder mehrereWirbelschichtreaktoren (1, 2, 20) zur Durchführung chemischer oder physikalischerReaktionen, wovon zumindest ein Reaktor als schnell fluidisierter Reaktor zum Betriebals zirkulierende Wirbelschicht ausgeführt ist und am oberen Ende einen Fluidauslass(5, 6), einen Partikelabscheider (3, 4) und eine damit verbundene Partikelleitung(7, 8) zur Rückführung abgeschiedener Wirbelschichtpartikel in denselben odereinen weiteren Reaktor umfasst, wobei in zumindest einem schnell fluidisiertenReaktor ein oder mehrere Strömungsregler (18, 21) vorgesehen sind, um darin voneinandergetrennte Reaktionszonen (9, 10, 22) zu erzeugen, mit dem Kennzeichen,dass zur Regelung der Strömungsverhältnisse in den Reaktionszonen (9, 10, 22)einer oder mehrere der Strömungsregler (18, 21) von außerhalb des Systems gezieltverstellbar ist/sind. The invention relates to a fluidized-bed reactor system comprising one or more fluidized-bed reactors (1, 2, 20) for carrying out chemical reactions, at least one reactor being designed as a rapidly fluidized reactor for operation as a circulating fluidized bed and having a fluid outlet (5, 6) at the top Particle separator (3, 4) and associated particle line (7, 8) for recycling deposited fluidized bed particles into the same or a further reactor, wherein in at least one fast fluidized reactor one or more flow regulators (18, 21) are provided for separating reaction zones (18, 21) therebetween. 9, 10, 22), with the characteristic that for controlling the flow conditions in the reaction zones (9, 10, 22) one or more of the flow regulators (18, 21) is / are selectively adjustable from outside the system.

Fluidized bed reactor system

Die Erfindung betrifft ein Wirbelschichtreaktorsystem, umfassend einen oder mehrereWirbelschichtreaktoren (1, 2, 20) zur Durchführung chemischer oder physikalischerReaktionen, wovon zumindest ein Reaktor als schnell fluidisierter Reaktor zum Betriebals zirkulierende Wirbelschicht ausgeführt ist und am oberen Ende einen Fluidauslass(5, 6), einen Partikelabscheider (3, 4) und eine damit verbundene Partikelleitung(7, 8) zur Rückführung abgeschiedener Wirbelschichtpartikel in denselben odereinen weiteren Reaktor umfasst, wobei in zumindest einem schnell fluidisiertenReaktor ein oder mehrere Strömungsregler (18, 21) vorgesehen sind, um darin voneinandergetrennte Reaktionszonen (9, 10, 22) zu erzeugen, mit dem Kennzeichen,dass zur Regelung der Strömungsverhältnisse in den Reaktionszonen (9, 10, 22)einer oder mehrere der Strömungsregler (18, 21) von außerhalb des Systems gezieltverstellbar ist/sind. The invention relates to a fluidized-bed reactor system comprising one or more fluidized-bed reactors (1, 2, 20) for carrying out chemical reactions, at least one reactor being designed as a rapidly fluidized reactor for operation as a circulating fluidized bed and having a fluid outlet (5, 6) at the top Particle separator (3, 4) and associated particle line (7, 8) for recycling deposited fluidized bed particles into the same or a further reactor, wherein in at least one fast fluidized reactor one or more flow regulators (18, 21) are provided for separating reaction zones (18, 21) therebetween. 9, 10, 22), with the characteristic that for controlling the flow conditions in the reaction zones (9, 10, 22) one or more of the flow regulators (18, 21) is / are selectively adjustable from outside the system.

用于回收利用旋风分离器中固体颗粒的回料阀以及流化床反应器和其使用方法

本发明提供一种用于流化床反应器的回料阀，包括与料腿连接的垂直下降管部分用于收集从料腿释放的固体颗粒，位于该下降管部分下游的水平管部分，位于该水平管部分下游的上升管部分，以及位于该上升管部分下游的向下倾斜的斜管部分，通过该装置将固体颗粒带至流化床反应器中。该斜管部分还设有将底流气体从旋风分离器引入的引射器；较佳地，引射器原动流体为燃料制备产生的微粒以及该些微粒的载气。还提供一种包括该回料阀的流化床反应器以及一种使用其从煤及水蒸气生产合成气的方法。

Loop seal for recycling solids from a cyclone and fluidized bed reactor and method using the same

A loop seal for a fluidized bed reactor comprising a vertical downcomer segment connected to a dipleg for receiving solids particles from the dipleg, a horizontal segment downstream of the downcomer, a riser segment downstream of the horizontal segment, and a downwardly inclined segment downstream of the riser, whereby the solids are entrained to the fluidized bed reactor. An eductor is added to the angled leg to induce the underflow gas from the cyclone; one of the preferred motive fluids to the eductor is the fines from fuel preparation and the carrying gas for the fines. Also provided are a fluidized bed reactor comprising the loop seal, and a method for producing syngas from coal and steam using the same.

Loop seal for recycling solids from a cyclone and fluidized bed reactor and method using the same

A loop seal for a fluidized bed reactor comprising a vertical downcomer segment connected to a dipleg for receiving solids particles from the dipleg, a horizontal segment downstream of the downcomer, a riser segment downstream of the horizontal segment, and a downwardly inclined segment downstream of the riser, whereby the solids are entrained to the fluidized bed reactor. An eductor is added to the angled leg to induce the underflow gas from the cyclone; one of the preferred motive fluids to the eductor is the fines from fuel preparation and the carrying gas for the fines. Also provided are a fluidized bed reactor comprising the loop seal, and a method for producing syngas from coal and steam using the same.

用于回收利用旋风分离器中固体颗粒的回料阀以及流化床反应器和其使用方法

本发明提供一种用于流化床反应器的回料阀，包括与料腿连接的垂直下降管部分用于收集从料腿释放的固体颗粒，位于该下降管部分下游的水平管部分，位于该水平管部分下游的上升管部分，以及位于该上升管部分下游的向下倾斜的斜管部分，通过该装置将固体颗粒带至流化床反应器中。该斜管部分还设有将底流气体从旋风分离器引入的引射器；较佳地，引射器原动流体为燃料制备产生的微粒以及该些微粒的载气。还提供一种包括该回料阀的流化床反应器以及一种使用其从煤及水蒸气生产合成气的方法。

Differential Pressure Measurement Method and Apparatus for Measurement of Solid Height in a High Temperature and High Pressure Fluidized Bed System

The present invention relates to a device and a method of measuring a height of a solid bed in a fluidized bed system at high temperature and high pressure, and a fluidized bed system having a device to measure the height of the solid bed. More specifically, the device to measure the height of the solid bed in the fluidized bed system comprises: a lower pressure probe installed in an upper part at a first height predetermined from a gas dispersion plate of a fluidized bed reactor, measuring pressure on an installed position; a middle pressure probe installed in the upper part on a second height predetermined from a lower pressure probe, measuring pressure of the installed position thereof; an upper pressure probe installed in the upper part of the fluidized bed reactor measuring an inner pressure of the fluidized bed reactor; a first differential pressure meter measuring a first differential pressure value which is a differential pressure between a first pressure value measured in the lower pressure probe, and a second pressure value measured in a middle pressure probe; and a second differential pressure meter measuring a second differential pressure value which is a differential pressure between the first pressure value measured in the lower pressure probe and a third pressure value measured in the upper pressure probe. The device to measure the height of a solid bed in a fluidized bed system is able to accurately measure the height of the solid bed in the fluidized bed even in a case where density of the particles are changed by a reaction.

Apparatus and method for measuring height of solid bed in high-temperature and high-pressure fluidized bed system

Disclosed are an apparatus and a method for measuring the height of a solid bed in a high-temperature and high-pressure fluidized bed system, and a fluidized bed system having the solid bed height measuring apparatus. The solid bed height measuring apparatus includes a lower pressure probe mounted at an upper side as high as a first height from a gas distributor of a fluidized bed reactor to measure pressure of the mounted location, and a middle pressure probe mounted at an upper side as high as a second height from the lower probe to measure pressure of the mounted location. An upper pressure probe is mounted at the top of the fluidized bed reactor to measure the inside pressure of the fluidized bed reactor. First and second differential pressure gauges are used for measuring differential pressures.

Method for operating a circulating fluidized bed gasification or combustion system

Circulating fluidized bed gasification or combustion system

The present invention is related to a circulating fluidized bed gasification or combustion system (1) using coal or biomass as raw material and comprising a combustion/gasification reactor (2); a cyclone (3) which is in connection with the reactor (2) in order that solid particles are separated from gas flow; a downcomer (4) which is in connection with the reactor (2) and the cyclone (3), extends along the reactor (2), and enables solid particles captured by the cyclone (3) to be sent to the combustion/gasification reactor (2) again; a distributing plate (5) which is in connection with the reactor (2) and performs primary gas supply to the system (1) homogeneously; at least one conduit which is positioned parallel to the downcomer (4); an ejector (7) which is positioned on the downcomer (4) vertically, comprises at least one nozzle (6) spraying pressurized gas towards the reactor (2), and creates a solid column (b) between the reactor (2) and the cyclone (3) by creating vortexes (a) on account of the fact that the pressurized gas sprayed by means of the said nozzle (6) spreads to the environment from the nozzle located on the downcomer (4) in order to prevent counter flow of particle and gas that may occur towards the downcomer (4) and the cyclone (3) from inside the reactor (2).

Circulating fluidized bed gasification or combustion system

The present invention is related to a circulating fluidized bed gasification or combustion system ( 1 ) using coal or biomass as raw material and comprising a combustion/gasification reactor ( 2 ); a cyclone ( 3 ) which is in connection with the reactor ( 2 ) so as to seperate solid particles from gas flow; a downcomer ( 4 ) which is in connection with the reactor ( 2 ) and the cyclone ( 3 ), extends along the reactor ( 2 ), and enables solid particles captured by the cyclone ( 3 ) to be sent to the combustion/gasification reactor ( 2 ) again; a distributing plate ( 5 ) which is in connection with the reactor ( 2 ) and provides primary gas supply to the system ( 1 ) homogeneously; at least one conduit which is positioned parallel to the downcomer ( 4 ); an ejector ( 7 ) which is positioned on the downcomer ( 4 ) vertically, comprises at least one nozzle ( 6 ) spraying pressurized gas towards the reactor ( 2 ).

System and method and apparatus for maintaining a pressure balance in a solids flow loop and for controlling the flow of solids therethrough

A system includes a standpipe for receiving a flow of solids therethrough, the standpipe having at least one inlet configured to receive a gas for decreasing a solids-to-gas ratio of the flow, a sealpot having an inlet fluidly coupled to the standpipe and an outlet fluidly coupled to a riser, the sealpot being configured to fluidize the solids received from the standpipe and to transport the solids to the riser, and a drain device fluidly coupled to an outlet in the standpipe, the outlet being located upstream from the inlet of the sealpot. The drain device is configured to remove the excess gas from the flow of solids within the standpipe to increase the solids-to-gas ratio of the flow prior to the solids entering the sealpot.

用来转化燃料的系统

一种用来转化燃料的系统，其可以包括第一运动床反应器、第二反应器以及非机械阀。第一运动床反应器可以包括至少一个锥形部分和多个注入气体端口。多个注入气体端口可以构造成用以将燃料输送到第一运动床反应器。第一运动床反应器可以构造成用以通过相对于载氧材料限定用于燃料的逆流流动路径而用燃料被还原载氧材料。第二反应器可以与第一运动床反应器连通，并且可以被操作以接收氧气源。第二反应器可以构造成用以通过氧化使得被还原载氧材料再生。

Operating method of bioethanol production unit

FIELD: power industry. SUBSTANCE: operating method of a bioethanol production unit, in which organic wastes of the production process, and mainly DGS and DDGS are burnt. After that, the obtained useful heat is again supplied to the same unit. A combustion process is performed in a fluidised-bed furnace. Such amount of heat is removed from all the volumes, in which the combustion process takes place, that temperature in all places does not exceed an ash fusion temperature of production wastes, first of all 700°C, with small-grain ash that is added to the fluidised bed and utilised. Useful heat is obtained partially from flue gases formed at combustion and partially from the heat removed from the combustion process to maintain maximum temperature. EFFECT: invention will allow improving utilisation efficiency of organic wastes to obtain bioethanol. 13 cl, 1 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 508 503 (13) C2 (51) МПК F23G 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2011124511/03, 17.10.2009 (24) Дата начала отсчета срока действия патента: 17.10.2009 (72) Автор(ы): ЛИНК Керстен (DE), НОЙМАНН Уве (DE) (73) Патентообладатель(и): АЙЗЕНМАНН АГ (DE) R U Приоритет(ы): (30) Конвенционный приоритет: 21.11.2008 DE 102008058501.7 (43) Дата публикации заявки: 27.12.2012 Бюл. № 36 2 5 0 8 5 0 3 (45) Опубликовано: 27.02.2014 Бюл. № 6 (56) Список документов, цитированных в отчете о поиске: US 2005/2744308 A1, 15.12.2005. US 3913500 A, 21.10.1975. DE 1551450 A1, 13.01.1972. DE 102006013403 A1, 27.09.2007. RU 2266468 C1, 20.12.2005. 2 5 0 8 5 0 3 R U (86) Заявка PCT: EP 2009/007466 (17.10.2009) C 2 C 2 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 21.06.2011 (87) Публикация заявки РСТ: WO 2010/057554 (27.05.2010) Адрес для переписки: 105082, Москва, Спартаковский пер., 2, стр. 1, секция 1, этаж 3, "ЕВРОМАРКПАТ" (54) СПОСОБ ЭКСПЛУАТАЦИИ УСТАНОВКИ ДЛЯ ПРОИЗВОДСТВА БИОЭТАНОЛА (57) Реферат: ...

Valve for controlling solid phase in fluidized layer with high reliability

FIELD: machine engineering. SUBSTANCE: invention relates to reactor structures comprising a circulating fluidized layer and one or more bubbling fluidized layers, and also to non-mechanical valves to selectively control the flow of solid phase particles moving between zones with a slow bubbling layer and zones with highly fluidized circulating layers. The non-mechanical valve comprises a partition wall separating the two sections, an opening in the partition wall, independently adjustable fluidizing means arranged upstream or downstream relative to the opening, connected to the fluidizing medium supplying means and configured to selectively control the flow of the particulate solid phase passing through the opening, collectors connected to independently controlled fluidizing means, enabling the collection of any solid phase particles entering the fluidizing means so that the accumulated solid phase does not interfere with the supply of the fluidizing medium to the fluidizing means, and independently controlled solid phase removal means located upstream or downstream relative to the opening, designed to remove the solid phase and agglomerates. EFFECT: improved control of local fluidization and operation of non-mechanical valves. 36 cl, 10 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) (13) 2 627 866 C2 (51) МПК B01J 8/24 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21)(22) Заявка: 2015118310, 27.08.2013 (24) Дата начала отсчета срока действия патента: 27.08.2013 Дата регистрации: (73) Патентообладатель(и): ТЕ БАБКОК ЭНД ВИЛКОКС КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: 17.10.2012 US 13/653,636 (45) Опубликовано: 14.08.2017 Бюл. № 23 (56) Список документов, цитированных в отчете о поиске: US 2011/0073049 A1, 31.03.2011. US 5365889 A, 22.11.1994. US 2006/0000143 A1, 05.01.2006. RU 2459659 C1, 27.08.2012. (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.05.2015 (86) Заявка PCT: US 2013/056724 ...

Method and device for controlling the temperature of a reaction carried out in a fluidized bed

Method and a device for controlling the temperature of a reaction carried out within a vessel in a fluidized bed containing solid particles which can be entrained with the smoke and then recovered in a separating device and recycled into the fluidized bed after passage through a heat exchanger where they yield up their heat. The flow of particles separated from the smoke is divided into two parts, a hot part recycled directly into the fluidized bed and a cool part constituted by particles taken up at the outlet of the separating device and passed into the heat exchanger to constitute a reserve of cold material which can be mixed with the hot part before reinjection into the fluidized bed, the relative flow rates of the hot particles and of the cold particles being regulated so as to control the flow-rate and the average temperature of the flow of particles recycled into the fluidized bed for maintaining at the desired level the reaction temperature in the midst of the latter.

Fluidised bed device with quick fluidisation and saturated flow of circulating solids

The invention relates to a reactor (1) for a quick fluidised bed including a substantially cylindrical housing (10), an upper portion (11) for connecting to the inlet of a solid-separating cyclone (2) and a lower portion (12) for connecting to a duct (4) for the egress of solids from said cyclone. According to the invention, the housing (10) is flared with inclined walls and the lower section thereof is in the upper portion.

Fluidised bed device with quick fluidisation and saturated flow of circulating solids

The invention relates to a reactor (1) for a quick fluidised bed including a substantially cylindrical housing (10), an upper portion (11) for connecting to the inlet of a solid-separating cyclone (2) and a lower portion (12) for connecting to a duct (4) for the egress of solids from said cyclone. According to the invention, the housing (10) is flared with inclined walls and the lower section thereof is in the upper portion.

Control method of temperature of fluidized bed furnace

(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。

Circulating Fluidized Bed Boiler

분리기에 의해 배가스로부터 분리되는 고체 입자들로부터 회수되는 열의 양을 조절할 수 있는 순환 유동층 보일러가 개시된다. 본 발명의 순환 유동층 보일러는 연료가 유동화 및 연소되는 연소로, 상기 연료의 연소로 인해 발생되는 배가스 및 고체 입자들을 상기 연소로로부터 받아 상기 고체 입자들을 상기 배가스로부터 분리하는 분리기, 및 상기 분리기에 의해 상기 배가스로부터 분리된 상기 고체 입자들을 상기 연소로로 복귀시키는 리턴 시스템을 포함한다. 상기 리턴 시스템은 상기 분리기로부터 공급되는 상기 고체 입자들과 냉각 매체 사이에 열교환이 이루어지는 열교환부, 상기 열교환부 내로 유동화 가스를 공급하는 가스 공급부, 및 상기 열교환부에서 냉각된 상기 고체 입자들이 상기 연소로로 복귀하는 통로를 제공하는 복귀 파이프를 포함한다. 본 발명의 순환 유동층 보일러는 상기 열교환의 양에 따라 상기 열교환부에 공급되는 상기 냉각 매체의 양을 조절하는 제어부를 더 포함한다. A circulating fluidized bed boiler is disclosed that is capable of regulating the amount of heat recovered from solid particles separated from flue-gas by a separator. The circulating fluidized-bed boiler of the present invention includes a separator for separating the solid particles from the exhaust gas from the combustion furnace, the exhaust gas generated by the combustion of the fuel, and the solid particles from the combustion furnace, And a return system for returning the solid particles separated from the exhaust gas to the combustion furnace. The return system includes a heat exchanging unit for performing heat exchange between the solid particles supplied from the separator and the cooling medium, a gas supplying unit for supplying the fluidizing gas into the heat exchanging unit, Lt; RTI ID = 0.0 > a < / RTI > The circulating fluidized bed boiler of the present invention further includes a control unit for controlling the amount of the cooling medium supplied to the heat exchanging unit according to the amount of heat exchange.

METHOD OF OPERATION OF INSTALLATION FOR PRODUCTION OF BIOETHANOL

1. Способ эксплуатации установки для производства биоэтанола, в котором органические отходы процесса производства, прежде всего DGS и DDGS, сжигают, и полученное таким образом полезное тепло снова подводят к этой же установке, отличающийся тем, чтоа) отходы производства сжигают в печи (2) с кипящим слоем, и от всех объемов (9, 11), в которых происходит процесс сжигания, отводят такое количество тепла, что ни в одном месте температура не превышает температуру плавления золы отходов производства, прежде всего 700°С;б) полезное тепло получают частично из образующихся при сгорании дымовых газов и частично из тепла, отводимого из процесса сжигания для поддержания максимальной температуры.2. Способ по п.1, отличающийся тем, что полезное тепло по меньшей мере частично используют для получения пара.3. Способ по п.1 или 2, отличающийся тем, что для отвода тепла из процесса сжигания используют по меньшей мере один теплообменник (17, 18), через который протекает теплоноситель.4. Способ по п.3, отличающийся тем, что теплоносителем является вода.5. Способ по п.3, отличающийся тем, что теплоносителем является масло-теплоноситель.6. Способ по пп.1, 2, 4 или 5, отличающийся тем, что воздух, который используют для получения кипящего слоя (9), подогревают выходящими из печи (2) с кипящим слоем дымовыми газами.7. Способ по п.3, отличающийся тем, что воздух, который используют для получения кипящего слоя (9), подогревают выходящими из печи (2) с кипящим слоем дымовыми газами.8. Способ по пп.1, 2, 4, 5 или 7, отличающийся тем, что отходы производства, которые воспламенились бы при нанесении на кипящий слой (9), вводят непосредственно в кипящий слой (9).9. Способ по п.3, отличающий РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2011 124 511 (13) A (51) МПК F23G 5/30 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (71) Заявитель(и): АЙЗЕНМАНН АГ (DE) (21)(22) Заявка: 2011124511/03, 17.10.2009 Приоритет(ы): (30) Конвенционный приоритет: 21.11.2008 DE ...

Method and the device for the heat recovery in the reactor with the fluidized layer

FIELD: chemical industry; methods and the devices for the heat recovery in the reactors with the fluidized layers. SUBSTANCE: the invention is pertaining to the method and the device for the heat recovery in the reactor with the fluidized layer. The reactor with the fluidized layer contains the furnace, the heat-exchange chamber, the discharge channel connected to the lower part of the heat-exchange chamber used for removal of the material in the form of the particles from the heat-exchange chamber into the furnace, and essentially the vertical auxiliary channel for relocation of the material in the form of the particles from the heat-exchange chamber into the furnace and from the furnace into the heat-exchange chamber. The lower part of the auxiliary channel is supplied with the nozzles for the gas used for the pseudo-liquefaction process and with the tube for the stream for coupling of the auxiliary channel with the furnace. The upper part is supplied with the tube for the stream for coupling of the auxiliary channel with the heat-exchange chamber. The furnace, the heat-exchange chamber, the discharge channel and the auxiliary channel form the uniform construction having the discharge channel and the auxiliary channel located adjoining between the furnace and the heat-exchange chamber. The invention ensures the accurate regulation of the efficiency of the heat-exchange process for all sorts of the reactor loads. EFFECT: the invention ensures the accurate regulation of the efficiency of the heat-exchange process for all sorts of the reactor loads. 23 cl, 5 dwg ÐÎÑÑÈÉÑÊÀß ÔÅÄÅÐÀÖÈß RU (19) (11) 2 300 415 (13) C2 (51) ÌÏÊ B01J 8/26 (2006.01) B01J 8/38 (2006.01) F23C 10/04 (2006.01) ÔÅÄÅÐÀËÜÍÀß ÑËÓÆÁÀ ÏÎ ÈÍÒÅËËÅÊÒÓÀËÜÍÎÉ ÑÎÁÑÒÂÅÍÍÎÑÒÈ, ÏÀÒÅÍÒÀÌ È ÒÎÂÀÐÍÛÌ ÇÍÀÊÀÌ (12) ÎÏÈÑÀÍÈÅ ÈÇÎÁÐÅÒÅÍÈß Ê ÏÀÒÅÍÒÓ (21), (22) Çà âêà: 2005135429/12, 14.04.2004 (24) Äàòà íà÷àëà îòñ÷åòà ñðîêà äåéñòâè ïàòåíòà: 14.04.2004 (30) Êîíâåíöèîííûé ïðèîðèòåò: 15.04.2003 FI 20030574 (73) ...

A pyrolysis method in connection with a boiler and a pyrolysis apparatus

本发明涉及与蒸发器相关的热解方法和热解设备。热解设备，其包括通过流化床燃烧运行的炉(1)，热解器(4)和流动路径，所述流动路径连接炉(1)和热解器(4)用于设置所述炉和所述热解器之间的流化床燃烧的载体材料的循环(C)。所述设备还包括将要被热解的燃料提供给热解器(4)的供应进口(14)，设置在所述热解器中用于流化载体材料和燃料的混合物的流化气体供应装置(5)，和用于将从要被热解的燃料中分离出的可冷凝气体物质输送出热解器(4)的出口(6)，以及用于冷凝所述可冷凝气体物质的冷凝器。在所述炉(1)所述载体材料循环通过同向原理沿着热烟道气的流动路径被设置，其包括位于高于热解器(4)的位置的分离器(3)，该分离器设置用来将载体材料从烟道气分离，而所述循环还包括分离器(3)和热解器(4)之间的连接管线(11)用于通过重力将载体材料移动至热解器(4)，和在热解器(4)和炉(1)之间的返回路径(12)用于将所述载体材料返回至炉(1)。在由热解器(4)形成的所述室中出口(6)设置在其上部，在载体材料和燃料的流化混合物上面的空间中用于将所述可冷凝气体物质从所述热解器中移除。

It is used for converting the system of fuel

一种用来转化燃料的系统，其可以包括第一运动床反应器、第二反应器以及非机械阀。第一运动床反应器可以包括至少一个锥形部分和多个注入气体端口。多个注入气体端口可以构造成用以将燃料输送到第一运动床反应器。第一运动床反应器可以构造成用以通过相对于载氧材料限定用于燃料的逆流流动路径而用燃料被还原载氧材料。第二反应器可以与第一运动床反应器连通，并且可以被操作以接收氧气源。第二反应器可以构造成用以通过氧化使得被还原载氧材料再生。

Circulating fluidised bed boiler having two external heat exchangers for hot solid phase flow

Изобретение относится к энергетике и может быть использовано в котлах с циркулирующим псевдоожиженным слоем. Котел содержит топку, сепаратор твердой фазы, газовый затвор, две камеры теплообмена с псевдоожиженным слоем, при этом первая камера теплообмена с псевдоожиженным слоем расположена над второй камерой теплообмена, причем охлажденная твердая фаза выгружается из первой камеры в нижнюю часть топки, а вторая камера теплообмена расположена между нижними концами возвратных каналов первой камеры теплообмена. Изобретение дает возможность более компактно размещать теплообменники и другие компоненты системы котла в нижней секции топки. 8 з.п. ф-лы, 3 ил. РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК F23C 10/00 (11) (13) 2 543 108 C1 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ОПИСАНИЕ (21)(22) Заявка: ИЗОБРЕТЕНИЯ К ПАТЕНТУ 2013143137/06, 22.02.2012 (24) Дата начала отсчета срока действия патента: 22.02.2012 (72) Автор(ы): КАУППИНЕН Кари (FI), КИННУНЕН Пертти (FI) (73) Патентообладатель(и): ФОСТЕР УИЛЕР ЭНЕРДЖИА ОЙ (FI) Приоритет(ы): (30) Конвенционный приоритет: R U 24.02.2011 FI 20115181 (45) Опубликовано: 27.02.2015 Бюл. № 6 005537941 A1, 23.07.1996. RU 2107866 C1, 27.03.1998. SU 1781509 A1, 15.12.1992 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 24.09.2013 (86) Заявка PCT: FI 2012/050172 (22.02.2012) 2 5 4 3 1 0 8 (56) Список документов, цитированных в отчете о поиске: RU 2393386 C1, 27.06.2010. US (87) Публикация заявки PCT: 2 5 4 3 1 0 8 R U Адрес для переписки: 129090, Москва, ул. Б. Спасская, 25, строение 3, ООО "Юридическая фирма Городисский и Партнеры" (54) КОТЕЛ С ЦИРКУЛИРУЮЩИМ ПСЕВДООЖИЖЕННЫМ СЛОЕМ, ИМЕЮЩИЙ ДВА НАРУЖНЫХ ТЕПЛООБМЕННИКА ДЛЯ ПОТОКА ГОРЯЧЕЙ ТВЕРДОЙ ФАЗЫ (57) Реферат: Изобретение относится к энергетике и может охлажденная твердая фаза выгружается из первой быть использовано в котлах с циркулирующим камеры в нижнюю часть топки, а вторая камера псевдоожиженным слоем. Котел содержит топку, теплообмена расположена ...

Systems for converting fuel

A system for converting fuel may include a first moving bed reactor, a second reactor, and a non-mechanical valve. The first moving bed reactor may include at least one tapered section and multiple injection gas ports. The multiple injection gas ports may be configured to deliver a fuel to the first moving bed reactor. The first moving bed reactor may be configured to reduce an oxygen carrying material with a fuel by defining a countercurrent flowpath for the fuel relative to the oxygen carrying material. The second reactor may communicate with the first moving bed reactor and may be operable to receive an oxygen source. The second reactor may be configured to regenerate the reduced oxygen carrying material by oxidation.

System that burns waste with flexibility in operating capacity

본 발명의 일 실시 예는 폐기물을 연소시켜 에너지화시키는 시스템에서 폐기물 처리량을 증대시키고 폐기물 처리 효율도 증대시키는 기술을 제공한다. 본 발명의 실시 예에 따른 운전 용량 유연성이 확보된 폐기물 에너지화 시스템은, 연료를 제공받고 층물질로 유동사와 산소전달입자를 이용하여 연소를 수행하는 연소로; 연소로와 연결되고 연소로로부터 유동사와 산소전달입자 및 배기가스를 전달 받는 싸이클론; 싸이클론과 연결되고, 싸이클론으로부터 유동사와 산소전달입자가 포함된 혼합물을 전달받고, 혼합물의 일부를 연소로로 전달하는 루프실; 루프실로부터 혼합물의 나머지를 전달받고, 혼합물과 열교환유체 사이 열교환이 수행되도록 하여 혼합물을 냉각시키며, 환원된 산소전달입자를 산화시키는 외부열교환기; 및 연소로와 외부열교환기 사이에 형성되고, 외부열교환기를 통과하여 연소로로 유동하는 혼합물의 양을 조절하는 밸브부;를 포함한다. An embodiment of the present invention provides a technology for increasing the amount of waste and increasing the efficiency of waste treatment in a system for burning waste into energy. A waste energy conversion system having a flexible operating capacity according to an embodiment of the present invention includes: a combustion furnace that receives fuel and performs combustion using fluid sand and oxygen transfer particles as a layer material; a cyclone connected to the combustion furnace and receiving flowing sand and oxygen transfer particles and exhaust gas from the combustion furnace; a loop seal connected to the cyclone, receiving the mixture containing the flowing sand and oxygen transfer particles from the cyclone, and transferring a portion of the mixture to the combustion furnace; an external heat exchanger that receives the remainder of the mixture from the loop seal, cools the mixture by performing heat exchange between the mixture and the heat exchange fluid, and oxidizes the reduced oxygen transfer particles; and a valve unit formed between the combustion furnace and the external heat exchanger and controlling the amount of the mixture flowing through the external heat exchanger to the combustion furnace.

In-bed solids control valve

The circulating fluidized bed (CFB) boiler includes a reaction chamber. The foamed fluidized bed (BFB) comprises a built-in heat exchanger (IBHX) contained within the epidermis at the bottom of the reaction chamber and occupying a portion of the reaction chamber bottom. At least one non-mechanical valve comprising an opening between CFB and BFB and an independently controlled fluidizing means located upstream and downstream of the opening, is used to control the heat transfer to the IBHX by controlling solids release from the BFB to CFB do. The height of the bottom of the opening is located at or above the height of the fluidization means. A flow control barrier may be located downstream of the opening.

VALVE FOR REGULATING A SOLID PHASE IN A PSEUDO-LIQUEFIED LAYER WITH HIGHER RELIABILITY

1. Котел с циркулирующим псевдоожиженным слоем, содержащий:реакционную камеру котла с циркулирующим псевдоожиженным слоем, содержащую боковые стенки и распределительную решетку, образующую днище на нижнем конце реакционной камеры котла с циркулирующим псевдоожиженным слоем и выполненную с возможностью подачи псевдоожижающего газа в реакционную камеру котла с циркулирующим псевдоожиженным слоем;барботажный псевдоожиженный слой, созданный в пределах нижней части реакционной камеры котла с циркулирующим псевдоожиженным слоем и ограниченный ограждающими стенками и днищем реакционной камеры котла с циркулирующим псевдоожиженным слоем;по меньшей мере, один регулируемый погруженный в слой теплообменник, при этом указанный погруженный в псевдоожиженный слой теплообменник перекрывает часть днища реакционной камеры котла с циркулирующим псевдоожиженным слоем и находится с внутренней стороны ограждающих стенок секции с барботажным псевдоожиженным слоем;по меньшей мере, один немеханический клапан, выполненный с возможностью обеспечения регулирования отвода твердых частиц из барботажного псевдоожиженного слоя в циркулирующий псевдоожиженный слой реакционной камеры котла; при этом указанный клапан содержит, по меньшей мере, одно отверстие в ограждающей стенке барботажного псевдоожиженного слоя и, по меньшей мере, одно независимо регулируемое средство псевдоожижения, размещенное, по меньшей мере, выше или ниже по потоку относительно указанного отверстия;указанное, по меньшей мере, одно независимо регулируемое средство псевдоожижения соединено каждое с соответствующим средством подачи РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (51) МПК B01J 8/24 (11) (13) 2015 118 310 A (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2015118310, 27.08.2013 (71) Заявитель(и): ТЕ БАБКОК ЭНД ВИЛКОКС КОМПАНИ (US) Приоритет(ы): (30) Конвенционный приоритет: 17.10.2012 US 13/653,636 (85) Дата начала рассмотрения заявки PCT на национальной фазе: 18.05.2015 (86) ...

Direct energy balance coordinated control system used for large circulating fluid bed unit

本发明公开了一种用于大型循环流化床机组的直接能量平衡协调控制系统，其包括锅炉主控控制器、燃料主控控制器和汽机主控控制器；所述的锅炉主控控制器采用带二阶微分的汽包热量信号和动、静态前馈信号；所述动、静态前馈信号包括机组负荷指令对锅炉燃料的静态前馈信号LSff、机组负荷指令对锅炉燃料的动态前馈信号LDff、机组压力对锅炉燃料的动态前馈信号PDff、床温变化率对锅炉主控的动态前馈VtDf和负荷指令对一次风风量的动、静态前馈；锅炉主控控制器根据不同负荷段采用PID变参数控制，燃料主控控制器采用煤质校正控制回路。本发明的优点是提高了循环流化床机组协调控制的能力，解决了机组在协调控制方式下主汽压力波动大以及负荷响应速率低的问题。

DEVICE FOR EXTRACTING PARTICLE MATERIAL FROM A FLUIDIZED BED OUTSIDE THE FLUIDIZATION ENCLOSURE

Le dispositif comprend une ouverture 5 ménagée dans une paroi latérale de l'enceinte 1 de fluidisation, prolongée à l'extérieur de l'enceinte par une tubulure 6 qui lui est sensiblement perpendiculaire, une conduite 7 raccordée sensiblement perpendiculairement à cette tubulure 6 et s'étendant vers le bas, un piston 9 monté à coulissement étanche dans la tubulure 6 entre une première position dans laquelle il constitue panneau d'obturation de l'ouverture 5 et une seconde position dans laquelle il découvre au moins partiellement le débouché 8 de la conduite 7 dans la tubulure, et des moyens de commande 11, 12 du déplacement du piston dans la tubulure. The device comprises an opening 5 made in a side wall of the fluidization chamber 1, extended outside the chamber by a pipe 6 which is substantially perpendicular to it, a pipe 7 connected substantially perpendicular to this pipe 6 and s 'extending downwardly, a piston 9 mounted to slide tightly in the pipe 6 between a first position in which it constitutes a panel for closing off the opening 5 and a second position in which it at least partially uncovers the outlet 8 of the pipe 7 in the pipe, and control means 11, 12 of the displacement of the piston in the pipe.

INTEGRATED PROCESS FOR THERMAL CONVERSION OF A HEAVY HYDROCARBON CHARGE AND INDIRECT COMBUSTION IN A CHEMICAL OXIDE-REDUCTION LOOP

Procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés et le captage du CO 2 produit L'invention concerne un procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés. La charge hydrocarbonée lourde (1) est mise en contact avec des particules inertes (2) dans une zone de conversion thermique (100). La conversion thermique en absence de dihydrogène, de vapeur d’eau et de catalyseur, produit un premier effluent gazeux de composés hydrocarbonés (4) et du coke déposé sur les particules inertes (5). Ce dernier est alors brûlé dans une boucle chimique d’oxydo-réduction (200) en présence de particules d’un solide porteur d’oxygène (6). Les particules inertes circulent ainsi entre la zone de conversion thermique (100) et une zone de réduction (300) de la boucle chimique alors que les particules de solide porteur d’oxygène circulent entre les zones d’oxydation (400) et de réduction (300) de la boucle chimique. Figure pour l’abrégé : figure 1 Integrated process for the thermal conversion of a heavy hydrocarbon feedstock and indirect combustion in an oxidation-reduction chemical loop for the production of hydrocarbon streams and the capture of the CO 2 produced The invention relates to an integrated process for the thermal conversion of a feedstock heavy hydrocarbon and indirect combustion in an oxidation-reduction chemical loop for the production of hydrocarbon streams. The heavy hydrocarbon charge (1) is brought into contact with inert particles (2) in a thermal conversion zone (100). The thermal conversion in the absence of dihydrogen, water vapor and catalyst, produces a first gaseous effluent of hydrocarbon compounds (4) and coke deposited on the inert particles (5). The latter is then burned in a chemical oxidation- ...

Particle circulation control system in circulating fluidized bed furnace

METHOD AND APPARATUS FOR CONTROLLING THE THERMAL TRANSFER CARRIED OUT IN A FLUIDIZED BED

A method of and an apparatus for recovering heat in a fluidized bed reactor

A fluidized bed reactor, comprising a furnace, a heat exchange chamber, a substantially vertical discharge channel connected to the lower part of the heat exchange chamber for removing particulate material from the heat exchange chamber to the furnace, and a substantially vertical auxiliary channel for transferring particulate material from the heat exchange chamber to the furnace and from the furnace to the heat exchange chamber, the lower part of said auxiliary channel being provided with nozzles for fluidizing gas and with a flow conduit for connecting said auxiliary channel to the furnace and a flow conduit in the upper part for connecting said auxiliary channel to said heat exchange chamber. The furnace, heat exchange chamber, discharge channel and auxiliary channel preferably form an integrated structure having the discharge channel and the auxiliary channel adjacently arranged between the furnace and the heat exchange chamber.

FAST FLUIDIZED FLUIDIZED BED DEVICE WITH SATURATED FLOW OF CIRCULATING SOLIDS

L'invention concerne un réacteur (1) pour lit fluidisé circulant comportant une enceinte (10) sensiblement cylindrique de section polyédrique, une partie haute (11) de raccordement à l'entrée d'un cyclone (2) de séparation des solides et une partie basse (12) de raccordement à une conduite (4) de sortie des solides dudit cyclone. Selon l'invention, ladite enceinte (10) comporte des profils de re-mélange (13) en forme de nervures annulaires internes réparties sur au moins une partie de sa hauteur. The invention relates to a reactor (1) for a circulating fluidized bed comprising a substantially cylindrical enclosure (10) of polyhedral section, an upper part (11) for connection to the inlet of a cyclone (2) for separating solids and a lower part (12) for connection to a pipe (4) for outputting solids from said cyclone. According to the invention, said enclosure (10) comprises re-mixing profiles (13) in the form of internal annular ribs distributed over at least a portion of its height.

Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method

A gasification furnace (110) of a circulating fluidized bed-type gasification furnace (100) turns a flow medium into a fluidized bed and gasifies, with the heat of the fluid medium, an injected gasification raw material, generating a gasified gas. A combustion furnace (102) heats the fluid medium drawn from the gasification furnace. A flow amount adjustment unit (106) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer unit (112). In this way, regardless of the flow amount of the fluid medium in the entirety of the circulating fluidized bed-type gasification furnace (100), by the buffer (112) bypassing the fluid medium to the combustion furnace (102), a desired flow amount of the fluid medium can be maintained in the gasification furnace (110).

Boiler plant for a combustion chamber comprising a plurality of fluid bed stages, and method for its control and regulation

VALVE INTENDED FOR REGULATING THE RELEASE OF SOLID PARTICLES IN THE LAYER

1. Котел с циркулирующим псевдоожиженным слоем, содержащий ! реакционную камеру циркулирующего псевдоожиженного слоя, имеющую боковые стенки и решетку, ограничивающую под на нижнем конце реакционной камеры циркулирующего псевдоожиженного слоя для обеспечения (подачи) псевдоожижающего газа в реакционную камеру циркулирующего псевдоожиженного слоя; ! кипящий псевдоожиженный слой, расположенный в нижней части реакционной камеры циркулирующего псевдоожиженного слоя и ограниченный стенками кожуха и подом реакционной камеры циркулирующего псевдоожиженного слоя; ! по меньшей мере, один поддающийся регулированию теплообменник в слое, причем теплообменник в слое занимает часть пода реакционной камеры циркулирующего псевдоожиженного слоя и окружен стенками кожуха кипящего псевдоожиженного слоя; и, ! по меньшей мере, один немеханический клапан, предназначенный для разрешения регулирования выпуска твердых частиц из кипящего псевдоожиженного слоя в реакционную камеру циркулирующего псевдоожиженного слоя, причем клапан включает в себя, по меньшей мере, одно отверстие в стенке кожуха кипящего псевдоожиженного слоя, по меньшей мере, одно независимо регулируемое первое псевдоожижающее средство, расположенное выше по технологической цепочке, по меньшей мере, от одного отверстия в стенке кожуха, по меньшей мере, одно независимо регулируемое второе псевдоожижающее средство, расположенное ниже по технологической цепочке, по меньшей мере, от одного отверстия в стенке кожуха, ! в котором возвышение нижней части, по меньшей мере, одного отверстия немеханического клапана в стенке оболочки находится у верхней час� РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2010 139 127 (13) A (51) МПК F16K 1/00 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ (12) ЗАЯВКА НА ИЗОБРЕТЕНИЕ (21)(22) Заявка: 2010139127/06, 23.09.2010 (71) Заявитель(и): БЭБКОК ЭНД УИЛКОКС ПАУА ДЖЕНЕРЕЙШН ГРУП, ИНК. (US) Приоритет(ы): (30) Конвенционный приоритет: 30.09.2009 US 12/570,823 R U (57) Формула изобретения 1. Котел с ...

Fuel control method and system applied to circulating fluidized bed boiler

本发明公开了一种应用于循环流化床锅炉的燃料控制方法及系统，包括：锅炉主汽压力设定值与实际主汽压力值的偏差经过锅炉主控PID控制后，分别输出左侧燃料控制值和右侧燃料控制值；左侧温度与右侧温度的偏差值与设定偏差值经过温度PID控制后，分别输出左侧温度控制值和右侧温度控制值；左侧燃料控制值与左侧温度控制值相加后与左侧实际燃料量经过燃料PID控制后，输出左侧给煤机的给煤量的调节信号；右侧燃料控制值与右侧温度控制值相加后与右侧实际燃料量经过燃料PID控制后，输出右侧给煤机的给煤量的调节信号。本发明有益效果：实现了单侧燃料量的自主调节，改变了传统控制方案在单侧燃料量波动情况发生后燃料调节对另一侧床温的影响。

Valve control of solids in bed with improved reliability

Una caldera de lecho fluidizado circulante que comprende: una cámara de reacción de caldera de lecho fluidizado circulante (1) que comprende paredes laterales y una rejilla de distribución (9) para proporcionar gas fluidizante en la cámara de reacción de caldera de lecho fluidizado circulante; un lecho fluidizado burbujeante en un compartimento que incluye al menos una pared de cerramiento (30); al menos un intercambiador de calor en lecho controlable (3), el intercambiador de calor en lecho que se ubica dentro del compartimento que comprende el lecho fluidizado burbujeante; al menos una válvula no mecánica (40) adaptada para controlar descarga de sólidos desde el lecho fluidizado burbujeante a la cámara de reacción de caldera de lecho fluidizado circulante, comprendiendo la válvula al menos una abertura en la pared de cerramiento, e incluyendo al menos un medio fluidizante controlado independientemente ubicado al menos en uno de corriente arriba y corriente abajo de la abertura; y el al menos un medio fluidizante controlado independientemente (86, 87, 94, 95) conectándose a un medio de suministro de medios de fluidización, el medio fluidizante controlado independientemente adaptado para controlar un caudal de sólidos desde el lecho fluidizado burbujeante a la cámara de reacción de caldera de lecho fluidizado circulante, el medio fluidizante controlado independientemente que se controla por separado de la rejilla de distribución; caracterizado por colectores (92, 93) vinculados al uno o más medios fluidizantes controlados independientemente, los colectores adaptándose para recoger sólidos en el caso de marcha atrás de los sólidos en el medio fluidizante de manera que los sólidos recogidos no obstruyen un suministro del medio de fluidización. A circulating fluidized bed boiler comprising: a circulating fluidized bed boiler reaction chamber (1) comprising side walls and a distribution grid (9) to provide fluidizing gas in the circulating fluidized bed boiler reaction ...

Control of CFB boiler utilizing accumulated char in bed inventory

A boiler control method and system. A BFI (bed fuel inventory) value associated with a boiler can be estimated by detecting data from the boiler utilizing an inferential sensor. The bed fuel inventory value can then be stabilized at a particular value utilizing a feedback controller electrically connected to the inferential sensor, in order to optimize the bed fuel inventory value for varying operating conditions of the boiler, thereby permitting a thermal power associated with the boiler to be increased or decreased faster by respectively increasing or decreasing a primary air supply rate associated with the boiler.

Method of and apparatus for controlling the temperature of a fluidized bed reactor

Method of and apparatus for controlling the temperature of a fluidized bed reactor (10), comprising separator means (16) for separating first solid particles from the fluidized bed reactor; a return duct (30) for returning a first portion of the first solid particles to the fluidized bed reactor; a discharge duct (50) for the discharge of a second portion of the first solid particles and an inlet duct (52) for transferring second solid particles from a second fluidized bed reactor to said fluidized bed reactor, in which the return duct (30) and the inlet duct (52) share a common end 10 portion (54) for transferring a mixture of solid particles, formed of the first portion of the first solid particles and the second solid particles, to the fluidized bed reactor (10). Said apparatus also preferably comprises a fluidized mixing device (58) for mixing the first portion of the solid particles and the second solid particles with each other.

Circulating fluidized bed boiler having two external heat exchanger for hot solids flow

The present invention relates to a circulating fluidized bed boiler (10)comprising a furnace (12), a solids separator (16),a gas seal (52), a first fluidized bed heat exchange chamber (72), and a second fluidized bed heat exchange chamber (74), the first fluidized bed heat exchange chamber (72) being positioned above the second fluidized bed heat exchange chamber (74),wherein the cooled solids are taken from the first heat exchange chamber (72) to the lower portion of the furnace (12), and the second heat exchange chamber (72) is located between the lower ends of the return channels (86) from the first heat exchange chamber (74).

Riser top structure for circulating fluidized bed gasifier

Disclosed is a riser top structure in which a lateral duct (15) for providing a connection between a riser (1) and a cyclone separator (2) comprises an introduction part (16) at the connection with the riser (1), said introduction part (16) having the same cross-sectional area as the riser (1), and a constriction part (17) between the introduction part (16) and the cyclone separator (2), the cross-sectional area of the constriction part (17) steadily decreasing from the introduction part (16) towards the cyclone separator (2) so as to be able to increase the flow speed of combustion gas.

built-in solids control valve with improved reliability

resumo "válvula de controle de sólidos embutidos com confiabilidade aperfeiçoada" uma disposição de válvula não mecânica para uso com aquecedores de lei-to fluidificado circulante (cfb) possui uma câmara de reação cfb e um leito fluidifi-cado borbulhante (bfb) dentro de um recinto na parte inferior da câmara de reação cfb, o bfb contendo um permutador de calor embutido (ibhx). os sólidos fluindo a partir do recinto bfb para a câmara de reação cfb podem ser controlados utilizando-se uma ou mais válvulas não mecânicas. cada válvula não mecânica é controlada independentemente utilizando-se os meios de fluidificação controlados independentemente. a válvula não mecânica possui coletores para coletar os sólidos retornados para dentro dos meios de fluidificação da válvula. os aglomerados são removidos e podem bloquear a válvula. as paredes do canal paralelas à direção do fluxo de sólidos através da abertura de válvula podem ser fornecidas para reduzir a interferência externa com a fluidificação local para manter a funcionalidade adequada da válvula não mecânica.

Fluidized bed monitoring method and device

This fluidized bed monitoring method is for monitoring the state of a fluidized bed in a fluidized bed furnace in which the fluidized bed is formed by fluidization, of a fluid medium filling the lower portion of the furnace, using fluidizing gas blown out from the furnace bottom. The method comprises: defining a segment in the height direction in the fluidized bed; detecting the pressure difference between the upper end level and the lower end level of the segment; obtaining, on the basis of the detected pressure difference, the ratio of a fluidization inhibitory factor which is included in the segment and which reduces the density of the fluidized bed so as to deteriorate the fluidity of the fluidized bed; and monitoring the ratio of the fluidization inhibitory factor during operation of the fluidized bed furnace.

FAST FLUIDIZED FLUIDIZED BED DEVICE WITH SATURATED FLOW OF CIRCULATING SOLIDS

Boiler combustion material-returning device and boiler combustion system with the device

本发明公开了一种锅炉燃烧返料装置以及带有该装置的锅炉燃烧系统，其通过返料装置将部分煤灰返送回锅炉，与煤进行混合，从而降低了燃烧的速度，这样，煤不会在一瞬间就燃烧，另外，煤灰本身是由煤燃烧的产物，因此，不需要引进其他的灰尘杂质，另外，煤灰是从锅炉里出来，其本身具有极高的热量，因此将煤灰返回，一定程度上对其热量进行二次利用，节约了煤的燃烧。选料机构选出相对均匀的煤灰，不让大颗粒进入到锅炉，大颗粒煤灰与煤的接触不均匀，不利于煤的充分燃烧。因此设置选料机构进行控制煤灰大小，另外，流量控制机构能够调整煤与煤灰的比例，进而控制煤的燃烧速度。

INTEGRATED PROCESS FOR THERMAL CONVERSION OF A HEAVY HYDROCARBON CHARGE AND INDIRECT COMBUSTION IN A CHEMICAL OXIDE-REDUCTION LOOP

Procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction L'invention concerne un procédé intégré de conversion thermique d’une charge hydrocarbonée lourde et de combustion indirecte en boucle chimique d'oxydo-réduction pour la production de flux hydrocarbonés. La charge hydrocarbonée lourde (1) est mise en contact avec des particules inertes (2) dans une zone de conversion thermique (100). La conversion thermique en absence de dihydrogène, de vapeur d’eau et de catalyseur, produit un premier effluent gazeux de composés hydrocarbonés (4) et du coke déposé sur les particules inertes (5). Ce dernier est alors brûlé dans une boucle chimique d’oxydo-réduction (200) en présence de particules d’un solide porteur d’oxygène (6). Les particules inertes circulent ainsi entre la zone de conversion thermique (100) et une zone de réduction (300) de la boucle chimique alors que les particules de solide porteur d’oxygène circulent entre les zones d’oxydation (400) et de réduction (300) de la boucle chimique. Figure pour l’abrégé : figure 1

Apparatus for control of the heat transfer produced in a fluidized bed

Apparatus for control of the heat transfer between a circulating bed of solid particles and a heat exchanger (6) located inside a fluidization enclosure (1) supplied with solid particles and connected to a device for recovering (4) and recycling (5) the particles into the fluidized bed. The heat exchange coefficient of the exchanger (6) is adapted at each moment to the heat transfer requirements of the plant by varying in the same sense the concentration of solid particles in the circulating bed, by increasing or reducing the quantity of circulating particles to increase or reduce, respectively, the exchange coefficient to the value required by the demand. The invention is particularly applicable to steam production boilers operating on coal.

Sealpot and method for controlling a solids flow rate therethrough

A sealpot for a combustion power plant includes a downcomer standpipe which receives solids of the combustion power plant, a bed including a first end and a second opposite end, the first end connected to the downcomer standpipe, a discharge standpipe disposed at the second opposite end of the bed, and an orifice plate disposed between the bed and the discharge standpipe separating the discharge standpipe from the bed. The orifice plate includes apertures disposed at a height above the bed which allow transport of fluidized solids and gas through the orifice plate.

Treatment system for removing bed material from a fluidized bed reactor and method of removing bed material from a fluidized bed reactor

The present invention relates to a treatment system (20) for removing bed material of a fluidized bed reactor (10) from the fluidized bed reactor and for cooling the bed material to be removed, which treatment system (20) comprises a treatment chamber (24) in connection with the fluidized bed reactor, which treatment chamber is provided with means (26) for supplying fluidizing gas to the lower portion of the treatment chamber, a heat exchanger system (34) arranged in an internal space formed by the treatment chamber (24), feeding arrangement (36) for bed material, opening on one hand to the treatment chamber and being on the other hand in connection with the fluidized bed reactor; a first discharge connection (32) arranged in the bottom portion of the treatment chamber for removing cooled bed material from the treatment chamber. The feeding arrangement (36) of the bed material opens through at least two different inlet openings (38, 38', 38'') to the reaction chamber (12) of the fluidized bed react or at different horizontal levels. The invention also relates to a corresponding method.

Fluidized bed reactor system

The invention relates to a fluidised bed reactor system comprising one or more fluidised bed reactors (1, 2, 20) for carrying out chemical or physical reactions, at least one reactor thereof being in the form of a rapidly fluidised reactor to be operated as a circulating fluidised bed and comprising, at the upper end, a fluid outlet (5, 6), a particle separator (3, 4), and a particle line (7, 8) connected thereto for the purpose of feeding back separated fluidised bed particles into the same or a further reactor. In at least one rapidly fluidised reactor, one or more flow control devices (18, 21) are provided so as to produce reaction zones (9, 10, 22) that are separate from one another, said invention being characterised in that in order to control the flow conditions into said reaction zones (9, 10, 22), one or snore of these flow control devices (18, 21) is/are specifically adjustable from outside of the system.

Circulating fluidized bed gasification furnace

A circulating fluidized bed gasification furnace comprising a combustion furnace (1), a cyclone dust collector (4) for collecting a circulation medium (5) by introducing combustion gas (3) taken out from the combustion furnace (1), a fluidized bed gasification furnace (8) that forms a fluidized bed (10) by introducing through a downcomer (7) the circulation medium (5) collected by the cyclone dust collector (4) and supplying a gasification agent (9) from below and that gasifys a material (12) by supplying the material (12) to a free board (11), and a circulation channel (14) for returning the circulation medium and not-gasified, non-reacted char in the fluidized bed gasification furnace (8) back to the combustion furnace (1), wherein the lower end of the downcomer (7) connected with the cyclone dust collector (4) is connected with the free board (11) of the fluidized bed gasification furnace (8) through a sealed portion (18), and a material feeder (20) for feeding the material (12) to the circulation medium (5) between the sealed portion (18) and the free board (11) is provided.

A method of and an arrangement for controlling the operation of a fluidized bed boiler

The present invention relates to a method and an arrangement of controlling the operation of a fluidized bed boiler. An object of the invention is to be able to control the amount of solids entering the fluidized bed heat exchange chamber from the internal circulation.In accordance with the present invention the fluidized bed heat exchanger (38) is provided with a specific means (58 –66) for discharging fluidization gas from the fluidized bed heat exchange chamber (46). Advantageously, the specific means also comprises means (68) for controlling the flow of said fluidization gas out of the fluidized bed heat exchange chamber (46).

Loop seal for recycling solids from a cyclone and fluidized bed reactor and method using the same

A loop seal for a fluidized bed reactor comprising a vertical downcomer segment connected to a dipleg for receiving solids particles from the dipleg, a horizontal segment downstream of the downcomer, a riser segment downstream of the horizontal segment, and a downwardly inclined segment downstream of the riser, whereby the solids are entrained to the fluidized bed reactor. An eductor is added to the angled leg to induce the underflow gas from the cyclone; one of the preferred motive fluids to the eductor is the fines from fuel preparation and the carrying gas for the fines. Also provided are a fluidized bed reactor comprising the loop seal, and a method for producing syngas from coal and steam using the same.

Control of CFB boiler utilizing accumulated char in bed inventory

一种锅炉控制方法和系统。与锅炉有关的BFI(床燃料装载)值可以通过检测来自利用推理传感器的锅炉的数据被估算。然后床燃料装载值能利用电连接到推理传感器的反馈控制器被稳定在特定值，以便优化用于改变锅炉运行条件的床燃料装载值，从而允许与锅炉有关的热功率通过分别增加或减少与锅炉有关的初次空气供应率而更快地增加或减小。

METHOD AND INSTALLATION FOR RECYCLING SOLID ENDS IN A FLUIDIZED BED

L'INVENTION A POUR OBJET UN PROCEDE ET UNE INSTALLATION DE RECYCLAGE DES IMBRULES SOLIDES PRODUITS AU COURS D'UNE REACTION EXOTHERMIQUE REALISEE EN LIT FLUIDISE 2 DANS UNE ENCEINTE 1 RELIEE A UN DISPOSITIF 3 DE SEPARATION DES PARTICULES SOLIDES ENTRAINEES AVEC LES FUMEES ET CONTENANT UNE CERTAINE PROPORTION D'IMBRULES, LES PARTICULES RECUPEREES ETANT RECYCLEES DANS LE LIT FLUIDISE 2. SELON L'INVENTION, PENDANT LE FONCTIONNEMENT NORMAL DU LIT FLUIDISE 2 ALIMENTE EN MATIERE COMBUSTIBLE, ON ACCUMULE DANS UN SILO 4 LES PARTICULES SOLIDES RECUPEREES DANS LE DISPOSITIF DE SEPARATION 3 ET PERIODIQUEMENT, ON ARRETE L'ALIMENTATION EN MATIERE COMBUSTIBLE ET L'ON RECYCLE DANS LE LIT FLUIDISE 2 LES PARTICULES ACCUMULEES DANS LE SILO 4 AVEC UN DEBIT REGLE DE TELLE SORTE QUE LA COMBUSTION DES IMBRULES CONTENUS DANS LES PARTICULES RECYCLEES MAINTIENNE LA TEMPERATURE DU LIT FLUIDISE 2 AU NIVEAU VOULU, LA REACTION EXOTHERMIQUE ETANT ENTRETENUE ALTERNATIVEMENT PAR LA COMBUSTION DE LA MATIERE COMBUSTIBLE EN PHASE DE FONCTIONNEMENT NORMAL ET PAR LA COMBUSTION DES IMBRULES EN PHASE DE RECYCLAGE. L'INVENTION S'APPLIQUE SPECIALEMENT AUX CHAUDIERES ALIMENTEES EN CHARBON PULVERISE. THE OBJECT OF THE INVENTION IS A PROCESS AND A PLANT FOR RECYCLING SOLID IMBRULES PRODUCED DURING AN EXOTHERMAL REACTION CARRIED OUT IN A FLUIDIZED BED 2 IN AN ENCLOSURE 1 CONNECTED TO A DEVICE 3 FOR SEPARATING THE SOLID PARTICLES CARRIED OUT WITH THE FUMES AND CONTAINING A CERTAIN PROPORTION OF IMBRULES, THE RECOVERED PARTICLES BEING RECYCLED IN THE FLUIDIZED BED 2. ACCORDING TO THE INVENTION, DURING THE NORMAL OPERATION OF THE FLUIDIZED BED 2 FEEDED WITH COMBUSTIBLE MATERIAL, THE SOLID PARTICLES ARE ACCUMULATED IN A SILO 4 IN THE RECOVERED DEVICE. 3 AND PERIODICALLY, WE STOP THE SUPPLY OF COMBUSTIBLE MATERIALS AND RECYCLE IN THE FLUIDIZED BED 2 THE PARTICLES ACCUMULATED IN SILO 4 WITH A REGULATED FLOW SUCH AS THE COMBUSTION OF THE IMBRULES CONTAINED IN THE PARTICULATES RECYCLED ...

Systems for converting fuel

A system for converting fuel may include a first moving bed reactor, a second reactor, and a non-mechanical valve. The first moving bed reactor may include at least one tapered section and multiple injection gas ports. The multiple injection gas ports may be configured to deliver a fuel to the first moving bed reactor. The first moving bed reactor may be configured to reduce an oxygen carrying material with a fuel by defining a countercurrent flowpath for the fuel relative to the oxygen carrying material. The second reactor may communicate with the first moving bed reactor and may be operable to receive an oxygen source. The second reactor may be configured to regenerate the reduced oxygen carrying material by oxidation.

Method for operating a system for producing bioethanol

本发明涉及一种用于运行用来生产生物乙醇的设备(1)的方法，在所述方法中使生产过程的有机废产物、特别是DGS和DDGS燃烧，将如此获得的有效热又输送给设备(1)本身。燃烧过程在流化床锅炉(2)中发生。从在其中发生燃烧过程的所有室(9，11)中抽走如此多的热量，使得在任何位置都不超过废产物的灰烬的熔融温度、特别是700℃。以这种方式形成细小颗粒状的灰烬，该灰烬主要混入流化床(9)中并且易于清除。有效热一部分从在燃烧时形成的烟气中获得、一部分从为遵守最高温度而从燃烧过程中抽走的热量中获得。

Systems for generating energy using agricultural biofuel

A process comprising, providing an agricultural biofuel to a fluidized bed reactor and combusting the agricultural biofuel to produce heat and/or steam is disclosed. In one embodiment systems for generating energy with agricultural biofuel are provided. In one embodiment, the agricultural biofuel is selected from the group consisting of agricultural crops, crop residues, grain processing facility waste, value-added agricultural facility byproducts, livestock production facility waste, livestock processing facility waste and food processing facility waste. In one embodiment, the heat and/or steam is used to generate electricity. In other embodiments, the heat and/or steam is used to power the grain processing facility, livestock production facility, livestock processing facility or food processing facility. In another embodiment, one or more environmental controls are used. In a particular embodiment, ethanol byproducts are used as the agricultural biofuel.

Circulating fluidized bed-type gasification furnace and fluid medium flow rate control method

A gasification furnace ( 110 ) of a circulation fluidized bed-type gasification furnace ( 100 ) forms a fluid medium into a fluid bed, and produces gasified gas by gasifying an input gasification raw material using heat from the fluid medium. A combustion furnace ( 102 ) heats the fluid medium output from the gasification furnace. A flow rate adjuster ( 106 ) distributes the fluid medium heated in the combustion furnace to the gasification furnace and a buffer section ( 112 ). In this manner, irrespective of the flow rate of the fluid medium in the entire circulation fluidized bed-type gasification furnace ( 100 ), the buffer section ( 112 ) enables the fluid medium to bypass to the combustion furnace. As a result, the flow rate of the fluid medium in the gasification furnace ( 110 ) can be maintained at a desired flow rate.

Heat exchanger with fluidised bed for boiler with circulating fluidised bed, and boiler with circulating fluidised bed, which is equipped with heat exchanger with fluidised bed

FIELD: heating. SUBSTANCE: boiler with circulating fluidised bed, which includes furnace particle separator for external circulation system for hot medium, and heat exchanger located in return channel provided in external circulation system for hot medium. Heat exchanger includes the first and the second heat exchange chambers connected to boiler furnace, the first inlet channel for supply of hot solid particles from particle separator of boiler external circulation system to the first heat exchange chamber which is equipped with the first solid particle flushing devices, the second inlet channel for supply of solid particles to the second heat exchange chamber which is equipped with the second solid particle fluidising devices, the first outlet device for discharging the first portion of cooled solid particles from the first heat exchange chamber to the second inlet channel, and the second outlet device for discharging cooled solid particles from the second heat exchange chamber to furnace. EFFECT: increasing operating and control efficiency of boiler heat exchanger. 7 cl, 3 dwg РОССИЙСКАЯ ФЕДЕРАЦИЯ (19) RU (11) 2 393 386 (13) C1 (51) МПК F23C 10/04 (2006.01) ФЕДЕРАЛЬНАЯ СЛУЖБА ПО ИНТЕЛЛЕКТУАЛЬНОЙ СОБСТВЕННОСТИ, ПАТЕНТАМ И ТОВАРНЫМ ЗНАКАМ (12) ОПИСАНИЕ ИЗОБРЕТЕНИЯ К ПАТЕНТУ (21), (22) Заявка: 2008148570/06, 09.05.2007 (24) Дата начала отсчета срока действия патента: 09.05.2007 (73) Патентообладатель(и): ФОСТЕР ВИЛЕР ЭНЕРГИЯ ОЙ (FI) R U (30) Конвенционный приоритет: 10.05.2006 FI 20065308 (72) Автор(ы): КАУППИНЕН Кари (FI) (45) Опубликовано: 27.06.2010 Бюл. № 18 2 3 9 3 3 8 6 (56) Список документов, цитированных в отчете о поиске: US 5537941 A, 23.07.1996. RU 2107866 C1, 27.03.1998. WO 2004091768 A1, 28.10.2004. US 5095884 A, 17.03.1992. SU 1781509 A1, 15.12.1992. (85) Дата перевода заявки PCT на национальную фазу: 10.12.2008 2 3 9 3 3 8 6 R U (87) Публикация PCT: WO 2007/128883 (15.11.2007) C 1 C 1 (86) Заявка PCT: FI 2007/050264 (09.05.2007) Адрес для переписки: ...

Method of operating an oxycombustion circulating fluidized bed boiler

A method of operating an oxycombustion circulating fluidized bed (CFB) boiler that includes a furnace having a grid at its bottom section, a solid material separator connected to an upper part of the furnace, and an external solid material handling system. Oxidant gas is introduced into the CFB boiler through the grid as fluidizing gas, the fluidizing gas including recirculating flue gas. Fuel material is introduced into the circulating fluidized bed. A sulfur reducing agent including CaCO 3 is introduced into the circulating fluidized bed. Solid material is circulated out of the furnace and provides an external circulation of solid material via the external solid material handling system. The solid material is fluidized in the external solid material handling system by introducing a fluidizing medium including recirculating flue gas into the handling system. A predetermined amount of steam is introduced into the handling system as a component of the fluidizing medium.

Circulating fluidized bed gasification furnace

A circulating fluidized bed gasification furnace has a combustion furnace 1 , a cyclone collector 4 to which a combustion exhaust gas 3 from the combustion furnace 1 is introduced to collect a circulating medium 5 , a fluidized bed gasification furnace 8 for formation of a fluidized bed 10 by introducing the circulating medium 5 collected in the cyclone collector 4 through a downcomer 7 and by supplying a gasification agent 9 from below and for gasification of a raw material 12 by supplying the same to a freeboard 11 , and a circulation flow passage 14 for return of the circulating medium and unreacted char not gasified in the gasification furnace 8 to the combustion furnace 1 . The downcomer 7 connected to the collector 4 has a lower end connected through a sealer 18 to the freeboard 11 in the gasification furnace 8 . A raw material supply unit 20 is arranged to supply the raw material 12 to the circulating medium 5 between the sealer 18 and the freeboard 11.

Process and installation for recycling solid unburnt materials in a fluidized bed

Device and system for controlling the temperature in a fluidized bed boiler

The invention concerns an arrangement and a system for the determination of the temperature in a combustion boiler (1) with fluidised bed (10). At least one thermoelectric element (25) is integrated with the air nozzle (4) in the form of a rod-shaped body that is fixed arranged at its first end to the air nozzle and that extends vertically upwards into the bed from the air nozzle with thermoelectric element arranged at a distance from the air nozzle. It is possible in this manner to obtain a measurement arrangement and system for the detection of the temperature of the bed that is less exposed to the eroding environment in the fluidised bed.

In-bed solids control valve with improved reliability

Method for operating a plant for the production of bioethanol

Es wird ein Verfahren zum Betreiben einer Anlage (1) zur Herstellung von Bioethanol beschrieben, bei dem organische Abfallprodukte des Herstellungsprozesses, insbesondere DGS und DDGS, verbrannt und die so gewonnene Nutzwärme der Anlage (1) selbst wieder zugeführt wird. Der Verbrennungsprozess findet in einem Wirbelschichtofen (2) statt. Allen Räumen (9, 11), in denen der Verbrennungsprozess abläuft, wird so viel Wärme entzogen, dass an keiner Stelle die Schmelztemperatur der Asche des Abfallproduktes, insbesondere 70°C, überschritten wird. Auf diese Weise bildet sich eine feinkörnige Asche, die sich überwiegend in die Wirbelschicht (9) einmischt und leicht zu entsorgen ist. Die Nutzwärme wird zum Teil aus dem bei der Verbrennung entstehendem Rauchgas und zum Teil aus der dem Verbrennungsprozess zur Einhaltung der Maximaltemperatur entzogenen Wärme gewonnen. A process for operating a plant (1) for the production of bioethanol is described, in which organic waste products of the production process, in particular DGS and DDGS, are burned and the useful heat thus obtained is fed back to the plant (1) itself. The combustion process takes place in a fluidized bed furnace (2). All rooms (9, 11) in which the combustion process takes place, so much heat is withdrawn that at no point the melting temperature of the ash of the waste product, in particular 70 ° C, is exceeded. In this way, a fine-grained ash forms, which mixes predominantly in the fluidized bed (9) and is easy to dispose of. The useful heat is recovered in part from the flue gas produced during combustion and partly from the heat extracted from the combustion process to maintain the maximum temperature.

Fluidizing medium for fluidized bed

提供一种流动性优异的有用的流化床用流化介质，其可作为使用生物质材料、煤类作为燃料的流化床炉中的流化介质优选使用。另外，提供一种耐久性优异的有用的流化床用流化介质，其难以形成颗粒之间的聚集物且不易碎裂。作为用于使包含生物质材料和/或煤类的燃料燃烧或气化的流化床炉中的流化床用流化介质，使用包含人工制造的球状耐火颗粒的材料，所述耐火颗粒具有包含40重量％以上的Al 2 O 3 和60重量％以下的SiO 2 的化学组成，且该材料的表观孔隙率为5％以下，并且重复3次与所述燃料共存下的900℃×2小时的加热处理试验后的聚集颗粒的重量比率为20％以下。

A CIRCULATING FLUID BED BOILER WITH AN RING VALVE HEAT EXCHANGER

Method for managing grain size of circulating fluidized bed and apparatus for managing grain size using the same

본 발명은 순환유동층의 입도 관리 방법 및 이를 이용한 입도 관리 장치에 관한 것으로, 본 발명의 일실시예에 따른 순환유동층의 입도 관리 방법은, 순환유동층의 연소로 내의 유동매체량을 일정한 상태로 유지시키는 단계; 상기 연소로 내의 농후상과 희박상의 경계면인 전이영역에서의 제1 압력 측정 지점과 제2 압력 측정 지점의 압력을 측정하여 전이영역 측정 차압을 확인하는 단계; 및 상기 전이영역 측정 차압과 전이영역 기준 차압을 비교함에 따라, 유동매체 배출 및 층물질 주입을 동시에 진행하여 상기 연소로 내의 유동매체의 입도를 관리하는 단계;를 포함한다. The present invention relates to a particle size management method of a circulating fluidized bed and a particle size management apparatus using the same. The particle size management method of a circulating fluidized bed according to an embodiment of the present invention is to maintain the amount of fluid in a combustion furnace of the circulating fluidized bed in a constant state. step; Measuring pressures of a first pressure measurement point and a second pressure measurement point in the transition region, which is an interface between the rich phase and the lean phase in the combustion furnace, and confirming a measured differential pressure in the transition region; And managing the particle size of the fluid medium in the combustion furnace by simultaneously discharging the fluid medium and injecting the layer material by comparing the measured differential pressure in the transition region with the reference differential pressure in the transition region.

The method and apparatus of control stream of solids

描述了控制流化床槽中的流化床中料位和/或总量的方法和装置，其中固体料流经由下料器从所述流化床槽中移出，所述固体料流通过供应输送气体流在所述下料器的底部流态化并穿过从所述下料器分叉的提升管输送到顶部。穿过所述提升管输送的固体料流的量因所述输送气体的变动供应而改变，其中将所述固体槽中的固体料位或固体总量用作控制变量且将所述输送气体的体积流量用作控制线路的执行变量。

Sealpot and method for controlling a solids flow rate therethrough

POWER PLANT WITH COMBUSTION OF A FUEL IN A FLUIDIZED BED

A power plant with a combustion chamber in which a fuel in burned in a fluidized bed of a particular material, comprises a storage container for the bed material which, upon a load reduction, is removed from the combustion chamber. The storage container is provided with a sieve or a grate which prevents slag lumps formed in the bed material from penetrating into a conduit for the return of the bed material to the combustion chamber. A tube projecting into the storage container forms the sieve.

Control valve and control valve system for controlling solids flow, methods of manufacture thereof and articles comprising the same

Disclosed herein is a solids flow control valve comprising a standpipe; a shoe; and a transport pipe; wherein the standpipe is in operative communication with the shoe and lies upstream of the shoe; the standpipe comprising a first end and a second end, where the first end is in contact with a source that contains disposable solids and the second end is in fluid contact with the shoe; the shoe being operative to restrict the flow of the disposable solids; the transport pipe being disposed downstream of the shoe to receive and transport the solids from the shoe.

Method and device for controlling bed height of fluidized bed gasification furnace in gasification facility

A fluid medium separated by a medium separator 8 is supplied to a gasification furnace 2 into which a raw material is also charged. The fluid medium is extracted through any of fluid medium extraction ports 40 a , 40 b and 40 c connected to a gasification furnace 2 at vertical intervals, and is guided to a combustion furnace 5 . Thus, a bed height and a retention time of the fluid medium in the gasification furnace 2 are separately controlled.

In-bed solids control valve with improved reliability

一种与循环流化床(CFB)一起使用的非机械阀装置，具有CFB反应室和位于该CFB反应室下部中的围封体内的鼓泡流化床(BFB)，该BFB含有床内热交换器(IBHX)。从BFB围封体流到CFB反应室的固体可以通过一个或多个非机械阀而得到控制。通过独立受控流化装置来独立控制每个非机械阀。非机械阀具有收集器以将回筛到所述阀的流化装置中的固体进行收集。去除可能堵塞该阀的团块。平行于固体流过阀开口的方向的通道壁可以设置成减少与局部流化的外部干涉，以维持非机械阀的合适功能。

Method and plant for fluidised layer temperature adjustment

Изобретение относится к регулированию температуры в реакторе псевдоожиженного слоя. Реакторная система включает пиролизер с псевдоожиженным слоем, реактор сжигания с псевдоожиженным слоем и конструкцию для регулирования температуры в пиролизере. Конструкция имеет сепарационное средство, канал возврата, канал выгрузки и входной канал. Канал возврата и входной канал совместно имеют общую концевую часть для передачи смеси твердых частиц в пиролизер, причем смесь образована в аппарате смешения с псевдоожижением, находящимся в соединении с входным каналом и каналом возврата. Способ регулирования температуры пиролизера, выполненного в соединении с реактором сжигания, заключается в том, что отделяют первые твердые частицы от пиролизера, переносят первую часть первых твердых частиц по каналу возврата обратно в пиролизер, удаляют вторую часть первых твердых частиц и переносят вторые твердые частицы по входному каналу из реактора сжигания в пиролизер, первую часть первых твердых частиц и вторые твердые частицы смешивают и переносят по общей концевой части канала возврата и входному каналу в пиролизер. Изобретение обеспечивает эффективный способ быстрого и точного регулирования температуры в реакторе. 2 н. и 20 з.п. ф-лы, 1 ил.

SYSTEM FOR CONTROLLING A QUANTITY OF PARTICLES CIRCULATING IN A FLUIDIZED CIRCULATION MILK OVEN

La presente tiene como objetivo ajustar arbitrariamente una cantidad de partículas que han de circular sin cambiar la velocidad de flujo de un agente de gasificacion para mejorar de este modo la eficacia de gasificacion en un horno de gasificacionde lecho fluidizado. El horno de gasificacion de lecho fluidizado 107 comprende una primera y segunda cámara 113 y 114 comunicadas entre sí en un lecho fluidizado 105. Las partículas calientes 102 separadas en el separador 104 y la materia prima Mse introducen en la primera cámara 113. Las partículas 102 introducidas desde la primera cámara 113 por el interior del lecho fluidizado 105 hacia la segunda cámara 114 se abastecen por rebalse al horno de combustion de lecho fluidizado 100. Seprovee un primer controlador de presion 121 para controlar el medio de induccion del gas resultante 116 de manera que la presion en la primera cámara 113 se mantenga a la presion preestablecida 120; y se provee un segundo controlador de presion 124para controlar el medio de induccion del gas de salida 118 de manera que la diferencia de presion en la primera y segunda cámara 113 y 114 sea igual a la presion diferencial preestablecida 123, de manera se controle la altura del lecho fluidizado105 en la primera cámara 113 a fin de controlar la cantidad de partículas 102 que han de circular. The present objective is to arbitrarily adjust an amount of particles that have to circulate without changing the flow rate of a gasification agent to thereby improve the gasification efficiency in a fluidized bed gasification furnace. The fluidized bed gasification furnace 107 comprises a first and second chamber 113 and 114 communicated with each other in a fluidized bed 105. The hot particles 102 separated in the separator 104 and the raw material M are introduced into the first chamber 113. The particles 102 introduced from the first chamber 113 through the interior of the fluidized bed 105 to the second chamber 114, they are supplied by overflowing to the ...

Sealpot and method for controlling a solids flow rate therethrough

A sealpot (100) for a combustion power plant includes a downcomer standpipe (15) which receives solids of the combustion power plant, a bed (20) including a first end and a second opposite end, the first end connected to the downcomer standpipe, a discharge standpipe (30) disposed at the second opposite end of the bed, and an orifice plate (110) disposed between the bed and the discharge standpipe separating the discharge standpipe from the bed. The orifice plate includes apertures (210,220) disposed at a height above the bed which allow transport of fluidized solids and gas through the orifice plate.

METHOD AND INSTALLATION FOR REGULATING THE TEMPERATURE OF A PSEUDO-LIQUIDED LAYER

1. Реакторная система, включающая пиролизер (12) с псевдоожиженным слоем, реактор (44) сжигания с псевдоожиженным слоем и конструкцию для регулирования температуры в пиролизере псевдоожиженным слоем, включающая ! сепарационное средство (16) для отделения первых твердых частиц от пиролизера с псевдоожиженным слоем; ! канал (30) возврата для возврата первой части первых твердых частиц в пиролизер с псевдоожиженным слоем; ! канал (50) выгрузки для удаления второй части первых твердых частиц; и ! входной канал (52) для переноса вторых твердых частиц из реактора (44) сжигания с псевдоожиженным слоем в пиролизер с псевдоожиженным слоем, ! отличающийся тем, что канал (30) возврата и входной канал (52) совместно имеют общую концевую часть (54) для передачи смеси твердых частиц, образованной первой частью первых твердых частиц и вторыми частицами, в пиролизер (10) с псевдоожиженным слоем, причем смесь образована в аппарате (58) смешения с псевдоожижением, находящимся в соединении с входным каналом (52) и каналом (30) возврата. ! 2. Реакторная система по п. 1, отличающаяся тем, что канал (50) выгрузки соединен для того, чтобы проводить вторую часть первых твердых частиц в реактор (44) сжигания с псевдоожиженным слоем. ! 3. Реакторная система по п. 1, отличающаяся тем, что канал (30) содержит первое средство (34) регулирования для регулирования массового расхода первой части первых твердых частиц. ! 4. Реакторная система по п. 1, отличающаяся тем, что канал (50) выгрузки содержит второе средство (40) регулирования для регулирования массового расхода второй части первых твердых частиц. ! 5. Реакторная система по п. 1, отличающаяся тем, что входной канал (52) содержит

Fluidized bed heat exchanger with control to respond to changes in demand

SISTEMA DE COMBUSTION DOTADO DE UN MEDIO QUE DEFINE UN LECHO FLUIDIFICADO EN EL QUE SE PRODUCE LA COMBUSTION. INCLUYE UN ALIMENTADOR DE COMBUSTION (21) Y UN ALIMENTADOR DE MATERIAL DESMENUZADO NO COMBUSTIBLE (23). EL ALIMENTADOR DE COMBUSTIBLE COMPRENDE UN MEDIO DE CONTROL PARA VARIAR EL FLUJO DE COMBUSTIBLE EN EL LECHO DE ACUERDO CON UNA SEÑAL DE DEMANDA DE CARGA PARA LA SALIDA DE CALOR DEL LECHO. EL ALIMENTADOR DE MATERIAL DESMENUZADO TAMBIEN POSEE UN SEGUNDO MEDIO DE CONTROL PARA VARIAR EL RITMO DE FLUJO DEL MATERIAL DESMENUZADO DE ACUERDO CON LAS VARIACIONES EN LA SEÑAL DE DEMANDA DE CAR

Method and device for boiling bed flow characteristics measuring in fire chamber

FIELD: heating, fuel. SUBSTANCE: invention relates to power engineering. Method of boiling bed flow characteristics measuring in boiler fire chamber with circulating boiling bed consists in the supply of exhaust gases to boiling bed separator. The separated material is supplied to the external recirculation unit through circulation pipe and returned to the boiler. Besides the material is subject to fluidisation by fluidising air. When the supply of fluidising air to the external recirculation unit is terminated, the time is measured, which is required for boiling bed in circulation pipe achieving the given top level from the low initial level. Based of the above mentioned time and accumulated volume of boiling bed material in circulation pipe, the boiling bed material flow rate is defined taking into account the inner diameter of circulation pipe. Light fluxes are directed across the circulation pipe at the initial low and top levels. The time is measured by timer, which is switched on when the boiling bed material accumulated in the circulation pipe crosses the light flux being on the lower initial level, and switched off when the boiling bed material accumulated in the circulation pipe crosses the light flux being on the initial top level. The light fluxes directed crosswise circulation pipe at low and top initial levels, prevent closing by boiling bed material penetrating circulation pipe. EFFECT: measuring of circulating boiling bed material volume in fire chamber with circulating boiling bed. 6 cl, 3 dwg

Process and apparatus for recycling waste materials containing valuable metals

本發明有關用於在流體化床爐子(100)中回收含有貴金屬之廢棄材料的方法，包含啟動流體化床爐子(100)之階段I；及連續再處理含有貴金屬的廢棄材料之階段II，其特徵在於此流體化床爐子(100)在含有貴金屬之廢棄材料的連續再處理之階段II期間自熱地操作，並經由流體化床爐子(100)的填充位準及材料經過此爐子之流速來調節製程溫度。本發明更提供包含流體化床爐子(100)的設備，用於在連續自熱製程中回收含有貴金屬之廢棄材料。

Method for controlling the level of a fluidised bed and circuitry for working the method

Device for varying the height of a bed in a fluidized combustion chamber

A device for varying the height of a bed in a fluidized combustion chamber inside a pressurized housing. Bed material is supplied to the chamber from hoppers or returned back to the hoppers from the chamber through a supply line. The supply line connects the chamber and the hoppers. The hoppers have means of increasing or decreasing the pressure. To improve the means of both increasing and decreasing pressure in the known device and of cleaning the gas that enters into contact with the material in the hopper, each hopper contains a hot-gas filter that gas can flow through in two directions and each hopper communicates above the filter with a gas connection that can be maintained at either a higher or a lower pressure than the fluidized combustion chamber.

Control method for height of fluidized bed and device thereof

(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。

Circulating fluidized bed gasification furnace

A circulating fluidized bed gasification furnace comprising a combustion furnace (1), a cyclone dust collector (4) for collecting a circulation medium (5) by introducing combustion gas (3) taken out from the combustion furnace (1), a fluidized bed gasification furnace (8) that forms a fluidized bed (10) by introducing through a downcomer (7) the circulation medium (5) collected by the cyclone dust collector (4) and supplying a gasification agent (9) from below and that gasifys a material (12) by supplying the material (12) to a free board (11), and a circulation channel (14) for returning the circulation medium and not-gasified, non-reacted char in the fluidized bed gasification furnace (8) back to the combustion furnace (1), wherein the lower end of the downcomer (7) connected with the cyclone dust collector (4) is connected with the free board (11) of the fluidized bed gasification furnace (8) through a sealed portion (18), and a material feeder (20) for feeding the material (12) to the circulation medium (5) between the sealed portion (18) and the free board (11) is provided.

Hermetically sealed can and the method for controlling the solid flow speed by hermetically sealed can

一种用于燃烧发电装置的密封罐(100)包括：下导竖管(15)，其接收所述燃烧发电装置的固体；具有第一端和第二相对端的床(20)，所述第一端连接到所述下导竖管；排放竖管(30)，其安置于所述床的所述第二相对端处；以及孔板(110)，其安置于所述床与所述排放竖管之间，从而使所述排放竖管与所述床分离。所述孔板包括安置在高于所述床的高度处的孔口(210，220)，所述孔口允许穿过所述孔板输送流化固体和气体。