But aluminium base board of LED that multi -angle is shone

The utility model discloses a but aluminium base board of LED that multi -angle is shone, the aluminium base board unit of LED including a plurality of is transversely arranged in proper order all is equipped with LED lamp pearl on the aluminium base board unit of every LED, be equipped with the microconnection portion that can buckle between the aluminium base board unit of two adjacent LED. The utility model discloses in be equipped with the microconnection portion that can buckle between the aluminium base board unit of two adjacent LED, microconnection portion through to between adjacent two the aluminium base board units of LED buckles, the aluminium base board of LED that can buckle the aluminium base board unit of LED to circularize, the LED lamp pearl of setting on the aluminium base board unit of every LED can be to shining around the aluminium base board of annular LED, the multi -angle that can realize the aluminium base board of LED is like this shone, the wrinkle and the break ...

Catalysis conversion method for producing aromatic compounds

The invention relates to a catalysis conversion method for producing aromatic compounds. According to the method, poor quality heavy cycle oil and residual oil are subjected to a hydrotreating reaction in the presence of hydrogen gas and a hydrogenation catalyst, and the reaction products are separated to obtain gas, naphtha, hydrogenated diesel oil and hydrogenated residue oil, wherein the hydrogenated diesel oil enters a catalysis cracking device and is subjected to a cracking reaction in the presence of a catalysis cracking catalyst, the reaction products are separated to obtain dry gas, liquefied gas, catalytic gasoline containing rich benzene, toluene and xylene, catalytic light diesel oil, distillates with a distillation range of 250-450 DEG C, and an oil slurry, and the distillates with the distillation range of 250-450 DEG C are conveyed to a residue oil hydrotreating device so as to be recycled. According to the present invention, the residue oil hydrogenation condition is completely ...

Hydrotreatment method of deep vacuum distillation wax oil

The invention relates to a hydrotreatment method of deep vacuum distillation wax oil. The mixture of raw oil and hydrogen passes through two hydrogenation reaction zones in sequence, wherein a hydrogenation protective agent and a hydrogenation demetalization deasphaltenizing agent are filled in the first hydrogenation reaction zone, and a hydrogenation desulfurizing agent and a hydrogenation denitrification desulfurizing agent are filled in the second hydrogenation reaction zone. Reaction products are cooled and separated to obtain refined heavy fraction oil, and the refined heavy fraction oil is a high quality raw material for catalytic cracking. In the invention, the raw oil has strong adaptability and can be used for processing deep vacuum distillation wax oil with high sulphur content, high nitrogen content, high metal and high asphaltene content and mixed oil thereof, and moreover, the device has long running period.

Coal tar hydrogenating modified method by two-stage method

The invention discloses a two-stage method coal tar hydro-upgrading method. Coal tar is subject to the atmospheric distillation and/or the reduced pressure distillation and is cut into coal tar light cut and coal tar heavy cut; after the coal tar light cut and optional distillate oil are mixed with hydrogen, the mixture enters a first hydrogeneration reaction zone and performs the contact reaction with hydrorefining catalyst; gas phase impurities of a reaction effluent is removed through an intermediate flash distillation column or a high-pressure stripping tower, and then the reaction effluent enters a second hydrogeneration reaction zone to perform the contact reaction with the hydro-upgrading catalyst or the hydrocracking catalyst; and the obtained reaction effluent is cooled, separated and fractionated to produce diesel fraction and naphtha cut. The invention provides a clean and effective coal tar processing and utilizing method, the coal tar light cut is hydro-upgraded to produce ...

Method for producing solvent oil or blended components thereof

The invention discloses a method for producing solvent oil or blended components thereof. Fischer-Tropsch synthetic oil is mixed with direct coal liquefaction oil to obtain mixed oil; and the mixed oil is subjected to hydrofining, hydrocracking and fractionation to obtain the solvent oil or the blended components thereof. The solvent oil fraction obtained by hydrotreating the direct coal liquefaction oil individually cannot meet the national standard requirement on solvent oil; the direct coal liquefaction oil is mixed with the Fischer-Tropsch synthetic oil for hydrogenation modification to obtain a product, and the obtained product is subjected to fractionation so as to produce No.120 solvent oil or No.200 solvent oil; therefore, a way for preparing the solvent oil from non-oil resource is widened.

Hydrotreatment-catalytic cracking combination process method

Provided is a hydrotreatment-catalytic cracking combination process method. Wax oil and catalytic cracking circulation oil go to a hydrotreatment reaction zone together, and are subjected to reactions of hydrodemetallization, hydrodesulfurization, hydrodenitrification, aromatic hydrogenation saturation and the like in the presence of hydrogen and hydrogenation catalysts. The obtained hydrogenated tail oil goes to a catalytic cracking device, a cracking reaction is carried out in the presence of catalytic cracking catalysts. Dry gases, liquefied gases, catalytic cracking gasoline, catalytic cracking light diesel oil, catalytic cracking circulation oil and slurry oil are obtained after separation, the catalytic cracking light diesel oil is subjected to self-circulation in the catalytic cracking device and the catalytic cracking circulation oil is circulated to the hydrotreatment reaction zone. The method can raise yield and quality of gasoline products greatly.

Hydrogenation method for producing high grade diesel oil and high grade reforming raw material

A hydrogenation method for producing high-quality diesel oil and high-quality reforming materials comprises the following steps of: mixing diesel oil and/or a light wax oil material with hydrogen gas, and sequentially contact-reacting with a hydrorefining catalyst and a hydrocracking catalyst without middle separation, cooling the reaction result, and separating to obtain a light naphtha fraction, a heavy naphtha fraction, a kerosene fraction, a diesel oil fraction and a tail oil fraction, wherein the kerosene fraction and/or the tail oil fraction can be directly extracted or partially or completely recycled back to the reaction system. By adopting single-stage once-through process and a non-noble metal catalyst, the invention can produce the reforming materials with high aromatic content and the diesel oil fraction with high cetane number, wherein the yield of the reforming material is larger than 20wt%, and the cetane number of the diesel oil fraction can be improved by more than 15 units ...

Hydrogenation modification method of distillate oil

A hydrogenation/modification method of distillate oil comprises the following steps: mixing a raw material oil with hydrogen, contacting with a hydrogenation/modification catalyst in a first hydrogenation reaction area to obtain a reaction product, directly feeding the reaction product into a second hydrogenation reaction area without separation, reacting in the presence of a hydro-refining catalyst to obtain a reaction product in the second hydrogenation reaction area, cooling the reaction product in the second hydrogenation reaction area, separating, and fractionally distilling to obtain diesel fraction and naphtha fraction, wherein the hydrogenation/modification catalyst contains silicon oxide-aluminum oxide, Y-zeolite, aluminum oxide, at least one metal component selected from the VIII group and at least one metal component selected from the VIB group. The method provided by the invention can modify poor catalytic cracking diesel with high contents of sulfur, nitrogen and aromatics ...

Catalyst with hydrogenation catalysis effect, preparation method and application of catalyst and hydroisomerization method

The invention provides a catalyst with a hydrogenation catalysis effect as well as a preparation method and application of the catalyst. The preparation method comprises the steps of dipping a formed porous support by using a water solution, wherein the water solution contains at least one compound containing VIII family metal elements, at least one compound containing VIB family metal elements and a cosolvent or not; carrying out hydrothermal treatment on a mixture in a sealed reactor at the pressure of P0+delta P, wherein the mixture is obtained through dipping, P0 is pressure generated in the hydrothermal treatment by the formed porous support, the compound containing the VIII family metal elements, the compound containing the VIB family metal elements, the cosolvent or not and water in the water solution, and delta P is 0.05-15MPa; carrying out solid-liquid separation on the mixture, and drying the obtained solid phase, wherein the mixture is obtained through the hydrothermal treatment ...

Hydrogenation method for producing good quality catalytic cracking material

The invention relates to a hydrogenation method for high- quality catalytic cracking material. It comprises: carrying out hydrogenation and modifying reaction for mixture of raw oil and hydrogen gas in hydrogenation preservative, any hydrogenation demetalation catalyst and hydrogenation treating catalyst in turn; and the filling volumetic percentage of mentioned preservative and catalyst are 2- 15%, 0- 30% and 55-95%, cooling reactant and separating and getting a large amount of refined gas oil fraction, part of low-sulphur diesel fraction and little amount of benzine naphtha fraction, and therefined gas oil fraction is the catalytic cracking material. The invention can prolong the operation cycle for device under high percentage of desulfurization, the activity of employed catalyst is high, and the rational packing method ensures better catalyst activity, and reduces production cost. The invention is characterized by simple process, low operation pressure, low device investment and operation ...

Hydrogenization method for producing high-value product by catalytic cracking diesel oil

The invention provides a hydrogenization method for producing a high-value product by catalytic cracking diesel. The hydrogenization method comprises the following steps: diesel raw materials are subjected to hydro-refining and hydrocracking in sequence, a reaction product is subjected to fractionation to obtain light naphtha fractions, gasoline fractions, recycle fractions and diesel fractions, when the content of total aromatics in the recycle fractions is more than 70 mass percent and the content of mononuclear aromatics in the recycle fractions is more than 60 mass percent, the recycle fractions return to a hydro-refining reactor inlet or a raw oil buffer tank, and when the content of total aromatics in the recycle fractions is lower than 70 mass percent, 20-80 mass percent of recycle fractions are mixed with the diesel fractions to produce a diesel product, and the rest of recycle fractions return to the hydro-refining reactor inlet or the raw oil buffer tank. Through the adoption ...

Method for producing fine-quality diesel oil blending component by using waste plastic pyrolysis oil

Hydrogenation for producing high-bioctyl-value and low-freezing-point diesel oil

Collecting blocking arm device

The utility model relates to a material collecting blocking arm device which is used for collecting circuit board laminations and preventing the circuit board laminations from dislocation and slipping and is provided with a bottom plate, a blocking rod, a frame rod, a first groove and a second groove, the blocking rod is perpendicular to the first groove and penetrates through a top opening groove to enter a groove cavity, and a roller bead is arranged at the bottom of the blocking rod. The diameter of the roller ball is larger than the width of the top open groove, the roller ball is arranged in the groove cavity and can slide in the first groove, the frame rod is provided with a fastening hole, the left end of the frame rod is fixedly connected with the top of the blocking rod, a fastening nut is arranged in the second groove, and a fastening screw is inserted into the fastening hole of the frame rod. And the fastening screw penetrates through the fastening hole and is fixedly connected ...

Hydrogenation method used for direct production of low-condensation point lubricant base oil

The invention discloses a hydrogenation method used for direct production of low-condensation point lubricant base oil. The hydrogenation method comprises following methods, raw oil and hydrogen are mixed, and an obtained mixture is delivered into a hydrogenation refining reactor and a hydrocracking reactor successively, and is contacted with a hydrocracking catalyst for reaction; H2S of a reaction effluent of the hydrocracking reactor is removed using a high-pressure stripping tower, and then the reaction effluent is delivered into a post-refining reactor, and is contacted with a precious metal post-hydrogenation refining catalyst for reaction, wherein reaction temperature of the post-refining reactor is 50 to 200 DEG C lower than that of the hydrocracking reactor; and hydrogen-rich gas, naphtha cut fractions, middle fraction oil and tail oil cur fractions are obtained via separation and fractionation of a post-refining reactor effluent. According to the hydrogenation method, the lubricant ...

Hydrotreating catalyst and application thereof

The invention discloses a hydrotreating catalyst and application thereof. The catalyst contains a carrier, at least one metal component selected from VIII group and at least one metal component selected from VIB group, wherein the carrier contains silicon oxide-aluminum oxide. The catalyst is characterized in that: the silicon oxide-aluminum oxide is obtained by roasting a composite of boehmite and a silicon compound-containing composition, wherein the boehmite comprises at least one boehmite P1, wherein n is more than or equal to 1.1 and less than or equal to 2.5. n is equal to D(031)/D(120), wherein the D(031) represents the crystalline grain size of a crystal face represented by the 031 peak in an XRD spectrogram of boehmite grains; the D(120) represents the crystalline grain size of the crystal face represented by the 120 peak in the XRD spectrogram of the boehmite grains; the 031 peak is the peak of which the 2 theta is 34 to 43 degrees in the XRD spectrogram; and the 120 peak isthe ...

Can satisfy aluminium base board paster of LED of different wattage demands

The utility model discloses a can satisfy aluminium base board paster of LED of different wattage demands, a serial communication port, including a plurality of paster unit, two adjacent paster units pass through the separable microconnection of microconnection portion and together, are equipped with a plurality of lamp pearl position on every paster unit. The utility model discloses can make up the paster unit of different quantity according to production and customer's needs, be equipped with a plurality of lamp pearl position on every paster unit, can be equipped with the lamp pearl of different quantity according to production and customer's needs on lamp pearl position, can satisfy different wattage demands, so need not change at the circuit to the product, as long as the quantity through increasing or reduce the lamp pearl, just can realize changing the demand of product difference wattages.

Process for improving cetane number of diesel oil and reducing aromatic hydrocarbon of diesel oil simultaneously

The invention provides a process for improving cetane number of diesel oil and reducing aromatic hydrocarbon of diesel oil simultaneously which comprises, charging the diesel raw material and hydrogen gas into a first reactor, contacting non-noble metal hydrogenation catalyst, charging the reaction effluent from the first reactor into a second reactor, contacting noble metal hydrodealkylation catalyst, isolating the reaction effluent from the second reactor to obtain the diesel product.

Catalysis conversion method for producing high octane number gasoline

The invention relates to a catalysis conversion method for producing high octane number gasoline. According to the method, poor quality heavy cycle oil and residual oil are subjected to a hydrotreating reaction in the presence of hydrogen gas and a hydrogenation catalyst, and the reaction products are separated to obtain gas, naphtha, hydrogenated diesel oil and hydrogenated residue oil, wherein the hydrogenated diesel oil enters a catalysis cracking device and is subjected to a cracking reaction in the presence of a macroporous zeolite-containing catalysis cracking catalyst, the reaction products are separated to obtain dry gas, liquefied gas, gasoline, catalytic light diesel oil, distillates with a distillation range of 250-450 DEG C, and an oil slurry, and the distillates with the distillation range of 250-450 DEG C are conveyed to a residue oil hydrotreating device so as to be recycled. According to the present invention, the residue oil hydrogenation condition is completely utilized ...

Combination method for raising yields of high-value products

Provided is a combination method for raising yields of high-value products. A wax oil raw material goes to a hydrotreatment reaction zone, and is subjected to reactions of hydrodesulfurization, hydrodenitrification, aromatic hydrogenation saturation, hydrodemetallization and the like under action of hydrogenation catalysts. The obtained hydrogenated oil is subjected to separation and gas stripping. Both the obtained hydrogenated diesel oil fraction and hydrogenated wax oil fraction go to a catalytic cracking unit, a cracking reaction is carried out in the presence of catalytic cracking catalysts, gases, catalytic gasoline, light catalytic diesel oil, heavy catalytic diesel oil and catalytic circulation oil are obtained after fractionation, and the heavy catalytic diesel oil and the catalytic circulation oil are mixed and recycled back to the hydrotreatment reaction zone. Through the method, yields of high-value products of catalytic gasoline and the like can be raised, and yields of low-value ...

Hydrogenation method for producing diesel oil with low condensation point and lubricant basic oil

The invention discloses a hydrogenation method for producing diesel oil with a low condensation point and lubricant basic oil. The method comprises the following steps: mixing raw material oil with hydrogen gas, making the mixture orderly go through a first hydrogenation reaction zone and a second hydrogenation reaction zone, subjecting the reaction product which flows out from the second hydrogenation reaction zone to a heat transfer treatment, then transporting the reaction product to a third hydrogenation reaction zone, and subjecting the reaction product which flows out from the third hydrogenation reaction zone to processes of separation and fractionation so as to obtain the following components: gas rich in hydrogen, a light naphtha fraction, a heavy naphtha fraction, middle distillate, and a tail oil fraction; wherein the reaction temperature of the third hydrogenation reaction zone is 50 to 200 DEG C lower than that of the second hydrogenation reaction zone. In this method, three ...

Method for preparing clean diesel and product thereof

The invention discloses a method for preparing clean diesel and a product thereof. In the existence of hydrogen, the mixed raw material of coal-prepared diesel fraction and vegetable oil and/or animal fat is contacted with hydrotreating catalyst for hydrotreating reaction, and the clean diesel product can be obtained through cooling, separating and fractionating the reaction effluent, wherein the mixed raw material is used as reference, and the coal-prepared diesel fraction accounts for 1-99% by mass. According to the method, the clean diesel product is prepared by taking the mixture of the diesel fraction obtained by direct coal liquefaction diesel including coal tar, the renewable vegetable oil and the animal fat as the raw material, thereby overcoming the defects of high aromatics content of the raw material, high reaction severity, high hydrogen consumption and short service life of the catalyst during independent hydrogenation of the direct coal liquefaction diesel and/or the coal ...

Hydrogenation method for producing high-quality low-sulfur diesel fraction

The invention relates to a hydrogenation method for producing high-quality low-sulfur diesel fraction. The method sets hydrofining, hydrocracking and hydrofining reaction areas, wherein hydrocarbon material I with an end point less than 540 DEG C sequentially enters and reacts in the first hydrogenation reaction area and the second hydrogenation reaction area, hydrocarbon material II with an end point less than 400 DEG C enters and reacts in the third hydrogenation reaction area, and the reaction effluent of the reaction area is separated and fractioned, so that the diesel fraction is obtained. In order to solve the problems of the prior art, including diesel material shortage and the repeated construction of hydrogen circulation systems, fractioning systems and other auxiliary systems ina plurality of hydrogenation units, the invention provides the hydrogenation method for producing high-quality low-sulfur diesel fraction, which has the advantages of high integration and flexible production ...

Hydrogenation method for treating high-nitrogen high-aromatic hydrocarbon inferior diesel oil raw materials

The invention discloses a hydrogenation method for treating high-nitrogen high-aromatic hydrocarbon inferior diesel oil raw materials. An integrated two-section process flow of a first reaction area, intermediate separation and a second reaction area is adopted. The method comprises the following steps: performing hydrodenitrogeneration and bicyclo- or multi-cyclo aromatic hydrocarbon hydrogenation saturation reactions on inferior diesel oil with high nitrogen and aromatic hydrocarbon content in the first reaction area, performing intermediate separation, obtaining a hydrogenated material flow in which the organic nitrogen content is less than 200 ug/g and the total aromatic hydrocarbon content is more than 60 weight percent, and providing the raw materials for the second reaction area; performing moderate refining and hydro-upgrading in the second reaction area, and performing fractionation to obtain gasoline components with high octane value. By adoption of the method provided in the ...

Map production platform abnormity alarm information generation method and device, equipment and medium

The embodiment of the invention discloses a map production platform abnormity alarm information generation method and device, equipment and a medium. According to the scheme, the method comprises the steps of obtaining a first operation log of a map production platform in a first time period and a second operation log in a second time period, wherein the duration of the second time period is the same as that of the first time period, and the starting time point of the second time period is the ending time point of the first time period or the intermediate time point of the first time period; determining a first log quantity corresponding to the first operation log and a second log quantity corresponding to the second operation log; determining a log quantity change coefficient of the second time period relative to the first time period based on the first log quantity and the second log quantity; judging whether log quantity abnormity occurs or not according to the log quantity change coefficient ...

Hydrogenation modifying catalyst for poor quality diesel oil and its preparing process

The invention discloses a hydro-upgrading catalyst for inferior diesel and a preparation method thereof. The preparation method comprises the steps of: mixing, forming and roasting silicon oxide-alumina, alumina and/or a precursor of the alumina and Y-shaped molecular sieve, then introducing an effective dose of metallic components selected from at least one Group VII and at least one Group VI into the roasted forming composition; the preparation method is characterized in that the silicon oxide-alumina is selected from at least two the silicon oxide-alumina having different N values, the difference between the N values of the silicon oxide-alumina is 0.02-0.2. Compared with the prior art, the catalyst provided by the invention method has better upgrading performance for the inferior diesel.

A fixed structure for connecting aluminium base board and heat -sink device

The utility model discloses a fixed structure for connecting aluminium base board and heat -sink device, including the screw, this screw includes screw rod and nut, opens flutedly on aluminium base board, and it has the through -hole with this screw rod matched with to bore in the bottom of this recess, and it has the blind hole with this screw rod matched with to bore on heat -sink device, and in order being in the same place aluminium base board with heat -sink device fixed connection in the blind hole on screw rod on this screw passes the through -hole on the aluminium base board and extends to heat -sink device, recess cooperation on nut on this screw and the aluminium base board and setting are in this recess. The utility model discloses an in the recess of nut setting on aluminium base board on the screw rod, can satisfy aluminium substrate plane's roughness requirement on the one hand, on the other hand can not influence the pressure resistance of aluminium base board.

Hydrogenation cracking method to produce more raw material for making ethylene

Optimized hydrogenation-catalytic cracking combination process

The invention relates to an optimized hydrogenation-catalytic cracking combination process, comprising the following steps: wax oil raw materials react in a hydrotreating reaction area; obtained hydrogenation wax oil is taken as catalytic cracking raw oil and directly enters a catalytic cracking unit without being fractionated; catalytic heavy cycle oil circulates back the hydrotreating reaction area; gas phase material flow at the top of a high-pressure hot separator, catalytic light cycle oil and optional crude diesel oil enter a hydrogenation upgrading reaction area carry out hydrogenationupgrading reaction; and reaction products thereof are fractionated to obtain hydrogenation naphtha and hydrogenation diesel. A hydrotreating unit and a hydrogenation upgrading unit shares a hydrogensystem, the device investment and operation cost are lowered, the product scheme is flexible, and high-quality low-sulphur gasoline, high-quality diesel and reforming raw materials can be produced at the ...

Hydrocracking method for catalytic cracking diesel

The invention provides a hydrocracking method for catalytic cracking diesel. According to the method, a mixture of the diesel material and hydrogen is in contact reaction with a hydrorefining catalyst in a hydrorefining reactor, liquid efflux from the hydrorefining reactor is not separated and then enters a hydrocracking reactor to be in contact and react with a hydrocracking catalyst, the reaction efflux from the hydrocracking reactor is subjected to separation and fractional distillation to obtain hydrogen-rich gas, then light naphtha fraction, gasoline fraction, recycle fraction and diesel fraction are performed, in the distillation range of the recycle fraction, the temperature is 190 DEG C to 300 DEG C, and the recycle fraction returns to an inlet of the hydrocracking reactor. The method provided by the invention improves the composition of feed hydrocarbon of the hydrocracking reaction region, and the yield and the octane value of the gasoline fraction are effectively increased.

Hydrogenation modifying catalyst for poor ignition quality fuel and its preparing process

The invention discloses a hydro-upgrading catalyst for inferior diesel and a preparation method thereof. The preparation method comprises the steps of: mixing, forming and roasting silicon oxide-alumina, alumina and/or a precursor of the alumina and Y-shaped molecular sieve, then introducing an effective dose of metallic components selected from at least one Group VII and at least one Group VI into the roasted forming composition; the preparation method is characterized in that the silicon oxide-alumina is selected from at least two the silicon oxide-alumina having different N values, the difference between the N values of the silicon oxide-alumina is 0.02-0.2. Compared with the prior art, the catalyst provided by the invention method has better upgrading performance for the inferior diesel.

Coal tar hydrogenating modified method by two-stage method

The invention discloses a two-stage method coal tar hydro-upgrading method. Coal tar is subject to the atmospheric distillation and/or the reduced pressure distillation and is cut into coal tar light cut and coal tar heavy cut; after the coal tar light cut and optional distillate oil are mixed with hydrogen, the mixture enters a first hydrogeneration reaction zone and performs the contact reaction with hydrorefining catalyst; gas phase impurities of a reaction effluent is removed through an intermediate flash distillation column or a high-pressure stripping tower, and then the reaction effluent enters a second hydrogeneration reaction zone to perform the contact reaction with the hydro-upgrading catalyst or the hydrocracking catalyst; and the obtained reaction effluent is cooled, separated and fractionated to produce diesel fraction and naphtha cut. The invention provides a clean and effective coal tar processing and utilizing method, the coal tar light cut is hydro-upgraded to produce ...

Hydrocarbon-oil hydrotreatment method

A hydrocarbon-oil hydrotreatment method comprises contacting raw oil with a catalyst combination under hydrotreatment reaction conditions. The catalyst combination comprises a hdyrotreatment catalyst I and a hydrotreatment catalyst II, and the arrangement of the catalyst I and the catalyst II enables raw oil to be successively contacted with the catalyst I and the catalyst II. Based on the total amount of the catalyst combination in terms of volume, the content of the catalyst I is 5-40% and the content of the catalyst II is 60-95%. The catalyst I contains an aluminium oxide carrier with a double-peak pore structure, and mercury intrusion porosimetry, the carrier has the pore volume of 0.8-1.2 mL/g and the specific surface area of 120-400 m<2>/g, the pore volume of pores with the diameter of 6-30 nm accounts for 58-80% of the total pore volume, the pore volume of pores with the diameter of 10-30 nm is less than 55% of the total pore volume, and the pore volume of pores with the diameter ...

Two-stage fraction oil hydrogenating and arene eliminating process

Fraction oil material is first reacted in the first reactor and in the presence of hydrogen and non-noble metal catalyst with the reaction product entering hot high-pressure separator. The material from the bottom of the hot high-pressure separator is further reacted in the second reactor and in the presence of hydrogen and non-noble metal catalyst with the reaction product passing successively through a high-pressure separator and a low-pressure separator to obtain liquid product. Hydrogen-riched gas from the top of the high-pressure separator is used circularly. The method can obtain product with an arene content lower than 10 wt% and a yield as high as 95 wt%.

Method for producing fine-quality diesel oil blending component by using waste plastic pyrolysis oil

The invention relates to a method for producing a fine-quality diesel oil blending component by using waste plastic pyrolysis oil, comprising the following steps of: firstly, measuring the density of the waste plastic pyrolysis oil at 20 DEG C; and then selecting different processing methods according to the size of the density. One method comprises the steps of: fractionating the waste plastic pyrolysis oil with higher density, and hydrogenating a heavy component obtained by fractionation to produce the fine-quality diesel oil blending component; and the other method comprises the steps of: hydrogenating the waste plastic pyrolysis oil with lower density in a total cut fraction way, and fractionating hydrogenated product oil so that an obtained hydrogenated heavy component is the fine-quality diesel oil blending component. The two processing methods can be realized by one set of device equipment, have good flexibility of practical operation and can flexibly switch processing procedures ...

Method for hydrocracking of coked wax oil

The invention provides a method for hydrocracking of coked wax oil, which comprises: contact reaction of raw materials, hydrogen and a hydrogenation protection catalyst under the condition for hydrogenation protection reaction, wherein oil in the raw materials is coked wax oil or mixed oil containing coked wax oil; contact reaction of products in the hydrogenation protection reaction, products ofhydrocracking reaction and a hydrogenation refining catalyst under the condition for hydrogenation refining reaction; separation of light distillates, intermediate distillates and heavy distillates with initial boiling points being 350-360 DEG C from products of the hydrogenation refining reaction; and contact reaction of the heavy distillates with the initial boiling points being 350-360 DEG C and a hydrocracking catalyst under the condition for hydrocracking reaction, thereby obtaining products of the hydrocracking reaction. The method of the invention prolongs the operating cycle of the device ...

一种由煤液化油生产优质柴油的组合工艺方法

A combined process for preparing high-quality diesel oil from the oil obtained by liquefying coal includes filtering the raw oil, adding it along with H2 to hydrogenating reactor, contacting with hydroprotecting agent and hydrorefining catalyst, reacting, separating to obtain H2-enriched gas, naphtha fraction, diesel oil fraction and tail oil fraction, returning the H2-enriched gas back to hydrogenating reactor, feeding the diesel oil fraction along with H2 in hydromodifying reactor, contacting with hydromodifying catalyst, reaction, separating to obtain naphtha fraction and diesel oil fraction, and returning the H2-enriched gas back to hydromodifying reactor.

Method for producing jet fuel or jet fuel blending component

The invention discloses a method for producing a jet fuel or a jet fuel blending component. A mixed oil is obtained by mixing a Fischer-Tropsch synthesis fuel and a direct coal liquefaction oil; and the jet fuel or jet fuel blending component is obtained by hydrorefining, hydrocracking, isocracking and fractionating the mixed oil. According to the method provided by the invention, two prepared coal oils can be converted into the high-quality jet fuel or jet fuel blending component. Compared with hydro-upgrading of the direct coal liquefaction oil, the method has the advantages of mild reaction conditions, low device investment cost and low operation cost.

Hydrogenation of distilled oil

A process for hydrogenating fraction oil features that the raw fraction oil is directly contacted with hydrocatalyst at 330-400 deg.C, 3-8 MPa of hydrogen pressure and 0.5-2.0/hr for reaction, and the resultant substance is cooled and separated to obtain diesel oil and less naphtha. Said hydrocatalyst is composed of active metal component chosen from VIII or VIB family and the alumina-zeolite mixture as carrier. Its advantages are high output rate, high hexodecane number and low density and sulfur content.

Production of cleaning fuel from heavy-fraction oil

Hydrocarbon-oil hydrotreatment catalyst, and preparation and application thereof

The invention discloses a hydrocarbon-oil hydrotreatment catalyst, and preparation and application thereof. The catalyst comprises an aluminium oxide carrier with a double-peak pore structure. Characterized by mercury intrusion porosimetry, the carrier has the pore volume of 0.8-1.2 mL/g and the specific surface area of 120-400 m<2>/g, the pore volume of pores with the diameter of 6-30 nm accounts for 58-80% of the total pore volume, the pore volume of pores with the diameter of 10-30 nm is less than 55% of the total pore volume, and the pore volume of pores with the diameter of 300-500 nm accounts for 10-35% of the total pore volume. Compared with hydrotreatment catalysts provided in the prior art, the catalyst simultaneously hash relatively good hydrogenation metal-removal activity and desulphurization activity.

Method for preparing clean diesel and product thereof

Hydro-upgrading method for diesel distillate

The invention discloses a hydro-upgrading method for diesel distillates, wherein, the method comprises the steps of: in the presence of a hydrorefining catalyst and a hydro-upgrading catalyst, facilitating the diesel distillates with the total aromatics content not less than 35 weight % to contact a hydrogen-rich gas in a first reactor, so that the products after the contact has the total aromatics content not less than 35 weight%; afterwards in the presence of the hydrorefining catalyst and in a second reactor, facilitating the obtained products to contact a mixture of the diesel distillates with the total aromatics content less than 35 weight%. The hydro-upgrading method for the diesel distillates provided by the invention improves the quality of the diesel products to a large extent while maintaining high diesel yield, namely, the diesel yield is 93-99 weight%.

Method for producing high-octane petrol by inferior diesel

The invention relates to a method for producing high-octane petrol by inferior diesel. A mixture of diesel raw oil and hydrogen gas reacts with a hydrorefining catalyst in a first reaction zone and a hydrocracking catalyst in a second reaction zone in sequence, the saturation depth of arene in the first reaction zone is controlled, i.e. compared with diesel raw oil, the saturation ratio of two-ring and more than two-ring arene in reaction effluent of the first reaction zone is more than 50%, and taking the liquid components of the reaction effluent of the first reaction zone as a reference, the content of single-ring arene is increased to more than 40% by mass. Low-sulfur high-octane petrol can be produced from inferior diesel fractions with high arene content by using the single-pass process flow and a method of properly controlling reaction depth, and meanwhile, a low-sulfur clean diesel blend component can also be produced.

Hydrogenation method for reducing condensation point of diesel oil

The invention relates to a hydrogenation method for reducing the condensation point of diesel oil, comprising the following steps of: mixing diesel oil material and hydrogen for full fraction hydrogenation in a first hydrogenation area; flashing reaction effluences in a heat high-pressure separator; flashing the lighter components of the diesel oil out of the heat high-pressure separator, whereinliquid-phase material flows obtained by the heat high-pressure separator are the heavy components of the diesel oil; mixing the liquid-phase material flows with the hydrogen, and putting into second hydrogenation areas including a pour point depression reaction area and a post-refining area, for pour point depression reaction; mixing obtained gas-phase material flows of the heat high-pressure separator with reaction effluences of the second hydrogenation area, and putting into a sequential separation and fractionation system so as to obtain diesel oil products. The invention can enhance the yield ...

Coal tar hydrogenating modified method by single-stage method

The invention discloses a single-stage method coal tar hydro-upgrading method. Coal tar is subject to the atmospheric distillation and/or the reduced pressure distillation and is cut into coal tar light cut and coal tar heavy cut, and the cut point of the coal tar is between 300 and 380 DEG C; after the coal tar light cut and optional distillate oil are mixed with hydrogen, the mixture performs the contact reaction by hydrorefining catalyst, and a reaction product of the mixture and the hydrorefining catalyst is not separated and directly performs the contact reaction with hydro-upgrading catalyst or hydrocracking catalyst; and an obtained reaction effluent is cooled, separated and fractionated to produce diesel fraction and naphtha cut. The invention provides a clean and effective coal tar processing and utilizing method, the coal tar light cut is hydro-upgraded to produce diesel oil for vehicles, the sulfur content of the obtained diesel product is less than 50 mu g/g, the content of ...

Hydrogenation method for producing lubricant basic oil with low condensation point

The invention discloses a hydrogenation method for producing lubricant basic oil with a low condensation point. The method comprises the following steps: mixing raw material oil with hydrogen gas, then transporting the mixture into a hydro-refining reactor, subjecting the mixture to contact with a hydro-refining catalyst to carry out reactions, transporting the reaction product which flows out from the hydro-refining reactor into a hydro-cracking reactor, subjecting the reaction product to orderly contact with a hydro-cracking catalyst and a post hydro-refining catalyst to carry out reactions, and subjecting the reaction product which flows out from the hydro-cracking reactor to processes of separation and fractionation so as to obtain the following components: gas rich in hydrogen, a naphtha fraction, middle distillate, and a tail oil fraction; wherein part of the obtained tail oil fraction is recycled and transported to the hydro-cracking reactor. By adopting the method provided by the ...

Hydrogenation method for reducing condensation point of diesel oil

Method for producing diesel oil or diesel oil blending component

The invention discloses a method for producing diesel oil or a diesel oil blending component. The method comprises the following steps of: mixing Fischer-Tropsch synthetic oil and direct coal liquefaction oil to obtain mixed oil; and performing hydrofining and hydrogenation isocracking on the mixed oil and performing fractionation to obtain a diesel oil product or the diesel oil blending component. In the method provided by the invention, two types of oil prepared from coal can be transformed into clean diesel oil which is accordant with a European IV standard or the diesel oil blending component with a large cetane number. Compared with hydrogenation modification of the direct coal liquefaction oil, the method has the advantages of temperate reaction condition, low device investment costand low operation cost.

Composite process of producing high quality diesel oil from coal liquified oil

Method of hydro-conversion of polycyclic aromatic hydrocarbons

The invention discloses a method of hydro-conversion of polycyclic aromatic hydrocarbons. The method comprises the following steps: (1), in at least one hydrogenation reaction zone, enabling a material containing polycyclic aromatic hydrocarbons to contact with a hydrogenation catalyst for reaction in the presence of a hydrogen gas to obtain a reaction product with polycyclic aromatic hydrocarbons which are partly hydro-generated and saturated; and (2), in at least one hydrogen-cracking reaction zone, enabling the reaction product with polycyclic aromatic hydrocarbons partly hydro-generated and saturated, which is obtained in the step (1) to contact with a hydrogen-cracking catalyst for reaction in the presence of the hydrogen gas, wherein a conversation rate of the polycyclic aromatic hydrocarbons in the material containing the polycyclic aromatic hydrocarbons is over 40wt% by selecting the hydrogenation catalyst and operation conditions of the hydrogenation reaction zone; and relative ...

Hydrogenation method for producing high-quality low-sulfur diesel fraction

Optimized hydrogenation-catalytic cracking combination process

The invention relates to an optimized hydrogenation-catalytic cracking combination process, comprising the following steps: wax oil raw materials react in a hydrotreating reaction area; obtained hydrogenation wax oil is taken as catalytic cracking raw oil and directly enters a catalytic cracking unit without being fractionated; catalytic heavy cycle oil circulates back the hydrotreating reaction area; gas phase material flow at the top of a high-pressure hot separator, catalytic light cycle oil and optional crude diesel oil enter a hydrogenation upgrading reaction area carry out hydrogenationupgrading reaction; and reaction products thereof are fractionated to obtain hydrogenation naphtha and hydrogenation diesel. A hydrotreating unit and a hydrogenation upgrading unit shares a hydrogensystem, the device investment and operation cost are lowered, the product scheme is flexible, and high-quality low-sulphur gasoline, high-quality diesel and reforming raw materials can be produced atthe same ...

Method of dense raw material hydrotreatment-catalytic cracking for improving propylene productivity

The invention discloses a heavy raw material hydrotreating-catalytic cracking method to increase propone productivity, which comprises the following steps: choosing light circling oil and or weight circling oil from catalytic cracking unit; adding into hydrogenation reaction zone with heavy cut oil; or adding into two hydrogenation reaction zone with different hydrogenation catalyst to react; getting effluent; cooling; separating; fractionating; getting heavy liquid phase fraction; moving catalytic cracking unit; separating the catalytic cracking reacting product; getting the final product. This invention can dispose cycloalkyl heavy raw material, which propone receiving ratio can increase by 5-7 percent dot.

Combined process for delayed coking and hydrotreating

The invention discloses a combined process for delayed coking and hydrotreating, which comprises the following steps that: a coking raw material is heated to enter a coking tower to react, oil gas escapes from the top of the coking tower, gas components and liquid components are separated, and the cycle ratio in a coking process is 0; and the liquid components are mixed with hydrogen to react in a hydrogenation reactor, then the obtained hydrogenated reaction effluent is distilled to obtain hydrogenated naphtha, hydrogenated diesel oil and hydrogenated wax oil, and the hydrogenated wax oil used as a high-quality raw material is fed into a catalytic cracking device or a hydrocracking device. By adopting the process flow of zero circulation of a coking device, the method provided by the invention furthest improves the yield of a liquid product, improves the processing depth of heavy oil, saves a coking fractionating tower, and achieves the aims of optimizing the flow and reducing the investment ...

Hydrocracking method for producing chemical materials to maximum with low cost

The invention relates to a hydrocracking method for producing chemical materials to the maximum with low cost, comprising the following steps: mixing raw oil and hydrogen gas , entering a first reaction area, sequentially contacting with hydrofining catalyst and hydrocracking catalyst, reacting under the pressure of 6.0-16.0 MPa; carrying out oil-gas separation and fractionation on the reaction products thereof to obtain liquefied gas, light naphtha fractions, heavy naphtha fractions, middle fractions and tail oil fractions; mixing the middle fractions and the hydrogen gas and enteringa second reaction area, contacting with the hydrocracking catalyst under the pressure of 1.0-5.5 MPa to react; and carrying out oil-gas separation on the reaction products thereof and entering a fractionation system . By adopting the method, heavy raw materials such as vacuum gas oil, coking gas oil and the like are treated to obtain more than 98 weight percent chemical materials. In the invention, themiddle ...

Hydrocracking method for producing chemical materials to maximum with low cost

The invention relates to a hydrocracking method for producing chemical materials to the maximum with low cost, comprising the following steps: mixing raw oil and hydrogen gas , entering a first reaction area, sequentially contacting with hydrofining catalyst and hydrocracking catalyst, reacting under the pressure of 6.0-16.0 MPa; carrying out oil-gas separation and fractionation on the reaction products thereof to obtain liquefied gas, light naphtha fractions, heavy naphtha fractions, middle fractions and tail oil fractions; mixing the middle fractions and the hydrogen gas and enteringa second reaction area, contacting with the hydrocracking catalyst under the pressure of 1.0-5.5 MPa to react; and carrying out oil-gas separation on the reaction products thereof and entering a fractionation system . By adopting the method, heavy raw materials such as vacuum gas oil, coking gas oil and the like are treated to obtain more than 98 weight percent chemical materials. In the invention, themiddle ...

Mild hydrogenation purifying method for coal direct liquefaction oil

The invention relates to a mild hydrogenation extraction method for direct coal liquefaction oil, which comprises: blending the direct coal liquefaction oil with hydrogen to put into a steady hydrogenation reactor, carrying out desulfurization, denitrification, olefin saturation and aromatics saturation reaction under the action of a hydrotreating catalyst, separating and distilling the reaction product to obtain naphtha cut and diesel distillate, blending the obtained diesel distillate with the hydrogen, putting the mixture into a hydrogenation modification reactor to contact and react with a hydrogenation modification catalyst, separating and distilling the reaction product to obtain the diesel product. The method provided by the invention effectively combines a steady hydrogenation unit with a hydrogenation modification unit, and can product the diesel product with more than 45 of cetane number. The method has the advantages of mild operation condition, simple process, low investment ...

Hydrogenation method for producing high grade diesel oil and high grade reforming raw material

A hydrogenation method for producing high-quality diesel oil and high-quality reforming materials comprises the following steps of: mixing diesel oil and/or a light wax oil material with hydrogen gas, and sequentially contact-reacting with a hydrorefining catalyst and a hydrocracking catalyst without middle separation, cooling the reaction result, and separating to obtain a light naphtha fraction, a heavy naphtha fraction, a kerosene fraction, a diesel oil fraction and a tail oil fraction, wherein the kerosene fraction and/or the tail oil fraction can be directly extracted or partially or completely recycled back to the reaction system. By adopting single-stage once-through process and a non-noble metal catalyst, the invention can produce the reforming materials with high aromatic contentand the diesel oil fraction with high cetane number, wherein the yield of the reforming material is larger than 20wt%, and the cetane number of the diesel oil fraction can be improved by more than 15units ...

Hydrocracking method for more producing chemical industry light oil from poor heavy raw material

A hydrocracking method for increasing the production of chemical light oil from poor-quality heavy raw materials comprises the following steps of: feeding heated raw materials and hydrogen gas into a hydrorefining reactor by adopting a single-stage serial once-through process, reacting in the presence of a preferred hydrorefining catalyst, feeding the reaction effluent into a hydrocracking reactor without separation, reacting in the presence of the preferred hydrocracking catalyst, subjecting the produced reaction effluent to oil-gas separation to obtain a hydrogen-rich gas and a liquid, compressing the hydrogen-rich gas and recycling, and fractionally distilling the liquid to obtain a light naphtha fraction, a heavy naphtha fraction, a diesel oil fraction and a tail oil fraction. The method provided by the invention can be used for processing poor-quality heavy raw materials with high content of nitrogen and sulfur impurities to obtain chemical light oils with more quantity and better ...

Process of producing clean diesel oil and low carbon olefin with residual oil and heavy fraction oil

The process of producing clean diesel oil and low carbon olefin with residual oil and heavy fraction oil includes: deasphalting residual oil through mixing residual oil and optional catalytic crackingoil slurry in a solvent deasphalting unit; hydrocracking of the deasphalted oil and optional heavy fraction oil with hydrogen in a hydrogenating unit and separating the products to obtain light and heavy naphtha fraction, diesel oil fraction and hydrogenated tail oil; catalytically cracking the hydrogenated tail oil in a catalytically cracking unit and separating products to obtain low carbon olefin, gasoline fraction, diesel oil fraction and oil slurry; returning all the catalytically cracked diesel oil fraction to the catalytically cracking reactor and returning all or partial catalyticallycracked oil slurry to the solvent deasphalting unit. The process has high yield of clean diesel oil and low carbon olefin and high quality of the diesel oil product.

Direction adjusting device for rotor punching sheet, core loading machine and preparation method

The invention relates to the field of assembling of micro-motor rotors, in particular to a direction adjusting device for rotor punching sheets, a core installing machine and a manufacturing method, the direction adjusting device comprises a machine base, a material blocking part and a containing cylinder used for containing the rotor punching sheets, and the containing cylinder is rotatably assembled on the machine base in the axial direction of the containing cylinder; the placing cylinder is arranged in a penetrating mode along the axis of the placing cylinder to form a placing space, the placing cylinder is arranged in a protruding mode from the inner wall of the placing space to the axis of the placing cylinder to form a positioning part, the positioning part is matched with the groove wall of the rotor punching sheet, and the placing space is provided with a feeding station and a discharging station; the feeding station is located at the upstream end of the discharging position, the ...

Two-stage fraction oil hydrogenating and arene eliminating process

Fluorinated and phosphor-containing hydrogenation catalyst with silicon oxide-alumina as carrier and its production

一种从焦化馏分油生产喷气燃料的方法

A process for preparing the jet fuel from coking distillate features that the coking distillate and hydrocatalyst take part in reaction in the conditions of 3-12 MPa for hydrogen pressure, 300-400 deg.c, 400-1000 Ncu.m/cu.m for H2/oil ratio, and 0.5-5 /hr for space speed. Said hydrocatalyst is composed of the active component chosen from the metals in VIII or VIB family and the carrier (the mixture of alumina and zeolite).

Method for producing jet fuel or jet fuel blending component

Heavy-oil hydrotreatment catalyst, and preparation and application thereof

The invention discloses a heavy-oil hydrotreatment catalyst, and preparation and application thereof. The catalyst comprises an aluminium oxide carrier with a double-peak pore structure, and the carrier contains one or more auxiliary agent compositions selected from boron, silicon and fluorine. Characterized by mercury intrusion porosimetry, the carrier has the pore volume of 0.8-1.2 mL/g and the specific surface area of 120-400 m<2>/g, the pore volume of pores with the diameter of 6-30 nm accounts for 58-80% of the total volume, the pore volume of pores with the diameter of 10-30 nm is less than 55% of the total volume, and the pore volume of pores with the diameter of 300-500 nm accounts for 10-35% of the total volume. Based on the total weight of the catalyst in terms of oxides, the content of auxiliary boron and silicon is 8 wt% or less, and the content of fluorine in terms of an element is 8 wt% or less. Compared with hydrotreatment catalysts provided in the prior art, the provided ...

Hydrogenation pretreatment method for catalytically-cracked raw oil

A hydrogenation pretreatment method for catalytically-cracked raw oil comprises enabling raw oil to be contacted with a catalyst combination under the conditions of a hydrogenation processing reaction. The catalyst combination comprises a hydrogenation processing catalyst I and a hydrogenation processing catalyst II, and the hydrogenation processing catalyst I and the hydrogenation processing catalyst II in the catalyst combination are arranged to enable raw oil to be successively contacted with the catalyst I and the catalyst II. Based on the total amount by volume of the catalyst combination, the content of the catalyst I is 5-40%, and the content of the catalyst II is 60-95%. The catalyst I contains a boron-containing aluminium oxide carrier with a double-peak pore structure, and characterized by mercury intrusion porosimetry, the carrier has the pore volume of 0.8-1.2 mL/g and the specific surface area of 120-400 m<2>/g, the pore volume of pores with the diameter of 6-30 nm accounts ...

Aluminium oxide carrier with double-peak pore structure and preparation method thereof

The invention discloses an aluminium oxide carrier with a double-peak pore structure and a preparation method thereof. Characterized by mercury intrusion porosimetry, the carrier has the pore volume of 0.8-1.2 mL/g and the specific surface area of 120-140 m<2>/g, the pore volume of pores with the diameter of 6-30 nm accounts for 58-80% of the total pore volume, the pore volume of pores with the diameter of 10-30 nm is lower than 55% of the total pore volume, and the pore volume of pores with the diameter of 300-500 nm accounts for 10-35% of the total volume. Compared with the prior art, the provided carrier has the specific double-peak pore structure, and can be used as an adsorbent and a catalyst carrier.

Method for producing diesel oil with high quality and low freezing point

Provided is a method for producing diesel oil with high quality and low freezing point. Diesel oil light components and a hydrorefining catalyst I are subjected to contact reaction in a first reaction zone. Diesel oil heavy components and a hydrorefining catalyst II are subjected to contact reaction in a second reaction zone, and the reaction effluent directly goes to a third reaction zone without separation and contacts a hydrogenation upgrading dewaxing catalyst and a hydrogenation upgrading dewaxing reaction is carried out. The first reaction zone effluent and the third reaction zone effluent go to a separation system and a fractionation system together, and gases, a naphtha fraction and a low-freezing-point diesel oil fraction. Through the method, No.-10 to No.-50 diesel oil can be produced flexibly, the cetane number is raised greatly compared with that of the raw materials, contents of impurities of sulfur, nitrogen and the like are lowered greatly, and Europe IV and Europe V clean ...

Process for deep dearylation of hydrocarbon oil

The invention discloses a process for deep dearylation of hydrocarbon oil which comprises, charging raw oil and hydrogen gas into hydrogenation reactor, contacting hydrodealkylation catalyst, isolating the reacted articles to obtain gaseous phase and liquid phase product, wherein the gaseous phase product is compressed for cycling use, the liquid phase product is isolated to obtain destination product of low aromatic hydrocarbons.

Combined process for delayed coking and hydrotreating

The invention discloses a combined process for delayed coking and hydrotreating, which comprises the following steps that: a coking raw material is heated to enter a coking tower to react, oil gas escapes from the top of the coking tower, gas components and liquid components are separated, and the cycle ratio in a coking process is 0; and the liquid components are mixed with hydrogen to react in ahydrogenation reactor, then the obtained hydrogenated reaction effluent is distilled to obtain hydrogenated naphtha, hydrogenated diesel oil and hydrogenated wax oil, and the hydrogenated wax oil used as a high-quality raw material is fed into a catalytic cracking device or a hydrocracking device. By adopting the process flow of zero circulation of a coking device, the method provided by the invention furthest improves the yield of a liquid product, improves the processing depth of heavy oil, saves a coking fractionating tower, and achieves the aims of optimizing the flow and reducing the investment ...

Composition of boehmite and silicon-containing compound and silicon oxide-alumina prepared from same

The invention discloses a composition of boehmite and a silicon-containing compound and silicon oxide-alumina prepared from the same. The composition of the boehmite and the silicon-containing compound is characterized in that: the boehmite comprises at least one boehmite P1 of which n is less than or equal to 1.1 or more than or equal to 2.5, wherein n is equal to D (031)/D (120); the D (031) expresses a grain size of a crystal face represented by 031 peak in an X-ray diffraction (XRD) spectrum of boehmite grains; the D (120) expresses the grain size of the crystal face represented by 120 peak in the XRD spectrum of the boehmite grains; the 031 peak indicates the peak that 2 theta is 34 to 43 DEG in the XRD spectrum; the 120 peak indicates the peak that the 2 theta is 23 to 33 DEG in theXRD spectrum; D is equal to K lambda/(Bcos theta); the K is Scherrer constant; the lambda is the diffraction wavelength of a target-type material; B is the peak breadth of a diffraction peak; and the2 theta ...

Hydrogenation modification method of distillate oil

A hydrogenation/modification method of distillate oil comprises the following steps: mixing a raw material oil with hydrogen, contacting with a hydrogenation/modification catalyst in a first hydrogenation reaction area to obtain a reaction product, directly feeding the reaction product into a second hydrogenation reaction area without separation, reacting in the presence of a hydro-refining catalyst to obtain a reaction product in the second hydrogenation reaction area, cooling the reaction product in the second hydrogenation reaction area, separating, and fractionally distilling to obtain diesel fraction and naphtha fraction, wherein the hydrogenation/modification catalyst contains silicon oxide-aluminum oxide, Y-zeolite, aluminum oxide, at least one metal component selected from the VIII group and at least one metal component selected from the VIB group. The method provided by the invention can modify poor catalytic cracking diesel with high contents of sulfur, nitrogen and aromatics ...

Hydrogenation method for reducing condensation point of diesel

A hydrogenation method for reducing the condensation point of diesel comprises the following steps: raw oil is in contact with a hydrofining catalyst in a first reaction area for reaction, effluents in the first reaction area are subjected to separation and fractionation to obtain gases, naphtha fractions, low-condensation-point diesel fractions I and high-condensation-point heavy diesel fractions; the obtained high-condensation-point heavy diesel fractions enter a second reaction area, and are in contact with a hydro-upgrading condensation point reducing catalyst to carry out an isocracking condensation point reducing reaction; effluents in the second reaction area are subjected to separation and fractionation to obtain low-condensation-point diesel fractions II; the low-condensation-point diesel fractions and the low-condensation-point diesel fractions II are mixed to obtain low-condensation-point diesel. According to the invention, the process selectivity is improved, so that the low-condensation-point ...

Hydrocracking method for more producing chemical industry light oil from poor heavy raw material

A hydrocracking method for increasing the production of chemical light oil from poor-quality heavy raw materials comprises the following steps of: feeding heated raw materials and hydrogen gas into a hydrorefining reactor by adopting a single-stage serial once-through process, reacting in the presence of a preferred hydrorefining catalyst, feeding the reaction effluent into a hydrocracking reactor without separation, reacting in the presence of the preferred hydrocracking catalyst, subjecting the produced reaction effluent to oil-gas separation to obtain a hydrogen-rich gas and a liquid, compressing the hydrogen-rich gas and recycling, and fractionally distilling the liquid to obtain a light naphtha fraction, a heavy naphtha fraction, a diesel oil fraction and a tail oil fraction. The method provided by the invention can be used for processing poor-quality heavy raw materials with high content of nitrogen and sulfur impurities to obtain chemical light oils with more quantity and better ...

Hydro-cracking method for producing middle distillate and tail oil rich in chain alkane

The invention discloses a hydro-cracking method for producing middle distillate and tail oil rich in chain alkane. The method comprises the following steps: mixing raw material oil with hydrogen gas, subjecting the mixture to orderly contact with a hydro-refining catalyst and a hydro-cracking catalyst to carry out reactions, and subjecting the reaction product to processes of separation and fractionation so as to obtain the following components: gas rich in hydrogen, a naphtha fraction, a kerosene fraction, a diesel oil fraction, and a tail oil fraction; wherein the tail oil fraction is totally extracted, or part of the tail oil fraction is recycled and returned to the reaction system. By adopting the method provided by the invention, heavy fraction oil can be processed, the output of the middle distillate is increased, and at the same time high quality tail oil with a high content of chain alkane is produced. Compared to the prior art, the hydro-cracking method has the advantages of good ...

Hydrogenation method for producing lubricant basic oil with low pour point and high viscosity index

The invention discloses a hydrogenation method for producing lubricant basic oil with a low pour point and a high viscosity index. The hydrogenation method comprises the following steps: mixing raw material oil with hydrogen gas, then transporting the mixing to a hydro-cracking reaction unit, subjecting the reaction product which flows out from the hydro-cracking reaction unit to processes of separation and fractionation, recycling the obtained heavy tail oil fraction, then adding the heavy tail oil fraction into the hydro-cracking reaction unit, mixing the obtained tail oil fraction with hydrogen gas, and then transporting the mixture to a hydro-isomerization and pour-point reducing reaction unit to carry out hydro-isomerization reactions, pouring point reducing reactions, and hydrogenation saturation reactions so as to obtain the lubricant basic oil. The invention solves the problem that the quality of the lubricant basic oil cannot stay stable because the raw material quality turns bad ...