Hydrocracking method for producing low-carbon light hydrocarbons and cycloalkane-rich products

The invention relates to a hydrocracking method for producing low-carbon light hydrocarbon and cycloalkane-rich products, which comprises the following steps: mixing wax oil raw oil with a second hydrogen material flow, sequentially feeding the mixture into a hydrogenation unit I and a hydrocracking unit for reaction, separating the reaction effluent of the hydrocracking unit to obtain a first liquid phase material and a second liquid phase material, the obtained second liquid phase material, part or all of the first distillate oil and the first hydrogen material flow enter a hydrogenation unit II together for reaction, and the reaction products are respectively subjected to fractionation to obtain low-carbon light hydrocarbon, light naphtha rich in paraffin and various products rich in naphthenic hydrocarbon. According to the invention, directional high-selectivity conversion of wax oil raw oil according to a chain structure and a ring structure is realized on the whole, and a chemical ...

Hydrocracking method for producing heavy naphtha and low freezing point diesel oil

The invention relates to the field of processing raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing heavy naphtha and low-freezing-point diesel oil, which comprises the following steps: mixing the raw oil with hydrogen, carrying out desulfurization, denitrification and aromatic hydrocarbon saturation reaction in a hydrofining reaction zone to obtain a refined effluent, and feeding the refined effluent into a partitioned hydrocracking reactor, tail oil obtained by a fractionation unit and a small amount of refined effluent enter an upper reaction zone of a partitioned hydrocracking reactor for reaction, and upper reaction effluent, refined oil entering from the side of the reactor and supplementary hydrogen are mixed and distributed and then enter a lower reaction zone; the obtained reaction effluent is separated and fractionated into a light naphtha fraction, a heavy naphtha fraction, a low-freezing-point diesel oil fraction and a tail oil ...

CATALYTIC CONVERSION METHOD FOR INCREASING CETANE NUMBER BARREL OF DIESEL

A catalytic conversion method for increasing cetane number barrel of diesel, comprises carrying out contact reaction between raw oil and catalyst mainly containing large pore zeolite with relatively uniform activity in a catalytic conversion reactor, wherein the reaction temperature, oil and gas residence time and the weight ratio of the catalyst to raw oil are sufficient to obtain reaction product containing diesel and about 12% to about 60 wt% catalytic paraffine oil based on the weight of the raw oil, and the reaction temperature is 420~550℃, the oil and gas residence time is about 0.1 to about 5 seconds, the weight ratio of catalyst to raw oil is about 1 to about 10. The catalytic paraffine oil is sent to other equipment for further treatment or is recycled to original catalytic conversion reactor. The method can maximize the production of high cetane number diesel, and the cracking catalyst with coarse particle diameter distribution can also improve the selectivity of dry gas and coke ...

CATALYTIC CONVERSION METHOD FOR PRODUCING MORE DIESEL AND PROPYLENE

PROBLEM TO BE SOLVED: To provide a catalytic conversion method for producing more diesel and propylene. SOLUTION: The catalytic conversion method for producing more diesel and propylene comprises a step of bringing a feedstock oil into contact with a catalyst having relatively homogeneous activity in a reactor 2. The catalytic cracking catalyst comprises zeolite, an inorganic oxide and optionally clay respectively in the amounts of 1-50 wt.%, 5-99 wt.% and 0-70 wt.% of the total weight of the catalytic cracking catalyst, wherein the zeolite is medium pore zeolite, which is selected from the group consisting of ZSM-series zeolites and/or ZRP zeolites, and optionally large pore zeolite respectively in the amounts of 51-100 wt.% and 0-49 wt.% of the total weight of the zeolite. The catalyst having relatively homogeneous activity has ≤80 initial activity, 0.1-50 hours self-balancing time and 35-60 equilibrium activity. COPYRIGHT: (C)2011,JPO&INPIT ...

より多くのディーゼル及びプロピレンを製造するための触媒変成方法

一种生产高十六烷值、低凝柴油的加氢组合方法

... 一种生产高十六烷值、低凝柴油的加氢组合方法，是将原料油、氢气先与加氢改质催化剂或加氢裂化催化剂接触，反应流出物不经分离接着与临氢降凝催化剂接触，反应流出物经冷却进入高压分离器，分离出的液体产物进入分馏系统，富含氢的气体循环回反应器。该方法能在同一套装置中同时提高柴油的十六烷值并降低柴油的凝点，柴油产品的十六烷值较原料油提高6个单位以上。 ...

HYDROGENATION CATALYST, MANUFACTURING METHOD THEREFOR, AND APPLICATION THEREOF

A hydrogenation catalyst and a manufacturing method therefor. The manufacturing method at least comprises: (1) contacting a first active metal component and a first organic complexing agent with a carrier to obtain a composite carrier; (2) calcining the composite carrier to obtain a calcined composite carrier, the total content of carbon in the calcined composite carrier being less than 1 wt%; and (3) contacting a second organic complexing agent with the calcined composite carrier to obtain a hydrogenation catalyst. The hydrogenation catalyst has excellent hydrogenation desulfurization activity and hydrogenation denitrification activity, and shows significantly extended catalyst service life.

OIL SLURRY FILTER, OIL SLURRY FILTERING UNIT CONTAINING THE SAME, OIL SLURRY FILTERING SYSTEM AND OIL SLURRY FILTERING METHOD

The present invention provides an oil slurry filter, a filtering unit containing the oil slurry filter, a multi-filter system containing the oil slurry filter, and a multi-stage filtering system containing the oil slurry filter. By using a filter component of a flexible material, the oil slurry filter of the present invention solves the problems that the filter material is easily blocked by high-viscosity colloidal impurities, the filter has poor regeneration efficiency, and the filtering efficiency is low, and the oil slurry filter of the present invention can make the backwash treatment of filter residue more convenient and improve the regeneration efficiency of the filter. The present invention also provides a filtering method using the oil slurry filter to ensure long-term stable operation of the oil slurry filtering process.

METHOD AND DEVICE FOR UPDATING ROUTING SEARCH TREE

Disclosed is a method for updating a routing search tree, comprising: when it is determined that a routing search tree needs to be updated, determining an update layer level mark table and node update information in accordance with updated table entries; and selecting layer levels as the current layer in sequence from the routing search tree, and if it is judged that the current layer needs to be updated in accordance with the update layer level mark table, locking the previous layer of the current layer of the routing search tree, synchronizing the node update information to the current layer of the routing search tree, and so on, and ending this update of the routing search tree until it is determined that the current layer is the last layer needing to be updated in accordance with the update layer level mark table. Also disclosed is a device for updating a routing search tree. Using the present invention, the time for search blocking when a routing search tree is updated can be reduced ...

Hydrocracking method and system for producing reforming material or aromatic hydrocarbon material

The invention relates to the field of petrochemical engineering, and discloses a hydrocracking method and system for producing a reforming material or an aromatic hydrocarbon material, raw oil and hydrogen are mixed and then undergo a reaction in a hydrofining reaction zone to obtain a refined effluent, and the refined effluent enters a partitioned hydrocracking reactor; the tail oil obtained by the fractionation unit and a small amount of refined effluent enter an upper reaction zone of the partitioned hydrocracking reactor for reaction, and the upper reaction effluent, the residual refined oil and supplementary hydrogen are mixed and distributed and then enter a lower reaction zone; and separating and fractionating the obtained reaction effluent into a light naphtha fraction, a heavy naphtha fraction and a tail oil fraction, and circulating the tail oil back to the partitioned cracking reactor for continuous reaction. By adopting the partitioned cracking reactor and the method provided ...

Hydrocracking method for producing naphtha, light ethylene material and high-quality tail oil

The invention relates to the field of processing of raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing naphtha, a light ethylene material and high-quality tail oil. The method comprises the following steps: mixing raw oil with hydrogen, reacting in a hydrofining reaction zone to obtain a part of refined effluent, feeding the refined effluent into a hydrocracking reaction zone I, separating and fractionating the reaction effluent into a light naphtha fraction, a heavy naphtha fraction, a middle fraction oil and a tail oil fraction I through a fractionating tower I, the other part of refined effluent, the middle distillate and hydrogen are mixed and then enter a hydrocracking reaction zone II for continuous reaction, the reaction effluent is sent into a fractionating tower II for separation and fractionation, an obtained tower top material is sent into the fractionating tower I for further separation, and a tail oil distillate II is separated ...

Method for combining two hydrocracking systems

The invention relates to a method combining two hydrocracking systems, the first hydrocracking system treats first wax oil raw oil, the second hydrocracking system treats second wax oil raw oil, a part of liquid-phase material of the first hydrocracking system and a liquid-phase material of the second hydrocracking system react together in a hydrotreating unit III, and separating the product to obtain light naphtha rich in paraffin, distillate oil rich in naphthenic hydrocarbon and tail oil rich in naphthenic hydrocarbon. According to the invention, the intermediate base wax oil raw material and the naphthenic base wax oil raw material are directionally converted into the high-quality chemical raw material and the low-aromatic-hydrocarbon environment-friendly naphthenic base special oil product with high added value at the same time.

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.

Hydrocracking method for producing heavy naphtha and high aromatic jet fuel

The invention relates to the field of processing methods of raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing heavy naphtha and high aromatic hydrocarbon jet fuel, which comprises the following steps: mixing the raw oil with hydrogen, and sequentially passing through a hydrofining reaction zone and a hydrocracking reaction zone, and separating the obtained reaction product to obtain a light naphtha fraction, a heavy naphtha fraction, a jet fuel fraction and a tail oil fraction. By adopting the method provided by the invention, heavy naphtha and high aromatic jet fuel can be produced in a large proportion at a high conversion rate.

Partitioned hydrocracking method

The invention relates to the field of processing raw oil under high-pressure hydrogen conditions, and discloses a partitioned hydrocracking method, which comprises the following steps: mixing the raw oil with hydrogen, carrying out aromatic hydrocarbon hydrogenation saturation and hydrogenation impurity removal reaction in a hydrofining reaction zone, and feeding the obtained refined effluent into a partitioned hydrocracking reactor, the tail oil obtained by the fractionation unit and a small amount of refined effluent enter an upper reaction zone of the partitioned hydrocracking reactor for reaction, and the upper reaction effluent is mixed and distributed with the residual refined oil and supplementary hydrogen and then enters a lower reaction zone; and separating and fractionating the obtained reaction effluent into a light naphtha fraction, a heavy naphtha fraction, a jet fuel fraction, low freezing point diesel oil and a tail oil fraction, and circulating the tail oil back to the partitioned ...

Hydrocracking method for producing chemical raw materials

The invention relates to the field of processing raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing chemical raw materials. The method comprises the following steps: mixing raw oil with hydrogen, reacting in a hydrofining reaction zone to obtain a refined effluent, feeding the refined effluent into a partitioned hydrocracking reactor, and feeding middle distillate obtained by a fractionation unit and a small amount of refined effluent into an upper reaction zone of the partitioned hydrocracking reactor to react, mixing and distributing the upper reaction effluent with the residual refined effluent and supplementary hydrogen, then feeding the mixture into a lower reaction zone, separating and fractionating the obtained reaction effluent into a light naphtha fraction, a heavy naphtha fraction, middle distillate oil and a tail oil fraction, and circulating the middle distillate oil back to the partitioned cracking reactor for continuous reaction ...

Hydrocracking method for producing heavy naphtha and jet fuel

The invention relates to the field of processing raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing heavy naphtha and jet fuel, which comprises the following steps: mixing the raw oil with hydrogen, reacting in a hydrofining reaction zone to obtain a refined effluent, and feeding the refined effluent into a partitioned hydrocracking reactor; the tail oil obtained by the fractionation unit and a small amount of refined effluent enter an upper reaction zone of the partitioned hydrocracking reactor for reaction, and the upper reaction effluent, the residual refined oil and supplementary hydrogen are mixed and distributed and then enter a lower reaction zone; and separating and fractionating the obtained reaction effluent into a light naphtha fraction, a heavy naphtha fraction, a jet fuel fraction and a tail oil fraction, and circulating the tail oil back to the partitioned cracking reactor to continue the reaction. By adopting the partitioned ...

Crude oil storage tank bottom plate corrosion point positioning method and system based on acoustic emission signals

The invention discloses a crude oil storage tank bottom plate corrosion point positioning method and system based on acoustic emission signals, and relates to the technical field of chemical corrosion positioning, and the method comprises the steps: building a three-dimensional cylindrical coordinate system at the center position of a crude oil storage tank bottom plate; the inner surface of the base plate of the crude oil storage tank is in an xy plane of the three-dimensional cylindrical coordinate system; according to the type of the crude oil storage tank, the arrangement mode of acoustic emission sensors is determined, and the acoustic emission sensors are arranged on the crude oil storage tank according to the arrangement mode of the acoustic emission sensors; determining coordinate information of an acoustic emission sensor in the three-dimensional cylindrical coordinate system; and determining the crude oil storage tank bottom plate corrosion point according to the coordinate information ...

一种柴油深度脱硫脱芳烃的方法

... 一种柴油深度脱硫脱芳烃的方法，是原料油与氢气混合进入第一反应器，与加氢改质催化剂、加氢裂化催化剂或加氢精制催化剂接触，反应流出物在高温高压下经氢气汽提塔汽提后再与氢气混合进入第二反应器，与常规加氢精制催化剂接触，第二反应器的流出物依次进入高压分离器、低压分离器和分馏塔；分馏塔将反应产物分为石脑油和柴油馏分；从高压分离器和高压汽提塔分离出的富氢气流与新鲜氢气混合，分成两部分分别送至第一反应器和第二反应器。本发明提供的方法在中等压力下采用非贵金属催化剂脱除柴油原料的硫、芳烃含量，因此其成本较低。 ...

Hydrocracking method for producing chemical raw materials

The invention relates to the field of processing raw oil under high-pressure hydrogen conditions, and discloses a hydrocracking method for producing chemical raw materials. The method comprises the following steps: mixing raw oil with hydrogen, reacting in a hydrofining reaction zone to obtain a refined effluent, feeding the refined effluent into a partitioned hydrocracking reactor, and feeding middle distillate obtained by a fractionation unit and a small amount of refined effluent into an upper reaction zone of the partitioned hydrocracking reactor to react, mixing and distributing the upper reaction effluent with the residual refined effluent and supplementary hydrogen, then feeding the mixture into a lower reaction zone, separating and fractionating the obtained reaction effluent into a light naphtha fraction, a heavy naphtha fraction, middle distillate oil and a tail oil fraction, and circulating the middle distillate oil back to the partitioned cracking reactor for continuous reaction ...

Hydrocracking method for producing diesel oil with low aromatic content and high paraffin content from heavy distillate oil

The invention relates to a hydrocracking method for producing diesel oil with low aromatic content and high paraffin content from heavy distillate oil, which comprises the following steps: under hydrogenation conditions, contacting the heavy distillate oil with hydrogen and a hydrogenation catalyst in a fixed bed hydrogenation reactor; the dry point of the heavy distillate oil is not lower than 650 DEG C, and the metal content is not higher than 20 ppm; wherein the hydrogenation catalyst comprises a carrier and an active metal component loaded on the carrier; the active metal components comprise a nickel element and a tungsten element; on the basis of the total amount of the catalyst and in terms of oxide, the content of the nickel element is 0.5-10 wt%, and the content of the tungsten element is 15-35 wt%; on the basis of the total mass of the hydrogenation catalyst, the content of the carrier is 40-80 wt%; the carrier contains a non-amorphous mesoporous acidic material and a Y-type molecular ...

Hydrocracking method for producing high-aromatic jet fuel and high-quality tail oil in large proportion

The invention relates to the field of processing of raw oil under a high-pressure hydrogen condition, and discloses a hydrocracking method for producing high-aromatic jet fuel and high-quality tail oil in a large proportion, which comprises the following steps: mixing the raw oil with hydrogen, and sequentially passing through a hydrofining reaction zone and a hydrocracking reaction zone; and separating the obtained reaction product to obtain a light naphtha fraction, a heavy naphtha fraction, a jet fuel fraction and a tail oil fraction. By adopting the method provided by the invention, the high-aromatic jet fuel component and the high-quality tail oil can be produced in a large proportion.

Battery cell, battery module and vehicle

The invention relates to the technical field of power batteries, and discloses a battery cell, a battery module and a vehicle. The battery cell comprises a metal shell, a naked battery cell and an external tab; the metal shell comprises a packaging shell and a sealing cover, a sealing cavity is defined between the packaging shell and the sealing cover, and connecting positions are arranged at the connecting position between the packaging shell and the sealing cover in the circumferential direction and comprise the first connecting position formed through heat sealing or mucilage glue and the second connecting position formed through welding; a glue part is arranged between the sealing cover at the first connecting position and the packaging shell; the naked battery cell is arranged in the sealing cavity; and one end of the external tab is arranged in the sealing cavity and is electrically connected to the naked battery cell, the other end of the external tab penetrates out of the metal ...