INTEGRATED RESIDUUM HYDROCRACKING AND HYDROFINISHING

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor. 1. A residuum processing system , comprising:an ebullated bed hydroconversion reactor that comprises an inlet and an outlet;a first separation zone fluidly coupled to the outlet of the ebullated bed hydroconversion reactor;an integrated hydrocracking/hydrofinishing reactor fluidly coupled to the first separation zone; and circulating a feed stream that comprises a residuum hydrocarbon fraction to the inlet of the ebullated bed hydroconversion reactor;', 'operating the ebullated bed hydroconversion reactor to contact the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product;', 'operating the first separation zone to separate the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream;', 'circulating the distillate stream to a bottom portion of the integrated hydrocracking/hydrofinishing reactor; and', 'circulating the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor., 'a control system communicably coupled to the ebullated bed hydroconversion reactor, the first separation zone, and the integrated hydrocracking/hydrofinishing reactor and configured to perform operations comprising2. The residuum ...

Integrated residuum hydrocracking and hydrofinishing

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the integrated hydrocracking/hydrofinishing reactor.

Integrated residuum hydrocracking and hydrofinishing

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor.

INTEGRATED RESIDUUM HYDROCRACKING AND HYDROFINISHING

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor. 1. A method for processing residuum , the method comprising:receiving a feed stream that comprises a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor;contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product;separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream;feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor;feeding the heavy hydrocarbon stream to a top portion of the integrated hydrocracking/hydrofinishing reactor;feeding an effluent stream from the integrated hydrocracking/hydrofinishing reactor to a second separation zone;separating, in a high temperature, high pressure separator of the second separation zone, the effluent stream into a light stream and a heavy oil stream;feeding the light stream to a top portion of a polishing hydrotreating reactor; andfeeding the heavy oil stream to a high temperature, low pressure separator of the second separation zone.2. The method of claim 1 , further comprising:combining, to form a mixed stream, the heavy hydrocarbon stream with a recycle gas ...

Jack with double high-pressure structure

A jack with a double high-pressure structure is provided, including a base, a pump body installed on the base, an oil cylinder, an oil drain valve, and a safety valve. The base is provided with a low-pressure check valve and a high-pressure check valve A. It is characterized in that a high-pressure check valve B is also installed on the base. The present invention can improve the safety performance during use and prolong the service life.

Paraxylene Production from Naphtha Feed

Increased paraxylene production through the use of a split feed reforming process, wherein hydrotreated naphtha is split into light, middle and heavy fractions. Each fraction is reformed separately to generate streams containing aromatic compounds. These streams can further be processed and can undergo dealkylation, transalkylation, disproportionation, isomerization, and separation steps to maximize paraxylene production. In addition, some streams are recycled or recombined in order to maximize paraxylene production.

Process for alkylation of isoparaffin with olefin

This invention relates to a process for alkylation of an isoparaffin with an olefin over a solid-acid catalyst, wherein at least two parallel reactors are used at the same time. When the solid acid catalyst in one or more reactors need to be regenerated, the catalyst is contacted in-situ in the reactor with a solvent to wash out the macromolecular hydrocarbons deposited on the surface of the catalyst in order to resume the high selectivity of catalyst in alkylation.

Paraxylene production from naphtha feed

Increased paraxylene production through the use of a split feed reforming process, wherein hydrotreated naphtha is split into light, middle and heavy fractions. Each fraction is reformed separately to generate streams containing aromatic compounds. These streams can further be processed and can undergo dealkylation, transalkylation, disproportionation, isomerization, and separation steps to maximize paraxylene production. In addition, some streams are recycled or recombined in order to maximize paraxylene production.

INTEGRATED RESIDUUM HYDROCRACKING AND HYDROFINISHING

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the integrated hydrocracking/hydrofinishing reactor. 1. A method for processing residuum , the method comprising:receiving a feed stream that comprises a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor;contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product;separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream;feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; andfeeding the heavy hydrocarbon stream to a top portion of the integrated hydrocracking/hydrofinishing reactor.2. The method of claim 1 , further comprising:combining, to form a mixed stream, the heavy hydrocarbon stream with a recycle gas stream prior to feeding the heavy hydrocarbon stream to the top portion of the integrated hydrocracking/hydrofinishing reactor; andfeeding the mixed stream to the top portion of the integrated hydrocracking/hydrofinishing reactor.3. The method of claim 1 , further comprising:prior to feeding the heavy hydrocarbon stream to the top portion of the integrated hydrocracking/hydrofinishing reactor, fractionating the heavy ...

Producing C6-C8 aromatics from FCC heavy naphtha

A method of forming C 6 -C 8 aromatics may include selectively dealkylating a Fluid Catalytic Cracking (FCC) heavy cut naphtha that has at least C 9+ aromatics to selectively crack C 2+ alkyl chains from the C 9+ aromatics, thereby forming the C 6 -C 8 aromatics. The selectively de-alkylated heavy cut naphtha is then combined with a FCC middle cut naphtha, and aromatics including the C 6 -C 8 aromatics are separated from the combined stream. A system for forming C 6 -C 8 aromatics may include a fluid catalytic cracking unit for producing a FCC heavy cut naphtha comprising at least C 9+ aromatics; a de-alkylation reactor for selectively cracking C 2+ alkyl chains from the C 9+ aromatics, thereby forming the C 6 -C 8 aromatics; and an aromatic extraction unit for extracting at least a portion of the C 6 -C 8 aromatics.

Integrated residuum hydrocracking and hydrofinishing

Techniques for processing residuum include receiving a feed stream that includes a residuum hydrocarbon fraction at an ebullated bed hydroconversion reactor; contacting the residuum hydrocarbon fraction with hydrogen and a hydroconversion catalyst in the ebullated bed hydroconversion reactor to produce a partially converted reactor effluent product; separating, in a first separation zone, the partially converted reactor effluent product into a distillate stream and a heavy hydrocarbon stream; feeding the distillate stream to a bottom portion of an integrated hydrocracking/hydrofinishing reactor; and feeding the heavy hydrocarbon stream to a top portion of the hydrofinishing reactor.

Evaluating black powder formation of hydrocarbon gas flowed through pipelines

Sales gas output from a glycol dehydration unit in a gas plant is flown into a sales gas pipeline. One or more operational parameters of the glycol dehydration unit are received. One or both of an amount of glycol carryover and an amount of water carryover in sales gas output from the glycol dehydration unit in the gas plant are determined based on the one or more operational parameters of the glycol dehydration unit. An amount of glycol and water co-condensation in the sales gas pipeline is determined based on one or more operational parameters of the sales gas pipeline and the one or both of the amount of glycol carryover and the amount of water carryover. An amount of black powder formation of the sales gas is determined based on the amount of glycol and water co-condensation.

Jack with Double High-pressure Structure

A jack with a double high-pressure structure is provided, including a base, a pump body installed on the base, an oil cylinder, an oil drain valve, and a safety valve. The base is provided with a low-pressure check valve and a high-pressure check valve A. It is characterized in that a high-pressure check valve B is also installed on the base. The present invention can improve the safety performance during use and prolong the service life. 1. A jack with a double high-pressure structure , comprising a base , a pump body installed on the base , an oil cylinder , an oil drain valve , and a safety valve; wherein the base is mounted with a low-pressure check valve and a first high-pressure check valve; and a second high-pressure check valve is further installed on the base.2. The jack with the double high-pressure structure according to claim 1 , wherein a pump core is mounted on the pump body installed on the base claim 1 , a spring and a fixed plate are installed on the pump core claim 1 , and a shell is installed on the fixed plate.3. The jack with the double high-pressure structure according to claim 1 , wherein an oil pass pipe is arranged in the base claim 1 , and a connecting pipe is arranged between the oil pass pipe and the oil cylinder; an oil inlet pipe is arranged between the oil pass pipe and the pump body claim 1 , and the low-pressure check valve and the first high-pressure check valve are installed in the oil pass pipe; and the second high-pressure check valve is installed in the connecting pipe.4. The jack with the double high-pressure structure according to claim 3 , wherein an outer cover is provided outside the oil cylinder claim 3 , the outer cover is fixedly installed on the base claim 3 , an oil inlet is arranged on the outer cover claim 3 , a piston rod is installed in the oil cylinder claim 3 , and a hydraulic oil is arranged between the oil cylinder and the outer cover.5. The jack with the double high-pressure structure according to claim 4 , ...

Evaluating black powder formation of hydrocarbon gas flowed through pipelines

Sales gas output from a glycol dehydration unit in a gas plant is flown into a sales gas pipeline. One or more operational parameters of the glycol dehydration unit are received. One or both of an amount of glycol carryover and an amount of water carryover in sales gas output from the glycol dehydration unit in the gas plant are determined based on the one or more operational parameters of the glycol dehydration unit. An amount of glycol and water co-condensation in the sales gas pipeline is determined based on one or more operational parameters of the sales gas pipeline and the one or both of the amount of glycol carryover and the amount of water carryover. An amount of black powder formation of the sales gas is determined based on the amount of glycol and water co-condensation.

Split hot-blast stove

本实用新型公开了一种分体式热风炉，包括燃烧机、二次燃烧炉和烟气换热装置，燃烧机的火焰喷嘴与二次燃烧炉的火焰接收口连通，二次燃烧炉的烟气出口与烟气换热装置的烟气入口连通，二次燃烧炉的炉壁内设有进气夹层，炉壁上安装一送风机，送风机的出风口与进气夹层的空气入口连通，进气夹层通过进风口与二次燃烧炉的炉膛连通。该分体式热风炉的热量损失小，热量利用率高，生物质颗粒燃烧充分，环保，并且方便调节烟气温度，适用于燃烧多种林业和农业生物质边角料制造的颗粒燃料不结渣。

Process for alkylating isoparaffins with olefins

Systems and methods for item recognition

Self-checkout vehicle systems and methods comprising a self-checkout vehicle having a camera(s), a weight sensor(s), and a processor configured to: (i) identify via computer vision a merchandise item selected by a shopper based on an identifier affixed to the selected item, and (ii) calculate a price of the merchandise item based on the identification and weight of the selected item. Computer vision systems and methods for identifying merchandise selected by a shopper comprising a processor configured to: (i) identify an identifier affixed to the selected merchandise and an item category of the selected merchandise, and (ii) compare the identifier and item category identified in each respective image to determine the most likely identification of the merchandise.

A high-efficiency agricultural fertilizer application device

Electric hydraulic floor jack

Electric hydraulic floor jack, further including a variable plunger structure provided on a motor base and an oil pump base. The variable plunger structure includes a piston hole formed in the oil pump base and communicating with an oil chamber and an oil inlet passage, a plunger sleeve provided at a port of the piston hole, a plunger slidably provided in the plunger sleeve, a U-shaped piston slidably provided in the piston hole, a valve trim slidably provided on the piston, a spring provided in the piston hole and sleeved on the valve trim, and an eccentric wheel provided on an output shaft of a speed reducer. With the variable plunger structure, the eccentric wheel pushes the plunger continuously. In cooperation with a restoring force of the spring, the plunger is driven to continuously make a linear reciprocating motion, thereby continuously opening and closing the check valve, and pumping oil into the cylinder to push the piston rod for lifting work.

Electric hydraulic floor jack

An electric hydraulic floor jack includes a variable plunger structure provided on a motor base and an oil pump base. The variable plunger structure includes a piston hole formed in the oil pump base and communicating with an oil chamber and an oil inlet passage, a plunger sleeve provided at a port of the piston hole, a plunger slidably provided in the plunger sleeve, a U-shaped piston slidably provided in the piston hole, a valve trim slidably provided on the piston, a spring provided in the piston hole and sleeved on the valve trim, and an eccentric wheel provided on an output shaft of a speed reducer. The plunger is driven by the eccentric wheel in cooperation with the spring to continuously make a linear reciprocating motion, thereby continuously opening and closing the check valve, and pumping oil into the cylinder to push the piston rod for lifting work.

Device and method for measuring viscosity coefficient of temperature changeable liquid by using air cushion guide rail ball lifting method

The invention relates to the technical field of physical experiment data measurement, and discloses a device and a method for measuring viscosity coefficient of temperature changeable liquid by using air cushion guide rail ball lifting method, which comprises an air cushion guide rail, an acrylic cylinder, an iron support and a temperature measuring instrument. According to the invention, the air-cushion guide rail itself can make an object move approximately in a straight line without resistance on the rail surface, so that the error caused by friction in the previous mechanical experiments is greatly reduced, and the experimental result is close to the theoretical value; on this basis, the air-cushion guide rail is modified, an adjustable nut is added at one end of the air-cushion guide rail to change the inclination angle of the air-cushion guide rail, and a magnetic level is placed on the air-cushion guide rail to record the inclination angle of the guide rail. By changing the inclination angle of the guide rail, the tension of the string connected to the slider can be changed. Accurately measuring the inclination angle of the guide rail is easy to control and distinguish the uniform motion of the ascending ball, which reduces the experimental error and improves the accuracy.

A fermentation device for producing agricultural fertilizer

Paraxylene production from naphtha feed

Increased paraxylene production through the use of a split feed reforming process, wherein hydrotreated naphtha is split into light, middle and heavy fractions. Each fraction is reformed separately to generate streams containing aromatic compounds. These streams can further be processed and can undergo dealkylation, transalkylation, disproportionation, isomerization, and separation steps to maximize paraxylene production. In addition, some streams are recycled or recombined in order to maximize paraxylene production.

Electric hydraulic floor jack

Systems and methods for item recognition

Self-checkout vehicle systems and methods comprising a self-checkout vehicle having a camera(s), a weight sensor(s), and a processor configured to: (i) identify via computer vision a merchandise item selected by a shopper based on an identifier affixed to the selected item, and (ii) calculate a price of the merchandise item based on the identification and weight of the selected item. Computer vision systems and methods for identifying merchandise selected by a shopper comprising a processor configured to: (i) identify an identifier affixed to the selected merchandise and an item category of the selected merchandise, and (ii) compare the identifier and item category identified in each respective image to determine the most likely identification of the merchandise.

Systems and methods for item recognition

An inkjet printer for marking animals in farms

A numerically controlled grinding device for machining

Systems and methods for item recognition

Self-checkout vehicle systems and methods comprising a self-checkout vehicle having a camera(s), a weight sensor(s), and a processor configured to: (i) identify via computer vision a merchandise item selected by a shopper based on an identifier affixed to the selected item, and (ii) calculate a price of the merchandise item based on the identification and weight of the selected item. Computer vision systems and methods for identifying merchandise selected by a shopper comprising a processor configured to: (i) identify an identifier affixed to the selected merchandise and an item category of the selected merchandise, and (ii) compare the identifier and item category identified in each respective image to determine the most likely identification of the merchandise.

Systems and methods for item recognition

Self-checkout vehicle systems and methods comprising a self-checkout vehicle having a camera(s), a weight sensor(s), and a processor configured to: (i) identify via computer vision a merchandise item selected by a shopper based on an identifier affixed to the selected item, and (ii) calculate a price of the merchandise item based on the identification and weight of the selected item. Computer vision systems and methods for identifying merchandise selected by a shopper comprising a processor configured to: (i) identify an identifier affixed to the selected merchandise and an item category of the selected merchandise, and (ii) compare the identifier and item category identified in each respective image to determine the most likely identification of the merchandise.

Paraxylene production from naphtha feed

Increased paraxylene production through the use of a split feed reforming process, wherein hydrotreated naphtha is split into light, middle and heavy fractions. Each fraction is reformed separately to generate streams containing aromatic compounds. These streams can further be processed and can undergo dealkylation, transalkylation, disproportionation, isomerization, and separation steps to maximize paraxylene production. In addition, some streams are recycled or recombined in order to maximize paraxylene production.

Evaluating black powder formation of hydrocarbon gas flowed through pipelines

Sales gas output from a glycol dehydration unit in a gas plant is flown into a sales gas pipeline. One or more operational parameters of the glycol dehydration unit are received. One or both of an amount of glycol carryover and an amount of water carryover in sales gas output from the glycol dehydration unit in the gas plant are determined based on the one or more operational parameters of the glycol dehydration unit. An amount of glycol and water co-condensation in the sales gas pipeline is determined based on one or more operational parameters of the sales gas pipeline and the one or both of the amount of glycol carryover and the amount of water carryover. An amount of black powder formation of the sales gas is determined based on the amount of glycol and water co-condensation.

Evaluating black powder formation of hydrocarbon gas flowed through pipelines

Sales gas output from a glycol dehydration unit in a gas plant is flown into a sales gas pipeline. One or more operational parameters of the glycol dehydration unit are received. One or both of an amount of glycol carryover and an amount of water carryover in sales gas output from the glycol dehydration unit in the gas plant are determined based on the one or more operational parameters of the glycol dehydration unit. An amount of glycol and water co-condensation in the sales gas pipeline is determined based on one or more operational parameters of the sales gas pipeline and the one or both of the amount of glycol carryover and the amount of water carryover. An amount of black powder formation of the sales gas is determined based on the amount of glycol and water co-condensation.

A sprayer for agricultural unmanned aerial vehicle

Point map registration using semantic information

Systems and techniques are provided for performing point map registration. For example, a process can include obtaining an image comprising a plurality of 3D points representing a scene and determining, based on the image, a first point map representing the scene. The process includes determining a first plurality of point groupings based on proximity of pairs of points of the first plurality of 3D points. The process includes obtaining a second point map comprising a second plurality of point groupings representing the scene. The process includes determining a correspondence between individual point groupings of the first plurality of point groupings and individual point groupings of the second plurality of point groupings. The process includes determining, based on the correspondence between individual point groupings of the first plurality and individual point groupings of the second plurality, an alignment transformation for aligning the first and the second plurality of 3D points.

Apparatus and methods for road network registration

Methods, systems, and apparatuses to determine a first topology of a reference skeleton model and a second topology of a sensed skeleton model. The first topology and the second topology each identifying and characterizing one or more nodes. In some examples, an apparatus may perform operations that adjust a positioning of one or more data points of the second dataset based at least on the one or more nodes of the first topology and the one or more nodes of the second topology.