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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Применить Всего найдено 10. Отображено 10.
02-05-2019 дата публикации

CATALYTIC CRACKING METHOD FOR HIGH YIELD OF ISOBUTANE AND/OR LIGHT AROMATIC HYDROCARBONS

Номер: WO2019080791A1
Автор: XU, Youhao, WANG, Xin, ZHANG, Yuying, LIU, Tao, BAI, Xuhui, DAI, Lishun, ZHANG, Zhigang, LIANG, Jialin, JIANG, Nan
Принадлежит:

A catalytic cracking method for a high yield of isobutane and/or light aromatic hydrocarbons, comprising the following steps: a) providing catalytic cracking feedstock oil, the amount of cycloalkanes being bicyclic or higher in the catalytic cracking feedstock oil being greater than 25% by weight; b) making the catalytic cracking feedstock oil sequentially undergo a first catalytic cracking reaction and a second catalytic cracking reaction in different reaction conditions to obtain a catalytic cracking reaction product; c) separating the catalytic cracking reaction product to obtain a liquefied gas fraction containing isobutane and a gasoline fraction containing light aromatic hydrocarbons; and d) recovering the isobutane from the liquefied gas fraction and/or the light aromatic hydrocarbons from the gasoline fraction.

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Номер записи: 1
23-01-2020 дата публикации

METHOD FOR CATALYTIC CRACKING HYDROCARBON OIL AND SYSTEM THEREFOR

Номер: WO2020015602A1
Автор: GONG, Jianhong, ZHANG, Zhigang, WEI, Xiaoli
Принадлежит:

Disclosed are a method for catalytic cracking a hydrocarbon oil and a system therefor. The method comprises a step of bringing a hydrocarbon oil raw material into contact and reacting same with a catalytic cracking catalyst in a reactor comprising a dilute phase transport bed and a fast fluidized bed that are connected in series, wherein, in the fast fluidized bed, the axial solid fraction ε of the catalyst is controlled in a range of about 0.1 to about 0.2. When used for catalytic cracking a hydrocarbon oil raw material, particularly a heavy raw oil, the method and the system of the present application have a low yield for a dry gas and a coke, and a good product distribution.

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Номер записи: 2
06-06-2023 дата публикации

Catalyst regeneration equipment and regeneration method

Номер: CN116212971A
Автор: ZHANG ZHIGANG, WEI XIAOLI, LIU XIANLONG
Принадлежит:

The invention relates to catalyst regeneration equipment and a regeneration method. The catalyst regeneration equipment comprises a green coke reactor, an afterburning area and a regenerator. When the regeneration equipment and method are used for a fluidized catalytic cracking reaction with less green coke, not only is heat balance in the reaction-regeneration process realized, but also the catalyst is uniform in temperature rise and free of local hot spots in the coke burning process of the regenerator, and the physical and chemical properties of the catalyst are not damaged.

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Номер записи: 3
23-01-2020 дата публикации

METHOD, REACTOR AND SYSTEM FOR CATALYTIC CRACKING OF HYDROCARBON OIL

Номер: WO2020015603A1
Автор: GONG, Jianhong, ZHANG, Zhigang, WEI, Xiaoli
Принадлежит:

Disclosed are a method, reactor and system for the catalytic cracking of a hydrocarbon oil. The method comprises: a step of bringing a hydrocarbon oil feedstock into contact with a catalytic cracking catalyst in a reactor comprising one or more fast fluidized reaction zones and then reacting same, wherein at least one of the fast fluidized reaction zones of the reactor is a fully-concentrated phase reaction zone, and throughout the fully-concentrated phase reaction zone, the axial solid fraction ε of the catalyst is controlled to be within the range of approximately 0.1 to approximately 0.2. When the method, reactor and system of the present application are used for a catalytic cracking reaction of a hydrocarbon oil, especially a heavy feedstock oil, there is a high oil agent contact efficiency and a good catalytic reaction selectivity, and the yields of a dry gas and coke can be effectively reduced, while the yields of high value-added products such as ethylene and propylene are increased ...

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Номер записи: 4
09-05-2023 дата публикации

Catalytic conversion method for producing propylene and high aromatic gasoline by co-processing waste plastic oil and heavy oil

Номер: CN116083119A
Автор: SONG BAOMEI, WEI XIAOLI, LIU XIANLONG, ZHANG ZHIGANG
Принадлежит:

The invention provides a catalytic conversion method for producing propylene and high aromatic gasoline by co-processing waste plastic oil and heavy oil, which comprises the following steps: contacting the waste plastic oil with a low-temperature spent catalyst to obtain a reaction oil agent, contacting the reaction oil agent with a low-temperature regenerant, a hot regenerant and a dechlorinating agent, and carrying out catalytic conversion reaction and dechlorination reaction, first reaction oil gas and a first spent catalyst are obtained; separating the first reaction oil gas to obtain low-chlorine plastic oil; petroleum hydrocarbons and a second catalyst are subjected to a catalytic conversion reaction, and second reaction oil gas and a semi-spent catalyst are obtained; performing catalytic conversion reaction on the second reaction oil gas and the semi-spent catalyst to obtain third reaction oil gas and a second spent catalyst; the low-chlorine plastic oil and a second catalyst are ...

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Номер записи: 5
06-06-2023 дата публикации

Catalytic cracking reactor, catalytic cracking system and catalytic cracking method

Номер: CN116218561A
Автор: WEI XIAOLI, ZHANG ZHIGANG, GONG JIANHONG
Принадлежит:

The invention relates to a catalytic cracking reactor, a catalytic cracking system and a catalytic cracking method. The catalytic cracking reactor sequentially comprises an optional pre-lifting zone and a reaction zone from bottom to top, and the reaction zone comprises at least one reducing reaction section and an outlet zone. With the adoption of the catalytic cracking reactor and the system, chemical raw materials such as ethylene and propylene can be efficiently produced from light petroleum hydrocarbon, transformation, development and extension of refinery plants from oil refining to chemical raw material production are assisted, the problem of shortage of petrochemical raw materials is solved, and the economic benefits of the refinery plants are improved. When the reactor and the system are used for the catalytic cracking reaction, the contact efficiency of the raw materials and the catalyst is high, the catalytic reaction selectivity is good, the yield of high value-added products ...

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Номер записи: 6
09-05-2023 дата публикации

Catalytic conversion method for simultaneous dechlorination and desiliconization of waste plastic oil

Номер: CN116083117A
Автор: SONG BAOMEI, WEI XIAOLI, LIU XIANLONG, ZHANG ZHIGANG
Принадлежит:

The invention relates to a catalytic conversion method for simultaneous dechlorination and desiliconization of waste plastic oil. The method comprises the following steps: feeding preheated waste plastic oil and water vapor into the middle lower part of a fluidized bed reactor, sequentially contacting with a catalyst fed from the bottom of the fluidized bed reactor and a dechlorinating agent fed from the middle part of the fluidized bed reactor, and carrying out catalytic conversion reaction and dechlorination reaction to obtain reaction oil gas and a spent catalyst; separating the reaction oil gas to obtain plastic generated oil; introducing the spent catalyst into a regenerator for scorching regeneration to obtain a regenerant, and returning the regenerant to the bottom of the fluidized bed reactor; wherein the catalyst comprises a binder and a low-activity substance, and the mass ratio of the binder to the low-activity substance is 1: (0.05-0.5); the binder is silica sol and/or alumina ...

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Номер записи: 7
06-06-2023 дата публикации

Catalytic cracking regeneration equipment and regeneration method suitable for maintaining heat balance

Номер: CN116212973A
Автор: GONG JIANHONG, WEI XIAOLI, ZHANG ZHIGANG
Принадлежит:

The invention relates to catalytic cracking regeneration equipment and a regeneration method suitable for maintaining heat balance, the catalytic cracking regeneration equipment comprises an afterburner and a regenerator, an outlet of the afterburner is in fluid communication with an inlet of the regenerator, so that materials from the afterburner can flow into the regenerator; wherein the afterburner is provided with a to-be-regenerated catalyst inlet, an oxygen-deficient gas inlet and a fuel oil inlet; the regenerator is provided with an oxygen-enriched gas inlet; and the bottom of the afterburner is communicated with the bottom of the regenerator through an external catalyst circulating pipe. When the regeneration equipment and method are used for a fluidized catalytic cracking reaction with less green coke, not only is heat balance in the reaction-regeneration process realized, but also the catalyst is uniform in temperature rise and free of local hot spots in the coke burning process ...

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Номер записи: 8
25-04-2023 дата публикации

Catalytic hydrogen production and low-carbon olefin production method

Номер: CN116004274A
Автор: GONG JIANHONG, WEI XIAOLI, ZHANG ZHIGANG, LI FUCHAO, YU JINGCHUAN
Принадлежит:

The invention relates to a method for catalytic hydrogen production and low-carbon olefin production, which comprises the following steps: mixing a hydrocarbon raw material with water vapor, introducing into a fluidization reactor to contact with a catalyst, and carrying out catalytic decomposition reaction to obtain a reactant flow and a carbon-containing catalyst; carrying out gas-solid separation on reaction oil gas obtained by the catalytic decomposition reaction and the deactivated catalyst; separating the reaction oil gas to obtain products containing hydrogen, CO, CO2, low-carbon olefins and other hydrocarbons; and feeding the deactivated catalyst into a regenerator for regeneration, after the deactivated catalyst is burnt and regenerated, returning the deactivated catalyst to the fluidization reactor for recycling, and separating regenerated flue gas to obtain CO and CO2. According to the method, the low-value hydrocarbon raw material is converted into the hydrogen and the low-carbon ...

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Номер записи: 9
06-06-2023 дата публикации

Fluidized catalytic cracking regenerator and regeneration method

Номер: CN116212974A
Автор: ZHANG ZHIGANG, GONG JIANHONG, WEI XIAOLI
Принадлежит:

The invention relates to a fluidized catalytic cracking regenerator and a regeneration method. The fluidized catalytic cracking regenerator sequentially comprises a pre-lifting area, a coke generation area, a pre-combustion area and a main combustion area from bottom to top. When the regenerator and the method are used for a fluidized catalytic cracking reaction with less green coke, not only can heat balance in the reaction-regeneration process be realized, but also the catalyst is uniform in temperature rise and free of local hot spots in the coke burning process of the regenerator, and the physical and chemical properties of the catalyst are not damaged.

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Номер записи: 10