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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 7. Отображено 7.
21-04-2023 дата публикации

Method for preparing 1, 6-adipaldehyde, obtained product and reaction system

Номер: CN115991638A
Автор: ZHEN DONGXING, HOU YANBO, HOU SHUANDI, LIU LINGTAO, HAO ZHENFANG, ZHANG YINI
Принадлежит:

The invention discloses a method for preparing 1, 6-adipaldehyde, an obtained product and a reaction system, and relates to the technical field of fine chemical synthesis. The method comprises the following steps: mixing cyclohexene with a solvent, introducing ozone-containing gas, and reacting cyclohexene with ozone under the conditions of normal pressure and temperature of 70 DEG C below zero to 20 DEG C to obtain 1, 6-adipaldehyde; the solvent contains dimethyl sulfoxide and water. According to the method, the high selectivity of the green oxidizing agent ozone to olefin double bonds is utilized, cyclohexene is selectively oxidized in a mixed solvent system to prepare the 1, 6-adipaldehyde in one step, solid catalysts such as precious metal complexes and sodium periodate do not need to be introduced into a reaction system, and the preparation method is simple in process, green, environmentally friendly and free of pollution.

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Номер записи: 1
18-07-2023 дата публикации

Synthetic method of modified two-dimensional molybdenum sulfide nano material

Номер: CN116443933A
Автор: LIU SHIDA, HOU SHUANDI
Принадлежит:

The invention discloses a synthetic method of a modified two-dimensional molybdenum sulfide nano material. The synthetic method comprises the following steps: (1) performing hydrocarbon thermal reduction on activated carbon particles loaded with a molybdenum species and a second transition state metal precursor; (2) vulcanizing the activated carbon particles obtained in the step (1); (3) drying the sulfurized active carbon particles obtained in the step (2), and then carrying out high-temperature treatment in a nitrogen atmosphere; and (4) dispersing the obtained activated carbon particles subjected to high-temperature treatment in the step (3) into the dispersion liquid, then performing stripping treatment on the activated carbon particles by using ultrasonic waves, and then performing centrifugal separation to obtain supernatant liquid, namely the stable dispersion liquid containing the two-dimensional material. The method has the characteristics that modified single-layer or few-layer ...

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Номер записи: 2
09-05-2019 дата публикации

DESULFURIZATION CATALYST AND PREPARATION METHOD AND APPLICATION THEREOF

Номер: WO2019084741A1
Автор: LONG, Jun, HOU, Shuandi, LIN, Wei, SONG, Ye, TIAN, Huiping
Принадлежит:

A desulfurization catalyst and a preparation method and application thereof. The composition of the desulfurization catalyst at least includes: 1) a sulfur-storing metal oxide, 2) an inorganic binder, 3) a wear-resistant component, and 4) an active metal component. The catalyst has better stability and higher desulfurization activity.

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Номер записи: 3
10-09-2020 дата публикации

METHOD AND SYSTEM FOR PRODUCING LIGHT OLEFIN FROM POOR OIL

Номер: WO2020177652A1
Автор: HOU, Huandi, WEI, Xiaoli, LONG, Jun, DONG, Ming, ZHANG, Jiushun, HOU, Shuandi, CHEN, Xuefeng, LIANG, Jialin, LI, Jiguang, WANG, Cuihong, SHEN, Haiping, GONG, Jianhong, DAI, Lishun
Принадлежит:

A method and system for producing a light olefin from a poor oil. The method comprises the following steps: performing thermal conversion reaction on a poor oil in the presence of hydrogen to obtain a conversion product; separating the obtained conversion product to obtain a first separation product; separating the first separation product to obtain a modified oil and residues; performing hydrogenation modification on the obtained modified oil to obtain a hydrogenation modified oil; separating the hydrogenation modified oil to obtain a hydrogenation modified heavy oil; and performing catalytic pyrolysis on the hydrogenation modified heavy oil to obtain a catalytic pyrolysis product containing a light olefin. The method and system not only can achieve efficient and green conversion of a poor oil, but also can achieve high-value utilization of the poor oil, i.e., producing a light olefin.

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Номер записи: 4
27-10-2004 дата публикации

一种增产柴油和低碳烯烃的催化转化方法

Номер: CN0001173008C
Автор: HOU SHUANDI, XU KEJIA, ZHONG XIAOXIANG, SHUANDI HOU, KEJIA XU, XIAOXIANG ZHONG, 侯栓弟
Принадлежит:

... 一种增产柴油和低碳烯烃的催化转化方法，是使20～80重％的再生剂经圆台状过渡段2进入内输送管4，而其余的催化剂经圆台状过渡段2上的开孔进入环形空腔；汽油注入环形空腔，与其内的催化剂接触并反应；来自环形空腔的油剂混合物与来自内输送管的催化剂在外输送管的上部汇合并与烃油原料接触、反应，油剂混合物流经提升管7后，油气引入后续分离系统，积炭的催化剂经汽提、再生后循环使用。该方法可提高目的产物的收率。 ...

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Номер записи: 5
18-07-2023 дата публикации

Molybdenum sulfide-molybdenum carbide catalyst with carbon-based core-shell structure and preparation method of molybdenum sulfide-molybdenum carbide catalyst

Номер: CN116440932A
Автор: LIU SHIDA, HOU SHUANDI
Принадлежит:

The invention discloses a molybdenum sulfide-molybdenum carbide catalyst with a carbon-based core-shell structure and a preparation method thereof, the catalyst comprises a carbon carrier and an active center with molybdenum carbide as a core and molybdenum sulfide as a shell layer, the diameter of the active center is 10-50nm, and the thickness of the molybdenum sulfide shell layer is 0.6-5nm. The preparation method comprises the following steps: (1) impregnating activated carbon particles in an alcohol-water solution containing a molybdenum precursor, and then drying to obtain molybdenum-loaded activated carbon particles; (2) performing hydrocarbon thermal reduction on the activated carbon particles obtained in the step (1) in a hydrogen atmosphere to obtain activated carbon particles loaded with molybdenum carbide centers; (3) carrying out vulcanization treatment on the loaded activated carbon particles obtained in the step (2), and partially vulcanizing the outer surfaces of the molybdenum ...

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Номер записи: 6
22-09-2004 дата публикации

一种下行式烃油催化裂化方法

Номер: CN0001530423A
Автор: HOU SHUANDI, XU KEJIA, LONG JUN, SHUANDI HOU, KEJIA XU, JUN LONG, 侯栓弟
Принадлежит:

A down-flow catalytic cracking process for hydrocarbon oil includes such steps as spraying the raw hydrocarbon oil in an reactor by nozzle, atomizing in atomizing chamber, contacting with catalyst, reacting in reaction pipe, quick separating of oil mixture, introducing the oil gas to the followed separation system, and stripping and regenerating the used catalyst for cyclic use. It can increase the conversion power of heavy oil and improve the distribution of products.

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Номер записи: 7