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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 3. Отображено 3.
14-04-2023 дата публикации

Catalyst for catalytic cracking of waste plastics and preparation method thereof

Номер: CN115957828A
Автор: ZHU JIANHUA, XU QIANG, WU BENCHENG
Принадлежит:

The invention relates to the technical field of catalysts, in particular to a catalyst for catalytic cracking of waste plastics and a preparation method of the catalyst. The preparation method comprises the following steps: A) roasting and screening the FCC waste catalyst; b) mixing the FCC waste catalyst treated in the step A) with an acid solution for reaction; c) performing chambering modification on the FCC waste catalyst treated in the step B); and D) loading a metal oxide on the FCC waste catalyst treated in the step C), and roasting to obtain the catalyst for waste plastic catalytic cracking. According to the method, the FCC waste catalyst is activated through the steps, the physicochemical property of the FCC waste catalyst is greatly improved, the accessibility and the utilization rate of active sites of the catalyst are improved, the catalyst for catalytic cracking of the waste plastics is applied to catalytic cracking of the waste plastics, the high cracking conversion rate can ...

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Номер записи: 1
07-04-2023 дата публикации

Waste plastic catalytic cracking method and system

Номер: CN115926832A
Автор: ZHU JIANHUA, XU QIANG, WU BENCHENG
Принадлежит:

The invention relates to the technical field of waste plastic recycling, in particular to a waste plastic catalytic cracking method and system. The waste plastic catalytic cracking system comprises: a reactor; a raw material inlet is formed in the bottom of the reactor; a catalyst feeding hole and a gas-solid separation device are arranged at the top of the reactor; the preheating furnace is connected with a raw material inlet of the reactor; the gasification furnace is connected with an inlet of the preheating furnace through a first pipeline; the raw material tank is connected with the first pipeline at the inlet of the preheating furnace through a second pipeline; an air supply device; the air supply device is connected with the preheating furnace; the primary condensing device is connected with a gas outlet of the gas-solid separation device; and the liquid collecting device is connected with an outlet of the primary condensing device. According to the waste plastic catalytic cracking ...

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Номер записи: 2
13-06-2023 дата публикации

Method for producing petrochemical products by using waste plastics

Номер: CN116254128A
Автор: ZHU JIANHUA, HAO QINGQUAN, WU BENCHENG, YAO LU, XU QIANG, LIU ZONGPENG
Принадлежит:

The invention belongs to the field of environmental protection, and particularly relates to a method for producing petrochemical products by using waste plastics. The method comprises the following steps that waste plastics are sequentially subjected to anhydrous cleaning pretreatment, multi-stage liquefaction, catalytic cracking, hydrofining, secondary cracking and product separation, and different types of petrochemical products are obtained. According to the method provided by the invention, solid waste plastics separated from garbage can be converted into low-carbon olefins, aromatic hydrocarbons, fuel oil and other products by utilizing a series of technological processes such as anhydrous cleaning pretreatment, multi-stage liquefaction, catalytic cracking, hydrofining, secondary cracking and product separation; and high-value utilization of the waste plastics is realized.

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Номер записи: 3