Method and device for removing particles in biomass pyrolysis liquid fluidized bed reactor

A technology of ebullated bed reactor and biomass pyrolysis, which is applied in chemical instruments and methods, feeding devices, chemical/physical processes, etc., can solve the problems of inability to achieve catalyst particle classification, complex process, and inability to achieve catalyst drying reduction to reduce the risk of coking, protect the environment and save resources

Active Publication Date: 2019-07-19
HENAN BUF BIOENERGY CO LTD +2
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  • Claims
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Problems solved by technology

[0005] In order to solve the technical problems existing in the prior art that catalyst particle classification cannot be realized, catalyst drying reduction cannot be realized, and the process is complicated, the present invention provides a method and device for removing particles in a biomass pyrolysis liquid ebullating bed reactor

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  • Method and device for removing particles in biomass pyrolysis liquid fluidized bed reactor
  • Method and device for removing particles in biomass pyrolysis liquid fluidized bed reactor

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Embodiment

[0039] The present invention is further described below in conjunction with specific examples. For the experimental methods without specific conditions indicated in the following examples, the conventional conditions or the conditions suggested by the manufacturer are usually followed. All percentages and parts are by weight unless otherwise indicated.

[0040] 30,000 tons / year biomass pyrolysis fluid ebullating bed hydrogenation unit discharges 30kg / h of oil-containing catalyst online, including 15kg / h of oil, about 1kg / h of catalyst powder, about 2kg / h of structurally incomplete catalyst, and about 12kg of structurally complete catalyst / h. According to the method and device of the present invention, the particles in the ebullated bed reactor of biomass pyrolysis liquid are removed, and its specific operation process and effect are described as follows:

[0041] 1) Implementation process

[0042] Implement with reference to the method of the present invention, specificall...

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Abstract

The invention discloses a method and device for removing particles in a biomass pyrolysis liquid fluidized bed reactor. The method comprises the following steps: A) performing primary cyclone classification to realize classification of catalyst micropowder and catalyst particles; b) performing primary filtration to separate the catalyst micropowder from conveying oil; c) performing secondary cyclone classification to realize classification of a structurally incomplete catalyst with a structurally complete catalyst; d) performing secondary filtration to separate the structurally incomplete catalyst from conveying oil; and E) mixing the structurally complete catalyst and a fresh catalyst, and adding the formed mixture into a reactor for use. The invention further provides a device for removing particles in the biomass pyrolysis liquid fluidized bed reactor. According to the method and device disclosed by the invention, the requirements of realizing particle classification and realizing the drying reduction of a separated catalyst are met, the foaming and collision of a reactor bed caused by catalyst micropowder are effectively avoided, and the coking risk is reduced.

Description

technical field [0001] The invention belongs to the field of biomass energy and oil product processing, and relates to a method and device for treating micropowder, structurally incomplete catalysts and structurally complete catalysts in biomass pyrolysis liquid ebullating bed hydrogenation exhaust catalysts, and specifically relates to a A method and device for removing particles from a biomass pyrolysis liquid ebullated bed reactor. Background technique [0002] From the rapid pyrolysis process of straw and wood, biomass pyrolysis liquid products can be obtained; high-quality fuel oil can be obtained by hydrogenating them. Since the biomass pyrolysis solution is easy to condense and coke, and the catalyst life is short, it is advisable to use ebullating bed reactor technology to carry out hydrogenation upgrading. However, in the process of hydrogenation and upgrading of ebullating bed biomass pyrolysis liquid, due to the fully mixed flow circulation state in the reactor, ...

Claims

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Application Information

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IPC IPC(8): B01J8/20B01J4/00C10G49/10B01J8/18B01J8/00
CPCB01J4/001B01J8/20C10G49/10B01J8/0015B01J8/1872
Inventor 付鹏波朱静怡汪华林李立权袁远平陈崇刚赵颖李剑平李俊杰晁君瑞郑旭晖
Owner HENAN BUF BIOENERGY CO LTD
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