Fluidized bed reactor

A fluidized bed reactor and reactor technology, applied in chemical instruments and methods, chemical/physical processes, etc., can solve problems such as high maintenance costs of circulating oil pumps, low reactor space utilization, and catalyst sinking and accumulation, etc., to achieve Shorten the residence time, improve the operation stability, and improve the effect of fluidization quality
CN101721961BActive Publication Date: 2012-01-25CHINA PETROLEUM & CHEM CORP +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
CHINA PETROLEUM & CHEM CORP
Publication Date
2012-01-25

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Abstract

The invention discloses a fluidized bed reactor comprising a reactor shell and a three-phase separator, wherein the three-phase separator is arranged at the upper part inside the reactor shell and is in a sleeve structure including an inner sleeve and an outer sleeve; the upper ends and the lower ends of the inner sleeve and the outer sleeve are in opened structures; the inner sleeve and the outer sleeve both comprise upper segments and lower segments which are connected with each other; the upper segments of the inner sleeve and the outer sleeve are both in reversed frustum-shaped structures, and the lower segments of the inner sleeve and the outer sleeve are both in cylinder-shaped structures; and an opening positioned on the upper end of the outer sleeve is higher than an opening positioned on the upper end of the inner sleeve. The fluidized bed reactor is mainly suitable for chemical reaction carried out under the condition that different liquid and gaseous matters contact with solid particles, has the advantages of large catalyst inventory, high reactor utility ratio, simple structure and easy operation and is suitable for long-periodic stable operation, and the like.
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Description

technical field

[0001] The invention relates to a gas-liquid-solid three-phase ebullating bed reactor, in particular to an improved three-phase ebullating bed hydrogenation for chemical reaction under the condition that different kinds of liquid and gas substances flow upward and contact with solid particles reactor. Background technique

[0002] The heavy oil fluidized bed hydrogenation reactor belongs to the gas, liquid and solid three-phase fluidized bed reactor, which can process heavy and low-quality raw material oil with high metal and high asphaltene content, and has the advantages of small pressure drop, uniform temperature distribution, and can maintain the whole operation The catalyst activity in the periodic reactor is uniform, and fresh catalyst can be added and spent catalyst can be taken out during operation.

[0003] US Re 25,770 describes a typical fluidized bed process, which adopts the operation mode of circulating oil pump, but this process method has the...

Claims

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