Moving bed reactor device with catalyst capable of reacting continuously and being regenerated and use method thereof

A moving bed reactor and catalyst technology, applied in chemical instruments and methods, catalytic cracking, cracking, etc., to achieve the effect of flexible adjustment and wide application range

Inactive Publication Date: 2010-03-31
SEDIN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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  • Moving bed reactor device with catalyst capable of reacting continuously and being regenerated and use method thereof
  • Moving bed reactor device with catalyst capable of reacting continuously and being regenerated and use method thereof

Examples

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Embodiment 1

[0039] Example 1: Using catalytic cracking gasoline (FCC) modification to produce high-octane gasoline

[0040] An important problem facing FCC gasoline is the high content of olefins, reaching 40%-50%, while the national gasoline standard requires less than 35%. The IV standard and the standard trend in some developed countries are below 10%. The essence of FCC gasoline modification is to reduce the olefins in the gasoline fraction, that is, to further crack the olefins to generate ethylene, propylene, butene and other low-carbon olefins. The technical problem of the currently used molecular sieve catalyst cracking FCC gasoline process is that the catalyst surface and voids will be carbonized during the catalytic cracking reaction process, resulting in a decrease in catalyst activity, and the deactivated catalyst needs to be regenerated by burning carbon to improve the catalyst. Service life. Therefore, it is ideal to choose a moving bed reaction method and equipment that can ...

Embodiment 2

[0064] Example 2: Methanol to Aromatics (MTA)

[0065] Methanol to aromatics (MTA) is currently in a very hot period. Due to the vigorous development of coal chemical industry and coal-to-methanol in recent years, methanol-to-aromatics (MTA) is a good choice as a further expanded chemical product of methanol. The catalyst of methanol to aromatics (MTA) is currently also the choice of molecular sieve. Catalytic cracking is used. Because of the carbon formation in the reaction process, the catalyst has to be regenerated repeatedly to ensure its activity. This process naturally selects the catalyst to continuously react with The form of regenerated moving bed is ideal. This example still uses the ZSM-5 type molecular sieve catalyst made by the Shanxi Institute of Coal Chemistry, Chinese Academy of Sciences (see Patent No. 200710185473.3 for the specific preparation method).

[0066] Catalyst parameters:

[0067] Catalyst shape spherical

[0068] Catalyst size 0.2-0.5μm

[0069] A catal...

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Abstract

The invention relates to a moving bed reactor device with a catalyst capable of reacting continuously and being regenerated. The top end of a moving bed reactor (3) of the moving bed reactor device iscommunicated with an upper lock hopper (2) through a lower cone valve (10) of the upper lock hopper (2); the upper lock hopper (2) is communicated with a measuring hopper (1) through an upper cone valve (9) of the upper lock hopper (2); the lower part of the upper lock hopper (2) is provided with an upper lock hopper replacement gas inlet (16); the upper part of the upper lock hopper (2) is provided with an upper lock hopper replacement gas outlet (17); the lower part of the moving bed reactor (3) is provided with a rotary feed plate (8), a gas distribution cone (7) and a feed gas inlet (14);the upper part of the moving bed reactor (3) is provided with a reaction gas outlet (15); the bottom end of the moving bed reactor (3) is communicated with a lower lock hopper (4) through an upper cone valve (11) of the lower lock hopper (4); the lower lock hopper (4) is communicated with a catalyst regeneration reactor (5) through a lower cone valve (12) of the lower lock hopper (4); the lower part of the lower lock hopper (4) is provided with a lower lock hopper replacement gas inlet (20); the upper part of the lower lock hopper (4) is provided with a lower lock hopper replacement gas outlet (19); the bottom end of the catalyst regeneration reactor (5) is provided with a rotary discharge valve (6); the lower part of the catalyst regeneration reactor (5) is provided with a regeneration gas inlet (20); and the upper part of the catalyst regeneration reactor (5) is provided with a regeneration gas outlet (21). The moving bed reactor device can be adjusted flexibly and has a wide application range, and a solid catalyst can be used in reactions continuously and regenerated.

Description

Technical field [0001] The invention belongs to a moving bed reactor device, in particular to a moving bed reactor device in which a solid catalyst can continuously participate in chemical reactions and regeneration and a method of use thereof. Background technique [0002] The activity and service life of catalysts used in petrochemical processes are as long as one or two years, or as few as tens or hundreds of hours. Some catalysts can prolong their lifespan through repeated regeneration. In the petrochemical production process, for this kind of high-activity short-period solid catalyst, two fixed-bed reactors can usually be switched for operation, or a moving-bed reactor for continuous reaction and regeneration can be used. Since the catalyst can obtain a higher utilization rate in the moving bed reactor, the moving bed reactor should be preferred in general. A good moving bed reactor and its device should not only realize the continuous reaction and regeneration of the soli...

Claims

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Application Information

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IPC IPC(8): B01J8/12C10G11/16
Inventor 乔海星李文怀陆宏伟胡津仙赵世平张侃邓金明郭可宇
Owner SEDIN ENG
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