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A fluidized bed reaction and regeneration device and solid acid alkylation method

A technology of fluidized bed reaction and fluidized bed reactor, which is applied in the direction of catalyst regeneration/reactivation, chemical instruments and methods, physical/chemical process catalysts, etc. It can solve the problems of easy deactivation of solid acid catalysts and achieve balance Effects of activity, improved economy, and improved selectivity

Active Publication Date: 2018-03-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the solid acid alkylation process, since the solid acid catalyst is easily deactivated, in order to maintain a certain reactivity, frequent regeneration operations are required. Therefore, it is necessary to develop a reactor technology that can realize the continuous reaction and regeneration process. It is very important to promote the development of solid acid alkylation technology

Method used

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  • A fluidized bed reaction and regeneration device and solid acid alkylation method
  • A fluidized bed reaction and regeneration device and solid acid alkylation method
  • A fluidized bed reaction and regeneration device and solid acid alkylation method

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specific Embodiment approach

[0020] The fluidized bed reaction and regeneration device provided by the present invention includes an upflow fluidized bed reactor, a liquid-solid separator and a liquid phase regenerator connected in sequence, and the bottom of the liquid phase regenerator communicates with the bottom of the upflow fluidized bed reactor , the inside of the liquid-phase regenerator is provided with an isolation cylinder or an isolation baffle, which is divided into a co-current regeneration zone and a counter-current regeneration zone in the liquid-phase regenerator, and the drainage pipe at the bottom of the liquid-solid separator extends into the Co-current regeneration zone bottom.

[0021] In the fluidized bed reaction and regeneration device provided by the present invention, the bottom of the liquid-solid separator is also provided with a deactivated catalyst outlet, and the deactivated catalyst outlet is communicated with a catalyst deep regenerator through a flow regulating valve, a s...

Embodiment 1

[0059] in the attached figure 1 The solid acid alkylation reaction is carried out on the liquid-solid fluidized bed medium-scale experimental device shown. Among them, the inner diameter of the shell of the upflow fluidized bed reactor 1 is 200mm, and the height is 15m; the liquid-solid separator 2 is a sedimentation separator, the inner diameter is 700mm, the height of the straight pipe section is 1500mm, and the height of the inverted cone section is 500mm; The diameter of the pipeline 5 is 150mm, and the distance that the diversion pipeline 5 extends into the liquid phase regenerator is 7m; the diameter of the liquid phase regenerator is 400mm, and the height is 8m. The diameter of the cylindrical separating plate is 250mm, and the height is 5.5m. The bottom end of the cylindrical separation plate is closed and placed at a position 1500mm above the straight pipe section at the bottom of the liquid phase regenerator; the third regeneration medium inlet 14 and its distributor...

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Abstract

A fluidized bed reaction and regeneration device and solid acid alkylation method, comprising an upflow fluidized bed reactor, a liquid-solid separator and a liquid phase regenerator connected in sequence, the bottom of the liquid phase regenerator and the upflow fluidized bed The bottoms of the reactors are connected, and the inside of the liquid phase regenerator is provided with an isolation cylinder or an isolation baffle, which is divided into a co-current regeneration zone and a countercurrent regeneration zone in the liquid phase regenerator. The drainage pipe at the bottom of the liquid-solid separator Extend into the bottom of the co-current regeneration zone. And a solid acid alkylation reaction method using the above device. A co-current regeneration zone and a countercurrent regeneration zone are set in the liquid phase regenerator to realize efficient contact regeneration of the deactivated catalyst, and at the same time the regeneration medium is isolated from the reaction product material, which greatly reduces the cost of fractionation; the solid acid alkylation provided by the invention The reaction method can run continuously and stably, the selectivity of the target product is improved, and the economic benefit of the operation of the device is improved.

Description

technical field [0001] The invention relates to a liquid-solid fluidized bed reaction device and method, more specifically, to a liquid-solid fluidized bed reaction and regeneration device used in the solid acid alkylation reaction process and a solid acid alkylation Response method. Background technique [0002] At present, one of the most important tasks of the oil refining industry is to provide transportation fuel. As an important transportation fuel, gasoline is widely used in transportation and other industries. With the increase of gasoline consumption and increasingly stringent environmental protection standards, how to solve the problem of clean gasoline production has become a hot topic of research and discussion. [0003] Under the action of strong acid, isoparaffins (mainly isobutane) and olefins (C 3 ~C 5 Alkenes) as raw materials to generate alkylate technology provides the possibility of clean production of gasoline. Alkylate oil has a high octane number a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J8/24C10G50/00B01J38/58
Inventor 胡立峰龙军侯栓弟毛俊义唐晓津张久顺张哲民慕旭宏赵志海李永祥郑博朱振兴
Owner CHINA PETROLEUM & CHEM CORP