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Efficient fluidized catalytic converting steam stripping device

A technology of fluidized catalysis and stripper, applied in chemical instruments and methods, chemical/physical processes, distillation and separation, etc., can solve the problems of reducing oil and gas concentration difference, affecting stripping effect, and difficult to improve stripping effect, etc., to achieve Improvement of yield and reduction of regeneration load

Inactive Publication Date: 2005-05-04
石宝珍
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The upper and lower sides of each baffle are filled with catalysts, and there is catalyst exchange between the openings and the gaps between the baffles. The back-mixing of the catalysts on the upper and lower sides of each baffle is obvious, and the oil-gas concentration difference between the gas phase and the catalyst is greatly reduced, making it difficult to improve the stripping effect.
In addition, in the existing technology, although the steam is injected at multiple points, the steam is connected in series up and down in the stripping and directly mixed. After the oily steam in the next stage is mixed with the newly injected steam in the previous stage, the difference in oil and gas concentration between the steam and solid phases is significantly reduced. , affecting the stripping effect

Method used

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  • Efficient fluidized catalytic converting steam stripping device
  • Efficient fluidized catalytic converting steam stripping device

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Experimental program
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Effect test

Embodiment 1

[0021] Embodiment 1. A high-efficiency fluidized catalytic conversion stripper, comprising a cylinder body 1 with multi-layer baffles 2 inside, a steam inlet 3 on the lower part of the cylinder body 1, and a waste gas outlet on the upper part. The inner side of the upper part of cylinder body 1 is provided with an initial stripper in parallel, the side of the cylinder body 4 of the initial stripper is provided with an oil catalyst inlet pipe 5, the lower part is provided with a steam inlet 6, and the upper part is provided with a waste gas outlet, the initial stripper cylinder body 4 The upper end of the inner side is not higher than the upper end of the cylinder 1, and the cylinder 4 of the initial stripper is provided with a multi-layer baffle 7. A partition 8 is arranged between two adjacent baffles 7 in the middle of the cylinder 1, and a vent hole 9, a weir 12, and an agent-reducing pipe 10 are arranged on the partition 8, and the agent-reducing pipe 10 extends out of the ...

Embodiment 2

[0022] Embodiment 2. In this embodiment, the upper end of the cylinder body 4 of the initial stripper is higher than the upper end of the cylinder body 1, and the lower end of the initial stripper is connected with the cylinder body 1, and the catalyst after the initial stripping directly enters the cylinder body 1 for subsequent stage steaming. carry. Others are the same as embodiment 1.

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PUM

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Abstract

The present invention relates to a high-efficiency fluid catalytic conversion stripper. Said equipment comprises cylinder body, interior of said cylinder body is equipped with several layers of baffle plates, lower portion of the cylinder body is equipped with steam inlet, and its upper portion is equipped with waste gas outlet, the interior of said cylinder body is equipped with more tan two stages of stripping stages, the upper portion of said cylinder body is equipped with primary stripper, and the side of cylinder body of said primary stripper is equipped with inlet of catalyst with oil, its lower portion is equipped with steam inlet, and its upper portion is equipped with waste gas outlet, the upper end or lower end of cylinder body of primary stripper can be communicated with the cylinder body of stripper. Said invention can raise the yield rate of light oil.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment for a hydrocarbon feedstock fluidized catalytic conversion device, in particular to a high-efficiency fluidized catalytic conversion stripper. Background technique [0002] In the settler of the hydrocarbon feedstock fluidized catalytic conversion device, when the reaction is over, the catalyst after gas-solid separation still entrains some oil and gas, resulting in an increase in the amount of coke, energy consumption, and light oil yield. In this regard, steam stripping is often used to replace the oil and gas in the catalyst. The research results show that if all the oil and gas are replaced from the catalyst, the amount of coke can be reduced by about one-third, and the ratio of hydrogen to carbon in the coke can be reduced to 6%. Currently applied technology is still far from this goal. [0003] The oil-gas displacement and desorption in the stripper is a typical gas-solid phase...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D3/00B01J8/12
Inventor 石宝珍
Owner 石宝珍
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