Catalytic conversion steam stripping device

A catalytic conversion and stripper technology, applied in catalytic cracking, chemical instruments and methods, cracking, etc., can solve the problems of low stripping efficiency, improve contact efficiency and mass transfer efficiency, reduce impurity content, and improve processing capacity Effect

Active Publication Date: 2010-06-16
CHINA PETROCHEMICAL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of this invention is to provide a kind of catalytic conversion stripper, to solve the problem that the stripping efficiency of existing catalytic conversion stripper is not high

Method used

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  • Catalytic conversion steam stripping device

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Embodiment Construction

[0023] see figure 1 A catalytic reforming stripper 1 of the present invention is shown. This catalytic conversion stripper is a kind of external riser type catalytic conversion stripper (the riser reactor of the catalytic conversion device is located outside the catalytic conversion stripper, figure 1 Not shown in ), used as a settler stripper of a catalytic converter, for stripping spent catalyst entrained with oil gas from the settler. The catalytic conversion stripper is referred to as the stripper for short. figure 1 The shown stripper 1 is arranged below the settler 10, and the stripper 1 includes a cylinder 9, and the cylinder 9 is provided with a stripping steam distributor and a group of stripping baffles. The top of the cylinder 9 is connected to the bottom of the settler 10; the bottom of the cylinder 9 is provided with a head (generally a hemispherical head or a conical head), and the bottom of the head is provided with a standpipe or inclined pipe 11 , connected...

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Abstract

The invention discloses a catalytic conversion steam stripping device used by a catalytic conversion device in the field of oil refining and petro-chemical industry, solving the problem of low stripping efficiency of the conventional steam stripping device. The steam stripping device adopts a vane-type inner ring steam stripping baffle plate (2) and a vane-type outer ring steam stripping baffle plate (3), and both of which are composed of four, six or eight single vane-type inner ring steam stripping baffle plates and four, six or eight single vane-type outer ring steam stripping baffle plates which are arranged alternately up and down. The projections of the adjacent lateral peripheral area of an upper single vane-type inner ring steam stripping baffle plate and a lower single vane-type inner ring steam stripping baffle plate which are adjacent to each other and the projections of an upper single vane-type outer ring steam stripping baffle plate and a lower single vane-type outer ring steam stripping baffle plate which are adjacent to each other on the horizontal plane are overlapped respectively, and a connecting rib plate (4) is arranged between the lateral peripheral areas and the horizontal planes respectively to form a radial passage (5). The steam stripping device is suitable for the steam stripping of the reclaimable catalyst of entrained oil gas and the regenerated catalyst of the impurity of entrained gas in various processes of catalytic conversion processes.

Description

technical field [0001] The invention belongs to the field of catalytic conversion reactions in petroleum refining and petrochemical industries, and relates to a catalytic conversion stripper used in a catalytic conversion device. Background technique [0002] In the fluidized catalytic cracking (FCC) settler, because the catalyst is a porous substance, the pores between the catalyst particles and the inside of the particles are full of oil and gas; this part of the oil and gas accounts for about 2w% to 4w% (w%) of the total product. Indicates the weight percentage), if the coke equivalent to an increase of 2w%-4w% is not removed, the yield of light oil is reduced. The research results of Exxon company show that if all the strippable oil and gas are stripped from the catalyst, the amount of coke will be reduced by 20w% to 40w%; the coke yield will increase due to incomplete stripping, which will increase the coke load of the regenerator ; Especially for heavy oil catalytic c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J8/00B01J8/34C10G11/00
Inventor 张振千李国智张立新雷世远刘昱田耕乔立功夏金法马艳梅
Owner CHINA PETROCHEMICAL CORP
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