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Catalytic cracker without settler

A catalytic cracking unit, non-settling technology, applied in the petrochemical field, can solve the problems of large oil and gas retention space, easy to cause coking, unspecified and other problems, and achieve the effect of shortening the residence time, eliminating the retention of coke and coke, and avoiding temperature drop.

Active Publication Date: 2009-05-13
CHINA UNIV OF PETROLEUM (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

However, this patent does not specify the specific structure of the swirl arm type gas-solid rapid separation device, and the oil and gas stagnation space outside the closed cover is too large, which is still easy to cause coking

Method used

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  • Catalytic cracker without settler
  • Catalytic cracker without settler
  • Catalytic cracker without settler

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Embodiment Construction

[0058] When using a fluidized catalytic cracking unit without a settler of the present invention, the raw oil 14 and the back-refined oil 15 enter the riser 2, and are mixed with the regenerated catalyst from the regenerator that is input through the regeneration inclined pipe 1, and are heated in the lifting steam or lifting dry Under the lifting action of gas 15, the mixture flows upwards, and the catalytic cracking reaction occurs at the same time. The reaction oil gas and catalyst enter the swirl-type quick separator 6 at the outlet of the riser, and are ejected tangentially downward through the spiral arm 17 of the swirl-type quick separator 6. The rotary motion of the gas-solid mixture is formed in the annular space between the partitioning cylinders 5, and most of the catalyst in the mixture is separated under the action of the centrifugal force field and falls to the stripping section 13 along the inner wall of the outer cylinder 11. In the stripping section 13, the ca...

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Abstract

The present invention relates to fast oil gas and catalyst separation in hydrocarbon material fluid catalytic cracking, and is especially one catalytic cracker without settler. The catalytic cracker without settler features the fast eddy flow separator in the outlet of the riser tube, the cyclone separator connected serially to the upper end of the fast eddy flow separator and the V-shaped leg structure below the fast eddy flow separator. The catalytic cracker can realize the efficient fast gas-solid separation in the separating efficiency up to 99.99 % and average oil gas residence time shortened to 2-3 sec, and has less scaling, compact structure and low cost.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and relates to a fluid catalytic cracking device for hydrocarbon raw materials, in particular to a rapid separation device for oil gas and catalyst in the fluid catalytic cracking process of hydrocarbon raw materials. Background technique [0002] The fluid catalytic cracking process is one of the important oil lightening processes in the oil refining industry. The catalytic cracking process mainly includes three parts: reaction-regeneration system, fractionation system and absorption stabilization system, and the reaction-regeneration system is its core. The main equipment in the typical reaction regeneration part includes riser reactor, settler and regenerator. [0003] The gas-solid rapid separation device is installed at the top outlet of the riser reactor of the fluidized catalytic cracking unit of the refinery to realize the separation of oil gas and catalyst. On the one han...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G11/18B01J8/24B01J8/08
Inventor 魏耀东卢春喜高金森宋健斐时铭显
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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