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Serial multi-stage process and its compact equipment for fast gas-solid separation and settling

A gas-solid rapid separation and settling device technology, applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve problems such as easy coking, large oil and gas retention space, etc., to eliminate oil and gas retention space and product distribution Improve and avoid the effect of coking

Inactive Publication Date: 2004-11-17
CHINA UNIV OF PETROLEUM (BEIJING) +1
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  • Abstract
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  • Application Information

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Problems solved by technology

In U.S. Patent No. 5,314,611 (1994), there is also a cyclone arm type gas-solid rapid separation with a closed cover, which can realize efficient and rapid separation of catalysts and rapid extraction of oil and gas, but this patent does not specify the cyclone. The specific structure of the flow 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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  • Serial multi-stage process and its compact equipment for fast gas-solid separation and settling
  • Serial multi-stage process and its compact equipment for fast gas-solid separation and settling
  • Serial multi-stage process and its compact equipment for fast gas-solid separation and settling

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Embodiment 3

[0042] The main difference between Embodiment 3, Embodiment 2 and Embodiment 1 is: Embodiment 2 uses multiple parallel cyclone separators 20 to replace the secondary cyclone type quick separation 4 of Embodiment 1, and uses cyclone separator material leg 81 to replace the lower Material pipe 8; embodiment 3 adopts multi-tubular cyclone separator 30 to replace the secondary cyclone type quick separation 4 of embodiment 1.

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Abstract

A fast gas-solid separating and depositing process and apparatus used for outlet of lift pipe in fluidized catalytic cracking technology is disclosed. Its apparatus is composed of fast cyclone separator, feeding pipe, the combination of cyclone separator and cyclone pipe, and settling equipment. Its stage-1 fast cyclone separator, stage-1 stripping segment, stage-2 stripping segment, stage-2 fast cyclone separator, gas collecting chamber and oil-gas pipeline are serially connected. Its advantages include small size of settling equipment, short stay time of oil (gas) in settling equipment to prevent coking and improve distribution of products.

Description

[0001] Involved areas [0002] The invention belongs to the field of petrochemical technology, and relates to an oil refining and chemical process and its equipment, in particular to a method and device for rapid separation of gas and solid at the riser outlet of the fluidized catalytic cracking process and a settler. Background technique [0003] At the outlet of the riser of the fluidized catalytic cracking reaction system in the refinery, a gas-solid rapid separation device is installed to realize the separation of catalyst and oil and gas, and terminate unnecessary excessive reaction. There are currently two types of such separation devices. The first type is inertial gas-solid rapid separation device, which relies on the gas-solid two-phase inertial difference generated when oil and gas containing a large number of catalyst particles change the flow direction sharply to achieve gas-solid separation. Typical inertial gas-solid rapid separation devices have inverted L-type,...

Claims

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Application Information

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IPC IPC(8): B01D45/12C10G11/18C10G47/30
Inventor 卢春喜张立新魏耀东陈俊武时铭显张韩金有海南春祥赵合俊
Owner CHINA UNIV OF PETROLEUM (BEIJING)
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