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Micro-cyclone liquid collecting method and device for regeneration gas of flue gas and carbon dioxide capture system

A carbon dioxide and regenerative gas technology, applied in chemical instruments and methods, separation methods, inorganic chemistry, etc., can solve problems such as high pressure drop, complexity, and uneconomical

Inactive Publication Date: 2011-07-06
EAST CHINA UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing aerosol particle capture methods include swirling flow separator and electric trap. The pressure drop of the former is generally 500-600Pa, even as high as 1000Pa or more. The existing technology cannot be used for flue gas carbon dioxide capture. In the collection system, first, the pressure drop is too high, and the flue gas with low partial pressure cannot support such a high pressure drop consumption; second, if the existing cyclone separator technology is to be used, the flue gas must be pressurized, complex and uneconomical
As for the electric trap, because of the high water content of the regenerated gas, it is easy to cause safety hazards, and the cost is too high, so there is no economical and applicable electric trap in the project

Method used

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  • Micro-cyclone liquid collecting method and device for regeneration gas of flue gas and carbon dioxide capture system
  • Micro-cyclone liquid collecting method and device for regeneration gas of flue gas and carbon dioxide capture system

Examples

Experimental program
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Effect test

Embodiment 1

[0048] Example 1: Process package of 1 million tons / year flue gas recovery carbon dioxide device of Sinopec Nanhua Group Research Institute Process flow:

[0049] This technique has adopted device of the present invention, and its technological process is as above figure 1 shown.

[0050] The process uses the HL / G ultra-low pressure drop micro-swirl flow separator independently developed by East China University of Science and Technology to remove the aerosol particles entrained in the regeneration gas. The following table shows the physical parameters of the inlet material of the ultra-low pressure drop micro-rotary flow separator:

[0051] project

name

parameter

1

Processing capacity

63640Nm 3 / h

2

operating temperature

40℃

3

operating pressure

50kpa

4

N 2 content

0.5％

[0052] 5

CO 2 content

99.5％

6

SO 2 content

3

7

moisture...

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Abstract

The invention relates to a micro-cyclone liquid collecting method and device for regeneration gas of a flue gas and carbon dioxide capture system. The method comprises the following steps: (a) carrying out air cooling and water cooling on the regeneration gas from a regenerating column so as to convert the serotonin solution-containing saturated steam carried in the regeneration gas into fog drops, thus obtaining regeneration gas carrying aerosol particles; (b) performing gas-liquid micro-cyclone separation on the regeneration gas carrying aerosol particles so as to capture the aerosol particles carried in the regeneration gas so as to obtain aerosol particle-removed regeneration gas; and (c) collecting the captured aerosol particles into a liquid, and directly returning the liquid to the serotonin solution system together with the serotonin solution output from the bottom of a regenerating tower.

Description

technical field [0001] The invention belongs to the field of energy and environment, and relates to a micro-swirl liquid collection method for regeneration gas of a flue gas carbon dioxide capture system, in particular, to a method for liquefying and adding saturated steam containing compound amine solution entrained in the regeneration gas The method of removal, and the apparatus used to carry out the method. Background technique [0002] With the development of economy and society, the air pollution and greenhouse effect caused by the burning of fossil fuels have seriously threatened the earth environment on which human beings depend. Global warming and greenhouse effect are the common challenges facing the sustainable development of all countries. [0003] According to the report of IPCC (The Intergovernmental Panel on Climate Change) (United Nations Intergovernmental Panel on Climate Change), the CO that causes global warming 2 、CH 4 , N 2 O, Hydrofluorocarbon 4 types...

Claims

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Application Information

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IPC IPC(8): B01D5/00B01D45/16C01B31/20C01B32/50
CPCY02A50/20
Inventor 沈其松汪华林张艳红马良王剑刚黄渊陈聪黄聪
Owner EAST CHINA UNIV OF SCI & TECH
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