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A kind of separation and recovery of SO from flue gas 2 with no x device and method

A technology for separation and recovery of SO2, which is applied in separation methods, dispersion particle separation, chemical instruments and methods, etc., can solve the problems that the membrane separation process has not been reported, and achieve the effects of small footprint, reduced energy waste, and easy maintenance

Active Publication Date: 2021-07-09
UNIV OF SCI & TECH BEIJING
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Problems solved by technology

[0004] At present, there are relatively mature membrane separation processes for the removal of hydrogen in natural gas and the separation and recovery of carbon dioxide in flue gas, but for SO 2 / NO x The membrane separation process has not been reported yet

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  • A kind of separation and recovery of SO from flue gas <sub>2</sub> with no <sub>x</sub> device and method
  • A kind of separation and recovery of SO from flue gas <sub>2</sub> with no <sub>x</sub> device and method
  • A kind of separation and recovery of SO from flue gas <sub>2</sub> with no <sub>x</sub> device and method

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[0106] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the embodiments and the accompanying drawings. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0107] On the contrary, the invention covers any alternatives, modifications, equivalent methods and schemes within the spirit and scope of the invention as defined by the claims. Further, in order to make the public have a better understanding of the present invention, some specific details are described in detail in the detailed description of the present invention below. The present invention can be fully understood by those skilled in the art without the description of these detailed parts.

[0108] This embodiment proposes a method for separating and recovering SO from flue gas 2 with NO...

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Abstract

The invention belongs to the technical field of flue gas pollutant recovery, in particular to a method for separating and recovering SO from flue gas 2 with NO x The device and method, the device includes: a first-stage membrane separation unit for separating NO in flue gas 2 Gas; second-stage membrane separation unit for separating NO gas and SO in flue gas 2 Gas; the first buffer tank; the flue gas analyzer group, used to analyze gas components; the valve group, used to control the flow of gas; the second buffer tank; the first gas collection tank; the first-stage membrane separation unit, the second A buffer tank, a second-stage membrane separation unit, a second buffer tank and a first gas collection tank are sequentially arranged on the main gas path of the device. The device aims at SO in the current industrial flue gas 2 with NO x The status quo of high value resource utilization and the solution to SO in desorbed gas 2 / NO x The technical requirements for effective separation can reduce energy waste, be economical and environmentally friendly, and have promotional value.

Description

technical field [0001] The invention belongs to the technical field of flue gas pollutant recovery, in particular to a method for separating and recovering SO from flue gas 2 with NO x A device and a method for separating and recovering SO from the desorbed gas obtained by purifying flue gas based on the adsorption method 2 with NO x . Background technique [0002] At present, the domestic energy application structure is mainly composed of fossil fuels such as coal and petroleum, and the smoke produced by the combustion of these fuels will cause serious pollution to the environment. SO in industrial flue gas 2 and NO x It is the main cause of air pollution and acid rain, but they have a high value of use in industry. SO 2 In addition to being used as the basic raw material for sulfuric acid and fertilizer production, it is also widely used in agricultural product processing (soaking solution, insurance solution), paper industry (bleaching agent), petrochemical (scouri...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/22B01D53/02
CPCB01D53/02B01D53/226B01D53/227B01D2053/221B01D2257/302B01D2257/404B01D2258/0283
Inventor 李子宜李俊刘应书章佳佳杨雄刘文海
Owner UNIV OF SCI & TECH BEIJING
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