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Method and device for treating nitrous oxide tail gas using fuel cell

A fuel cell and nitrous oxide technology, which is applied in fuel cells, chemical instruments and methods, and nitrous oxide capture, can solve problems such as high energy consumption and complex systems, and achieve clean and efficient treatment, wide application prospects, and excellent performance Enhanced effect

Active Publication Date: 2022-06-17
SOUTHEAST UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Although the nitrous oxide in the system has been reused, the system is too complicated and consumes a lot of energy

Method used

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  • Method and device for treating nitrous oxide tail gas using fuel cell
  • Method and device for treating nitrous oxide tail gas using fuel cell
  • Method and device for treating nitrous oxide tail gas using fuel cell

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Embodiment Construction

[0028] The specific embodiments of the present invention will be described below with reference to the accompanying drawings.

[0029] A device for treating nitrous oxide tail gas using a fuel cell of the present application includes a solid oxide fuel cell, the structure of which is as follows figure 1 As shown, it includes a casing 4, a fuel cell tube 2 and a cathode bed material 3; the casing 4 is provided with a cathode gas inlet 5 and a cathode gas outlet 1, and the cathode gas includes nitrous oxide to be treated; the casing 4 is provided with At least one fuel cell tube 2, both ends of the fuel cell tube 2 are provided with an anode gas inlet 9 and an anode gas outlet 8; a cavity 10 is formed between the inner wall of the casing 4 and the cathode outer wall of the at least one fuel cell tube 2, and the cathode bed The material 3 is filled in the cavity 10; the shell 4 is provided with an air distribution plate 6, and the cathode gas flows from the cathode gas inlet 5 in...

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Abstract

The invention relates to a method and device for treating nitrous oxide tail gas by using a fuel cell, comprising a solid oxide fuel cell, the structure of which includes a casing, a fuel cell tube and a cathode bed material; the casing is provided with a cathode gas inlet and a cathode gas At the outlet, the cathode gas includes nitrous oxide to be treated; at least one fuel cell tube is arranged in the housing, and a cavity is formed between the inner wall of the housing and the outer cathode wall of the at least one fuel cell tube, and the cathode bed material is filled in the cavity; There is an air distribution plate inside the casing, and the cathode gas flows from the cathode gas inlet through the air distribution plate and enters the cavity, which can make the cathode bed material in a fluidized state; the two ends of the fuel cell tube are respectively fixedly connected with the air distribution plate and the casing . Through the fluidization of the cathode bed material, the reaction intensity in the cavity is enhanced, and at the same time, the temperature unevenness caused by the decomposition and heat generation of nitrous oxide is solved, and the decomposition rate of nitrous oxide and the safety of the fuel cell are improved.

Description

technical field [0001] The invention relates to the technical field of nitrous oxide tail gas treatment, in particular to a method and device for treating nitrous oxide tail gas by using a fuel cell. Background technique [0002] N 2 O is listed as one of the six major greenhouse gases because it severely depletes the ozone layer and causes the greenhouse effect, of which the global warming potential (GWP) is CO 2 310 times. During the production of nitric acid and adipic acid, the content of nitrous oxide in the waste gas produced can reach 50%. If the waste gas is not treated, about 0.25 tons of nitrous oxide gas will be emitted for every ton of adipic acid produced. [0003] N 2 O removal pathways include high-temperature thermal decomposition, nonselective catalytic reduction, and direct catalytic decomposition. Among them, direct catalytic decomposition is considered to be the most promising route because N 2 O is decomposed into nitrogen and oxygen under the actio...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/32B01D53/56H01M8/0662H01M8/2425
CPCB01D53/32B01D53/56H01M8/0662H01M8/2425B01D2257/402B01D2258/0208Y02E60/50
Inventor 肖睿崔东旭吴石亮李桃
Owner SOUTHEAST UNIV
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