Title:
AMMONIA INJECTION OPTIMIZATION METHOD AND APPARATUS BASED ON SCR REACTION KINETIC MODEL, AND MEDIUM
Document Type and Number:
WIPO Patent Application WO/2024/021943
Kind Code:
A1
Abstract:
Disclosed in the present invention are an ammonia injection optimization method and apparatus based on an SCR reaction kinetic model, and a medium. The method comprises: obtaining flue gas data; according to the obtained flue gas data, verifying a CFD model of an SCR denitration system, performing visual analysis on a trajectory and an impact area of an injected ammonia fluid, defining an injected ammonia flow influence coefficient, and determining a correspondence between different partitions/nozzles of an ammonia injection gird and an upstream cross section area of a catalyst; solving for an SCR reaction kinetic model to obtain a mathematical relationship between the concentration of NH3 on the upstream cross section of the catalyst and the NOx concentration of an SCR outlet; and coupling an optimization matrix equation of injected ammonia flow influence coefficients of different partitions/nozzles, and performing quantitative solution to obtain an optimized ammonia injection amount corresponding to the ammonia injection grid taking the most uniform SCR outlet NOx concentration distribution as an objective. In the present invention, the optimized ammonia injection amount corresponding to the ammonia injection grid based on the outlet NOx concentration distribution characteristic can be quantitatively solved. The present invention can be widely applied to the technical field of flue gas SCR denitration.
Inventors:
LU ZHIMIN (CN)
YAN CHAO (CN)
TANG WEN (CN)
LI BOHANG (CN)
ZHONG SHANGWEN (CN)
YAO SHUNCHUN (CN)
CHEN HOUHU (CN)
YANG JIANMIN (CN)
YANG JIE (CN)
YAN CHAO (CN)
TANG WEN (CN)
LI BOHANG (CN)
ZHONG SHANGWEN (CN)
YAO SHUNCHUN (CN)
CHEN HOUHU (CN)
YANG JIANMIN (CN)
YANG JIE (CN)
Application Number:
PCT/CN2023/101788
Publication Date:
February 01, 2024
Filing Date:
June 21, 2023
Export Citation:
Assignee:
UNIV SOUTH CHINA TECH (CN)
GUANGDONG RED BAY POWER GENERATION CO LTD (CN)
GUANGDONG RED BAY POWER GENERATION CO LTD (CN)
International Classes:
G16C10/00; G16C20/10
Foreign References:
| CN115346610A | 2022-11-15 | |||
| CN113689917A | 2021-11-23 | |||
| CN112100933A | 2020-12-18 | |||
| CN112705046A | 2021-04-27 |
Other References:
ZHIMIN LU, LI WENQING; LIAO YONGJIN; YAO SHUNCHUN; CHENG MINGTAO: "Influential Factors-based Optimization Simulation of Ammonia Injection in SCR DeNOx System", PROCEEDINGS OF THE CSEE, vol. 41, no. 14, 26 March 2021 (2021-03-26), pages 4923 - 4930, XP093133517, DOI: 10.13334/j.0258-8013.pcsee.201751
Attorney, Agent or Firm:
JIAQUAN IP LAW (CN)
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