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Date of Publication:2018-01-01

Journal:高校化学工程学报

Volume:32

Issue:5

Page Number:1090-1096

ISSN No.:1003-9015

Abstract:Checker wall of Claus furnace is useful in improving sulfur productivity. In order to explore the effects of checker wall on flow, heat transfer and reaction rate, mathematical models were established and numerical simulation of combustion in the furnace was studied by Fluent considering Claus furnaces with choke and checker wall, respectively. Advantages of checker wall were explored using realizable k-�� model and component transport equation, and improved checker wall was designed. Simulation results show that the checker wall can enhance gases mixing and hence increase the residence time of gases and improve sulfur productivity by 1%. Furthermore, the location and diversion procedure of checker wall can effectively extend the area of stable temperature by 3 m along the flow stream direction, and increase the stable temperature by 23 K, which enhances gas mixing and increase gas residence time, and sulfur productivity can increase by 7.6%. The flow field of the furnace is designed to increase sulfur productivity by improving the structure of checker wall, and theoretical basis is provided for optimizing checker wall structure design. ? 2018, Editorial Board of 'Journal of Chemical Engineering of Chinese Universities'. All right reserved.

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