Last modified: 2014-03-09
Abstract
Secondary reforming is an essential process for hydrogen production in ammonia plant. Two processes occur simultaneously in secondary reformer, combustion of hydrogen followed by conversion of methane to carbon dioxide and hydrogen. Combustion process provides heat for the endothermic methane conversion reaction. Therefore optimum performance of combustion section and especially the secondary reformer burner is important. This paper aims to model hydrogen combustion process, temperature and gas flow patterns in combustion section of secondary reformer by modifying the configuration of the typical industrial burner using CFD software. Simulation results are compared with local industry data as well. It is concluded that to obtain optimum burner performance number of holes of the burner should be increased and by entering air at an angel mixing in combustion zone enhances.
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