Analyzing and Comparing Energy and Exergy of POXR and SMR Reactors for Producing Hydrogen from Methane Gas

سال انتشار: 1396
محل انتشار: مجله پردازش گاز، دوره: 5، شماره: 1
کد COI اختصاصی: JR_GPJU-5-1_003
زبان مقاله: انگلیسی
تعداد مشاهده: 210

نویسندگان

Islamic Azad University, Central Tehran Branch, Tehran, Iran

چکیده

The POXR and SMR methods adopted in producing hydrogen from methane gas are simulated and exergy analysis of both the processes are run for comparison. The effective parameters of the feeding materials ratio and the system temperature for maximizing hydrogen production and increasing efficiency are assessed here. Influenced by the changes in these parameters the unit efficiency is increased up to ۷۶%. The efficiency of POXR and SMR processes are calculated for new ratios. The results indicate that SMR process has higher exergy efficiency than POXR process. Exergy efficiency of SMR and POXR processes are obtained as to ۷۳.۲ and ۶۶.۹, respectively, where the SMR efficiency process is increased by ۲.۶% because of the changes in the feeding material ratio and temperature. Highest destruction of exergy in methanator reactor in SMR process is due to high temperature of reaction caused by irreversibility from chemical reactions. Exergy destruction is reduced at high temperature and unit molar ratio.

کلیدواژه ها

Hydrogen production unit, exchange reaction of methane and steam, partial oxidation, Modeling, Simulation, Exergy

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