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RISS 인기검색어
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- 저자 : 이승현(Seunghyeong Lee) (검색결과 1 건)
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김희선(Hee Seon Kim),신동현(Dong Hyun Shin),이승현(Seunghyeong Lee),송순호(Soonho Song),전광민(Kwang Min Chun) 대한기계학회 2013 대한기계학회 춘추학술대회 Vol.2013 No.12
The goal of this study is to experimentally evaluate the effects of different types of catalysts, GHSV (Gas Hourly Space Velocity) and O<SUB>2</SUB>/C ratio of reactants on the performance of a methane reformer, which was designed and built to produce syngas in the laboratory. Two different types of catalysts were employed ?a precious metal catalyst (monolith type) consisting of 1wt% Rh/CeO<SUB>2</SUB>-ZrO<SUB>2</SUB> and a mixed catalyst consisting of 1wt% Rh/CeO<SUB>2</SUB>-ZrO<SUB>2</SUB> (monolith type) and 18wt% Ni on calcium aluminate catalyst (pellet type). The O<SUB>2</SUB>/C ratio of reactants was varied from 0.25 to 1.0 and GHSV was ranged from 5,000h<SUP>-1</SUP> to 10,000h<SUP>-1</SUP>. For each experimental condition, the catalyst temperature (the temperature of the reaction mixture) and concentrations of product gases (H<SUB>2</SUB>, CO, CO<SUB>2</SUB>) were measured. The results showed that both catalyst temperature and syngas concentration were increased as GHSV increased up to 10,000h<SUP>-1</SUP>, and the precious metal catalyst showed the better performance than the mixed catalyst. However, performance of the reformer was deteriorated when the O<SUB>2</SUB>/C ratio was increased above 0.75.
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