Ni基催化剂上甲烷自热重整制合成气反应研究
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摘要
以γ-Al_2O_3为载体制备Ni基催化剂,并应用于甲烷自热重整制合成气反应,采用XRD和N_2吸附等表征手段研究该催化剂的基本结构。反应工艺条件研究结果表明,升高反应温度利于甲烷转化,产物中CO比例增加,反应体系能量损失加重;增加体系中水的添加量可以促进甲烷转化,利于H_2生成,反应需热增加;增加体系中氧气的添加量可以促进甲烷转化,抑制水转化,不利于生成CO,同时减少反应需热。
引文
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[2]张云洁,李金英.天然气制氢工艺现状及发展[J].广州化工,2012,40(13):41-42.
[3]Holladay J D,King D L,Wang Y.An overview of hydrogen production technologies[J].Catal Today,2009,139(4):244-260.
[4]王胜,王树东,袁中山,等.甲烷自热重整制氢热力学分析[J].燃料化学学报,2006,34(2):222-225.
[5]Lee S H D,Applegate D V,Ahmed S,et al.Hydrogen from natural gas:Part I-autothermal reforming in an integrated fuel processor[J].Int J Hydrogen Energy,2005,30(8):829-842.
[6]Ruiz J A C,Passos F B,Bueno J M C,et al.Syngas production by autothermal reforming of methane on supported platinum catalysts[J].Appl Catal A,2008,334(1/2);259-267.
[7]Souza M M V M,Schmal M.Autothermal reforming of methane over Pt/Zr02/Al203 catalysts[J].Appl Catal A,2005,281(1/2):19-24.
[8]Yuan Zhongshan,Ni Changjun,Zhang Chunxi,et al.Rh/MgO/Ce_(0.5)Zr_(0.5)O_2 supported catalyst for autothermal reforming of methane;the effects of ceria-zirconia doping[J].Catal Today,2009,146(1/2):124-131.
[9]Sadykova V A,Muzykantova V,Bobina A,et al.Oxygen mobility of Pt-promoted doped Ce02-Zr02solid solutions:characterization and effect on catalytic performance in syngas generation by fuels oxidation/reforming[J].Catal Today,2010,157(1/4):55-60.
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