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三维有序大孔LaNiO_3钙钛矿催化剂制备及其甲烷部分氧化制合成气催化性能

Preparation of three-dimensionally ordered macroporous LaNiO_3 perovskite catalyst and its catalytic performance for partial oxidation of methane to syngas
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摘要 以聚甲基丙烯酸甲酯(PMMA)胶体晶体为模板合成三维立体有序大孔LaNiO_3钙钛矿催化剂,采用XRD、TPR、BET、TG进行表征,并在固定床反应器中评价其催化甲烷部分氧化制合成气的反应性能。结果表明:在常压、空速21.6L/(g·h)下,三维立体有序大孔LaNiO_3钙钛矿催化剂的催化活性高于柠檬酸法制备的催化剂,在800℃转化率达到87%,且该催化剂表现出优异的抗积炭性能。 A three-dimensional ordered macroporous LaNiO3perovskite catalyst was prepared by using polymethyl methacrylate （PMMA） colloidal crystal as template. The prepared catalyst was characterized by XRD, TPR, BET and TG, and its catalytic performance for partial oxidation of methane to syngas （POM） was investigated in a fixed bed reactor. The results showed that compared with the LaNiO3prepared with citric acid as template, the three-dimensional ordered macroporous LaNiO3perovskite catalyst had higner activity, reaching a methane conversion of 87% under atmospheric pressure, 800℃ and GHSV of 21.6L/（g·h）, and exhibiting excellent anti-coking ability.
作者 马倩 段倩林 丁光月 王俊文 丁传敏 刘平 张侃 MA Qian l;DUAN Qian-lin;DING Guang-yue;WANG Jun-wen;DING Chuan-min;LIU Ping;ZHANG Kan(College of Chemistry and Chemical Engineering,Taiyuan University of Technology,Taiyuan 030024,China;Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China)
机构地区 太原理工大学化学化工学院 中国科学院山西煤炭化学研究所
出处 《天然气化工—C1化学与化工》 CAS CSCD 北大核心 2018年第3期1-5,共5页 Natural Gas Chemical Industry
基金 国家自然科学基金(21706178)
关键词 甲烷部分氧化 LANIO3 钙钛矿催化剂 三维立体有序大孔 积炭 partial oxidation of methane LaNiO3 perovskite catalyst three-dimensional ordered macropore carbon deposition
分类号 O643.3 [理学—物理化学] TQ426 [化学工程]
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天然气化工—C1化学与化工
2018年 第3期

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