| Ni基六铝酸镧LaNiAl11O19催化剂表面甲烷CO2的重整积炭速率 |
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| 引用本文： | 徐占林,刘光,刘延,毕颖丽,甄开吉.Ni基六铝酸镧LaNiAl11O19催化剂表面甲烷CO2的重整积炭速率[J].化学研究与应用,2003,15(2). |
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| 作者姓名： | 徐占林 刘光 刘延 毕颖丽 甄开吉 |
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| 作者单位： | 1. 吉林师范大学化学系,吉林,四平,136000
2. 吉林大学化学系,吉林,长春,130023 |
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| 基金项目： | 国家自然科学基金资助项目(29973012) |
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| 摘 要： | 甲烷二氧化碳重整制合成气反应过程中,催化剂表面积炭是制约催化反应顺利进行的关键因素。研究催化剂表面积炭物种及积炭速率,找出影响催化剂表面积炭的动力学因素,对建立合理的催化重整反应体系,完善催化剂表面积炭的动力学理论具有重要的理论和实际意义。目前有关催化剂表面积炭速率的研究报道较少1,2]。Ｎｉ基六铝酸盐催化剂对甲烷二氧化碳重整制合成气具有很好的催化活性和稳定性3,4]。本文利用Ｘ 射线光电子能谱(ＸＰＳ)和热重分析(ＴＧＡ)技术,在还原态Ｎｉ基六铝酸镧ＬａＮｉＡｌ11Ｏ19催化剂表面研究了甲烷裂解积炭和甲烷二氧…
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| 关 键 词： | 甲烷 二氧化碳 积炭 XPS TGA |
Study on rate of deposited carbon over Ni base hexaaluminate LaNiAl11O19 catalyst during CO2 reforming of methane |
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| XU Zhan lin,LIU Guang,LIU Yan,BI Ying li,ZHEN Kai ji.Study on rate of deposited carbon over Ni base hexaaluminate LaNiAl11O19 catalyst during CO2 reforming of methane[J].Chemical Research and Application,2003,15(2). |
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| Authors: | XU Zhan lin LIU Guang LIU Yan BI Ying li ZHEN Kai ji |
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| Abstract: | In this paper,the kinds and amount of carbon deposited over Ni base hexaaluminate LaNiAl 11 O 19 catalyst,after both CH 4 decomposition and CO 2 reforming of methane,was determined by means of X ray photoelectron spectroscopy (XPS) and thermogravimetric analysis(TGA) techniques,respectively.Over the catalyst,the rates of carbon deposited vs reaction time were also investigated during the reaction.Two carbon forms were produced,and graphitic carbon was the main and inactive carbon. |
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| Keywords: | Methane carbon dioxide carbon deposition X ray photoelectron spectroscopy thermogravimetric analysis |
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