第46卷第4期
HAOMRALGSAONOC 天然气及其凝液的利用
石油与天然气化工
CHEMICALENGINEERING OF OIL & GAS
生物质甘油经气化制甲烷 Ni-Ce/Al.O3催化剂研究
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赵浩阳徐成华游俊杰黄桑胡晓东李俊洁刘建英刘洁
成都信息工程大学大气环境模拟与污染控制四川省高校重点实验室
摘要采用浸渍法制备了助剂Ce掺杂的Ni/AlO：催化剂，用于甘油重整气甲烷化反应，分别采用BET、XRD、H2-TPR、CO2-TPD等手段对催化剂进行了表征,并考察了Ce掺杂量、甲烷化温度、在线运行时间对Ce掺杂Ni/AlOa催化甲烷化性能的影响。结果表明，掺杂的Ce会优先占据Ni/Al2O：催化剂的微孔，抑制活性组分Ni与载体AOa相互作用而生成尖晶石NiAl2O4，促进表面高度分散的活性Ni的生成，其催化还原性、甲烷化性能得以提高。3%（w)Ce掺杂的Ni/Al:O：在甘油重整气甲烷化反应中最佳温度范国为275～300℃，C0和C02转化率分别可达99%和75%以上，每千克甘油经水蒸气重整、甲烷化反应后生成的甲烷量达到570L以上。
关键词甘油重整气甲烷化Ni/Al2O：催化剂Ce掺杂甲烷
中图分类号：TE624.9
D0I:10.3969/i.issn.1007-3426.2017.04.007
文献标志码：A
StudyonNi-Ce/Al2Oscatalystsformethaneproductionfrom
reforminggasesofbiomassglycerol
ZhaoHaoyang,Xu Chenghua,You Junjie,Huang Can，
Hu Xiaodong, Li Junjie, Liu Jianying , Liu Jie
Air Enuironmental Modeling amd Pollution Controlling Key Laboratory of Sichuan Higher Education Institutes, Chengdu University of Information Technology + Chengdu, Sichuan, Chind
Abstract: Ce-modified Ni/Al: Os catalysts for methanation of glycerol reforming gases were prepared by impregnation, and characterized by BET, XRD, H2-TPR and CO2-TPD respectively . And the effects of Ce amount, methanation temperature and time-on-stream on the catalytic properties of Ce-modified Ni /Al O: in the glycerol reforming gases to methane were also investigated. The results indicated that the introduced Ce species preferentially occupied on the surface of micro-pores of Ni/Al O3 catalysts, inhibited the strong interaction between active Ni species and support Al2 Oa to spinel NiAl: O: , and promoted the formation of highly-dispersed active Ni species . Therefore, the Ce-modified Ni/Al: Os catalysts exhibited a higher catalytic property in methanation. For example, Ni/Al Os modified by 3 wt% of Ce exhibited an excellent catalytic stability at 275-300 C , received ratios of conversion towards CO and CO 2 with above 99% and 75% respectively . It was estimated that 1 kg biomass glycerol could produce 570 L of methane through the steam reforming and methanation according to the results in present work
Key words : glycerol reforming gases, methanation, Ni/Al2 Os catalyst, Ce modification, methane
基金项目：四川省教育厅重大培育项目"温室气体CO：加氢制甲醇催化剂及其工艺研究”(14CZ0020）。作者简介，赵浩阳（1989一），在读研究生，主要从事环境催化的研究
通信作署黎华(1972一），教授，硕土导师，主要从事大气污染控制、环境催化等领域的研究。E-mail：xch@cuit.edu.cn