李振花^1,2, 谢春芳^1,2, 王玮涵^1,2, 王保伟^1,2, 马新宾^1,2
AuthorsHTML:李振花^1,2, 谢春芳^1,2, 王玮涵^1,2, 王保伟^1,2, 马新宾^1,2
AuthorsListE:Li Zhenhua^1,2, Xie Chunfang^1,2, Wang Weihan^1,2, Wang Baowei^1,2, Ma Xinbin^1,2
AuthorsHTMLE:Li Zhenhua^1,2, Xie Chunfang^1,2, Wang Weihan^1,2, Wang Baowei^1,2, Ma Xinbin^1,2
Unit:1. 绿色合成与转化教育部重点实验室，天津 300350；2. 天津大学化工学院，天津 300350
Unit_EngLish:1. Key Laboratory for Green Chemical Technology of Ministry of Education, Tianjin 300350, China
2. School of Chemical Engineering and Technology, Tianjin University, Tianjin 300350, China
Abstract_Chinese:采用挤出法对CeO₂-Al₂O₃载体和MoO₃/ZrO₂催化剂进行了成型处理并研究了成型工艺对高温、低温催化剂耐硫甲烷化性能的影响, 考察了不同成型助剂对负载型Mo基催化剂成型效果和耐硫甲烷化活性的影响, 并对所制备的成型催化剂进行稳定性考察．结果表明, 铈铝复合载体的适宜成型条件是水粉质量比约0.45～0.55、黏合剂为10% (质量分数, 下同)的拟薄水铝石, 胶溶剂为10% 的硝酸, 润滑剂为1% 的田菁粉; MoO₃/ZrO₂低温催化剂的成型工艺条件是拟薄水铝石添加量为10% , 硝酸添加量为5% , 田菁粉添加量为1% ．在此条件下制备的高温和低温成型催化剂均具有良好的稳定性, 这为耐硫甲烷化催化剂的工业放大研制提供了重要依据．
Abstract_English:The CeO₂-Al₂O₃ composite support and MoO₃/ZrO₂ catalyst were formed by extrusion method and the effect of forming process on the sulfur-resistant methanation performance of both high temperature catalyst and low temperature catalyst was studied. The effects of different additives on the forming process of Mo-based catalysts and sulfur-resistant methanation activity were investigated. The stability of the prepared catalyst was tested. The results showed that the optimum forming conditions of CeO₂-Al₂O₃ composite support were as follows: powder/water mass ratio of 0.45—0.55 with 10% pseudo-boehmite as a binder，10% nitric acid as a peptizer and 1% sesbania powder as a lubricant. The optimum forming conditions of MoO₃/ZrO₂ catalyst were: 10% pseudo-boehmite，5% nitric acid and 1% sesbania powder. The results indicated that both the high temperature catalyst and low temperature catalyst prepared under the optimum conditions were stable during the reaction process，which provides important basis for scale-up production of sulfur-resistant methanation catalyst for industrial application.
Keyword_Chinese:耐硫甲烷化; 铈铝复合载体; 钼基催化剂; 催化剂成型
Keywords_English:sulfur-resistant methanation; CeO₂-Al₂O₃ composite support; Mo-based catalyst; catalyst formation

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