热分解法Cu基甲醇合成催化剂反应性能的研究  

Synthesis of Methanol from Syngas over Copper-Based Catalysts Prepared by Thermal Decomposition Method

作　　者：吴茨萍[1] 刘姝[1] 穆文俊[1] 王志娟[1] 吴亚勤 贺立敏[2] 

机构地区：[1]抚顺石油学院石油化工系,辽宁抚顺113001 [2]大连铁道学院应用化学系,辽宁大连116028

出　　处：《抚顺石油学院学报》2000年第1期7-9,共3页Journal of Fushun Petroleum Institute

摘　　要：为了改进Cu基甲醇催化剂的反应性能,消除沉淀剂Na2CO3中Na+的不利影响,采用热分解法制备了Cu基甲醇催化剂,用于CO加氢合成甲醇反应。实验中对比了用该方法制备的催化剂与传统的共沉淀法制备的工业用甲醇催化剂以及工业甲醇浸钒催化剂的反应性能,考察了温度、压力、空速等工艺条件对新方法制备的催化剂反应性能的影响。结果表明,其活性、选择性均优于传统的工业用甲醇催化剂。反应在低温、高压、适宜空速的条件下进行有利,用热分解法制备的Cu基甲醇催化剂可高活性、高选择性地催化CO加氢生成甲醇,具有很好的催化性能。并且其制备工艺简单,制备条件较好控制,有望代替工业上传统的共沉淀法制备工艺,用于甲醇催化剂的制备。In order to improve the reaction performance of Cu-based catalyst for production of methanol, eliminate disadvantageous influence of Na + in Na 2CO 3, which is used for precipitant. A Cu-based catalyst for production of methanol from synthesis gas (CO+H 2) was prepared by thermal decomposition method.The reaction performance of methanol catalysts which are synthesized by thermal decomposition method, by coprecipitation method, and industrial catalyst impregnated by vanadium was estimated and compared each other.Effect of reaction conditions on synthesis of methanol such as temperature, pressure and space velocity were also investigated.The results of experiment show that the catalyst used is better than the traditional catalysts on reaction activity and selectivity.Low temperature, high pressure and proper space velocity are favourable to reaction. The new catalyst has high activity and selectivity to methanol from CO+H 2.Moreover,preparation method of the catalyst is simple and preparation condition is easily controlled.It is expected that the new method can replace coprecipitation on the catalysts preparation .

关 键 词：合成气 热分解法 铜基 催化剂 甲醇 合成 

分 类 号：TQ223.121[化学工程—有机化工] TQ426.94