CuO/ZnO/Al_2O_3应用于合成气催化合成甲醇  

Catalytic Synthesis of Raw Material Gases to Methanol over CuO/Zn O/Al_2O_3 Catalysts

作　　者：宋志强[1,2] 秦金良 李红良 李延升 贾太轩[2] 

机构地区：[1]鹤壁联昊化工股份有限公司,河南鹤壁458000 [2]安阳工学院化学与环境工程学院,河南安阳455000

出　　处：《广东化工》2015年第16期90-91,42,共3页Guangdong Chemical Industry

基　　金：国家自然科学基金资助课题(20776031)

摘　　要：本研究采用溶胶-凝胶法制备了CuO/Zn O/Al2O3,以合成气合成甲醇为探针反应,评价其催化活性。在一定实验条件下,CuO/Zn O/Al2O3与丹麦托普索MK-121型催化剂对比实验,结果表明:CuO/Zn O/Al2O3平均甲醇质量收率为3.453g/(g·cat·h),稍微大于MK-121的3.379g/(g·cat·h),已接近或达到国外进口催化剂的性能。通过XRD、DSC等检测手段,分别检测了MK-121、CuO/Zn O/Al2O3和长周期反应后的CuO/Zn O/Al2O3,发现CuO/Zn O/Al2O3、MK-121的微观结构很相似,金属离子之间存在协同效应。催化剂失活后,晶体粒径明显增大,出现了Zn O的特征衍射峰,是催化剂飞温造成的,为合成甲醇催化剂国产化提供了基础数据和实验依据。In the study, Cu O/Zn O/Al2O3 was prepared by sol-gel method. Its catalytic activity was evaluated by synthesis gases to methanol as a probe reaction. Under certain experimental conditions, evaluation results show that the average methanol quality yield is 3.453 g/（g·cat·h）, slightly larger than 3.379 g/（g·cat·h） as MK-121 imported from Denmark Topsoe. The performance was closed to or reached imported catalyst. MK-121, new Cu O/Zn O/Al2O3 and long period reactive Cu O/Zn O/Al2O3 was detected by XRD and DSC. Metal ions had a cooperative effect during the catalytic synthesis methanol. Cu O/Zn O/Al2O3 possessed a very similar microstructure with MK-121. After Cu O/Zn O/Al2O3 deactivation, crystal particle size was clearly increased. Characteristic diffraction peaks of Zn O were found causing by the catalyst temperature rising in catalytic synthesis methanol. It could provide basic data and experimental basis for methanol catalyst localization.

关 键 词：CuO/Zn O/Al2O3 甲醇 催化合成 MK-121 合成气 

分 类 号：TQ314.255[化学工程—高聚物工业]