沉淀法CuCr催化剂/CH_3ONa体系的浆态相低温甲醇合成性能  

COMPARISON OF PERFORMANCE OF CuCr/CH_3ONa CATALYTIC SYSTEMS USED FOR LOW TEMPERATURE METHANOL SYNTHESIS IN SLURRY PHASE

作　　者：赵玉龙[1] 白亮[1] 胡蕴青[1] 苏晓丽[1] 

机构地区：[1]中国科学院山西煤炭化学研究所,山西太原030001

出　　处：《燃料化学学报》2001年第4期360-362,共3页Journal of Fuel Chemistry and Technology

摘　　要：以Cu(NO3) 2 、CrO3和浓氨水为原料 ,采用并流滴加共沉淀法制备的 ,CuCr氧化物催化剂与工业甲醇钠溶液组成的催化体系的低温甲醇合成反应性能较好。催化剂制备方法的重复性良好 ,平均误差在± 3 %以内。催化剂的空时收率平均误差在± 5 %内。对使用络合溶液法和共沉淀法制备的CuCr催化剂 (包括两种商品催化剂G 89和N2 0 3SD)与工业甲醇钠溶液组成的四种催化体系 ,采用气相连续流动、液相间歇的方法 ,在 1L浆态搅拌釜中评价了它们的反应性能。与其它三种催化体系比较 ,本文开发的CuCr CH3ONa催化体系 ,运转 4 8h后的空时收率最高( 0 60 9g(gcat) - 1 ·h- 1 )。A new catalyst CuCr oxide was prepared by c o-precipitation with Cu(NO 3) 2, CrO 3 and aqueous ammonia as raw materials, which shoed good catalytic performance in the methanol synthesis at low tempera ture when used together with the industrial CH 3ONa solution. The catalytic te sts were carried out in 1-liter autoclave under a continuous flow of gas and ba tch flow of liquid. The specific yield with the CuCr/CH 3ONa system reached 0 .609?g/gcat·h, which were much higher than other catalyst systems such as com mercial catalysts G-89 and N203SD.

关 键 词：CuCr/CH3ONa催化体系 甲醇 沉淀法 催化剂 催化性能 低温合成 浆态反应器 

分 类 号：O643.36[理学—物理化学] O623.411[理学—化学]