摘要
以硝酸铜、硝酸锌、氯氧化锆为原料，碳酸钠为沉淀剂，通过共沉淀、洗涤、干燥和３００°Ｃ下焙烧制备了一系列含锆合成甲醇催化剂。活性测定结果表明：在２１０～２７０°Ｃ、４．０ＭＰａ下单组分ＣｕＯ、ＺｎＯ及双组分ＣｕＯ－ＺｒＯ２没有活性，双组分ＣｕＯ－ＺｎＯ具有一定活性，再添加ＺｒＯ２则能显著增加这种催化活性。红外光谱考察表明：ＣｕＯ、ＺｎＯ组分间具有较强的相互作用，添加锆组分能增强这种相互作用。分析认为，这种相互作用正是该种催化剂合成甲醇的活性来源。
s The catalysts for methanol synthesis were prepared by coprecipitation of Cu(NO 3) 2 ·3H 2O,Zn(NO 3) 2·6H 2O and ZrOCl 2·8H 2O with Na 2CO 3 in aqueous solution, followed by filteration, washing and calcination at 300 °C . Their activities were measured at 210￣270 °C 、4.0 MPa and 9400h -1 . Results show that the CuO、ZnO、ZrO 2 and CuO ZrO 2 individuals have no activity, however, CuO ZnO exhibits good activity and the addition of ZrO 2 remarkably improves the activity. There is a synergistic action between CuO and ZnO components, the addition of ZrO 2 strengthens the synergistic action. The remarkable activity of CuO ZnO ZrO 2 catalyst for methanol synthesis comes from this synergistic action.
出处
《化学世界》
CAS
CSCD
1999年第4期207-210,共4页
Chemical World
关键词
甲醇合成
催化剂
活性
铜
锌
铬
methanol synthesis catalyst activity IR
