摘要
合成Ｃ_２含氧化物的Ｒｈ－Ｍｎ－Ｌｉ／ＳｉＯ_２催化剂的优化研究罗洪原，谢水波，林励吾，梁东白（中国科学院大连化学物理研究所，大连１１６０２３）关键词合成气，Ｃ_２含氧化物，铑催化剂，锰，锂ＣＯ加氢合成Ｃ_２含氧化合物由于具有较高的收率、较好的产品价格及...
h--Mn--Li/SiO2 catalysts for the synthesis of C, oxygenates from syngas were studied and it was found that the composition and pretreatment conditions of the catalysts exerted significant influence on their activity and selectivity. The addition of manganese and lithium to the catalysts not only improved the selectivity for C2 oxygenates, but also increased the activity of the catalysts obviously. The catalysts with lower rhodium loading of 1 % and optimum composition after pre-treatment in proper conditions of calcination and reduction exhibited a goodcatalytic properties for the formation of C,+ oxygenates. A yield of morethan 200 g/(kg cat ·h) of C2+ oxygenates could be obtained on the catalysts in reaction conditions of 593 K, 3. 0 MPa, 10000 h-1 and H2/CO(vol ratio ) = 2.
关键词
催化剂
锰
锂
铑
一氧化碳
加氢反应
syngas,C_2 oxygenates, rhodium catalyst, manganese,lithium
