摘要
经热力学分析得出：当压力在３．０～４．０ＭＰａ，温度在１８０～３００°Ｃ的范围内，ＣＯ２加氢生成乙醛在热力学上是可能的。实验表明，在Ｒｈ－Ａｇ／ＳｉＯ２、Ｒｈ－Ａｇ－ＬｉＣｌ／ＳｉＯ２催化剂上有乙醛生成，乙醛的选择性最高可达４５．８９％。
The thermodynamical possibility of the CO 2 hydrogenation to acetaldehyde was analyzed and the result showed that CO 2 hydrogenation to acetaldehyde under pressure of 3.0 ￣4.0MPa and at tempreture of 180￣300°C is possible. The experiments of CO 2 hydrogenation were carried out on the catalysts of Rh Ag/SiO 2 and Rh Ag LiCl/SiO 2 in a microreactor to study the activity and selectivity of acetaldehyde. The products were analyzed on line by flame ionization(FID). On Rh Ag LiCl/SiO 2 catalysts, the selectivity of acetaldehyde was 45.89% in the conditions of 250°C, 3.3MPa, 100mL/min, CO 2/H 2 0.4(mol ratio).
出处
《华东理工大学学报（自然科学版）》
CAS
CSCD
北大核心
1997年第5期521-525,共5页
Journal of East China University of Science and Technology
关键词
二氧化碳
催化加氢
乙醛
热力学
铑
CO 2
catalytic hydrogenation
acetaldehyde
thermodynamics
rhodium
