| 气相法合成碳酸二甲酯Pd-Cu/C催化剂失活及再生研究 |
| |
| 引用本文： | 李朝恒,王秀珍,吴之仁,孟凡东,王绍领.气相法合成碳酸二甲酯Pd-Cu/C催化剂失活及再生研究[J].天然气化工,2004,29(6):24-27. |
| |
| 作者姓名： | 李朝恒 王秀珍 吴之仁 孟凡东 王绍领 |
| |
| 作者单位： | 1. 中国石化集团洛阳石化工程公司工程研究院,洛阳,471003
2. 河南师范大学化学与环境科学学院,新乡,453002 |
| |
| 基金项目： | 中国石化集团公司科技开发项目(103110) |
| |
| 摘 要： | 对气相羰化法合成碳酸二甲酯反应过程中失活前后催化剂性质进行了对比分析,得出Pd Cu/C双金属催化剂失活的原因是:Pd的迁移,氯离子的流失和催化剂表面吸附大分子物质。研究了反应过程中催化剂上氯离子的变化规律,探讨了反应过程中催化作用机理。
|
| 关 键 词： | 碳酸二甲酯 DMC 甲醇 羰基化 PdCu/C催化剂 失活 再生 |
| 文章编号： | 1001-9219(2004)06-24-04 |
| 修稿时间： | 2004年6月20日 |
Study on Deactivation and Regeneration of Pd-Cu/C Catalyst in the Synthesis of Dimethyl Carbonate by Gas-Phase Reaction |
| |
| LI Chao-heng,WANG Xiu-zhen,WU Zhi-ren,MENG Fan-dong.Study on Deactivation and Regeneration of Pd-Cu/C Catalyst in the Synthesis of Dimethyl Carbonate by Gas-Phase Reaction[J].Natural Gas Chemical Industry,2004,29(6):24-27. |
| |
| Authors: | LI Chao-heng WANG Xiu-zhen WU Zhi-ren MENG Fan-dong |
| |
| Affiliation: | LI Chao-heng~1,WANG Xiu-zhen~1,WU Zhi-ren~1,MENG Fan-dong~ |
| |
| Abstract: | The characteristics of fresh and deactivated catalyst used in the synthesis of dimethyl carbonate were analyzed. It is revealed that the reasons for the deactivation of Pd-Cu/C catalyst were the inner migration of Pd, the loss of chlorine and the adsorption of large molecules. The changing of chloride anion concentration on catalyst was investigated. The catalysis mechanism was tentatively put forward. |
| |
| Keywords: | dimethyl carbonate DMC methanol carbonylation Pd-Cu/C catalyst deactivation regeneration |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
