Effect of support and acidity of catalyst on direct oxidation of ethylene to acetic acid
文献类型：期刊论文
| 作者 | Zhang, JL; Wang, XP; Cai, TX; Cheng, MJ; Bao, XH |
| 刊名 | chinese journal of catalysis
 |
| 出版日期 | 2002-05-01 |
| 卷号 | 23期号:3页码:203-206 |
| 关键词 | palladium acid silica activated carbon acid clay supported catalyst ethylene oxidation acetic acid |
| 英文摘要 | the direct oxidation of ethylene to acetic acid over pd-acid/support catalysts in a fixed-bed reactor was studied the results showed that when the phospho-tungstic acid ( h3pw12), phospho-molybdic acid (h3pmo12) i phosphoric acid, sulfuric acid, silicotungstic acid (h4siw12) or its soldium salts were supported on pd/sio2, the acid strength influences the catalytic activity strongly, and the catalyst with stronger acid strength has higher activity. the acidity of pd-h4siw12 catalysts supported respectively on sio2, activated carbon (ac), and acid clay (acy) was characterized by nh3-tpd and i-c3h7oh dehydration. the results showed that the supports affect the catalytic activity through influencing the acid strength. the more the strong acid sites on catalyst, the higher the catalytic activity. when the silica, ac or acy was used as support, the influence of pd dispersion determined by hydrogen adsorption on the catalytic activity can not be observed. therefore, it can be deduced that the decisive factor to the activity of catalysts is the acid strength but not the pet dispersion. |
| WOS标题词 | science & technology ; physical sciences ; technology |
| 类目[WOS] | chemistry, applied ; chemistry, physical ; engineering, chemical |
| 研究领域[WOS] | chemistry ; engineering |
| 关键词[WOS] | heteropoly |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000176236500004 |
| 公开日期 | 2015-11-10 |
| 源URL | [http://159.226.238.44/handle/321008/139045]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.Dalian Univ Technol, State Key Lab Fine Chem, Dalian 116012, Liaoning, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Liaoning, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, JL,Wang, XP,Cai, TX,et al. Effect of support and acidity of catalyst on direct oxidation of ethylene to acetic acid[J]. chinese journal of catalysis,2002,23(3):203-206. |
| APA | Zhang, JL,Wang, XP,Cai, TX,Cheng, MJ,&Bao, XH.(2002).Effect of support and acidity of catalyst on direct oxidation of ethylene to acetic acid.chinese journal of catalysis,23(3),203-206. |
| MLA | Zhang, JL,et al."Effect of support and acidity of catalyst on direct oxidation of ethylene to acetic acid".chinese journal of catalysis 23.3(2002):203-206. |
入库方式： OAI收割
来源：大连化学物理研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。