DICP OpenIR
Effect of support and acidity of catalyst on direct oxidation of ethylene to acetic acid
Zhang, JL; Wang, XP; Cai, TX; Cheng, MJ; Bao, XH
KeywordPalladium Acid Silica Activated Carbon Acid Clay Supported Catalyst Ethylene Oxidation Acetic Acid
Source PublicationCHINESE JOURNAL OF CATALYSIS
2002-05-01
Volume23Issue:3Pages:203-206
Indexed BySCI
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectChemistry, Applied ; Chemistry, Physical ; Engineering, Chemical
WOS Research AreaChemistry ; Engineering
WOS KeywordHETEROPOLY
AbstractThe 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.
Language英语
WOS IDWOS:000176236500004
Citation statistics
Cited Times:6[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/139045
Collection中国科学院大连化学物理研究所
Affiliation1.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
Recommended Citation
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.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Zhang, JL]'s Articles
[Wang, XP]'s Articles
[Cai, TX]'s Articles
Baidu academic
Similar articles in Baidu academic
[Zhang, JL]'s Articles
[Wang, XP]'s Articles
[Cai, TX]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Zhang, JL]'s Articles
[Wang, XP]'s Articles
[Cai, TX]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.