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Deactivation and regeneration of the supported bimetallic Pd-Pb catalyst in direct oxidative esterification of methacrolein with methanol
Diao, Yanyan1; Yang, Pu1; Yan, Ruiyi1; Jiang, Li1,2; Wang, Lei1; Zhang, Heng1,3; Li, Chunshan1; Li, Zengxi2; Zhang, Suojiang1
2013-10-01
Source PublicationAPPLIED CATALYSIS B-ENVIRONMENTAL
Volume142Issue:0Pages:329-336
AbstractThe deactivation of the supported bimetallic Pd-Pb catalyst in the repeated runs of direct oxidative esterification of methacrolein with methanol in the atmosphere was investigated. The catalysts before and after stability tests were characterized by X-ray diffraction, transmission electron microscopy, X-ray photo-electron spectroscopy, inductively coupled plasma mass spectrometry, Brunauer-Emmett-Teller method and thermogravimetric analysis. The results indicated that the major factor affecting the deactivation of the catalyst was the deposition of organic substances on the surface active sites of the catalyst during batch reaction. Washing the deactivated catalyst with either MeOH or an aqueous hydrazine solution at 80 degrees C could completely recover the initial activity of the catalyst, and calcining the deactivated catalyst in air at 500 degrees C and then reducing in an aqueous hydrazine solution could partly recover its activity. The deactivation and regeneration of the catalyst in the direct oxidative esterification at gas-liquid-solid phase are important and meaningful. (c) 2013 Elsevier B.V. All rights reserved.
KeywordOxidative Esterification Pd Catalyst Deactivation Regeneration
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
Indexed BySCI
Language英语
WOS KeywordLIQUID-PHASE HYDRODECHLORINATION ; METHYL-METHACRYLATE ; PALLADIUM CATALYST ; CO OXIDATION ; COMBUSTION ; CHLOROBENZENE ; REACTIVATION ; VAPOR ; FILMS ; SCR
WOS Research AreaChemistry ; Engineering
WOS SubjectChemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
WOS IDWOS:000324077600037
Citation statistics
Cited Times:14[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/13658
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Beijing Key Lab Ion Liquids Clean Proc, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
3.Qufu Normal Univ, Sch Chem & Chem Engn, Qufu 273165, Peoples R China
Recommended Citation
GB/T 7714
Diao, Yanyan,Yang, Pu,Yan, Ruiyi,et al. Deactivation and regeneration of the supported bimetallic Pd-Pb catalyst in direct oxidative esterification of methacrolein with methanol[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2013,142(0):329-336.
APA Diao, Yanyan.,Yang, Pu.,Yan, Ruiyi.,Jiang, Li.,Wang, Lei.,...&Zhang, Suojiang.(2013).Deactivation and regeneration of the supported bimetallic Pd-Pb catalyst in direct oxidative esterification of methacrolein with methanol.APPLIED CATALYSIS B-ENVIRONMENTAL,142(0),329-336.
MLA Diao, Yanyan,et al."Deactivation and regeneration of the supported bimetallic Pd-Pb catalyst in direct oxidative esterification of methacrolein with methanol".APPLIED CATALYSIS B-ENVIRONMENTAL 142.0(2013):329-336.
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