Hydrogenolysis of glycerol over supported bimetallic Ni/Cu catalysts with and without external hydrogen addition in a fixed-bed flow reactor

doi:10.1016/j.apcata.2018.07.029

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	Hydrogenolysis of glycerol over supported bimetallic Ni/Cu catalysts with and without external hydrogen addition in a fixed-bed flow reactor
	Cai, Fufeng 1,2; Pan, Donghui 2; Ibrahim, Jessica Juweriah 3; Zhang, Jun 1; Xiao, Guomin 2
	2018-08-25
发表期刊	APPLIED CATALYSIS A-GENERAL
ISSN	0926-860X
卷号	564 页码:172-182
摘要	The role of high hydrogen pressure in the hydrogenolysis of glycerol to 1,2-propanediol has been studied extensively. Given the peculiar properties of hydrogen such as its inflammability and explosibility, the hydrogenolysis of glycerol without external hydrogen addition seems a more advantageous option. This study focuses on the conversion of glycerol to 1,2-propanediol over different supported bimetallic Ni/Cu catalysts in a fixed bed flow reactor, using in situ hydrogen production and external hydrogen. Among the catalysts prepared, Ni/Cu/TiO2 catalyst was observed to efficiently catalyze the hydrogenolysis of glycerol to 1,2-propanediol under N-2 pressure using 2-propanol as hydrogen source. This was due to the high Cu dispersion and Ni/Cu atomic ratio on the catalyst surface. However, the experimental results indicated that the effect of catalyst acid sites on glycerol hydrogenolysis was more noticeable when the reaction was performed under H-2 pressure. The metal active sites of the catalyst played a significant role in the hydrogen production and also affected the glycerol hydrogenolysis with hydrogen produced from 2-propanol catalytic transfer hydrogenation (CTH) and glycerol aqueous phase reforming (APR). The stability study revealed that the Ni/Cu/TiO2 catalyst underwent serious deactivation during the hydrogenolysis of glycerol. The characterization results showed that the metal leaching and metal particles sintering were responsible for the catalyst deactivation when the glycerol hydrogenolysis was conducted using water as a solvent. However, the activity loss for reactions performed using 2-propanol as a solvent was mainly related to the metal particles sintering and the presence of adsorbed species on the catalyst surface.
关键词	Glycerol Hydrogenolysis 1,2-Propanediol 2-Propanol Ni/Cu/TiO2 catalyst
DOI	10.1016/j.apcata.2018.07.029
关键词[WOS]	PROPYLENE-GLYCOL ; REACTION-MECHANISM ; 1,2-PROPANEDIOL ; CONVERSION ; PERFORMANCE ; SELECTIVITY ; ACID ; DEACTIVATION ; CHEMICALS ; ABSENCE
语种	英语
资助项目	National Natural Science Foundation of China[21406034] ; National Natural Science Foundation of China[21676054] ; Shanghai Sailing Program[18YF1425800]
WOS研究方向	Chemistry ; Environmental Sciences & Ecology
项目资助者	National Natural Science Foundation of China ; Shanghai Sailing Program
WOS类目	Chemistry, Physical ; Environmental Sciences
WOS记录号	WOS:000443669800018
出版者	ELSEVIER SCIENCE BV
引用统计
文献类型	期刊论文
条目标识符	http://ir.qibebt.ac.cn/handle/337004/11903
专题	中国科学院青岛生物能源与过程研究所
通讯作者	Cai, Fufeng; Zhang, Jun
作者单位	1.Chinese Acad Sci, Shanghai Adv Res Inst, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 2.Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China 3.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, Qingdao 266101, Peoples R China
推荐引用方式 GB/T 7714	Cai, Fufeng,Pan, Donghui,Ibrahim, Jessica Juweriah,et al. Hydrogenolysis of glycerol over supported bimetallic Ni/Cu catalysts with and without external hydrogen addition in a fixed-bed flow reactor[J]. APPLIED CATALYSIS A-GENERAL,2018,564:172-182.
APA	Cai, Fufeng,Pan, Donghui,Ibrahim, Jessica Juweriah,Zhang, Jun,&Xiao, Guomin.(2018).Hydrogenolysis of glycerol over supported bimetallic Ni/Cu catalysts with and without external hydrogen addition in a fixed-bed flow reactor.APPLIED CATALYSIS A-GENERAL,564,172-182.
MLA	Cai, Fufeng,et al."Hydrogenolysis of glycerol over supported bimetallic Ni/Cu catalysts with and without external hydrogen addition in a fixed-bed flow reactor".APPLIED CATALYSIS A-GENERAL 564(2018):172-182.