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Upgrading of palmitic acid to diesel-like fuels over Ni@HZSM-5 bi-functional catalysts through the in situ encapsulation method
Gao, Chen1,2; Zhang, Jimei1,2; Xing, Enhui3; Xie, Yongbing1; Zhao, He1; Ning, Pengge1; Shi, Yanchun1
2021-07-01
Source PublicationMOLECULAR CATALYSIS
ISSN2468-8231
Volume511Pages:12
AbstractNi@HZSM-5 bi-functional catalysts were successfully synthesized through the in situ encapsulation method to form 2-5 nm Ni nanoparticles within HZSM-5 crystals, which was applied in evaluating the hydrodeoxygenation performance of palmitic acid to diesel-like range fuels. As for Ni@HZSM-5, there was the certain interaction between Ni and Al, which further influenced the hydrogenation activity and acidity of catalysts. Complete deoxygenation of palmitic acid and 100% selectivity of alkanes were achieved over Ni@HZSM-5 bi-functional catalysts, and the corresponding main products were C15 and C16 alkanes. Importantly, Ni@HZSM-5 (2.4 wt% Ni) exhibited the high conversion activity of 16.4 mol((palmitic acid)) .mol((Ni))(-1) .h(-1), which were attributed to 2-5 nm Ni nanoparticles uniformly dispersed within HZSM-5 crystals. Ni@HZSM-5 further exhibited the well catalytic stability during the process of regeneration and recycle runs without obvious change of Ni sizes and dispersion, which was totally different from impregnated Ni/HZSM-5 catalysts with the aggregation of Ni particles. The favorable performance of Ni@HZSM-5 was ascribed to small Ni nanoparticles within HZSM-5 crystals without any obvious aggregation, which would offer a novel strategy for synthesizing low metal@zeolite bi-functional catalysts with high activity and stability in upgrading of bio-mass oils.
KeywordPalmitic acid Ni@HZSM-5 Diesel-like fuels Encapsulation Low Ni content
DOI10.1016/j.mcat.2021.111715
Language英语
WOS KeywordSPINEL-TYPE CATALYSTS ; SELECTIVE HYDROGENATION ; FATTY-ACIDS ; PHASE HYDRODEOXYGENATION ; RENEWABLE DIESEL ; RAPESEED OIL ; ISO-ALKANES ; OLEIC-ACID ; ZEOLITE ; NANOPARTICLES
Funding ProjectNational Natural Science Foundation of China[21908225] ; Science and Technology Service Network Initiative[KFJ-STS-QYZD-081]
WOS Research AreaChemistry
WOS SubjectChemistry, Physical
Funding OrganizationNational Natural Science Foundation of China ; Science and Technology Service Network Initiative
WOS IDWOS:000681472000006
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/49600
Collection中国科学院过程工程研究所
Corresponding AuthorShi, Yanchun
Affiliation1.Chinese Acad Sci, Beijing Engn Res Ctr Proc Pollut Control, Inst Proc Engn, Div Environm Engn & Technol, Beijing 100190, Peoples R China
2.Univ Chinese Acad Sci, Beijing, Peoples R China
3.Sinopec, State Key Lab Catalyt Mat & React Engn, Res Inst Petr Proc, Beijing 100083, Peoples R China
Recommended Citation
GB/T 7714
Gao, Chen,Zhang, Jimei,Xing, Enhui,et al. Upgrading of palmitic acid to diesel-like fuels over Ni@HZSM-5 bi-functional catalysts through the in situ encapsulation method[J]. MOLECULAR CATALYSIS,2021,511:12.
APA Gao, Chen.,Zhang, Jimei.,Xing, Enhui.,Xie, Yongbing.,Zhao, He.,...&Shi, Yanchun.(2021).Upgrading of palmitic acid to diesel-like fuels over Ni@HZSM-5 bi-functional catalysts through the in situ encapsulation method.MOLECULAR CATALYSIS,511,12.
MLA Gao, Chen,et al."Upgrading of palmitic acid to diesel-like fuels over Ni@HZSM-5 bi-functional catalysts through the in situ encapsulation method".MOLECULAR CATALYSIS 511(2021):12.
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