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题名: The application of Zr incorporated Zn-Al dehydrated hydrotalcites as solid base in transesterification
作者: Liu, Qianhe1, 2;  Wang, Congxin1;  Qu, Wei1;  Wang, Bingchun1;  Tian, Zhijian1, 3;  Ma, Huaijun1;  Xu, Renshun1
关键词: FAME ;  Transesterification ;  Zn-Al dehydrated hydrotalcites
刊名: CATALYSIS TODAY
发表日期: 2014-10-01
DOI: 10.1016/j.cattod.2014.02.026
卷: 234, 页:161-166
收录类别: SCI
文章类型: Article
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
英文摘要: Zr incorporated Zn-Al dehydrated hydrotalcites solid bases were obtained by calcining Zr-Zn-Al hydrotalcites at 140 degrees C and 200 degrees C. These solid bases were characterized by X-ray diffraction, N-2 adsorption/desorption, UV-vis diffuse reflectance spectra, temperature programmed desorption of CO2 and infrared spectroscopy of CO2 adsorption. The results show that the Zr incorporated Zn-Al dehydrated hydrotalcites have larger pore diameter and stronger base-strength than the un-incorporated one. The sample with the Zr/Zn/Al ratio of 0.25/2.56/1 has the largest pore diameter, which is 10.6 nm. The basic sites of these solid bases are OH groups and the sample treated at 200 degrees C has more basic sites than which treated at 140 degrees C. These solid bases were evaluated as catalysts in the transesterification reaction for the biodiesel (FAME) production. The sample (with Zr/Zn/Al of 0.25/2.56/1) treated at 200 degrees C gives the FAME yield of 91.71% at 140 degrees C, 1.7 MPa and 1.0 h(-1). It shows no deactivation in the reaction of about 300 h. (C) 2014 Elsevier B.V. All rights reserved.
关键词[WOS]: LAYERED DOUBLE HYDROXIDE ;  ANIONIC CLAYS ;  BIODIESEL PRODUCTION ;  MGAL HYDROTALCITE ;  MIXED OXIDES ;  CATALYSTS ;  ACID ;  OIL
语种: 英语
WOS记录号: WOS:000339132900021
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/143210
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Chinese Acad Sci, Dalian Inst Chem Phys, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China

Recommended Citation:
Liu, Qianhe,Wang, Congxin,Qu, Wei,et al. The application of Zr incorporated Zn-Al dehydrated hydrotalcites as solid base in transesterification[J]. CATALYSIS TODAY,2014,234:161-166.
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