Stability Enhancement of H-Mordenite in Dimethyl Ether Carbonylation to Methyl Acetate by Pre-adsorption of Pyridine

	Stability Enhancement of H-Mordenite in Dimethyl Ether Carbonylation to Methyl Acetate by Pre-adsorption of Pyridine
	Liu Junlong 2; Xue Huifu 2; Huang Xiumin 2; Wu Pei-Hao 1; Huang Shing-Jong 3; Liu Shang-Bin 1; Shen Wenjie 2
刊名	chinese journal of catalysis
	2010-07-01
卷号	31 期号:7 页码:729-738
关键词	dimethyl ether carbonylation methyl acetate H-mordenite pyridine stability
英文摘要	the carbonylation of dimethyl ether to methyl acetate over h-mordenite (hmor) and pyridine-modified hmor was compared. the catalytic stability of hmor was improved significantly by pyridine pre-adsorption, and a yield of methyl acetate similar to 30% was still obtained after 48 h on stream at 473 k. in situ infrared spectroscopy and ammonia temperature-programmed desorption revealed that pyridine preferentially occupied the acidic sites in 12-membered ring pores but not the acidic sites in 8-membered ring pores. (129)xe nmr studies suggested that the channels of hmor were blocked by coke in the reaction but those in the pyridine-modified hmor were not. the acidic sites in the 12-membered ring pores were responsible for the deactivation of hmor, and the reaction can be directed to occur mainly on the acidic sties in the 8-membered ring pores by the selective adsorption of pyridine in the 12-membered ring pores.
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
关键词[WOS]	halide-free carbonylation ; vapor-phase carbonylation ; acidic zeolites ; selective carbonylation ; heterogeneous catalysts ; epoxidation catalysts ; bronsted acidity ; xe-129 nmr ; methanol ; h-zsm-5
收录类别	SCI
语种	英语
WOS记录号	WOS:000280868900003
公开日期	2015-11-17
内容类型	期刊论文
源URL	[http://159.226.238.44/handle/321008/141866]
专题	大连化学物理研究所_中国科学院大连化学物理研究所
作者单位	1.Acad Sinica, Inst Atom & Mol Sci, Taipei 10617, Taiwan 2.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China 3.Taiwan Natl Univ, Dept Chem, Taipei 10617, Taiwan
推荐引用方式 GB/T 7714	Liu Junlong,Xue Huifu,Huang Xiumin,et al. Stability Enhancement of H-Mordenite in Dimethyl Ether Carbonylation to Methyl Acetate by Pre-adsorption of Pyridine[J]. chinese journal of catalysis,2010,31(7):729-738.
APA	Liu Junlong.,Xue Huifu.,Huang Xiumin.,Wu Pei-Hao.,Huang Shing-Jong.,...&Shen Wenjie.(2010).Stability Enhancement of H-Mordenite in Dimethyl Ether Carbonylation to Methyl Acetate by Pre-adsorption of Pyridine.chinese journal of catalysis,31(7),729-738.
MLA	Liu Junlong,et al."Stability Enhancement of H-Mordenite in Dimethyl Ether Carbonylation to Methyl Acetate by Pre-adsorption of Pyridine".chinese journal of catalysis 31.7(2010):729-738.