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Effect of alkaline treatment on pore structure and acidity of HZSM-5 in the synthesis of ethyl mercaptan

Paper ID Volume ID Publish Year Pages File Format Full-Text
49463 46746 2015 5 PDF Available
Title
Effect of alkaline treatment on pore structure and acidity of HZSM-5 in the synthesis of ethyl mercaptan
Abstract

•Alkaline treatment leads to the development of considerable mesoporosity.•The selectivity for ethyl mercaptan is markedly improved upon alkaline treatment.•Catalyst lifetimes are prolonged upon alkaline treatment.•The mesopores facilitate mass transfer and change the distribution of acid sites.

A series of alkaline-treated HZSM-5 catalysts were prepared and applied to the synthesis of ethyl mercaptan. The physicochemical properties were characterized by a combination of ICP-OES, N2 adsorption, XRD, NH3-TPD, FT-IR spectra of pyridine and 2,4,6-trimethylpyridine.The obtained results demonstrated that alkaline treatment led to the development of considerable mesoporosity without significant destruction of the intrinsic zeolite properties. The mesopores facilitated mass transfer and changed the distribution of acid sites, thus markedly improving catalytic stability and the selectivity for ethyl mercaptan.

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Keywords
LJSQFQKUNVCTIA-UHFFFAOYSA-N; DNJIEGIFACGWOD-UHFFFAOYSA-N; RWSOTUBLDIXVET-UHFFFAOYSA-NHZSM-5; Alkaline treatment; Ethyl mercaptan; Mesoporosity
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Effect of alkaline treatment on pore structure and acidity of HZSM-5 in the synthesis of ethyl mercaptan
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 60, 5 February 2015, Pages 32–36
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
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Price after discount Only $4.95
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Full-text PDF Download
Online Support
Any Questions? feel free to contact us