Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation

The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving...

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Main Authors:	Ho, Kah Sing, Chye, Joanna Jo Ean, Chin, S. Y., Cheng, C. K.
Format:	Article
Language:	English
Published:	Department of Chemical Engineering, Diponegoro University 2013
Subjects:	TP Chemical technology
Online Access:	http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf

id	ump-25358
recordtype	eprints
spelling	ump-253582019-12-10T01:19:53Z http://umpir.ump.edu.my/id/eprint/25358/ Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. TP Chemical technology The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving bed reactor) and coke formation at different temperatures of reaction were discussed. The physicochemical characterization of re-generated catalyst gave a BET surface area of 104.0 m2/g with graphitic carbon content of 8.0% indicative of incomplete carbon gasification during the industrial propylene production. Effect of temperatures on coke formation was identified by studying the product yield via temperature-programmed reaction carried out at 500 oC, 600 oC and 700 oC. It was found that ethylene was precursor to carbon laydown while propylene tends to crack into methane. Post reaction, the spent catalyst possessed relatively lower surface area and pore radius whilst exhibited higher carbon content (31.80% at 700 oC) compared to the regenerated cata-lyst. Significantly, current studies also found that higher reaction temperatures favoured the coke for-mation. Consequently, the propylene yield has decreased with reaction temperature. Department of Chemical Engineering, Diponegoro University 2013 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf Ho, Kah Sing and Chye, Joanna Jo Ean and Chin, S. Y. and Cheng, C. K. (2013) Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation. Bulletin of Chemical Reaction Engineering & Catalysis, 8 (1). pp. 77-82. ISSN 1978-2993 https://doi.org/10.9767/bcrec.8.1.4569.77-82 https://doi.org/10.9767/bcrec.8.1.4569.77-82
repository_type	Digital Repository
institution_category	Local University
institution	Universiti Malaysia Pahang
building	UMP Institutional Repository
collection	Online Access
language	English
topic	TP Chemical technology
spellingShingle	TP Chemical technology Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K. Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
description	The major problem plaguing propane dehydrogenation process is the coke formation on the Pt-Sn/Al2O3cat-alyst which leads to catalyst deactivation. Due to information paucity, the physicochemical characteristics of the commercially obtained regenerated Pt-Sn/Al2O3catalyst (operated in moving bed reactor) and coke formation at different temperatures of reaction were discussed. The physicochemical characterization of re-generated catalyst gave a BET surface area of 104.0 m2/g with graphitic carbon content of 8.0% indicative of incomplete carbon gasification during the industrial propylene production. Effect of temperatures on coke formation was identified by studying the product yield via temperature-programmed reaction carried out at 500 oC, 600 oC and 700 oC. It was found that ethylene was precursor to carbon laydown while propylene tends to crack into methane. Post reaction, the spent catalyst possessed relatively lower surface area and pore radius whilst exhibited higher carbon content (31.80% at 700 oC) compared to the regenerated cata-lyst. Significantly, current studies also found that higher reaction temperatures favoured the coke for-mation. Consequently, the propylene yield has decreased with reaction temperature.
format	Article
author	Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K.
author_facet	Ho, Kah Sing Chye, Joanna Jo Ean Chin, S. Y. Cheng, C. K.
author_sort	Ho, Kah Sing
title	Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
title_short	Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
title_full	Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
title_fullStr	Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
title_full_unstemmed	Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation
title_sort	characterization of industrial pt-sn/al2 o3 catalyst and transient product formations during propane dehydrogenation
publisher	Department of Chemical Engineering, Diponegoro University
publishDate	2013
url	http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/ http://umpir.ump.edu.my/id/eprint/25358/1/Characterization%20of%20industrial%20Pt-Sn-Al2%20O3%20catalyst%20and%20transient%20product%20formations.pdf
first_indexed	2023-09-18T22:38:53Z
last_indexed	2023-09-18T22:38:53Z
_version_	1777416780979896320

Characterization of industrial Pt-Sn/Al2 O3 catalyst and transient product formations during propane dehydrogenation

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