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Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst

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Main Authors: Sugeng, Triwahyono, Aishah, Abdul Jalil, Halimaton, Hamdan
Other Authors: sugeng@ibnusina.utm.my
Format: Article
Language:English
Published: The Institution of Engineers, Malaysia 2011
Subjects:
Hydrogen treatment
Isomerisation
Oxygen treatment
PSZ catalyst
Online Access:http://dspace.unimap.edu.my/xmlui/handle/123456789/13575
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spelling my.unimap-135752011-08-20T15:22:08Z Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst Sugeng, Triwahyono Aishah, Abdul Jalil Halimaton, Hamdan sugeng@ibnusina.utm.my Hydrogen treatment Isomerisation Oxygen treatment PSZ catalyst Link to publisher's homepage at http://www.myiem.org.my/ Skeletal isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 (PSZ) catalyst was studied in a closed recirculation reactor in the temperature range 413-503 K. In the presence of Pt and hydrogen, the stability and activity of catalyst were enhanced markedly due to generation of protonic acid sites acting as a catalytic site for acid-catalysed reaction and suppression effect in the formation of polymeric material on the surface of catalyst. FTIR study of pyridine adsorbed on PSZ catalyst have been used to monitor the generation of active sites for isomerisation of cyclohexane. The results revealed that the active sites for acid-catalysed reaction were generated from molecular hydrogen molecules on the surface of catalyst. A high stability and steady state activity of PSZ catalyst for cyclohexane isomerisation in the presence of hydrogen were observed for at least 1 h with the estimated apparent activation energy of 20.2 kJ/mol. The activity of catalyst declined continuously due to the formation of polymeric materials and reached to zero level within 2 h. However, the treating used-catalyst in a circulating oxygen at 573 K followed by outgassing at 573 K restored about 80 % of the catalytic activity. 2011-08-20T15:22:07Z 2011-08-20T15:22:07Z 2006-03 Article The Journal of the Institution of Engineers, Malaysia, vol. 67(1), 2006, pages 30-35 0126-513X http://myiem.org.my/content/iem_journal_2006-177.aspx http://hdl.handle.net/123456789/13575 en The Institution of Engineers, Malaysia
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Hydrogen treatment
Isomerisation
Oxygen treatment
PSZ catalyst
spellingShingle Hydrogen treatment
Isomerisation
Oxygen treatment
PSZ catalyst
Sugeng, Triwahyono
Aishah, Abdul Jalil
Halimaton, Hamdan
Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
description Link to publisher's homepage at http://www.myiem.org.my/
author2 sugeng@ibnusina.utm.my
author_facet sugeng@ibnusina.utm.my
Sugeng, Triwahyono
Aishah, Abdul Jalil
Halimaton, Hamdan
format Article
author Sugeng, Triwahyono
Aishah, Abdul Jalil
Halimaton, Hamdan
author_sort Sugeng, Triwahyono
title Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
title_short Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
title_full Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
title_fullStr Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
title_full_unstemmed Isomerisation of cyclohexane to methylcyclopentane over Pt/SO4 2--ZrO2 catalyst
title_sort isomerisation of cyclohexane to methylcyclopentane over pt/so4 2--zro2 catalyst
publisher The Institution of Engineers, Malaysia
publishDate 2011
url http://dspace.unimap.edu.my/xmlui/handle/123456789/13575
_version_ 1643790910971969536
score 13.222552

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