Cover Image

Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system

The liquid-liquid biphasic thermomorphic or temperature dependent multicomponent solvent (TMS) is an attractive alternative to the conventional single or biphasic reaction media system. In such a solvent, the catalyst remains as a residue in one of the liquid phases and the product goes preferably t...

Full description

Saved in:
Bibliographic Details
Main Authors: Shaharun, Maizatul Shima, Hilmi, Mukhtar, Yusup, Suzana, Binay K., Dutta
Format: Conference or Workshop Item
Published: 2008
Subjects:
QD Chemistry
Online Access:http://eprints.utp.edu.my/5660/1/AIChE_Extended_Abstract_.pdf
http://eprints.utp.edu.my/5660/
Tags: Add Tag
No Tags, Be the first to tag this record!
id my.utp.eprints.5660
record_format eprints
spelling my.utp.eprints.56602017-01-19T08:26:04Z Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system Shaharun, Maizatul Shima Hilmi, Mukhtar Yusup, Suzana Binay K., Dutta QD Chemistry The liquid-liquid biphasic thermomorphic or temperature dependent multicomponent solvent (TMS) is an attractive alternative to the conventional single or biphasic reaction media system. In such a solvent, the catalyst remains as a residue in one of the liquid phases and the product goes preferably to the other liquid phase providing ease of product separation and catalyst recovery. This paper describes the kinetics of hydroformylation of two higher olefins (1-octene and 1-dodecene) using a homogeneous catalyst consisting of HRh(PPh3)3(CO) and P(OPh)3 in a TMS- system containing propylene carbonate (PC), dodecane and 1,4-dioxane. The effect of concentration of the olefins, catalyst loading, partial pressure of CO and H2 and temperature on the rate of reaction has been studied at temperature of 353, 363 and 373 K. The rate was found to be first order with respect to catalyst, 1-octene and partial pressure of H3. The rate vs. PCO shows a typical case of substrate inhibited kinetics. Three generalized rate models were developed on the basis of plausible reaction pathways. The kinetic and equilibrium parameters of the models were estimated by nonlinear least square regression of experimental data. Conventional model discrimination techniques were used to identify the correct one. The rate model with H3-addition as the controlling step was found to represent the rate data. The rate model predicted the conversion of the two alkenes satisfactorily with an average absolute error of ±4.0 %. 2008-11-16 Conference or Workshop Item PeerReviewed application/pdf http://eprints.utp.edu.my/5660/1/AIChE_Extended_Abstract_.pdf Shaharun, Maizatul Shima and Hilmi, Mukhtar and Yusup, Suzana and Binay K., Dutta (2008) Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system. In: AICHE Annual Meeting 2008, November 2008, Philadelphia, USA. http://eprints.utp.edu.my/5660/
institution Universiti Teknologi Petronas
building UTP Resource Centre
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Teknologi Petronas
content_source UTP Institutional Repository
url_provider http://eprints.utp.edu.my/
topic QD Chemistry
spellingShingle QD Chemistry
Shaharun, Maizatul Shima
Hilmi, Mukhtar
Yusup, Suzana
Binay K., Dutta
Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
description The liquid-liquid biphasic thermomorphic or temperature dependent multicomponent solvent (TMS) is an attractive alternative to the conventional single or biphasic reaction media system. In such a solvent, the catalyst remains as a residue in one of the liquid phases and the product goes preferably to the other liquid phase providing ease of product separation and catalyst recovery. This paper describes the kinetics of hydroformylation of two higher olefins (1-octene and 1-dodecene) using a homogeneous catalyst consisting of HRh(PPh3)3(CO) and P(OPh)3 in a TMS- system containing propylene carbonate (PC), dodecane and 1,4-dioxane. The effect of concentration of the olefins, catalyst loading, partial pressure of CO and H2 and temperature on the rate of reaction has been studied at temperature of 353, 363 and 373 K. The rate was found to be first order with respect to catalyst, 1-octene and partial pressure of H3. The rate vs. PCO shows a typical case of substrate inhibited kinetics. Three generalized rate models were developed on the basis of plausible reaction pathways. The kinetic and equilibrium parameters of the models were estimated by nonlinear least square regression of experimental data. Conventional model discrimination techniques were used to identify the correct one. The rate model with H3-addition as the controlling step was found to represent the rate data. The rate model predicted the conversion of the two alkenes satisfactorily with an average absolute error of ±4.0 %.
format Conference or Workshop Item
author Shaharun, Maizatul Shima
Hilmi, Mukhtar
Yusup, Suzana
Binay K., Dutta
author_facet Shaharun, Maizatul Shima
Hilmi, Mukhtar
Yusup, Suzana
Binay K., Dutta
author_sort Shaharun, Maizatul Shima
title Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
title_short Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
title_full Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
title_fullStr Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
title_full_unstemmed Kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
title_sort kinetics of hydroformylation of higher olefins using rhodiumphosphite catalyst in a thermomorphic solvent system
publishDate 2008
url http://eprints.utp.edu.my/5660/1/AIChE_Extended_Abstract_.pdf
http://eprints.utp.edu.my/5660/
_version_ 1738655420423077888
score 13.211869

Similar Items