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Evaluation of the catalytic activity of the water-soluble organometallic complex [Rh(μ-Pz)(CO)(TPPTS)]2 in the hydroformylation of short-chain olefins in a refinery's naphtha cut

Paper ID Volume ID Publish Year Pages File Format Full-Text
42922 45947 2009 5 PDF Available
Title
Evaluation of the catalytic activity of the water-soluble organometallic complex [Rh(μ-Pz)(CO)(TPPTS)]2 in the hydroformylation of short-chain olefins in a refinery's naphtha cut
Abstract

A water-soluble organometallic complex of rhodium, namely [Rh(μ-Pz)(CO)(TPPTS)]2 [Pz = pyrazolate; TPPTS = P(C6H4SO3Na)3, tris(sodium-m-trisulphonated-triphenyl-phosphine)] was evaluated in the catalytic hydroformylation of the short-chain olefins contained in a naphtha cut from “El Palito” refinery in Venezuela. The reactions were carried under moderate conditions in an aqueous/organic biphasic medium. The naphtha current was characterized. Under the best reaction conditions (825 psi of syn-gas, T = 70 °C, S/C = 200:1) a very good conversion to aldehydes (96%) was obtained after 72 h. The mercury test was performed to the system proving that the reaction proceeds through molecular species. The recycling of the aqueous solution of the catalytic precursor was performed four times resulting in a decrease of activity from 96% to 60%.

Graphical abstractA water-soluble organometallic complex of rhodium, namely [Rh(μ-Pz)(CO)(TPPTS)]2, was evaluated in the catalytic hydroformylation of the short-chain olefins contained in a naphtha cut from “El Palito” refinery in Venezuela. The reactions were carried under moderate conditions in an aqueous/organic biphasic medium. The naphtha current was characterized. Under the best reaction conditions (825 psi of syn-gas, T = 70 °C, S/C = 200:1) a very good conversion to aldehydes (96%) was obtained after 72 h. The mercury test was performed to the system proving that the reaction proceeds through molecular species. The recycling of the aqueous solution of the catalytic precursor was performed four times resulting in a decrease of activity from 96% to 60%.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Hydroformylation; Rhodium; Phosphines; Naphtha; Aqueous biphasic catalysis
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Evaluation of the catalytic activity of the water-soluble organometallic complex [Rh(μ-Pz)(CO)(TPPTS)]2 in the hydroformylation of short-chain olefins in a refinery's naphtha cut
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 358, Issue 1, 30 April 2009, Pages 21–25
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
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Price was $35.95
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