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Supercritical fluid extraction and on-line hydrodechlorination of chlorinated biphenyls catalyzed by polymer-stabilized palladium nanoparticles

Paper ID Volume ID Publish Year Pages File Format Full-Text
48135 46494 2009 7 PDF Available
Title
Supercritical fluid extraction and on-line hydrodechlorination of chlorinated biphenyls catalyzed by polymer-stabilized palladium nanoparticles
Abstract

Polychlorinated biphenyls spiked in soil can be extracted by a continuous flow supercritical fluid carbon dioxide system and converted on-line to bicyclohexyl using a polymer-stabilized palladium nanoparticle catalyst. The catalytic hydrodechlorination of 4-chlorobiphenyl to biphenyl follows a pseudo-first-order reaction kinetics. The subsequent hydrogenation of biphenyl to bicyclohexyl involves two steps with cyclohexylbenzene as an intermediate. The hydrogenation reactions also follow pseudo-first-order kinetics and the rate constants are given in this paper.

Keywords
Polychlorinated biphenyl; Hydrodechlorination; Palladium nanoparticle; Catalysis
First Page Preview
Supercritical fluid extraction and on-line hydrodechlorination of chlorinated biphenyls catalyzed by polymer-stabilized palladium nanoparticles
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 88, Issues 1–2, 29 April 2009, Pages 173–179
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis