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Dechlorination of chlorobenzene compounds on flyash; effects of metals, aqueous/organic solvents and temperatures

Paper ID Volume ID Publish Year Pages File Format Full-Text
47875 46484 2009 7 PDF Available
Title
Dechlorination of chlorobenzene compounds on flyash; effects of metals, aqueous/organic solvents and temperatures
Abstract

Dechlorination of chlorobenzene compounds on flyash by using a solution of calcium hydroxide and sulfur in aqueous/organic solvent at 60–170 °C, under oxygen deficient conditions was studied. High percentage of dechlorination was obtained under certain reaction conditions. The results suggested that at 90 °C, metals in general and copper and lead in particular enhanced the catalytic potential of flyash for dechlorination by hydrodechlorination and substitution reactions. But at high temperatures (120–170 °C), dechlorination process was adversely affected by these metals. The effects of water, organic solvents, temperatures and heating time, were studied and reactions conditions were optimized to get maximum dechlorination.

Keywords
Flyash; Hydrodechlorination; Temperature; Aqueous/organic solvents; Metals
First Page Preview
Dechlorination of chlorobenzene compounds on flyash; effects of metals, aqueous/organic solvents and temperatures
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 86, Issues 3–4, 23 February 2009, Pages 152–158
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis