Selective Precombustion Desulphurization of Ohio Coals Using Supercritical Fluids

Abstract

Desulphurization of coal involves the removal of both the inorganic and organic forms of sulphur. Several physical and a few chemical methods are available for the removal of inorganic sulphur. Removal of organic sulphur requires the use of chemical cleaning methods. This paper presents the results of a sulphur removal technique that employs supercritical fluids. The results obtained from the use of methanol-water mixtures as solvents are examined. The solvent composition in this desulphurization technique can be tailored to selectively reject sulphur without significantly reducing the calorific value of the treated coal. The sulphur-containing organic species in the liquid product from the desulphurization experiments have been characterized using wet chemical methods and g.c.-m.s. analysis.

Department(s)

Chemical and Biochemical Engineering

Keywords and Phrases

Desulpherization; Supercritical; Extraction

International Standard Serial Number (ISSN)

0016-2361

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1989 Elsevier, All rights reserved.

Publication Date

01 Jan 1989

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