skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Desulfurization of coal

Abstract

A system for desulfurization of sulfur-containing coal comprises apparatus for comminuting sulfur-containing coal, a gas/solid reactor having an inlet and an outlet, a connection or conduit for supplying the comminuted sulfur-containing coal to the reactor inlet, and an oxidant gas generator constructed in accordance with U.S. Pat. No. 4,248,681 connected to supply an oxidant gas to the reactor. The oxidant gas produced from concentrated salt solutions contains substantial amounts of chlorine dioxide, while the oxidant gas produced from dilute salt solutions contains other oxygen-containing gases. The oxidant gas is introduced at pressures which may range from sub-atmospheric to super-atmospheric and the comminuted coal is mixed or agitated to insure efficient gas/solid contact. The oxidant gas oxidizes the sulfur contaminants of the coal to gaseous sulfur oxides which are removed from the reactor. The desulfurized comminuted coal may be slurried for pipeline transmission.

Inventors:
;
Publication Date:
OSTI Identifier:
5756110
Patent Number(s):
US 4496441
Assignee:
Tetravalent Inc. EDB-85-100992
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 17 Aug 1983; Other Information: PAT-APPL-523843
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; COAL; CHEMICAL REACTORS; DESULFURIZATION; PULVERIZERS; SULFUR COMPOUNDS; REMOVAL; CHEMICAL REACTIONS; CHLORINE OXIDES; COAL PREPARATION; COMMINUTION; FUEL FEEDING SYSTEMS; OXIDATION; OXIDIZERS; PRESSURE GRADIENTS; SALTS; CARBONACEOUS MATERIALS; CHALCOGENIDES; CHLORINE COMPOUNDS; ENERGY SOURCES; FOSSIL FUELS; FUEL SYSTEMS; FUELS; HALOGEN COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; 013000* - Coal, Lignite, & Peat- Transport, Handling, & Storage; 010402 - Coal, Lignite, & Peat- Purification & Upgrading

Citation Formats

Sweeney, C.T., and Bird, J.K. Desulfurization of coal. United States: N. p., 1985. Web.
Sweeney, C.T., & Bird, J.K. Desulfurization of coal. United States.
Sweeney, C.T., and Bird, J.K. Tue . "Desulfurization of coal". United States.
@article{osti_5756110,
title = {Desulfurization of coal},
author = {Sweeney, C.T. and Bird, J.K.},
abstractNote = {A system for desulfurization of sulfur-containing coal comprises apparatus for comminuting sulfur-containing coal, a gas/solid reactor having an inlet and an outlet, a connection or conduit for supplying the comminuted sulfur-containing coal to the reactor inlet, and an oxidant gas generator constructed in accordance with U.S. Pat. No. 4,248,681 connected to supply an oxidant gas to the reactor. The oxidant gas produced from concentrated salt solutions contains substantial amounts of chlorine dioxide, while the oxidant gas produced from dilute salt solutions contains other oxygen-containing gases. The oxidant gas is introduced at pressures which may range from sub-atmospheric to super-atmospheric and the comminuted coal is mixed or agitated to insure efficient gas/solid contact. The oxidant gas oxidizes the sulfur contaminants of the coal to gaseous sulfur oxides which are removed from the reactor. The desulfurized comminuted coal may be slurried for pipeline transmission.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}