PROCESS FOR MAKING FORMED COKE FROM HIGH SULFUR COAL

In a formed coke process of the type in which carbonization and calcination of coal is carried out prior to briquetting, the hot calcined char is cooled by means of a hydrogenrich gas at superatmospheric pressure so as to effect concurrent cooling and desulfurization of the char. High sulfur coal co...

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Bibliographic Details
Main Author HOLOWATY, MICHAEL O
Format Patent
LanguageEnglish
French
Published 04.09.1984
Edition3
Subjects
ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL
CHEMISTRY
DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
FIRELIGHTERS
FUELS
FUELS NOT OTHERWISE PROVIDED FOR
LIQUEFIED PETROLEUM GAS
LUBRICANTS
METALLURGY
NATURAL GAS
PEAT
PETROLEUM, GAS OR COKE INDUSTRIES
SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K
TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Summary:In a formed coke process of the type in which carbonization and calcination of coal is carried out prior to briquetting, the hot calcined char is cooled by means of a hydrogenrich gas at superatmospheric pressure so as to effect concurrent cooling and desulfurization of the char. High sulfur coal containing 1.5 to 4 wt.% sulfur can be used while obtaining a char and a formed coke product with a sulfur content of 0.8 wt.% or less. The cooling can be done in two stages: (1) a first stage in which sulfur removal and cooling to a temperature not lower than about 800.degree.F are accomplished with a hydrogenrich gas, and (2) a second stage in which further cooling to about 200.degree.F or less is accomplished with an inert gas.
Bibliography:Application Number: CA19810374519