PROCESS FOR REDUCING THE SULPHUR CONTENT OF COAL AND COAL CHAR AND THE TION TEMPERATURE OF COAL CHAR

Coal and like carbonaceous materials are converted to char by heating with restricted oxygen access at a temperature not exceeding about 870.degree.C. (1600.degree.F.) and the resultant char is desulphurized by treatment with a hot liquid alkali, preferably with a molten caustic alkali such as sodiu...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	LONGANBACH, JAMES R, ROBINSON, LEON
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY COMPOUNDS THEREOF FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR INORGANIC CHEMISTRY LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY NATURAL GAS NON-METALLIC ELEMENTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	Coal and like carbonaceous materials are converted to char by heating with restricted oxygen access at a temperature not exceeding about 870.degree.C. (1600.degree.F.) and the resultant char is desulphurized by treatment with a hot liquid alkali, preferably with a molten caustic alkali such as sodium or potassium hydroxide or a mixture thereof at a temperature in the range 260-400.degree.C. (500-750.degree.F.) for a residence time of about 2 to about 30 minutes, whereafter the desulphurized char is separated form the alkali and freed from the latter as by washing with water.