Process for producing carbon disulfide
AssigneeFMC Corporation
InventorsMorton Meadow, Sidney Berkowitz
Life of this patent
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Abstract
Continuous process for producing carbon bisulfide by reaction of sulfur and hydrocarbon gas containing a multi-carbon hydrocarbon having at least three carbon atoms at a pressure in the range of 3.5 to 12 atmospheres. A stream of sulfur at a temperature of at least 650.degree. C and a stream of the hydrocarbon gas are fed into a reaction zone continuously. The temperatures and rates of flow of said vapor and gas are such that the calculated mixing temperature thereof is in the range of about 585 to 700.degree. C., and the flow conditions and mixing conditions of said gas and vapor streams are such that the hydrocarbon gas become substantially completely mixed with the sulfur vapor before the hydrocarbon comes into contact with a wall of the reaction zone.
Claims9
Process for producing carbon bisulfide by the reaction of sulfur and a hydrocarbon in gaseous state in which a stream of hydrocarbon gas comprising a hydrocarbon having at least 3 carbon atoms is introduced into a co-current stream of sulfur vapor in a tubular reactor to form a hot reaction mixture at a temperature at which the noncatalytic reaction of said sulfur and said hydrocarbon to form carbon bisulfide occurs whereby to react non-catalytically said sulfur and hydrocarbon to form carbon bisulfide in said reactor, said reactor having solid walls, wherein the improvement comprises introducing said hydrocarbon gas as a plurality of streams clustered about the axis of the tubular reactor, the flow conditions and mixing conditions of the sulfur stream and hydrocarbon stream being such that the hydrocarbon stream become substantially completely mixed with sulfur vapor before the hydrocarbon comes into contact with a solid surface in the reaction zone, so that a non-catalytic reaction occurs between substantially all the higher hydrocarbon and sulfur prior to such contact.
Dependencies are inferred from the claim text.