Abstract A process for separation of vinyl chloride from inert gases. Such process can be carried out A. PASSING INERT GASES CONTAINING VINYLCHLORIDE OVER A LAYER OF ACTIVE CARBON WHICH ADSORBES VINYL CHLORIDE THE INERT GASES BEING REMOVED IN THE ATMOSPHERE; VINYL CHLORIDE RETAINED ON THE ACTIVE CARBON IS DESORBED BY MEANS OF STEAM SEPARATED BY CONDENSATION OF STEAM THE LATTER BEING ELIMINATED TO THE SEWER AND THE LAYER OF ACTIVE CARBON BEING DRYED THEN COALED IN ORDER TO TAKE OVER THE CYCLE B. PASSING INERT GASES CONTAINING VINYL CHLORIDE OVER A LAYER OF ACTIVE CARBON WHICH IS IMPREGNATED WITH HYDROQUINONE AND FURTHER PROCEEDED AS SHOWN ABOVE. One obtains a total separation of vinyl chloride from inert gases. The active carbon has a long lasting utilization and by impregnation of the active carbon layer with hydroquinone the length of time of utilization is increased. The installation is unsophisticated necessitating reduced investments and operation costs and the process is easily and safely managed. The consumption of utilities is reduced and no energy is consumed.
The improvement defined in claim 1 wherein said activated carbon is impregnated with 0.1 to 2.0 percent hydroquinone.
Claim 2
Dependent Claim
136 words
A process for the separation of vinyl chloride from a mixture of inert gases therewith comprising the steps of: adsorbing said vinyl chloride on an activated-carbon layer having granules of 1 to 6 mm particle size while cooling said layer and maintaining it at a temperature of about -10* to +35* C to remove said vinyl chloride from said mixture; withdrawing said inert gases from said layer after adsorption of the vinyl chloride; desorbing said vinyl chloride from said layer by heating the activated carbon with steam at a temperature of about 100* to 200* C, condensing said steam, removing the condensate and releasing the desorbed vinyl chloride; regenerating said activated-carbon layer after desorption by heating said layer and passing a stream of inert gas thereover; and impregnating said activated-carbon layer with hydroquinone prior to adsorption.
Claim 3
Dependent Claim
52 words
The process defined in claim 3 wherein: said granules are of a particle sized 2 to 3 mm; said layer is impregnated with about 0.1 to 2 percent hydroquinone; during desorption the temperature to which said layer is heated is about 130* to 150* C; and during adsorption, said layer is water-cooled.
Claim 4
Dependent Claim
16 words
The process defined in claim 3 wherein, during adsorption, said layer is cooled by being brine-chilled.