METHOD OF PRODUCING VINYL CHLORIDE

摘要

1. A process for the manufacture of vinyl chloride by thermal cracking of 1,2-dichloroethane, with the reaction gas leaving the reaction furnace being cooled indirectly by a liquid or gaseous coolant for subsequent splitting by distillation, said process incorporating the improvement which comprises performing the complete cooling in at least 2 stages, the reaction gas mixture being cooled to a temperature level of 220 to 120 degrees C at an average cooling rate per second of at least 1/10 of the temperature in terms of degrees C at which this mixture penetrates into the zone of indirect cooling, the heat transferred to the coolant being utilized for heating any process equipment and the reaction gas mixture together with any condensate resulting from this mixture being further cooled directly or indirectly in at least one downstream stage.