PROCESS FOR PRODUCING ETHYLENE FROM HIGHER HYDROCARBONS

摘要

PROCESS FOR PRODUCING ETHYLENE FROM HIGHER HYDROCARBONS A process for producing ethylene from higher hydrocarbons comprising hydropyrolyzing a hydrocarbon oil in the presence of hydrogen, rapidly heating the hydropyrolysis product and then immediately expanding such product to a pressure of less than about 3 atmospheres and a temperature in the range of about 750.degree.C to 950.degree.C, followed by immediate quenching of the expanded product to a temperature below about 500.degree.C and thereafter recovering ethylene from the quenched product.