MANUFACTURE OF ETHYLENE

摘要

Ethylene is produced from ethane in two steps: first, ethane is oxychlorinated to ethyl chloride; and second, ethyl chloride from the first step is cracked to produce ethylene and hydrogen chloride. The process defined in claim 1 further including the step of recycling hydrogen chloride from the second step to the first (chlorination) step.

主权项

1. A process for the manufacture of ethylene from ethane comprising the steps of chlorinating ethane with hydrogen chloride and oxygen to give ethyl chloride and water at a temperature in the range of 350° to 400° C. in the presence of a catalyst comprising copper chloride, lead chloride and an alkali metal chloride, and thereafter, cracking ethyl chloride from the chlorination reaction to give ethylene and hydrogen chloride at a temperature in the range of 325° to 375° C. over a catalyst selected from the group zinc chloride, activated charcoal, and silica alumina.