A method of reducing the formation of coke on the super- ficies metal in contact with a gaseous stream containing hydrocarbons in a cracking process termi-co

摘要

The formation of carbon on metals exposed to hydrocarbons in a thermal cracking process is reduced by contacting such metals with an antifoulant selected from the group consisting of a combination of tin and phosphorus, a combination of phosphorus and antimony and a combination of tin, antimony and phosphorus.