Aromatic compounds in small amounts function as antifoulant additives in pyrolysis furnaces which are subjected to elevated temperatures from about 500.degree. C. to about 1200.degree. C. when thermally convening hydrocarbons to ethylene as well as other useful products. These furnaces produce...http://www.google.fr/patents/US5733438?utm_source=gb-gplus-shareBrevet US5733438 - Coke inhibitors for pyrolysis furnaces
