| 摘要 |
<p>An improved method of reducing fouling and corrosion in ethylene cracking furnaces using petroleum feedstocks, comprising treating the petroleum feedstock with at least 10 ppm of a compound chosen from the group consisting of phosphite esters, phosphate esters, thiophosphite esters, thiophosphate esters and mixtures thereof, said esters being characterized by the formulae: and where X represents S or O, and R1, R2, and R3, are each independently selected from the group consisting of hydrogen, morpholine, alkyl, aryl, alkaryl, cycloaklyl, alkenyl, and aralkyl provided that at least one, and not more than two, of each of R1, R2, and R3 are morpholine.</p> |
