Ethylene from Naphtha, Millisecond Cracking

Millisecond cracking is a high-temperature and ultrashort-residence-time steam cracking process developed by Pullman Kellogg. In comparison with conventional steam cracking, the new cracking process offers higher ethylene yields and lower fuel product yields.

A design and economic study on Millisecond cracking of naphtha at a 1,000 million lb/yr ethylene production rate is discussed herein, and the economics are compared with those of conventional steam cracking. The study indicates that Millisecond cracking has an economic advantage for high and moderate cracking severity levels.