June 2007

Special Report: Process/Plant Optimization

Consider furnace replacement for existing olefin units

Leading-edge developments enable installing new units instead of revamping existing furnaces

From the late 1960s through the 1970s, the petrochemical industry built a generation of new steam crackers with a total ethylene production capacity of several million tpy. Most of these plants have been modified and revamped since their inception. Processing capacity of these older plants ranges from 400–500 thousand tpy (Mtpy) of ethylene at present. Furnace sections of the older plants consist of typically 10 to 17 small furnaces with features including: Radiant coils with about 0.4–0.6 sec residence time Thermal efficiency below 90%, typical 87–88% Central waste-heat recovery Nitrogen oxide (NOx) emissions of about 75–100 ppmv (ref

Log in to view this article.

Not Yet A Subscriber? Here are Your Options.

1) Start a FREE TRIAL SUBSCRIPTION and gain access to all articles in the current issue of Hydrocarbon Processing magazine.

2) SUBSCRIBE to Hydrocarbon Processing magazine in print or digital format and gain ACCESS to the current issue as well as to 3 articles from the HP archives per month. $409 for an annual subscription*.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,995 for an annual subscription.  For information about group rates or multi-year terms, contact email Peter Ramsay or call +44 20 3409 2240*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}