September 2003

Instrumentation/Process Control

New control scheme improves SRU control

Sulfur emissions were reduced approximately 250 metric tons per year

Achieving the highest sulfur recovery unit (SRU) efficiency is becoming more relevant in the refining industry due to environmental restrictions in emissions limits. A new control scheme application increases tail gas H2S/SO2 controller accuracy by reducing variability of its deviation with respect to the setpoint. It uses a new algorithm that enables better use of the main and trim air to compensate for feed quantity and composition changes. Standard deviation is reduced five times compared with classical tail gas controllers and two times in relation to adaptive controllers. This algorithm has been successfully

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 }}