September 2007

Columns

HP Control: Controlling the mundane naphtha stabilizer, Part 1

Consider the distillation column in Fig. 1. It is called a "stabilizer" and removes LPG from naphtha. Every refinery has at least three of them, and often five or more, one each in every crude unit, r..

Friedman, Y. Z., Petrocontrol

Consider the distillation column in Fig. 1. It is called a "stabilizer" and removes LPG from naphtha. Every refinery has at least three of them, and often five or more, one each in every crude unit, reformer, FCC, hydrocracker, coker, isomerization and possibly other units. Being simple in structure, and with a well-defined objective, you would think controlling a stabilizer is a cinch. Why then do we encounter so many of them being run with the main DCS controllers in manual?   Fig. 1    Control configuration for a stabilizer used to remove LPG from naphtha. The name stabilize

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 J'Nette Davis-Nichols at Jnette.Davis-Nichols@GulfEnergyInfo.com or +1 713.520.4426*.

*Access will be granted the next business day.

Related Articles

From the Archive

Comments

Comments

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