July 2005

Process Technology/Distillation

Consider dividing wall distillation to separate solvents

Using an established technology as part of a revamp installation provided new products at lower capital and operating costs than conventional methods

Plana Ruiz, F. J., CEPSA; Spencer, G., Koch-Glitsch UK

CEPSA Refinery at Algeciras in Southern Spain operates a solvent distillation unit downstream of a catalytic reforming plant. This unit separates paraffins and isoparaffins via distillation to obtain solvents of various compositions and boiling point ranges. In 2002, following market demand for solvent-free n-hexane, CepSA considered revamping the conventional distillation column train to produce a new solvent. The refinery applied optimized process simulation models for both conventional distillation sequences and also a sequence using a dividing wall column (DWC). The engineering contract package was prepared and implemented by a contractor working from offices local to the refinery. The

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



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