February 2009

Special Report: Clean Fuels

Improve operations of your Claus unit

New maintenance and operating procedures extend efficiency and service of sulfur recovery catalysts

ZareNezhad, B., Ministry of Science, Research and Technology, Semnan University

Thermal aging, hydrothermal aging, pore and surface blockage, sulfate poisoning and sulfur condensation are the most common causes of catalyst deactivation in Claus sulfur recovery units (SRUs). The Claus process is widely used to convert hydrogen sulfide (H2S) to sulfur. The operating requirements for Claus plants are dictated by processing operations of refineries and increasingly stringent emission control regulations. The Claus units must manage the ever increasing H2S loads generated by other refinery processing units. Refiners seek improved reliability of the Claus unit and its catalyst to manage higher sulfur loading for the refinery. Background. In the Claus process, recovery of el

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 }}