Since the 1940s, the present form of the Claus sulfur recovery unit (SRU) has been successfully applied in the refining and gas processing industries.
Since the 1940s, the present form of the Claus sulfur recovery unit (SRU) has been successfully applied in the refining and gas processing industries. The SRU has improved to the extent of being able to recover elemental sulfur from hydrogen sulfide (H2S)-bearing streams with up to 98% efficiency on a continuous basis, depending on the quality of the feed stream. Even these low emissions from SRUs were often considered too great, and legislation in many countries required recoveries in excess of the capability of this process. Emissions levels as low as 250 ppm of SO2 have been set. These more exacting standards have necessitated the development of the tail gas treating unit (TGTU) to extend
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.