January 2008

Special Report: Gas Processing Developments

Converting to a tertiary amine ups sweetening capacity at an Iranian gas facility

Debottlenecking processing units improved performance and costs

A mine is often used in gas sweetening to remove acid gases such as: hydrogen sulfide (H2S), carbon dioxide (CO2) and carbonyl sulfide (COS). They can be categorized into three groups: primary, secondary and tertiary.1,2,3,4,5,10 Primary amines react directly with H2S, CO2 and COS. Examples of these used in refineries include monoethanolamine and diglycolamine.1,2,4,10 Secondary amines react directly with H2S and CO2 and with some COS. The most commonly used in refineries is diethanolamine (DEA).1,2,4,5,10 Tertiary amines react directly with H2S, indirectly with CO2 and indirectly with a little COS. The typical tertiary amine used in refineries is methyldiethanolamine (MDEA).5,6,11,13,14

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 }}