January 2013

Special Report: LNG/Gas Processing Developments

Molecular sieves in gas processing: Effects and consequences by contaminants

The principles of adsorption on molecular sieves are easy to understand, but practice sometimes reveals traps to avoid.

Terrigeol, A., CECA SA

In the natural gas processing chain, pretreatment typically includes removing acid gas, sulfur and mercury. The moisture specification of the gas depends on the downstream equipment. When cryogenic processes are involved, such as in natural gas liquids (NGLs) recovery or liquefied natural gas (LNG) production, avoiding hydrates requires water dew points that only zeolite-based molecular sieves can achieve. The principles of adsorption on molecular sieves are easy to understand, but practice sometimes reveals traps to avoid. The porous crystalline structure and the large surface area exhibiting a high electronic activity give molecular sieves their outstanding adsorption properties. Howev

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 IMMEDIATE ACCESS to the current issue as well as to 3 articles from the HP archives per month. $239 for an annual subscription.

3) Start a FULL ACCESS PLAN SUBSCRIPTION and regain IMMEDIATE ACCESS to this article, the current issue, all past issues in the HP Archive, the HP Process Handbooks, HP Market Data, and more. $1,695 for an annual subscription.  For information about group rates or multi-year terms, contact J'Nette Nichols-Davis at  jnette.davis-nichols@gulfpub.com or +1 713.520.4426.

Related Articles

From the Archive

Comments