Hydrocarbon Processing Copying and distributing are prohibited without permission of the publisher

Maximize ammonia production cost-effectively

03.20.2006  |  Patel, R.,  Onquest Inc., , Monrovia, CaliforniaWest-Toolsee, E.,  PCS Nitrogen Ltd., Trinidad, West Indies

Operating company chooses to revamp the primary reformer to increase capacity of existing unit


PCS Nitrogen Ltd. (a wholly owned subsidiary of Potash Corp.), operates four ammonia plants at the Point Lisas, Trinidad, facility. The smallest unit, the No. 3 ammonia plant with a nameplate capacity of 750 stpd was built in 1965 for Collier Carbon & Chemicals, Brea, California. In 1994, the plant was relocated to Point Lisas, Trinidad. Over time, the plant capacity was increased to 830 stpd through minor modifications – mostly to the back of the ammonia synthesis loop. Previous expansion studies showed that further rate increases were economical due to favorable natural gas (NG) costs in Trinidad. Likewise, new developments in ammonia converter technology would improve operating costs of this older unit. However, these studies also identified the primary reformer as a major bottleneck. This case history explores the planning and design stages used to revamp the primary reformer of the No. 3 ammonia unit.

To continue reading please, log in to hydrocarbonprocessing.com.

Subscribe now for premium access and unlimited access to the site, including archived articles and the process handbooks.  Start a free trial to gain access to articles from the current issue of Hydrocarbon Processing. 

Already have an account?


Subscribe today and gain unlimited and immediate access to the site. Plus, you'll receive the next 12 issues of the magazine in your choice of print or digital format. Start your subscription today.

Free trial

Start a free trial and gain immediate access to the current issue of the magazine plus additional, select content.

30 Day Trial

Related articles


Sign-up for the Free Daily HP Enewsletter!

Boxscore Database

A searchable database of project activity in the global hydrocarbon processing industry


As low oil prices make naphtha cracking margins in Europe and Asia more competitive, are investments in new, ethane-based petrochemicals capacity in the US and Middle East becoming less attractive?




View previous results

Popular Searches

Please read our Term and Conditions and Privacy Policy before using the site. All material subject to strictly enforced copyright laws.
© 2015 Hydrocarbon Processing. © 2015 Gulf Publishing Company.