October 2010

Petrochemical Developments

Troubleshoot silicon contamination on catalysts

What are the sources, impacts and possible solutions to controlling this problem in your hydrotreater?

Using new upstream technologies and diversified feedstocks from different sources has increased the level of silicon contamination that has a significant impact on hydrotreating catalyst activity. Silicon deposition on hydrotreater catalyst surfaces significantly reduces its desulfurization activity. In addition, silicon deposition renders the catalyst non-regenerable. During regeneration, the silicon would be irreversibly adsorbed onto the entire catalyst surface, thereby further deactivating active sites. This article discusses the impact by silicon on pygas and naphtha hydrotreatment catalysts at Braskem’s petrochemical plants. Mitigation actions taken by the process engineering tea

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