April 2020

Maintenance and Reliability

Root cause analysis for low yield of p-diethylbenzene produced by catalytic alkylation

Reliance Industries Ltd. (RIL) manufactures para-diethylbenzene (PDEB) at one of its plants by alkylation of ethylbenzene (EB) with ethylene, using RIL's own technology and super-selective catalyst.

Warke, V., Jasra, R. V., Reliance Industries Ltd.

Reliance Industries Ltd. (RIL) manufactures para-diethylbenzene (PDEB) at one of its plants by alkylation of ethylbenzene (EB) with ethylene, using RIL's own technology and super-selective catalyst.1 EB conversion and diethylbenzene (DEB) yield range from 7 wt%–10 wt% and 6%–8 wt%, respectively, under optimized process conditions. A simplified block diagram of the PDEB process is shown in Fig. 1. EB rich mixed xylene solvent (MXS) feed, ethylene and hydrogen (H2) are fed to the reactor through two heat exchangers (Exchangers A and B) and a heater. The temperature of the feed increases from a range of 139°C–141°C to a range of 155°C–158°C in the Exchanger A tube side, and from a range of 155

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. $399 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.

Related Articles

From the Archive

Comments

Comments

{{ error }}
{{ comment.comment.Name }} • {{ comment.timeAgo }}
{{ comment.comment.Text }}