Editing Styrene (section)

====From benzene and ethane====
Another route to styrene involves the reaction of benzene and [[ethane]]. This process is being developed by Snamprogetti and Dow. Ethane, along with ethylbenzene, is fed to a dehydrogenation reactor with a catalyst capable of simultaneously producing styrene and ethylene. The dehydrogenation effluent is cooled and separated and the ethylene stream is recycled to the alkylation unit. The process attempts to overcome previous shortcomings in earlier attempts to develop production of styrene from ethane and benzene, such as inefficient recovery of aromatics, production of high levels of heavies and tars, and inefficient separation of [[hydrogen]] and ethane. Development of the process is ongoing.<ref>{{cite web |url=http://www.chemsystems.com/reports/search/docs/toc/0708_4_toc.pdf |title=CHEMSYSTEMS.COM |website=www.chemsystems.com |access-date=1 May 2018 |url-status=dead |archive-url=https://web.archive.org/web/20110708142010/http://www.chemsystems.com/reports/search/docs/toc/0708_4_toc.pdf |archive-date=8 July 2011}}</ref>