Catalyst agglomeration remediation
    220.
    发明授权

    公开(公告)号:US09623392B2

    公开(公告)日:2017-04-18

    申请号:US14642204

    申请日:2015-03-09

    Inventor: Joseph E. Pelati

    Abstract: A process may include shutting down a reactor in which ethylbenzene is undergoing dehydrogenation to styrene in the presence of steam and a catalyst adapted to catalyze dehydrogenation of ethylbenzene to styrene. Shutting down the reactor may include reducing a temperature of the reactor. Shutting down the reactor may include supplying a purge stream to the reactor. Supplying a purge stream may include increasing a steam-to-ethylbenzene molar ratio of an input stream to the reactor. Supplying a purge stream may include supplying steam and one or more of H2, CO2, and styrene to the reactor. The process may include stopping supply of the purge stream to the reactor and supplying an inert gas purge stream to the reactor. Shutting down the reactor may be performed without use of a steam-only purge stream.

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