| abstract |
The present invention provides a reaction system for producing ethyl carbonate and/or ethylene glycol, the reaction comprising a guard bed system positioned upstream of a catalytic EO reactor, the guard bed system comprising a gaseous feed to be treated a feed line and an effluent line configured to remove the treated gaseous feed and two or more guard bed containers arranged in series, each guard bed container including an inlet, a bed of guard bed material, and an outlet, wherein The inlet of each guard bed container is connected to both the feed line and the outlet of the guard bed container in sequence prior to the guard bed container by means of a valve, and wherein the outlet of each guard bed container is connected to the valve by means of a valve An effluent line and the inlet of the guard bed container sequentially after the guard bed container, and wherein the guard bed container in sequence after the last guard bed container is the first protective bed container in sequence . |