Integration for treating effluents from oxidative dehydrogenation (ODH) reactors

Abstract

A system and method for producing ethylene, comprising: dehydrogenating ethane to ethylene in an ODH reactor over an ODH catalyst; discharging an effluent from the ODH reactor; heating an ethane-containing feed to the ODH reactor with the effluent; recovering acetic acid from the effluent as an acetic acid product; and sending a process gas comprising ethylene from the effluent for further processing to obtain an ethylene product. The technology includes energy integration, including with respect to the treatment of the effluent. Water can be recovered from the effluent as recycle water for adding to the feed.