A process for the production of ethylene oxide with carbon dioxide scrubbing integrated using an amine-containing absorbing solution

2002 
A process for the production of ethylene oxide, wherein the following sequence of steps is repeatedly run through in a continuous process: DOLLAR AI) is introduced a gas stream I comprising ethylene, oxygen and optionally inert components, in a reaction zone and bringing them there with a for the preparation of ethylene oxide suitable catalyst (catalyst K) at a temperature of 200 to 300 DEG C in contact, with the formation of ethylene oxide and carbon dioxide, a gas stream II is produced, which can be removed from the reaction zone (step I) DOLLAR a II) are prepared from the gas stream II by removal of ethylene oxide gas stream III is prepared by bringing the main or total amount of gas stream II in an absorption zone I into intimate contact with an aqueous absorption solution and the non-absorbed components removed as a gas stream IIIaus the absorption zone I (step II) DOLLAR a III) it provides at least a part of the gas stream a gas stream III IV is prepared by is a subset of the gas stream III or the total amount of the gas stream III into an absorption zone II with an aqueous solution L comprising (i) a tertiary alkanolamine and optionally (ii) a secondary aliphatic amine, brings into intimate contact and the carbon dioxide loaded solution L and the non-absorbed components removed as a gas stream IV from the absorption zone II and the gas stream IV, if necessary, further purified (step III) DOLLAR A IV) to set gas stream I prepared by the major or total amount of gas stream IV, ...
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