| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention concerns method of ethylene oxide production, involving highly selective epoxidation catalyst including 0.1 to 10 micromol of rhenium per gram of total catalyst weight. Method involves operation of ethylene oxide production system including epoxidation reaction system, ethylene oxide extraction system and carbon dioxide removal system operated in direct connection to each other to ensure ethylene oxide and extraction of ethylene oxide product. To maintain low carbon dioxide concentration in feed mix of epoxidation reactor, major part of gas flow comprising at least 30% to 100%, from ethylene oxide extraction system extracting ethylene oxide from product containing carbon dioxide, is fed to carbon dioxide removal system, which produces gas flow with reduced carbon dioxide content. Gas flow with reduced carbon dioxide content is combined with oxygen and ethylene to obtain feed mix for epoxidation reactor. In addition invention claims method of obtaining 1,2-ethanediene or simple 1,2-ethanediene ether from ethylene oxide, involving obtainment of ethylene oxide by the indicated method. ^ EFFECT: improved method. ^ 13 cl, 4 dwg, 1 tbl, 2 ex |
