发明名称 |
PROCESSES FOR THE PRODUCTION OF ETHYLENE GLYCOL |
摘要 |
A process for the production of ethylene glycol comprising: (i) supplying ethylene and oxygen and an organic chloride moderator to an EO reactor, thereby producing a reactor product stream; (ii) supplying the reactor product stream to an EO absorber, thereby producing a fat absorbent stream; (iii) supplying the fat absorbent stream to an EO stripper, thereby producing a concentrated ethylene oxide stream and a lean absorbent stream; (iv) recirculating the lean absorbent stream to the EO absorber; and (v) supplying the ethylene oxide stream and/or the ethylene carbonate stream to hydrolysis reactors with an alkali metal salt hydrolysis catalyst to form an ethylene glycol stream; wherein the process additionally comprises: (vi) removing a glycol bleed stream from the ethylene oxide stripper; and (vii) adding a base to the ethylene oxide stripper such that the pH in the bottom section of the stripper is maintained from 9.5 to 12.0. |
申请公布号 |
US2012197048(A1) |
申请公布日期 |
2012.08.02 |
申请号 |
US201213362835 |
申请日期 |
2012.01.31 |
申请人 |
VAN OGTROP JAN;SMAARDIJK ABRAHAM ADRIAAN;HESSING JACQUELINE;STICHTER HENDRIK;SHELL OIL COMPANY |
发明人 |
VAN OGTROP JAN;SMAARDIJK ABRAHAM ADRIAAN;HESSING JACQUELINE;STICHTER HENDRIK |
分类号 |
C07C27/00 |
主分类号 |
C07C27/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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