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    • 7. 发明申请
    • PROCESS FOR PRODUCING ETHANOL
    • 生产乙醇的方法
    • WO2015193423A1
    • 2015-12-23
    • PCT/EP2015/063692
    • 2015-06-18
    • BP P.L.C.BAILEY, CraigBOLTON, Leslie, WilliamDEELEY, Jon, Michael, Stewart
    • BAILEY, CraigBOLTON, Leslie, WilliamDEELEY, Jon, Michael, Stewart
    • C07C29/149C07C67/08
    • C07C29/149C07C67/08Y02P20/582C07C31/08C07C69/14C07C31/04
    • A process for the hydrogenation of methyl acetate to methanol and ethanol comprising feeding a hydrogenation feed composition comprising methyl acetate and water, together with hydrogen and at least one carbon oxide selected from carbon monoxide and carbon dioxide, into a hydrogenation unit containing a copper-zinc oxide hydrogenation catalyst and hydrogenating the methyl acetate to produce a hydrogenation product stream comprising ethanol, methanol, unreacted methyl acetate, water, unreacted hydrogen, carbon monoxide, carbon dioxide, and ethyl acetate, wherein said hydrogenation unit is operated in the vapour phase at elevated temperature, preferably at a temperature in the range of from 180 to 270 °C, and elevated pressure, preferably in the range of from 20 to 100 bara, and wherein the total molar ratio of hydrogen to methyl acetate fed to the hydrogenation unit is in the range of from 5:1 to 20:1, and the total molar ratio of methyl acetate to carbon oxide(s) fed to the hydrogenation unit is in the range of from 1:2 to 100:1, and wherein the hydrogenation product stream is separated into a first liquid product stream comprising the majority of the ethanol, methanol, unreacted methyl acetate, water, and ethyl acetate, and a first gaseous product stream comprising the majority of the unreacted hydrogen, carbon monoxide, and carbon dioxide, and wherein at least a portion of the first gaseous product stream is recycled to the hydrogenation unit.
    • 一种将乙酸甲酯氢化成甲醇和乙醇的方法,包括将含有乙酸甲酯和水的氢化进料组合物与氢气和至少一种选自一氧化碳和二氧化碳的碳氧化物一起加入含有铜 - 锌的氢化单元 氧化氢化催化剂和氢化乙酸甲酯以产生包含乙醇,甲醇,未反应的乙酸甲酯,水,未反应的氢气,一氧化碳,二氧化碳和乙酸乙酯的氢化产物流,其中所述氢化单元在升高的气相中操作 温度,优选在180-270℃的温度和升高的压力下,优选在20至100巴的范围内,并且其中进料到氢化单元的氢气与乙酸甲酯的总摩尔比为 5:1至20:1的范围,以及供给氢气的乙酸甲酯与碳氧化物的总摩尔比 离子单元在1:2至100:1的范围内,并且其中氢化产物流被分离成包含大部分乙醇,甲醇,未反应的乙酸甲酯,水和乙酸乙酯的第一液体产物流,和 包含大部分未反应的氢,一氧化碳和二氧化碳的第一气态产物流,并且其中至少一部分第一气态产物流被再循环到氢化单元。
    • 8. 发明申请
    • PROCESS FOR THE PRODUCTION OF ETHANOL BY HYDROGENATION OF METHYL ACETATE
    • 通过氢化乙酸甲酯生产乙醇的方法
    • WO2015097086A1
    • 2015-07-02
    • PCT/EP2014/078723
    • 2014-12-19
    • BP P.L.C.BAILEY, CraigBOLTON, Leslie William
    • BAILEY, CraigBOLTON, Leslie William
    • C07C29/149C07C31/08C07C67/08C07C69/14
    • C07C29/149C07C29/82C07C67/08Y02P20/582C07C31/08C07C69/14
    • Process for the production of ethanol from acetic acid and hydrogen, said process comprising: reacting in an esterification reaction vessel methanol with acetic acid in the presence of an esterification catalyst and an entrainer to form a product comprising entrainer, methyl acetate and water, and in a distillation column, recovering from the product an overhead product fraction comprising methyl acetate, methanol and water; feeding the overhead product fraction, together with hydrogen, into a hydrogenation unit containing a copper based hydrogenation catalyst, to produce a hydrogenation product stream comprising ethanol, methanol, unreacted methyl acetate, unreacted hydrogen, ethyl acetate and water; cooling the hydrogenation product stream; separating the cooled hydrogenation product stream into a liquid phase which comprises the majority of the methanol, ethanol, methyl acetate, ethyl acetate and water, and a gaseous phase which comprises the majority of the unreacted hydrogen; recycling at least part of the gaseous phase to the hydrogenation unit; separating a lower boiling product stream comprising methanol, methyl acetate and ethyl acetate, and a higher boiling product stream comprising ethanol, water, from the liquid phase; recycling at least part of the lower boiling product stream to the esterification reaction vessel; and, optionally removing water from the higher boiling product stream.
    • 用于从乙酸和氢气生产乙醇的方法,所述方法包括:在酯化反应容器中,在酯化催化剂和夹带剂的存在下,使甲醇与乙酸反应,形成包含夹带剂,乙酸甲酯和水的产物, 蒸馏塔,从产物中回收包含乙酸甲酯,甲醇和水的塔顶产物馏分; 将塔顶产物馏分与氢一起加入到含有铜基氢化催化剂的氢化单元中,以产生包含乙醇,甲醇,未反应的乙酸甲酯,未反应的氢气,乙酸乙酯和水的氢化产物流; 冷却氢化产物流; 将冷却的氢化产物流分离成包含大部分甲醇,乙醇,乙酸甲酯,乙酸乙酯和水的液相,以及包含大部分未反应氢的气相; 将至少部分气相再循环至氢化单元; 从液相中分离包含甲醇,乙酸甲酯和乙酸乙酯的较低沸点产物流和包含乙醇,水的较高沸点产物流; 将至少部分较低沸点的产物流再循环至酯化反应器; 并且任选地从较高沸点的产物流中除去水。