发明授权
- 专利标题: Process for the preparationn of hydrocarbons from oxygenates
- 专利标题(中): 从含氧化合物制备烃的方法
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申请号: US12725555申请日: 2010-03-17
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公开(公告)号: US08067474B2公开(公告)日: 2011-11-29
- 发明人: Poul Erik Højlund Nielsen , Finn Joensen , John Bøgild Hansen , Esben Lauge Sørensen , Jørgen Madsen , Rachid Mabrouk
- 申请人: Poul Erik Højlund Nielsen , Finn Joensen , John Bøgild Hansen , Esben Lauge Sørensen , Jørgen Madsen , Rachid Mabrouk
- 申请人地址: DK Lyngby
- 专利权人: Haldor Topsøe A/S
- 当前专利权人: Haldor Topsøe A/S
- 当前专利权人地址: DK Lyngby
- 代理机构: Dickstein Shapiro LLP
- 优先权: DK200900397 20090323
- 主分类号: C07C27/00
- IPC分类号: C07C27/00
摘要:
A process for the preparation of hydrocarbon products comprising the steps of a) providing a synthesis gas comprising hydrogen, carbon monoxide and carbon dioxide; (b) reacting at least part of the synthesis gas to an oxygenate mixture comprising methanol and dimethyl ether in presence of one or more catalysts which together catalyse a reaction of hydrogen and carbon monoxide to oxygenates at a pressure of at least 3 MPa; (c) withdrawing from step (b) a reaction mixture comprising amounts of methanol, dimethyl ether, carbon dioxide and water together with unreacted synthesis gas and cooling the reaction mixture to obtain a liquid phase with the amounts of methanol, dimethyl ether and water and simultaneously dissolving carbon dioxide in the liquid phase; (d) separating the carbon dioxide containing liquid phase from a remaining gaseous phase comprising hydrogen and carbon monoxide; (e) evaporating and reacting the liquid phase being withdrawn from step (d) in presence of a catalyst being active in the conversion of oxygenates to higher hydrocarbons and a tail gas comprising carbon dioxide; (f) separating tail gas from a liquid phase with the higher hydrocarbons; and wherein pressure employed in step (c) to step (f) is substantially the same as employed in step (b).
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