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    • 4. 发明申请
    • PREPARATION OF FUEL GRADE DIMETHYL ETHER
    • 燃料级二甲醚的制备
    • WO1996023755A1
    • 1996-08-08
    • PCT/DK1996000047
    • 1996-01-29
    • HALDOR TOPSOE A/SVOSS, BodilJOENSEN, FinnHANSEN, John, Bogild
    • HALDOR TOPSOE A/S
    • C07C41/01
    • C07C41/01C07C43/043
    • A process for the preparation of fuel grade dimethyl ether from a hydrogen and carbon oxides containing synthesis gas, wherein the synthesis gas is converted to a mixed process gas of dimethyl ether, methanol and water in one or more catalytic reactors in the presence of a catalyst having activity both in synthesis of methanol and methanol dehydration; the mixed process gas is cooled to obtain a liquid process phase containing the produced methanol, dimethyl ether and water and a gaseous process phase containing unconverted synthesis gas and a part of produced dimethyl ether, which process comprises further steps of separating the gaseous phase and liquid phase; passing the liquid phase to a first distillation unit and distilling off a top product stream containing dimethyl ether and methanol and withdrawing a bottom stream containing methanol and water; passing the bottom stream to a second distillation unit and distilling off a methanol containing stream, introducing the methanol into a purge washing unit; washing the gaseous process phase with the methanol in a purge washing unit and withdrawing from the unit a washing stream of dimethyl ether and methanol; converting a part of the methanol in the washing stream to dimethyl ether and water in a catalytic dehydration reactor by contact with a dehydration catalyst; withdrawing from the dehydration reactor a product stream of dimethyl ether, water and unconverted methanol; and combining the top product stream from the first distillation unit with the product stream from the dehydration reactor to obtain a combined product stream of fuel grade dimethyl ether.
    • 一种从含有合成气的氢和碳氧化物制备燃料级二甲醚的方法,其中在一种或多种催化反应器中在催化剂存在下将合成气转化为二甲醚,甲醇和水的混合工艺气体 在甲醇和甲醇脱水合成中具有活性; 将混合工艺气体冷却以获得含有所生产的甲醇,二甲醚和水的液体工艺相和含有未转化的合成气和一部分生产的二甲醚的气态工艺相,该方法包括进一步分离气相和液体 相; 将液相通入第一蒸馏单元并蒸馏出含有二甲醚和甲醇的顶部产物流并且抽出含有甲醇和水的底部物流; 将塔底物流送入第二蒸馏装置并蒸除含甲醇的料流,将甲醇引入清洗洗涤装置; 用清洗洗涤单元中的甲醇洗涤气态过程相,并从该单元中取出二甲醚和甲醇的洗涤流; 通过与脱水催化剂接触将一部分洗涤流中的甲醇转化成催化脱水反应器中的二甲醚和水; 从脱水反应器中取出二甲醚,水和未转化甲醇的产物流; 并将来自第一蒸馏单元的顶部产物流与来自脱水反应器的产物流混合以获得燃料级二甲醚的组合产物流。
    • 5. 发明申请
    • PROCESS FOR THE PREPARATION OF HYDROCARBONS FROM SYNTHESIS GAS
    • 从合成气中制备碳氢化合物的方法
    • WO2010149263A1
    • 2010-12-29
    • PCT/EP2010/003368
    • 2010-06-03
    • HALDOR TOPSOE A/SSØRENSEN, Esben LaugeJOENSEN, FinnNIELSEN, Poul Erik HØJLUND
    • SØRENSEN, Esben LaugeJOENSEN, FinnNIELSEN, Poul Erik HØJLUND
    • C07C1/04C07C1/12
    • C10G2/32C10G3/49C10G2300/4012C10G2300/4081C10G2400/02Y02P30/20
    • 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 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 4 MPa; (c) withdrawing from step (b) the oxygenate mixture comprising amounts of methanol, dimethyl ether, carbon dioxide and water together with unreacted synthesis gas and introducing the entire amount of the oxygenate mixture without further treatment into a catalytic oxygenate conversion step (d); (d) reacting the oxygenate mixture in presence of a catalyst being active in the conversion of oxygenates to higher hydrocarbons; (e) withdrawing an effluent from step (d) and separating the effluent into a tail gas, a liquid hydrocarbon phase containing the higher hydrocarbons produced in step.(d) and a liquid aqueous phase, wherein the pressure employed in steps (c) to (e) is substantially the same as employed in step (b).
    • 一种用于制备烃产物的方法,包括以下步骤:(a)提供包含氢气,一氧化碳和二氧化碳的合成气; (b)在一种或多种催化剂的存在下使合成气与包含甲醇和二甲醚的含氧混合物反应,所述催化剂在至少4MPa的压力下一起催化氢和一氧化碳与含氧化合物的反应; (c)从步骤(b)中取出含有甲醇,二甲醚,二氧化碳和水的含氧化合物混合物以及未反应的合成气,并将全部量的含氧化合物混合物引入催化氧化合物转化步骤(d)中, ; (d)在含氧化合物转化为高级烃的催化剂存在下使含氧化合物混合物反应; (e)从步骤(d)中取出流出物并将流出物分离成尾气,包含步骤(d)中产生的高级烃的液体烃相和液体水相,其中步骤(c)中使用的压力 至(e)基本上与步骤(b)中使用的相同。