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    • 14. 发明申请
    • SINGLE LOOP MULTISTAGE FUEL PRODUCTION
    • 单循环多级燃料生产
    • WO2012064844A2
    • 2012-05-18
    • PCT/US2011059975
    • 2011-11-09
    • PRIMUS GREEN ENERGY INCFANG HOWARD LBEN-REUVEN MOSHEBOYLE RICHARD EKOROS ROBERT M
    • FANG HOWARD LBEN-REUVEN MOSHEBOYLE RICHARD EKOROS ROBERT M
    • C10G2/00B01J23/72C07C2/00C10L1/02C10L3/08
    • C07C1/041B01J8/0449B01J2219/0004C07C29/151C07C41/09C10G2/32C10G2/33C10G2/331C10G2/332C10G3/42C10G3/46C10G3/48C10G3/49C10G45/58C10G45/60C10G2300/1022C10G2300/304C10G2300/4025C10G2300/4081C10G2400/02C10G2400/04C10G2400/08C10G2400/30Y02P20/52Y02P30/20C07C31/04C07C43/043
    • Synthetic fuels are produced from synthesis gas in a four-stage reactor system with a single recycle loop providing the requisite thermal capacity to moderate the high heat release of the reactions and to provide the reactants and reaction environments for the efficient operation of the process. The first stage converts a portion of the synthesis gas to methanol, the second stage converts the methanol to dimethylether, the third stage converts the methanol and dimethylether to fuel and the fourth stage converts the high melting point component, durene, and other low volatility aromatic components such as tri- and tetra-methylbenzenes to high octane branched paraffins. The four-stage catalyst used for hydrotreating is resistant to CO poisoning. The reactions i produce water as a side product that is carried through to a high pressure separator after the fourth stage. The streams from the separator are a liquid fuel stream, a water stream and a gaseous stream that contains light hydrocarbon gases and the unreacted synthesis gas. The larger part of this gas stream is recycled to the inlet of the first stage and mixed with the fresh synthesis gas stream. Alternatively, the fresh synthetic gas stream is mixed with the product of the second stage. The smaller part of the gas stream from the separator is sent to hydrocarbon recovery and to fuel gas used for providing preheat of various streams. The liquid fuel is sent for blending into fuel products, such as gasoline, jet fuel, or diesel, and the water stream can be sent, for example, to the synthesis gas producing plant for steam generation.
    • 合成燃料由四段反应器系统中的合成气生产,具有单个循环回路,提供必要的热容量以缓和反应的高热量释放,并提供反应物和反应环境以有效地操作该过程。 第一阶段将一部分合成气转化为甲醇,第二阶段将甲醇转化为二甲醚,第三阶段将甲醇和二甲醚转化为燃料,第四阶段将高熔点组分二烯和其他低挥发性芳香族化合物 诸如三甲基苯和四甲基苯的组分转化为高辛烷值支链烷烃。 用于加氢处理的四阶段催化剂耐CO中毒。 在第四阶段之后,作为副产物产生水的反应通过高压分离器。 来自分离器的物流是液体燃料物流,水流和含有轻质烃气体和未反应的合成气的气体物流。 该气流的较大部分被循环到第一级的入口并与新鲜合成气流混合。 或者,新鲜的合成气流与第二阶段的产物混合。 来自分离器的气流的较小部分被送到烃回收和用于提供各种流的预热的燃料气。 液体燃料被输送用于混合成燃料产品,例如汽油,喷气燃料或柴油,并且水流例如可以被输送到合成气生产工厂以产生蒸汽。
    • 15. 发明申请
    • PROCESS FOR THE PRODUCTION OF DIMETHYL ETHER
    • 二甲醚生产工艺
    • WO2011019436A1
    • 2011-02-17
    • PCT/US2010/036510
    • 2010-05-28
    • CATALYTIC DISTILLATION TECHNOLOGIESLOESCHER, Mitchell, E.
    • LOESCHER, Mitchell, E.
    • C07C41/09C07C41/42C07C43/04B01J8/02
    • C07C41/34B01D3/009C07C29/151C07C41/09C07C41/42Y02P20/127C07C31/04C07C43/04C07C43/043
    • A process for the production of dimethyl ether from a methanol reactor effluent is disclosed. The process may include: contacting an aqueous extractant comprising water and an effluent from a methanol synthesis reactor comprising methanol and one or more of methane, water, carbon monoxide, carbon dioxide, hydrogen, and nitrogen. At least a portion of the methanol partitions into the aqueous extractant; recovering an extract fraction comprising the aqueous extractant and methanol. The extract fraction is fed to a catalytic distillation reactor system for concurrently: contacting the methanol with catalyst in a reaction zone thereby catalytically reacting at least a portion of the methanol to form dimethyl ether and water; and fractionating the resulting dimethyl ether and the water to recover a first overheads fraction comprising dimethyl ether and a first bottoms fraction comprising water.
    • 公开了一种从甲醇反应器流出物生产二甲醚的方法。 该方法可以包括:将包含水和来自甲醇合成反应器的流出物的含水萃取剂与包含甲烷和甲烷,水,一氧化碳,二氧化碳,氢气和氮气中的一种或多种的甲醇合成反应器接触。 甲醇的至少一部分分配到含水萃取剂中; 回收包含含水萃取剂和甲醇的提取物级分。 将提取物馏分进料到催化蒸馏反应器系统中以同时进行:使甲醇与反应区中的催化剂接触,从而使至少一部分甲醇催化反应形成二甲醚和水; 并分馏得到的二甲醚和水,以回收包含二甲醚的第一塔顶馏分和包含水的第一塔底馏分。