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    • 1. 发明申请
    • PROCESS TO PREPARE A HYDROGEN RICH GAS MIXTURE
    • 制备氢气混合物的方法
    • WO2011000792A2
    • 2011-01-06
    • PCT/EP2010/059111
    • 2010-06-28
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.VAN DEN BERG, RobertFLEYS, Matthieu Simon HenriGEUZEBROEK, Frank HaikoPRINS, Mark Jan
    • VAN DEN BERG, RobertFLEYS, Matthieu Simon HenriGEUZEBROEK, Frank HaikoPRINS, Mark Jan
    • C10K3/04C01B3/16C10J3/48
    • C01B3/32C01B3/16C01B3/52C01B2203/0294C01B2203/0415C01B2203/0465C01B2203/0475C01B2203/0485C01B2203/1041C01B2203/1052C01B2203/1076C01B2203/84C10J3/06C10J3/466C10J2300/093C10J2300/0956C10J2300/0959C10K3/04Y02E20/18
    • The invention is directed to a process to prepare a hydrogen rich gas mixture from a solid sulphur-and halogen-containing carbonaceous feedstock. The process involves the following steps. Step (a): gasification of the solid carbonaceous feedstock with an oxygen- containing gas to obtain a gas mixture comprising halogen compounds, sulphur compounds, hydrogen and at least 50vol.% carbon monoxide, on a dry basis. Step (b): contacting the gas mixture with a quench gas or quench liquid to reduce the temperature of the gas mixture to below 900°C. Step (c) contacting the gas mixture with water having a temperature of between 150 and 250°C to obtain a gas mixture comprising between 50 and 1000ppm halogen and having a steam to carbon monoxide molar ratio of between 0.2:1 and 0.9:1. Step (d): subjecting the gas mixture obtained in step (c) to a water gas shift reaction wherein part or all of the carbon monoxide is converted with the steam to hydrogen and carbon dioxide in the presence of a catalyst as present in one fixed bed reactor or in a series of more than one fixed bed reactors and wherein the temperature of the gas mixture as it enters the reactor or reactors is between 190 and 230°C. Step (e): carbon dioxide and sulphur compounds are separated from the shifted gas mixture obtained in step (d) by contacting the shifted gas mixture with a solvent comprising dialkyl ethers of polyethylene glycol.
    • 本发明涉及从固体含硫和含卤素的碳质原料制备富氢气体混合物的方法。 该过程涉及以下步骤。 步骤(a):用含氧气体气化固体碳质原料,以干燥的方式获得包含卤素化合物,硫化合物,氢气和至少50体积%一氧化碳的气体混合物。 步骤(b):使气体混合物与骤冷气体或骤冷液体接触,以将气体混合物的温度降至900℃以下。 步骤(c)使气体混合物与温度为150-250℃的水接触,得到含有50-1000ppm卤素且蒸汽与一氧化碳摩尔比在0.2:1至0.9:1之间的气体混合物。 步骤(d):将步骤(c)中获得的气体混合物进行水煤气变换反应,其中部分或全部一氧化碳在蒸汽存在下以蒸汽转化为氢气和二氧化碳,存在于一个固定的 床反应器或一系列多于一个的固定床反应器,并且其中气体混合物进入反应器或反应器时的温度为190-230℃。 步骤(e):通过使转移的气体混合物与包含聚乙二醇的二烷基醚的溶剂接触,将二氧化碳和硫化合物与步骤(d)中获得的转移气体混合物分离。