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    • 21. 发明申请
    • PROCESS FOR THE PRODUCTION OF HYDROGEN
    • 生产氢过程
    • WO2013131916A1
    • 2013-09-12
    • PCT/EP2013/054406
    • 2013-03-05
    • SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.SHELL OIL COMPANY
    • GUO, Chang JieSHU, Shu
    • C01B3/38C01B3/48C01B3/52C01B3/56C01B3/50C10G45/00
    • C01B3/384C01B3/48C01B3/501C01B3/52C01B3/56C01B2203/0233C01B2203/0283C01B2203/0405C01B2203/0415C01B2203/043C01B2203/0475C01B2203/065C01B2203/0811C01B2203/0822C01B2203/0827C01B2203/1235C01B2203/142C01B2203/146C01B2203/148C10G45/02C10G45/58C10G47/00C10G49/007C10K1/32C10K3/04Y02P20/128
    • The invention relates to process for the production of hydrogen, comprising • a) subjecting a feedstock comprising a gaseous hydrocarbon to an endothermic steam reforming reaction by contacting the feedstock, in a steam reforming unit (4) and in the presence of steam (7), to obtain a steam reforming effluent comprising carbon monoxide, hydrogen and hydrocarbon, and wherein heat needed for the endothermic reaction is provided by a furnace fueled by a fuel gas; • b) subjecting the steam reforming effluent to a water-gas-shift reaction (12) to obtain a water-gas-shift effluent comprising carbon dioxide, hydrogen and hydrocarbon; • c) removing carbon dioxide from the water-gas-shift effluent (15) to obtain a carbon-dioxide depleted water-gas-shift effluent (17); • d) subjecting the carbon-dioxide depleted water-gas-shift effluent to pressure swing adsorption (18) to obtain a high purity hydrogen stream (19) and a low purity hydrogen stream comprising hydrocarbon (20); • e) separating the low purity hydrogen stream in a hydrocarbon-rich gas stream and a hydrogen-rich gas streamn (22) by means of membrane separation (21); • f) supplying the hydrogen-rich gas stream obtained in step e) to the furnace (6) as part of the fuel gas; and • g) recycling the hydrocarbon-rich gas stream to the steam reforming unit.
    • 本发明涉及氢的生产方法,包括。 a)通过在蒸汽重整单元(4)和蒸汽(7)的存在下使原料接触,使包含气态烃的原料进行吸热蒸汽重整反应,以获得包含一氧化碳,氢气和 碳氢化合物,并且其中吸热反应所需的热量由燃料气体燃烧的炉提供; 。 b)使蒸汽重整流出物进行水煤气变换反应(12)以获得包含二氧化碳,氢气和烃的水煤气转移流出物; 。 c)从水煤气转移流出物(15)中除去二氧化碳,得到二氧化碳贫化水煤气流出物(17); 。 d)使二氧化碳贫化的水煤气变换废气经受变压吸附(18),以获得高纯度氢气流(19)和包含烃(20)的低纯度氢气流; 。 e)通过膜分离(21)分离富烃气流中的低纯度氢气流和富氢气流(22); 。 f)将作为燃料气体的一部分的步骤e)中获得的富氢气流供给到炉子(6) 和。 g)将富烃气流再循环到蒸汽重整单元。