Process for producing and using syngas and recovering methane enricher
gas therefrom
    1.
    发明授权
    Process for producing and using syngas and recovering methane enricher gas therefrom 失效
    用于生产和使用合成气并从其中回收富含甲烷的气体的方法

    公开(公告)号:US4678480A

    公开(公告)日:1987-07-07

    申请号:US790325

    申请日:1985-10-23

    IPC分类号: C10J3/54 C10J3/46 C22B5/12

    摘要: A process for producing a synthesis gas containing methane and using a reactor having a fuel containing carbon comprises directing gasification gases in a circulation system through a bed of fuel containing carbon to form a synthesis gas containing methane and carbon dioxide. Thereafter, the synthesis gas is cooled in a regenerator and subjected to the gas separation wherein the syngas is subjected to a gas cleansing by means of a pressure change absorption in a gas scrubber to remove most of the methane and carbon dioxide and its water content is increased. The separated gas is then heated and subsequently the portion is returned into the system together with the waste gases and fuel containing carbon. The process includes a 4-pole heater which includes the first heat exchange passage for the syngas which is cooled and a second heat exchange passage for the recirculation of the syngas and is further cooled and passed through a scrubber. The system includes a heater which is arranged after the 4-pole heater which operates the gas and then the gas is passed through a reduction reactor back through a heating element of the regenerator that initially cooled the gas. A portion of the gas is also used to drive a steam turbine and to direct the excess steam from the turbine into the initial reactor which has a fluidized bed of the carbon material such as coal.

    摘要翻译: 一种生产含甲烷的合成气和使用含有碳的燃料的反应器的方法包括将循环系统中的气化气体导引通过含碳燃料床形成含有甲烷和二氧化碳的合成气。 此后,将合成气在再生器中冷却并进行气体分离,其中合成气通过气体洗涤器中的压力变化吸收进行气体净化以除去大部分甲烷和二氧化碳,并且其含水量为 增加。 然后将分离的气体加热,随后将该部分与废气和含碳燃料一起返回到系统中。 该方法包括四极加热器,其包括用于合成气的第一热交换通道,其被冷却,第二热交换通道用于合成气的再循环,并进一步冷却并通过洗涤器。 该系统包括加热器,该加热器布置在操作气体的四极加热器之后,然后气体通过还原反应器返回通过初始冷却气体的再生器的加热元件。 气体的一部分也用于驱动蒸汽轮机并且将来自涡轮机的过量蒸汽引导到具有诸如煤的碳材料的流化床的初始反应器中。