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    • 18. 发明申请
    • Processes for Making Synthesis Gas and Syngas-Derived Products
    • 制备合成气和合成气产品的工艺
    • US20090170968A1
    • 2009-07-02
    • US12342596
    • 2008-12-23
    • Nicholas Charles NahasEarl T. Robinson
    • Nicholas Charles NahasEarl T. Robinson
    • C07C1/04C01B3/34F01K13/00
    • C10J3/00C10J3/463C10J2300/093C10J2300/0943C10J2300/0973C10J2300/0986C10J2300/16C10J2300/1618C10J2300/1671C10J2300/1675C10J2300/1687C10J2300/1823C10J2300/1853C10J2300/1884C10K1/003C10K3/006C10K3/02C10L3/08C10L3/102
    • The present invention provides processes for making synthesis gas and processes for making syngas-derived products. For example, one aspect of the present invention provides a process for making a synthesis gas stream comprising hydrogen and carbon monoxide, the process comprising (a) providing a carbonaceous feedstock; (b) reacting the carbonaceous feedstock in a gasification reactor in the presence of steam and a gasification catalyst under suitable temperature and pressure to form a raw product gas stream comprising a plurality of gases comprising methane, hydrogen and carbon monoxide; (c) removing steam from and sweetening the raw product gas stream to form a sweetened gas stream; (d) separating and adding steam to the sweetened gas stream to form a first reformer input gas stream having a first steam/methane ratio; and a second reformer input stream having a second steam/methane ratio, in which the first steam/methane ratio is smaller than the second steam/methane ratio; (e) reforming the second reformer input stream to form a recycle gas stream comprising steam, carbon monoxide and hydrogen; (f) introducing the recycle gas stream to the gasification reactor; and (g) reforming the first reformer input stream to form the synthesis gas stream.
    • 本发明提供了制备合成气的方法和制备合成气衍生产物的方法。 例如,本发明的一个方面提供了一种制备包含氢气和一氧化碳的合成气流的方法,该方法包括(a)提供碳质原料; (b)在合适的温度和压力下,在蒸汽和气化催化剂的存在下在气化反应器中使碳质原料反应,形成包含甲烷,氢气和一氧化碳的多种气体的原始产物气流; (c)从原料气流中除去蒸汽并使其变质,形成增甜的气流; (d)将蒸汽分离并加入到所述增甜气流中以形成具有第一蒸汽/甲烷比的第一重整器输入气流; 以及第二蒸汽/甲烷比小于第二蒸汽/甲烷比的第二蒸汽/甲烷比的第二重整器输入流; (e)重整所述第二重整器输入流以形成包含蒸汽,一氧化碳和氢气的循环气流; (f)将再循环气流引入气化反应器; 和(g)重整第一重整器输入流以形成合成气流。