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    • 61. 发明申请
    • Method of maintaining a fuel Wobbe index in an IGCC installation
    • 在IGCC安装中维持燃料Wobbe指数的方法
    • US20070082306A1
    • 2007-04-12
    • US11248387
    • 2005-10-12
    • Raymond DrnevichTroy Raybold
    • Raymond DrnevichTroy Raybold
    • F23N1/02
    • F23K5/002C10J3/00C10J3/482C10J3/723C10J2300/0903C10J2300/165C10J2300/1678C10J2300/1687C10J2300/1884C10J2300/1892F02C3/28Y02E20/16Y02E20/18
    • A method of reducing a modified Wobbe index of a fuel stream fed to diffusion combustors of a gas turbine that is used in connection with an IGCC installation in which a nitrogen stream is fed into the head ends of the combustor of NOx control and the modified Wobbe index of the fuel stream has been increased in an amount that is greater than at least about 10 percent of a design Wobbe index for the fuel to be fed to the gas turbine. The reason for the increase is the conversion of the carbon monoxide within the fuel stream to hydrogen and carbon dioxide by a water gas shift reaction and subsequent removal of the carbon dioxide. The nitrogen stream is maintained at the same level both with and without conversion and subsequent removal of carbon atoms. The nitrogen stream is divided to subsidiary streams that are respectively fed into the head end of the combustors and that are mixed with a fuel to lower the modified Wobbe index to acceptable levels for the gas turbine.
    • 一种减少供给到燃气轮机的扩散燃烧器的燃料流的改进的沃伯指数的方法,该燃料流与IGCC装置结合使用,其中氮气流被供给到NOx控制的燃烧器的头端和修改的沃伯 燃料流的指数已经增加,其量大于要供给燃气轮机的燃料的设计沃泊指数的至少约10%。 增加的原因是通过水煤气变换反应并随后除去二氧化碳将燃料流中的一氧化碳转化为氢气和二氧化碳。 氮气流保持在相同的水平,具有和不具有转化和随后的碳原子的除去。 氮气流被分配到分别进入燃烧器的头端并与燃料混合以将修改的沃泊指数降低到燃气轮机的可接受水平的辅助气流。
    • 63. 发明授权
    • Biomass gasifier apparatus and method
    • 生物质气化炉装置及方法
    • US06972114B2
    • 2005-12-06
    • US09784261
    • 2001-02-16
    • LeRoy B. PopeMichael L. Murphy
    • LeRoy B. PopeMichael L. Murphy
    • C10J3/54C10J3/56C10J3/84C10J3/86C10L5/00
    • C10J3/482C10J3/54C10J3/56C10J3/84C10J3/86C10J2200/158C10J2300/0903C10J2300/0916C10J2300/0993C10J2300/1253C10J2300/1628C10J2300/1807C10J2300/1861
    • A biomass gasifier apparatus (10) produces low BTU gas from biomass, while removing the char and ash in an efficient manner. A fluidized bed gasifier cell (20) receives biomass fuel from a fuel input system (280). A preferred fluidized bed gasifier cell includes a vertically oriented cylindrical enclosure. A layer of bed material (40), typically having a consistency similar to sand, is carried at the base of the enclosure. A plenum (60) supplies hot compressed gas to a plurality of parallel manifolds (80), each of which support a number of nozzles (100). Gas released by the nozzles fluidizes the bed, catalyzing the process of gasification of the biomass, while a low oxygen environment prevents excessive combustion. A bed change-out system (120) removes waste introduced into the fluidized bed gasifier with the biomass. Gas discharged from an upper portion of the fluidized bed gasifier includes low BTU gas that is the desired output of the system. In a preferred application, this gas is injected into a cyclone (140). An upper portion of the cyclone discharges low BTU gas at high-temperature, for use in a boiler or other application, often along with a fossil fuel.
    • 生物质气化器装置(10)从生物质产生低BTU气体,同时以有效的方式去除焦炭和灰分。 流化床气化器电池(20)从燃料输入系统(280)接收生物质燃料。 优选的流化床气化器电池包括垂直定向的圆柱形外壳。 通常具有类似于沙子的稠度的一层床料(40)在外壳的底部被承载。 增压室(60)将热压缩气体供应到多个平行歧管(80),每个歧管歧管(80)支撑多个喷嘴(100)。 由喷嘴释放的气体使床流动,催化生物质的气化过程,同时低氧环境防止过度燃烧。 床切换系统(120)用生物质去除引入流化床气化器的废物。 从流化床气化器的上部排出的气体包括作为系统期望输出的低BTU气体。 在优选的应用中,将该气体注入到旋风分离器(140)中。 旋风分离器的上部在高温下排出低BTU气体,用于锅炉或其他应用,通常与化石燃料一起使用。