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    • 55. 发明授权
    • Process of conversion of hydrogen sulfide into elemental sulfur on solid oxide catalysts
    • 在固体氧化物催化剂上将硫化氢转化为元素硫的方法
    • US08486365B2
    • 2013-07-16
    • US13436959
    • 2012-04-01
    • Tofik Gasan Alkhazov
    • Tofik Gasan Alkhazov
    • C01B17/04
    • C01B17/0426C01B17/0404C01B17/0408C01B17/0491
    • To minimize the inhibitory effect of sulfur on the oxidation of hydrogen sulfide with oxygen in a gas stream on the solid catalysts, first, the elemental sulfur content in the gas stream is reduced to less than 3.0 mg/l, preferably 0.3 mg/l, and second, the temperature in the oxidation reactor is maintained so that the relative vapor pressure of sulfur in it remains less than 0.25, preferably less than 0.1. The removal of sulfur from the gas stream by washing it with water or aqueous solution decreases the ignition temperature of the process to 155-160° C. Because of this the initial concentration of H2S might be elevate up to about 2% for a regular adiabatic reactor and to 10% by volume for a reactor with a heat-redistributing system.
    • 为了最小化硫对固体催化剂上的气流中的硫的硫化氢氧化的抑制作用,首先,将气流中的元素硫含量降低至小于3.0mg / l,优选0.3mg / l, 其次,维持氧化反应器中的温度,使其中的硫的相对蒸汽压保持小于0.25,优选小于0.1。 通过用水或水溶液洗涤从气流中除去硫将将该过程的点火温度降低至155-160℃。因此,对于常规绝热,H 2 S的初始浓度可升高至约2% 反应器和具有热重新分配系统的反应器的10体积%。
    • 57. 发明授权
    • Treatment of gases
    • 处理气体
    • US5486345A
    • 1996-01-23
    • US293410
    • 1994-08-19
    • Richard W. Watson
    • Richard W. Watson
    • B01D53/52B01D53/75C01B17/04B01D53/50
    • B01D53/75B01D53/52C01B17/0426
    • An improved oxygen-enhanced Claus process for the recovery of sulphur from an acid gas comprising hydrogen sulphide as a furnace in which a part of the hydrogen sulphide content of the acid gas is burned to form sulphur dioxide. The sulphur dioxide then reacts with residual hydrogen sulphide to form sulphur vapor which is condensed out of the resulting gas mixture. One part of the residual gas mixture is then subjected to catalytic stages to bring the reaction between the hydrogen sulphide and sulphur dioxide close to completion. The improvement resides in sending a second part of the gas mixture to an incinerator to convert all its hydrogen sulphide content to sulphur dioxide. After removal of water, the sulphur dioxide is returned to the furnace.
    • 用于从包含硫化氢的酸性气体中回收硫的改进的氧增强Claus方法,其中酸性气体的一部分硫化氢含量被燃烧以形成二氧化硫。 然后二氧化硫与残留的硫化氢反应以形成从所得气体混合物中冷凝的硫蒸气。 然后将一部分残余气体混合物进行催化阶段以使硫化氢和二氧化硫之间的反应接近完成。 改进在于将气体混合物的第二部分送入焚化炉以将其所有硫化氢含量转化为二氧化硫。 除去水后,二氧化硫返回炉中。