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    • 1. 发明授权
    • Process and apparatus for purifying raw coal gas
    • 原煤气净化工艺及装置
    • US4233275A
    • 1980-11-11
    • US965512
    • 1978-12-01
    • Shoichi KimuraToshihiko TakahashiZensuke Tamura
    • Shoichi KimuraToshihiko TakahashiZensuke Tamura
    • C10K1/04C10K1/20C10K1/34B01D53/34
    • C10K1/34C10K1/04C10K1/20
    • A high temperature, high pressure raw coal gas containing hydrogen sulfide, ammonia, and tarry matter, is purified by contacting the raw coal gas with solid particles thereby cooling the raw coal gas to a temperature suitable for hydrogen sulfide removal and at the same time depositing the tarry matter onto the solid particles by condensation to recover the tarry matter from the raw coal gas, removing the hydrogen sulfide from the cooled and substantially tar-free coal gas, expanding the raw coal gas to a pressure suitable for ammonia decomposition, heating the expanded raw coal gas to a temperature suitable for ammonia decomposition by heat obtained by combusting the recovered tarry matter on the solid particles, thereby regenerating the solid particles for reuse, and then decomposing ammonia in the raw coal gas, thereby removing ammonia therefrom. A process for efficiently purifying raw coal gas by removing tarry matter, hydrogen sulfide and ammonia, including effectively utilizing the recovered tarry matter to produce heat while also effectively utilizing the energy obtained by expanding the coal gas through a pressure-reducing means such as an expansion turbine.
    • 通过使原煤气与固体颗粒接触,将硫化氢,氨和焦油状物的高温,高压原煤气体纯化,从而将原煤气体冷却至适于除去硫化氢的温度,同时沉积 通过冷凝将固体颗粒的焦油状物从原煤气中回收焦油物质,从冷却和基本上无焦油的煤气中除去硫化氢,将原料气扩展至适于氨分解的压力,加热 通过将固体颗粒上回收的焦油物质燃烧而获得的热量将原煤气体膨胀至适于氨分解的温度,从而再生固体颗粒再利用,然后分解原煤气中的氨,从而从其中除去氨。 一种通过去除焦油物质,硫化氢和氨来有效净化原煤的方法,包括有效地利用回收的焦油物质产生热量,同时还有效地利用通过诸如膨胀的减压装置膨胀煤气而获得的能量 涡轮。
    • 3. 发明授权
    • Process for removal and recovery of sulfide from coal gas
    • 从煤气中除去和回收硫化物的工艺
    • US4155990A
    • 1979-05-22
    • US866866
    • 1978-01-04
    • Shoichi KimuraToshihiko Takahashi
    • Shoichi KimuraToshihiko Takahashi
    • C01B17/04C01B17/02C10K1/20
    • C01B17/0404Y02P20/584
    • Hydrogen sulfide is removed from coal gas for gas turbine power generation and recovered as elemental sulfur by contacting a coal gas formed by gasification of coal with an iron oxide catalyst, thereby removing hydrogen sulfide from the coal gas and obtaining a desulfurized coal gas; regenerating the iron oxide catalyst of lowered desulfurization activity, thereby obtaining a regeneration off-gas containing sulfur dioxide; converting a portion of said desulfurized coal gas to reducing gas containing hydrogen; reacting the hydrogen of the resulting reducing gas with the sulfur dioxide in a portion of said regeneration off-gas, thereby producing hydrogen sulfide; reacting the resulting hydrogen sulfide with the sulfur dioxide in the remaining portion of the regeneration off-gas in the presence of a catalyst, thereby producing a gas containing elemental sulfur, and recovering the elemental sulfur from the gas.
    • 将硫化氢从燃气轮机发电煤气中除去,并将煤气化产生的煤气与氧化铁催化剂接触,从而从煤气中除去硫化氢,得到脱硫煤气,作为元素硫回收。 再生氧化铁催化剂降低脱硫活性,从而获得含二氧化硫的再生废气; 将一部分所述脱硫煤气转化为含氢气的还原气体; 在所述再生废气的一部分中使得到的还原气体的氢与二氧化硫反应,从而产生硫化氢; 在催化剂存在下,使得到的硫化氢与再生废气的剩余部分中的二氧化硫反应,从而产生含有元素硫的气体,并从气体回收元素硫。
    • 4. 发明授权
    • Process for removing harmful components from gas
    • 从气体中除去有害成分的方法
    • US4273748A
    • 1981-06-16
    • US44583
    • 1979-06-01
    • Toshihiko TakahashiMorihisa MarukoShoichi Kimura
    • Toshihiko TakahashiMorihisa MarukoShoichi Kimura
    • B01D53/00B01D53/52B01D53/58C10K1/20B01D53/34
    • C10K1/20B01D53/00B01D53/52B01D53/58
    • A reducing gas, such as a synthetic fuel gas, produced by gasification of a fossil fuel, containing ammonia or both ammonia and hydrogen sulfide, is purified by passing the reducing gas at first, through a first removing agent of iron or nickel system when the hydrogen sulfide is contained, and then through a second removing agent of iron or nickel system, both at elevated temperatures. For example, when the reducing gas contains both ammonia and hydrogen sulfide, the gas is passed through the first removing agent at a temperature of 450.degree.-700.degree. C. to remove substantially all of the hydrogen sulfide and then is passed through the second removing agent at a temperature of greater than 700.degree. C., preferably up to 900.degree. C., to remove substantially all of the ammonia contained in the gas. Not only a remarkable effect upon prevention of environmental pollution but also a great improvement of energy efficiency, as compared with the conventional process, can be obtained.
    • 通过使含有氨或氨和硫化氢的化石燃料气化生成的还原气体,例如合成燃料气体,通过首先通过还原气体通过铁或镍系统的第一除去剂来净化,当 包含硫化氢,然后在高温下通过铁或镍系统的第二除去剂。 例如,当还原气体含有氨和硫化氢时,气体在450〜-78℃的温度下通过第一除去剂,以除去基本上所有的硫化氢,然后通过第二次除去 试剂在大于700℃的温度下,优选高达900℃,以除去气体中所含的基本上所有的氨。 与常规方法相比,不仅对防止环境污染有显着的效果,而且能够提高能源效率。