Apparatus for the production of cleaned and cooled synthesis gas
    21.
    发明授权
    Apparatus for the production of cleaned and cooled synthesis gas 失效
    用于生产清洁和冷却合成气的设备

    公开(公告)号:US4328006A

    公开(公告)日:1982-05-04

    申请号:US168849

    申请日:1980-07-10

    摘要: An apparatus in which the hot raw synthesis gas stream leaving the reaction zone of a free flow partial oxidation gas generator at a temperature in the range of about 1800.degree. to 3000.degree. F. is passed through a first gas diversion and residue separation zone where the velocity of the gas stream is reduced and its direction is diverted into a side transfer line. Solid material and molten slag separate by gravity from the gas stream. The hot gas stream is then introduced into a second gas diversion and residue separation zone, which comprises a plurality of high temperature resistant, thermally insulated cyclones, where the direction and velocity is changed and additional residue is separated. About 0.5 to 20 vol. % of the hot gas stream may be passed through bottom outlets in said first and second gas diversion zones in order to prevent bridging. The hot gas stream from the second gas diversion zone is passed upwardly through a radiant cooler where additional solid matter is removed by gravity and the gas temperature is reduced to a temperature in the range of about 900.degree. to 1800.degree. F.

    摘要翻译: 将离开自由流动部分氧化气体发生器的反应区的热原料合成气流在约1800°至3000°F的温度范围内的装置通过第一气体分离和残余分离区, 气流的速度减小,其方向转向侧传输线。 固体材料和熔渣通过重力从气流中分离。 然后将热气流引入第二气体分离和残余分离区,其包括多个耐高温,绝热的旋风分离器,其中方向和速度改变并且附加的残余物被分离。 约0.5〜20体积 %的热气流可以通过所述第一和第二气体导流区中的底部出口,以防止桥接。 来自第二气体分流区的热气流向上通过辐射冷却器,其中通过重力除去附加的固体物质,并将气体温度降低至约900°至1800°F的温度。

    Production of cleaned and cooled synthesis gas
    22.
    发明授权
    Production of cleaned and cooled synthesis gas 失效
    生产清洁和冷却的合成气

    公开(公告)号:US4251228A

    公开(公告)日:1981-02-17

    申请号:US43918

    申请日:1979-05-30

    摘要: The hot raw synthesis gas stream leaving the reaction zone of a free flow partial oxidation gas generator at a temperature in the range of about 1800.degree. to 3000.degree. F. is passed through a first gas diversion and residue separation zone where the velocity of the gas stream is reduced and its direction is diverted into a side transfer line. Solid material and molten slag separate by gravity from the gas stream. The hot gas stream is then introduced into a second gas diversion and residue separation zone where additional residue is separated. About 0.5 to 20 vol. % of the hot gas stream may be passed through bottom outlets in said first and second gas diversion zones in order to prevent bridging. The hot gas stream from the second gas diversion zone is passed upwardly through a radiant cooler where additional solid matter is removed by gravity and the gas temperature is reduced to a temperature in the range of about 900.degree. to 1800.degree. F. In one embodiment, the second diversion and residue separation zone is a thermally insulated cyclone. By the subject process, 70 to 95 wt. % of the combustion residue is removed from the raw stream of synthesis gas, and the temperature of the gas stream is reduced below the maximum safe operating temperature for downstream devices used to recover energy from the hot gas stream, such as a conventional convection type gas cooler.

    摘要翻译: 离开自由流动部分氧化气体发生器的反应区的热原料合成气流在约1800°至3000°F的温度范围内通过第一气体分离和残留分离区,其中气体的速度 流减少,其方向转向侧传输线。 固体材料和熔渣通过重力从气流中分离。 然后将热气流引入第二气体分离和残余物分离区,其中附加残留物被分离。 约0.5〜20体积 %的热气流可以通过所述第一和第二气体导流区中的底部出口,以防止桥接。 来自第二气体导流区的热气流向上通过辐射冷却器,其中通过重力除去附加的固体物质,并将气体温度降低到约900°至1800°F范围内的温度。在一个实施方案中, 第二个转移和残留分离区是隔热旋风分离器。 通过本课题,70〜95wt。 从合成气的原始流中除去燃烧残余物的%,并且将气流的温度降低到用于从热气流中回收能量的下游装置的最大安全工作温度,例如常规对流型气体 冷却器

    Partial oxidation of low rank coal
    23.
    发明授权
    Partial oxidation of low rank coal 失效
    低等级煤的部分氧化

    公开(公告)号:US5324336A

    公开(公告)日:1994-06-28

    申请号:US941006

    申请日:1992-09-04

    申请人: Edward T. Child

    发明人: Edward T. Child

    IPC分类号: C10J3/46 C10L3/00

    摘要: Abundant low cost low rank coal may now be gasified by partial oxidation or burned in a furnace or boiler. About 30 to 45 parts by wt. of comminuted low rank coal is mixed and reacted in the reaction zone of a partial oxidation gas generator with a free-oxygen containing gas and (a) about 1 to 3 parts by wt. of a residual fuel oil, and (b) about 70 to 55 parts by wt. of water. The hot effluent stream of synthesis gas, reducing gas or fuel gas from the partial oxidation gasifier may be purified to provide a gas stream which will not pollute the environment.

    摘要翻译: 丰富的低成本低等级煤炭现在可以通过部分氧化气化或在炉子或锅炉中燃烧。 约30〜45重量份 粉碎的低等级煤在部分氧化气体发生器与含游离氧气体的反应区中混合并反应,(a)约1〜3重量份。 的残余燃料油,和(b)约70至55重量份。 的水。 合成气的热流出物,来自部分氧化气化器的还原气体或燃料气体可以被纯化以提供不会污染环境的气流。

    Process for producing dry, sulfur-free, CH.sub.4 -enriched synthesis or
fuel gas
    24.
    发明授权
    Process for producing dry, sulfur-free, CH.sub.4 -enriched synthesis or fuel gas 失效
    生产干,无硫,富含CH4的合成或燃气的方法

    公开(公告)号:US5232467A

    公开(公告)日:1993-08-03

    申请号:US900388

    申请日:1992-06-18

    CPC分类号: C10K1/04 C10K1/14

    摘要: Cryogenic liquefied natural gas (LNG) is used as a source of refrigeration and methane in the production of dry sulfur-free, methane-enriched synthesis gas or fuel gas. Raw syngas is indirectly and directly contacted with cryogenic liquefied natural gas (LNG) and cooled thereby below the dew point. Water is thereby condensed out and separated from the process gas stream. Further, the liquid LNG vaporizes and increases the methane content of the dewatered synthesis gas. Cold liquid absorbent solvent contacts the dry CH.sub.4 -enriched synthesis gas in an absorption column and absorbs the acid gases e.g. H.sub.2 S and COS and optionally H.sub.2 S+COS+CO.sub.2. In a preferred embodiment, the rich solvent absorbent is regenerated in a stripping column and the released acid gases are sent to a Claus unit for the production of elemental sulfur. In a second embodiment, the regenerated lean liquid absorbent solvent may be mixed with the dry, purified synthesis gas leaving from the top of the absorption tower. This mixture is then directly and optionally indirectly contacted with additional cryogenic liquid LNG. The CH.sub.4 content of the synthesis or fuel gas is thereby increased to a value in the range of about 10 to 80 mole %. By means of a decanter, dry, sulfur-free methane-enriched syngas product is separated from liquid absorbent solvent. The liquid absorbent solvent is then recycled to the absorption column.

    Production of hydrogen-rich gas
    27.
    发明授权
    Production of hydrogen-rich gas 失效
    生产富氢气体

    公开(公告)号:US4021366A

    公开(公告)日:1977-05-03

    申请号:US592132

    申请日:1975-06-30

    摘要: This is a continuous process for producing hydrogen-rich gas. Successive beds of water-gas shift conversion catalysts of differing properties are employed in a shift converter to achieve an economical balance between catalyst activity and catalyst life. For example, a comparatively small fixed bed of highly active low temperature water-gas shift conversion catalyst may be loaded on top of a fixed bed of rugged low cost moderately active high temperature water-gas shift catalyst. A CO-rich gas and H.sub.2 O are introduced into the bed of low temperature shift catalyst where reaction takes place. The partially reacted gas stream leaves the bed of low temperature shift catalyst and is introduced into the bed of high temperature catalyst at a suitable temperature for triggering off therein the water gas shift reaction without the additon of heat from an external source. By this means it may be possible to produce hydrogen-rich gas with high conversions of CO to CO.sub.2, and to increase catalyst life at a moderate cost. It may also be possible to eliminate a feed heater or feed-product heat exchanger.

    摘要翻译: 这是生产富氢气体的连续方法。 在换档转换器中采用了不同性能的水煤气变换催化剂的连续床,以实现催化剂活性和催化剂寿命之间的经济平衡。 例如,可以将高活性低温水煤气变换催化剂的比较小的固定床装载在坚固的低成本中等活性高温水煤气变换催化剂的固定床的顶部。 将富含CO的气体和H 2 O引入到发生反应的低温变换催化剂床中。 部分反应的气流离开低温变换催化剂床,并在合适的温度下引入高温催化剂床中,以在其中引发水煤气变换反应而不加入外部来源的热量。 通过这种方式,可以产生具有高CO转化为CO 2的富氢气体,并以适中的成本增加催化剂寿命。 还可以消除进料加热器或进料产品热交换器。

    Partial oxidation of low rank coal
    29.
    发明授权
    Partial oxidation of low rank coal 失效
    低等级煤的部分氧化

    公开(公告)号:US5423894A

    公开(公告)日:1995-06-13

    申请号:US56089

    申请日:1993-05-03

    IPC分类号: C10J3/46

    摘要: Pumpable aqueous slurries of low rank coal e.g. subbituminous coal and lignite having a comparatively high solids content are made by keeping the particles of coal in contact with a non-oxidizing gas e.g. nitrogen and/or CO.sub.2 thereby maintaining a hydrophobic surface on the particles of coal while they are ground and dried, contacted with an aqueous slurry of liquid hydrocarbonaceous fuel which is absorbed and which coats the particles of coal, and then dried. The dried coated particles of low rank coal are mixed with water to produce a pumpable slurry having a solids content in the range of about 50 to 60 wt. %. In one embodiment, at least a portion of the water needed to produce said pumpable slurry is derived by cooling and condensing out water from the non-oxidizing gas that was used to dry the low rank coal. In still another embodiment, the dewatered non-oxidizing gas is introduced into the combustor of a gas turbine to moderate the temperature and thereby reduce the formation of NO.sub.x gases.

    摘要翻译: 可排出的低级煤的水性浆料 具有较高固体含量的次烟煤和褐煤通过保持煤的颗粒与非氧化性气体接触来制备。 氮气和/或二氧化碳,从而在研磨和干燥煤颗粒的同时保持疏水性表面,与被吸收的液体烃类燃料的水性浆液接触,并涂覆煤颗粒,然后干燥。 将低等级煤的干燥的涂覆颗粒与水混合以产生固体含量在约50至60重量%范围内的可泵送浆料。 %。 在一个实施方案中,产生所述可泵送浆料所需的至少一部分水是通过冷却和冷凝来自用于干燥低等级煤的非氧化性气体的水而得到的。 在另一个实施方案中,将脱水的非氧化气体引入燃气轮机的燃烧器中以调节温度,从而减少NOx气体的形成。