Synthesis gas from slurries of solid carbonaceous fuels
    31.
    发明授权
    Synthesis gas from slurries of solid carbonaceous fuels 失效
    来自固体碳质燃料浆料的合成气

    公开(公告)号:US4436531A

    公开(公告)日:1984-03-13

    申请号:US412437

    申请日:1982-08-27

    Abstract: Synthesis gas, fuel gas, or reducing gas is produced by the noncatalytic partial oxidation of a slurry of ash-containing solid carbonaceous fuel in a liquid carrier with a free-oxygen containing gas in the free-flow reaction zone of a refractory lined gas generator at an autogenous temperature in the range of about 2350.degree. F. to 2900.degree. F. so that about 75 to 95 weight percent of the carbon in the fuel feed to the reaction zone is converted into carbon oxides. The hot effluent gas stream from the reaction zone containing entrained particulate carbon, unconverted solid carbonaceous fuel, and molten slag is passed through a free-flow radiant cooler where it is contacted by and provides the heat to vaporize an aqueous solution of catalyst consisting of alkali metal and/or alkaline earth metal compound in water. In the presence of the catalyst, H.sub.2 O and at least a portion of the particulate carbon and the carbon in the unconverted solid carbonaceous fuel are reacted together at a controlled temperature to produce additional H.sub.2 and CO.sub.x. The hot effluent gas stream enters the radiant cooler at a temperature in the range of about 2800.degree. F.-2300.degree. F. and leaves at a temperature in the range of about 1350.degree. F.-1600.degree. F. Further, the molten slag in the effluent gas stream may be fluxed with the alkali metal and/or alkaline earth metal compound to facilitate separation of the slag from the effluent gas stream.

    Abstract translation: 合成气体,燃料气体或还原气体是通过在耐火衬里气体发生器的自由流动反应区中的具有含游离氧气体的液体载体中的含灰分固体碳质燃料的浆料的非催化部分氧化产生的 在约2350°F至2900°F范围内的自生温度下,使得进入反应区域的燃料中约75至95wt%的碳转化为碳氧化物。 来自含有夹带的颗粒碳,未转化的固体碳质燃料和熔渣的反应区的热废气流通过自由流辐射冷却器,在其中与其接触并提供热量以蒸发由碱组成的催化剂水溶液 金属和/或碱土金属化合物在水中。 在催化剂的存在下,H 2 O和未转化的固体碳质燃料中的至少一部分颗粒碳和碳在受控的温度下一起反应以产生额外的H 2和CO x。 热废气流在约2800°F-2300°F的温度范围内进入辐射冷却器,并在约1350°F-1600°F范围内离开。此外,熔渣 在废气流中可以用碱金属和/或碱土金属化合物进行助熔,以便于从流出气流中分离炉渣。

    Method for the gasification and preparation of a water-carbon slurry
    32.
    发明授权
    Method for the gasification and preparation of a water-carbon slurry 失效
    水煤浆的气化和制备方法

    公开(公告)号:US4424065A

    公开(公告)日:1984-01-03

    申请号:US302047

    申请日:1981-09-14

    CPC classification number: B03B5/48 B03B9/005 Y10S48/07

    Abstract: A method of particulate-carbon recovery from the product gas in a coal gasification process of the type using water-carbon slurry combusted with oxygen in a reactor uses water scrubbing for the product gas to obtain particulate carbon together with ash. Certain ash content is trapped in carbon particles which have a tendency of lumping together. The carbon and ash fraction is treated with liquid hydrocarbon for carbon particle wetting and facilitating separation of ash. The recovered carbon is ground to break down bigger carbon particles and sent through a wet-particle separator; carbon particles which pass a predetermined mesh size, e.g., approximately 63 micron mesh, are sent back to the reactor for mixing with the water-carbon slurry inlet for further combustion. The bigger fractions of carbon are either ground down to size again, or diverted for other uses. Recycling carbon particles which pass a 63 micron mesh and are almost devoid of ash improves the carbon utilization and significantly reduces total ash formed. The abrasion damage on components because of ash is also reduced.

    Abstract translation: 使用在反应器中用氧气燃烧的水 - 碳浆料的煤气化过程中的产物气体中的产物气体的颗粒碳回收方法使用水洗涤产物气体以获得颗粒碳和灰分。 某些灰分被捕获在具有凝聚在一起的趋势的碳颗粒中。 用碳氢化合物处理碳和灰分,用于碳颗粒润湿并促进灰分离。 回收的碳被研磨以分解较大的碳颗粒并通过湿颗粒分离器; 通过预定的筛网尺寸的碳颗粒,例如约63微米的筛网被送回反应器,以与水 - 碳浆料入口混合以进一步燃烧。 碳的较大部分要么再次磨平,要么转向其他用途。 通过63微米网并且几乎没有灰分的回收碳颗粒改善了碳的利用,并显着降低了形成的总灰分。 由于灰分对组分的磨损损伤也减少了。

    Partial oxidation process
    33.
    发明授权
    Partial oxidation process 失效
    部分氧化工艺

    公开(公告)号:US4400180A

    公开(公告)日:1983-08-23

    申请号:US272419

    申请日:1981-06-10

    Abstract: A partial oxidation process and control system for continuously producing synthesis gas, fuel gas or reducing gas in which one process fuel is replaced by a different fuel without shutting down or depressurizing the gas generator. This multifuel process is not tied to one particular fuel and reacts slurries of solid carbonaceous fuel and/or liquid or gaseous hydrocarbonaceous fuels. Suitable burners for introducing the feedstreams into the gas generator comprise a central conduit means radially spaced from a concentric coaxial outer conduit having a downstream exit nozzle, and providing a coaxial annular passage means therebetween. The central conduit means may be retracted upstream from the burner face a distance of about 0 to 12 and preferably 3 to 10 times the minimum diameter of the central exit orifice. A premix zone is preferably provided comprising one or more, say 2 to 5 coaxial chambers in series where substantial mixing of the reactant streams and optionally volatilization of the slurry medium takes place. A control system is provided for switching the type of reactant fuel stream flowing through either the central conduit means or the annular passage means of the burner and adjusting the flow rates of the reactant stream of free-oxygen containing gas.

    Abstract translation: 用于连续生产合成气,燃料气体或还原气体的部分氧化过程和控制系统,其中一个工艺燃料被不同的燃料代替,而不关闭或减压气体发生器。 这种多种方法不与一种特定的燃料相关联,并且反应固体碳质燃料和/或液体或气态烃类燃料的浆料。 用于将进料流引入气体发生器的合适的燃烧器包括与具有下游出口喷嘴的同心同轴外管径向间隔开的中心管道装置,并在其间提供同轴的环形通道装置。 中心导管装置可以从燃烧器表面的上游缩回到中心出口孔的最小直径的约0至12的距离,优选地为3至10倍。 优选地提供包含一个或多个,例如2至5个同轴室的预混合区,其中基本上混合反应物流并任选地使浆料介质挥发。 提供了一种控制系统,用于切换流过燃烧器的中心管道装置或环形通道装置的反应物燃料流的类型并调节含游离氧气体的反应物流的流速。

    Process for the partial oxidation of slurries of solid carbonaceous fuel
    34.
    发明授权
    Process for the partial oxidation of slurries of solid carbonaceous fuel 失效
    固体碳质燃料浆的部分氧化工艺

    公开(公告)号:US4386941A

    公开(公告)日:1983-06-07

    申请号:US362683

    申请日:1982-03-29

    Abstract: A process for the partial oxidation of pumpable slurries of solid carbonaceous fuels in which the pumpable slurry of solid carbonaceous fuel in a liquid carrier is passed in liquid phase through one passage of a burner comprising a retracted central coaxial conduit, an outer coaxial conduit with a converging orifice at the downstream tip of the burner and, optionally, an intermediate coaxial conduit. The downstream tips of the central conduit and the intermediate conduit, if any, are retracted upstream from the burner face a distance of respectively two or more say 3 to 10 for the central conduit, and about 0 to 12 say 1 to 5 for the intermediate conduit times the minimum diameter of the converging orifice of the outer conduit at the burner tip. A pre-mix zone is thereby provided comprising one or more, say 2 to 5 coaxial pre-mix chambers in series. The free-oxygen containing stream is passed through a separate passage of the burner into the pre-mix zone, in which mixing takes place with the slurry of solid carbonaceous fuel and liquid carrier. From 0 to 100, say about 2 to 80, volume % of the liquid carrier may be vaporized in the pre-mix zone. The multiphase mixture of reactants is then discharged into the reaction zone of the free-flow partial oxidation gas generator by way of the converging orifice of the outer conduit at the burner tip. Synthesis gas, fuel gas, or reducing gas is thereby produced.

    Abstract translation: 一种固体碳质燃料的可泵送浆料部分氧化的方法,其中在液体载体中固体碳质燃料的可泵送淤浆通过燃烧器的一个通道通过燃烧器,该燃烧器包括缩回的中心同轴导管, 在燃烧器的下游尖端处的会聚孔口,以及可选的中间同轴导管。 中心导管和中间导管的下游尖端(如果有的话)从燃烧器面的上游缩回,对于中心管道分别为两个或更多的距离,例如3至10,而对于中间管道,约0至12表示1至5 导管乘以燃烧器尖端处的外导管的会聚孔的最小直径。 因此,提供包括一个或多个,例如串联的2至5个同轴预混合室的预混合区。 将含游离氧的料流通过燃烧器的单独通道进入预混合区,其中与固体碳质燃料和液体载体的浆料进行混合。 从0到100,约2至80,液体载体的体积%可能在预混合区中汽化。 然后将反应物的多相混合物通过燃烧器末端处的外导管的会聚孔排出到自由流部分氧化气体发生器的反应区中。 由此制造合成气体,燃料气体或还原性气体。

    Burner for the partial oxidation of slurries of solid carbonaceous fuels
    35.
    发明授权
    Burner for the partial oxidation of slurries of solid carbonaceous fuels 失效
    燃烧器用于部分氧化固体碳质燃料的浆料

    公开(公告)号:US4364744A

    公开(公告)日:1982-12-21

    申请号:US247967

    申请日:1981-03-26

    Abstract: A burner and process for the partial oxidation of pumpable slurries of solid carbonaceous fuels in which the pumpable slurry of solid carbonaceous fuel in a liquid carrier is passed in liquid phase through one passage of a burner comprising a retracted central coaxial conduit, an outer coaxial conduit with a converging orifice at the downstream tip of the burner and, optionally, an intermediate coaxial conduit. The downstream tips of the central conduit and the intermediate conduit, if any, are retracted upstream from the burner face a distance of respectively two or more say 3 to 10 for the central conduit, and about 0 to 12 say 1 to 5 for the intermediate conduit times the minimum diameter of the converging orifice of the outer conduit at the burner tip. A pre-mix zone is thereby provided comprising one or more, say 2 to 5 coaxial pre-mix chambers in series. The free-oxygen containing stream is passed through a separate passage of the burner into the pre-mix zone, in which mixing takes place with the slurry of solid carbonaceous fuel and liquid carrier. From 0 to 100, say about 2 to 80, volume % of the liquid carrier may be vaporized in the pre-mix zone. The multiphase mixture of reactants is then discharged into the reaction zone of the free-flow partial oxidation gas generator by way of the converging orifice of the outer conduit at the burner tip. Synthesis gas, fuel gas, or reducing gas is thereby produced.

    Abstract translation: 用于部分氧化固体碳质燃料的可泵送浆料的燃烧器和方法,其中在液体载体中的固体碳质燃料的可泵送浆液通过燃烧器的一个通道液相通过,该燃烧器包括缩回的中心同轴导管,外部同轴导管 在燃烧器的下游尖端处具有会聚孔,并且可选地,具有中间同轴导管。 中心导管和中间导管的下游尖端(如果有的话)从燃烧器面的上游缩回,对于中心管道分别为两个或更多的距离,例如3至10,而对于中间管道,约0至12表示1至5 导管乘以燃烧器尖端处的外导管的会聚孔的最小直径。 因此,提供包括一个或多个,例如串联的2至5个同轴预混合室的预混合区。 将含游离氧的料流通过燃烧器的单独通道进入预混合区,其中与固体碳质燃料和液体载体的浆料进行混合。 从0到100,约2至80,液体载体的体积%可能在预混合区中汽化。 然后将反应物的多相混合物通过燃烧器末端处的外导管的会聚孔排出到自由流部分氧化气体发生器的反应区中。 由此制造合成气体,燃料气体或还原性气体。

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