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公开(公告)号：US4851151A
公开(公告)日：1989-07-25
申请号：US190928
申请日：1988-05-06
Applicant: Mitri S. Najjar , Roger J. Corbeels , Uygur Kokturk
Inventor： Mitri S. Najjar , Roger J. Corbeels , Uygur Kokturk
CPC classification number: C01B3/32 , C10J3/00 , C10J2300/0983 , C10J2300/1846
Abstract: A process for the partial oxidation of a sulfur- and silicate-containing carbonaceous fuel to produce a synthesis gas with reduced sulfur content which comprises partially oxidizing said fuel at a temperature in the range of 1800.degree.-2200.degree. F. in the presence of a temperature moderator, an oxygen-containing gas and a sulfur capture additive which comprises an iron-containing compound portion and a sodium-containing compound portion to produce a synthesis gas comprising H.sub.2 and CO with a reduced sulfur content and a molten slag which comprises (i) a sulfur-containing sodium-iron silicate phase and (ii) a sodium-iron sulfide phase. The sulfur capture additive may optionally comprise a copper-containing compound portion.
Abstract translation: 含硫和硅酸盐的含碳燃料的部分氧化以产生具有降低的硫含量的合成气的方法，该方法包括在1800-2200°F的温度范围内部分氧化所述燃料 温度调节剂，含氧气体和硫捕获添加剂，其包含含铁化合物部分和含钠化合物部分，以产生包含具有降低的硫含量的H 2和CO的合成气和熔融炉渣，其包含（i ）含硫的硅酸钠相和（ii）硫化钠 - 硫化钠相。 硫捕获添加剂可任选地包含含铜化合物部分。
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公开(公告)号：US4801440A
公开(公告)日：1989-01-31
申请号：US20307
申请日：1987-03-02
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C01B3/36 , C10J3/463 , C10J3/466 , C10K1/004 , C10K1/024 , C10K1/16 , C01B2203/0255 , C01B2203/0415 , C01B2203/045 , C01B2203/0465 , C01B2203/0485 , C01B2203/0877 , C01B2203/0883 , C01B2203/0894 , C01B2203/1247 , C01B2203/1258 , C01B2203/127 , C01B2203/1276 , C01B2203/146 , C01B2203/148 , C10J2300/0959 , C10J2300/0996 , C10J2300/1846
Abstract: A process for the simultaneous partial oxidation and desulfurization of sulfur and silicate-containing solid carbonaceous fuel for the production of gaseous mixtures comprising H.sub.2 and CO and containing less than about 0.05 volume % of H.sub.2 S and COS. In the process, the solid carbonaceous fuel and a calcium-containing compound are reacted by partial oxidation in the reaction zone of a free-flow unobstructed gas generator with a controlled amount of free-oxygen containing gas and a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-12 atmospheres. The total moles of calcium in the reaction zone is at least equal to about 1.0 times the moles of sulfur in the solid carbonaceous fuel. The partial oxidation and desulfurization reactions take place simultaneously at a temperature which is about 10.degree. to 200.degree. F. below the softening temperature of the ash in the solid carbonaceous fuel and below about 2000.degree. F. at an increased gasification efficiency. The sulfur in the solid carbonaceous fuel in the reaction zone is converted into calcium sulfide particulate matter which leaves the reaction zone along with the fly-ash entrained in the hot raw effluent gas stream.
Abstract translation: 一种用于同时部分氧化和脱硫硫和含硅酸盐的固体碳质燃料的方法，用于生产包含H 2和CO并含有少于约0.05体积％的H 2 S和COS的气态混合物。在该方法中，固体碳质燃料和 含钙化合物在具有受控量的含游离氧的气体和温度调节剂的自由流通无机气体发生器的反应区中通过部分氧化反应，使得在气相中提供平衡氧浓度 反应区具有小于约10-12个大气压的分压。 反应区中钙的总摩尔数至少等于固体碳质燃料中硫的摩尔数的约1.0倍。 部分氧化和脱硫反应在固体碳质燃料中的灰分的软化温度低于约10°至200°F的温度下同时进行，并且在提高的气化效率下低于约2000°F。 反应区中固体碳质燃料中的硫被转化成硫化钙颗粒物质，其随着夹带在热的原始流出气流中的飞灰而离开反应区。
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公开(公告)号：US4801438A
公开(公告)日：1989-01-31
申请号：US62018
申请日：1987-06-15
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C10J3/463 , C10J1/16 , C10J3/466 , C10K1/004 , C01B2203/0255 , C01B2203/0415 , C01B2203/045 , C01B2203/0465 , C01B2203/0485 , C01B2203/0877 , C01B2203/0883 , C01B2203/0894 , C01B2203/127 , C01B2203/146 , C01B2203/148 , C10J2300/0996 , C10J2300/1223 , C10J2300/1846
Abstract: A process for the simultaneous partial oxidation and desulfurization of an ash-containing solid carbonaceous fuel comprising (basis solid fuel) 0.2 to 6.0 wt. % sulfur and 0.1 to 30 wt. % of silicate compounds for the production of gaseous mixtures comprising H.sub.2 and CO and entrained molten slag. In the process, the solid carbonaceous fuel and first and second types of supplemental calcium-containing materials are reacted by partial oxidation in the reaction zone of a free-flow unobstructed down-flowing vertical refractory lined gas generator with a controlled amount of free-oxygen containing gas and a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-9 atmospheres. The partial oxidation and desulfurization reactions take place simultaneously at a temperature above about 1900.degree. F. and about 10.degree. to 100.degree. F. above the fluid temperature of the slag at an increased thermal efficiency. The sulfur in the solid carbonaceous fuel in the reaction zone is converted into calcium and iron sulfide particulate matter which leaves the reaction zone along with the silicates of calcium and iron in the molten ash that is entrained in the hot raw effluent gas stream. Additional desulfurization in a fluidized bed containing calcium-containing material in admixture with carbon-containing material may be used to reduce the amount of H.sub.2 S and COS in the effluent gas stream to less than about 0.05 volume %.
Abstract translation: 含有固体含碳燃料的同时部分氧化和脱硫的方法，包括（基础固体燃料）0.2至6.0重量％ ％硫和0.1至30wt。 用于生产包含H 2和CO以及夹带的熔渣的气态混合物的硅酸盐化合物的％。 在此过程中，固体碳质燃料和第一种和第二种补充含钙材料在自由流动无阻碍下垂垂直耐火材料衬里气体发生器的反应区域中通过部分氧化反应，受控量的游离氧气 含有气体和温度调节剂，使得在分压小于约10-9大气压的反应区中的气相中提供平衡氧浓度。 部分氧化和脱硫反应在提高的热效率的同时在高于约1900°F和高于炉渣流体温度约10°至100°F的温度下进行。 反应区中固体碳质燃料中的硫被转化成钙和硫化铁颗粒物质，它们随着夹带在热的原始流出物气流中的熔融灰中与钙和铁的硅酸盐一起离开反应区。 含钙材料与含碳材料混合的流化床中的额外脱硫可用于将流出气流中的H 2 S和COS的量减少到小于约0.05体积％。
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公开(公告)号：US4925644A
公开(公告)日：1990-05-15
申请号：US276735
申请日：1988-11-28
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
IPC: C10J3/46
CPC classification number: C10J3/466 , C10K1/004 , C01B2203/0255 , C01B2203/0415 , C01B2203/045 , C01B2203/0465 , C01B2203/0485 , C01B2203/0877 , C01B2203/0883 , C01B2203/0894 , C01B2203/127 , C01B2203/146 , C01B2203/148 , C10J2300/0996
Abstract: A process for the simultaneous partial oxidation and desulfurization of sulfur and silicate-containing solid carbonaceous fuel for the production of a gas stream comprising gaseous mixtures of H.sub.2 and CO and containing less than about 0.05 volume % of H.sub.2 S and COS, and entrained fly-ash, calcium sulfide, and particulate carbon. In the process, the solid carbonaceous fuel and a calcium-containing compound are entrained in a gaseous medium and are reacted by partial oxidation in the reaction zone of a free-flow unobstructed gas generator with a controlled amount of free-oxygen containing gas and with or without a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-12 atmosphere. The total moles of calcium in the reaction zone is at least equal to about 1.0 times the moles of sulfur in the solid carbonaceous fuel. The partial oxidation and desulfurization reactions take place simultaneously at a temperature which is at least about 400.degree. F. below the softening temperature of the ash in the solid carbonaceous fuel at an increased gasification efficiency. The sulfur in the solid carbonaceous fuel in the reaction zone is converted into calcium sulfide particulate matter which leaves the reaction zone along with the fly-ash entrained in the hot raw effluent gas stream.
Abstract translation: 用于同时部分氧化和脱硫硫和含硅酸盐的固体碳质燃料的方法，用于生产包含H 2和CO的气体混合物并且含有少于约0.05体积％的H 2 S和COS的气流和夹带的飞灰 ，硫化钙和颗粒状碳。 在此过程中，将固体含碳燃料和含钙化合物夹带在气体介质中，并通过部分氧化反应，在自由流动通畅气体发生器的反应区域中控制含量的含游离氧的气体，并与 或没有温度调节剂，使得在具有小于约10-12气氛的分压的反应区中的气相中提供平衡氧浓度。 反应区中钙的总摩尔数至少等于固体碳质燃料中硫的摩尔数的约1.0倍。 部分氧化和脱硫反应在提高的气化效率的同时在比固体碳质燃料中的灰分的软化温度低至少约400°F的温度下进行。 反应区中固体碳质燃料中的硫被转化成硫化钙颗粒物质，其随着夹带在热的原始流出气流中的飞灰而离开反应区。
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公开(公告)号：US4808386A
公开(公告)日：1989-02-28
申请号：US100673
申请日：1987-09-24
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C10J3/463 , C10J3/466 , C10K1/004 , C10K1/08 , C10K1/16 , C01B2203/0255 , C01B2203/0415 , C01B2203/045 , C01B2203/0465 , C01B2203/0485 , C01B2203/0877 , C01B2203/0883 , C01B2203/0894 , C01B2203/127 , C01B2203/146 , C01B2203/148 , C10J2300/1846
Abstract: A process for the simultaneous partial oxidation and desulfurization of an ash-containing solid carbonaceous fuel comprising (basis solid fuel) 0.2 to 8.0 wt. % sulfur and 0.1 to 30 wt. % of silicate compounds for the production of gaseous mixtures comprising H.sub.2 and CO and entrained molten slag. In the process, the solid carbonaceous fuel and supplemental iron-containing material are reacted by partial oxidation in the reaction zone of a free-flow unobstructed down-flowing vertical refractory lined gas generator with a controlled amount free-oxygen containing gas and a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-7 atmospheres. The partial oxidation and desulfurization reactions take place simultaneously at a temperature which is above 1900.degree. F. and about 10.degree. to 200.degree. F. above the fluid temperature of the slag at an increased thermal efficiency. The sulfur in the solid carbonaceous fuel in the reaction zone is converted into iron oxysulfide particulate matter which leaves the reaction zone along with the silicates of calcium and iron in the molten ash that is entrained in the hot raw effluent gas stream comprising H.sub.2 and CO. Less than about 0.6 mole % of H.sub.2 S and COS is in the effluent gas stream. Additional desulfurization in a fluidized bed of calcium and carbon containing materials may be optionally used to reduce the mole % of H.sub.2 S and COS.
Abstract translation: 含有固体含碳燃料的同时部分氧化和脱硫的方法，包括（基础固体燃料）0.2〜8.0重量％ ％硫和0.1至30wt。 用于生产包含H 2和CO以及夹带的熔渣的气态混合物的硅酸盐化合物的％。 在此过程中，固体碳质燃料和补充含铁材料通过部分氧化反应，在自由流动的无阻碍垂直耐火材料内衬气体发生器的反应区域中，其具有受控量的含游离氧气体和温度调节剂 使得在具有小于约10-7大气压的分压的反应区中的气相中提供平衡氧浓度。 部分氧化和脱硫反应在提高的热效率的同时在高于1900°F和高于炉渣流体温度约10°至200°F的温度下进行。 反应区中固体碳质燃料中的硫被转化成硫氧化铁颗粒物质，它与夹带在包含H 2和CO的热的原始流出气流中的熔融灰中的钙和铁的硅酸盐一起离开反应区。 低于约0.6摩尔％的H 2 S和COS在流出气流中。 可以任选地使用含钙和碳的材料的流化床中的另外的脱硫来降低H 2 S和COS的摩尔％。
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Patent Agency Ranking
公开(公告)号：US4876031A
公开(公告)日：1989-10-24
申请号：US161581
申请日：1988-02-29
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C10J3/463 , C01B3/386 , C10J3/466 , C01B2203/0255 , C01B2203/0415 , C01B2203/0465 , C01B2203/0485 , C01B2203/0877 , C01B2203/1247 , C01B2203/1258 , C01B2203/1276 , C01B2203/145 , C01B2203/148 , C10J2300/0983 , C10J2300/1846
Abstract: Synthesis gas is produced by the partial oxidation of a feedstock comprising petroleum coke and/or heavy liquid hydrocarbonaceous fuel containing sulfur and having an ash that contains nickel, vanadium and a low content of silicon. An iron-containing additive is introduced into the vertical free-flow unobstructed refractory lined reaction zone along with the feed to produce first and second types of liquid phase washing agents which collect and transport at least a portion of the vanadium-containing oxide laths and spinels and other ash components out of the reaction zone. The refractory lining of the reaction zone comprises in wt. %: MgO 85 to 98, Fe.sub.2 O.sub.3 0.03 to 3.0, Al.sub.2 O.sub.3 0.02 to 2.0, CaO 0.01 to 10, and SiO.sub.2 0.02 to 2.0. Elemental iron may be prevented from forming in the reaction zone by introducing sufficient supplemental oxygen-containing material and/or sulfur-containing material into the reaction zone so as to keep the partial pressure of oxygen and/or S.sub.2 gas in the reaction zone slightly above that calculated from Formulae I and/or II. The refractory substantially resists corrosion, erosion, and chemical attack by the molten slag. The life of the refractory is extended. Further, the molten slag is modified by contact with the refractory so that it runs more freely from the gasifier. By this method molten slag having a reduced viscosity and containing the nickel and vanadium-containing impurities from the feedstock and refractory components is readily removed from the gas generator.
Abstract translation: 合成气是通过包含石油焦和/或含有硫的重液态含烃燃料并含有含有镍，钒和低含量硅的灰分的原料的部分氧化而产生的。 将含铁添加剂与进料一起引入垂直自由流无障碍耐火材料衬里反应区，以产生第一和第二类液相洗涤剂，其收集并输送至少一部分含钒氧化物板条和尖晶石 和其他灰分成分排出反应区。 反应区的耐火衬里包含重量百分比。 ％：MgO 85〜98，Fe 2 O 3 0.03〜3.0，Al 2 O 3 0.02〜2.0，CaO 0.01〜10，SiO 2 0.02〜2.0。 可以通过在反应区中引入足够的补充含氧材料和/或含硫材料来避免在反应区中形成元素铁，以使反应区中的氧气和/或S2气体的分压略高于 由公式I和/或II计算得出。 耐火材料基本上抵抗了熔渣的腐蚀，腐蚀和化学侵蚀。 耐火材料的寿命延长。 此外，通过与耐火材料接触来改变熔渣，使得其从气化器更自由地运行。 通过这种方法，具有降低的粘度并且含有来自原料和难熔组分的含有镍和钒的杂质的熔渣容易从气体发生器中除去。
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公开(公告)号：US4778485A
公开(公告)日：1988-10-18
申请号：US90822
申请日：1987-08-28
Applicant: Robert M. Suggitt , Mitri S. Najjar , Roger J. Corbeels
Inventor： Robert M. Suggitt , Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C10J3/466 , C01B3/36 , C01B3/56 , C10J2300/093 , C10J2300/0943 , C10J2300/0956 , C10J2300/0959 , C10J2300/0969 , C10J2300/0973 , C10J2300/0976 , C10J2300/0983
Abstract: Synthesis gas, fuel gas, or reducing gas is produced by the noncatalytic partial oxidation of a sulfur-containing liquid hydrocarbonaceous fuel or a slurry of sulfur-containing solid carbonaceous fuel 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 1900.degree. F. to 2900.degree. F. and above the ash-fusion temperature of the slag formed in the reaction zone, so that about 75 to 95 weight percent of the carbon in the fuel feed to the reaction zone is converted into carbon oxides. At least a portion of the hot effluent gas stream from the reaction zone is passed through a free-flow radiant cooler in admixture with an iron-containing additive. In the radiant cooler at least a portion of the sulfur-containing gases e.g. H.sub.2 S and COS react with the iron-containing additive to produce particulate matter comprising iron oxysulfide. Further, a portion of this newly formed particulate matter and/or the iron-containing additive combine with molten slag and/or ash in the hot raw gas stream passing through the radiant gas cooler. The slag produced thereby has a reduced ash fusion temperature and a reduced viscosity. The remainder of the newly formed particulate matter comprising iron oxysulfide and particulate carbon are entrained in the effluent gas stream leaving the radiant syngas cooler and are separated from the effluent gas stream and optionally recycled to the partial oxidation reaction zone in admixture with fresh fuel feed.
Abstract translation: 合成气体，燃料气体或还原性气体是通过含硫液体烃类燃料或含硫固体碳质燃料与含游离氧气体的浆料在自由流动反应区中的非催化部分氧化 耐火衬里气体发生器，其自生温度在约1900°F至2900°F的范围内，并高于在反应区中形成的炉渣的灰熔融温度，使得约75至95重量％的碳在 进入反应区的燃料转化为碳氧化物。 来自反应区的至少一部分热的废气流与含铁添加剂的混合物通过自由流辐射冷却器。 在辐射冷却器中，至少一部分含硫气体例如 H 2 S和COS与含铁添加剂反应产生包含硫氧化铁的颗粒物质。 此外，这种新形成的颗粒物质和/或含铁添加剂的一部分与通过辐射气体冷却器的热原料气流中的熔渣和/或灰分组合。 由此产生的炉渣具有降低的灰熔融温度和降低的粘度。 新形成的包含硫氧化铁和颗粒碳的颗粒物质的其余部分被夹带在离开辐射合成气冷却器的流出气流中，并与废气流分离，并任选地与新鲜燃料进料混合再循环到部分氧化反应区。
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公开(公告)号：US4774021A
公开(公告)日：1988-09-27
申请号：US32157
申请日：1987-03-27
Applicant: Mitri S. Najjar , Roger J. Corbeels
Inventor： Mitri S. Najjar , Roger J. Corbeels
CPC classification number: C01B17/06 , C10J3/466 , C10K1/16 , C01B2203/0255 , C01B2203/0415 , C01B2203/045 , C01B2203/0485 , C01B2203/0877 , C01B2203/0883 , C01B2203/0894 , C01B2203/127 , C01B2203/148 , C10J2300/0959 , C10J2300/0983 , C10J2300/1223 , C10J2300/1846
Abstract: A process for the simultaneous partial oxidation and desulfurization of sulfur and silicate-containing solid carbonaceous fuel for the production of gaseous mixtures comprising H.sub.2 and CO and containing less than about 0.05 volume % of H.sub.2 S and COS. In the process, an aqueous slurry of the solid carbonaceous fuel and a copper-containing compound are reacted by partial oxidation in the reaction zone of a free-flow unobstructed down-flowing vertical refractory lined gas generator with a controlled amount of free-oxygen containing gas and with optionally a temperature moderator so that an equilibrium oxygen concentration is provided in the gas phase in the reaction zone having a partial pressure which is less than about 10.sup.-6 atmosphere. The O/C atomic ratio is in the range of about 0.5 to 2.0. The H.sub.2 O/solid carbonaceous fuel weight ratio is in the range of about 0.2 to 0.7. Further, the total moles of copper in the reaction zone is at least equal to about 1.0 times the moles of sulfur in the solid carbonaceous fuel. The partial oxidation and desulfurization reactions take place simultaneously at a temperature which produces fly-ash or molten slag at an increased thermal efficiency. At least about 90 wt. % of the sulfur in the solid carbonaceous fuel in the reaction zone is converted into copper oxysulfide particulate matter which leaves the reaction zone along with the fly-ash or molten slag entrained in the hot raw effluent gas stream comprising H.sub.2, CO, CO.sub.2 at least one gas selected from the group consisting of H.sub.2 O, N.sub.2, CH.sub.4 and A; and less than about 0.05 volumne % of H.sub.2 S and COS. The mole ratio in the reaction zone for H.sub.2 O/H.sub.2 is in the range of about 0.4 to 3.0.
Abstract translation: 用于同时部分氧化和脱硫硫和含硅酸盐的固体碳质燃料的方法，用于生产包含H 2和CO并含有少于约0.05体积％的H 2 S和COS的气态混合物。在该方法中， 固体碳质燃料和含铜化合物通过部分氧化在具有受控量的含游离氧的气体和任选的温度调节剂的自由流动无阻碍的垂直耐火材料内衬气体发生器的反应区中反应，使得 在具有小于约10 -6气压的分压的反应区中的气相中提供平衡氧浓度。 O / C原子比在约0.5至2.0的范围内。 H 2 O /固体碳质燃料重量比在约0.2至0.7的范围内。 此外，反应区中铜的总摩尔数至少等于固体碳质燃料中硫的摩尔数的约1.0倍。 部分氧化和脱硫反应在产生飞灰或熔渣的温度下同时发生，其热效率提高。 至少约90wt。 反应区中固体碳质燃料中的硫的％转化为硫氧化硫颗粒物质，其与至少包含H 2，CO，CO 2的热的原始流出物气流中的飞灰或熔渣一起离开反应区 一种选自H 2 O，N 2，CH 4和A的气体; 和小于约0.05体积％的H 2 S和COS。在H 2 O / H 2的反应区中的摩尔比在约0.4至3.0的范围内。
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公开(公告)号：US4392981A
公开(公告)日：1983-07-12
申请号：US373367
申请日：1982-04-30
Applicant: Roger J. Corbeels , Charles G. Sengenberger
Inventor： Roger J. Corbeels , Charles G. Sengenberger
CPC classification number: B03B9/005 , B03B1/00 , B03D1/0043 , B03D1/008 , B03D1/02 , C10J3/466 , C10J3/485 , C10J3/74 , C10J3/78 , C10J3/84 , C10J3/845 , C10K1/02 , B03D2203/005 , C10J2300/093 , C10J2300/0943 , C10J2300/0946 , C10J2300/0956 , C10J2300/0959 , C10J2300/0976 , C10J2300/1631 , C10J2300/1807 , C10J2300/1823 , C10J2300/1846
Abstract: Unconverted char in a mixture of particles formed in the partial oxidation of an ash-containing solid fuel is recovered by grinding the mixture and subjecting the ground material to froth flotation.
Abstract translation: 在含灰分固体燃料的部分氧化中形成的颗粒的混合物中未转化的焦炭通过研磨混合物并使研磨材料进行泡沫浮选来回收。
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公开(公告)号：US4265407A
公开(公告)日：1981-05-05
申请号：US57222
申请日：1979-07-13
Applicant: Richard V. Kessler , Roger J. Corbeels
Inventor： Richard V. Kessler , Roger J. Corbeels
CPC classification number: C10L1/326
Abstract: A method of producing a thick slurry of powdered coal and water. It includes feeding less coal than is required for the thick slurry into a ball mill, and introducing all of the water required so that a thin slurry is produced. The remaining coal required is pulverized in a dry grinder, and the thin slurry and dry powdered coal are mixed to produce the desired thick slurry.
Abstract translation: 一种生产粉煤和水的稠浆的方法。 它包括比将粗浆料所需的煤量减少到球磨机中，并引入所需的所有水以产生稀浆。 所需的剩余煤在干式研磨机中粉碎，并将稀浆和干粉煤混合以产生所需的稠浆料。
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