公开(公告)号：US20030044337A1

公开(公告)日：2003-03-06

申请号：US10278806

申请日：2002-10-24

Applicant: Idemitsu Kosan Co., Ltd.

Inventor： Osamu Furuya

IPC: B01D053/50 ,  C01B007/00

CPC classification number: F23J15/006 ,  B09B3/00 ,  C04B18/06 ,  F23G2201/601 ,  F23G2201/701 ,  F23G2209/30 ,  F23J2215/20 ,  Y02W30/92 ,  C04B20/02

Abstract: Provided are a method of treating coal ash by mixing it with water, in which the coal ash and water undergo a temperature difference therebetween while they are mixed; and a method of desulfurization in a coal combustion boiler system, which comprises mixing coal ash that has been separated from a ash collector in the system, with water on the condition that the two undergo a temperature difference therebetween while they are mixed, and circulating the resulting mixture that serves as a desulfurizing agent into the coal combustor in the system. The desulfurization capability of the desulfurizing agent used in the desulfurization method is higher than that of the desulfurizing agent obtained through hydration of coal ash with water or steam.

Abstract translation: 提供了一种通过与煤混合来处理煤灰的方法，其中煤灰和水在它们混合时经历温差; 以及一种煤燃烧锅炉系统中的脱硫方法，其特征在于，将在系统中与灰收集器分离的煤灰与水混合，条件是两者在混合时经历温差，并循环 所得混合物作为脱硫剂进入系统中的煤燃烧器。 脱硫方法中脱硫剂的脱硫能力高于煤灰与水或蒸汽水合得到的脱硫剂脱硫能力。

公开(公告)号：US20020189510A1

公开(公告)日：2002-12-19

申请号：US10094969

申请日：2002-03-12

Applicant: KABUSHIKI KAISHA MEIDENSHA

Inventor： Yoshiyuki Kashiwagi ,  Haruhisa Ishigaki ,  Nobuyuki Yoshioka

IPC: F23B007/00 ,  F23G005/04

CPC classification number: B01D53/508 ,  B01D53/685 ,  C10B1/10 ,  C10B47/44 ,  C10B53/00 ,  C10J3/00 ,  C10J3/005 ,  C10J3/72 ,  C10J2300/0983 ,  C10L9/10 ,  F23G5/02 ,  F23G5/027 ,  F23G5/16 ,  F23G5/20 ,  F23G2201/303 ,  F23G2201/304 ,  F23G2201/701 ,  F23G2203/211 ,  F23G2204/20

Abstract: A process for treating a waste or treatable material containing noxious component(s), comprising the following steps: (1) carrying out a first step for the treatable material, the first step including (a) mixing a treatment agent with the treatable material to form a mixture, the treatment agent containing alkali metal compound, and (b) heating the mixture in a first furnace at a first temperature in a low oxygen atmosphere to thermally decompose the treatable material to generate a substance containing the noxious component, the substance contacting and reacting with the treatment agent to form a harmless salt; and (2) carrying out a second step for the treatable material, the second step including heating the treatable material in a second furnace separate from the first furnace, at a second temperature higher than the first temperature so as to reduce volume of the treatable material.

Abstract translation: 一种用于处理含有有害成分的废物或可处理材料的方法，包括以下步骤：（1）对可处理材料进行第一步骤，第一步骤包括（a）将处理剂与可处理材料混合至 形成混合物，所述处理剂含有碱金属化合物，和（b）在第一炉中在第一温度下在低氧气氛中加热所述混合物以热分解所述可处理材料以产生含有有害成分的物质，所述物质接触 并与处理剂反应形成无害的盐; 和（2）对可处理材料进行第二步骤，第二步骤包括在高于第一温度的第二温度下在与第一炉分离的第二炉中加热可处理材料，以减少可处理材料的体积 。

公开(公告)号：US06376738B1

公开(公告)日：2002-04-23

申请号：US09253051

申请日：1999-02-19

Applicant: Yoshiyuki Kashiwagi ,  Haruhisa Ishigaki ,  Nobuyuki Yoshioka

Inventor： Yoshiyuki Kashiwagi ,  Haruhisa Ishigaki ,  Nobuyuki Yoshioka

IPC: H62D300

CPC classification number: B01D53/508 ,  B01D53/685 ,  C10B1/10 ,  C10B47/44 ,  C10B53/00 ,  C10J3/00 ,  C10J3/005 ,  C10J3/72 ,  C10J2300/0983 ,  C10L9/10 ,  F23G5/02 ,  F23G5/027 ,  F23G5/16 ,  F23G5/20 ,  F23G2201/303 ,  F23G2201/304 ,  F23G2201/701 ,  F23G2203/211 ,  F23G2204/20

Abstract: A process for treating a waste or treatable material containing noxious component(s), comprising the following steps: (1) carrying out a first step for the treatable material, the first step including (a) mixing a treatment agent with the treatable material to form a mixture, the treatment agent containing alkali metal compound, and (b) heating the mixture in a first furnace at a first temperature in a low oxygen atmosphere to thermally decompose the treatable material to generate a substance containing the noxious component, the substance contacting and reacting with the treatment agent to form a harmless salt; and (2) carrying out a second step for the treatable material, the second step including heating the treatable material in a second furnace separate from the first furnace, at a second temperature higher than the first temperature so as to reduce volume of the treatable material.

公开(公告)号：US06375909B1

公开(公告)日：2002-04-23

申请号：US09661042

申请日：2000-09-14

Applicant: Ky Dangtran ,  Troy C. Holst

Inventor： Ky Dangtran ,  Troy C. Holst

IPC: C01B2100

CPC classification number: B01D53/64 ,  B01D53/565 ,  B01D2257/402 ,  B01D2257/404 ,  B01D2257/602 ,  F23G2201/701 ,  F23J2215/10 ,  F23J2215/60 ,  F23J2219/70 ,  F23J2219/80 ,  Y02C20/10

Abstract: The process is by injection of calcium chloride into the combustor and lowering the flue gas temperature in sufficient time to enhance oxidation of mercury and nitrogen oxides into more soluble products prior to their absorption in a wet scrubber. The additive also increases the alkalinity and the pH of the scrubber water, therefore, favorably increasing the absorption of the pollutants. The flue gas is then cooled to ambient temperature or less to enhance the removal of mercury.

Abstract translation: 该过程是通过将氯化钙注入燃烧器中并在足够的时间内降低烟道气体温度，以在汞吸收剂在湿式洗涤器中吸收之前将汞和氮氧化物氧化成更可溶的产物。 添加剂还增加洗涤器水的碱度和pH值，因此有利地增加污染物的吸收。 然后将烟道气冷却至环境温度或更低，以增强汞的去除。

公开(公告)号：US6029588A

公开(公告)日：2000-02-29

申请号：US55502

申请日：1998-04-06

Applicant: Thomas J. Baudhuin

Inventor： Thomas J. Baudhuin

IPC: B09B3/00 ,  F23G5/00 ,  F23G5/14 ,  F23G5/44 ,  F23J15/00 ,  F23B7/00

CPC classification number: F23G5/006 ,  F23J15/006 ,  F23G2201/701 ,  F23G2202/20 ,  F23J2215/50 ,  F23J2219/70 ,  F23L2900/07001 ,  Y02E20/322 ,  Y02E20/324 ,  Y10S62/928

Abstract: Non-hazardous organic waste material is introduced into a slagging combustor where it is burned. The burning produces exhaust gases and a slag of molten, inorganic ash which is removed from the combustor. The exhaust gases are treated to cool and dry the gases and to remove a major portion of particulate matter contained therein. A portion of the treated exhaust gases is mixed with a source of concentrated oxygen in a proportion that results in mixed gases having an oxygen concentration of at least 30% by volume. The mixed gases are introduced into the combustor to support the burning of the waste material. Another portion of the treated exhaust gases is further treated to recover the carbon dioxide therefrom.

Abstract translation: 无害有机废料被引入到其被燃烧的造渣燃烧器中。 燃烧产生废气和从燃烧器中除去的熔融无机灰渣。 处理废气以冷却和干燥气体并除去其中所含的颗粒物质的主要部分。 经处理的废气的一部分与浓氧源以一定比例混合，其中氧气浓度至少为30体积％。 将混合气体引入燃烧器中以支持废料的燃烧。 处理废气的另一部分被进一步处理以从其中回收二氧化碳。

公开(公告)号：US5890443A

公开(公告)日：1999-04-06

申请号：US563819

申请日：1995-11-28

Applicant: Sadao Taya ,  Masafumi Maeda

Inventor： Sadao Taya ,  Masafumi Maeda

IPC: F23G5/00 ,  A62D101/20 ,  A62D101/22 ,  A62D101/26 ,  B09B3/00 ,  C10G1/10 ,  C10J3/00 ,  F23G5/027 ,  F23G5/44 ,  F23G7/00

CPC classification number: A62D3/40 ,  F23G5/027 ,  F23G5/448 ,  A62D2101/20 ,  A62D2101/22 ,  A62D2101/26 ,  F23G2201/40 ,  F23G2201/701 ,  F23G2209/28

Abstract: A low-cost volume-reducing treatment method for waste which thermally decomposes or burns chlorine-containing waste while the generation of hydrogen chloride and dioxin is completely or considerably suppressed. According to the method, volume of the waste can be greatly reduced. Shredder dust and other waste which contains chlorine derived from, for example, chlorine-containing polymers is thermally decomposed or burned at a temperature of 300.degree. to 1000.degree. C. in a reducing atmosphere where unburned carbon remains. Preferably, a basic material like red mud which contains alkali metal oxides or alkaline earth metal oxides is added before treatment.

Abstract translation: 在生成氯化氢和二恶英完全或显着抑制的同时热分解或燃烧含氯废物的废物的低成本体积减小处理方法。 根据该方法，废物的体积可以大大降低。 含有氯的高分子的粉碎粉尘等废弃物在含有未燃碳的还原气氛中在300〜1000℃的温度下热分解或燃烧。 优选在处理前加入含有碱金属氧化物或碱土金属氧化物的红泥等碱性物质。

公开(公告)号：US5744690A

公开(公告)日：1998-04-28

申请号：US882352

申请日：1997-06-25

Applicant: Naruo Yokoyama ,  Satoru Saito ,  Suminori Tanaka ,  Masaharu Nishihara ,  Minoru Ohsugi

Inventor： Naruo Yokoyama ,  Satoru Saito ,  Suminori Tanaka ,  Masaharu Nishihara ,  Minoru Ohsugi

IPC: C08K3/22 ,  C08K3/34 ,  C10L9/10 ,  C10L10/00 ,  C10L10/02 ,  C10L10/04 ,  B01D53/68

CPC classification number: C08K3/22 ,  C08K3/34 ,  C10L10/00 ,  C10L10/02 ,  C10L10/04 ,  C10L9/10 ,  F23G2201/701 ,  F23G2209/28

Abstract: The disclosure describes a method of incinerating combustible wastes comprising the step of incinerating said combustible wastes in the presence of a calcium compound and particles selected from the group consisting of iron oxide particles, ferric oxide hydroxide particles and mixed particles thereof.

Abstract translation: 本公开内容描述了一种焚烧可燃废物的方法，包括在钙化合物和选自氧化铁颗粒，氧化铁氢氧化物颗粒及其混合颗粒的颗粒存在下焚烧所述可燃废物的步骤。

公开(公告)号：US4869182A

公开(公告)日：1989-09-26

申请号：US196716

申请日：1988-05-20

Applicant: Horst Welzel ,  Otto Faatz

Inventor： Horst Welzel ,  Otto Faatz

IPC: B09B3/00 ,  B01D53/34 ,  C10L9/10 ,  C10L10/00 ,  F23B90/00 ,  F23G5/00 ,  F23G5/02 ,  F23G7/00 ,  F23K1/00

CPC classification number: F23K1/00 ,  C10L9/10 ,  F23G5/02 ,  F23G2201/701 ,  F23K2201/505

Abstract: Virtually complete bonding of salt-forming agents to solids during the combustion of fossil fuels, waste or the like by adding basic solids, in particular CaCO.sub.3 or MgCO.sub.3, can be achieved by the following process steps:the moisture content of the fossil fuels, the waste or the like is adjusted to 10 to 35% by weight;the basic substances are added to the fossil fuels, the waste or the like in the most uniform distribution possible, the stoichiometric ratio of basic substances to salt-forming agents being less than 5:1;after the basic substances have been added, the fossil fuels, waste or the like remain in an essentially sealed container, so that a state of water vapor saturation is obtained;the mixture is then burnt at a fuel bed temperature below the thermal dissociation temperature of the compounds resulting from the basic substances and the halogens.

Abstract translation: 通过添加碱性固体，特别是CaCO3或MgCO3，可以在化石燃料，废物等燃烧过程中将成盐剂完全粘合到固体上，方法如下：化石燃料的含水量， 废物等调整为10〜35重量％ 基本物质以最均匀的分布被添加到化石燃料，废物等中，碱性物质与成盐剂的化学计量比小于5:1; 在添加碱性物质之后，化石燃料，废物等保留在基本密封的容器中，从而获得水蒸汽饱和状态; 然后将混合物在低于由碱性物质和卤素产生的化合物的热解离温度的燃料床温度下燃烧。

公开(公告)号：US4793270A

公开(公告)日：1988-12-27

申请号：US946035

申请日：1986-12-24

Applicant: Francis W. Karasek ,  Leslie C. Dickson ,  Otto Hutzinger

Inventor： Francis W. Karasek ,  Leslie C. Dickson ,  Otto Hutzinger

IPC: B01D53/34 ,  B01D53/70 ,  F23G7/00 ,  F23J7/00 ,  F23J15/00 ,  F23B7/00

CPC classification number: B01D53/70 ,  F23G7/00 ,  F23J15/00 ,  F23J15/003 ,  F23J7/00 ,  F23G2201/701 ,  F23J2215/30 ,  F23J2215/301

Abstract: In the conventional incineration of solid waste materials, flyash present in the combustion products gas stream catalyzes the formation of toxic dioxins from chlorinated organic materials. By providing a catalyst poison, such as carbon disulphide, in association with the flyash, typically by spraying onto the solid wastes prior to incineration, the catalytic effect is decreased, resulting in decreased dioxin formation.

Abstract translation: 在固体废物的常规焚烧中，燃烧产物气流中存在的飞灰催化氯化有机物质形成有毒的二恶英。 通常通过在焚烧之前通过喷洒到固体废物上而与粉煤灰相关联地提供催化剂毒物如二硫化碳，催化效果降低，导致二恶英形成减少。

公开(公告)号：US20230184432A1

公开(公告)日：2023-06-15

申请号：US17933301

申请日：2022-09-19

Applicant: IMERTECH SAS

Inventor： CHRISTIAN RAVAGNANI ,  ALEXANDRE SEVAGEN ,  MURIELLE PERRONNET

IPC: F23K1/00 ,  F23G7/00 ,  F23G5/48 ,  F23G7/10

CPC classification number: F23K1/00 ,  F23G7/008 ,  F23G5/48 ,  F23G7/10 ,  F23G2201/701 ,  F23G2203/10 ,  F23G2203/50 ,  F23G2900/7003 ,  F23G2203/20 ,  F23K2200/00 ,  F23K2201/501

Abstract: Mineral additives and a method for operating a waste-to-energy furnace are provided in order to improve its operational performance and availability, increase the lifetime of the combustor building materials (refractory walls and heat-exchanger metallic tubes) and flue gas treatment equipment, improve ash quality, reduce emissions and avoid combustion problems such as agglomeration, slagging, deposition, and corrosion. A method for operating a waste-to-energy furnace, such as a fluidized bed reactor, pulverized-fuel combustor, grate combustor includes introducing mineral additive into the furnace. The method further includes heating at least a portion of the mineral additive either intimately in contact with the fuel, such that the ability of mineral additive to induce crystallization of the surface of forming ashes is enhanced, or minimizing the contact of the mineral additive with the fuel and the forming ashes, such that the solid-gas reactions between the mineral additive and the volatile compounds in the flue gas are favored and the mineral additive power to capture at least a portion of the inorganic volatile compounds present in the furnace is enhanced.