公开(公告)号：WO2014134128A1

公开(公告)日：2014-09-04

申请号：PCT/US2014/018586

申请日：2014-02-26

Applicant: FUEL TECH, INC.

Inventor： SMYRNIOTIS, Christopher, R. ,  SCHULZ, Kent, W. ,  RIVERA, Emelito, P. ,  SARATOVSKY, Ian ,  GAVASKAR, Vasudeo, S.

IPC: B01D53/50

CPC classification number: B01D53/68 ,  B01D53/507 ,  B01D2251/60 ,  B01D2251/80 ,  B01D2257/2045 ,  B01D2258/0283 ,  B01D2259/124 ,  F23J2215/20 ,  F23J2215/30

Abstract: The description relates to reducing emissions of HCI and sulfur oxides by treating combustion gases with an aqueous copper compound referred to as copper-based chloride remediator (CBCR). The process is preferably implemented by identifying locations within a combustor for feeding the CBCR, determining the physical form and injection parameters for the CBCR and injecting the CBCR under conditions effective to reduce HCI and/or sulfur oxides. Effective temperatures for introducing the copper-based chloride remediators are preferably within the range of from about 250° to 900°F where the objective is to reduce HCI, while temperatures up to about 2200°F can be employed where the objective is to reduce sulfur oxides.

Abstract translation: 该描述涉及通过用称为铜基氯化物修复剂（CBCR）的铜水溶液处理燃烧气体来减少HCl和硫氧化物的排放。 该方法优选通过识别用于供给CBCR的燃烧器内的位置，确定CBCR的物理形式和注入参数以及在有效降低HCl和/或硫氧化物的条件下注入CBCR来实现。 用于引入铜基氯化物修复剂的有效温度优选在约250°至900°F的范围内，其目的是降低HCl，而可以使用高达约2200°F的温度，其目的是减少硫 氧化物。

公开(公告)号：WO2006124772A3

公开(公告)日：2008-01-03

申请号：PCT/US2006018722

申请日：2006-05-16

Applicant: FUEL TECH INC ,  MARTIN J DAVID ,  SMYRNIOTIS CHRISTOPHER R ,  SCHULZ KENT W ,  SUN WILLIAM H ,  BOHLEN SCOTT K

Inventor： MARTIN J DAVID ,  SMYRNIOTIS CHRISTOPHER R ,  SCHULZ KENT W ,  SUN WILLIAM H ,  BOHLEN SCOTT K

IPC: G01N21/00

CPC classification number: F23J7/00 ,  C02F1/70 ,  C02F5/083 ,  C02F2103/023 ,  C02F2303/08 ,  C10L10/04 ,  C23F11/182 ,  C23F14/02 ,  F22B37/025 ,  F23G5/48 ,  F28F19/00 ,  G01N17/006 ,  G01N17/02 ,  G01N17/04

Abstract: A corrosion control process is described. The process is especially useful in the control of chloride corrosion in waste to energy boilers. Corrosion of high temperature surfaces can be assessed by the monitor and controlled introduction of treatment chemicals by targeted in furnace injection reduces corrosion while maximizing combustion efficiency. A corrosion monitor is also described. Before and following selection of corrosion control chemicals and the locations for targeted in furnace injection, injection regimen and chemical selection and introduction parameters are monitored with the aid of the method and apparatus of the invention to adjust one or more control parameters to reduce corrosion. A preferred method will employ a treatment chemical that comprises an SO2 or SO3 reagent, e.g., sulfuric acid, sulfur, a sulfate salt or a bisulfite salt.

Abstract translation: 描述了腐蚀控制过程。 该方法在废物能量锅炉的氯化物腐蚀控制中特别有用。 高温表面的腐蚀可以通过监视器进行评估，并通过目标在炉内注射来控制引入处理化学品，减少腐蚀同时最大化燃烧效率。 还描述了腐蚀监测器。 在选择腐蚀控制化学品之前和之后，以及针对炉内注射的位置，借助于本发明的方法和装置监测注射方案和化学选择和引入参数，以调节一个或多个控制参数以减少腐蚀。 优选的方法将使用包含SO 2或SO 3试剂如硫酸，硫，硫酸盐或亚硫酸氢盐的处理化学品。

公开(公告)号：WO2002095507A1

公开(公告)日：2002-11-28

申请号：PCT/US2002/016340

申请日：2002-05-23

Applicant: FUEL TECH, INC. ,  CHESS, Karen, L. ,  HEATH, Daniel, J. ,  MICHELS, William, F.

Inventor： CHESS, Karen, L. ,  HEATH, Daniel, J. ,  MICHELS, William, F.

IPC: G05B11/01

CPC classification number: G05B23/0267

Abstract: A hardware-adaptable data visualization tool (Figure 2) for use in visualizing data from a data source, including a data source module (11) for providing a numerical data set representing aspects of data to be interpreted; and a viewer module (12) responsive the numerical data for providing a view of the numerical dat set such as a fully immersive view or a more limited view, helpful to user in interpreting the numerical data set.

Abstract translation: 一种用于可视化来自数据源的数据的硬件适应性数据可视化工具（图2），包括用于提供表示要解释的数据的方面的数字数据集的数据源模块（11） 以及观察器模块（12），其响应于所述数值数据提供数字数据集的视图，例如完全沉浸式视图或更有限的视图，有助于用户解释数字数据集。

公开(公告)号：WO8903242A3

公开(公告)日：1989-05-18

申请号：PCT/US8803607

申请日：1988-10-14

Applicant: FUEL TECH INC

Inventor： EPPERLY WILLIAM ROBERT ,  SULLIVAN JAMES CHRISTOPHER ,  SPRAGUE BARRY NORMAND

IPC: B01D20060101 ,  B01D53/00 ,  B01D53/34 ,  B01D53/56 ,  C01B21/20 ,  C10L10/00

CPC classification number: B01D53/56 ,  B01J2219/00058

Abstract: A process is presented for the reduction of nitrogen oxides in the effluent from the combustion of a carbonaceous fuel. The process comprises introducing a treatment agent comprising a composition selected from the group consisting of NH4-lignosulfonate, calcium lignosulfonate, 2-furoic acid, 1,3 dioxolane, 1,4 dioxane, tetrahydrofuran, furfurylamine, furfurylalcohol, gluconic acid, citric acid, formic acid, n-butyl acetate, 1,3 butylene glycol, methylal, tetrahydrofuryl alcohol, furan, fish oil, coumalic acid, furfurylacetate, tetrahydrofuran, 2,3,4,5-tetracarboxylic acid, tetrahydrofurylamine, furylacrylic acid, tetrahydropyran, 2,5-furandimethanol, mannitol, hexamethylenediamine, barbituric acid, acetic anhydride, oxalic acid, mucic acid and d-galactose into an effluent under conditions effective to reduce the concentration of nitrogen oxides in the effluent.

公开(公告)号：WO1989002781A2

公开(公告)日：1989-04-06

申请号：PCT/US1988002751

申请日：1988-08-12

Applicant: FUEL TECH, INC. ,  EPPERLY, William, Robert ,  SULLIVAN, James, Christopher ,  SPRAGUE, Barry, Normand ,  O'LEARY, John, Henry

Inventor： FUEL TECH, INC.

IPC: B01D59/64

CPC classification number: B01D53/56 ,  B01J2219/00058

Abstract: A process for the reduction of nitrogen oxides in an effluent from the combustion of a carbonaceous fuel while minimizing the production of other pollutants is presented. The process comprises introducing (most commonly by injecting) a nitrogen oxides reducing treatment agent into an effluent according to a nitrogen oxides reducing treatment regimen under conditions such that the treatment agent is operating on the high temperature or right side of its nitrogen oxides reduction versus effluent temperature curve, especially on the high temperature or right side of the curve plateau.

Abstract translation: 提出了一种在将碳质燃料燃烧的污水中的氮氧化物还原，同时最小化其它污染物的产生的方法。 该方法包括在氮氧化物还原处理方案下将氮氧化物还原处理剂引入（最通常地将氮氧化物还原处理剂）注入流出物中，使得处理剂在其氮氧化物还原相对于流出物的高温或右侧 温度曲线，特别是在曲线高原的高温或右侧。

公开(公告)号：WO1988006569A1

公开(公告)日：1988-09-07

申请号：PCT/US1988000730

申请日：1988-03-04

Applicant: FUEL TECH, INC.

Inventor： FUEL TECH, INC. ,  EPPERLY, William, Robert ,  PETER-HOBLYN, Jeremy, Deeble ,  SULLIVAN, James, Christopher ,  SHULOF, George, Ferdinand, Jr.

IPC: C01B21/00

CPC classification number: B01D53/56 ,  B01D53/34 ,  B01D53/60 ,  Y02A50/2344 ,  Y02W10/37

Abstract: A process is presented for reducing the concentration of pollutants in an effluent from the combustion of a carbonaceous fuel. The process comprises injecting a first treatment agent into the effluent at a first temperature zone and injecting a second treatment agent into the effluent at a second temperature zone, wherein the first and second treatment agents are injected under conditions effective to reduce the effluent pollution index.

公开(公告)号：WO2021183604A1

公开(公告)日：2021-09-16

申请号：PCT/US2021/021635

申请日：2021-03-10

Applicant: FUEL TECH, INC.

Inventor： LAU, Ronald ,  RINGEL, Karen

IPC: B01F3/04 ,  B01F3/08 ,  B01F5/04

Abstract: Methods and apparatus that enable the efficient introduction of gases like air, oxygen and ozone into aqueous liquids. Gases are introduced into liquids for making that gas chemically or biologically available at a minimum energy expenditure. Impinging jets of liquid are directed into a pressurized saturation vessel having a gas-filled headspace and a saturation zone below the surface of the liquid at a velocity sufficient to create a turbulent impact and plunge zone. The resulting turbulence and mixing of gas and liquid in that zone under pressure causes the gas to be driven into the liquid in the vessel and breaks up the gas and the liquid into a churning flow and creates a large number of bubbles. The resulting gas-enriched liquid is discharged from the vessel at an outlet to ensure a minimum of bubbles in the gas-enriched liquid.

公开(公告)号：WO2017053499A1

公开(公告)日：2017-03-30

申请号：PCT/US2016/052989

申请日：2016-09-22

Applicant: FUEL TECH, INC.

Inventor： SARATOVSKY, Ian ,  BOHLEN, Scott, K. ,  SMYRNIOTIS, Christopher, R. ,  SCHULZ, Kent, W. ,  RIVERA, Emelito P.

IPC: B01D53/50 ,  B01D53/54 ,  B01D53/60 ,  B01D53/74 ,  C10L9/10 ,  C10L10/04 ,  F23G5/50

CPC classification number: F23J15/003 ,  B01D53/502 ,  B01D53/64 ,  B01D53/8609 ,  B01D53/8628 ,  B01D53/8631 ,  B01D2251/402 ,  B01D2255/2047 ,  B01D2257/302 ,  B01D2257/404 ,  B01D2257/602 ,  B01D2258/0283 ,  F23J7/00 ,  F23J15/04 ,  F23J2219/10 ,  F23J2219/50 ,  F23J2900/15004

Abstract: The description relates to a process for reducing acid plume from stacks from coal- fired combustors operating at varying loads, which have typically been treated by back-end calcium carbonate (limestone) which has not been able to effectively control visible acid plume as power is ramped up from low load. According to the process, as high sulfur and high iron coals are burned in a combustor, magnesium hydroxide slurry is introduced into hot combustion gases in or near the combustion zone. And, during ramp up to high load from a period of operation at low load, additional magnesium hydroxide is introduced into an intermediate-temperature zone.

Abstract translation: 该描述涉及一种用于从在不同负载下操作的燃煤燃烧器的堆叠中减少酸羽流的方法，其通常由后端碳酸钙（石灰石）处理，其功率不能有效控制可见酸羽流 从低负载增加。 根据该方法，由于在燃烧器中燃烧高硫和高铁煤，所以将氢氧化镁浆料引入燃烧区中或其附近的热燃烧气体中。 而且，在从低负荷运转期间到达高负载期间，将另外的氢氧化镁引入中温区。

公开(公告)号：WO2016033200A1

公开(公告)日：2016-03-03

申请号：PCT/US2015/046975

申请日：2015-08-26

Applicant: FUEL TECH, INC.

Inventor： GAVASKAR, Vasudeo, S.

IPC: B01D53/64

CPC classification number: C04B7/26 ,  B01D53/64 ,  B01D53/685 ,  B01D2253/112 ,  B01D2253/304 ,  B01D2257/2045 ,  B01D2257/602 ,  B01D2258/0283 ,  B01J20/043 ,  B01J20/223

Abstract: The description relates to production of fly ash with properties suitable for use in Portland cement. The fly ash compositions will contain coal ash, water-insoluble copper compositions and metallic mercury adsorbed onto ash particles. In one aspect, the coal ash composition will have a total mercury content of from 0.1 to 2.0 ppm and the water-soluble mercury is less than 20% of the total mercury content. The process entails combusting coal to produce hot combustion gases containing fly ash, C0 2 , chlorine, and mercury, cooling the combustion gases and introducing into the combustion gases at a temperature of less than 1000°F, preferably within the range of from about 250° to about 900°F, a copper-based chloride remediator (CBCR), and collecting the fly ash which comprises insoluble copper compositions and water insoluble mercury compositions.

Abstract translation: 该描述涉及具有适合用于波特兰水泥的性能的飞灰的生产。 飞灰组合物将含有煤灰，水不溶性铜组合物和吸附在灰尘颗粒上的金属汞。 一方面，煤灰组合物的总汞含量为0.1-2.0ppm，水溶性汞小于总汞含量的20％。 该过程需要燃烧煤以产生含有飞灰，CO 2，氯和汞的热燃烧气体，冷却燃烧气体并在低于1000°F的温度下优选在约250°F的温度下引入燃烧气体 至约900°F，铜基氯化物修复剂（CBCR），并收集包含不溶性铜组合物和水不溶性汞组合物的飞灰。

公开(公告)号：WO2010006325A1

公开(公告)日：2010-01-14

申请号：PCT/US2009/050354

申请日：2009-07-13

Applicant: FUEL TECH, INC. ,  SMYRNIOTIS, Christopher, R. ,  SCHULZ, Kent, W. ,  RIVERA, Emelito, P.

Inventor： SMYRNIOTIS, Christopher, R. ,  SCHULZ, Kent, W. ,  RIVERA, Emelito, P.

IPC: C10L10/00

CPC classification number: C10L10/06 ,  C10L10/04 ,  C10L2200/0213 ,  C10L2200/0218 ,  C10L2200/0254 ,  C10L2290/141 ,  C10L2290/18 ,  F23J7/00

Abstract: Disclosed is a process that increases the output of a combustor fired with coal having high iron and/or calcium content, by reducing the tendency of slag to form on heat exchange surfaces and changing the nature of the slag to make it easier to remove. The process includes combusting a slag-forming coal, having high iron and/or calcium content, with an overall excess of oxygen; moving the resulting combustion gases though heat exchange equipment under conditions which cause cooling of slag formed by burning the fuel; and prior to contact with said heat exchange equipment, introducing aqueous aluminum trihydroxide in amounts and with droplet sizes and concentrations effective to decrease the rate of fouling, and preferably, increase the friability of the resulting slag. Desirably, the aluminum trihydroxide reagent is introduced in the form of an aqueous liquid and computational fluid dynamics is employed to determine flow rates and select reagent introduction rates, reagent introduction location(s), reagent concentration, reagent droplet size and/or reagent momentum. In a preferred aspect, the feed rate will up to about 6 pounds ATH per ton and preferably with up to about 2 pounds Mg(OH)2 per ton of coal. A process is also provided for cleaning and maintaining cleanliness of a combustor.

Abstract translation: 公开了一种通过降低炉渣在热交换表面上形成的倾向并改变炉渣的性质以使其更容易去除而增加燃烧具有高铁和/或钙含量的煤燃烧的燃烧器的输出的方法。 该方法包括燃烧具有高铁和/或钙含量的成渣煤，其总量过氧; 在引起燃烧燃烧形成的炉渣冷却的条件下，通过热交换设备移动产生的燃烧气体; 并且在与所述热交换设备接触之前，引入氢氧化铝水溶液的量和液滴尺寸和浓度有效地降低结垢速率，并且优选地增加所得到的炉渣的脆性。 理想地，以水性液体的形式引入三氢氧化铝试剂，并且使用计算流体动力学来确定流速并选择试剂引入速率，试剂引入位置，试剂浓度，试剂液滴尺寸和/或试剂动量。 在优选的方面，进料速率将高达每吨约6磅ATH，优选每吨煤高达约2磅Mg（OH）2。 还提供了用于清洁和保持燃烧器清洁度的方法。