公开(公告)号：WO2016128615A1

公开(公告)日：2016-08-18

申请号：PCT/FI2016/050078

申请日：2016-02-08

Applicant: FORTUM OYJ

Inventor： DERNJATIN, Pauli ,  JUKOLA, Perttu ,  KALLIO, Sirpa

IPC: F23L1/02 ,  F23L9/02 ,  F23L9/04 ,  F23C10/00 ,  F23C10/20

CPC classification number: F23C10/002 ,  F23C10/20 ,  F23L1/02 ,  F23L9/02 ,  F23L9/04

Abstract: The current invention relates to a method for reducing NOx emissions in a circulating fluidized bed boiler (CFB boiler), the CFB boiler comprising a fur- nace, the furnace comprising a bottomand fluidizable bed material. The method com- prises feeding primary air from below through the bottom and the bed material into the furnace for fluidizing the bed material and entrapping at least a part of the bed material for circulating it in the furnace; feeding secondary air into the furnace at a height above the primary air feeding, for sub-stoichiometric com- bustion of fuel; and feeding fuel into the furnace at a height above the primary air feeding for combusting the fuel. The method is characterized in comprising feeding over-fire air (OFA) into the fur- nace at a height above the secondary air feeding, for super-stoichiometric combus- tion of the fuel.

Abstract translation: 本发明涉及一种用于减少循环流化床锅炉（CFB锅炉）中的NOx排放的方法，该CFB锅炉包括一个炉膛，该炉包括底部和可流化床料。 该方法包括将一次空气从下方通过底部和床料输送到炉中以使床料流化，并将至少一部分床料包裹在炉中使其循环; 在二次空气供给的高度上将二次空气送入炉中，用于亚化学计量燃料燃烧; 以及在燃烧燃料的高于一次空气供给的高度处将燃料供给到炉中。 该方法的特征在于包括在超过二次空气供给的高度处将过火空气（OFA）进料到炉中，以进行燃料的超化学计量燃烧。

公开(公告)号：WO2015040272A1

公开(公告)日：2015-03-26

申请号：PCT/FI2014/050688

申请日：2014-09-10

Applicant: OUTOTEC (FINLAND) OY

Inventor： PIENIMÄKI, Kari ,  AHOKAINEN, Tapio ,  HUGG, Eero ,  MIETTINEN, Elli ,  JÅFS, Mikael

IPC: F23L9/04 ,  F23J3/00 ,  F27D17/00 ,  F23J15/00

CPC classification number: F22B1/183 ,  F23J3/00 ,  F23J15/00 ,  F23J15/003 ,  F23L9/04 ,  F27D17/004

Abstract: The invention relates to a method and to an arrangement for treating process gas (8) flowing from a furnace space of a pyrometallurgical furnace (1; la) into a waste heat boiler (2) that is in fluid communication with the furnace space of the pyrometallurgical furnace (1; la) at a connecting aperture (6). The method comprises providing the region of the connecting aperture (6) between the furnace space of the pyrometallurgical furnace (1; la) and the waste heat boiler (2) with a gas blowing means (7) for blowing gas into process gas (8) flowing from the furnace space of the pyrometallurgical furnace (1; la) into the waste heat boiler (2), and blowing gas with the gas blowing means (7) into process gas (8) flowing from the furnace space of the pyrometallurgical furnace (1; la) into the waste heat boiler (2).

Abstract translation: 本发明涉及一种处理工艺气体（8）的方法和装置，该工艺气体（8）从火法冶金炉（1; 1a）的炉膛空间流入废热锅炉（2），废热锅炉与炉膛 火法冶金炉（1; 1a）在连接孔（6）处。 该方法包括在气化炉（1; 1a）的炉空间和废热锅炉（2）之间提供连接孔（6）的区域，其中气体吹送装置（7）用于将气体吹入工艺气体（8 ）从火法冶炼炉（1; 1a）的炉内空间流入废热锅炉（2），并将气体吹入装置（7）吹入从火法冶金炉的炉内空气流出的工艺气体（8） （1; 1a）进入废热锅炉（2）。

公开(公告)号：WO01094843A1

公开(公告)日：2001-12-13

申请号：PCT/US2001/017786

申请日：2001-06-01

IPC: F23C1/02 ,  F23C5/32 ,  F23C6/04 ,  F23C7/00 ,  F23C9/00 ,  F23G5/00 ,  F23J7/00 ,  F23L7/00 ,  F23L9/02 ,  F23L9/04 ,  F23L15/00

CPC classification number: F23C6/04 ,  F23C1/02 ,  F23C5/32 ,  F23C6/045 ,  F23C7/006 ,  F23C9/006 ,  F23C2201/10 ,  F23C2201/20 ,  F23C2900/99004 ,  F23G5/008 ,  F23J7/00 ,  F23K2201/501 ,  F23K2201/505 ,  F23L7/002 ,  F23L9/04 ,  F23L15/00 ,  Y02E20/348

Abstract: A method and apparatus for reducing NOx emissions from the combustion of carbonaceous fuels using three stages of oxidation and second stage in-situ furnace flue gas recirculation. In the first stage, a partial oxidation combustor is used to partially combust the fuel in the presence of heated combustion air. The fuel gas produced in the partial oxidation process is passed to a second stage partial oxidation combustor while molten slag is removed and disposed of. A second preheated combustion air is introduced into the second stage combustor to produce a reducing flue gas and is injected into the furnace in such a way as to create the desired in-situ furnace flue gas recirculation. A third combustion air is mixed with the flue gas in a third stage of combustion to substantially complete the combustion process. Preheated steam may be added to the first or second stages of combustion.

Abstract translation: 一种用于通过三级氧化和二级原位炉烟道气再循环来减少来自含碳燃料的燃烧的NOx排放的方法和装置。 在第一阶段，使用部分氧化燃烧器在存在加热的燃烧空气的情况下部分地燃烧燃料。 在部分氧化过程中产生的燃料气体被移动到第二级部分氧化燃烧器，同时除去和处理熔渣。 将第二预热的燃烧空气引入第二级燃烧器中以产生还原烟道气，并以这样的方式注入炉中，以便产生所需的原位炉烟道气再循环。 第三燃烧空气在燃烧的第三阶段与废气混合以基本完成燃烧过程。 可以将预热蒸汽加入第一或第二燃烧阶段。

公开(公告)号：WO2021121663A1

公开(公告)日：2021-06-24

申请号：PCT/EP2020/025586

申请日：2020-12-17

Applicant: LINDE GMBH

Inventor： EKMAN, Tomas ,  RITZÉN, Ola ,  MUREN, David

IPC: F23C6/04 ,  F23C7/02 ,  F23L7/00 ,  F23L9/04 ,  F27B9/20 ,  F27B9/30 ,  F27B9/36 ,  F27D99/00 ,  F23D14/32 ,  F23N5/10 ,  F27D19/00 ,  F23C2900/06041 ,  F23N5/102 ,  F27D99/0033

Abstract: Method for heating a furnace (100, 600) with a longitudinal direction (D) and a cross plane (C) which is perpendicular to the longitudinal direction (D), which furnace (100, 600) is arranged with at least one heating zone (120,130,140) which is heated using combustion of a fuel with an oxidant, and which furnace (100, 600) is further arranged with a dark zone (110) downstream of said heated zone (120,130,140), to which dark zone (110) no fuel is supplied directly. The invention is characterised in that the fuel and oxidant supplied to the heating zone (120,130,140) is substoichiometric, in that between 10% and 40% of the total oxidant for achieving stoichiometric or near stoichiometric combustion is sup-plied directly to the dark zone (110), in that a flue gas temperature is measured in and/or downstream of the dark zone (110), and in that the share of the total oxidant supplied to the dark zone (110) is controlled so as not to exceed a predetermined maximum measured such temperature. The invention further relates to a method for retrofitting an existing furnace, and also to a furnace.

公开(公告)号：WO2012094100A3

公开(公告)日：2012-07-12

申请号：PCT/US2011/064350

申请日：2011-12-12

Applicant: SIEMENS ENERGY, INC. ,  SHAN, Jiefeng ,  KAUSHANSKY, Sergey

Inventor： SHAN, Jiefeng ,  KAUSHANSKY, Sergey

IPC: F23C7/00 ,  F23C6/04 ,  F23L9/04

Abstract: A combustor assembly in a coal burning power plant includes a combustor housing that defines a combustion zone in which pulverized coal is burned, at least one burner that introduces pulverized coal into the combustion zone, and an overfire air port that injects air into the combustor housing above the combustion zone, the overfire air port being generally not movable with respect to the combustor housing. The combustor assembly further includes a nozzle assembly associated with the overfire air port. The nozzle assembly includes a flow directing structure disposed within the overfire air port, which flow directing structure is tiltable with respect to the overfire air port to effect a change in a flow direction of the air being injected into the combustor housing through the overfire air port.

公开(公告)号：WO2005111499A1

公开(公告)日：2005-11-24

申请号：PCT/KR2005/001408

申请日：2005-05-13

Applicant: LG CHEM, LTD. ,  IM, Ye-Hoon ,  KIM, In-Seon ,  HAN, Sang-Phil

Inventor： IM, Ye-Hoon ,  KIM, In-Seon ,  HAN, Sang-Phil

IPC: F23L9/04

CPC classification number: F26B21/004 ,  F26B13/10

Abstract: A treater oven for drying a prepreg includes: a pipe conduit configured such that the prepreg is able to pass therethrough; a the first structure connected to one side of the pipe conduit and supplying heated air to the pipe conduit; and the second structure connected to the other side of the pipe conduit and discharging the heated air from the pipe conduit. The first structure includes: an air supply portion connected to a heat exchanger and supplying the heated air; an air distribution discharge portion discharging the heated air supplied from the air supply portion through a pair of discharging outlets in both sides of the prepreg; and at least one perforated plate symmetrically disposed in air passageways of the air distribution discharge portion.

Abstract translation: 用于干燥预浸料的处理炉包括：管道导管，其构造成使得预浸料坯能够通过; 第一结构，其连接到管道的一侧并将加热的空气供应到管道; 并且第二结构连接到管道的另一侧并且从管道管排出加热的空气。 第一结构包括：连接到热交换器并供应加热的空气的空气供应部分; 空气分配排出部分通过预浸料坯两侧的一对排出口排出从空气供应部分供应的加热空气; 以及对称地设置在空气分配排出部的空气通道中的至少一个多孔板。

公开(公告)号：WO02033317A1

公开(公告)日：2002-04-25

申请号：PCT/EP2001/012029

申请日：2001-10-17

IPC: F23G5/00 ,  B01J23/745 ,  F23C6/04 ,  F23C13/00 ,  F23C99/00 ,  F23G5/027 ,  F23G5/16 ,  F23G5/50 ,  F23L7/00 ,  F23L9/04

CPC classification number: F23G5/027 ,  F23C6/045 ,  F23C2900/06041 ,  F23G5/50 ,  F23G2900/00001 ,  F23L7/005 ,  F23L9/04

Abstract: The invention relates to a method for the combustion of solid, even non-homogeneous, fuel in a furnace. Said method comprises the following steps: (a) solid fuel is subjected to combustion, partial combustion or gasification in the combustion chamber, in an oxygen atmosphere below stoichiometric conditions, (b) additional oxygen is supplied to the combustion space in the transition region between the combustion chamber and the furnace or the freeboard, in a quantity above stoichiometric conditions, and (e) a catalyst is added in order to improve or accelerate the reactions in the region to which the quantity of oxygen above stoichiometric conditions is also supplied, or in a succeeding area.

Abstract translation: 本发明涉及一种用于在燃烧设备的燃烧甚至不均匀，固体燃料的方法，包括以下步骤：（a）燃烧，在下亚化学计量Sauerstoffatomosphäre燃烧室部分燃烧或固体燃料的气化，（b）将在所述附加的氧 燃烧室在从燃烧室至燃烧腔室或上部空间区的过渡区在比化学计量的量，以及（e）将用于改善或加速，其中氧的上述化学计量的量被提供，或者在随后的区域中的区域所进行的反应的催化剂的大。

公开(公告)号：WO01046620A1

公开(公告)日：2001-06-28

申请号：PCT/NZ2000/000255

申请日：2000-12-21

IPC: F23G5/32 ,  F23G5/38 ,  F23G5/44 ,  F23G5/50 ,  F23L1/02 ,  F23L9/04 ,  F23G5/00 ,  F23G5/24 ,  F23G5/28 ,  F23G5/46

CPC classification number: F23L9/04 ,  F23G5/32 ,  F23G5/38 ,  F23G5/44 ,  F23G5/50 ,  F23G2203/803 ,  F23G2206/203 ,  F23G2207/101 ,  F23G2207/114 ,  F23G2207/30 ,  F23G2900/50009 ,  F23G2900/53801 ,  F23L1/02 ,  Y02E20/12

Abstract: This invention relates to a waste incinerator, a method of controlling the combustion in a waste incinerator for power generation, and a waste-to-energy facility. The incinerator provides for ultra high temperature combustion, with the average temperature of gases maintained at or above 1100 DEG C for at least five seconds. The construction of the hearth and its underfire air holes, the provision of a mechanism for the controlled removal of ash with minimum disruption of the combustion bed, the inclusion of an overfire air supply through nozzles producing spaced-apart contra-rotating air flows, and control means to monitor the combustion bed and conditions in the upper zone of the incinerator, enable variation of the energy output from the incinerator by plus or minus at least 20 %. The retention of the combustion gases at a high temperature for a long period in the incinerator enables sulphur scrubbing to be carried out, at least partially, in the incinerator, which in turn reduces corrosion problems downstream. A waste-to-energy facility of the invention includes a plurality of modules, each module including an incinerator, a labyrinth, a boiler, an economiser, an acid gas scrubber and a bag house, at least some of these being themselves modular and replaceable on a rail system. In a preferred form the waste-to-energy facility may include two plants, each of six waste-to-energy modules. An integrated control system for the facility enables the maintenance of a reliable energy output as well as a secure capacity for handling a particular volume of waste material.

Abstract translation: 本发明涉及一种废物焚烧炉，一种控制用于发电的垃圾焚烧炉中的燃烧的方法和一种废物能源设施。 焚烧炉提供超高温燃烧，气体的平均温度保持在1100℃以上至少5秒钟。 炉壁及其欠火孔的结构，提供了用于以最小的燃烧床破坏来控制去除灰分的机构，通过产生间隔开的反转空气流的喷嘴包括过热空气供应，以及 用于监测燃烧床和焚烧炉上部区域中的状况的控制装置使得能够从焚烧炉输出的能量的变化加减至少20％。 在焚烧炉中长时间保持燃烧气体在高温下能够至少部分地在焚烧炉中进行硫洗涤，这又降低了下游的腐蚀问题。 本发明的废物能源设施包括多个模块，每个模块包括焚烧炉，迷宫式，锅炉，节能器，酸性气体洗涤器和袋子房屋，其中至少一些本身是模块化和可更换的 在铁路系统上 在优选形式中，废物到能量设施可以包括两个工厂，每个废物到能量模块中的每一个。 该设施的集成控制系统能够维持可靠的能量输出以及处理特定体积的废料的安全容量。

公开(公告)号：WO00032988A1

公开(公告)日：2000-06-08

申请号：PCT/SE1999/002111

申请日：1999-11-18

IPC: F23C6/04 ,  F23G1/00 ,  F23G5/16 ,  F23G7/06 ,  F23L9/04 ,  F23B5/04

CPC classification number: F23B5/04 ,  F23G1/00 ,  F23G5/165 ,  F23G7/06 ,  F23L9/04

Abstract: A reactor for aftercombustion of combustion gases resulting from a combustion of a fuel comprising an aftercombustion chamber (1) with an inlet (4) for receiving hot combustion gases and an outlet (28) for gases resulting from the aftercombustion in the chamber. The reactor has an arrangement adapted to prolong the residence time of the combustion gases in the aftercombustion chamber, and this arrangement has members (16-19) arranged to influence the combustion gases to form centripetal vortexes for entering the chamber through the inlet in the form of such vortexes for prolonging said residence time.

Abstract translation: 一种用于燃烧燃烧产生的燃烧气体的反应器，其包括具有用于接收热燃烧气体的入口（4）的后燃烧室（1）和用于在所述室中后燃烧产生的气体的出口（28）的燃料。 反应器具有适于延长燃烧气体在后燃室中的停留时间的布置，并且这种布置具有布置成影响燃烧气体的构件（16-19），以形成向心涡流，用于以形式通过入口进入腔室 的这种涡流以延长所述停留时间。

公开(公告)号：WO2011156203A3

公开(公告)日：2013-05-02

申请号：PCT/US2011038941

申请日：2011-06-02

Applicant: GEN ELECTRIC ,  XU GUANG ,  WIDMER NEIL COLIN

Inventor： XU GUANG ,  WIDMER NEIL COLIN

IPC: F23C5/32 ,  F23C6/04 ,  F23L9/04 ,  F23N3/00 ,  F23N5/00

CPC classification number: F23C5/32 ,  F23C6/045 ,  F23C2201/101 ,  F23L7/007 ,  F23L9/04 ,  F23N3/002 ,  F23N5/003 ,  F23N2037/16 ,  F23N2041/10 ,  F23N2900/05001 ,  Y02E20/344

Abstract: A method of optimizing operation of a furnace to control emission within a system. Each furnace zone inside of the furnace is associated with at least one exhaust zone. A signal indicative of an amount of byproduct exiting the furnace through at least one of the exhaust zones is received from one or more of the sensors. Based on this signal, an offending furnace zone is identified from among the plurality of furnace zones, the offending furnace zone including an oxygen level contributing to the amount of the byproduct. A relative adjustment of at least one of an amount of oxygen being introduced into the offending furnace zone, and an angular orientation of an oxygen injector introducing oxygen into the offending furnace zone relative to a focal region within the furnace can be initiated. The furnace may have structure to perform the method and may be part of a system.

Abstract translation: 一种优化炉的操作以控制系统内的排放的方法。 炉内的每个炉区与至少一个排气区相连。 从一个或多个传感器接收指示通过至少一个排气区离开炉子的副产物的量的信号。 基于该信号，从多个炉区中识别出违规的炉区，违规炉区包括有助于副产物量的氧水平。 可以开始相对调节引入到有害炉区域中的氧气量中的至少一种，以及相对于炉内焦点区域将氧气引入入侵炉区域的氧气注入器的角度定向。 炉子可以具有执行该方法的结构，并且可以是系统的一部分。