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EP3049175A2 - Procédés de traitement de flux de gaz de combustion issus de processus d'incinération - Google Patents

Procédés de traitement de flux de gaz de combustion issus de processus d'incinération

Info

Publication number
EP3049175A2
EP3049175A2 EP14846753.3A EP14846753A EP3049175A2 EP 3049175 A2 EP3049175 A2 EP 3049175A2 EP 14846753 A EP14846753 A EP 14846753A EP 3049175 A2 EP3049175 A2 EP 3049175A2
Authority
EP
European Patent Office
Prior art keywords
gas stream
waste gas
combustion
ozone
nitrogen oxides
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP14846753.3A
Other languages
German (de)
English (en)
Inventor
Naresh J. Suchak
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Linde GmbH
Original Assignee
Linde GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Linde GmbH filed Critical Linde GmbH
Priority claimed from PCT/IB2014/003161 external-priority patent/WO2015071772A2/fr
Publication of EP3049175A2 publication Critical patent/EP3049175A2/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J15/00—Arrangements of devices for treating smoke or fumes
    • F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/46—Removing components of defined structure
    • B01D53/54—Nitrogen compounds
    • B01D53/56—Nitrogen oxides
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/34—Chemical or biological purification of waste gases
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/76—Gas phase processes, e.g. by using aerosols
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2251/00—Reactants
    • B01D2251/10—Oxidants
    • B01D2251/104—Ozone
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • B01D2258/0291—Flue gases from waste incineration plants
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2259/00—Type of treatment
    • B01D2259/12—Methods and means for introducing reactants
    • B01D2259/122—Gaseous reactants
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2215/00—Preventing emissions
    • F23J2215/10—Nitrogen; Compounds thereof
    • F23J2215/101—Nitrous oxide (N2O)
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/10—Catalytic reduction devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES 
    • F23J2219/00—Treatment devices
    • F23J2219/80—Quenching
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Definitions

  • the invention relates to the incineration of waste and the removal of contaminants such as nitrogen oxides, sulfur oxides, particulates, acid gas, heavy metals and organic toxins that result from the incineration.
  • the invention advantageously combines enriching the air used in combustion with gaseous oxygen in the incineration process while using ozone to oxidize contaminants found in the combustion waste gas stream.
  • Oxygen enrichment can improve both the thermal destruction of waste as well as increase throughput.
  • oxygen enrichment is well known to increase nitrogen oxides formation in combustion processes.
  • Ozone injection into an Air Pollution Control (APC) system for treating incineration exhaust enables effective nitrogen oxides removal along with other contaminants.
  • APC Air Pollution Control
  • the chemistry of nitrogen oxides oxidation with ozone is described in a number of patents such as US Pat No. 5,206,002; 5,985,223; 6,182,409; 6,649,132; and 7,303,735.
  • Ammonia may be injected to lower nitrogen oxides by the SNCR (selective non catalytic reduction) method.
  • a higher end method for controlling nitrogen oxides for combusting processes is SCR (selective catalytic reduction), This is not a preferred method for treating incineration exhaust due to a variety of reasons including expensive capital costs and energy intensive configurations required to offer sustainable performance,
  • Incineration processes are under increased scrutiny due to concern about public health and the environment and will require superior flue gas cleanup before emission into the atmosphere particularly when throughput is enhanced.
  • the invention combines oxygen enrichment with ozone based control of contaminants. This process will allow for a higher throughput of waste gas streams emanating from the incineration unit while also lowering the emission of contaminants to the atmosphere.
  • the oxygen requirement is a small increment of what is required for oxygen enrichment and can be delivered from the same oxygen supply system as that which supplies the ozone generator.
  • the oxygen enrichment and ozone based nitrogen oxides removal offers the ability to debottleneck the incineration process at minimal capita! investment; with the least interruption to production activity; involves minimal changes in processing equipment; provides robust and superior nitrogen oxides removal while reducing the unit cost of the waste disposed of.
  • a method for removing contaminants from a gas stream exiting an incineration device comprising the steps: a) Feeding waste, fuel and an air supply to a combustion chamber in the incineration device; b) Feeding oxygen to a mixture of the waste, fuel and air supply; c) Combusting the mixture thereby forming a combustion waste gas stream containing contaminants; d) Feeding the combustion waste gas stream to a quench unit; whereby the combustion waste gas stream is reduced in temperature; e) Feeding the combustion waste gas stream to a reaction zone; f) Feeding ozone to the reaction zone whereby the ozone and combustion waste gas stream remain in contact for a predetermined period of time: and g) Feeding the combustion waste gas stream to a scrubber, wherein the contaminants are removed.
  • a method for removing contaminants from a gas stream exiting an incineration device comprising the steps: a) Feeding waste to a combustion chamber of an incineration device; b) Injecting air for supporting combustion into the incineration device; c) Supplying gaseous oxygen to the incineration device: d) Incinerating the waste thereby forming a combustion waste gas stream containing contaminants; e) Feeding the combustion waste gas stream to a quench unit; whereby the combustion waste gas stream is reduced in temperature; f) Feeding the combustion waste gas stream to a reaction zone; g) Feeding ozone to the reaction zone whereby the ozone and combustion waste gas stream remain in contact for a predetermined period of time; and h) Feeding the combustion waste gas stream to a scrubber, wherein the contaminants are removed.
  • steps f) and g) can be reversed and the combustion waste gas stream is scrubbed before it is contacted with the ozone in a reaction zone.
  • the resultant combustion waste gas stream is then fed to a device selected from the group consisting of an electrostatic precipitator and a bag house, in the alternative embodiment, steps g) and h) would be reverse whereby the combustion waste gas stream is scrubbed before contacting the ozone in the reaction zone.
  • the waste that is incinerated is typically industrial waste, chemical waste and hazardous waste.
  • the fuel that is employed in the incineration is typically coal or oil
  • the contaminants are primarily nitrogen oxides but can also include sulfur oxides, mercury and acid gases.
  • the nitrogen oxides are selected from the group consisting of thermal, prompt and fuel type nitrogen oxides,
  • the oxygen that is fed to the incineration unit is typically pure oxygen.
  • the oxygen will be fed in an amount in excess of the stoichiometry necessary to maintain combustion in the incineration unit.
  • the combustion waste gas stream containing the contaminants leaves the incineration unit and can optionally be fed first to a waste heat boiler.
  • a portion of the oxygen that is generated is fed to an ozone generation unit thereby producing a mixture of ozone and oxygen.
  • the ozone when it contacts the contaminants notably nitrogen oxides in the reaction zone will form higher oxides of nitrogen oxides
  • the amount of ozone added to the combustion waste gas stream is controlled by measuring the amount of nitrogen oxides and ozone present in the combustion waste gas stream.
  • the oxygen that is fed to the incineration unit can be fed by injecting into the air that is being added along with the fuel and waste to be combusted.
  • the oxygen can be fed directly into the incineration unit by injection,
  • a pressure swing adsorption (PSA) system may be employed to separate the ozone from the oxygen and ozone stream mixture that emanates from the ozone generation unit.
  • the separated ozone can be fed to the reaction zone points for oxidizing the nitrogen oxides present in the waste stream from the incineration unit.
  • the oxygen that is separated from the combined stream can be recycled back to the incineration unit for oxygen enrichment therein.
  • Figure 1 is a schematic of a nitrogen oxides removal system in a waste incineration system.
  • Figure 2 is a schematic of a nitrogen oxides removal system in a waste incineration system with an incinerator having two zones after combustion.
  • Figure 3 is a graph depicting nitrogen oxides concentration of the gas stream exiting the incinerator versus the amount of oxygen enrichment.
  • FIG. 1 is a schematic of an incineration system with nitrogen oxides control. Waste containing contaminants is fed to an incinerator C combustion zone along with fuel and air through lines 7 and 9 respectively to the burners in the incinerator.
  • the primary air 9 is enriched with oxygen from an oxygen source A through line 3 and fed to the incinerator C where it will improve combustion. Oxygen that is contained in the enriched air is maintained in excess of the stoichiometric requirement to completely burn the fuel and the combustibles in the waste.
  • Nitrogen oxides formed during combustion are thermal, prompt and fuel nitrogen oxides.
  • Thermal nitrogen oxides are nitrogen oxides formed through high temperature oxidation of the diatomic nitrogen found in combustion air.
  • Prompt nitrogen oxides are the source of nitrogen oxides attributed to the reaction of atmospheric nitrogen with radicals such as C, CH, and CH 2 fragments derived from fuel, where this cannot be explained by either the thermal or fuel processes.
  • Fuel nitrogen oxides are the major source of nitrogen oxides produced from nitrogen-bearing fuels such as certain coals and oil by the conversion of fuel bound nitrogen to nitrogen oxides during combustion.
  • the nitrogen bound in the fuel is released as a free radical and ultimately forms free nitrogen or NO.
  • Nitrogenous compounds in the waste stream 8 also form additional nitrogen oxides during combustion.
  • the combustion products containing gas stream is maintained at the required temperature for a predetermined period of time in the incinerator furnace C, In order to increase throughput of the waste in the incinerator C, some of the primary air in line 9 is replaced with oxygen from line 3, keeping the total volume of the gas within design flow. Oxygen enrichment will often result in an increase in flame temperature. The higher flame temperature due to oxygen enrichment will improve waste destruction efficiency but will cause an increase in thermal nitrogen oxides formation.
  • a slip stream of oxygen 2 from the combustion enrichment supply of oxygen A is diverted to an ozone generator B where oxygen is converted to up to 10 weight percent ozone in oxygen.
  • the ozone generator will typically be a corona discharge device for forming ozone.
  • the combustion waste gas stream exiting the incinerator C containing the combustion products is fed optionally to a waste heat boiler D through line 10 to recover heat and is then fed through line 1 1 to a quench unit E where it will be quenched with an aqueous solution.
  • the cooling and quenching is carried out to minimize the formation of further contaminants such as PCBs, dioxins and furans.
  • ozone is injected through line 5 into the quenched gas stream 12 upstream of a dry or wet scrubber F.
  • nitrogen oxides are oxidized to higher oxides, preferably the pentavalent form, N2O5.
  • the pentavalent form of nitrogen oxide is quite soluble in aqueous solutions.
  • the quenched stream is saturated with water vapor and will convert the oxidized nitrogen oxides into stable oxyacids such as nitric acid which will mix with wafer in ail proportions and be captured in a wet scrubbing operation F.
  • Nitric acid and the oxidized nitrogen oxides are also very reactive and almost entirely retained by commonly used adsorbents in the dry scrubber.
  • nitrogen oxides are oxidized downstream of the wet or dry scrubber F.
  • the ozone that is produced in the ozone generator B is fed through line 4 to a reaction zone 13 between the wet or dry scrubber F and the wet electrostatic precipitator or bag house G.
  • This option allows for segregating nitrogen oxides removal from the removal of other pollutants in the dry or wet scrubber F.
  • the oxidized scrubber components are captured in the wet electrostatic precipitator G downstream of the wet scrubber F or in a bag house G which for purposes of illustration is alternatively located downstream of the wet or dry scrubber F.
  • the thus treated combustion waste gas stream free of contaminants is discharged to the atmosphere through line 14.
  • the oxygen stream flowing from the oxygen supply A is typically in amounts ranging from one fourth to one fiftieth the amount of oxygen used in enrichment.
  • the ozone is mixed into the gas stream which is at a temperature of about 25T (-4°C) to 325°F (163°C).
  • the ozone is produced in the ozone generator B in an amount up to 10 weight percent ozone to oxygen.
  • the ozone to nitrogen oxide mole ratio is maintained between 0.5 and 1.5 for nitrogen oxides removal.
  • Figure 2 depicts a different embodiment of the invention. Like components, lines and unit operations are given the same number and letter designations as those given for Figure 1.
  • the incinerator unit C has two zones after combustion, namely a reducing zone C1 and an oxidizing zone C2.
  • the oxygen contained in the enriched air is maintained near the stoichiometric requirement to burn the fuel and the combustibles in the gas stream. By not maintaining an excess of oxygen during combustion, significant amounts of carbon monoxide will be formed in the combustion product stream.
  • the nitrogen oxides formed are thermal, prompt and fuel nitrogen oxides. Nitrogenous compounds in the waste stream also form additional nitrogen oxides during combustion. Due to oxygen enrichment, the amount of thermal nitrogen oxides sharply rises.
  • a reducing zone C1 Downstream of combustion, but still within the incinerator unit C the gases are retained for a predetermined time in a reducing zone C1 .
  • the high concentration of carbon monoxide present in the combustion product due to the lack of excess oxygen reduces an appreciable amount of nitrogen oxides to nitrogen.
  • the reducing zone C1 is followed by an oxidizing zone C2 where supplementary or secondary air from line 3A which can be optionally enriched with oxygen 3 from the oxygen source A is mixed with or without supplemental fuel.
  • the excess oxygen enables rapid conversion of carbon monoxide to carbon dioxide.
  • the low nitrogen oxides burner and combustion staging lowers nitrogen oxides formation which in turn will require even smaller doses of ozone. As such, some of the nitrogen oxides formed is reduced in the incinerator unit C itself thereby alleviating the ozone requirement for nitrogen oxides removal in the downstream equipment as depicted in Figure 1.
  • the combustion waste gas stream exiting the incinerator containing the combustion products and contaminants is routed to an optional waste heat boiler D through line 10 to recover heat and then quenched with an aqueous solution after being fed through line 1 1 to a quench unit E.
  • the cooling and quenching will be carried out fairly rapidly to minimize the formation of air toxins or contaminants such as PCBs, dioxins and furans.
  • option 1 is to inject ozone from the ozone generator upstream of a dry or a wet scrubber F in a reaction zone 12 and allow it to thoroughly mix with the quenched gas stream being fed from the quench unit E.
  • the nitrogen oxides present in the quenched combustion waste gas stream will be oxidized by the ozone to higher oxides of nitrogen, preferably to the pentavalent form (N 2 Og).
  • the operator can control the retention time for example in the reaction zone 12 to allow for enough time for the reactions to occur.
  • the pentava!ent form of nitrogen oxides is extremely so!Lsbie in water.
  • the quenched combustion waste gas stream is saturated with water vapor and will convert the oxidized nitrogen oxides into stabie oxyacids such as nitric acid which mixes with water in all proportions and is captured in wet scrubbing operations.
  • stabie oxyacids such as nitric acid which mixes with water in all proportions and is captured in wet scrubbing operations.
  • Nitric acid and oxidized nitrogen oxides are also very reactive can be retained by commonly used adsorbents in dry scrubbing operations.
  • the quenched gas stream is fed to the dry or web scrubber F where other contaminants that are present in the quenched gas stream are removed before the nitrogen oxides are.
  • the gas stream that leaves the dry or the wet scrubber will not be free of contaminants such as particulates, sulfur oxides, mercury and other contaminants will be fed to a reaction zone 13 that is situated before a wet electrostatic precipitator or alternatively a baghouse G.
  • the ozone from the ozone generator will be fed to this reaction zone where it will contact the gas stream from the dry or wet scrubber F and be retained there for a sufficient amount of time for the ozone to oxidize the nitrogen oxides to the higher oxides of nitrogen and nitric acid as may be present in the gas stream.
  • the gas stream containing the higher oxides of nitrogen and nitric acid will be fed wet electrostatic precipitator or alternatively a bag house G.
  • the wet electrostatic precipitator (ESP or WESP) G will remove any particulates and other contaminants such as the higher oxides of nitrogen and nitric acid present in the gas stream.
  • the baghouse G will also remove these contaminants.
  • the oxygen stream 3 flowing from the oxygen supply unit A is typically in amounts ranging from one fourth to one fiftieth the amount of oxygen used in enrichment.
  • the ozone is mixed into the gas stream which is at a temperature of about 25T (-4°C) to 325T (163°C).
  • the ozone is produced in the ozone generator B in an amount up to 10 weight percent ozone to oxygen.
  • the ozone to nitrogen oxide mole ratio is maintained between 0.5 and 1 .5 for nitrogen oxides removal.
  • the waste being fed to the incinerator unit C will have a higher water content and less combustible material content. These situations will substantially reduce throughput as the capacity or volume of liquid waste that can be handled will diminish due to the increases in fuel required. Oxygen enrichment integrated with ozone based nitrogen oxides removal will operate to provide normal throughput while addressing the concerns of the contaminants present in the gas stream leaving the incinerator.
  • Figure 3 is a graph depicting the rise in nitrogen oxides concentration of a gas stream leaving the incinerator versus the amount of oxygen enrichment in the feed gas being fed to the incinerator.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • General Chemical & Material Sciences (AREA)
  • Biomedical Technology (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Treating Waste Gases (AREA)

Abstract

L'invention concerne un procédé d'élimination de polluants des gaz de combustion générés par l'incinération de déchets. De l'air est injecté dans un dispositif d'incinération conjointement avec un combustible et est enrichi par une alimentation en oxygène. Le flux de gaz perdus de combustion obtenu contient des polluants tels que des oxydes d'azote et est refroidi puis envoyé dans une zone de réaction dans laquelle il entre en contact avec de l'ozone pour une durée prédéfinie. Le flux de gaz perdus de combustion ainsi traité peut être envoyé dans un ensemble épurateur dans lequel les produits de réaction formés par la réaction de l'ozone et des polluants sont éliminés.
EP14846753.3A 2013-09-25 2014-09-25 Procédés de traitement de flux de gaz de combustion issus de processus d'incinération Withdrawn EP3049175A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US201361882280P 2013-09-25 2013-09-25
PCT/IB2014/003161 WO2015071772A2 (fr) 2013-09-25 2014-09-25 Procédés de traitement de flux de gaz de combustion issus de processus d'incinération

Publications (1)

Publication Number Publication Date
EP3049175A2 true EP3049175A2 (fr) 2016-08-03

Family

ID=55888352

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14846753.3A Withdrawn EP3049175A2 (fr) 2013-09-25 2014-09-25 Procédés de traitement de flux de gaz de combustion issus de processus d'incinération

Country Status (2)

Country Link
EP (1) EP3049175A2 (fr)
CN (1) CN105579116A (fr)

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Publication number Priority date Publication date Assignee Title
CN108744843A (zh) * 2018-05-30 2018-11-06 四川建源节能科技有限公司 一种空气净化系统中快速除臭氧工艺

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US5213492A (en) * 1991-02-11 1993-05-25 Praxair Technology, Inc. Combustion method for simultaneous control of nitrogen oxides and products of incomplete combustion
US6117403A (en) * 1996-10-09 2000-09-12 Zero Emissions Technology Inc. Barrier discharge conversion of Hg, SO2 and NOx
US7303735B2 (en) * 2003-10-17 2007-12-04 The Boc Group, Inc. Process for the removal of contaminants from gas streams
CN2682293Y (zh) * 2004-01-05 2005-03-02 中国辐射防护研究院 医疗废物热解焚烧处理装置
US7964166B2 (en) * 2007-01-23 2011-06-21 Linde Aktiengesellschaft Process for removing contaminants from gas streams
CN101285577A (zh) * 2007-04-12 2008-10-15 清华大学 一种用于回转窑气控式医疗废物焚烧工艺及其装置
KR101725789B1 (ko) * 2009-04-17 2017-04-11 프로테르고 인코포레이션 유기성 폐기물의 가스화 방법 및 장치
NL2007381C2 (en) * 2011-09-09 2013-03-12 Duiker Comb Engineers B V A process for incinerating nh3 and a nh3 incinerator.
CN103170225A (zh) * 2013-03-01 2013-06-26 大连易世达新能源发展股份有限公司 一种实现工业窑炉富氧助燃与烟气脱硫脱硝相结合系统
CN103263832A (zh) * 2013-03-22 2013-08-28 黄世鲜 锅炉完全燃烧脱炭和烟气脱硫脱硝除尘的方法和系统

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