CN106594717B - A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides - Google Patents

A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides Download PDF

Info

Publication number
CN106594717B
CN106594717B CN201611146899.3A CN201611146899A CN106594717B CN 106594717 B CN106594717 B CN 106594717B CN 201611146899 A CN201611146899 A CN 201611146899A CN 106594717 B CN106594717 B CN 106594717B
Authority
CN
China
Prior art keywords
burning
wind
regenerator
main
pipe
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.)
Expired - Fee Related
Application number
CN201611146899.3A
Other languages
Chinese (zh)
Other versions
CN106594717A (en
Inventor
巩志强
王振波
朱丽云
孙治谦
蒋文春
李强
刘兆增
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.)
China University of Petroleum East China
Original Assignee
China University of Petroleum East China
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 China University of Petroleum East China filed Critical China University of Petroleum East China
Priority to CN201611146899.3A priority Critical patent/CN106594717B/en
Publication of CN106594717A publication Critical patent/CN106594717A/en
Application granted granted Critical
Publication of CN106594717B publication Critical patent/CN106594717B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN  A CARRIER GAS OR AIR 
    • F23C13/00—Apparatus in which combustion takes place in the presence of catalytic 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
    • B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
    • B01D53/86—Catalytic processes
    • B01D53/8621—Removing nitrogen compounds
    • B01D53/8625—Nitrogen oxides
    • 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
    • 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)

Landscapes

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

Abstract

A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides, belong to regenerator device field.It is characterized by: being divided into the dilute-phase zone (2) on top and the emulsion zone (1) of lower part in regenerator shell (11), cyclone separator is equipped in the dilute-phase zone (2), cyclone separator side connects after-burning air pipe line, cyclone separator top is equipped with exhaust pipe, and lower part is equipped with particulate emission mouth；Main wind distributor is equipped in the emulsion zone (1), emulsion zone (1) side is equipped with reclaimable catalyst delivery pipe (5), and emulsion zone (1) lower part is equipped with regenerated catalyst efferent duct (7).The present invention provides main wind and after-burning wind by main air blower and after-burning blower respectively, combustion system using afterburning in hypoxemia in regenerator, cyclone separator the burning of rear combustion, by adjusting combustion atmosphere in regenerator, the after-flame that solid and gaseous combustible object are realized using after-burning, realizes ultralow discharged nitrous oxides.

Description

A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides
Technical field
A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides, belong to regenerator device field.
Background technique
Petroleum refining industry is the indispensable important component of energy industry, and catalytic cracking process is current petroleum refining Most important secondary processing process and heavy oil lighting, the core process for producing petrol and diesel oil component in system industry.Catalytic cracking In technical process, the nitrogen in feedstock oil can be changed into NOx, it is discharged into atmosphere with regenerated flue gas, causes environmental pollution.In April, 2015 Chinese Ministry of Environmental Protection and State General Administration for Quality Supervision, which combine, has issued " petroleum refining industry pollutant emission standard ", and in July current year Implement.Wherein, regeneration fume from catalytic cracking NOxEspecially discharge is limited to 100 mg/m3.This is to regeneration fume from catalytic cracking desulfurization Denitration proposes more strict requirements.
NO in control regeneration fume from catalytic cracking both at home and abroadxThere are mainly three types of the approach of discharge: 1) oily hydrodenitrogeneration；2) make With sulphur nitrogen transfer agent or auxiliary agent；3) equipment for denitrifying flue gas is used.First two method is by hydrogen source, investment cost or removal efficiency It limits and affects use, the NO in flue gas can be more thoroughly removed using flue gas desulfurization and denitrification technologyx.Catalytic cracking is again Raw equipment for denitrifying flue gas generally requires continuous operation time not less than 3 years, therefore maturity for technology and equipment dependability, Engineering design is proposed harshly to be required very much.But currently, the domestic still not industry of mature regeneration fume from catalytic cracking Change desulphurization denitration technology, solid and gaseous combustible object can finally be realized by adjusting combustion atmosphere in regenerator by being badly in need of one kind After-flame, realize the regenerator of ultralow discharged nitrous oxides.
Summary of the invention
The technical problems to be solved by the present invention are: overcoming the deficiencies of the prior art and provide a kind of utilization after-burning wind adjustment Combustion atmosphere in regenerator, realize ultralow discharged nitrous oxides ultralow discharged nitrous oxides rear combustion regenerator.
The technical solution adopted by the present invention to solve the technical problems is: the rear combustion regeneration of the ultralow discharged nitrous oxides Device, it is characterised in that: including regenerator shell, the dilute-phase zone on top and the emulsion zone of lower part are divided into regenerator shell, it is described Dilute-phase zone in be equipped with cyclone separator, cyclone separator side connect after-burning air pipe line, cyclone separator top is set There is exhaust pipe, lower part is equipped with particulate emission mouth；Main wind distributor is equipped in the emulsion zone, main wind distributor side connects Main air hose is connect, emulsion zone side is equipped with reclaimable catalyst delivery pipe, and emulsion zone lower part is equipped with regenerated catalyst efferent duct.
Change the structure and combustion mode of conventional regenerator, be furnished with two Fans, is distinguished by main air blower and after-burning blower Main wind and after-burning wind is provided, combustion system using afterburning in hypoxemia in regenerator, cyclone separator after-burning burning, in tradition On the basis of air supply mode, after-burning wind is added, so that most of coke nitrogen is converted into nitrogen by adjusting combustion atmosphere in regenerator, most The after-flame for realizing solid and gaseous combustible object using after-burning afterwards, realizes ultralow discharged nitrous oxides.
The cyclone separator includes the primary cyclone and secondary cyclone being arranged in series, level-one rotation The inlet connection flue gas of wind separator conveys entrance, and the inlet of secondary cyclone connects after-burning air pipe line, second level rotation The exit of wind separator is equipped with smoke discharge tube.
The primary cyclone and secondary cyclone is uniformly distributed multiple in the dilute-phase zone annular.
The outer ring of the uniformly distributed secondary cyclone of multiple annulars is equipped with after-burning vane shape main pipe, and after-burning vane shape is female Pipe is separately connected the smoke inlet of each secondary cyclone by a plurality of after-burning wind branch pipe, is equipped with multiple second level cyclonic separations The smoke outlet of device connects flue gas collection chamber jointly.
Preferably, using six tunnel after-burning wind branch pipes, after-burning wind branch pipe is centrosymmetric cloth with six secondary cyclones It sets, after-burning wind is assigned to six road branch pipes by after-burning vane shape main pipe and tangentially enters secondary cyclone entrance.In regenerator Portion maintains a relative reduction atmosphere, inhibits NO_x formation, filling into after-burning wind in second level whirlwind entrance can be by flying dust CO after-flame in middle combustible and flue gas, and secondary cyclone separating effect can be enhanced.The after-burning wind fills into The excess air coefficient of whole system is 1.2 ~ 1.3 after secondary cyclone, secondary cyclone entrance mixed gas speed Degree reaches 20 ~ 30 meter per seconds.
The after-burning wind branch pipe is obliquely installed, and after-burning wind manifold valve is respectively set on each after-burning wind branch pipe Door.
The after-burning air pipe line includes after-burning wind delivery pipe and after-burning blower, and after-burning blower is connected by after-burning wind delivery pipe Lead to the cyclone separator entrance.
The main wind distributor includes main wind distributor, main air hose and main wind blower, and main wind blower passes through main air hose Connect main wind distributor；The reclaimable catalyst delivery pipe is inclined at the side of the emulsion zone, reclaimable catalyst The outlet of delivery pipe and the outlet of main wind distributor are oppositely arranged, and form adverse current.
Preferably, regeneration temperature is 700 ~ 900 DEG C, and gas superficial linear velocity is 0.2 ~ 8.0 meter per second, regenerator dilute-phase zone Excess air coefficient is 1.0 ~ 1.1.
A kind of regeneration technology of the rear combustion regenerator of ultralow discharged nitrous oxides, it is characterised in that: include the following steps,
1) main air blower, is opened, main wind enters emulsion zone by main air hose and the main main wind of wind distributor mean allocation, maintains Internal regenerator reducing atmosphere enters the good grain fluidized characteristic of air quantity guarantee of emulsion zone by controlling；
2), reclaimable catalyst enters emulsion zone through reclaimable catalyst delivery pipe, divides with through main air hose and main wind distributor Main wind counter current contacting after matching；
3) after-burning blower, is opened, after-burning wind enters cyclone separator by after-burning air pipe line, so that after-burning wind and whirlwind Flue gas mixing in separator, oxygen needed for providing solid combustible and gas combustible combustion into dilute-phase zone；
4) flue gas and solid particle, are isolated by the burning of cyclone separator, the flue gas after burning is through cyclonic separation The exhaust pipe discharge that device top is equipped with, solid particle are discharged into emulsion zone, and then defeated by the regenerated catalyst of emulsion zone lower part Outlet pipe discharge.
Compared with prior art, the present invention has the beneficial effects that
1, change the structure and combustion mode of conventional regenerator, be furnished with two Fans, pass through main air blower and after-burning blower point Indescribably for main wind and after-burning wind, combustion system is being passed using the after-burning burning of afterburning in hypoxemia in regenerator, cyclone separator It unites on the basis of air supply mode, after-burning wind is added, so that most of coke nitrogen is converted into nitrogen by adjusting combustion atmosphere in regenerator, The after-flame that solid and gaseous combustible object are finally realized using after-burning, realizes ultralow discharged nitrous oxides.
2, using six tunnel after-burning wind branch pipes, after-burning wind branch pipe is centrosymmetric arrangement with six secondary cyclones, after Combustion wind is assigned to six road branch pipes by after-burning vane shape main pipe and tangentially enters secondary cyclone entrance.Internal regenerator maintains One relative reduction atmosphere inhibits NO_x formation, and filling into after-burning wind in second level whirlwind entrance can will be flammable in flying dust CO after-flame in substance and flue gas, and secondary cyclone separating effect can be enhanced.
Detailed description of the invention
Fig. 1 is the rear combustion regenerator front view schematic diagram of ultralow discharged nitrous oxides.
Fig. 2 is the internal structure top view illustration of Fig. 1.
Wherein, 1, emulsion zone 2, dilute-phase zone 3, primary cyclone 4, secondary cyclone 5, reclaimable catalyst Delivery pipe 6, main wind distributor 7, regenerated catalyst efferent duct 8, main air hose 9, after-burning wind delivery pipe 10, smoke discharge tube 11, regenerator shell 12, flue gas collection chamber 13, after-burning vane shape main pipe 14, after-burning wind branch pipe 15, after-burning wind branch pipe valve 16, whirlwind communicating pipe.
Specific embodiment
Fig. 1 ~ 2 are highly preferred embodiment of the present invention, and 1 ~ 2 the present invention will be further described with reference to the accompanying drawing.
Referring to attached drawing 1: a kind of rear combustion regenerator of ultralow discharged nitrous oxides, including regenerator shell 11, regenerator It is divided into the dilute-phase zone 2 on top and 1 two chambers of emulsion zone of lower part in shell 11, cyclone separator, rotation is equipped in dilute-phase zone 2 Wind separator side connects after-burning air pipe line, and cyclone separator top is equipped with exhaust pipe, and lower part is equipped with particulate emission mouth；It is close Main wind distributor is equipped in phase region 1, main wind distributor side connects main air hose 8, and 1 side of emulsion zone is equipped with reclaimable catalyst Delivery pipe 5,1 lower part of emulsion zone are equipped with regenerated catalyst efferent duct 7.
Cyclone separator is two-stage separator, including the primary cyclone 3 being arranged in series and second level whirlwind point From device 4, the inlet connection flue gas of primary cyclone 3 conveys entrance, and the inlet of secondary cyclone 4 connects after-burning The exit of air pipe line, secondary cyclone 4 is equipped with smoke discharge tube 10.Primary cyclone 3 and second level cyclonic separation It is connected between device 4 by whirlwind communicating pipe 16.
Primary cyclone 3 and secondary cyclone 4 are uniformly distributed multiple in 2 annular of dilute-phase zone.Each level-one rotation Individually one secondary cyclone 4 of connection, the outer ring of multiple uniformly distributed secondary cyclones 4 of annular are equipped with wind separator 3 After-burning vane shape main pipe 13, after-burning vane shape main pipe 13 are separately connected each second level cyclonic separation by a plurality of after-burning wind branch pipe 14 The smoke inlet of device 4, the smoke outlet equipped with multiple secondary cyclones 4 connect flue gas collection chamber 12 jointly.
Preferably, after-burning wind branch pipe 14 is obliquely installed, and after-burning wind branch pipe valve is respectively set on each after-burning wind branch pipe 14 15.After-burning air pipe line includes after-burning wind delivery pipe 9 and after-burning blower, and after-burning blower is connected to whirlwind point by after-burning wind delivery pipe 9 From device portal.
Main wind distributor includes main wind distributor 6, main air hose 8 and main wind blower, and main wind blower is connected by main air hose 8 Main wind distributor 6；Reclaimable catalyst delivery pipe 5 is inclined at the side of emulsion zone 1, the outlet of reclaimable catalyst delivery pipe 5 Outlet with main wind distributor 6 is oppositely arranged, and forms adverse current.
At work, air supply mode includes main wind and after-burning to the rear combustion regenerator of ultralow discharged nitrous oxides of the invention Wind, wherein main wind is provided by main air blower, after-burning wind is provided by after-burning blower.Reclaimable catalyst through reclaimable catalyst delivery pipe 5 into Enter regenerator emulsion zone 1, is regenerated with the main wind counter current contacting after main air hose 8 and the distribution of main wind distributor 6.By controlling main wind Volume of air supply makes in reducing atmosphere in regenerator dilute-phase zone 2, and excess air coefficient is maintained at 1.0 ~ 1.1, but guarantees good Grain fluidized characteristic, the nitrogen oxides predecessor NH that the nitrogen in petroleum coke is formed in emulsion zone 13With HCN in reproducibility gas Nitrogen oxides will not be changed under atmosphere, but generate nitrogen, while also there are a large amount of CO and CH in flue gas4Equal reducibility gas, fly Uncompleted burned carbon content is also higher in ash.
After-burning wind branch pipe valve 15 is opened, after-burning blower is opened, after-burning wind is evenly distributed to through after-burning vane shape main pipe 13 Six after-burning wind branch pipes 14 then tangentially enter secondary cyclone 4 by after-burning wind branch pipe 14.Flue gas passes through one cyclonic Separator 3 is mixed in 4 inlet of secondary cyclone with after-burning wind after separating, and after-burning wind provides solid combustible and gas can Oxygen needed for combustion things are burnt, makes solid combustible and gas combustible after-flame, the flue gas after burning in flue gas enter flue gas gas collection Room 12 is discharged through flue gas delivery pipe 10.Nitrogen oxides in effluent content is lower at this time, and unburned carbon in flue dust and CO content also compared with It is low.
A kind of regeneration technology of the rear combustion regenerator of ultralow discharged nitrous oxides, comprising the following steps:
1, main air blower is opened, main wind enters emulsion zone 1 by main air hose 8 and the main main wind of wind distributor mean allocation, ties up Internal regenerator reducing atmosphere is held, the good grain fluidized characteristic of air quantity guarantee of emulsion zone 1 is entered by controlling；Emulsion zone 1 pressure is significantly greater than dilute-phase zone 2, as the pressure for increasing dilute-phase zone 2 of regenerator height gradually decreases, but dilute-phase zone 2 Pressure difference is smaller, and pressure difference signal is more steady during long-play, there is apparent emulsion zone 1 and dilute-phase zone 2, pressure Smooth fluctuations illustrate that fluidization property of the particle in regenerator is preferable.
2, reclaimable catalyst enters emulsion zone 1 through reclaimable catalyst delivery pipe 5, and through main air hose 8 and main wind distributor Main wind counter current contacting after distribution.
3, after-burning blower is opened, after-burning wind enters cyclone separator by after-burning air pipe line, so that after-burning wind and whirlwind Flue gas mixing in separator, oxygen needed for providing solid combustible and gas combustible combustion into dilute-phase zone 2.
4, flue gas and solid particle are isolated by the burning of cyclone separator, the flue gas after burning is filled through cyclonic separation The exhaust pipe discharge that top is equipped with is set, solid particle is discharged into emulsion zone 1, and then defeated by the regenerated catalyst of 1 lower part of emulsion zone Outlet pipe 7 is discharged.Regeneration temperature is 700 ~ 900 DEG C, and gas superficial linear velocity is 0.2 ~ 8.0 meter per second, and regenerator dilute-phase zone is excessive empty Gas coefficient is 1.0 ~ 1.1.
The above described is only a preferred embodiment of the present invention, being not that the invention has other forms of limitations, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But without departing from the technical solutions of the present invention, according to the technical essence of the invention to above embodiments institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection scope of technical solution of the present invention.

Claims (7)

1. a kind of rear combustion regenerator of ultralow discharged nitrous oxides, it is characterised in that: including regenerator shell (11), regenerator It is divided into the dilute-phase zone (2) on top and the emulsion zone (1) of lower part in shell (11), is equipped with cyclonic separation in the dilute-phase zone (2) Device, cyclone separator side connect after-burning air pipe line, and cyclone separator top is equipped with exhaust pipe, and lower part is arranged equipped with particle Put mouth；Main wind distributor is equipped in the emulsion zone (1), main wind distributor side connects main air hose (8), emulsion zone (1) side is equipped with reclaimable catalyst delivery pipe (5), and emulsion zone (1) lower part is equipped with regenerated catalyst efferent duct (7)；
The cyclone separator includes the primary cyclone (3) and secondary cyclone (4) being arranged in series, level-one The inlet connection flue gas of cyclone separator (3) conveys entrance, and the inlet of secondary cyclone (4) connects after-burning air hose The exit on road, secondary cyclone (4) is equipped with smoke discharge tube (10)；
The after-burning air pipe line includes after-burning wind delivery pipe (9) and after-burning blower, and after-burning blower passes through after-burning wind delivery pipe (9) The connection cyclone separator entrance.
2. a kind of rear combustion regenerator of ultralow discharged nitrous oxides according to claim 1, it is characterised in that: described Primary cyclone (3) and secondary cyclone (4) are uniformly distributed multiple in dilute-phase zone (2) annular.
3. a kind of rear combustion regenerator of ultralow discharged nitrous oxides according to claim 2, it is characterised in that: Duo Gehuan The outer ring of the uniformly distributed secondary cyclone of shape (4) is equipped with after-burning vane shape main pipe (13), and after-burning vane shape main pipe (13) passes through A plurality of after-burning wind branch pipe (14) is separately connected the smoke inlet of each secondary cyclone (4), is equipped with multiple second level whirlwind point Smoke outlet from device (4) connects flue gas collection chamber (12) jointly.
4. a kind of rear combustion regenerator of ultralow discharged nitrous oxides according to claim 3, it is characterised in that: described After-burning wind branch pipe (14) is obliquely installed, and after-burning wind branch pipe valve (15) is respectively set on each after-burning wind branch pipe (14).
5. a kind of rear combustion regenerator of ultralow discharged nitrous oxides according to claim 1, it is characterised in that: described Main wind distributor includes main wind distributor (6), main air hose (8) He Zhufeng blower, and main wind blower passes through main air hose (8) connection master Wind distributor (6)；The reclaimable catalyst delivery pipe (5) is inclined at the side of the emulsion zone (1), catalysis to be generated The outlet of agent delivery pipe (5) and the outlet of main wind distributor (6) are oppositely arranged, and form adverse current.
6. a kind of rear combustion regenerator of ultralow discharged nitrous oxides according to claim 1, it is characterised in that: regeneration temperature Degree is 700 ~ 900 DEG C, and gas superficial linear velocity is 0.2 ~ 8.0 meter per second, and regenerator dilute-phase zone excess air coefficient is 1.0 ~ 1.1.
7. a kind of regeneration technology of the rear combustion regenerator of any ultralow discharged nitrous oxides of claim 1 ~ 6, special Sign is:
1) main air blower, is opened, main wind is entered emulsion zone (1) by the main wind of main air hose (8) He Zhufeng distributor mean allocation, is tieed up Internal regenerator reducing atmosphere is held, the good grain fluidized characteristic of air quantity guarantee of emulsion zone (1) is entered by controlling；
2), reclaimable catalyst enters emulsion zone (1) through reclaimable catalyst delivery pipe (5), fills with through main air hose (8) and the distribution of main wind Main wind counter current contacting after setting distribution；
3) after-burning blower, is opened, after-burning wind enters cyclone separator by after-burning air pipe line, so that after-burning wind and cyclonic separation Flue gas mixing in device, oxygen needed for providing solid combustible and gas combustible combustion into dilute-phase zone (2)；
4) flue gas and solid particle, are isolated by the burning of cyclone separator, the flue gas after burning is through cyclone separator The exhaust pipe discharge that top is equipped with, solid particle is discharged into emulsion zone (1), and then passes through the regenerated catalyst of emulsion zone (1) lower part Efferent duct (7) discharge.
CN201611146899.3A 2016-12-13 2016-12-13 A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides Expired - Fee Related CN106594717B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201611146899.3A CN106594717B (en) 2016-12-13 2016-12-13 A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201611146899.3A CN106594717B (en) 2016-12-13 2016-12-13 A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides

Publications (2)

Publication Number Publication Date
CN106594717A CN106594717A (en) 2017-04-26
CN106594717B true CN106594717B (en) 2019-05-03

Family

ID=58801148

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201611146899.3A Expired - Fee Related CN106594717B (en) 2016-12-13 2016-12-13 A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides

Country Status (1)

Country Link
CN (1) CN106594717B (en)

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU614530B2 (en) * 1987-08-12 1991-09-05 Mobil Oil Corporation Nox control in fluidized bed combustion process
CN101351259A (en) * 2005-12-02 2009-01-21 巴斯福催化剂公司 Lower temperature CO promoters for FCC with low NOx
US7470412B2 (en) * 2005-12-21 2008-12-30 Praxair Technology, Inc. Reduction of CO and NOx in regenerator flue gas
CN102489342B (en) * 2011-11-25 2013-08-21 岳阳恒忠机械工程技术有限公司 Catalytic cracking regenerated catalyst system and gas collecting method
CN104342196B (en) * 2013-08-03 2016-06-08 中石化洛阳工程有限公司 A kind of catalyst cracking method and device thereof
CN104513670B (en) * 2013-09-29 2016-06-08 中石化洛阳工程有限公司 A kind of catalyst cracking method and device

Also Published As

Publication number Publication date
CN106594717A (en) 2017-04-26

Similar Documents

Publication Publication Date Title
CN106051749B (en) A kind of low nitrogen burning technique based on circulating fluidized bed boiler
CN103884013B (en) Manifold type environment-friendly type fluidized-bed combustion boiler combustion method and device
CN101592336A (en) A kind of fluidized-bed combustion boiler
CN107940448B (en) Pulverized coal particle circulating fluidized bed combustion system and combustion method thereof
CN101280920B (en) Fluidization-suspension combined combustion boiler
CN106838892A (en) A kind of energy-efficient Circulating Fluidized Bed Boiler of low nitrogen
CN2869593Y (en) Staged-combustion cyclone coal-powder combustor
CN108662585A (en) A kind of ultralow NO of low-load combustion-stabilizingXCombustion system and its burner
CN206160108U (en) Boiler combustion system
CN107420887A (en) The biomass direct-fired device that oxygen-enriched combusting and flue gas recirculation are combined
CN107191922A (en) Low nitrogen burning CFBB
CN201434374Y (en) Fluidized bed boiler
CN115234900A (en) Circulating fluidized bed hot water boiler for burning coal powder particles and burning method thereof
CN207527571U (en) A kind of natural gas boiler low nitrogen burning system
CN104696951B (en) Boiler-in integrated coupled desulfurization and denitrification method for circulating fluidized bed boiler
CN208779450U (en) A kind of ultralow NOX combustion system and its burner of low-load combustion-stabilizing
CN208042121U (en) A kind of pulverized coal particle recirculating fluidized bed combustion system
CN204593369U (en) The tertiary air of pulverized-coal fired boiler is made into the device that First air carries out burning
CN211119320U (en) Low-nitrogen combustion circulating fluidized bed boiler
CN106196020A (en) The tertiary air of pulverized-coal fired boiler is made into the method and device that First air carries out burning
CN109654485A (en) A kind of swirling pulverized coal combustion device using flue gas recirculation and precombustion chamber
CN106594717B (en) A kind of rear combustion regenerator and its regeneration technology of ultralow discharged nitrous oxides
CN116085787A (en) Pulverized coal boiler and control method thereof
CN203082866U (en) Fluid-reconstruction-based circulating fluidized bed boiler capable of controlling nitrogen oxide
CN106642089A (en) Combustion method and combustion device for desulfuration and denitration of circulating fluid bed

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20190503

Termination date: 20191213