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WO2017025875A3 - A system for reducing un-burnt carbon content in ash particles - Google Patents

A system for reducing un-burnt carbon content in ash particles Download PDF

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Publication number
WO2017025875A3
WO2017025875A3 PCT/IB2016/054735 IB2016054735W WO2017025875A3 WO 2017025875 A3 WO2017025875 A3 WO 2017025875A3 IB 2016054735 W IB2016054735 W IB 2016054735W WO 2017025875 A3 WO2017025875 A3 WO 2017025875A3
Authority
WO
WIPO (PCT)
Prior art keywords
flue gases
ash
ash particles
carbon
carbon content
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.)
Ceased
Application number
PCT/IB2016/054735
Other languages
French (fr)
Other versions
WO2017025875A2 (en
Inventor
Prakash Shamrao KARVE
Jalindar Uttam GAIKWAD
Umesh Suryakant KULKARNI
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.)
Thermax Ltd
Original Assignee
Thermax Ltd
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 Thermax Ltd filed Critical Thermax Ltd
Priority to TR2018/01747T priority Critical patent/TR201801747T1/en
Publication of WO2017025875A2 publication Critical patent/WO2017025875A2/en
Publication of WO2017025875A3 publication Critical patent/WO2017025875A3/en
Anticipated expiration legal-status Critical
Priority to PH12018500310A priority patent/PH12018500310B1/en
Priority to ZA2018/01691A priority patent/ZA201801691B/en
Ceased legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23B—METHODS OR APPARATUS FOR COMBUSTION USING ONLY SOLID FUEL
    • F23B5/00—Combustion apparatus with arrangements for burning uncombusted material from primary combustion
    • F23B5/04—Combustion apparatus with arrangements for burning uncombusted material from primary combustion in separate combustion chamber; on separate grate
    • 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 
    • F23C10/00—Fluidised bed combustion apparatus
    • F23C10/002—Fluidised bed combustion apparatus for pulverulent solid fuel
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
    • F23G5/30—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having a fluidised bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
    • F23G2209/00—Specific waste
    • F23G2209/30—Solid combustion residues, e.g. bottom or flyash
    • 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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
    • Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Fluidized-Bed Combustion And Resonant Combustion (AREA)
  • Chimneys And Flues (AREA)

Abstract

The system disclosed relates to the field of mechanical engineering. The system reduces carbon content present in ash. The ash particles are conveyed from a first hopper to a carbon burnout unit. The ash particles are fluidized in the carbon burnout unit by a fluidizing medium supplied by a first blower, thereby combusting the un-burnt carbon present in the ash particles, and generating residual ash and flue gases. A cyclone separator separates a first portion the flue gases containing ash particles having size greater than 7.5 microns, and releases a second portion of the flue gases containing fly ash. The heat from the second portion is extracted by a heat recovery unit. The second portion of the flue gases is then fed to an air pollution control unit to separate the fly ash from the flue gases. The flue gases are released to the atmosphere by a second blower.
PCT/IB2016/054735 2015-08-07 2016-08-05 A system for reducing un-burnt carbon content in ash particles Ceased WO2017025875A2 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
TR2018/01747T TR201801747T1 (en) 2015-08-07 2016-08-05 A SYSTEM FOR REDUCING THE INCREASED CARBON CONTENT IN ASH PARTICULARS
PH12018500310A PH12018500310B1 (en) 2015-08-07 2018-02-12 A system for reducing un-burnt carbon content in ash particles
ZA2018/01691A ZA201801691B (en) 2015-08-07 2018-03-12 A system for reducing un-burnt carbon content in ash particles

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IN2995MU2015 2015-08-07
IN2995/MUM/2015 2015-08-07

Publications (2)

Publication Number Publication Date
WO2017025875A2 WO2017025875A2 (en) 2017-02-16
WO2017025875A3 true WO2017025875A3 (en) 2017-03-23

Family

ID=57983559

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2016/054735 Ceased WO2017025875A2 (en) 2015-08-07 2016-08-05 A system for reducing un-burnt carbon content in ash particles

Country Status (4)

Country Link
PH (1) PH12018500310B1 (en)
TR (1) TR201801747T1 (en)
WO (1) WO2017025875A2 (en)
ZA (1) ZA201801691B (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017415A1 (en) * 1991-04-05 1992-10-15 Progress Materials Inc. Fly ash benefication by carbon burnout in a dry bubbling fluid bed
US6457425B1 (en) * 1999-11-02 2002-10-01 Consolidated Engineering Company, Inc. Method and apparatus for combustion of residual carbon in fly ash
CN202630043U (en) * 2012-04-06 2012-12-26 中国华能集团清洁能源技术研究院有限公司 Device reducing unburned carbon content in fly ash of circulating fluidized bed (CFB) boiler
US20130068138A1 (en) * 2010-06-01 2013-03-21 Outotec Oyj Process and plant for lowering the residual carbon content of ash

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1992017415A1 (en) * 1991-04-05 1992-10-15 Progress Materials Inc. Fly ash benefication by carbon burnout in a dry bubbling fluid bed
US6457425B1 (en) * 1999-11-02 2002-10-01 Consolidated Engineering Company, Inc. Method and apparatus for combustion of residual carbon in fly ash
US20130068138A1 (en) * 2010-06-01 2013-03-21 Outotec Oyj Process and plant for lowering the residual carbon content of ash
CN202630043U (en) * 2012-04-06 2012-12-26 中国华能集团清洁能源技术研究院有限公司 Device reducing unburned carbon content in fly ash of circulating fluidized bed (CFB) boiler

Also Published As

Publication number Publication date
ZA201801691B (en) 2019-01-30
PH12018500310B1 (en) 2021-04-28
PH12018500310A1 (en) 2018-08-13
TR201801747T1 (en) 2018-05-21
WO2017025875A2 (en) 2017-02-16

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