[go: up one dir, main page]

EP2589870A1 - Gazogène ascendant et grille de gazogène - Google Patents

Gazogène ascendant et grille de gazogène Download PDF

Info

Publication number
EP2589870A1
EP2589870A1 EP11187993.8A EP11187993A EP2589870A1 EP 2589870 A1 EP2589870 A1 EP 2589870A1 EP 11187993 A EP11187993 A EP 11187993A EP 2589870 A1 EP2589870 A1 EP 2589870A1
Authority
EP
European Patent Office
Prior art keywords
gasifier
grate
ash
updraft
air channel
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Withdrawn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
EP11187993.8A
Other languages
German (de)
English (en)
Inventor
Jonas Bovin
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.)
Stirlingdk Aps
Original Assignee
Stirlingdk Aps
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 Stirlingdk Aps filed Critical Stirlingdk Aps
Priority to EP11187993.8A priority Critical patent/EP2589870A1/fr
Publication of EP2589870A1 publication Critical patent/EP2589870A1/fr
Withdrawn legal-status Critical Current

Links

Images

Classifications

    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/34—Grates; Mechanical ash-removing devices
    • C10J3/40—Movable grates
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/22—Arrangements or dispositions of valves or flues
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
    • C10J3/02—Fixed-bed gasification of lump fuel
    • C10J3/20—Apparatus; Plants
    • C10J3/32—Devices for distributing fuel evenly over the bed or for stirring up the fuel bed
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H13/00—Grates not covered by any of groups F23H1/00-F23H11/00
    • F23H13/08—Grates specially adapted for gas generators and also applicable to furnaces
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H3/00—Grates with hollow bars
    • F23H3/02—Grates with hollow bars internally cooled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
    • F23H—GRATES; CLEANING OR RAKING GRATES
    • F23H9/00—Revolving-grates; Rocking or shaking grates
    • F23H9/04—Grates rocked as a whole
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2200/00—Details of gasification apparatus
    • C10J2200/15—Details of feeding means
    • C10J2200/152—Nozzles or lances for introducing gas, liquids or suspensions
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0913—Carbonaceous raw material
    • C10J2300/0916—Biomass
    • C—CHEMISTRY; METALLURGY
    • C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
    • C10J2300/00—Details of gasification processes
    • C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
    • C10J2300/0953—Gasifying agents
    • C10J2300/0956—Air or oxygen enriched air

Definitions

  • the invention relates to an updraft gasifier for a biomass gasification system to generate gasifier product gas to be burned in a combustion unit, which gasifier comprises:
  • the document WO 2007/081296 A1 discloses a cross draft gasifier for biomass that uses a downdraft and an updraft mode to produce gasifier product gas, which can be burned in a combustion unit.
  • the disclosed gasifier comprises a first inlet for municipal waste in the upper area of the gasifier and a first outlet of the gasifier for the ash at the bottom of the gasifier.
  • the gasifier furthermore comprises a second inlet for preheated air or oxygen with nozzles in the wall of the lower area of the gasifier and a second outlet in the wall of the upper area of the gasifier for syngas as gasifier product gas generated in the gasifier.
  • a fix mounted ash grate made of special material which is high temperature resistant is used to enable that the syngas in the accumulated ash content in this portion can be sucked easily in the updraft mode.
  • This known gasifier processed in the downdraft mode comprises the disadvantage that the gasification agent is not well distributed into the ash and biomass by the nozzles in the wall of the gasifier. Due to the unequal distribution of the gasification agent hot zones are created that cause ash melting and ash agglomeration what finally can lead to blocking of the gasifier.
  • a gasifier according to the invention is characterized in, that the grate is arranged in a cross-sectional area of the gasifier and comprises at least one air channel connected to the second inlet and at least one nozzle connected to the air channel to transport the gasification agent into the cross-sectional area of the gasifier.
  • the updraft gasifier according to the invention comprises the advantage that the gasification agent is distributed by at least one, but preferable several nozzles, arranged at the grate in the cross-sectional area of the gasifier.
  • the grate comprises a moving scraper with an air channel and nozzles to distribute the gasification agent. Due to the movement of the scraper, the position of the nozzles changes over time what ensures a smooth and even distribution of the gasification agent within the ash and biomass. Furthermore, the flow of the gasification agent through the air channel and nozzles of the scraper advantageously cools the temperature of the scraper.
  • FIG 1 is a perspective view and Figure 2 is a side view of a Stirling plant 1 to generate heat and electricity from biomass.
  • the Stirling plant 1 comprises a biomass gasification system 2 to generate heat, which heat to some extent is transformed into electricity by four Stirling engines 3.
  • the biomass gasification system 2 comprises an updraft gasifier 4, from which gasifier product gas is transported through pipes 5 to four combustion units 6 where the gasifier product gas is burnt to heat up a transfer medium used to drive the Stirling engines 3.
  • FIG 3 is a perspective view of the gasifier 4 of the biomass gasification system 2.
  • the gasifier 4 is built as updraft gasifier.
  • the updraft gasifier is a standing tubular reactor 7 which consists essentially out of cylindrical steel shell isolated and lined with bricks on the inner side. Additional the reactor 7 is isolated on the outer side as well, to avoid hot surfaces.
  • the gasifier 4 comprises a wood chip conveyor 8 connected to a first inlet 9 of the gasifier 4 as fuel feed and an ash conveyer 10 connected to a first outlet 11 of the gasifier 4 as fuel discharge.
  • the wood chip conveyor 8 feeds the gasifier 4 through the lateral first inlet 9 which is arranged in the upper area 12 of the gasifier 4.
  • the feeding is monitored by a filling level indicator.
  • the filling level indicator consists out of a rotating blade in the filling space mounted on a geared motor. The filling level is periodically checked and if necessary the fuel feed activated.
  • the gasification in the updraft gasifier 4 takes place in a counterflow principle, thereby the fuel passes the gasifier 4 from its upper area 12 to its lower area 13, while the gasification agent enters the gasifier 4 at a second inlet 14 at the bottom of the gasifier 4 and leaves the gasifier 4 as gasification product gas (syngas) at a second outlet 15 in the upper area 12 of the gasifier 4.
  • gasification product gas gas (syngas)
  • different zones are formed in the gasifier 4. Basically four zones are formed, the drying zone, the pyrolysis zone, the reduction zone and the oxidation zone.
  • a gasification agent a defined mixture of flue gas and air is used.
  • the gasification agent is preheated in a gas pre-heater of the biomass gasification system 2 and afterwards fed at the second inlet 14 at the bottom of the gasifier 4.
  • the updraft gasifier 4 furthermore comprises a grate 16 that is arranged in the cross-sectional area of the gasifier 4 at the bottom of the gasifier 4 just above the first outlet 11 to handle and thereby discard the ash.
  • Figure 4 is a sectional view and top view of the grate 16 in the gasifier 4.
  • the grate 16 comprises an air channel 17 connected to the second inlet 14 to transport the gasification agent through the grate 16.
  • the grate 16 furthermore comprises a scraper 18 realized by eight hollow triangle shaped profile elements 19 fixed to the air channel 17.
  • the profile elements 19 comprise openings 20 functioning as nozzles to enable a flow of the gasification agent from the second inlet 14 through the air channel 17 and the profile elements 19 into the lower area 13 of the gasifier 4.
  • the gasification agent is distributed through the openings 20 more or less equally over the cross-sectional area of the gasifier 4 into the ash and biomass within the gasifier 4.
  • the creation of hot zones which may cause ash melting and ash agglomeration what finally can lead to blocking of the gasifier 4 is avoided.
  • the updraft gasifier 4 furthermore comprises a grate drive 21 connected to a connection element 22 of the air channel 17.
  • the grate drive 21 periodically moves the air channel 17 and the scraper 18 fixed to the air channel 17. This provides the advantage that the ash is moved by the scraper 18 into the ash conveyer not shown in Figure 4 .
  • this movement of the scraper 18 with the openings 20 provides the advantage that the position of the openings 20 changes over time what enables that the gasification agent gets even better distributed into the ash and biomass.
  • FIG. 5 is a sectional and top view of a grate 23 in a gasifier according to a second embodiment of the invention.
  • the grate 23 could be attached to the bottom of the updraft gasifier 4 and would push the ash within the gasifier 4 into a screw drive 24 connected to the first outlet 11 to discharge the ash into the ash conveyor 10.
  • the grate 23 comprises an air channel with a ring channel area 25 that is connected to the second inlet 14. Eight smaller air channels 26 are connected to the ring channel area 25, which air channels 26 are spread over the cross-sectional area of the gasifier 4. Each of these air channels 26 comprises several nozzles to distribute the gasification agent.
  • the nozzles are shielded by covers 27. This has the advantage that the maintenance work to keep the distribution of the gasification agent through the nozzles functional is reduced.
  • the grate 23 furthermore comprises two movable scrapers 28, each connected to a scraper drive 29. With the movement of the scrapers 28, ash is moved from the bottom of the gasifier 4 into the screw drive 24 to discharge the ash.
  • the scrapers 28 do not comprises air channels to discharge the gasifier agent which gets distributed through the fixed nozzles only. This provides the advantage that the scrapers 28 are robust and easy manufactured.
  • the air channel 25 of the grate 23 furthermore comprises two cleanouts 30. These cleanouts 30 are closed during normal production of the gasifier product gas and may be opened by a service personal to enable cleaning of the air channels 25 and 26. These cleanouts 30 provide the advantage that the air channels of the grate 23 may be kept clean and fully functional.
  • the screw drive 24 in the gasifier 4 as part of the ash conveyer comprises an air channel 31 and nozzles 32 as well.
  • These nozzles 32 advantageously add to the equal distribution of the gasifier agent into the ash and biomass. But it has to be stated that in a less preferred embodiment the invention works without these elements 31 and 32 as well. Furthermore there could be other ways to connect the air channel 31 with the nozzles 32 as shown in Figure 5 .
  • the grate could comprise all kind of different air channels and types of nozzles to distribute the gasifier agent.
  • the scraper may be fixed, but preferable is movable to transport the ash into the ash conveyer.
  • the air channel could comprise the form of a square or rectangle or any other from that might have advantages for the particular realization.
  • the air channel functions as a manifold system to transport the gasification agent to the nozzles.
  • the first embodiment of a grate 16 according to Figure 4 comprises only movable nozzles 20 in the profile elements 19 and the second embodiment of a grate 23 according to Figure 5 comprises only fixed nozzles in the air channels 26.
  • the grate comprises fixed and movable nozzles to achieve the advantage that the gasification agent gets distributed through the fixed nozzles and the nozzles of the movable scrapers. This ensures an equal distribution of the gasification agent into the ash and biomass.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Chemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • Processing Of Solid Wastes (AREA)
EP11187993.8A 2011-11-07 2011-11-07 Gazogène ascendant et grille de gazogène Withdrawn EP2589870A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11187993.8A EP2589870A1 (fr) 2011-11-07 2011-11-07 Gazogène ascendant et grille de gazogène

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11187993.8A EP2589870A1 (fr) 2011-11-07 2011-11-07 Gazogène ascendant et grille de gazogène

Publications (1)

Publication Number Publication Date
EP2589870A1 true EP2589870A1 (fr) 2013-05-08

Family

ID=44925395

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11187993.8A Withdrawn EP2589870A1 (fr) 2011-11-07 2011-11-07 Gazogène ascendant et grille de gazogène

Country Status (1)

Country Link
EP (1) EP2589870A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101721823B1 (ko) 2015-11-06 2017-04-10 정동규 가연성 폐기물 및 바이오매스 자원을 이용하는 상향식 가스화 반응기
WO2020065008A1 (fr) 2018-09-27 2020-04-02 Wieslaw Wilczynski Système de chauffage d'une tête d'un moteur stirling

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB209211A (en) * 1922-10-13 1924-01-10 George Herbert Bentley Improvements in gas producers and the like
US3841851A (en) * 1974-02-12 1974-10-15 E Kaiser Process and apparatus for the gasification of organic matter
US4154582A (en) * 1977-08-01 1979-05-15 General Electric Company Method of solids discharge from coal gasifier grate
US20020069798A1 (en) * 2000-09-14 2002-06-13 Aguadas Ellis Charles W. Method and apparatus for generating and utilizing combustible gas
WO2007081296A1 (fr) 2006-01-16 2007-07-19 Gep Yesil Enerji Uretim Teknolojileri Ltd. Sti. Gazogene a ecoulement descendant/ascendant pour production de gaz de synthese a partir de dechets solides
EP2012059A1 (fr) * 2007-07-02 2009-01-07 Suncue Company Ltd. Four
WO2009149311A1 (fr) * 2008-06-05 2009-12-10 Synthesis Energy Systems, Inc.Reply To # Gazéificateur à lit fluidisé avec évacuation de solides et dispositif de classification

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB209211A (en) * 1922-10-13 1924-01-10 George Herbert Bentley Improvements in gas producers and the like
US3841851A (en) * 1974-02-12 1974-10-15 E Kaiser Process and apparatus for the gasification of organic matter
US4154582A (en) * 1977-08-01 1979-05-15 General Electric Company Method of solids discharge from coal gasifier grate
US20020069798A1 (en) * 2000-09-14 2002-06-13 Aguadas Ellis Charles W. Method and apparatus for generating and utilizing combustible gas
WO2007081296A1 (fr) 2006-01-16 2007-07-19 Gep Yesil Enerji Uretim Teknolojileri Ltd. Sti. Gazogene a ecoulement descendant/ascendant pour production de gaz de synthese a partir de dechets solides
EP2012059A1 (fr) * 2007-07-02 2009-01-07 Suncue Company Ltd. Four
WO2009149311A1 (fr) * 2008-06-05 2009-12-10 Synthesis Energy Systems, Inc.Reply To # Gazéificateur à lit fluidisé avec évacuation de solides et dispositif de classification

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101721823B1 (ko) 2015-11-06 2017-04-10 정동규 가연성 폐기물 및 바이오매스 자원을 이용하는 상향식 가스화 반응기
WO2020065008A1 (fr) 2018-09-27 2020-04-02 Wieslaw Wilczynski Système de chauffage d'une tête d'un moteur stirling

Similar Documents

Publication Publication Date Title
US4929254A (en) Down-draft fixed bed gasifier system
US8695323B2 (en) Plant for the gasification of biomass
US5028241A (en) Down-draft fixed bed gasifier system
US20130020190A1 (en) Rotary Retort System
CN105026725B (zh) 原料气化方法及设备
CN109609190B (zh) 一种垃圾气化及焦油催化气化装置
WO2009093107A1 (fr) Réacteur agitateur pyrolytique de gazéification à contre-courant
CN109153928A (zh) 废弃物-能量转换系统
US20120247375A1 (en) Grate clearing and ash removal system for gasification furnace
EP2589870A1 (fr) Gazogène ascendant et grille de gazogène
KR20130011049A (ko) 비산재 분리 및 2차 연소기능을 갖는 연속 연소장치
WO2010096038A1 (fr) Gazéificateur à vis sans fin à chargement continu
CN104774650B (zh) 具有焦油降解功能的u型固定床气化-催化反应装置
RU207663U1 (ru) Мобильный модуль реактора пиролиза для комплексов термической переработки отходов
US20060180459A1 (en) Gasifier
CN117568071B (zh) 固体热解气化系统
CA2568029A1 (fr) Gazeifieur perfectionne
EP2666845A1 (fr) Appareil de production de gaz
JP2014125578A (ja) 生成ガスの製造方法、製造装置及び高温燃焼ガス発生装置
FI126917B (fi) Järjestely ja menetelmä polttoaineen polttamiseksi
US20190390855A1 (en) Boiler Unit
EP3305875B1 (fr) Commande de flux de réacteur
AU2021225098B2 (en) Waste processing system
CN109355107B (zh) 一种煤制气复合气化装置
US20170130149A1 (en) A gasifier

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

19U Interruption of proceedings before grant

Effective date: 20130304

19W Proceedings resumed before grant after interruption of proceedings

Effective date: 20210901

PUAJ Public notification under rule 129 epc

Free format text: ORIGINAL CODE: 0009425

32PN Public notification

Free format text: COMMUNICATION PURSUANT TO RULE 142 EPC (RESUMPTION OF PROCEEDINGS UNDER RULE 142(2) EPC DATED 10.03.2021)

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20220301