US20220403265A1 - Fixed bed gasifier for producing a product gas from pourable carbonaceous particles - Google Patents
Fixed bed gasifier for producing a product gas from pourable carbonaceous particles Download PDFInfo
- Publication number
- US20220403265A1 US20220403265A1 US17/779,615 US202017779615A US2022403265A1 US 20220403265 A1 US20220403265 A1 US 20220403265A1 US 202017779615 A US202017779615 A US 202017779615A US 2022403265 A1 US2022403265 A1 US 2022403265A1
- Authority
- US
- United States
- Prior art keywords
- gasifier
- bed
- fuel
- fixed
- support device
- 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.)
- Abandoned
Links
- 239000002245 particle Substances 0.000 title claims abstract description 41
- 238000010079 rubber tapping Methods 0.000 claims abstract description 34
- 239000000446 fuel Substances 0.000 claims abstract description 18
- 238000002485 combustion reaction Methods 0.000 claims description 2
- 238000001816 cooling Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000005245 sintering Methods 0.000 abstract description 4
- 238000012421 spiking Methods 0.000 abstract description 2
- 239000002028 Biomass Substances 0.000 description 5
- 238000002309 gasification Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000008188 pellet Substances 0.000 description 3
- 239000002893 slag Substances 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
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
- C10J3/32—Devices for distributing fuel evenly over the bed or for stirring up the fuel bed
-
- 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
- C10J3/24—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed
- C10J3/26—Arrangements or dispositions of valves or flues to permit flow of gases or vapours other than upwardly through the fuel bed downwardly
-
- 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
- C10J3/34—Grates; Mechanical ash-removing devices
- C10J3/40—Movable grates
- C10J3/42—Rotary grates
Definitions
- the present invention relates to a fixed-bed gasifier for generating a product gas from pourable carbonaceous fuel particles.
- clinker/slag is formed in the oxidation zone, which has to be operated at more than 900° C.
- This clinker has different behavior depending on the fuel.
- the fuel may slag in its original form. This means that if the fuel is fed in pellet form, the pellets will first slag in their original form before the clinker pellets start to stick together.
- a clinker lake, or a direct clinker layer over the entire gasifier cross-section may also develop. This is what happens with grass cobs, for example. What always happens is that the individual slagging particles sinter together in the gasifier.
- a device is needed to break up the clinker so that combustion air can flow into the fuel-particle packed bed and the product gas can flow out of the fuel-particle packed bed. Only if the reaction in the gasifier is maintained the clinker can be conveyed further towards the support device.
- a fork element with a plurality of prongs is known, which is intermittently inserted into the fuel-particle packed bed and breaks up clinkers.
- the prongs of the fork element are distributed over the entire horizontal cross-section of the gasifier. This leads to excessive disturbance of the gasification process and to an increased tar loading of the product gas and thus to a deterioration of the product gas quality.
- the tapping element By the possibility of positioning a tapping/spike element at different points above the fuel-particle packed bed, the tapping element can be small and can still reach all areas of the fuel-particle packed bed.
- the tapping element enters the fuel-particle packed bed intermittently.
- the prong enters/spikes into the material column linearly from above and exits again along the same path.
- the driving means changes the position of the tapping element so that it does not retract into the same tapping passage. This repeated local tapping, temporally shifted at different locations of the fuel-particle packed bed, moves the gasifier bed and the sintering process of clinker particles, which would clog the complete gasifier cross-section, is disturbed.
- Suitable pourable fuel particles include biomass particles, particles of shredded plastics, or shredded waste particles that are carbonaceous.
- An advantageous embodiment includes a rotating means by which the tapping element is rotatable to another position above the fuel-particle packed bed in the gasifier, providing a structurally simple way of positioning the tapping element at different locations above the fuel-particle packed bed.
- tapping element For gasifiers with high power and thus with large horizontal cross-sectional area, it is advantageous to use a tapping element with two or three prongs.
- the prongs are mounted on a flat crossbar, and the driving means is configured such that the flat crossbar penetrates into the fuel-particle packed bed, enhancing the closing of cavities in the gasifier bed created by the gasification and sintering process.
- the support device comprises a water cooling system that reduces the thermal load on the support device and increases the service life of the support device.
- FIG. 1 a shows a schematic representation of a fixed-bed gasifier in a side view according to a first embodiment with a rotatable tapping element, wherein the tapping element is not inserted into the biomass;
- FIG. 1 b shows a schematic representation of the first embodiment, wherein the tapping element is inserted into a fuel-particle packed bed;
- FIG. 2 a shows a top view of a second embodiment with two clinker braking devices arranged side by side;
- FIGS. 2 b and 2 c show side views of the second embodiment
- FIG. 3 shows a third embodiment
- FIG. 4 shows a fourth embodiment
- FIG. 5 shows a fifth embodiment
- FIG. 6 shows a sixth embodiment of the invention.
- FIG. 1 a and FIG. 1 b schematically show a first embodiment of a fixed-bed gasifier according to the present invention for generating a product gas from pourable carbonaceous fuel particles 1 in the form of biomass particles, particles of plastic or other carbonaceous fuel particles.
- the fixed-bed gasifier comprises a gasifier container 2 having a rectangular cross-section with side walls 4 , an air supply 6 in the upper region of the gasifier 2 , a fuel supply 8 opening laterally into the gasifier 2 , a support device 10 for the fuel-particle packed bed in the form of a planar horizontally arranged grate 101 , a product gas and ash drain 12 from the region below the grate 10 , and a clinker braking device 14 .
- the clinker braking device 14 includes a tapping element 16 and a driving means 18 .
- the driving means 18 includes a rotatable shaft 20 for rotating the tapping element in a horizontal plane and a vertical movement means 22 for linearly reciprocating the tapping element 16 in a vertical direction.
- the tapping element 16 includes a vertically oriented prong 24 mounted on one end of a flat crossbar 26 . At its other end, the flat crossbar 26 is mounted to the rotatable shaft 20 .
- a vertical movement means 22 may be designed, for example, as a double hydraulic cylinder.
- the rotatable shaft 20 is preferably rotated by an electric motor.
- the rotatable shaft 20 with the tapping element 16 is arranged centrally in the gasifier 2 above the fixed bed of fuel particles 1 .
- This embodiment allows only local points to be reached on a circular line.
- small gasifiers with horizontal cross-sectional areas in the range from 10000 to ix) 25600 mm 2 this restriction is unproblematic.
- two or three prongs may be attached to the flat crossbar 26 instead of one prong 24 .
- FIGS. 2 a , 2 b and 2 c This use of two clinker braking devices 14 - 1 and 14 - 2 arranged side by side, as a second embodiment of the invention, is shown schematically in FIGS. 2 a , 2 b and 2 c .
- FIG. 2 a shows a top view of the open gasifier 2 with a rectangular cross-section with sides a and b, with a>b.
- the two clinker braking devices 14 - 1 and 14 - 2 are shown in the rectangular gasifier cross-section 2 .
- FIG. 2 b shows the second embodiment in a view perpendicular to the view in FIG. 2 a
- FIG. 2 c shows the second embodiment in a view perpendicular to the views in FIGS. 2 a and 2 b.
- FIG. 3 shows a third embodiment which differs from the first embodiment according to FIG. 1 in that a roller 102 rotating intermittently is provided as the support device 10 instead of the horizontal grate 101 .
- FIG. 4 shows a fourth embodiment, which differs from the third embodiment according to FIG. 3 in that two rollers 102 rotating intermittently with respect to each other are provided as the support device 10 instead of one roller.
- the rollers 102 are provided with teeth 28 to crush present clinker lumps.
- FIG. 5 shows a fifth embodiment, which differs from the first embodiment according to FIG. 1 in that instead of the horizontal grate 101 , an inclined grate 103 is provided as the support device 10 , as is known from DE 10 2018 205 115 A1.
- FIG. 6 shows a sixth embodiment that differs from the first embodiment shown in FIG. 1 in that a tumbling cone crusher 104 is provided as a support device 10 instead of the horizontal grate 101 .
- the clinker braking devices 14 can also be used to distribute the fuel particles 1 in the gasifier by twisting the tapping elements 16 during filling of the fuel particles.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Processing Of Solid Wastes (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019218310.7 | 2019-11-26 | ||
DE102019218310.7A DE102019218310A1 (de) | 2019-11-26 | 2019-11-26 | Festbettvergaser zum Erzeugen eines Produktgases aus schüttbaren kohlenstoffhaltigen Teilchen |
PCT/EP2020/083299 WO2021105171A1 (fr) | 2019-11-26 | 2020-11-25 | Gazéificateur à lit fixe servant à produire un produit gazeux à partir de particules carbonées en vrac |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2020/083299 A-371-Of-International WO2021105171A1 (fr) | 2019-11-26 | 2020-11-25 | Gazéificateur à lit fixe servant à produire un produit gazeux à partir de particules carbonées en vrac |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/497,781 Continuation US20240059990A1 (en) | 2019-11-26 | 2023-10-30 | Method of operating a fixed-bed gasifier for producing a product gas from pourable carbonaceous particles |
Publications (1)
Publication Number | Publication Date |
---|---|
US20220403265A1 true US20220403265A1 (en) | 2022-12-22 |
Family
ID=73854809
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/779,615 Abandoned US20220403265A1 (en) | 2019-11-26 | 2020-11-25 | Fixed bed gasifier for producing a product gas from pourable carbonaceous particles |
US18/497,781 Pending US20240059990A1 (en) | 2019-11-26 | 2023-10-30 | Method of operating a fixed-bed gasifier for producing a product gas from pourable carbonaceous particles |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US18/497,781 Pending US20240059990A1 (en) | 2019-11-26 | 2023-10-30 | Method of operating a fixed-bed gasifier for producing a product gas from pourable carbonaceous particles |
Country Status (4)
Country | Link |
---|---|
US (2) | US20220403265A1 (fr) |
EP (1) | EP4065667A1 (fr) |
DE (1) | DE102019218310A1 (fr) |
WO (1) | WO2021105171A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022106170A1 (de) | 2022-03-16 | 2023-09-21 | MHR Holding Pte. Ltd. | Festbettvergaser mit Walzen |
Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB208001A (en) * | 1922-11-30 | 1923-12-13 | Thomas Roland Wollaston | Improved method of operating the crusher rolls employed with gas producers, furnaces and the like |
US1939470A (en) * | 1928-04-20 | 1933-12-12 | Semet Solvay Eng Corp | Apparatus for producing combustible gas |
FI57779B (fi) * | 1974-02-15 | 1980-06-30 | Kamyr Inc | Foerfaringssaett och apparat foer framstaellning av gas ur gasalstrande material |
US4583992A (en) * | 1984-12-04 | 1986-04-22 | Buck Rogers Mfg. Co., Inc. | Biomass gasifier and charcoal producer |
US5226927A (en) * | 1991-02-13 | 1993-07-13 | Southern California Edison | Wood gasifier |
US7780750B2 (en) * | 2006-04-20 | 2010-08-24 | Brent Carman | Integrated biomass converter system |
US9096807B2 (en) * | 2012-03-09 | 2015-08-04 | General Electric Company | Biomass gasifier with disruption device |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1772643A (en) * | 1922-04-27 | 1930-08-12 | Gas Res Co | Gas producer |
GB315327A (en) * | 1928-07-11 | 1930-08-07 | Alfred Jadoul | Improvements in or relating to gas producers |
GB460554A (en) * | 1936-05-08 | 1937-01-29 | Karl Koller | Improvements in and relating to gas producers |
US8845769B2 (en) * | 2010-01-19 | 2014-09-30 | Zeropoint Clean Tech, Inc. | Downdraft gasifier with improved stability |
DE102018205115B4 (de) | 2018-04-05 | 2021-10-14 | Rosmarin Holdings Limited | Festbettvergaser zum Erzeugen eines Produktgases aus schüttbaren Biomasseteilchen |
-
2019
- 2019-11-26 DE DE102019218310.7A patent/DE102019218310A1/de active Pending
-
2020
- 2020-11-25 WO PCT/EP2020/083299 patent/WO2021105171A1/fr unknown
- 2020-11-25 EP EP20825144.7A patent/EP4065667A1/fr active Pending
- 2020-11-25 US US17/779,615 patent/US20220403265A1/en not_active Abandoned
-
2023
- 2023-10-30 US US18/497,781 patent/US20240059990A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB208001A (en) * | 1922-11-30 | 1923-12-13 | Thomas Roland Wollaston | Improved method of operating the crusher rolls employed with gas producers, furnaces and the like |
US1939470A (en) * | 1928-04-20 | 1933-12-12 | Semet Solvay Eng Corp | Apparatus for producing combustible gas |
FI57779B (fi) * | 1974-02-15 | 1980-06-30 | Kamyr Inc | Foerfaringssaett och apparat foer framstaellning av gas ur gasalstrande material |
US4583992A (en) * | 1984-12-04 | 1986-04-22 | Buck Rogers Mfg. Co., Inc. | Biomass gasifier and charcoal producer |
US5226927A (en) * | 1991-02-13 | 1993-07-13 | Southern California Edison | Wood gasifier |
US7780750B2 (en) * | 2006-04-20 | 2010-08-24 | Brent Carman | Integrated biomass converter system |
US9096807B2 (en) * | 2012-03-09 | 2015-08-04 | General Electric Company | Biomass gasifier with disruption device |
Non-Patent Citations (1)
Title |
---|
Machine Translation of FI-57779-B (3/1/2023) (Year: 2023) * |
Also Published As
Publication number | Publication date |
---|---|
DE102019218310A1 (de) | 2021-05-27 |
US20240059990A1 (en) | 2024-02-22 |
EP4065667A1 (fr) | 2022-10-05 |
WO2021105171A1 (fr) | 2021-06-03 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: MHR HOLDINGS PTE. LTD., SINGAPORE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOFMEISTER, MICHAEL;DRESSLER, HORST;SIGNING DATES FROM 20220525 TO 20220529;REEL/FRAME:060174/0331 |
|
AS | Assignment |
Owner name: MHR HOLDING PTE. LTD., SINGAPORE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:HOFMEISTER, MICHAEL;DRESSLER, HORST;REEL/FRAME:060393/0896 Effective date: 20220529 |
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Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
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STPP | Information on status: patent application and granting procedure in general |
Free format text: RESPONSE TO NON-FINAL OFFICE ACTION ENTERED AND FORWARDED TO EXAMINER |
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STPP | Information on status: patent application and granting procedure in general |
Free format text: FINAL REJECTION MAILED |
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STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |