US20070181047A1 - Method of gasification of waste - Google Patents
Method of gasification of waste Download PDFInfo
- Publication number
- US20070181047A1 US20070181047A1 US10/595,320 US59532004A US2007181047A1 US 20070181047 A1 US20070181047 A1 US 20070181047A1 US 59532004 A US59532004 A US 59532004A US 2007181047 A1 US2007181047 A1 US 2007181047A1
- Authority
- US
- United States
- Prior art keywords
- waste
- submitting
- steps
- dried
- gasification
- 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
- 239000002699 waste material Substances 0.000 title claims abstract description 76
- 238000000034 method Methods 0.000 title claims abstract description 53
- 238000002309 gasification Methods 0.000 title claims abstract description 18
- 238000001035 drying Methods 0.000 claims abstract description 21
- 238000001914 filtration Methods 0.000 claims abstract description 8
- 239000007787 solid Substances 0.000 claims description 10
- 210000003746 feather Anatomy 0.000 claims description 8
- 239000007800 oxidant agent Substances 0.000 claims description 8
- 239000002910 solid waste Substances 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000010808 liquid waste Substances 0.000 claims description 6
- 239000000725 suspension Substances 0.000 claims description 3
- 239000007789 gas Substances 0.000 description 32
- 239000007788 liquid Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000008247 solid mixture Substances 0.000 description 4
- 239000008280 blood Substances 0.000 description 3
- 210000004369 blood Anatomy 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 239000010802 sludge Substances 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 210000000988 bone and bone Anatomy 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- OSVXSBDYLRYLIG-UHFFFAOYSA-N dioxidochlorine(.) Chemical compound O=Cl=O OSVXSBDYLRYLIG-UHFFFAOYSA-N 0.000 description 2
- 239000010791 domestic waste Substances 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000011049 filling Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 238000009877 rendering Methods 0.000 description 2
- 238000012216 screening Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000002028 Biomass Substances 0.000 description 1
- 239000004155 Chlorine dioxide Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000007864 aqueous solution Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 235000019398 chlorine dioxide Nutrition 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 238000009264 composting Methods 0.000 description 1
- 239000004035 construction material Substances 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- RTZKZFJDLAIYFH-UHFFFAOYSA-N ether Substances CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 1
- 125000001033 ether group Chemical group 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 210000002683 foot Anatomy 0.000 description 1
- 150000002240 furans Chemical class 0.000 description 1
- 210000001035 gastrointestinal tract Anatomy 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 210000003128 head Anatomy 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 244000144977 poultry Species 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 230000002250 progressing effect Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 238000003786 synthesis 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
- C10J3/06—Continuous processes
- C10J3/10—Continuous processes using external heating
-
- 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
- C10J2300/0903—Feed preparation
-
- 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
- C10J2300/0903—Feed preparation
- C10J2300/0906—Physical processes, e.g. shredding, comminuting, chopping, sorting
-
- 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
- C10J2300/0903—Feed preparation
- C10J2300/0909—Drying
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1223—Heating the gasifier by burners
-
- 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
- C10J2300/12—Heating the gasifier
- C10J2300/1246—Heating the gasifier by external or indirect heating
-
- 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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/164—Integration of gasification processes with another plant or parts within the plant with conversion of synthesis gas
- C10J2300/1643—Conversion of synthesis gas to energy
- C10J2300/165—Conversion of synthesis gas to energy integrated with a gas turbine or gas motor
-
- 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
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1693—Integration of gasification processes with another plant or parts within the plant with storage facilities for intermediate, feed and/or product
-
- 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
- C10J2300/18—Details of the gasification process, e.g. loops, autothermal operation
- C10J2300/1807—Recycle loops, e.g. gas, solids, heating medium, water
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/12—Heat utilisation in combustion or incineration of waste
Definitions
- This invention relates to a method of treating waste.
- waste treatment methods include for example: incineration, anaerobic digestion, land fill, thermophilic composting, by-product rendering, gasification and pyrolysis.
- the present invention is in essence an improvement to a gasification method of treating waste.
- the closest prior art known to the applicant comprises a drier using a turbulent flow of heated air and a centrifuge action followed by a gas converter to convert waste into gas suitable for combustion. This prior art method takes untreated general domestic waste and submits the waste directly to this two-step process of drying and gasification.
- One of the objectives of the present invention is to present a method which can be suitable for the treatment of not only primarily solid domestic waste but also can be used to treat waste with a high liquid content. It is a ether objective of this invention to provide a method which is suitable for liquid/solid mixture waste treatment.
- the invention also aims to provide a method which has improved thermal characteristics.
- the invention further aims at reducing or eliminating altogether undesirable odour emission.
- the invention provides a method of treating waste comprising the steps of drying said waste and submitting said dried waste to gasification for producing a combustible gas, characterised in that the method comprises the step of separating the waste into a portion for shredding and a portion for filtering prior to drying.
- This combination of method steps is particularly advantageous because it allows the method to apply to waste which is other than pure solid waste and particularly to waste where there is a portion of solid, associated with a high portion of liquid/solid mixture waste.
- This method contributes to maximising the amount of waste susceptible of being submitted to drying and gasification. This will also reduce the extent to which waste liquid would have to be treated to meet stringent environmental levels.
- the invention provides a method of treating waste, comprising the steps of drying said waste and submitting said waste to gasification for producing a combustible gas, characterised in that the method comprises the step of submitting liquid waste with solids in suspension in the liquid to filtering means to substantially separate primarily solid waste from primarily liquid waste prior to drying said primarily solid waste.
- the invention provides a method of treating waste, comprising the steps of drying said waste by supplying heated air to said waste, submitting said dried waste to gasification for producing a combustible gas, burning said gas to generate electricity and exchanging heat from the burning of the gas with the air supply to the waste for drying the waste.
- the invention provides a method of treating waste, comprising the steps of collecting and cooling waste, drying said waste and submitting said dried waste to gasification for producing a combustible gas.
- Cooling waste marks a radical departure from the prior art teaching of either simply adequately sealing waste or treating gaseous emissions from waste.
- the method when applied to waste containing feathers comprises the step of submitting quills of feathers to a cutter with a plurality of cutter blades so configured to section the quills.
- This is particularly advantageous, it reduces the risk of any quills progressing through the system and possibly blocking certain areas.
- This method therefore is advantageous because it reduces the frequency at which any apparatus implementing this method would have to be serviced as a consequence of quills building up in a particular location.
- the method comprises the step of routing the exhausts from the drying step and the gasification step to a single thermal oxidiser.
- the invention also provides an apparatus adapted to carry out a method in accordance with any of the preceding aspects.
- the single figure accompanying this application illustrates one example of the method of the present invention.
- the method illustrated shows the arrival of dry material in lorries and the arrival of fluid/solid mixture such as a slurry in a pipe line.
- the unloading bay may be isolated from the rest of the plant by sealed doors. Means may be provided to ensure that the building operates under a negative pressure to reduce the possibility of gases escaping.
- the lorry may tip its load into a sunken pit from where the waste can be screw fed onto either a belt conveyor or any other transport means as selected by the person skilled in the art.
- the pit may comprise a sealed lid to prevent odour leakage.
- a drainage system is envisaged to pump any spills during unloading to an effluent treatment plant. Strainers (for example with 4 mm drain traps) may be fitted to the drainage system to capture solids for further treatment.
- the method envisages that waste would be stored prior or during treatment in order to allow the method to be flexible.
- the waste may be collected for example in storage tanks where for tanks containing liquid/solid mixtures, cooling coils may be employed to maintain a stable temperature and reduce fugitive losses which are typically present during hot weather. These tanks will be typically enclosed, lidded vessels. These tanks may be emptied by pump or screw auger should the waste stored be suitable for flowing.
- the tanks envisaged may incorporate vents fitted with carbon filters to prevent odour escaping during filling or breathing.
- the tanks may also be fitted with level sensors and alarms to prevent over-filling.
- the waste Prior to the steps of drying and gasification, the waste may be pre-treated.
- the method envisages a step of separating the waste into a portion for shredding and a portion for filtering prior to drying.
- a mixture of carcass, gut, bone, head, feet, feathers, sludge, blood may be separated into a solid portion including bones etc and a solid/liquid mixture.
- This separation may be carried out by a screening process (for example static wedge, inclined screw, rotary drum).
- the primarily solid waste product from the screening filtering process may be broken down by shredding.
- macerators are commonly used in the rendering industry for cutting up meat waste.
- Waste with high liquid content may be submitted to other filtering means such as belt presses which could remove a large percentage of water.
- the invention also envisages, as a further filtering means, the use of a centrifuge which could be particularly useful for blood and effluent treatment plant sludge.
- a centrifuge being fed sludge, blood and mixed material may produce for example a de-watered cake of for example 24% and 39% dry solids.
- the calce produced by the centrifuge may be used as biomass fuel or used as soil improver or landfill (as shown on the flow chart attached).
- the waste will be pre-treated to be about 30% dry so as to be ready to be fed to a drier.
- the drier may be of the kind which has an air heater pumping hot air into a mixture chamber into which waste is fed and mixed to the hot air and flows through the mixer in a turbulent flow.
- the mixture of heated air and waste may be submitted to a centrifuge to separate the now dried solid waste and the exhaust air.
- the dried waste may be stored for further treatment or directly channelled to a gas converter for gasification.
- the gas converter may be formed of a sealed vessel with a heated outer skin. The heat of the gas converter may be supplied by gas burners arranged at regular intervals around the vessel.
- the sealed vessel essentially excludes air and may run at a temperature of approximately 800°. Due to the small particle size resulting from the pre-treatment carried out on the waste the particles of waste rapidly convert to a clean, high energy gas with a relatively small portion of ash generated (approximately 7% of input).
- the vessel may be of the kind which allows ash particles to fall by gravity to the base of the chamber.
- the resulting ash consisting of residual carbon plus inert materials may be then cooled by a non-contact water jacket and collected in dedicated containers.
- the ash may be used for road building, construction materials and fertilisers.
- the gas produced by the gas converter may be ducted to a blast cooler for rapid cooling from 800° to 22°. The cooler will be selected so as to avoid synthesis and formation of dioxins and furans.
- the cooled gas may then be bubbled through a scrubber using an aqueous solution of chlorine dioxide as the absorbent.
- the gas may be fed to gas engines or gas turbines or any other suitable electricity generating means selected by the person skilled in the art from known alternatives.
- the skilled person may select a gas engine which is turbo charged and spark ignited.
- the engine exhaust gases- may be ducted back to the drier in order to contribute to the heating of the drier's input air.
- Emissions from the gas engine and the gas converter may be channelled to a thermal oxidiser which is adapted to control emissions to the atmosphere.
- Tie exhaust from the drier, centrifuge or other gas emissions may all be channelled to the thermal oxidiser which would limit any discharge to the atmosphere.
- gas generated by the gas converter it is also envisaged to use the gas generated by the gas converter to fuel the gas converter itself and/or the thermal oxidiser. This would reduce the amount of gas necessary to be supplied to the gas converter and would cause the system to be largely self-fuelling.
- a natural gas may however be supplied to the gas converter and/or thermal oxidiser during a start up phase and means may be provided to switch between the natural gas supply and the gas generated by the converter once a threshold of converted gas is reached.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (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 |
|---|---|---|---|
| GB0323497.8 | 2003-10-08 | ||
| GBGB0323497.8A GB0323497D0 (en) | 2003-10-08 | 2003-10-08 | A method of treating waste |
| PCT/GB2004/003818 WO2005042674A1 (fr) | 2003-10-08 | 2004-09-03 | Procede pour gazeifier des dechets |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US20070181047A1 true US20070181047A1 (en) | 2007-08-09 |
Family
ID=29433455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US10/595,320 Abandoned US20070181047A1 (en) | 2003-10-08 | 2004-09-03 | Method of gasification of waste |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US20070181047A1 (fr) |
| EP (1) | EP1680487A1 (fr) |
| GB (1) | GB0323497D0 (fr) |
| WO (1) | WO2005042674A1 (fr) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729298A (en) * | 1971-07-09 | 1973-04-24 | Union Carbide Corp | Solid refuse disposal process and apparatus |
| US3807644A (en) * | 1972-03-16 | 1974-04-30 | Univ Iowa State Res Found Inc | Chopper pump |
| US4429643A (en) * | 1980-06-30 | 1984-02-07 | 456577 Ontario Limited | Apparatus and method for treating sewage sludge |
| US4432290A (en) * | 1979-10-30 | 1984-02-21 | The Agency Of Industrial Science And Technology | Method of pyrolyzing organic material using a two-bed pyrolysis system |
| US5431702A (en) * | 1993-03-25 | 1995-07-11 | Dynecology, Inc. | Waste conversion process and products |
| US6112677A (en) * | 1996-03-07 | 2000-09-05 | Sevar Entsorgungsanlagen Gmbh | Down-draft fixed bed gasifier system and use thereof |
| US20030177963A1 (en) * | 2002-03-25 | 2003-09-25 | Industrial Energy Management Solutions Inc. | Gasification system |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3047192A1 (de) * | 1980-12-15 | 1982-07-22 | Paul Gerhard 8580 Bayreuth Langer | Verfahren und anlage zum geruchfreimachen von guelle |
| NL9400596A (nl) * | 1994-04-15 | 1995-11-01 | Robertus Maria Claesen | Mestbewerkingssysteem. |
| DE19857870A1 (de) * | 1998-12-15 | 2000-06-21 | Res & Dev Of Renewable Energy | Verfahren und Vorrichtung zur vollständigen und schadstoffreien Konversion von Material |
| WO2001058244A2 (fr) * | 2000-02-02 | 2001-08-16 | Coöperatief Advies En Onderzoeksburo U.A. Ecofys | Systeme comprenant un appareil et un procede, destine a generer de l"energie a partir de biomasse |
| NL1016019C2 (nl) * | 2000-08-25 | 2002-02-26 | B T G B V | Werkwijze en inrichting voor het verwerken van dierlijke mest. |
| ES2305528T3 (es) * | 2002-11-18 | 2008-11-01 | Samson Bimatech I/S | Metodo de tratamiento de papilla de estiercol. |
| DE10346892B4 (de) * | 2002-12-23 | 2007-03-01 | Bernd Rüdiger Kipper | Verfahren und Vorrichtung zur Aufbereitung von organische Bestandteile enthaltenden festen und flüssigen Abfallgemischen |
-
2003
- 2003-10-08 GB GBGB0323497.8A patent/GB0323497D0/en not_active Ceased
-
2004
- 2004-09-03 WO PCT/GB2004/003818 patent/WO2005042674A1/fr not_active Ceased
- 2004-09-03 US US10/595,320 patent/US20070181047A1/en not_active Abandoned
- 2004-09-03 EP EP04768365A patent/EP1680487A1/fr not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3729298A (en) * | 1971-07-09 | 1973-04-24 | Union Carbide Corp | Solid refuse disposal process and apparatus |
| US3807644A (en) * | 1972-03-16 | 1974-04-30 | Univ Iowa State Res Found Inc | Chopper pump |
| US4432290A (en) * | 1979-10-30 | 1984-02-21 | The Agency Of Industrial Science And Technology | Method of pyrolyzing organic material using a two-bed pyrolysis system |
| US4429643A (en) * | 1980-06-30 | 1984-02-07 | 456577 Ontario Limited | Apparatus and method for treating sewage sludge |
| US5431702A (en) * | 1993-03-25 | 1995-07-11 | Dynecology, Inc. | Waste conversion process and products |
| US6112677A (en) * | 1996-03-07 | 2000-09-05 | Sevar Entsorgungsanlagen Gmbh | Down-draft fixed bed gasifier system and use thereof |
| US20030177963A1 (en) * | 2002-03-25 | 2003-09-25 | Industrial Energy Management Solutions Inc. | Gasification system |
| US6871603B2 (en) * | 2002-03-25 | 2005-03-29 | Home Farms Technologies Inc. | Gasification system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1680487A1 (fr) | 2006-07-19 |
| GB0323497D0 (en) | 2003-11-12 |
| WO2005042674A1 (fr) | 2005-05-12 |
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