Process for flash carbonization of biomass
Patent 6790317 Issued on September 14, 2004. Estimated Expiration Date: 
May 20, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 20, 2022. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesMethod for producing fuel gas from organic material, capable of self-sustaining operation Process for charcoal production from woody and herbaceous plant material Process for charcoal production from woody and herbaceous plant material Patent #: 5551958 InventorAssigneeApplicationNo. 10152276 filed on 05/20/2002US Classes:201/35, CARBONIZING UNDER PNEUMATIC PRESSURE OR VACUUM201/21, FEED OF TWO OR MORE CARBONACEOUS MATERIAL (AT LEAST THE PREDOMINATE ONE BEING SOLID)201/25, FEED OTHER THAN COAL, OIL SHALE OR WOOD44/589, Vegetation or refuse44/590, Wood, sawdust or paper44/543Solid fiber or particle in coating (e.g., sawdust, etc.)ExaminersPrimary: Johnson, Jerry D.Assistant: Doroshenk, Alexa A. Attorney, Agent or FirmInternational ClassesC10B 5300C10B 5700 C10B 5704 C10L 540 AbstractA low-energy input process for the pyrolytic conversion of biomass to charcoal or carbonized charcoal is provided. The biomass is sealed in a container, pressurized with air and heated to ignition. Control of pressure by input of air and release of gases to maintain successively lower pressure levels results in a typical time for the conversion of less than 30 minutes.Other References
Field of SearchCARBONIZING UNDER PNEUMATIC PRESSURE OR VACUUMFEED OF TWO OR MORE CARBONACEOUS MATERIAL (AT LEAST THE PREDOMINATE ONE BEING SOLID) FEED OTHER THAN COAL, OIL SHALE OR WOOD WITH MEASURING, TESTING OR INSPECTING Vegetation or refuse Wood, sawdust or paper Solid fiber or particle in coating (e.g., sawdust, etc.) REFUSE INCINERATOR PROCESS Incinerating refuse | |
