| Patents for C10L 9 - Treating solid fuels to improve their combustion (3,817) |
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| 08/06/1991 | US5037450 Pyrolysis; sorbent particles remove sulfur by-products; nitrogen gases minimized |
| 07/30/1991 | US5036013 Pretreatment of coal to render water soluble |
| 07/30/1991 | US5035721 Drying, surface treatment to render hydrophobic, separation and agglomeration of fines |
| 07/24/1991 | CA2008470A1 Coal and oil upgrading by micro-agglomeration and thermopelletizing process ("comat" process) |
| 07/23/1991 | US5033230 Method for passivating particulate coal |
| 07/17/1991 | CN1053083A Coal combustion additive and its use |
| 07/11/1991 | WO1991005735A3 Active carbon |
| 07/10/1991 | EP0436508A2 Mutant microorganisms useful for cleavage of organic C-S bonds |
| 07/06/1991 | CA2032937A1 Mutant microorganisms useful for cleavage of organic c-s bonds |
| 07/02/1991 | CA1285515C Method for passivating particulate coal |
| 06/26/1991 | EP0434302A1 Process for upgrading coal |
| 06/19/1991 | CN1052327A Energy increasing and combustion intensifying agent for coal |
| 06/12/1991 | CN1052134A Additive for coal combustion |
| 06/05/1991 | EP0377616A4 Coal ash modification and reduction |
| 05/30/1991 | WO1991007478A1 Extraction of organic sulfur from coal by use of supercritical fluids |
| 05/22/1991 | CN1051583A Process for transforming inferior coal into high-grade coal |
| 05/16/1991 | WO1991006618A1 Coal beneficiation and utilization process |
| 05/16/1991 | WO1991006617A1 Apparatus and process for steam treating carbonaceous material |
| 05/02/1991 | WO1991005735A2 Active carbon |
| 04/24/1991 | EP0423859A1 Process for feeding coal filter sludge |
| 04/17/1991 | CN1012374B Method for continuous chemical reduction and removal of mineral matter contained in carbon structures |
| 04/16/1991 | US5007987 Heating to reduce friability-immediately calcining |
| 04/10/1991 | EP0421979A1 Process for diminishing the sulfur emission in sintering processes |
| 04/07/1991 | CA2026828A1 Process of feeding coal slurry filtration sludge |
| 04/04/1991 | WO1991004310A1 Method for reducing sox emissions during the combustion of sulfur-containing combustible compositions |
| 03/26/1991 | US5002888 Bacillus; air pollution control |
| 03/21/1991 | WO1991003530A1 Improved beneficiation of carbonaceous materials |
| 03/13/1991 | CN1049856A Chemical deliming method of natural graphite and coal |
| 03/05/1991 | US4997457 Colored flame solid fuel and method |
| 02/19/1991 | CA1280382C Process for heat treatment of coal |
| 02/13/1991 | CN1049178A Disconnected body type convenient chafing dish charcoal |
| 01/31/1991 | DE3925205A1 Sulphur-contg. coke conditioning - by treating with hot steam-contg. gas at near atmospheric pressure, and introducing oxygen |
| 01/23/1991 | EP0409015A2 Method for the production of raw material moulded bodies and raw material moulded bodies so produced |
| 01/09/1991 | EP0406287A1 A method for incineration of refuse |
| 01/01/1991 | US4981667 Removal of sulfur from petroleum coke with lime |
| 12/18/1990 | US4978106 Iron reduction apparatus |
| 12/13/1990 | DE3925428C1 Carbonised lignite for purification of waste water - prepd. by open hearth with sulphuric acid by doping coke |
| 11/29/1990 | DE3916597A1 Eliminating residue from processing cattle or pig manure - by mixing with lignite dust or coal dust |
| 11/28/1990 | CN1047330A Energy-saving additive for coal combustion |
| 11/21/1990 | CN1010482B Method for passivating particulate coal |
| 11/14/1990 | EP0396832A1 Enzymatic coal desulfurization |
| 11/06/1990 | US4968324 Reduced nitrogen oxide in combustion gases |
| 10/31/1990 | CN1046551A Coal saving combustion additive |
| 10/30/1990 | US4966608 Process for removing pyritic sulfur from bituminous coals |
| 10/23/1990 | US4964881 Calcium impregnation of coal enriched in CO2 using high-pressure techniques |
| 10/10/1990 | EP0084559B2 Process for preparing a coal-water slurry |
| 10/02/1990 | US4960699 Enzymatic depolymerization of coal |
| 10/02/1990 | CA1274685A1 Partial oxidation process |
| 09/18/1990 | US4957722 Production of partially calcined carbonaceous reductant using steam |
| 09/18/1990 | CA1274082A1 Method and emulsions for the control of dust |
| 09/04/1990 | US4953481 Method for control of slag build-up in solid waste incinerators |
| 08/07/1990 | US4946474 Process for beneficiation of coal by selective caking |
| 07/18/1990 | EP0377616A1 Coal ash modification and reduction. |
| 07/17/1990 | US4941888 Commodity storage pile protection with a rainwater holding sponge |
| 07/11/1990 | CN1043734A Technology for lowering so2 content in flue gas of boiler |
| 06/28/1990 | DE3842716A1 Process for the pollutant-free combustion of coal |
| 06/28/1990 | DE3842714A1 Method for operating a power station |
| 06/27/1990 | EP0374318A1 Method for improving the properties of premium coke |
| 06/26/1990 | US4936047 Method of capturing sulfur in coal during combustion and gasification |
| 06/26/1990 | US4936045 Demineralization of coal |
| 05/30/1990 | EP0370144A1 Coal-moisture control process |
| 05/16/1990 | EP0368834A1 Aqueous combustion catalysts and fuels |
| 05/01/1990 | CA1268444A1 Process for improving low-rank coal and apparatus therefor |
| 05/01/1990 | CA1268329A1 Drying plant for brown coals of high water content |
| 04/25/1990 | CN1041609A Coal combustion-supporting agent |
| 04/18/1990 | EP0364074A1 Prevention of formation of nickel subsulfide in partial oxidation of heavy liquid and/or solid fuels |
| 04/17/1990 | US4918018 Microorganism for use in industrial processes |
| 04/11/1990 | CN1041118A Process for removing pyritic culfur from bituminous coals |
| 03/27/1990 | US4912256 Process for the oxidation of fine coal |
| 03/21/1990 | CN1007264B Additives for modifying low grade coal and gangue |
| 02/22/1990 | WO1990001530A1 Process for removing pyritic sulfur from bituminous coals |
| 02/08/1990 | DE3826520A1 Process and apparatus for the pyrolysis of sewage sludge |
| 01/25/1990 | DE3816524A1 Environment-friendly coal mixtures |
| 01/24/1990 | CN1039052A Process for inhibiting the spontaneous oxidation of low rank coal |
| 01/17/1990 | CN1038830A Technological process and devices for transforming imflammable pollutants or wastes into clean energy sources and useful products |
| 01/16/1990 | US4894122 Electrothermal, multistage fluidized beds |
| 01/10/1990 | EP0349548A1 Process for removing sulfur gases from a combustion gas |
| 01/03/1990 | CN1038461A Honeycomb briquette |
| 12/19/1989 | US4888029 Reaction with alcohol, hydrocarbon or hydrogen in presence of oxygen or nitric oxide promoters; for organic or inorganic sulfur compounds |
| 12/19/1989 | US4887722 Method for beneficiating by carbonaceous refuse |
| 12/13/1989 | EP0346100A1 Combustion of carbon containing materials in a furnace |
| 12/13/1989 | EP0345387A1 Process for inhibiting the spontaneous oxidation of low rank coal |
| 12/13/1989 | CN1037919A Method for providing improved solid fuels from agglomerated subbituminous coal |
| 12/12/1989 | US4886522 Process, for the desulfurization of coal |
| 12/12/1989 | US4886521 Decaking of coal or oil shale during pyrolysis in the presence of iron oxides |
| 11/21/1989 | US4881946 Process for the beneficiation of coal by selective caking |
| 11/14/1989 | US4880858 Coal fines and polymers |
| 11/08/1989 | EP0341222A2 Process for the chemical-biological desulphurization of coal |
| 11/02/1989 | DE3813376A1 Environmentally advantageous coal |
| 10/24/1989 | US4875979 Treatment of petroleum cokes to inhibit coke puffing |
| 10/24/1989 | US4875905 Method of preparing a high heating value fuel product |
| 10/05/1989 | WO1989009253A1 A method for incineration of refuse |
| 09/26/1989 | US4869182 Magnesium carbonate or calcium carbonate |
| 09/26/1989 | CA1260868A1 Process for calcining green coke |
| 09/26/1989 | CA1260420A1 Method for removing pyritic, organic, and elemental sulfur from coal |
| 09/19/1989 | US4867755 Preparation of composite fuels, with reduced sulfur emission characteristics, from oily and carbonaceous wastes |
| 09/19/1989 | CA1259490A1 Method and apparatus for use in preparing biomass particles for fuel and for use as chemical feed stock |
| 09/06/1989 | CN2043974U Manual charcoal machine |
| 09/05/1989 | US4863485 Fuel briquettes |
| 08/29/1989 | US4861723 Microbiological desulfurization of coal and coal water admixture to provide a desulfurized fuel |