Class / Patent application number | Description | Number of patent applications / Date published |
044608000 | "LOW-RANK" COAL (E.G., LIGNITE, ETC.) | 6 |
20080307700 | METHOD FOR CONVERTING COAL TO COKE - A coking method comprises in combination, the steps of providing a quantity of coals, providing a quantity of chemical change agents selected from the class of chemical change agents including: (i) acrylic latex, (ii) styrene-butadiene polymers, and (iii) natural and synthetic polymers, blending said chemical change agent with water in a ratio of about 40:60 to 60:40, spraying the provided quantity of lower quality coal with the blended water and chemical change agent in a ratio of about one ton of coal plus or minus ten percent to about four gallons of blended water and chemical change agent plus or minus ten percent, baking the coated coal in a reducing, heated, oxygen-free environment, including a heating element, at a temperature of about 1700 degrees Fahrenheit, cooling the resultant higher cold strength baked product by exposing said product to a water quench or cooling said product in a dry quench box. | 12-18-2008 |
20090255173 | PROCESS AND EQUIPMENT FOR PRODUCING SOLID FUEL BY USING COAL AS RAW MATERIAL - The present invention provides a process and an apparatus for producing a low-pyrophoricity, transportable, storable dewatered solid fuel from a low rank coal, in which the amount of heavy oil added can be reduced. | 10-15-2009 |
20110131873 | SYSTEMS AND METHODS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a fluid waste stream following mining or ore processing operations. | 06-09-2011 |
20150375141 | METHOD FOR CONTROLLING FLOW VOLUME OF COAL/KEROSENE SLURRY, AND APPARATUS FOR PRODUCING UPGRADED BROWN COAL - A method and apparatus that deterioration of the flow state of a coal/kerosene slurry while preventing the damage caused by overloading to thereby achieve excellent solid-liquid separation performance. In a solid-liquid separation supplying a dehydrated coal/kerosene slurry to a decanter-type centrifugal separator to separate the coal/kerosene slurry into a solid fraction and a liquid fraction, an opening degree target value is determined on the basis of the difference between a target value and an actually measured value of a torque that acts on a screw conveyor of the decanter-type centrifugal separator, and the opening degree of a flow volume control valve, which is arranged in the middle of a supply line for supplying the coal/kerosene slurry into the decanter-type centrifugal separator, is adjusted to the opening degree target value. | 12-31-2015 |
20160160141 | PRODUCTION METHOD OF REFORMED COAL - The purpose of the present invention is to increase the calorific value, and to obtain coal having further reduced mercury content. A drying step (S | 06-09-2016 |
20160168496 | COAL FOR BOILER FUEL | 06-16-2016 |
20080307700 | METHOD FOR CONVERTING COAL TO COKE - A coking method comprises in combination, the steps of providing a quantity of coals, providing a quantity of chemical change agents selected from the class of chemical change agents including: (i) acrylic latex, (ii) styrene-butadiene polymers, and (iii) natural and synthetic polymers, blending said chemical change agent with water in a ratio of about 40:60 to 60:40, spraying the provided quantity of lower quality coal with the blended water and chemical change agent in a ratio of about one ton of coal plus or minus ten percent to about four gallons of blended water and chemical change agent plus or minus ten percent, baking the coated coal in a reducing, heated, oxygen-free environment, including a heating element, at a temperature of about 1700 degrees Fahrenheit, cooling the resultant higher cold strength baked product by exposing said product to a water quench or cooling said product in a dry quench box. | 12-18-2008 |
20090255173 | PROCESS AND EQUIPMENT FOR PRODUCING SOLID FUEL BY USING COAL AS RAW MATERIAL - The present invention provides a process and an apparatus for producing a low-pyrophoricity, transportable, storable dewatered solid fuel from a low rank coal, in which the amount of heavy oil added can be reduced. | 10-15-2009 |
20110131873 | SYSTEMS AND METHODS FOR REMOVING FINELY DISPERSED PARTICULATE MATTER FROM A FLUID STREAM - Disclosed herein are systems for removing particulate matter from a fluid, comprising a particle functionalized by attachment of at least one activating group or amine functional group, wherein the modified particle complexes with the particulate matter within the fluid to form a removable complex therein. The particulate matter has preferably been contacted, complexed or reacted with a tethering agent. The system is particularly advantageous to removing particulate matter from a fluid waste stream following mining or ore processing operations. | 06-09-2011 |
20150375141 | METHOD FOR CONTROLLING FLOW VOLUME OF COAL/KEROSENE SLURRY, AND APPARATUS FOR PRODUCING UPGRADED BROWN COAL - A method and apparatus that deterioration of the flow state of a coal/kerosene slurry while preventing the damage caused by overloading to thereby achieve excellent solid-liquid separation performance. In a solid-liquid separation supplying a dehydrated coal/kerosene slurry to a decanter-type centrifugal separator to separate the coal/kerosene slurry into a solid fraction and a liquid fraction, an opening degree target value is determined on the basis of the difference between a target value and an actually measured value of a torque that acts on a screw conveyor of the decanter-type centrifugal separator, and the opening degree of a flow volume control valve, which is arranged in the middle of a supply line for supplying the coal/kerosene slurry into the decanter-type centrifugal separator, is adjusted to the opening degree target value. | 12-31-2015 |
20160160141 | PRODUCTION METHOD OF REFORMED COAL - The purpose of the present invention is to increase the calorific value, and to obtain coal having further reduced mercury content. A drying step (S | 06-09-2016 |
20160168496 | COAL FOR BOILER FUEL | 06-16-2016 |