Patent classifications
B01D53/40
Method for reducing NOx emissions from gasification power plants
A method is provided for thermally processing waste to produce steam and generate energy while minimizing air pollutants in a staged thermal reactor. The method includes gasifying the waste to convert the waste to a fuel gas and a substantially carbon free, inert, granulated, sintered mineral ash and reforming the fuel gas auto-thermally to minimize creation of nitrogen oxide when the fuel gas is combusted. The method further includes burning the reformed fuel gas to minimize creation of nitrogen oxide in a flame region of a fuel gas burner and recirculating cooled flue gas to control oxygen content and temperature during the reforming operation and the burning operation. In one example, reforming the fuel gas converts non-molecular nitrogen species into molecular nitrogen in an auto-thermal non-catalytic reformer unit by decomposition reactions promoted by a prevailing reducing gas atmosphere.
Processes for producing high-purity trifluoroiodomethane
The present disclosure provides a method for purifying trifluoroiodomethane. The method includes providing a process stream comprising trifluoroiodomethane, organic impurities, and acid impurities; reacting the process stream with a basic aqueous solution, the basic aqueous solution comprising water and at least one base selected from the group of an alkali metal carbonate and an alkali metal hydroxide; and separating at least some of the organic impurities from the process stream.
PARTICULATE MATERIAL RETAINING DEVICE AND ATMOSPHERIC ACID GAS NEUTRALIZER AND NEUTRALIZING SUBSTANCE FOR SAID GASES
The present invention is directed to a novel mechanical device containing a liquid solution recirculating inside the device in the form of programmed oriented movements which achieve to trap the contaminants resulting from carburant combustion processes, such as particulate material, smoke, soot, fly ashes, greenhouse type gases in order to remove them from the air and to achieve its neutralization thus providing a clean air and suitable to be reinserted into the environment and the substance obtained by the device is reinserted into the production chain as a raw material applicable to a plurality of industries.
PARTICULATE MATERIAL RETAINING DEVICE AND ATMOSPHERIC ACID GAS NEUTRALIZER AND NEUTRALIZING SUBSTANCE FOR SAID GASES
The present invention is directed to a novel mechanical device containing a liquid solution recirculating inside the device in the form of programmed oriented movements which achieve to trap the contaminants resulting from carburant combustion processes, such as particulate material, smoke, soot, fly ashes, greenhouse type gases in order to remove them from the air and to achieve its neutralization thus providing a clean air and suitable to be reinserted into the environment and the substance obtained by the device is reinserted into the production chain as a raw material applicable to a plurality of industries.
COOPERATIVE CHEMICAL ADSORPTION OF ACID GASES IN FUNCTIONALIZED METAL-ORGANIC FRAMEWORKS
A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.
COOPERATIVE CHEMICAL ADSORPTION OF ACID GASES IN FUNCTIONALIZED METAL-ORGANIC FRAMEWORKS
A system and method for acid gas separations using porous frameworks of metal atoms coordinatively bound to polytopic linkers that are functionalized with basic nitrogen ligands that expose nitrogen atoms to the pore volumes forming adsorption sites. Adjacent basic nitrogen ligands on the metal-organic framework can form an ammonium from one ligand and a carbamate from the other. The formation of one ammonium carbamate pair influences the formation of ammonium carbamate on adjacent adsorption sites. Adsorption of acid gas at the adsorption sites form covalently linked aggregates of more than one ammonium carbamate ion pair. The acid gas adsorption isotherm can be tuned to match the step position with the partial pressure of acid gas in the gas mixture stream through manipulation of the metal-ligand bond strength by selection of the ligand, metal and polytopic linker materials.
EXHAUST GAS TREATMENT SYSTEM
An exhaust gas treatment system capable of purifying exhaust gas containing moisture includes superheated steam generating pipes (20, 40) and a housing (10). The superheated steam generating pipe (20, 40) is formed of a material capable of generating heat by energization, and has a flow path (200, 400) through which exhaust gas can flow, and moisture contained in the exhaust gas flowing through the flow path is converted into superheated steam by the heat. The housing (10) is provided to accommodate the superheated steam generating pipe, is formed to allow the exhaust gas before being introduced into the flow path to flow therethrough and can preheat the exhaust gas by the heat of the superheated steam generating pipe.
EXHAUST GAS TREATMENT SYSTEM
An exhaust gas treatment system capable of purifying exhaust gas containing moisture includes superheated steam generating pipes (20, 40) and a housing (10). The superheated steam generating pipe (20, 40) is formed of a material capable of generating heat by energization, and has a flow path (200, 400) through which exhaust gas can flow, and moisture contained in the exhaust gas flowing through the flow path is converted into superheated steam by the heat. The housing (10) is provided to accommodate the superheated steam generating pipe, is formed to allow the exhaust gas before being introduced into the flow path to flow therethrough and can preheat the exhaust gas by the heat of the superheated steam generating pipe.
AIR FILTERS COMPRISING POLYMERIC SORBENTS FOR REACTIVE GASES
An air filter including a filter support that supports polymeric sorbent particles. The polymeric sorbent is the reaction product of a divinylbenzene/maleic anhydride precursor polymeric material with a nitrogen-containing compound. The air filter may be used for capturing e.g. reactive gases.
AIR FILTERS COMPRISING POLYMERIC SORBENTS FOR REACTIVE GASES
An air filter including a filter support that supports polymeric sorbent particles. The polymeric sorbent is the reaction product of a divinylbenzene/maleic anhydride precursor polymeric material with a nitrogen-containing compound. The air filter may be used for capturing e.g. reactive gases.