Patent application number | Description | Published |
20090057202 | METHODS AND SYSTEMS FOR REMOVING VANADIUM FROM LOW-GRADE FUELS - A method for treating fuel containing vanadium including extracting vanadium from the fuel with an adsorption material and fractionating the fuel into a light oil fraction and a heavy fuel fraction. The light fuel fraction has a reduced amount of vanadium. Systems for fuel preparation are also provided. | 03-05-2009 |
20090259082 | INTEGRATED SYSTEM AND METHOD FOR PRODUCING FUEL COMPOSITION FROM BIOMASS - A method of producing a fuel composition from a bio-oil feedstock is provided, wherein the bio-oil feedstock is subjected to a step of oil extraction to produce a bio-oil and deoiled residue. At least a portion of the deoiled residue is gasified to produce a hydrogen-containing gas. The bio-oil is subjected to an upgrading process to ultimately produce a fuel composition. At least a part of the hydrogen-containing gas produced in the gasification of deoiled residue is used in the upgrading process of producing a fuel composition. The upgrading process, which can involve hydro-treating, hydroisomerization and at least one separation step, produces light hydrocarbons in addition to the product fuel composition. The light hydrocarbons can be used in the gasification operation, e.g., to reduce tar formation. | 10-15-2009 |
20100018478 | COMBUSTION METHOD, SYSTEM, AND ARTICLE - A method includes mixing air and converted fuel from an on-board fuel converter in a fuel mixer to form an air-converted fuel mixture, the air-converted fuel mixture includes a short chain hydrocarbon; mixing the air-converted fuel mixture with a high specific heat diluent to form an air-diluent-converted fuel mixture; mixing the air-diluent-converted fuel mixture with a first amount of fuel to form a homogenous mixture. A system and article are included. | 01-28-2010 |
20100024400 | EMISSION CONTROL SYSTEM AND METHOD - A system includes an exhaust conduit configured to conduct a stream of exhaust gas, wherein the exhaust conduit comprises a selective catalytic reduction catalyst reactor comprising a first catalyst composition; an fuel source configured to introduce a fuel into the exhaust gas stream within the exhaust conduit upstream of the selective catalytic reduction catalyst reactor; a catalytic partial oxidation reformer in fluid communication with the exhaust gas stream and upstream from the selective catalytic reduction catalyst reactor, wherein the catalytic partial oxidation reformer can introduce a hydrogen-rich syngas co-reductant into the exhaust gas stream, when a temperature of the exhaust fluid is less than a determined threshold temperature. | 02-04-2010 |
20100146947 | EMISSIONS CONTROL SYSTEM AND METHOD - A system comprising a fuel converter comprising a catalyst composition capable of converting a fuel into a selected one or both of a syngas reductant and a short chain hydrocarbon reductant, wherein the catalyst composition comprises: cracking sites that perform a cracking function when a temperature of an exhaust fluid is greater than a predetermined threshold temperature, wherein the cracking function converts long chain hydrocarbon molecules to short chain hydrocarbon molecules; and partial oxidation sites that perform a catalytic partial oxidation function when the temperature of the exhaust fluid is less than the predetermined threshold temperature, wherein the catalytic partial oxidation function oxidizes the fuel to produce the syngas reductant; and a selective catalytic reduction catalyst reactor in fluid communication with the fuel converter and the exhaust fluid. | 06-17-2010 |
20100175379 | PRE-MIX CATALYTIC PARTIAL OXIDATION FUEL REFORMER FOR STAGED AND REHEAT GAS TURBINE SYSTEMS - A gas turbine system includes a fuel reformer comprising: a fuel inlet; an oxygen inlet; a pre-mixing zone configured to mix the fuel and the oxygen in a pre-mixing device to form a gaseous pre-mix; wherein the pre-mixing device comprises a flow conditioning device configured to pre-condition the fuel stream, wherein the flow conditioning device is disposed upstream of the oxygen inlet; a diffuser disposed downstream of the flow conditioning device; a catalytic partial oxidation zone disposed downstream of the diffuser, wherein the catalytic partial oxidation zone comprises a catalyst composition configured to react the fuel and the oxygen to generate a syngas. The generated syngas is then mixed with rest of the fuel to form a hydrogen-enriched fuel mixture, which is then sent to the combustion chamber of a gas turbine to reduce the NOx emission and extend the lean blow out limit. | 07-15-2010 |
20100180771 | FLUIDIZED BED SYSTEM FOR REMOVING MULTIPLE POLLUTANTS FROM A FUEL GAS STREAM - A system includes an adsorber having a fluidized bed of a plurality of adsorption materials. The adsorber is configured to receive the gaseous fuel stream including the plurality of pollutants and adsorb the said plurality of pollutants in a single unit from the gaseous fuel stream to generate a clean gas stream substantially free of the pollutants. Different adsorption materials are designed to remove different pollutants over a similar temperature range. The pollutants include at least one of sulfur compounds, chlorine, ammonia, mercury, arsenic, selenium, cadmium, or combinations thereof. | 07-22-2010 |
20100272619 | METHOD AND APPARATUS FOR SUBSTITUTE NATURAL GAS GENERATION - A system comprising a multi-stage reactor. The multi-stage reactor may include a water gas shift (WGS) reactor and a sour methanation reactor configured to generate methane without prior removal of acid gas. Furthermore, the multistage reactor may be a single unit having both the WGS reactor and the methanation reactor. | 10-28-2010 |
20100278702 | SYSTEM AND METHOD FOR REMOVING SULFUR FROM GAS STREAM - A system for removing sulfur from a gaseous stream includes (a) a reaction bed for receiving the gaseous stream and for reacting sulfur dioxide and at least some of the hydrogen sulfide of the gaseous stream into elemental sulfur to provide an elemental sulfur stream and a first product stream; and (b) a circulating fluidized bed comprising (i) a first region for receiving the first product stream and using a sulfur adsorption material to adsorb and remove any remaining hydrogen sulfide from the first product stream to generate saturated sulfur adsorption material and a second product stream substantially free of sulfur; and (ii) a second region for receiving a regeneration stream and for using the regeneration stream to regenerate the saturated sulfur adsorption material and to generate the sulfur dioxide. | 11-04-2010 |
20110072723 | SOLID FUEL TRANSPORTING SYSTEM FOR A GASIFIER - A system for use in a gasification system comprises an increasing pitch screw feeder and a high-pressure vessel disposed about said increasing pitch screw feeder. The high-pressure vessel comprises an inlet for connection to an outlet of a solid pump and a conveyance gas line and an outlet through which solid fuel delivered from the solid pump is transported to a gasifier. The outlet is downstream of the solid pump and the conveyance gas line. | 03-31-2011 |
20110076116 | SOLID FUEL CONVEYANCE AND INJECTION SYSTEM FOR A GASIFIER - A system for use in a gasification system, comprises a solid pump that delivers a pressurized fuel and a high-pressure transition vessel. The transition vessel comprises a first inlet connected to an outlet of the solid pump so that all of the fuel from the solid pump passes through the transition vessel, a second inlet for connection to a conveyance gas line, and an outlet through which the fuel is transported to a gasifier. The transition vessel is elongated in the direction of a flow so that a conveyance gas introduced through said conveyance gas line plus the pressure difference carries the fuel to the gasifier. | 03-31-2011 |
20120117874 | SYSTSEMS AND METHODS FOR PROCESSING SOLID POWDERS - A system for gasification of a solid powder is provided. The system comprises one or more conveying tanks configured to receive a solid powder and one or more solid pumps disposed downstream of and in fluid communication with the one or more respective conveying tanks. The system further comprises a gasifier disposed downstream of and in fluid communication with the one or more solid pumps. A conveyance unit and a method for conveyance and gasification of a solid powder are also presented. | 05-17-2012 |