General Electric Company

Other

Boris Nikolaevich Eiteneer

Vitali Victor Lissianski

Vladimir Zamansky

Wei Wei

Ravichandra Srinivasa Jupudi

Ramanathan Subramanian

Nikolai N Eiteneer

Ke Liu

Robert Warren Taylor

Parag Prakash Kulkarni

William Randall Seeker

Roy Payne

James Easel Roberts

Glenn Charles England

Shawn Barge

Ravi Vipperia Kumar

Brian Clifton Jacobs

A coal gasifier is retrofitted to achieve multiple advantages such as reduced oxygen consumption, reduced CO2 and NOx emissions, better H:C ratio, better carbon conversion etc. This is achieved by dividing the coal into at least two zones and modifying the gasifier and operating it as described. The coal is injected into a first zone, configured to devolatilize a substantial portion of the injected coal to produce coal char and volatiles. The operation is tuned to substantially consume the oxidant injected in the first zone. A low-calorific-value, high oxidant feedstock is injected in second zone of the gasifier. The devolatilization of the low-calorific-value, high oxidant content feedstock provides the oxygen containing compounds which gasify at least a portion of the coal char generated in the first zone.

Method of reducing oxygen requirement of a coal gasifier

Method of retrofitting a coal gasifier

A method of operating a gasifier is provided that envisions dividing the gasifier into multiple zones. A high-calorific-value feedstock with an oxidant is injected in the first zone. The gasifier is operated to substantially consume the oxidant within the first gasification zone. The method of operating the gasifier further includes injecting a low-calorific-value, high-oxygen-content feedstock in a second gasification zone. The low-calorific-value, high-oxygen-content feedstock is devolatilized and gasified in second zone. A method of operation provides for a synergistic co-gasification of the high-calorific-value feedstock and the low-calorific-value, high oxidant content feedstock. The method provides for specific control actions that enable operation of multi-fuel, multizone gasifier.

Method of operating a gasifier

A fuel flexible furnace, including a main combustion zone, a reburn zone downstream from the main combustion zone, and a delivery system operably coupled to supplies of biomass and coal and configured to deliver the biomass and the coal as ingredients of first and reburn fuels to the main combustion zone and the reburn zone, with each fuel including flexible quantities of the biomass and/or the coal. The flexible quantities are variable with the furnace in an operating condition.

Method and apparatus for operating a fuel flexible furnace to reduce pollutants in emissions

A method of reducing particulate matter and mercury emissions in a combustion flue gas includes, in an exemplary embodiment, combusting a fuel resulting in generation a flue gas flow, cooling the flue gas flow within a duct, positioning a flow conditioning apparatus within the duct, enhancing a reaction rate of the mercury and carbon-containing fly ash particles by directing the flue gas flow through the flow conditioning apparatus to mix the carbon-containing fly ash particles and mercury within the flue gas flow and to facilitate at least one of oxidation of the mercury and binding the mercury to the carbon-containing fly ash particles, collecting a portion of the carbon-containing fly ash particles in the flow conditioning apparatus, and directing the flue gas flow to a particulate collection device to remove the remaining portion of the fly ash particles from flue gas flow.

Method and apparatus for removing mercury and particulates from combustion exhaust gas

A system for production of hydrogen comprises at least one steam reforming zone configured to receive a first fuel and steam to produce a first reformate gas stream comprising hydrogen using a steam reforming process. The system further comprises a mixed reforming zone configured to receive an oxidant to produce a second reformate gas stream comprising hydrogen, wherein the first reformate gas stream is sent to the mixed reforming zone to complete the reforming process.

System and method for hydrogen production

A heated sampling hose assembly includes a sampling hose having an inlet and an outlet for passage of a sample gas. An outer sleeve surrounds the sampling hose with an annular purge gas passage radially therebetween. The outer sleeve is closed at opposite ends by first and second fittings having a purge gas inlet and purge gas outlet, respectively, and a heater is arranged to heat the purge gas in the annular purge gas passage to a temperature of the sample gas.

Heated sampling hose assembly and related method

A motion sensitive animated advertising device for mounting to a moving vehicle. The present invention comprises at least one moving element having two stable positions wherein the movement of the vehicle causes the element to shift from one stable position to the other stable position.

Motion sensitive animated advertising device

The present invention provides for a multi-layered gaming device that can be used for a variety of different purposes including, but not limited to, winning prizes, education and advertising. The gaming device comprises a base panel having multiple overlapping strips removably attached to the base panel. In response to a series of questions, a user selectively removes one or more of the overlapping strips until a final image or answer is revealed.

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Aliso Viejo, CA, United States of America

Boris Nikolaevich Eiteneer