Wormser Energy Solutions, Inc.

Energy & Environmental Research Center Foundation

Douglas M Todd

John Parkes

Alex Wormser

Michael L Swanson

Teddy Merrill Knowlton

Scott G Tolbert

Surya B Reddy Karri

An ASG system for polygeneration with CC includes a devolatilizer that pyrolyzes solid fuel to produce char and gases. A burner adds exothermic heat by high-pressure sub-stoichiometric combustion, a mixing pot causes turbulent flow of the gases to heat received solid fuel, and a riser micronizes resulting friable char. A devolatilizer cyclone separates the micronized char by weight providing micronized char, steam and gases to a gasifier feed and oversized char to the mixing pot. An indirect fluid bed gasifier combustion loop includes a gasifier coupled to the gasifier feed, a steam input to provide oxygen for gasification and to facilitate sand-char separation, and an output for providing syngas. A burner provides POC to a mixing pot which provides hot sand with POC to a POC cyclone via a riser, where the POC cyclone separates sand and POC by weight and provides POC and sand for steam-carbon reaction.

Char preparation system and gasifier for all-steam gasification with carbon capture

A carbonaceous fuel gasification system for a supercritical COpower cycle system includes a micronized char preparation system comprising a devolatilizer that receives solid carbonaceous fuel, hydrogen, oxygen, and fluidizing steam and produces micronized char, steam, hydrogen, and volatiles. An indirect gasifier includes a vessel comprising a gasification chamber that receives the micronized char, a conveying gas, and steam where the gasification chamber provides syngas, ash, and steam. A combustion chamber receives syngas and an oxidant and burns the mixture of syngas with the oxidant to provide heat for gasification and for heating incoming flows, thereby generating steam and CO. The heat for gasification is transferred from the combustion chamber to the gasification chamber by circulating refractory sand. A syngas cooler cools the syngas and generates steam and provides to a supercritical COpower cycle system that performs a supercritical COpower cycle for generating power.

All-steam gasification for supercritical COcycle system

A carbonaceous fuel gasification system for all-steam gasification with carbon capture includes a micronized char preparation system comprising a devolatilizer that receives solid carbonaceous fuel, hydrogen, oxygen, and fluidizing steam and produces micronized char, steam, volatiles, hydrogen, and volatiles at outlets. An indirect gasifier includes a vessel comprising a gasification chamber that receives the micronized char, a conveying fluid, and steam. The gasification chamber produces syngas, ash, and steam at one or more outlets. A combustion chamber receives a mixture of hydrogen and oxidant and burns the mixture of hydrogen and oxidant to provide heat for gasification and for heating incoming flows, thereby generating steam and nitrogen. The heat for gasification is transferred from the combustion chamber to the gasification chamber by circulating refractory sand. The system of the present teaching produces nitrogen free high hydrogen syngas for applications such as IGCC with CCS, CTL, and Polygeneration plants.

All-steam gasification with carbon capture

A method and apparatus for decarbonizing gases using pressure swing in a first and second pressure vessel that each comprise a fixed bed sorbent. Syngas and steam are received in the first pressure vessel. A carbonation reaction is performed in the first pressure vessel that reacts carbonaceous species in the received syngas with the received steam to produce carbon dioxide and hydrogen. Decarbonated syngas is exhausted from first pressure vessel. A calcination reaction is performed in the second pressure vessel to produce carbon dioxide. A vacuum is provided to the second pressure vessel that causes carbon dioxide to exhaust from the second pressurized vessel at a pressure that substantially follows the decomposition pressure line.

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Galway, NY, United States of America

Douglas M Todd