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US 9,428,702 B2Granted
Agglomerator with ceramic matrix composite obstacles
AssigneeGas Technology Institute
InventorsKenneth M. Sprouse, David R. Matthews
Life of this patent
Estimating the term…
Abstract
A slag agglomerator includes an inlet, an outlet and a plurality of obstacles. The inlet receives a flow of gas and slag droplets and the outlet allows the flow of gas and slag droplets to exit the agglomerator. The obstacles are oblique or perpendicular to the flow of gas and slag droplets and have an exterior surface containing a ceramic matrix composite.
Claims21
A gasification system comprising:
- a downflow gasifier;
- a slag agglomerator having a gas flow path and a plurality of obstacles, wherein each obstacle has an exterior surface containing a ceramic matrix composite, wherein each obstacle has a coolant tube disposed within the obstacle, and wherein the obstacles are positioned within the agglomerator oblique to the gas flow path and in multiple offset rows so that the gas flow path is tortuous and substantially all slag droplets flowing through the slag agglomerator impinge upon at least one obstacle before exiting the slag agglomerator;
- a cyclone for removing slag from a gas stream that has passed through the slag agglomerator.
A gasification system comprising:
- a gasifier;
- a slag agglomerator separate and spaced apart from the gasifier, the slag agglomerator having;
- an inlet for receiving a flow of gas and slag droplets;
- an outlet for allowing the flow of gas and slag droplets to exit the agglomerator;
- a plurality of obstacles having an internal coolant flow, the plurality of obstacles positioned within the slag agglomerator oblique to the flow of gas and slag droplets and in multiple offset rows so that the gas flow path is tortuous, wherein the obstacles have an exterior surface containing a ceramic matrix composite, wherein the obstacles are positioned within the agglomerator so that substantially all slag droplets impinge upon at least one obstacle before reaching the outlet;
- and
- a cyclone for removing slag from a gas stream that has passed through the slag agglomerator.
4 more elements
A gasification system comprising:
- a gasifier to convert carbonaceous material to produce a gas stream containing fly ash;
- a slag agglomerator spaced apart from the gasifier, the slag agglomerator to process the gas stream wherein slag droplets formed by the fly ash are agglomerated, the slag agglomerator having:
- a gas flow path;
- an inlet for receiving a flow of the gas stream;
- an outlet for allowing a flow of gas and slag droplets to exit the agglomerator;
- and
- a plurality of obstacles having an internal coolant flow, the plurality of obstacles positioned within the slag agglomerator oblique to the gas flow path and in multiple offset rows so that the gas flow path is tortuous, wherein the obstacles have an exterior surface containing a ceramic matrix composite, wherein the obstacles are positioned within the agglomerator so that substantially all slag droplets impinge upon at least one obstacle before reaching the outlet;
- and
- a cyclone for removing slag from the gas stream that has passed through the slag agglomerator,
- wherein a conduit extending between the gasifier and the slag agglomerator inlet conveys the gas stream containing fly ash from the gasifier to the agglomerator.
7 more elements
Dependencies are inferred from the claim text.