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AssigneeFrontline BioEnergy, LLC
InventorsJohn P. Reardon, Thomas J. Paskach, Paul Evans
Estimating the term…
An apparatus and method is presented for removing acid gases and other trace contaminants to very low levels in combustible gases generated from thermal gasification of biomass or refuse-derived fuels. The invention includes optimization of geometric variables, temperature and pressure set points via use of a pressurized bubbling fluidized bed reactor to convert granular raw (non-activated) sorbents and auto-generated biochar sorbents) into activated, highly dispersed, and ideally sized particles for removing acid gases and toxic metals. The system can incorporate a generated gas cooler, a gas-sorbent contact chamber or zone, and a novel filter (with or without additional gas cooling and residence time stages).
A gas conditioning system for controlling trace contaminants in biomass and waste generated gases, said system comprising a pressurized bubbling fluid bed reactor comprising at least one non-activated granular solid sorbent material wherein the non-activated granular solid sorbents are converted into activated sorbents some entrained with gases, said reactor in fluid connection with a gas sorbent contact chamber facilitating requisite residence time contact of said gas and said activated sorbents, said gas sorbent contact chamber further in fluid connection with a filter vessel, said filter vessel comprising a first exit conduit from which a filtered gas stream exits and a second exit conduit from which a portion of a spent sorbent stream exits said system with ash.
A gas conditioning system for controlling trace contaminants in biomass and waste generated gases comprising a pressurized bubbling fluid bed reactor, comprising at least one non-activated granular solid sorbent material, for conversion of the non-activated granular solid sorbents into activated sorbents and generation of a gas stream, a primary heat exchanger, a sorbent residence time chamber, and a filter vessel comprising a first exit conduit through which filtered gas exits and a second exit conduit through which spent sorbent and ash exits said system.
Dependencies are inferred from the claim text.