Product gas reservoirs for cyclic char burning engines and gasifiers

Patent · Tue Jun 08 04:00:00 EDT 1993

OSTI ID:6206410

Firey, J C

A cyclic char fuel burning power reactor (CFR) is described, comprising: at least one combined means for compressing and expanding gases, each comprising: an internal combustion engine (ICE) mechanism comprising a variable volume chamber (VVC) for compressing and expanding gases, and drive means for driving the ICE mechanism and for varying the volume of the chamber through repeated cycles and each the combined means being connected to a separate primary reaction chamber (PRC), within a pressure vessel container, each the PRC comprising: a refuel end with a mechanism for supplying fresh char fuel (CF) particles into the refuel end, an ash collection end, a CF direction of motion from the refuel end toward the ash removal end, a CF preheat zone positioned toward the refuel end, a rapid reaction zone positioned between the CF preheat zone and the ash collection zone, and at least one means for removing ashes; the CFR further comprising a source of supply of reactant gas containing appreciable oxygen gas to each the intake means for admitting reactant gases into the VVC; means for preheating the CF within the PRC to that temperature at which the CF reacts rapidly with oxygen in adjacent compressed reactant gases when the CFR is being started; means for cranking the ICE mechanism when the CFR is being started; an improvement comprising adding to each the PRC a reactant gas manifold comprising an inlet and an outlet; a producer gas reservoir (pgr) wherein all of the reactant gas inlet ports and also all of the outlet ports are smaller in at least one area cross section dimension than the CF particles to be refueled into the PRC; means for gas flow connecting the VVC of the ICE mechanism to the PRC so that during all compression time intervals gas flows from the VVC into the PRC via the reactant gas manifold inlet and gas flows from the PRC into the pgr; and further so that during all expansion time intervals gas flows from the pgr and the PRC into the VVC.

• Assignee: IMS; EDB-93-098833
• Patent Number(s): A; US 5216982
• Application Number: PPN: US 7-876303
• OSTI ID: 6206410
• Country of Publication: United States
• Language: English

Related Subjects

42 ENGINEERING
421000* -- Engineering-- Combustion Systems
ASHES
CHARS
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION CHAMBERS
COMBUSTION PRODUCTS
COMBUSTORS
COMPRESSION
DESIGN
ENGINES
ENRICHMENT
EXPANSION
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GAS GENERATORS
GASES
GASIFICATION
HEAT ENGINES
INTERNAL COMBUSTION ENGINES
MATERIALS HANDLING
OPERATION
OXIDATION
OXYGEN ENRICHMENT
PYROLYSIS PRODUCTS
RESIDUES
SEPARATION PROCESSES
STORAGE
THERMOCHEMICAL PROCESSES