Back to results
US 10,472,721 B1Granted
Biowaste treatment and recovery system
AssigneeChemergy Ltd.
InventorsMelahn L. Parker, Robin Z. Parker
Life of this patent
Estimating the term…
Abstract
A system and method for conversion of biowaste into usable energy components comprises anaerobic digestion of carbonaceous feedstocks, production of an aqueous solution of hydrogen bromide and carbon dioxide, and recovery of hydrogen via electrolysis of the aqueous hydrobromic acid formed in the process. In one embodiment, a hydrogen enriched biogas generator is employed to produce electricity and heat.
Claims10
A biowaste treatment and recovery system comprising:
- a mixer to produce of a homogeneous influent stream from a feedstock and a hydrobromic acid solution,
- a reactor for reaction of said homogenous influent stream with an amount of bromine,
- said reactor produces a first effluent stream,
- said reactor produces a second effluent stream,
- a heat exchanger to recover a first amount of heat from said second effluent stream,
- a first absorber to separate said first effluent stream,
- said first absorber discharges a first amount of hydrobromic acid solution,
- an electrolyzer to electrolytically disassociate hydrobromic acid into a solution of hydrogen bromide and bromine, and a solution of hydrogen bromide and hydrogen,
- a second absorber to separate hydrogen gas and water from said solution of hydrogen bromide and hydrogen, and
- said second absorber discharges a second amount of hydrobromic acid solution.
7 more elements
A biowaste treatment and recovery system comprising:
- a mixer to production of a homogeneous influent stream from a feedstock and a hydrobromic acid solution,
- a reactor for reaction of said homogenous influent stream with an amount of bromine,
- said reactor produces a first effluent stream,
- said reactor produces a second effluent stream,
- a heat exchanger to recover a first amount of heat from said second effluent stream,
- said heat exchanger transfers a second amount of heat to a solution of hydrogen bromide and bromine,
- a first absorber to separate said first effluent stream,
- said first absorber discharges a first amount of hydrobromic acid solution,
- an electrolyzer to electrolytically disassociate hydrobromic acid into a solution of hydrogen bromide and bromine, and a solution of hydrogen bromide and hydrogen,
- said electrolyzer comprises a plurality of proton exchange membrane cells, wherein said plurality of proton exchange membrane cells are disposed in a series configuration in an electrolyzer stack,
- a second absorber to separate hydrogen gas and water from said solution of hydrogen bromide and hydrogen,
- said second absorber comprises a packed column, wherein said packed column includes an amount of a solid absorbent material,
- a cooler to reduce a temperature of said hydrogen gas and water separated in said second absorber,
- a dryer to remove said water from said hydrogen gas and water separated in said second absorber, and
- said second absorber discharges a second amount of hydrobromic acid solution.
12 more elements
A biowaste treatment and recovery system comprising:
- a mixer to produce of a homogeneous influent stream from a feedstock and a hydrobromic acid solution,
- a reactor for reaction of said homogenous influent stream with an amount of bromine,
- said reactor produces a first effluent stream,
- said reactor produces a second effluent stream,
- a first absorber separates said first effluent stream,
- said first absorber discharges a first amount of hydrobromic acid solution,
- an electrolyzer to electrolytically disassociate hydrobromic acid into a solution of hydrogen bromide and bromine, and a solution of hydrogen bromide and hydrogen,
- a second absorber to separate hydrogen gas and water from said solution of hydrogen bromide and hydrogen,
- said second absorber discharges a second amount of hydrobromic acid solution, and
- a cooler to reduce a temperature of said hydrogen gas and water from said second absorber.
7 more elements
Dependencies are inferred from the claim text.