CHEMICAL SEQUESTERING OF CO2, NOx and SO2
OwnerRobert George Richardsoninventor
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Abstract
The disclosure provides seven integrated methods for the chemical sequestration of carbon dioxide (CO2), nitric oxide (NO), nitrogen dioxide (NO2) (collectively NO2, where x=1, 2) and sulfur dioxide (SO2) using closed loop technology. The methods recycle process reagents and mass balance consumable reagents that can be made using electrochemical separation of sodium chloride (NaCl) or potassium chloride (KCl). The technology applies to marine and terrestrial exhaust gas sources for CO2, NOx and SO2. The integrated technology combines compatible and green processes that capture and/or convert CO2, NOx and SO2 into compounds that enhance the environment, many with commercial value.
Claims3
A system for chemically sequestering sulfur dioxide (SO2), nitrogen oxide (NO), nitrogen dioxide (NO2) and carbon dioxide (CO2), comprising:
- a) one or more first reaction chambers for quenching/absorbing SO2, NO, NO2 and CO2 with water (H2O), hypochlorous acid (HOCl) solution or sodium hydroxide (NaOH) solution;
- b) an electrochemical generator for reacting sodium chloride (NaCl) or potassium chloride (KCl) and H2O to generate NaOH or KOH, hydrogen (H2) and chlorine (Cl2), wherein NaOH or KOH reacts with Cl2 to generate sodium hypochlorite (NaOCl) or potassium hypochlorite (KOCl) and H2O;
- c) one or more second reaction chambers for chemically sequestering SO2, NO, NO2 and CO2 by a loop sequence, wherein the generated NaOH or KOH, and NaOCl or KOCl are optionally fed into the one or more second reaction chambers;
- and
- d) one or more third reaction chambers for chemically sequestering carbon dioxide (CO2) by another loop sequence, wherein the generated NaOH or KOH is optionally fed into the one or more third reaction chambers.
- e) an aerosol conveying dry or moist LiOH granules or nano-granules that contact gas phase CO2 or CO2 dissolved/suspended in liquid droplets resulting in a reaction. The reaction product and excess reactants are subsequently captured in a mist or liquid that is ultimately recirculated in this process sequence.
- f) devices to promote mass transfer of gas phase CO2, NOx and SO2 into to liquid phase. For example:
- droplets containing a reagent formed with or without mechanical/hydraulic shear, sprayed into a gas.
Dependencies are inferred from the claim text.