Process for the transformation of halogenated refrigerant gases
AssigneeTransformation Technologies, Ltd.
InventorP. G. Johansing, Jr.
Life of this patent
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Abstract
The high temperature combustion of hydrogen and oxygen is used to transform halogenated refrigerant gases (HRGs) and halons to produce calcium fluoride salts. Calcium carbonate is also produced by a series of chemical processes. Calcium chloride is partially consumed by the process by reaction with fluoride released during the high temperature combustion of the HRGs. Calcium chloride is also produced in the process during scrubbing of chlorine and during the recovery of ammonia used to remove carbon dioxide. The calcium chloride produced during the process can be used in the combustion reaction to further produce calcium fluoride.
Claims21
A method of forming calcium halide salts from halocarbon gases comprising:
- introducing a mixture of oxygen, a combustible fuel gas, steam and a halocarbon gas into a reactor;
- simultaneously injecting a calcium reagent into the reactor with the mixture;
- and then
- igniting the mixture, along with the injected calcium reagent, within the reactor to decompose the halocarbon gas so that halogen constituents of the halocarbon gas are released within the reactor to react with the calcium reagent to form calcium halide salts.
A method of forming calcium fluoride salts from halocarbon gases containing fluorine comprising:
- introducing a mixture of oxygen, hydrogen, steam and a halocarbon gas containing fluorine into a reactor;
- simultaneously injecting a calcium reagent into the reactor with the mixture;
- and then
- igniting the mixture, along with the injected calcium reagent, within the reactor to form decomposition products with fluorine being released within the reactor to react with the calcium reagent to form calcium fluoride.
A method of transforming halocarbon gases into nongaseous products, the method comprising:
- introducing a mixture of oxygen, a combustible fuel gas, steam and a halocarbon gas into a reactor;
- simultaneously injecting a calcium reagent into the reactor with the mixture;
- then
- igniting the mixture along with the injected calcium reagent within the reactor to form decomposition products, with halogen constituents of the halocarbon gas being released within the reactor to react with the calcium reagent to form calcium halide salts, and wherein carbon constituents of the halocarbon gas react with oxygen to form carbon dioxide gas;
- and
- reacting the released carbon dioxide gas with ammonia and an aqueous solution of calcium chloride so that the released carbon dioxide gas reacts with the ammonia and calcium chloride to form calcium carbonate.
Dependencies are inferred from the claim text.