Biogas halogen processing systems and methods
AssigneeStearns, Conrad and Schmidt, Consulting Engineers, Inc.
InventorJeffrey Grill
Life of this patent
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Abstract
A method to produce a halogen-depleted gas is described. The method providing a gas derived from and/or including a source of biogas, mixing said gas with a source of hydrogen to produce a processed gas mixture including an acid, and separating said acid from said processed gas mixture. Sulfur, oxygen, carbon dioxide removal processes are integrated into the method. Production of secondary products, and removal thereof, are included. Pre and post processing may be integrated, and production of products is described.
Claims29
A method to produce a halogen-depleted gas, comprising:
- (a) providing a gas derived from and/or including a source of biogas, said gas comprises at least a halogen;
- (b) mixing said gas with a source of hydrogen to produce a gas mixture;
- (c) subjecting said gas mixture to a reaction in the presence of a catalyst and/or heat to produce a processed gas mixture including an acid, wherein at least a portion of said halogen reacts with said hydrogen within said gas mixture to produce said acid;
- and
- (d) separating said acid from said processed gas mixture to produce said halogen-depleted gas, wherein said halogen-depleted gas comprises a reduced amount of said halogen relative to said gas.
A method to produce a processed gas, comprising:
- (a) providing a gas derived from and/or including a source of biogas, said gas comprises at least a halogen;
- (b) mixing said gas with a source of hydrogen to produce a gas mixture;
- (c) subjecting said gas mixture to a reaction in the presence of a catalyst and/or heat to produce a processed gas mixture including an acid, wherein at least a portion of said halogen reacts with said hydrogen within said gas mixture to produce said acid;
- (d) separating said acid from said processed gas mixture to produce said halogen-depleted gas, wherein said halogen-depleted gas comprises a reduced amount of said halogen relative to said gas;
- and
- (e) subjecting at least a portion of said halogen-depleted gas to a processing step to produce said processed gas, said processing step includes one or more processes selected from the group consisting of a nitrogen removal process, a cryogenic gas separation process, and a cryogenic distillation process.
Dependencies are inferred from the claim text.