Patent ID: 11964234
Assignee: EXP SERVICES INC.
Field: Chemical engineering (Chemistry)
Classification: CPC B  A  C | IPC A  B  C

Claim 13:
14. The method of claim 11, wherein said gas is contacted with said acidic aqueous oxidizing composition having a pH of about 2.0 to about 3.0 and comprising at least one cation of a metal chosen from Fe, Cu, Ni, Mn, Ti, Cr, Ce, Zn, Pd, Mo, and mixtures thereof; sequestering agent chosen from oxalic acid, citric acid, glycine, NTA, salicylic acid, sulfosalicylic acid, trithylenetetramine,-and mixtures thereof; and H2O2 wherein said contacting includes mixing said gas with said acidic oxidizing composition so as to at least partially dissolve at least one compound contained in said gas into said acidic oxidizing composition, said gas and said acidic oxidizing composition being mixed together in a packed column, and wherein said gas is introduced at a bottom portion of said column and said acidic aqueous composition is introduced at a top portion of said column, said gas and said acidic aqueous composition being mixed together into said column over a predetermined amount of transfer units; and
submitting said gas and said composition to UV radiation when said gas and said composition are contacting each other.