초록 ▼

An NO abatement process wherein an NO-containing fluid is contacted with a polymeric cobalt(II) dioxygen diamine complex. The aqueous solution is recovered, purified by membrane separation to remove low molecular weight reaction products, optionally electrolytically regenerated, and recycled for the

An NO abatement process wherein an NO-containing fluid is contacted with a polymeric cobalt(II) dioxygen diamine complex. The aqueous solution is recovered, purified by membrane separation to remove low molecular weight reaction products, optionally electrolytically regenerated, and recycled for the NO-containing gas contact. The cobalt(II) is complexed with an amine-containing polymer such as polyethyleneimine free of acidic, e.g. carboxylate, chelating groups.

대표청구항 ▼

A method for abating nitric oxide in a fluid stream, comprising the steps of: (A) contacting a fluid stream containing nitric oxide with an aqueous solution of a polymeric cobalt(II) diamine dioxygen complex, wherein said complex is obtained by (a) complexing (i) a cobalt(II) salt with (ii) a water

A method for abating nitric oxide in a fluid stream, comprising the steps of: (A) contacting a fluid stream containing nitric oxide with an aqueous solution of a polymeric cobalt(II) diamine dioxygen complex, wherein said complex is obtained by (a) complexing (i) a cobalt(II) salt with (ii) a water soluble, basic polymer comprising polyethyleneimine containing secondary amine groups, wherein the molar ratio of said amine groups to cobalt(II) is from 3 to 6, and (b) oxygenating the resulting polymeric cobalt(II) diamine complex; (B) recovering aqueous solution resulting from said contact with said fluid stream in step (A); (C) purifying said recovered aqueous solution to remove low molecular weight reaction products; and (D) recycling the purified solution from step (C) for reuse in the aqueous solution of step (A).