Activated carbon adsorbent and applications thereof

Details Activated carbon adsorbent and applications thereof Activated carbon adsorbent and applications thereof

B - Operations, Transporting

01

J

B01J 20/20 (2006.01) B01D 53/04 (2006.01) E03D 9/052 (2006.01)

Patent

CA 2090271

ABSTRACT An alkali metal iodide and phosphoric acid are homogeneously supported on activated carbon, for example an activated carbon honeycomb, in respective amounts of 0.015 to 1.5 mg atoms as iodine and 1.4 to 7.0 mg equiv- alents per gram of activated carbon. The alkali metal iodide is, for example, potassium iodide. When both the chemicals are supported on activated carbon in amounts respectively within the above ranges, homogeneous sup- porting of phosphoric acid with the alkali metal iodide becomes possible without causing any decrease in adsorp- tion and elimination capacities. A number of malodorous and harmful components such as nitrogen-containing compounds and sulfur-containing compounds can be effi- ciently removed with one kind of activated carbon over a long period of time. The activated carbon adsorbent thus obtained can be used for various deodorization purposes and in exhaust gas treatment, and is particu- larly suited for use in toilet deodorization and in gas treatment in closed spaces, for example in refrigera- tors.

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