公开(公告)号：DE2329252A1

公开(公告)日：1974-01-24

申请号：DE2329252

申请日：1973-06-08

Applicant: STANDARD OIL CO OHIO

Inventor： ADAMS HARRY ARCHIBALD ,  KUNCHAL SUBODH KUMAR ,  CALLAHAN JAMES LOUIS

IPC: B01D53/34 ,  B01D53/58 ,  B01D53/62 ,  B01D53/86 ,  B01J23/02 ,  B01J23/06 ,  B01J23/14 ,  B01J23/18 ,  B01J23/24 ,  B01J23/34 ,  B01J23/38 ,  B01J23/70 ,  B01J23/72 ,  C01C1/12 ,  B01D53/14

Abstract: 1409599 Purifying NH 3 plant effluent STANDARD OIL CO 19 June 1973 [22 June 1972] 28937/73 Heading C1A A gas stream containing at least 90% by vol. steam and 0À1-10% by vol. of NH 3 and/or organic compounds with up to 6 carbon atoms is contacted with a catalyst containing the oxides of Cu, Fe, Mn, Bi, Ni, Co, U, Mo, V, Cr, W, Pd, Pt, Ag, Zn, alkali metal, alkaline earth metal, Sn and/or Sb at a temperature of 200-800‹ C. to oxidize the NH 3 or organic compound, wherein the said gas stream is obtained as a result of (a) stripping a hot K 2 CO 3 solution to form a gas stream containing H 2 O, CO 2 , together with NH 3 and/or the organic compounds, (b) condensing or washing the gas stream with H 2 O to form an aqueous stream containing NH 3 and/or the organic compounds and (c) steam stripping the aqueous stream to obtain the said gas stream containing NH 3 and/or the organic compounds. O 2 in the form of air is preferably added to the gas stream prior to catalysis. The K 2 CO 3 solution containing the CO 2 together with NH 3 and the organic compounds may be that formed on scrubbing a gas stream formed on catalytic oxidation of CH 4 with steam and air to form H 2 and CO 2 , in which case the organic compounds are CH 3 OH, HCOOH and HCHO.