(19)
(11) EP 0 305 503 A1

(12)

(43) Date of publication:
08.03.1989 Bulletin 1989/10

(21) Application number: 88903538.0

(22) Date of filing: 11.03.1988
(51) International Patent Classification (IPC): 
B01D 53/ 56( . )
(86) International application number:
PCT/US1988/000780
(87) International publication number:
WO 1988/007497 (06.10.1988 Gazette 1988/22)
(84) Designated Contracting States:
AT BE CH DE FR GB IT LI LU NL SE

(30) Priority: 13.03.1987 US 19870025493

(71) Applicant: FUEL TECH, INC.
Stamford, CT 06906 (US)

(72) Inventors:
  • EPPERLY, William, Robert
    New Canaan, CT 06840 (US)
  • SULLIVAN, James, Christopher
    Westport, CT 06880 (US)

(74) Representative: Votier, Sidney David 
CARPMAELS & RANSFORD 43, Bloomsbury Square
London WC1A 2RA
London WC1A 2RA (GB)

   


(54) PROCESS FOR THE REDUCTION OF NITROGEN OXIDES IN AN EFFLUENT USING A HETEROCYCLIC HYDROCARBON