(19)
(11) EP 0 198 700 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
03.06.1987 Bulletin 1987/23

(43) Date of publication A2:
22.10.1986 Bulletin 1986/43

(21) Application number: 86302759

(22) Date of filing: 14.04.1986
(84) Designated Contracting States:
BE DE FR GB

(30) Priority: 16.04.1985 US 723767

(71) Applicant: THE DOW CHEMICAL COMPANY
 ()

(72) Inventors:
  • Pearson, Stanley R.
     ()
  • Lipp, Charles W.
     ()
  • Merrick, Douglas D.
     ()
  • White, William P.
     ()

   


(54) Annular nozzle and process for its use


(57) A synthetic or fuel gas mixture containing hydrogen and carbon monoxide is made by the partial oxidation in a free-flowing hollow reactor of a slurry of solid carbonaceous fuel in a liquid carrier admixed with a gas containing free oxygen using a nozzle in which an annular slurry stream is enveloped between central and annular streams of high velocity gas. A uniform atomized admixture of solids, liquids and gases is formed by impinging the annular slurry stream on a downstream nozzle diffuser, and then transported through an exit orifice at an accelerated velocity to further atomize the admixture. The nozzle preferably has a slurry passageway (32) formed of two elongate segments (32a, 32b), the upstream segment (32a) being of greater cross-sectional area than the downstream segment (32b). The nozzle also is of general use in mixing a slurry with a gas.






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