(19)
(11) EP 0 290 087 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
08.02.1989 Bulletin 1989/06

(43) Date of publication A2:
09.11.1988 Bulletin 1988/45

(21) Application number: 88200829.5

(22) Date of filing: 27.04.1988
(51) International Patent Classification (IPC)4: C10J 3/46, C10J 3/52
(84) Designated Contracting States:
DE GB IT NL

(30) Priority: 05.05.1987 DE 3714915

(71) Applicant: SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ B.V.
NL-2596 HR Den Haag (NL)

(72) Inventor:
  • Eckstein, Günter Klaus
    Hamburg (DE)

(74) Representative: Aalbers, Onno et al
P.O. Box 162
2501 AN Den Haag
2501 AN Den Haag (NL)


(56) References cited: : 
   
       


    (54) Process and apparatus for the preparation of synthesis gas


    (57) A process for the preparation of synthesis gas by partial combustion of finely divided solid carbon-containing fuel with an oxygen-containing gas in a reactor. The liquid slag formed during the partial combustion process falls into a water bath or slag quench vessel where it solidifies and from there falls by gravity into a lockhopper from which the solidified slag is batchwise sluiced out of the gasification system. A gas bubble or gascap is created and maintained in the lockhopper, the pressure of the gas bubble being lower than the pressure in the slag quench vessel. Thus an initial downwards flow of water and slag is created during opening of the valves between the lockhopper and the slag quench vessel.







    Search report