(19)
(11) EP 0 328 444 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
29.11.1989 Bulletin 1989/48

(43) Date of publication A2:
16.08.1989 Bulletin 1989/33

(21) Application number: 89400327.6

(22) Date of filing: 06.02.1989
(51) International Patent Classification (IPC)4: C02F 1/66, B01F 3/04, B01J 10/00
(84) Designated Contracting States:
AT BE CH DE ES FR GR IT LI LU NL SE

(30) Priority: 11.02.1988 DE 3804179

(71) Applicant: L'AIR LIQUIDE GMBH
D-4000 Dusseldorf 1 (DE)

(72) Inventor:
  • Schmitz, Udo
    D-4010 Hilden (DE)

(74) Representative: Vesin, Jacques et al
L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE 75, quai d'Orsay
75321 Paris Cédex 07
75321 Paris Cédex 07 (FR)


(56) References cited: : 
   
       


    (54) Equipment and process for dissolving gas in liquids


    (57) The invention relates to equipment for dissolving gas in liquids, which equipment consists of an inflow (1), a delivery pump (2), a reaction zone (3), a gas feed line (4) leading into the reaction zone (3), a measuring probe (5) fitted downstream of the reaction zone (3), an outflow (6), a recycle line (7) through which a part of the gas/liquid mixture continuously flows back to a point unpstream of the reaction zone (3), and of a control element which is provided in the outflow (6) downstream of the recycle line (7) and which is opened and closed as a function of the control variable detected by the measuring probe and of a predetermined set value. The invention also relates to a process for dissolving gas in liquids by means of the equipment according to the invention.







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