METHOD FOR HYDROLYSIS OF ORGANIC MATERIALS
    177.
    发明授权
    METHOD FOR HYDROLYSIS OF ORGANIC MATERIALS 失效
    方法进行水解有机材料的

    公开(公告)号:EP0784504B1

    公开(公告)日:2000-07-05

    申请号:EP95933651.2

    申请日:1995-09-13

    Applicant: CAMBI AS

    CPC classification number: B01J3/00 C02F1/025

    Abstract: A method and apparatus for the hydrolysis of organic materials are described, which method comprises the following steps: a) a mixture of preheated organic material and optionally water is fed into a reaction vessel (2), whereupon the mixture of the organic material is heated further in that steam is supplied from a subsequent reaction vessel (3) having a higher pressure in that a valve (8) between the reaction vessels (2, 3) is opened; b) the valve (8) is closed when the pressure in the reaction vessel (3) reaches a predetermined value or the pressure difference between the reaction vessels (2, 3) is approximately equal to zero; c) the pressure in the reactor vessel (3) is reduced further by means of a valve (9); d) the mixture of organic material in the reaction vessel (2) is transferred to the reaction vessel (3) by means of the pressure difference between the reaction vessels (2, 3), or with the aid of a pump; e) the reaction vessel (3) is re-pressurised by adding steam; f) steps a)-e) are repeated. The pressure in the reaction vessel (3) prior to the pressure release is preferably in the range of 10-25 bars. The pressure in the reaction vessel (2) is preferably in the range of 2-4 bars after the realease of the pressure from the reaction vessel (3). An apparatus is also described for the hydrolysis of organic materials, which comprises at least two reaction vessels (2, 3) each having an inlet and an outlet, said reaction vessels (2, 3) being connected to a pipe having a valve (10) for the transfer of organic material from the reaction vessel (2) to the reaction vessel (3), said reaction vessels (2, 3) being connected to a pipe having a valve (8) for the flash-off of steam from the reaction vessel (3) to the reaction vessel (2).

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