AERATING LIQUIDS
    33.
    发明专利

    公开(公告)号:CA947639A

    公开(公告)日:1974-05-21

    申请号:CA82192

    申请日:1970-05-07

    Applicant: BASF AG

    Abstract: 1303163 Aerating liquids BADISCHE ANILIN- & SODA-FABRIK AG 7 May 1970 [8 May 1969] 22051/70 Heading B1C Liquid is aerated by means of an ejector which dips into the liquid. The ejector has a central tube 3 through which liquid flows, e.g. from a pump, and induces a flow of air through a surrounding tube 4. The air and liquid pass through a mixing tube 5 completely immersed in the liquid, inducing through the tube 5 the circulation of the liquid in the container. The liquid may be a lake or river, or be in a container 1 as shown. The process may be used to speed up fermentations, or to aerate sewage. The liquid flows through the tube 3 at between 5 and 100 m/sec., the diameter of the mixing tube 5 is 2-20 times the diameter of the tube 3, and the length of the mixing tube 5 is 2-30 times the diameter of the mixing tube.

    Production of fuel gas having high calorific value

    公开(公告)号:GB951518A

    公开(公告)日:1964-03-04

    申请号:GB563462

    申请日:1962-02-14

    Applicant: BASF AG

    Abstract: A process for producing high calorific value fuel gas comprises cracking liquid hydrocarbons with oxygen by the submerged-flame process and passing the product at an elevated temperature over a catalyst containing at least one element or compound of a Group VI or VIII metal. The gaseous product from the submerged flame process may be cooled before and after passing over the catalyst, and at normal or increased pressures, e.g. 8 atmospheres gauge. The temperature of the catalyst may be from 60 DEG to 400 DEG C. The catalyst may be supported on a carrier and may be a fixed or fluidized bed, and is exemplified by oxides and/or sulphides of chromium, molybdenum, tungsten, iron group metals such as nickel or cobalt, or platinum metals such as palladium. Mixtures of the oxides and/or sulphides of Group VI metals with Group VIII metals may also be used. Suitable carriers are aluminium oxide, aluminiferrous clays, alumina cements, pumice, or silica gel, and may be of 2-50 mm. grain size for the fixed bed, and 0.01 to 10 mm. for the fluidized bed. Specification 827,438 is referred to.

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