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    Tube plate for hot gas coolers
    1.
    发明授权
    Tube plate for hot gas coolers 失效
    用于热气体的管板

    公开(公告)号：US3610329A

    公开(公告)日：1971-10-05

    申请号：US3610329D

    申请日：1969-12-29

    Applicant: BASF AG

    Inventor： MARKERT FERDINAND ,  SCHUNCK MICHAEL

    IPC: C10K1/16 ,  F28D7/12 ,  F28F9/02 ,  F28F9/18

    CPC classification number: F28F9/185 ,  C10K1/16 ,  F28D7/12 ,  F28D2021/0075 ,  F28F9/0229

    Abstract: A tube plate for heat exchangers, particularly for hotgas coolers, wherein the gas inlet is exposed to gas temperatures exceeding 500* C. at high gas velocities, and wherein the gas inlet portions of the tubes conveying the gas that is to be cooled are double-walled and the two walls are annularly interconnected at the inlet end, the annular jacketing chambers thus formed each containing a coaxially inserted baffle tube for guiding the coolant, and the ends of said baffle tubes being fixed in a supplementary tube plate.

    Separation and recovery of components from gas mixtures
    6.
    发明专利
    Separation and recovery of components from gas mixtures 未知

    公开(公告)号：GB1013276A

    公开(公告)日：1965-12-15

    申请号：GB3728062

    申请日：1962-10-02

    Applicant: BASF AG

    Inventor： LORENZ LOTHAR ,  SCHUNCK MICHAEL

    IPC: C07C7/11

    Abstract: In Example 1, acetylene, carbon dioxide and ethylene are recovered separately, from a mixture containing also methane and inert gases by passage through three absorption zones (5, 7, 9) in series, acetone being passed through one of said absorption zones and a corresponding two-stage desorption zone (20-21, 15-16, 10-11, respectively) for each component to be separately recovered, said absorption and desorption zones being traversed by the solvent alternately in series and in a closed circuit and acetone from the zone (5) for the most readily soluble gaseous component after passage through its desorption zone (20-21) being completely stripped and returned to the absorption zone (9) for the most difficultly soluble component. Each desorption zone comprises a countercurrent scrubbing zone (20 &c.) in which part of the component to be separated at that stage is used to strip more difficultly soluble components and a degassing zone (21 &c.) in which the component to be liberated is partially removed by reduction of pressure. The temperature and pressure in the absorption zones is such that the component to be separated therein is just completely absorbed. As shown in the figure, to which the above numerals relate, the gas mixture to be separated is introduced to the apparatus at 1, compressed at 3 and passed via a heat-exchanger with the residual gases to first absorption zone 5, the unabsorbed gas is again heat exchanged with the effluent and passed to second absorber 7 and thence after heat exchange to the third absorber 9. Completely stripped solvent is passed into absorber 9 and thence to desorber 10 in which residual gases are desorbed by means of a part of the most difficultly soluble separated component which is obtained from the desorbed liquid by means of vacuum stripper 11 and the majority of which is removed as product at 13. The solvent, largely free from said component is then passed to absorber 7 and a similar procedure adopted in relation to the next most soluble gas and then again to zone 5 where the most soluble gas is removed as product at 23. Solvent from desorber 20 after vacuum stripping at 21 is passed to zone 25 where it is completely de-gassed by evaporating part of the solvent. The upwardly rising mixture is freed of solvent vapour in the upper part of stripper 25 by means of cold solvent flowing in countercurrent and the gas is combined with that from the stripper 21. The stripped solvent is then cooled by means of heat-exchanger 26 and returned to absorber 9 via further coolers 24, 19 and 14 which serve also to heat the solvent when it is flowing into absorbers 5 and 7 and the stripper 25 and by means of additional heat-exchangers 27, 28 and 29.

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