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    • 1. 发明申请
    • METHOD AND APPARATUS FOR SEPARATING GAS
    • 用于分离气体的方法和装置
    • WO1995024958A1
    • 1995-09-21
    • PCT/JP1995000415
    • 1995-03-13
    • SUMITOMO SEIKA CHEMICALS CO., LTD.HARUNA, KazuoMIYAKE, MasanoriKAJI, ShinichiSASANO, Hiroaki
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • B01D53/04
    • B01D53/047B01D53/261B01D2253/108B01D2256/12B01D2257/80B01D2259/40001
    • A method of separating a gas according to the PSA method by removing an easily adsorbable gas by adsorption from a raw material gas consisting of the easily adsorbable gas and a difficultly adsorbable gas in an adsorbent bed and separating the difficultly adsorbable gas as a product, wherein use is made of a gas separator equipped with a dehumidifier bed on the raw material gas supply side of the adsorbent bed and with a heater between the adsorbent bed and the dehumidifier bed or inside the dehumidifier bed, and which comprises heating the raw material gas passing through the dehumidifier bed and flowing into the adsorbent bed at the time of adsorption so as to heat a low-temperature portion occuring at the raw material gas inflow portion of the adsorbent bed, and heating the adsorption gas passing through the adsorbent bed and flowing into the dehumidifier bed at the time of desorption. The invention method can improve the gas separation performance, can save heat energy, and can improve the moisture removing capacity and the regeneration effect of the dehumidifier. Accordingly, the packing quantity of the dehumidifier can be reduced to below 70 % of the quantity required conventionally.
    • 一种根据PSA法分离气体的方法,通过从吸附床中的易吸附气体和难吸附气体组成的原料气体吸附除去容易吸附的气体,并分离作为产物的难吸附气体, 使用在吸附剂床的原料气体供给侧上配备有除湿床的气体分离器,在吸附剂床和除湿床之间或者除湿床之间具有加热器,其包括加热通过的原料气体 通过除湿器床并在吸附时流入吸附床,以便加热吸附床原料气体流入部分所产生的低温部分,并加热通过吸附床的吸附气体并流入 解吸时的除湿床。 本发明方法可以提高气体分离性能,可以节约热能,并可以提高除湿能力和除湿机的再生效果。 因此,除湿器的包装量可以降低到通常所需量的70%以下。
    • 4. 发明申请
    • METHOD AND APPARATUS FOR CONCENTRATING METHANE IN ANAEROBIC DIGESTIVE FERMENTATION GAS
    • 在厌氧发酵气体中浓缩甲烷的方法和装置
    • WO1997016399A1
    • 1997-05-09
    • PCT/JP1996003050
    • 1996-10-18
    • SUMITOMO SEIKA CHEMICALS CO., LTD.INOUE, MasahiroHARUNA, Kazuo
    • SUMITOMO SEIKA CHEMICALS CO., LTD.
    • C07C09/04
    • C10L3/10B01D53/226C07C7/144Y02E50/343C07C9/04
    • A methane concentration method for removing carbonic acid gas from an anaerobic digestive fermentation gas and concentrating and recovering methane by using an apparatus (10) including a pre-stage module (11) with a membrane (11a) and a post-stage module (12) with a membrane (12a) connected in series. According to this method, an anaerobic digestive fermentation gas is supplied under pressure to the pre-stage module (11) through a compressor (14). The gas passing through the pre-stage module (11) is discharged by a vacuum pump (16), while the gas remaining in the pre-stage module is supplied by a residual pressure to the post-stage module (12). The gas passing through the post-stage module is returned to the pre-stage module (11) through a recycling pipe (18), and the gas remaining in the post-stage module (12) is recovered as concentrated methane gas having a concentration of at least 90 % at a methane yield of at least 85 %.
    • 一种用于从厌氧消化发酵气体除去碳酸气体并通过使用包括具有膜(11a)和后级模块(12)的前级模块(11)的装置(10)浓缩和回收甲烷的甲烷浓缩方法 )与膜(12a)串联连接。 根据该方法,通过压缩机(14)将厌氧消化发酵气体在压力下供给到前级模块(11)。 通过前级模块(11)的气体通过真空泵(16)排出,而残留在前级模块中的气体通过剩余压力供给到后级模块(12)。 通过后级模块的气体通过再循环管道(18)返回到前级模块(11),残留在后级模块(12)中的气体作为浓度为浓度的甲烷气体回收 至少90%,甲烷产率至少为85%。