Non-volatile high-lift ammonia vapor absorbent
    71.
    发明授权
    Non-volatile high-lift ammonia vapor absorbent 失效
    非挥发性高提升氨蒸气吸收剂

    公开(公告)号:US4784783A

    公开(公告)日:1988-11-15

    申请号:US132938

    申请日:1987-12-15

    CPC classification number: F25B15/02 C09K5/047 Y02B30/62 Y02P20/124

    Abstract: An absorbent solution for absorbing and desorbing useful quantities of ammonia vapor is disclosed. The absorbent has much lower vapor pressure than water, and has a wider solubility field and higher crystallization limit than any previously known non-volatile absorbent for ammonia. It is useful in absorption cycle processes and apparatus requiring high lifts from temperatures well below freezing, e.g., in thermally actuated industrial refrigeration systems or cold-climate absorption heat pumps for space heating. The new absorbent is also useful with other ammonia-type vapor, e.g., monomethylamine.

    Abstract translation: 公开了用于吸收和解吸有用量的氨蒸气的吸收剂溶液。 吸收剂具有比水低得多的蒸气压,并且比任何先前已知的用于氨的非挥发性吸收剂具有更宽的溶解度场和更高的结晶极限。 它在吸收循环过程和需要从低于冰点的温度升高的装置中是有用的,例如在热驱动的工业制冷系统或用于空间加热的冷气候吸收式热泵中。 新的吸收剂也可用于其它氨型蒸气,例如单甲胺。

    Companded total condensation reboil cryogenic air separation
    72.
    发明授权
    Companded total condensation reboil cryogenic air separation 失效
    总冷凝再冷凝低温空气分离

    公开(公告)号:US4769055A

    公开(公告)日:1988-09-06

    申请号:US10332

    申请日:1987-02-03

    Abstract: In a cryogenic air distillation process for producing medium-to-high purity oxygen plus optional coproduct argon, a new process sequence results in more efficient distillations at reduced supply pressure and full O.sub.2 recovery. Reforming to FIG. 2, a minor stream of supply air is additionally compressed by compander 204, cooled, and then reboils column 201 by total condensation in reboiler 205. The liquid air is split into two intermediate reflux streams, one for each column 201 and 202, valves 206 and 207, thereby improving the efficiency of both columns. The air condensing in 205 is somewhat hotter than that supplied to 202, due to its higher pressure, which permits a reduction in the main supply pressure.

    Abstract translation: 在用于生产中至高纯度氧气和可选的副产物氩气的低温空气蒸馏方法中,新的方法顺序导致在降低的供应压力和全部氧气回收下更有效的蒸馏。 重塑图 如图2所示,小量的供应空气被压缩机204另外压缩,冷却,然后通过再沸器205中的总冷凝重新沸腾塔201.液体空气被分成两个中间回流流,每个列201和202分别为一个,第206和第202列为阀206 和207,从而提高了两列的效率。 由于其较高的压力,205中的空气冷凝比供应给202的空气稍高,这允许降低主供应压力。

    Cascade heat recovery with coproduct gas production
    74.
    发明授权
    Cascade heat recovery with coproduct gas production 失效
    级联热回收与副产气生产

    公开(公告)号:US4617182A

    公开(公告)日:1986-10-14

    申请号:US769230

    申请日:1985-08-26

    CPC classification number: C01B13/0292 Y02P20/129

    Abstract: A process for the integration of a chemical absorption separation of oxygen and nitrogen from air with a combustion process is set forth wherein excess temperature availability from the combustion process is more effectively utilized to desorb oxygen product from the absorbent and then the sensible heat and absorption reaction heat is further utilized to produce a high temperature process stream. The oxygen may be utilized to enrich the combustion process wherein the high temperature heat for desorption is conducted in a heat exchange preferably performed with a pressure differential of less than 10 atmospheres which provides considerable flexibility in the heat exchange.

    Abstract translation: 阐述了一种从燃烧过程中将氧和氮与空气的化学吸收分离相结合的方法,其中来自燃烧过程的过量温度可用性更有效地用于从吸收剂中解吸氧产物,然后显着的热和吸收反应 进一步利用热量来生产高温工艺流。 氧气可用于富集燃烧过程,其中用于解吸的高温热在优选以小于10个大气压的压力差进行的热交换中进行,这在热交换中提供相当大的灵活性。

    Regenerable manganese oxide hot gas desulfurization process
    76.
    发明授权
    Regenerable manganese oxide hot gas desulfurization process 失效
    可再生氧化锰热气脱硫工艺

    公开(公告)号:US4283374A

    公开(公告)日:1981-08-11

    申请号:US123376

    申请日:1980-02-21

    CPC classification number: B01D53/1493 B01D53/1425 B01D53/1468 C01B17/508

    Abstract: A continuous regenerative process for desulfurizing a hot reducing gas is disclosed. The gas is scrubbed by a sorbent containing MnO and Mn.sub.3 O.sub.4. The spent sorbent is regenerated by reacting the MnS with an excess of Mn.sub.3 O.sub.4, contained in oxidized sorbent. The oxidized sorbent is obtained by reacting part of the regenerated sorbent with air. In the regenerator the gaseous oxygen partial pressure is maintained below 10.sup.-6 atmospheres which allows the SO.sub.2 partial pressure to be maintained above 1 atmosphere without causing sulfation.

    Abstract translation: 公开了一种用于脱硫热还原气体的连续再生方法。 气体被含有MnO和Mn3O4的吸附剂洗涤。 用过的吸附剂通过使MnS与过氧化的吸附剂中所含的过量的Mn 3 O 4反应来再生。 通过使一部分再生吸附剂与空气反应获得氧化吸附剂。 在再生器中,气态氧分压保持在10-6大气压以下,这使得SO 2分压保持在1气压以上而不引起硫酸化。

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