Process for removal of undesirable gaseous components from hot flue gases
    2.
    发明授权
    Process for removal of undesirable gaseous components from hot flue gases 失效
    从热烟道气中去除不需要的气体组分的方法

    公开(公告)号:US4659553A

    公开(公告)日:1987-04-21

    申请号:US685082

    申请日:1984-12-21

    申请人: Gerhard Linde

    发明人: Gerhard Linde

    摘要: The invention refers to a process for the removal of undesirable gaseous components from hot flue gases incurred in the combustion of carbonaceous fuels. The flue gas is passed through regenerators for cooling and preliminary cleaning, and subsequently is scrubbed with a physically active solvent for SO.sub.2 absorption. After absorbing SO.sub.2, the solvent is subjected to regeneration and returned to the scrubbing process. For purposes of energy savings, it is suggested to heat exchange the hot flue gas in the regenerators with atmospheric air to cool it to temperatures between 0.degree. and 60.degree. C., and to scrub at this temperature with a solvent consisting predominantly of tetraethyleneglycol dimethylether. The process of the invention permits utilization of the exhaust heat of the flue gas to be purified.

    摘要翻译: 本发明涉及从碳质燃料燃烧中产生的热烟道气中除去不需要的气体成分的方法。 烟气通过再生器进行冷却和预清洗,随后用物理活性溶剂洗涤SO 2吸收。 吸收SO2后,溶剂进行再生并返回洗涤过程。 为了节约能源,建议用大气将热再生器中的热烟气进行热交换,将其冷却至0℃至60℃之间的温度,并在此温度下用主要由四乙二醇二甲醚组成的溶剂 。 本发明的方法允许利用要净化的烟道气的排气热。

    Process and apparatus for distillation and/or stripping
    3.
    发明授权
    Process and apparatus for distillation and/or stripping 失效
    用于蒸馏和/或汽提的方法和装置

    公开(公告)号:US4695349A

    公开(公告)日:1987-09-22

    申请号:US709247

    申请日:1985-03-07

    IPC分类号: B01D3/00 B01D3/14

    摘要: A process is disclosed for distillation and/or stripping in a column, the lower portion of which is heated and the upper portion of which is cooled. The heating and cooling facilities thereof are coupled with each other by means of a heat pump system. In order to reduce the energy input, the invention provides for driving the heat pump system by means of expansion of a gas or vapor, and with the gas or vapor, after expansion, utilized as the stripping gas in the column.

    摘要翻译: 公开了一种在塔中进行蒸馏和/或汽提的方法,该塔的下部被加热并且其上部被冷却。 其加热和冷却设备通过热泵系统彼此耦合。 为了减少能量输入,本发明提供了通过气体或蒸气的膨胀以及膨胀之后的气体或蒸气来驱动热泵系统,用作塔中的汽提气体。

    Split pressure feed for the selective production of pure oxygen from air
    4.
    发明授权
    Split pressure feed for the selective production of pure oxygen from air 失效
    用于从空气中选择性地生产纯氧的分压进料

    公开(公告)号:US4356013A

    公开(公告)日:1982-10-26

    申请号:US116195

    申请日:1980-01-28

    IPC分类号: F25J3/04

    摘要: In the obtaining of oxygen from air by low-temperature rectification in a double rectification column by compressing the air to be fractionated into higher and lower pressure partial streams; cooling said partial streams in indirect heat exchange with a nitrogen-enriched gaseous stream from the rectification column; and introducing the partial stream of the air to be fractionated which has been compressed to the higher pressure into the lower part of the high pressure column,the improvement of passing at least a part of the partial stream of the air to be fractionated which has been compressed to the lower pressure to a supplemental fractionating column operating at between the pressure ambient in the high-pressure column and the pressure ambient in the low-pressure column, withdrawing from said supplemental column a nitrogen-enriched liquid, passing the latter as reflux to the low-pressure column, engine expanding the remaining portion of the partial stream compressed to the lower pressure and/or a gaseous stream withdrawn from the supplemental fractionating column and introducing resultant engine expanded fluid in a substantially gaseous phase into the low-pressure column.

    摘要翻译: 在双重精馏塔中通过将分馏的空气压缩成更高压和低压的部分气流,在空气中通过低温精馏获得氧气; 在与来自精馏塔的富氮气流进行间接热交换的同时冷却所述部分物流; 将被压缩到较高压力的分馏空气的部分流引入高压塔的下部,改善通过至少一部分已分馏的空气的部分流 压缩到较低的压力至在高压塔中的压力环境和低压塔中的压力环境之间操作的补充分馏塔,从所述补充塔中抽出富氮液体,使其回流到 低压塔,发动机将被压缩到较低压力的部分气流的剩余部分和/或从补充分馏塔排出的气流膨胀,并将基本气态的合成发动机膨胀流体引入低压塔。

    Removal of undesired gaseous components from hot waste gases
    5.
    发明授权
    Removal of undesired gaseous components from hot waste gases 失效
    从热废气中除去不需要的气态成分

    公开(公告)号:US4294590A

    公开(公告)日:1981-10-13

    申请号:US093089

    申请日:1979-11-09

    摘要: For removing undesired gaseous components, e.g., SO.sub.2, from hot combustion gases (from carbonaceous fuels) by scrubbing with a regenerable absorbent, the scrubbing is conducted with a liquid physical absorbent, e.g., dimethylformamide, at a temperature less than 0.degree. C. The cooling requirements of the scrubbing process are supplied by an absorption type refrigeration unit. The hot combustion gases, prior to scrubbing, are cooled in indirect heat exchange, first with air in an upper temperature range cooling zone, and then with cold combustion gas purified by the scrubbing in a lower temperature range cooling zone. The resultant heated air is used in part as (a) air for combustion and in part as (b) an energy source for the operation of the refrigeration unit. A heat pump may be used to supplement the absorption type refrigeration unit. Other aspects include, for example, special regenerator design and absorbent regeneration steps.

    摘要翻译: 为了通过用可再生吸收剂洗涤从热燃烧气体(来自碳质燃料)中除去不需要的气体组分,例如SO 2,在低于0℃的温度下,用液体物理吸收剂例如二甲基甲酰胺进行洗涤。 洗涤过程的冷却要求由吸收型制冷单元提供。 在清洗之前,热燃烧气体在间接热交换中冷却,首先用较高温度范围的冷却区域中的空气冷却,然后通过在较低温度范围的冷却区域进行洗涤来净化的冷燃烧气体。 所得到的加热空气部分地用作(a)用于燃烧的空气,并且部分地用作(b)用于制冷单元的操作的能量源。 可以使用热泵来补充吸收型制冷单元。 其他方面包括例如特殊的再生器设计和吸收再生步骤。

    Process for separation of CO.sub.2 from CO.sub.2 -containing gases
    6.
    发明授权
    Process for separation of CO.sub.2 from CO.sub.2 -containing gases 失效
    从含CO2气体中分离CO2的方法

    公开(公告)号:US4528002A

    公开(公告)日:1985-07-09

    申请号:US602884

    申请日:1984-04-23

    申请人: Gerhard Linde

    发明人: Gerhard Linde

    IPC分类号: B01D53/14

    摘要: For separating CO.sub.2 from CO.sub.2 -containing gases, especially stack gases and/or blast furnace gases, dimethylformamide is employed as a physical scrubbing medium to ensure high CO.sub.2 purity. After absorption of CO.sub.2, the DMF is regenerated and returned into the scrubbing stage. Dimethylformamide is utilized as the scrubbing medium.

    摘要翻译: 为了从含CO 2的气体,特别是烟气和/或高炉气体中分离二氧化碳,使用二甲基甲酰胺作为物理洗涤介质,以确保高的二氧化碳纯度。 吸收二氧化碳后,再生DMF并返回洗涤阶段。 二甲基甲酰胺用作洗涤介质。

    Adsorptive method for the separation of a gas mixture
    7.
    发明授权
    Adsorptive method for the separation of a gas mixture 失效
    用于分离气体混合物的吸附方法

    公开(公告)号:US4448592A

    公开(公告)日:1984-05-15

    申请号:US409019

    申请日:1982-08-17

    申请人: Gerhard Linde

    发明人: Gerhard Linde

    IPC分类号: B01D53/047 B01D53/04

    摘要: A method of recovering at least two product fractions each highly enriched in a respective component of a gas mixture containing at least such components are recovered by separating a stream of the mixture into at least two partial streams and passing this stream separately through respective beds of respective adsorbents and selectively retaining at least one component from each mixture so that the respective product fractions emerge from the adsorbents highly enriched in respective components of this mixture, each adsorbent for a particular one of the fractions has a composition that retains at least one component in which the other fractions is enriched.

    摘要翻译: 通过将混合物流分离成至少两个部分流并将该流分别通过相应的床分别回收,回收至少两个产物级分,每种产物级分高度富集至少含有这些组分的气体混合物的各自组分 吸附剂并且选择性地保留来自每个混合物的至少一种组分,使得相应的产物级分从高度富集在该混合物的相应组分中的吸附剂出现,特定一种级分的每种吸附剂具有保留至少一种组分的组合物,其中 其他部分富集。

    Claus residual gas cleanup using tetraethylene glycol dimethyl ethers as
SO.sub.2 scrubbing agent
    8.
    发明授权
    Claus residual gas cleanup using tetraethylene glycol dimethyl ethers as SO.sub.2 scrubbing agent 失效
    克劳斯残留气体净化使用四乙二醇二甲醚作为SO2洗涤剂

    公开(公告)号:US4795620A

    公开(公告)日:1989-01-03

    申请号:US20182

    申请日:1987-02-27

    摘要: A process is disclosed for the purification of a gaseous stream contaminated at least with CO.sub.2 and H.sub.2 S. The gaseous stream is preheated and subjected, in the presence of recycled SO.sub.2, to a catalytic conversion of H.sub.2 S into elemental sulfur. The thus-obtained sulfur is separated, and the residual gas, which contains at least H.sub.2 S, SO.sub.2, CO.sub.2, and water, is freed absorptively from SO.sub.2 after oxidative conversion of H.sub.2 S to SO.sub.2. It is proposed that the residual gas, after oxidative conversion of H.sub.2 S to SO.sub.2, is cooled in heat exchangers, preferably regenerators, and is subsequently scrubbed with a solvent consisting predominantly of tetraethylene glycol dimethyl ether.

    摘要翻译: 公开了一种用于净化至少被CO 2和H 2 S污染的气流的方法。 将气流预热并在再循环的SO 2存在下进行催化转化为硫化氢。 由此获得的硫被分离,并且至少含有H 2 S,SO 2,CO 2和水的残余气体在氧化成H 2 S至SO 2之后从SO 2吸收释放。 建议将H2S氧化转化成SO2后的残余气体在热交换器,优选再生器中冷却,随后用主要由四甘醇二甲醚组成的溶剂洗涤。

    Method for reversing two regenerators
    10.
    发明授权
    Method for reversing two regenerators 失效
    用于逆转两个再生器的方法

    公开(公告)号:US4424857A

    公开(公告)日:1984-01-10

    申请号:US429419

    申请日:1982-09-30

    申请人: Gerhard Linde

    发明人: Gerhard Linde

    IPC分类号: F28D19/04 F23L15/02 F28D17/00

    摘要: To prevent disruptions in downstream processes due to non-uniform flows arising from the switching operation in two interchangeable regenerator systems, both the feed of a cold fluid to the cooled regenerator and the feed of a hot fluid to the heated regenerator are interrupted, the hot fluid is then introduced into the cooled regenerator while the cold fluid is first conducted through a heat accumulator connected in parallel with the regenerators; a portion of the fluid heated in the heat accumulator is fed into the heated regenerator to purge residual hot fluid therefrom and subsequently the cold fluid is passed in its entirety through the heated regenerator. Particular application is in preventing disruption in the flow, composition and temperature of air of combustion preheated by flue gas.

    摘要翻译: 为了防止由于两个可互换的再生器系统中的开关操作引起的不均匀的流动而导致的下游过程中的破坏,冷却的再生器的冷流体的供给和热流体到加热的再生器的供给被中断,热 然后将流体引入冷却的再生器中,同时冷流体首先通过与再生器并联连接的蓄热器; 在蓄热器中加热的流体的一部分被供给到加热的再生器中以从其中清除残余的热流体,随后冷流体通过加热的再生器全部通过。 特别的应用是防止烟气预热的燃烧空气的流动,组成和温度的破坏。