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    Process of producing concentrated sulfuric acid
    1.
    发明授权
    Process of producing concentrated sulfuric acid 失效
    生产浓硫酸的工艺

    公开(公告)号：US4368183A

    公开(公告)日：1983-01-11

    申请号：US203285

    申请日：1980-11-03

    申请人： Karl-Heinz Dorr ,  Hugo Grimm ,  Ulrich Sander ,  Robert Peichl ,  Franz Maier

    发明人： Karl-Heinz Dorr ,  Hugo Grimm ,  Ulrich Sander ,  Robert Peichl ,  Franz Maier

    IPC分类号： C01B17/775 ,  C01B17/82 ,  C01B17/76

    CPC分类号： C01B17/775

    摘要： SO.sub.2 -containing, hot gases are catalytically converted in part in a first contacting stage. The water and the SO.sub.3 formed is removed from the reaction gas. The remaining gas is heated and then supplied to the second contacting stage. The water vapor content in the reaction gas delivered by a first contacting stage corresponds to an H.sub.2 O/SO.sub.3 mole ratio below 1. The reaction gas delivered by the first contacting stage is precooled by an indirect heat exchange to such a temperature that the wall temperatures of the heat exchanger are above the dew point temperature of the reaction gas. The precooled reaction gas entering a condensing stage is contacted in a venturi with cocurrent sulfuric acid of 98.0 to 100% concentration and a temperature of at least 95.degree. C. The exit temperature of the gas from the condensing stage is maintained at least at 120.degree. C. The gas rises in a succeeding absorption stage through a packing layer, which is contacted with trickling sulfuric acid having a concentration of 98 to 100% and a temperature of 70.degree. to 120.degree. C. The dry gas which leaves the absorption stage and has been freed from SO.sub.3 is maintained at a temperature which is as high as or slightly higher than the temperature of the acid as it initially contacts the packing in the absorption stage. The sulfuric acid concentration is controlled by a supply of water into the sulfuric acid in the condensing and/or absorption stage.

    摘要翻译： 含SO 2的热气体部分地在第一接触阶段被催化转化。 所形成的水和SO 3从反应气体中除去。 将剩余气体加热，然后供给到第二接触级。 由第一接触阶段输送的反应气体中的水蒸汽含量对应于低于1的H 2 O / SO 3摩尔比。由第一接触阶段输送的反应气体通过间接热交换预冷至如此温度 热交换器高于反应气体的露点温度。 进入冷凝阶段的预冷反应气体在文氏管中与98.0至100％浓度的并流硫酸和至少95℃的温度接触。来自冷凝级的气体的出口温度保持在至少120℃ C.气体在接下来的吸收阶段通过填充层升高，该填充层与浓度为98-100％，温度为70-120℃的滴流硫酸接触。离开吸收阶段的干燥气体 已被除去的SO3保持在与吸收阶段最初接触填料时酸的温度高或略高的温度。 通过在冷凝和/或吸收阶段向硫酸中供应水来控制硫酸浓度。

    Process for dehydrating gas with sulfuric acid
    2.
    发明授权
    Process for dehydrating gas with sulfuric acid 失效
    用硫酸脱气的方法

    公开(公告)号：US4023938A

    公开(公告)日：1977-05-17

    申请号：US568341

    申请日：1975-04-15

    申请人： Hans Guth ,  Gerhard Jonas ,  Klaus Kleine-Weischede ,  Hermann Wieschen ,  Hans-Joachim Kaiser ,  Karl-Heinz Dorr ,  Hugo Grimm

    发明人： Hans Guth ,  Gerhard Jonas ,  Klaus Kleine-Weischede ,  Hermann Wieschen ,  Hans-Joachim Kaiser ,  Karl-Heinz Dorr ,  Hugo Grimm

    IPC分类号： B01D53/14 ,  B01D53/18 ,  B01D53/26 ,  C01B17/56

    CPC分类号： B01D53/263 ,  B01D1/007 ,  B01D53/14 ,  B01D53/1406 ,  B01D53/18 ,  C01B17/56

    摘要： In the removal of water from a gas by contact with sulfuric acid, the improvement which comprises supplying the sulfuric acid in finely divided form having a surface of about 10.sup.4 to 10.sup.7 m.sup.2 /h at a concentration of about 95 to 99% and a temperature of about 35.degree. to 80.degree. C and with a contact time of about 0.2 to 2 seconds, whereby the residual moisture content of the gas is reduced to about 30 to 250 mg of H.sub.2 O/Nm.sup.3. Preferably the sulfuric acid is sprayed through a constriction into a vessel through which the gas is passed. The large sulfuric acid surface area permits high levels of dehydration to be achieved with far less sulfuric acid than heretofore believed possible and with small vessels and minimal contact times. Contact may be effected serially in several stages with the spent acids combined, brought up to initial concentration and recirculated.

    摘要翻译： 在通过与硫酸接触从气体除去水时，其改进包括以约95至99％的浓度提供具有约104至107m 2 / h表面的细碎形式的硫酸和温度 约35℃至80℃，接触时间约0.2至2秒，从而将气体的残留水分降低至约30至250mg的H 2 O / Nm 3。 优选地，硫酸通过收缩部喷射到气体通过的容器中。 大的硫酸表面积允许以比迄今所认为可能的少得多的硫酸和小容器和最小的接触时间来实现高水平的脱水。 接触可以在几个阶段中连续进行，废酸组合，达到初始浓度并再循环。

    Process of purifying flue gases
    3.
    发明授权
    Process of purifying flue gases 失效
    烟道气净化工艺

    公开(公告)号：US5030428A

    公开(公告)日：1991-07-09

    申请号：US325595

    申请日：1989-03-20

    申请人： Karl-Heinz Dorr ,  Hugo Grimm ,  Heinz Enumann ,  Jurgen Adlkofer

    发明人： Karl-Heinz Dorr ,  Hugo Grimm ,  Heinz Enumann ,  Jurgen Adlkofer

    IPC分类号： B01D53/60 ,  B01D53/74 ,  B01D53/86 ,  B01D53/94 ,  C01B17/76 ,  F23J15/00

    CPC分类号： F23J15/006 ,  B01D53/8637 ,  C01B17/76 ,  F23J2215/20 ,  F23J2217/102 ,  F23J2219/10

    摘要： In flue gases or other humid exhaust gases which contain NO.sub.x and SO.sub.2, the NO.sub.x content is reduced and the SO.sub.2 content is oxidized to SO.sub.3 by a catalytic processing and the SO.sub.3 content is subsequently condensed as sulfuric acid. In order to prevent a clogging and deterioration of the catalyst and a contamination of the sulfuric acid the flue gas is subjected before the catalytic processing to a fine dedusting by a scrubbing with hot dilute sulfuric acid. In dependence on the water content of the flue gases the concentration of sulfuric acid in the dilute sulfuric acid and the temperature of the latter are adjusted so that no water will be transferred from the flue gases to the dilute sulfuric acid and no water or only a small amount of water will be transferred from the dilute sulfuric acid to the flue gas.

    摘要翻译： 在含有NOx和SO2的烟道气或其他潮湿废气中，NOx含量降低，SO2含量通过催化处理被氧化成SO3，SO3含量随后被浓缩为硫酸。 为了防止催化剂的堵塞和劣化以及硫酸在催化加工之前被污染，通过用热的稀硫酸洗涤来进行精细除尘。 根据烟道气的含水量，调节稀硫酸中硫酸的浓度和后者的温度，使得不会将水从废气中转移到稀硫酸中，不会将水或只有一种 少量的水将从稀硫酸转移到烟气中。

    Process of producing sulfuric acid
    4.
    发明授权
    Process of producing sulfuric acid 失效
    硫酸生产工艺

    公开(公告)号：US4533537A

    公开(公告)日：1985-08-06

    申请号：US519958

    申请日：1983-08-03

    申请人： Heinz Dittmar ,  Manfred Beckmann ,  Karl-Heinz Dorr ,  Ulrich Rothe ,  Ulrich Sander

    发明人： Heinz Dittmar ,  Manfred Beckmann ,  Karl-Heinz Dorr ,  Ulrich Rothe ,  Ulrich Sander

    IPC分类号： C01B17/765 ,  C01B17/82 ,  C01B17/74

    CPC分类号： C01B17/7655 ,  Y02P20/129

    摘要： The SO.sub.2 content of gases is catalytically reacted to form SO.sub.3. The SO.sub.3 -containing gases are cooled in a plurality of stages with a cooling fluid (A) before the SO.sub.3 is absorbed. The absorbing acid is cooled by a cooling fluid (B) which delivers heat to a consumer. To increase the temperature of the cooling fluid (B) or to reduce the expenditue and to prevent a temperature drop in the SO.sub.3 -containing gases below the dew point temperature, the SO.sub.3 -containing gases are cooled first by and indirect heat exchange and then by a second indirect heat exchange with a cooling fluid (A) to a temperature slightly above the dew point temperature of the SO.sub.3 -containing gases. The cooling fluid (A) is conducted in a closed cycle. The sulfuric acid circulated through the absorber is cooled by an indirect heat exchange with a liquid cooling fluid (B), which is conducted in a closed cycle. The liquid cooling fluid (B) which has been heated is heated further by an indirect heat exchange with the heated cooling fluid (A). The hot cooling fluid (B) is cooled by an indirect heat exchange with the consumer.

    摘要翻译： 气体的SO2含量被催化反应形成SO 3。 在SO 3被吸收之前，含有SO 3的气体在冷却流体（A）的多个阶段中被冷却。 吸收酸由向消费者传递热量的冷却流体（B）冷却。 为了提高冷却液（B）的温度或减少消耗，并防止低于露点温度的含SO3的气体的温度下降，先将含SO3的气体先进行冷却和间接热交换，然后通过 与冷却流体（A）的第二次间接热交换到略高于含SO 3的气体的露点温度的温度。 冷却液（A）在闭合循环中进行。 循环通过吸收器的硫酸通过与封闭循环中进行的液体冷却流体（B）的间接热交换来冷却。 已加热的液体冷却流体（B）通过与加热的冷却流体（A）的间接热交换进一步加热。 热的冷却流体（B）通过与消费者的间接热交换来冷却。

    Process of purifying flue gases
    6.
    发明授权
    Process of purifying flue gases 失效
    烟道气净化工艺

    公开(公告)号：US4910011A

    公开(公告)日：1990-03-20

    申请号：US284210

    申请日：1988-12-14

    申请人： Karl-Heinz Dorr ,  Hugo Grimm ,  Heinz Neumann ,  Norbert Olhms

    发明人： Karl-Heinz Dorr ,  Hugo Grimm ,  Heinz Neumann ,  Norbert Olhms

    IPC分类号： B01D53/50 ,  B01D53/77 ,  B01D53/86 ,  B01D53/94

    CPC分类号： B01D53/8637

    摘要： In flue gases or other humid exhaust gases which are relatively cold and contain SO.sub.2, NO.sub.2 and other gaseous pollutants, the SO.sub.2 content is oxidized to SO.sub.3 and the NO content is reduced by a catalytic treatment, the SO.sub.3 content is condensed as sulfuric acid and other gaseous pollutants are removed by being scrubbed with aqueous liquids at low temperatures. In order to heat up the flue gas to the temperature required for the catalysis, the flue gas is heated up in a first heating-up stage by an indirect heat exchange with the catalytically treated gas before the catalytic treatment, the heated-up gas is heated up further in a second heating-up stage to the temperature required for the catalytic treatment, the catalytically treated gas which has been cooled in the first heating-up stage is cooled further in an indirect heat exchanger below the dew point temperature of sulfuric acid and is subsequently fed to an SO.sub.3 condenser. The remaining sulfuric acid vapor is absorbed by sprayed dilute sulfuric acid to form a dilute sulfuric acid having a predetermined concentration, the gas leaving the SO.sub.3 condenser is scrubbed in a scrubber with a sprayed aqueous liquid and is thus cooled to 40.degree. to 60.degree. C. and the purified gas is reheated to the required chimney inlet temperature.

    摘要翻译： 在相对较冷且含有SO2，NO2和其他气态污染物的烟道气或其他潮湿废气中，SO2含量被氧化为SO3，通过催化处理使NO含量降低，SO3含量以硫酸等浓缩 通过在低温下用含水液体洗涤除去气态污染物。 为了将烟气加热至催化所需的温度，在催化处理之前，通过与催化处理气体的间接热交换，在第一加热阶段将烟道气加热，加热气体为 在第二加热阶段进一步加热到催化处理所需的温度，在第一加热阶段中被冷却的催化处理气体在低于硫酸露点温度的间接热交换器中进一步冷却 并随后进料至SO 3冷凝器。 剩余的硫酸蒸气被喷射的稀硫酸吸收，形成具有预定浓度的稀硫酸，离开SO 3冷凝器的气体在洗涤器中用喷射的水性液体洗涤，并被冷却至40℃至60℃ 并将净化的气体再加热至所需的烟囱入口温度。

    Process for absorbing SO.sub.3
    8.
    发明授权
    Process for absorbing SO.sub.3 失效
    吸收SO（HD 3）的方法

    公开(公告)号：US3950493A

    公开(公告)日：1976-04-13

    申请号：US508443

    申请日：1974-09-23

    申请人： Karl-Heinz Dorr ,  Lothar Reh ,  Hugo Grimm ,  Karel Vydra

    发明人： Karl-Heinz Dorr ,  Lothar Reh ,  Hugo Grimm ,  Karel Vydra

    IPC分类号： B01D53/50 ,  B01D53/77 ,  C01B17/74 ,  C01B17/80 ,  B01D53/34

    CPC分类号： C01B17/806 ,  Y10S261/54

    摘要： A process for removing sulfur trioxide from gases wherein the sulfur trioxide-containing gas is treated with sulfuric acid in a Venturi absorber, the sulfur-trioxide laden sulfuric acid is passed in indirect heat exchange with a cooling fluid within the widening outlet of the absorber and the sulfur trioxide-laden sulfuric acid is separated from the gas phase.

    摘要翻译： 一种从气体中除去三氧化硫的方法，其中在文氏管吸收器中用硫酸处理含三氧化硫的气体，将含硫三氧化硫的硫酸与吸收器加宽出口内的冷却流体进行间接热交换， 将含三氧化硫的硫酸与气相分离。

    Process for catalytically reacting gases having a high SO.sub.2 content
    9.
    发明授权
    Process for catalytically reacting gases having a high SO.sub.2 content 失效
    具有高SO {HD 2 {B含量的气体的催化反应气体的方法

    公开(公告)号：US3997655A

    公开(公告)日：1976-12-14

    申请号：US618192

    申请日：1975-09-30

    申请人： Lothar Reh ,  Karl-Heinz Dorr ,  Hugo Grimm ,  Karel Vydra

    发明人： Lothar Reh ,  Karl-Heinz Dorr ,  Hugo Grimm ,  Karel Vydra

    IPC分类号： C01B17/765 ,  C01B17/76

    CPC分类号： C01B17/765

    摘要： Gases having a high SO.sub.2 content are catalytically reacted in a contacting zone having a plurality of series-connected contacting trays. A partial stream of partly reacted gases from the contacting zone containing SO.sub.3 is admixed with the SO.sub.2 containing gas before entering the first contacting tray. The gases are subjected to interstage cooling between contacting trays. At least a portion of the partly reacted gases is passed through an absorber prior to mixing with the feed stock gas having a high SO.sub.2 content. The rate at which SO.sub.3 is absorbed is increased in dependence on the loss of catalyst activity in the contacting zones such that the conversion of SO.sub.2 to SO.sub.3 in the contacting trays remains approximately constant.

    摘要翻译： 具有高SO 2含量的气体在具有多个串联连接的接触盘的接触区中催化反应。 在进入第一接触盘之前，将含有SO 3的接触区的部分反应气体的部分气体与含SO 2的气体混合。 气体在接触盘之间经历级间冷却。 在与具有高SO 2含量的原料气体混合之前，部分反应的气体的至少一部分通过吸收器。 吸收SO 3的速率依赖于接触区中催化剂活性的损失而增加，使得接触塔盘中的SO 2转化为SO 3保持近似恒定。