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    PROCESS AND PLANT FOR THE PRODUCTION OF SULFURIC ACID
    1.
    发明授权
    PROCESS AND PLANT FOR THE PRODUCTION OF SULFURIC ACID 有权

    公开(公告)号：EP3140253B1

    公开(公告)日：2018-07-04

    申请号：EP14724062.6

    申请日：2014-05-09

    申请人： Outotec (Finland) Oy

    发明人： DAUM, Karl-Heinz ,  STORCH, Hannes ,  SCHALK, Wolfram

    IPC分类号： C01B17/80 ,  C01B17/88 ,  B01D53/50

    CPC分类号： B01D53/507 ,  B01D53/1481 ,  B01D53/18 ,  B01D2251/506 ,  C01B17/806 ,  C01B17/88

    摘要： A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a second concentration of the liquid acid is reached; withdrawing the liquid acid from the sump of the gas purification, where in the gas purification sump is divided by a partition wall into a first and a second section. The concentration of the liquid acid collected in the first section is adjusted to the first concentration. The liquid acid with the first concentration from the first section is at least partially fed back into step and the liquid acid with the second concentration collected in the second section is at least partially withdrawn as product.

    PROCESS AND PLANT FOR THE PRODUCTION OF LIQUID ACID
    2.
    发明公开
    PROCESS AND PLANT FOR THE PRODUCTION OF LIQUID ACID 有权
    VERFAHREN UND ANLAGE ZUR HERSTELLUNG VONFLÜSSIGSÄURE

    公开(公告)号：EP3140253A1

    公开(公告)日：2017-03-15

    申请号：EP14724062.6

    申请日：2014-05-09

    申请人： Outotec (Finland) Oy

    发明人： DAUM, Karl-Heinz ,  STORCH, Hannes ,  SCHALK, Wolfram

    IPC分类号： C01B17/80 ,  C01B17/88 ,  B01D53/50

    CPC分类号： B01D53/507 ,  B01D53/1481 ,  B01D53/18 ,  B01D2251/506 ,  C01B17/806 ,  C01B17/88

    摘要： A process for the production of liquid acid, comprising the steps of: feeding liquid acid with a first concentration into a gas purification; passing a gas through the gas purification such that a second concentration of the liquid acid is reached; withdrawing the liquid acid from the sump of the gas purification, where in the gas purification sump is divided by a partition wall into a first and a second section. The concentration of the liquid acid collected in the first section is adjusted to the first concentration. The liquid acid with the first concentration from the first section is at least partially fed back into step and the liquid acid with the second concentration collected in the second section is at least partially withdrawn as product.

    摘要翻译： 一种制备液体酸的方法，包括以下步骤：（i）将第一浓度的液体酸进料到气体净化中; （ii）使气体通过气体净化，使得达到第二浓度的液体酸; （iii）从气体净化器的贮槽中取出液体酸，其中气体净化槽由分隔壁分成第一和第二段。 将第一部分中收集的液体酸的浓度调节至第一浓度。 具有来自第一部分的第一浓度的液体酸至少部分地反馈到步骤（i）中，并且在第二部分中收集的具有第二浓度的液体酸至少部分地作为产品取出。

    PROCESS AND PLANT FOR IMPROVED ENERGY-EFFICIENT PRODUCTION OF SULFURIC ACID
    5.
    发明公开
    PROCESS AND PLANT FOR IMPROVED ENERGY-EFFICIENT PRODUCTION OF SULFURIC ACID 审中-公开
    用于提高能量生产硫酸的工艺和设备

    公开(公告)号：EP3233723A1

    公开(公告)日：2017-10-25

    申请号：EP15817787.3

    申请日：2015-12-15

    申请人： Outotec (Finland) Oy

    发明人： DAUM, Karl-Heinz ,  ERNST, Peter ,  STORCH, Hannes ,  SCHALK, Wolfram

    IPC分类号： C01B17/76 ,  C01B17/80 ,  C01B17/765

    CPC分类号： C01B17/806 ,  B01D53/1406 ,  B01D53/1481 ,  B01D53/1493 ,  B01D53/507 ,  B01D2252/10 ,  B01D2258/025 ,  B01J2219/00006 ,  C01B17/76 ,  C01B17/7655 ,  C01B17/775 ,  Y02P20/124

    摘要： The invention describes a process for producing sulfuric acid by catalytic oxidation of SO2 to SO3 and subsequent absorption of the SO3 in sulfuric acid, wherein the SO3 is introduced into a first absorption stage (primary absorber) and at least partly absorbed there in concentrated sulfuric acid, wherein the SO3 not absorbed in the first absorption stage is supplied to a second absorption stage (secondary absorber) for the further absorption in concentrated sulfuric acid, and wherein the sulfuric acid is cooled after passing through the two absorption stages. The cooling of the sulfuric acid is effected in at least two heat exchangers connected in parallel, wherein one of the at least two heat exchangers is operated as partial evaporator and is cooled with boiler feed water/steam and the other one is cooled with cooling water and operated as pure acid cooler.

    摘要翻译： 本发明描述了一种通过将SO 2催化氧化成SO 3并随后在硫酸中吸收SO 3来生产硫酸的方法，其中SO 3被引入到第一吸收阶段（主吸收器）并且在那里至少部分被吸收 在浓硫酸中，其中在第一吸收阶段未被吸收的SO 3被供应到第二吸收阶段（第二吸收器）以便在浓硫酸中进一步吸收，并且其中硫酸在通过两个吸收阶段之后被冷却 。 硫酸的冷却在至少两个并联连接的热交换器中进行，其中至少两个热交换器中的一个作为部分蒸发器运行，并用锅炉给水/蒸汽冷却，另一个用冷却水冷却 并作为纯酸冷却器运行。