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1. 发明申请

US20190202693A1 ENERGY EFFICIENT SULFURIC ACID SYSTEM FOR HUMID ENVIRONMENTS 审中-公开
公开(公告)号：US20190202693A1
公开(公告)日：2019-07-04
申请号：US16098818
申请日：2017-04-19
申请人： Chemetics Inc.
发明人： Rene Dijkstra , Amit Shah
IPC分类号： C01B17/765 , C01B17/80 , C01B17/54 , B01D53/26 , F28D7/00 , F28F9/02
CPC分类号： C01B17/7655 , B01D53/263 , C01B17/54 , C01B17/80 , C01B17/803 , C01B17/806 , F28D7/0008 , F28F9/02 , Y02P20/124
摘要： A contact process, sulfuric acid system and method are disclosed for producing sulphuric acid with improved operating efficiency in humid environments. The system comprises a pre-drying absorber for pre-drying humid air with weak sulfuric acid. Weak sulfuric acid from the pre-drying absorber is provided to a subsystem comprising two sulfur trioxide absorbers and a heat exchanger for the recovery of heat via steam production. This arrangement allows for a marked increase in steam production (i.e. energy efficiency). In a separate improvement, the emission apparatus for the system can be simplified using a peroxide tail gas scrubber comprising upper and lower scrubber sections in which the upper scrubber section consists essentially of tray type scrubbers.

2. 发明授权

US07820134B2 Process and plant for producing sulfuric acid 有权
标题翻译：生产硫酸的工艺和设备
公开(公告)号：US07820134B2
公开(公告)日：2010-10-26
申请号：US10592290
申请日：2005-02-19
申请人： Karl-Heinz Daum , Wolf-Christoph Rauser
发明人： Karl-Heinz Daum , Wolf-Christoph Rauser
IPC分类号： C01B17/69 , C01B17/74
CPC分类号： C01B17/76 , C01B17/80 , C01B17/806
摘要： There are described a process and a plant for producing sulfuric acid by catalytic oxidation of SO2 to SO3 and subsequent absorption of SO3 in sulfuric acid, wherein the SO3 is introduced into a first absorption stage and absorbed there in concentrated sulfuric acid, wherein the sulfuric acid having a higher concentration due to the absorption is passed through a heat exchanger and cooled, and wherein the non-absorbed SO3 is supplied to a second absorption stage for the further absorption in sulfuric acid. Before the first absorption stage a partial stream of SO3 is branched off and supplied directly to the second absorption stage.
摘要翻译：描述了通过将SO 2催化氧化成SO 3并随后在硫酸中吸收SO 3来生产硫酸的方法和设备，其中SO 3被引入第一吸收阶段并在浓硫酸中吸收，其中硫酸由于吸收而具有较高的浓度通过热交换器并冷却，并且其中未吸收的SO 3被供应到第二吸收级以便在硫酸中进一步吸收。在第一吸收阶段之前，部分SO 3流被分支并直接供应到第二吸收阶段。

3. 发明申请

US20080253957A1 Process and Plant for Producing Sulfuric Acid 有权
标题翻译：生产硫酸的工艺和工艺
公开(公告)号：US20080253957A1
公开(公告)日：2008-10-16
申请号：US10592290
申请日：2005-02-19
申请人： Karl-Heinz Daum , Wolf-Christoph Rauser
发明人： Karl-Heinz Daum , Wolf-Christoph Rauser
IPC分类号： C01B17/76 , C01B17/80
CPC分类号： C01B17/76 , C01B17/80 , C01B17/806
摘要： There are described a process and a plant for producing sulfuric acid by catalytic oxidation of SO2 to SO3 and subsequent absorption of SO3 in sulfuric acid, wherein the SO3 is introduced into a first absorption stage and absorbed there in concentrated sulfuric acid, wherein the sulfuric acid having a higher concentration due to the absorption is passed through a heat exchanger and cooled, and wherein the non-absorbed SO3 is supplied to a second absorption stage for the further absorption in sulfuric acid. Before the first absorption stage a partial stream of SO3 is branched off and supplied directly to the second absorption stage.
摘要翻译：描述了通过SO 2催化氧化至SO 3并随后在硫酸中吸收SO 3的生产硫酸的方法和设备酸，其中SO 3被引入第一吸收阶段并在浓硫酸中吸收，其中由于吸收而具有较高浓度的硫酸通过热交换器并冷却，其中将未吸收的SO 3提供给第二吸收级用于在硫酸中进一步吸收。在第一吸收阶段之前，部分SO 3流被分支并直接供应到第二吸收级。

4. 发明授权

US5503821A Methods for recovering high grade process energy from a contact sulfuric acid process 失效
标题翻译：从接触硫酸工艺回收高级工艺能量的方法
公开(公告)号：US5503821A
公开(公告)日：1996-04-02
申请号：US70260
申请日：1993-06-02
申请人： Donald R. McAlister , Daniel R. Schneider
发明人： Donald R. McAlister , Daniel R. Schneider
IPC分类号： C01B17/765 , C01B17/775 , C01B17/80 , C01B17/69 , C01B17/74
CPC分类号： C01B17/765 , C01B17/7655 , C01B17/775 , C01B17/806 , Y02P20/124 , Y02P20/129
摘要： An improved process for the recovery of high grade energy from a contact sulfuric acid manufacturing process. Improvements include: injection of steam between an intermediate catalyst stage and a heat recovery absorption tower and/or a heat exchanger for transfer of heat from conversion gas to high pressure boiler feed water; use of a condensing economizer for recovery of the vapor phase energy of formation of sulfuric acid from a wet conversion gas; and use of heat recovery system absorption acid for preheating air to a sulfur burner, the heat transferred to the combustion air being recovered at high pressure and temperature in a waste heat boiler.
摘要翻译：一种从接触式硫酸制造过程中回收高级能量的改进方法。改进包括：在中间催化剂级和热回收吸收塔之间注入蒸汽和/或用于将热量从转化气体转移到高压锅炉给水的热交换器; 使用冷凝节能器从湿转化气体回收形成硫酸的气相能量; 并使用热回收系统吸收酸来将空气预热到硫燃烧器，传递到燃烧空气的热量在废热锅炉中以高压和高温回收。

5. 发明授权

US3950493A Process for absorbing SO.sub.3 失效
标题翻译：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。

6. 发明授权

US2515435A Apparatus for the manufacture of sulfuric acid 失效
标题翻译：用于制造硫酸的装置
公开(公告)号：US2515435A
公开(公告)日：1950-07-18
申请号：US70675546
申请日：1946-10-30
申请人： ALLIED CHEM & DYE CORP
发明人： ALLEN WALTER S
IPC分类号： C01B17/80
CPC分类号： C01B17/806

7. 发明申请

US20190202694A1 Method And Equipment For Cooling Sulphuric Acid 审中-公开
公开(公告)号：US20190202694A1
公开(公告)日：2019-07-04
申请号：US16078168
申请日：2016-11-07
申请人： NC Engenharia Industria E Comercio Ltda
发明人： Nelson Perella Clark
IPC分类号： C01B17/80 , C01B17/765 , F28D1/02 , F28D1/03
CPC分类号： C01B17/806 , B01D53/50 , C01B17/76 , C01B17/765 , C01B17/80 , F28D1/0226 , F28D1/03 , F28D2021/0022 , Y02P20/124 , Y02P20/57
摘要： A method and system for cooling sulfuric acid aqueous solutions (H2SO4) belonging to the field of chemical processes, which is part of a contact process for production of sulfuric acid with or without energy recovery. The method comprises absorption of SO3, which produces heated concentrated sulfuric acid and indirectly cooling the hot acid. The method uses a sulfuric acid-inert coolant. A cooling step comprises an intermediate indirect acid-fluid cooling and a second fluid-water or fluid indirect cooling step—third fluid, wherein when the process is of the type with energy recovery. A third step includes energy recovery, steam generation. A system to perform the method, which works next to the SO3 absorption tower comprises an acid cooling loop consisting of an intermediate acid-fluid heat exchanger; a second fluid-water heat exchanger, and when the process is of the type with energy recovery, said equipment further includes a steam generation boiler.

8. 发明申请

US20180201507A1 PROCESS AND APPARATUS FOR COOLING A GAS CONTAINING SO2 AND/OR SO3 AND TRACES OF WATER 审中-公开
公开(公告)号：US20180201507A1
公开(公告)日：2018-07-19
申请号：US15744307
申请日：2016-06-30
申请人： OUTOTEC (FINLAND) OY
发明人： Karl-Heinz DAUM , Hannes STORCH , Ralf NEUMANN , Wolfram SCHALK
IPC分类号： C01B17/80 , C01B17/60 , F28F27/02
CPC分类号： C01B17/806 , C01B17/60 , F28D2020/0082 , F28F27/02 , F28F2200/00
摘要： The above mentioned invention describes a process for cooling a gas mixture of SO2 and/or SO3 and water, wherein the gas mixture is cooled by means of a first heat exchanger carrying a coolant. The temperature of the coolant lies above the dew point of the gas or gas mixture.

9. 发明申请

US20150147266A1 PROCESS FOR THE OXIDATION OF SO2 TO SO3 有权
标题翻译： SO2氧化SO3的方法
公开(公告)号：US20150147266A1
公开(公告)日：2015-05-28
申请号：US14406155
申请日：2013-06-03
申请人： Haldor Topsøe A/S
发明人： Martin Møllerhøj
IPC分类号： C01B17/80 , C01B17/76 , B01J8/02
CPC分类号： C01B17/806 , B01J8/0285 , B01J2208/00256 , B01J2208/027 , C01B17/76 , C01B17/765 , C01B17/803
摘要： The present invention relates to a process plant for the oxidation of SO2 to SO3 in a process gas, said process plant comprising a heat exchanger configured for heating the process gas by heat exchange with an oxidized process gas and/or a further oxidized process gas by providing thermal contact between said process gas and said oxidized process gas and/or said further oxidized process gas, a first zone of material catalytically active in oxidation of SO2 to SO3, and a boiler configured for containing steam being heated by the oxidized process gas and/or the further oxidized process after said oxidized process gas has been cooled in the heat exchanger characterized in the cooled oxidized process gas in the boiler being non-condensing with the benefit of providing the possibility for a smaller heat exchanger which may be made with only moderate corrosion resistant materials, compared to a process plant according to the prior art, as well as a related process.
摘要翻译：本发明涉及一种用于在工艺气体中氧化SO 2至SO 3的工艺装置，所述工艺装置包括热交换器，该热交换器构造成通过与氧化工艺气体和/或另外氧化的工艺气体进行热交换来加热工艺气体在所述工艺气体和所述氧化工艺气体和/或所述另外氧化的工艺气体之间提供热接触，在SO 2氧化成SO 3时催化活性的第一材料区，以及用于容纳被氧化工艺气体加热的蒸汽的锅炉，以及所述氧化处理气体在所述热交换器中被冷却之后的进一步氧化过程，其特征在于，所述锅炉中冷却的氧化工艺气体是非冷凝的，有利于提供可能只能制造的较小热交换器与根据现有技术的加工厂相比，中等耐腐蚀材料以及相关方法。

10. 发明授权

US08926936B2 Process for production of sulphuric acid 有权
标题翻译：硫酸生产工艺
公开(公告)号：US08926936B2
公开(公告)日：2015-01-06
申请号：US14110099
申请日：2012-03-16
申请人： Anders Helbo Hansen , Anders Juul Rasmussen , Mads Lykke
发明人： Anders Helbo Hansen , Anders Juul Rasmussen , Mads Lykke
IPC分类号： F25B1/00 , F25B29/00 , C01B17/69 , F25J1/00 , B01D5/00 , B01D19/00 , C01B17/765 , C01B17/80 , C01B17/74 , C01B17/90 , F16L53/00 , F16L55/027
CPC分类号： F25J1/0002 , B01D5/0039 , B01D19/0036 , C01B17/74 , C01B17/765 , C01B17/806 , C01B17/90 , F16L53/30 , F16L55/027 , Y10T137/3003
摘要： The invention relates to a condenser, having a process gas side and a heat transfer medium side said condenser being configured for feeding a hot process gas containing a condensable component to an inlet of the condensing side, and being further configured for withdrawing a cooled process gas from an outlet of the condensing side, and being even further configured for withdrawing a condensate in a position proximate to one end of the condenser, and said condenser having the process gas side divided in a process gas cooling zone configured for having a cool heat transfer medium inlet and a heated heat transfer medium outlet, and a process gas re-heating zone downstream the process gas cooling section, configured for re-heating of the process gas, as well as a processes for condensation and production of sulphuric acid employing such a condenser.
摘要翻译：本发明涉及一种具有工艺气体侧和传热介质侧的冷凝器，所述冷凝器被配置为将含有可冷凝组分的热处理气体供给到冷凝侧的入口，并且还被构造成用于抽出冷却的工艺气体并且甚至进一步构造成用于在靠近冷凝器的一端的位置抽出冷凝物，并且所述冷凝器具有被分配在处理气体冷却区中的处理气体侧，该处理气体冷却区被配置为具有冷却传热介质入口和加热的传热介质出口，以及在处理气体冷却部分下游的处理气体再加热区域，其被配置用于再加热工艺气体，以及使用这种方法的硫酸的冷凝和生产方法冷凝器

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