公开(公告)号：US20170349437A1

公开(公告)日：2017-12-07

申请号：US15536234

申请日：2015-12-15

Applicant: Outotec (Finland) Oy

Inventor： Karl-Heinz Daum ,  Peter Ernst ,  Hannes Storch ,  Wolfram Schalk

IPC: C01B17/80 ,  B01D53/14 ,  C01B17/775

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

Abstract: 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.

公开(公告)号：US09815693B2

公开(公告)日：2017-11-14

申请号：US14905905

申请日：2014-07-18

Applicant: CANSOLV TECHNOLOGY INC.

Inventor： Menno Bastiaan Hendrik Gierman ,  John Nicholas Sarlis ,  Joe Gelder ,  Philippe Micone

IPC: C01B17/04 ,  C01B17/76 ,  C01B17/50

CPC classification number: C01B17/76 ,  C01B17/508

Abstract: A method of producing sulphuric acid from a sour tail gas comprises (a) obtaining a sour tail gas stream comprising H2S or reduced sulphur species or a combination thereof from an oil and gas facility; (b) subjecting the sour tail gas stream to oxidation and obtaining an oxidized gas stream comprising SO2; and, (c) utilizing the oxidized gas stream to obtain sulphuric acid and a SO2 reduced tail gas stream. The method may further comprise subjecting the oxidized gas stream to a regenerable absorption process. The sulphuric acid may be used to produce fertilizer.

公开(公告)号：US09487401B2

公开(公告)日：2016-11-08

申请号：US14406155

申请日：2013-06-03

Applicant: Haldor Topsøe A/S

Inventor： Martin Møllerhøj

IPC: C01B17/76 ,  C01B17/765 ,  C01B17/80 ,  B01J8/02

CPC classification number: C01B17/806 ,  B01J8/0285 ,  B01J2208/00256 ,  B01J2208/027 ,  C01B17/76 ,  C01B17/765 ,  C01B17/803

Abstract: 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.

Abstract translation: 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。

公开(公告)号：US09394245B2

公开(公告)日：2016-07-19

申请号：US14422445

申请日：2013-08-13

Applicant: SOLVAY SPECIALTY POLYMERS USA, LLC.

Inventor： Mahendra Dosi ,  Ziad Husein ,  Ronald Mysona

IPC: C07C303/06 ,  C01B17/76

CPC classification number: C07C303/06 ,  C01B17/76 ,  C07C309/39

Abstract: A process for sulfonating at least one halobenzene with sulfur trioxide (SO3) comprising the following steps: Step 1. manufacturing a gaseous mixture [mixture (M)] comprising SO3 and at least one additional gas different from SO3 by oxidizing sulfur dioxide in the presence of at least one catalyst, wherein the SO3 content in mixture (M) is from 1 to 95% by volume, relative to the total volume of mixture (M); and step 2 contacting said mixture (M) with said at least one halobenzene.

Abstract translation: 一种用三氧化硫（SO 3）磺化至少一种卤代苯的方法，包括以下步骤：步骤1.通过在存在下氧化二氧化硫制备包含SO 3和至少一种不同于SO 3的另外的气体的气态混合物[混合物（M） 的至少一种催化剂，其中混合物（M）中的SO 3含量相对于混合物（M）的总体积为1至95体积％; 步骤2使所述混合物（M）与所述至少一种卤代苯接触。

公开(公告)号：US20150315022A1

公开(公告)日：2015-11-05

申请号：US14651147

申请日：2013-12-10

Applicant: Chemetics Inc.

Inventor： Orlando Perez

IPC: C01B17/76 ,  B01J19/00 ,  C01B17/80

CPC classification number: C01B17/76 ,  B01J19/0013 ,  B01J2219/00081 ,  B01J2219/24 ,  C01B17/803 ,  C01B17/806

Abstract: A method is disclosed for oxidizing sulfur dioxide using the contact process in which a gas stream comprising the sulfur dioxide and oxygen itself is used as the cooling medium in a contact apparatus comprising a double pipe heat exchanger. In associated systems for producing sulfuric acid, certain heat exchangers can be omitted thereby allowing for simpler and less expensive systems. The invention is suitable for systems using either a single or, in particular, a double absorption process. Further, the invention is suitable in new systems or in a retrofit of existing systems.

Abstract translation: 公开了一种使用包括二氧化硫和氧气本身的气流作为冷却介质的接触方法来氧化二氧化硫的方法，所述接触装置包括双管热交换器。 在用于生产硫酸的相关系统中，可以省略某些热交换器，从而允许更简单且更便宜的系统。 本发明适用于使用单一或特别是双重吸收过程的系统。 此外，本发明适用于新系统或现有系统的改造。

公开(公告)号：US08518366B2

公开(公告)日：2013-08-27

申请号：US13512158

申请日：2010-10-28

Applicant: Dieter Förtsch ,  Martin Kürten

Inventor： Dieter Förtsch ,  Martin Kürten

IPC: B01J12/00 ,  B01J19/00 ,  C01B17/54 ,  F23C6/00

CPC classification number: C01B17/60 ,  C01B17/508 ,  C01B17/76 ,  C01B17/7655

Abstract: The present invention relates to a process and a device for the combustion of sulphur and/or sulphur-containing compounds, via which a sufficient production of SO2-containing gases having a high SO2 concentration is made possible. The combustion preferably proceeds using a combustion gas which has an oxygen fraction at least as high as air, but preferably a higher fraction of oxygen. The process and the device should be suitable, in particular, for providing sulphur dioxide as a source for further production of sulphuric acid or highly concentrated SO3-containing gases. In addition, the device and the process should be suitable for oxidizing hydrogen-sulphide-containing gases, such as occur, for example, in the refinery industry, in high concentrations to SO2.

Abstract translation: 本发明涉及一种用于燃烧硫和/或含硫化合物的方法和装置，通过该方法和装置可以使SO 2浓度高的含SO 2的气体的产生成为可能。 燃烧优选使用具有至少与空气一样高的氧分数但优选较高氧分数的燃烧气体。 该方法和装置特别适用于提供二氧化硫作为进一步生产硫酸或高浓度含SO 3的气体的来源。 此外，该装置和方法应适用于将氧化硫化氢的气体，例如在炼油工业中以高浓度氧化成二氧化硫。

公开(公告)号：US20120067173A1

公开(公告)日：2012-03-22

申请号：US13306138

申请日：2011-11-29

Applicant: Eric H. PARTELPOEG

Inventor： Eric H. PARTELPOEG

IPC: C22B5/00 ,  B01J19/00 ,  C01B17/88

CPC classification number: C22B3/08 ,  B01J8/0453 ,  B01J8/0496 ,  B01J2208/00283 ,  C01B17/76 ,  C22B3/0005 ,  C22B3/02 ,  Y02P10/234

Abstract: A system which uses available waste acid process streams from hydrometallurgical extraction processes as absorption media for the direct production of leach grade acid solutions for return to the hydrometallurgical processing circuit for use in liberating metals from metal-bearing materials. The produced acid may have a concentration in the range suitable for processing of metal-bearing materials

Abstract translation: 使用来自湿法冶金提取方法的可用废酸工艺流作为用于直接生产浸出级酸溶液的吸收介质的系统，用于返回到用于从含金属材料释放金属的湿法冶金加工回路。 所生产的酸可以具有适于加工含金属材料的范围内的浓度

公开(公告)号：US07837970B2

公开(公告)日：2010-11-23

申请号：US11816693

申请日：2006-02-11

Applicant: Karl-Heinz Daum

Inventor： Karl-Heinz Daum

IPC: C01B17/43 ,  C01B17/69 ,  C01B17/74

CPC classification number: C01B17/806 ,  C01B17/76 ,  C01B17/7655 ,  Y02P20/129

Abstract: The invention relates to a process and plant for producing sulphuric acid by catalytic oxidation of SO2 to form SO3 in a converter with at least one contact stage, the SO3-containing process gas, after it has passed through at least one contact stage, being withdrawn from the converter and fed to an apparatus for recovering heat, in which steam is generated from feedwater by means of the heat of the process gas, and the process gas then being fed to an absorber, in which the SO3 is absorbed in sulphuric acid. To improve the utilization of heat during the production of sulphuric acid, the feedwater is fed to the heat recovery apparatus at a higher temperature than the process gas fed to the absorber.

Abstract translation: 本发明涉及通过在具有至少一个接触阶段的转化器中通过SO 2的催化氧化生成硫酸来生产硫酸的方法和设备，所述含SO 3的工艺气体在其经过至少一个接触级之后被抽出 从转化器供给到用于回收热的装置，其中通过处理气体的热量从给水产生蒸汽，然后将处理气体进料到其中SO 3被吸收在硫酸中的吸收器。 为了提高在生产硫酸期间的热利用率，给水在比供给到吸收器的工艺气体高的温度下被供给到热回收装置。

公开(公告)号：US20100254889A1

公开(公告)日：2010-10-07

申请号：US12741089

申请日：2008-11-06

Applicant: Thomas Bogenstätter ,  Jörg Torsten Nickel

Inventor： Thomas Bogenstätter ,  Jörg Torsten Nickel

IPC: C01B17/765

CPC classification number: C01B17/76 ,  C01B17/54 ,  C01B17/58

Abstract: A process for preparing sulfuric acid, in which process gases comprising sulfur dioxide are obtained by combustion of liquid sulfur by means of process air introduced from the outside or by dissociation of waste sulfuric acids and the sulfur dioxide in the process gases comprising sulfur dioxide is oxidized to sulfur trioxide and converted into sulfuric acid by the contact process, wherein the process air which is introduced from the outside for combustion of sulfur or the process gases comprising sulfur dioxide which are obtained by dissociation of waste sulfuric acid have their water vapor content reduced by cooling them, is proposed.

Abstract translation: 一种制备硫酸的方法，其中包括二氧化硫的工艺气体是通过从外部引入的工艺空气燃烧液体硫或通过废硫酸的分解和包含二氧化硫的工艺气体中的二氧化硫而被氧化的 通过接触方法转化为硫酸，其中从外部引入硫的燃烧的工艺空气或包含二氧化硫的工艺气体，其通过废硫酸的解离获得，其水蒸气含量降低了 提出冷却。

公开(公告)号：US07794685B2

公开(公告)日：2010-09-14

申请号：US12523230

申请日：2008-01-17

Applicant: Wolf-Christoph Rauser ,  Michael Gasik ,  Heljä Peltola ,  Pekka Taskinen

Inventor： Wolf-Christoph Rauser ,  Michael Gasik ,  Heljä Peltola ,  Pekka Taskinen

IPC: C01B3/02 ,  C01B17/74

CPC classification number: C01B3/065 ,  C01B17/508 ,  C01B17/54 ,  C01B17/74 ,  C01B17/76 ,  Y02E60/362

Abstract: The invention relates to a method for producing gaseous hydrogen and strong sulphuric acid (97-100 wt-%) simultaneously from sulphur dioxide gas and water. Sulphur dioxide gas stream is divided into two separate sub-streams, the first sub-stream is routed for water decomposition in a partial thermochemical cycle of the hydrogen and sulphuric acid production and the second sub-stream is fed to the oxidation of the sulphur dioxide to sulphur trioxide.

Abstract translation: 本发明涉及从二氧化硫气体和水同时生成气态氢和强硫酸（97-100重量％）的方法。 二氧化硫气流分为两个独立的子流，第一个子流在氢和硫酸生产的部分热化学循环中被排列以进行水分解，第二个子流被送入二氧化硫的氧化 到三氧化硫。