公开(公告)号：US20230294990A1

公开(公告)日：2023-09-21

申请号：US18004371

申请日：2021-07-12

申请人： OCP SA

发明人： Yassine Azhari

IPC分类号： C01B17/79 ,  C01B17/80

CPC分类号： C01B17/79 ,  C01B17/803

摘要： The invention relates to a method for manufacturing sulphuric acid, which involves converting sulphur dioxide SO2 into sulphur trioxide S03, by injecting gaseous sulphur dioxide into a converter (1) inside which at least one mass (2) of a catalyst for the conversion is present, and according to which, during phases in which the injection of the gaseous sulphur dioxide is stopped, the space inside the converter (1) is heated in such a way as to maintain a minimum temperature of 200° C., and preferably 250° C., within each catalyst mass (2), characterized by the fact that the stopping of the injection of the sulphur dioxide is slaved to the starting of the heating, and vice versa.

公开(公告)号：US20220177306A1

公开(公告)日：2022-06-09

申请号：US17606557

申请日：2020-04-29

申请人： HALDOR TOPSØE A/S

发明人： Morten THELLEFSEN ,  Mads LYKKE ,  Martin MØLLERHØJ

IPC分类号： C01B17/04 ,  C01B17/80 ,  B01D53/86

摘要： A revamp process for modifying a sulfur abatement plant including a Claus process plant, the Claus process plant including a Claus reaction furnace and one or more Claus conversion stages, each Claus conversion stage including a conversion reactor and a means for elemental sulfur condensation, and a means of Claus tail gas oxidation configured for receiving a Claus tail gas from said Claus process plant and configured for providing an oxidized Claus tail gas, the process revamp including: a) providing a sulfuric acid producing tail gas treatment plant producing sulfuric acid, and b) providing a means for transferring an amount or all of the sulfuric acid produced in said sulfuric acid producing tail gas treatment plant to said Claus reaction furnace, wherein the moles of sulfur in the transferred sulfuric acid relative to the moles of elemental sulfur withdrawn from the Claus process plant is from 3% to 25%.

公开(公告)号：US11007498B2

公开(公告)日：2021-05-18

申请号：US16650616

申请日：2018-10-01

申请人： HALDOR TOPSØE A/S

发明人： Geert Colding ,  Uffe Bach Thomsen

IPC分类号： C01B17/765 ,  B01J8/04 ,  C01B17/80

摘要： In a converter for the catalytic oxidation of SO2 to SO3 in a sulfuric acid plant, which comprises a boiler section for the cooling of process gas between catalytic layers (beds), one or more water tube boilers (inter-bed boilers) having horizontal or slightly sloped tubes are used to cool the process gas between the catalytic layers (beds) in the converter. Each water tube boiler is provided with a process gas side bypass to control the temperature to the downstream catalyst layer.

公开(公告)号：US20170182457A1

公开(公告)日：2017-06-29

申请号：US15308720

申请日：2014-05-09

申请人： OUTOTEC (FINLAND) OY

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

IPC分类号： B01D53/50 ,  B01D53/18 ,  B01D53/14 ,  C01B17/80 ,  C01B17/88

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.

公开(公告)号：US09227845B2

公开(公告)日：2016-01-05

申请号：US14343074

申请日：2012-08-30

申请人： Karl-Heinz Daum ,  Wolfram Schalk

发明人： Karl-Heinz Daum ,  Wolfram Schalk

IPC分类号： B01F3/04 ,  C01B17/80 ,  B01J10/00 ,  B01J19/30 ,  B01J8/02 ,  C23C8/20 ,  C23C8/22

CPC分类号： C01B17/806 ,  B01J8/0292 ,  B01J10/00 ,  B01J19/305 ,  B01J2208/00884 ,  C23C8/20 ,  C23C8/22

摘要： A packed tower for the absorption of water or SO3 in sulfuric acid includes a jacket and a domed grid disposed within the jacket. The domed grid is held on an L-shaped ring such that a gap is formed between an outside diameter of the domed grid and the jacket. A bed of packings is held on the domed grid through which the sulfuric acid charged from above trickles. A gas supply tube is disposed in a lower region of the tower. A gas outlet is disposed above the bed. An acid outlet is disposed in the lower region of the tower.

摘要翻译： 用于在硫酸中吸收水或SO 3的填充塔包括夹套和设置在护套内的圆顶格栅。 圆顶格栅保持在L形环上，使得在圆顶格栅的外径和外套之间形成间隙。 填料床保持在圆顶格栅上，从上方汲取硫酸。 气体供给管设置在塔的下部区域中。 气体出口设置在床的上方。 酸出口设置在塔的下部区域中。

公开(公告)号：US09162890B2

公开(公告)日：2015-10-20

申请号：US14216084

申请日：2014-03-17

申请人： MECS, Inc.

发明人： Ernesto Vera-Castañeda

IPC分类号： C01B17/74 ,  C01B17/765 ,  C01B17/80

CPC分类号： C01B17/74 ,  C01B17/765 ,  C01B17/806 ,  Y02P20/124 ,  Y02P20/129

摘要： A contact process for manufacture of sulfuric acid in which the vapor phase heat of formation of sulfuric acid in the sulfur trioxide conversion gas and the heat of absorption of SO3 in sulfuric acid is recovered by transfer of heat from the absorption acid to high pressure boiler feed water that is fed to a waste heat boiler where steam is generated at a pressure of at least 40 bar by transfer of heat from sulfur dioxide combustion gas.

摘要翻译： 用于制造硫酸的接触方法，其中在三氧化硫转化气体中形成硫酸的气相热和硫酸中SO 3的吸收热量通过从吸收酸转移到高压锅炉进料来回收硫酸 供给到通过从二氧化硫燃烧气体传递热量而在至少40巴的压力下产生蒸汽的废热锅炉的水。

公开(公告)号：US09108846B2

公开(公告)日：2015-08-18

申请号：US14130354

申请日：2012-06-29

申请人： Ren Zhou ,  Rui Huang

发明人： Ren Zhou ,  Rui Huang

IPC分类号： C01B17/69 ,  F28D1/00 ,  C01B17/76 ,  F28F21/00 ,  C01B17/50 ,  C01B17/80 ,  F28F9/10 ,  F28F19/00 ,  F28D7/16 ,  F28F19/04 ,  F28D21/00

CPC分类号： C01B17/76 ,  C01B17/508 ,  C01B17/806 ,  F28D7/1623 ,  F28D2021/0022 ,  F28F9/10 ,  F28F19/002 ,  F28F19/04 ,  F28F21/006 ,  F28F2230/00 ,  F28F2265/26

摘要： Provided is a method for preparing sulfuric acid by using hydrogen sulfide. The method comprises the following steps: (1) performing a reduction-oxidation reaction between an H2S feed gas and oxygen to prepare SO2; (2) cooling the product acquired in step (1) to a temperature between 390° C. and 430° C., then performing a catalyzed oxidation reaction with oxygen; and (3) cooling the product acquired in step (2), then further cooling to a temperature between 60° C. and 120° C., collecting H2SO4 product. Also provided is a heat exchanger, comprising a housing and several glass pipes arranged within the housing along the direction of a long axis of the housing, arching between two lateral walls thereof; the adjacent glass pipes are connected head-to-tail. The method provides great hydrogen sulfide removal efficiency, simple process flow, and allows for economic efficiency of apparatus and reasonable utilization of energy.

摘要翻译： 提供了通过使用硫化氢制备硫酸的方法。 该方法包括以下步骤：（1）在H2S进料气和氧气之间进行还原氧化反应制备SO2; （2）将步骤（1）中获得的产物冷却至390℃至430℃之间的温度，然后与氧气进行催化氧化反应; 和（3）冷却步骤（2）中获得的产品，然后进一步冷却至60℃至120℃的温度，收集H 2 SO 4产物。 还提供了一种热交换器，其包括壳体和沿着壳体的长轴方向布置在壳体内的几个玻璃管，在其两个侧壁之间拱起; 相邻的玻璃管头对头连接。 该方法提供了极好的硫化氢去除效率，工艺流程简单，并且能够提高设备的经济效益和合理利用能源。

公开(公告)号：US08518365B2

公开(公告)日：2013-08-27

申请号：US13388733

申请日：2010-07-12

申请人： Jan Schoeneberger ,  Holger Thielert

发明人： Jan Schoeneberger ,  Holger Thielert

IPC分类号： C01B17/74 ,  C01B17/80

CPC分类号： C01B17/765 ,  C01B17/79

摘要： The invention relates to a method and an installation for producing sulfuric acid. First of all, a product gas flow (5) containing sulfur dioxide is produced. The product gas flow (5) is supplied to a reaction chamber (1). A catalyst (3) is located in the reaction chamber (1). In the presence of the catalyst sulfur dioxide reacts to form sulfur trioxide. In further parts of the installation the resulting sulfur trioxide is converted to sulfuric acid. According to the invention, an oxidizing gas flow (6) is supplied to the reaction chamber (1) alternately with the product gas flow (5).

摘要翻译： 本发明涉及生产硫酸的方法和装置。 首先，产生含有二氧化硫的产物气流（5）。 将产物气流（5）供应到反应室（1）。 催化剂（3）位于反应室（1）中。 在催化剂存在下，二氧化硫反应形成三氧化硫。 在安装的另外部分中，将所得三氧化硫转化为硫酸。 根据本发明，与产物气流（5）交替地向反应室（1）供给氧化气体流（6）。

公开(公告)号：US20120087856A1

公开(公告)日：2012-04-12

申请号：US13251754

申请日：2011-10-03

申请人： Dieter KITA ,  Yongquan LI ,  Jeffrey SOCHA ,  Bryan A. MARCOTTE

发明人： Dieter KITA ,  Yongquan LI ,  Jeffrey SOCHA ,  Bryan A. MARCOTTE

IPC分类号： C01B17/76 ,  C01B17/80

CPC分类号： G01N33/0006 ,  C01B17/76 ,  C01B17/80 ,  G01N33/0042 ,  G01N2001/2893

摘要： Configurations herein include a novel process and apparatus for generating and maintaining sulfur trioxide gas. The generation system and process operate to provide sulfur trioxide calibration gas for calibrating sulfur trioxide detection devices. The system and process provides a known, concentration of sulfur trioxide gas via a heated catalyst, which enables accurate calibration of measurement equipment. The system functions in part by controlling temperature, amount of moisture, residence time, catalyst selection, diluting generated sulfur trioxide and by locating the sulfur trioxide generator at a point of injection of a sulfur trioxide detection system.

摘要翻译： 本文中的配置包括用于产生和维持三氧化硫气体的新颖方法和装置。 发电系统和工艺操作提供三氧化硫校准气体，用于校准三氧化硫检测装置。 该系统和方法通过加热的催化剂提供已知的浓度的三氧化硫气体，这使得能够精确地校准测量设备。 该系统部分地通过控制温度，水分量，停留时间，催化剂选择，稀释产生的三氧化硫以及通过将三氧化硫发生器定位在三氧化硫检测系统的注入点来起作用。

公开(公告)号：US20080216478A1

公开(公告)日：2008-09-11

申请号：US11682631

申请日：2007-03-06

申请人： Robert S. Cherry

发明人： Robert S. Cherry

IPC分类号： C01B17/80 ,  C01B17/69 ,  C01B21/28 ,  C01B21/38

CPC分类号： C01B21/38

摘要： Methods and apparatus for the integration of a water splitting process with the production of fertilizer precursors such as ammonia, nitric acid, and sulfuric acid are provided. At least one of heat and electricity from a power plant are used to split water into hydrogen gas and oxygen gas. Nitrogen gas is provided by air separation. The hydrogen gas and nitrogen gas are used to produce ammonia. The ammonia and oxygen gas are used to produce nitric acid. The oxygen gas, water, and sulfur are used to produce sulfuric acid. Further disclosed is an apparatus for the production of nitric acid comprising a power plant and an apparatus for the production of nitric acid. Also disclosed is an apparatus for the production of sulfuric acid comprising a power plant and an apparatus for the production of sulfuric acid.

摘要翻译： 提供了将水分离过程与生产诸如氨，硝酸和硫酸的肥料前体整合的方法和装置。 来自发电厂的热和电中至少有一个用于将水分解成氢气和氧气。 通过空气分离提供氮气。 氢气和氮气用于生产氨。 氨和氧气用于生产硝酸。 使用氧气，水和硫来生产硫酸。 还公开了一种用于生产硝酸的设备，其包括发电厂和用于生产硝酸的设备。 还公开了一种用于生产硫酸的设备，其包括发电厂和用于生产硫酸的设备。