公开(公告)号：US20140086812A1

公开(公告)日：2014-03-27

申请号：US14039676

申请日：2013-09-27

Applicant: Strom W. Smith

Inventor： Strom W. Smith

IPC: B01D53/52

CPC classification number: B01D53/52 ,  B01D53/8612 ,  C01B17/0404 ,  C01B17/0426 ,  C01B17/0452 ,  Y10S423/05

Abstract: A process for removing sulfur compounds, particularly hydrogen sulfide, from a waste gas wherein sulfur dioxide is introduced into the process gas at multiple process locations. Quantities of sulfur dioxide are introduced into the process gas stream at one or more locations preceding catalytic reaction. The process of the present invention may be practiced for Claus processes involving initial thermal reactions, and may be practiced without necessity of preliminary thermal reaction. In an embodiment of the invention, one of the injection locations of sulfur dioxide is the thermal reactor.

Abstract translation: 从废气中除去硫化合物，特别是硫化氢的方法，其中在多个处理位置将二氧化硫引入工艺气体中。 在催化反应之前的一个或多个位置将二氧化硫的量引入工艺气流中。 本发明的方法可以用于涉及初始热反应的Claus方法，并且可以在不需要预热反应的情况下实施。 在本发明的一个实施方案中，二氧化硫的注入位置之一是热反应器。

公开(公告)号：US08527071B2

公开(公告)日：2013-09-03

申请号：US13049697

申请日：2011-03-16

Applicant: Igor Boiko

Inventor： Igor Boiko

IPC: G05B13/02 ,  C01B17/02

CPC classification number: B01J19/0033 ,  B01J2219/00186 ,  B01J2219/00198 ,  B01J2219/00202 ,  B01J2219/00218 ,  B01J2219/00231 ,  C01B17/0452 ,  G01N33/0042 ,  Y02A50/248

Abstract: Control of a process for producing free sulfur from hydrogen sulfide is accomplished by manipulating the flow rate of a feed stream containing oxygen to a furnace in such a manner that a desired proportion of the hydrogen sulfide fed to the furnace is converted to sulfur dioxide. Combustion of hydrogen sulfide is precisely controlled by the proposed system to maintain the hydrogen sulfide and sulfur dioxide concentrations in the tail gas at acceptable levels to minimize the environmental pollution.

Abstract translation: 从硫化氢生产游离硫的方法的控制是通过将加入到炉中的含氧气的进料流的流量以使所供给炉中所需比例的硫化氢转化为二氧化硫的方式来实现的。 硫化氢的燃烧由所提出的系统精确控制，以将尾气中的硫化氢和二氧化硫浓度维持在可接受的水平，以最小化环境污染。

公开(公告)号：US07780942B2

公开(公告)日：2010-08-24

申请号：US12279297

申请日：2007-02-19

Applicant: Pierre Kaplan

Inventor： Pierre Kaplan

IPC: C01B17/04 ,  G05D23/00

CPC classification number: C01B17/0452 ,  Y10S423/06

Abstract: A catalytic method for treating an H2S/SO2 mixture for producing liquid sulphur including the following steps: a) at least one step of heating the mixture containing H2S/SO2 to a temperature Tc; b) at least one step of catalytically reacting the heated mixture obtained in a) in the presence of at least one catalyst and at least one step of recovering the exiting mixture containing gaseous sulphur; and c) at least one step of converting the gaseous sulphur contained in the exiting mixture obtained at step b) into liquid sulphur, wherein between step b) and step c), the temperature Ts of said exiting mixture and the dew point Tr of the gaseous sulphur contained in said exiting mixture are measured and in that the heating temperature Tc of step a) is adjusted so that the temperature Ts is 5° C. to 30° C. above the dew point Tr.

Abstract translation: 一种用于处理H2S / SO2混合物以产生液态硫的催化方法，包括以下步骤：a）至少一个步骤，将含有H 2 S / SO 2的混合物加热至温度Tc; b）至少一个步骤，在至少一种催化剂和至少一个回收含有气态硫的混合物的混合物的存在下，使a）中得到的加热混合物催化反应; 和c）将在步骤b）中获得的出口混合物中包含的气态硫转化成液态硫的至少一个步骤，其中在步骤b）和步骤c）之间，所述离开混合物的温度Ts和 测量所述离开的混合物中含有的气态硫，并且调节步骤a）的加热温度Tc，使得温度Ts在露点Tr以上5℃至30℃。

公开(公告)号：US20090226363A1

公开(公告)日：2009-09-10

申请号：US12279297

申请日：2007-02-19

Applicant: Pierre Kaplan

Inventor： Pierre Kaplan

IPC: C01B17/04

CPC classification number: C01B17/0452 ,  Y10S423/06

Abstract: The invention relates to a catalytic method for treating an H2S/SO2 mixture for producing liquid sulphur, said method comprising the following steps: a) at least one step of heating the mixture containing SO2 and H2S to a temperature Tc; b) at least one step of catalytically reacting the heated mixture obtained in a) in the presence of at least one catalyst and at least one step of recovering the exiting mixture containing gaseous sulphur; and c) at least one step of converting the gaseous sulphur contained in the exiting mixture obtained at step b) into liquid sulphur, said method being characterized in that, between step b) and step c), the temperature Ts of said exiting mixture and the dew point Tr of the gaseous sulphur contained in said exiting mixture are measured and in that the heating temperature Tc of step a) is adjusted so that the temperature Ts is 5° C. to 30° C. above the dew point Tr.

Abstract translation: 本发明涉及一种用于处理H2S / SO2混合物以制备液体硫的催化方法，所述方法包括以下步骤：a）至少一个步骤，将含有SO 2和H 2 S的混合物加热至温度Tc; b）至少一个步骤，在至少一种催化剂和至少一个回收含有气态硫的混合物的混合物的存在下，使a）中得到的加热混合物催化反应; 和c）将步骤b）中获得的离开混合物中所含的气态硫转化成液体硫的至少一个步骤，所述方法的特征在于在步骤b）和步骤c）之间，将所述离开的混合物的温度Ts和 测量所述离开的混合物中所含的气态硫的露点Tr，并且调节步骤a）的加热温度Tc，使得温度Ts在露点Tr以上5℃至30℃。

公开(公告)号：US20090092524A1

公开(公告)日：2009-04-09

申请号：US11911707

申请日：2006-04-20

Applicant: Ravi Ravikumar ,  Gordon Sims ,  Harold Sandler

Inventor： Ravi Ravikumar ,  Gordon Sims ,  Harold Sandler

IPC: B01D53/14 ,  B01D53/75 ,  C01B17/04

CPC classification number: B01D53/1462 ,  C01B17/0408 ,  C01B17/0452 ,  Y02P20/152

Abstract: Contemplated plants include an acid gas enrichment unit in which acid gas unsuitable for feeding into a Claus plant from an upstream acid gas removal unit is separated into a concentrated hydrogen sulfide stream that is fed to the Claus plant and a carbon dioxide stream that is compressed in a compressor before sequestration, further purification, and/or recycling to a gasification unit.

Abstract translation: 考虑的植物包括酸性气体富集单元，其中不适合从上游酸性气体去除单元进入克劳斯植物的酸性气体被分离成供给到克劳斯植物的浓缩的硫化氢物流和被压缩的二氧化碳流 在气化单元进行封存，进一步纯化和/或再循环之前的压缩机。

公开(公告)号：US20060014292A1

公开(公告)日：2006-01-19

申请号：US10890458

申请日：2004-07-13

Applicant: Paul d'Haene ,  Peter Schermann

Inventor： Paul d'Haene ,  Peter Schermann

IPC: C01B17/02

CPC classification number: B01D53/8612 ,  C01B17/0413 ,  C01B17/0452 ,  Y10T436/12

Abstract: In a process and system for recovering sulfur from a process gas stream initially comprising a hydrogen sulfide containing gas and an oxygen containing gas, a control process and system respectively are provided. The sulfur recovery process includes a thermal step having a beginning followed by a catalytic step having an end. The control process includes first analyzing a composition of the process gas stream at a first location between the beginning of the thermal step and the end of the catalytic step, first controlling the oxygen containing gas having regard to that first composition, second analyzing the composition of the process gas stream at a second location downstream of the end of the catalytic step, and second controlling the oxygen containing gas having regard to that second composition. The sulfur recovery system and control system therefor are provided for performing the steps of the sulfur recovery process and control process respectively.

公开(公告)号：US3904370A

公开(公告)日：1975-09-09

申请号：US49670574

申请日：1974-08-12

Applicant: ITT

Inventor： ROBISON JAMES RAY

IPC: C01B17/04 ,  G05D21/02 ,  G01N31/16

CPC classification number: C01B17/0452 ,  G05D21/02 ,  Y10T436/184 ,  Y10T436/186

Abstract: An improved Claus process control system utilizing first and second coulometric titrators for automatically controlling the amount of oxygen used in burning a portion of the hydrogen sulfide (H2S) in flue gases. The first and second titrators are fed sulfur dioxide (SO2) scrubbed and unscrubbed samples, respectively, of the flue gases downstream of the oxygen injection point. The first and second titrators produce H2S and H2S + SO2 analog output signals, respectively, which are used to control the rate of flow of oxygen or air injected in a manner such that the samples of the flue gases contain H2S in a concentration which is approximately or exactly equal to twice the concentration of the SO2 therein.

Abstract translation: 改进的Claus过程控制系统利用第一和第二库仑滴定仪来自动控制燃烧烟道气中硫化氢（H2S）中一部分的氧气的量。 第一和第二滴定仪分别供给氧气注入点下游的烟道气的二氧化硫（SO2）洗涤和未研磨样品。 第一和第二滴定仪分别产生H2S和H2S + SO2模拟输出信号，其用于以这样的方式控制氧气或空气的流入速率，使得烟道气样品含有浓度近似的H 2 S 或者恰好等于其中SO 2浓度的两倍。

公开(公告)号：US3871831A

公开(公告)日：1975-03-18

申请号：US39147873

申请日：1973-08-24

Applicant: AQUITAINE TOTAL ORGANICO

Inventor： ANDRAL GUILLAUME ,  CARMASSI MICHEL ,  LOUVEL BERNARD ,  MAURICE JACQUES ,  VANDESANDE GEORGES

IPC: C01B17/04 ,  G01N7/00 ,  C01B17/16

CPC classification number: C01B17/0452 ,  Y10T436/12

Abstract: A process for automated regulation of a unit producing sulphur by oxidation of hydrogen sulphide, in which the flow of gas carrying oxygen into the unit is regulated so as to keep an operating parameter, based on measurement of the sulphurous compound of the residual gases, level with a reference value. It is characterized by the fact that the control signal, used to regulate the flow of gas containing oxygen at the unit inlet, is a combination of a signal based on measurements taken at the inlet, and representing the theoretical flow of this gas needed to keep the operating parameter at its reference level and another signal representing the correction needed in this flow to adjust the instantaneous value of the parameter to the reference level. This process allow better control of the sulphur unit, with increased efficiency and reduced atmospheric pollution. This is a division, of application Ser. No. 207,790 filed Dec. 14, 1971 and now abandoned.

Abstract translation: 通过氧化硫化氢自动调节生产硫的单元的方法，其中基于残留气体的硫化合物的测量来调节将氧气输送到单元中的气体流以保持操作参数，水平 具有参考值。

公开(公告)号：US3854884A

公开(公告)日：1974-12-17

申请号：US40637973

申请日：1973-10-15

Applicant: ITT

Inventor： ROBISON J

IPC: B01D53/50 ,  B01D53/52 ,  B01J19/00 ,  C01B17/04 ,  G05D21/02 ,  G01N33/16

CPC classification number: C01B17/0452 ,  G05D21/02

Abstract: An improved Claus process control system utilizing first and second coulometric titrators for automatically controlling the amount of oxygen used in burning a portion of the hydrogen sulfide (H2S) in flue gases. The first and second titrators are fed sulfur dioxide (SO2) scrubbed and unscrubbed samples, respectively, of the flue gases downstream of the oxygen injection point. The first and second titrators produce H2S and H2S + SO2 analog output signals, respectively, which are used to control the rate of flow of oxygen or air injected in a manner such that the samples of the flue gases contain H2S in a concentration which is approximately or exactly equal to twice the concentration of the SO2 therein.

Abstract translation: 改进的Claus过程控制系统利用第一和第二库仑滴定仪来自动控制燃烧烟道气中硫化氢（H2S）中一部分的氧气的量。 第一和第二滴定仪分别供给氧气注入点下游的烟道气的二氧化硫（SO2）洗涤和未研磨样品。 第一和第二滴定仪分别产生H2S和H2S + SO2模拟输出信号，其用于以这样的方式控制氧气或空气的流入速率，使得烟道气样品含有浓度近似的H 2 S 或者恰好等于其中SO 2浓度的两倍。

公开(公告)号：US3854876A

公开(公告)日：1974-12-17

申请号：US27824172

申请日：1972-08-07

Applicant: WESTERN RES & DEV LTD

Inventor： RANKINE R ,  EARL D ,  MELLOR R

IPC: B01J19/00 ,  C01B17/04 ,  G05D21/02 ,  G01N21/34 ,  G01N31/12

CPC classification number: C01B17/0452 ,  B01J19/0006 ,  G05D21/02 ,  Y02P20/129 ,  Y10T436/186 ,  Y10T436/204998

Abstract: A sample of the tail gas from a Claus plant is continuously taken, oxidized to convert all C and S atoms to CO2 and SO2 respectively, analyzed for these compounds, and the ratio of CO2/SO2 (which is numerically equal to the C/S ratio) is determined. The C/S ratio is a measure of the relative flow rates in the tail gas of these two atomic species. Any controllable variable in the plant process can then be optimized by altering it to maximize this ratio.

Abstract translation: 连续取出来自克劳斯植物的尾气样品，进行氧化，分别将所有C和S原子转化为CO 2和SO 2，分析这些化合物，并且CO 2 / SO 2的比例（其数值等于C / S 比率）。 C / S比率是这两种原子物种尾气中相对流速的量度。 然后可以通过改变植物过程中的任何可控变量来最大化该比例。