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1. 发明授权

US07824638B2 Process for catalytic tail gas incineration 有权
标题翻译：催化尾气焚烧方法
公开(公告)号：US07824638B2
公开(公告)日：2010-11-02
申请号：US12398167
申请日：2009-03-04
申请人： Mahin Rameshni , Stephen Santo
发明人： Mahin Rameshni , Stephen Santo
IPC分类号： C01B17/16 , C01B17/50
CPC分类号： B01D53/8615 , C01B17/0456 , C01B17/0491 , C01B17/164 , C01B17/508
摘要： This disclosure relates generally to processes for efficient incineration and conversion of the tail gas streams from sulfur recovery units containing sulfur compounds such as H2S, CO2, COS, CS2, and other sulfur species and sulfur vapors from S1 to S8 to SO2. The present disclosure describes the use of a combination of catalysts to achieve efficient oxidation of all reduced sulfur compounds as well as oxidation of CO and H2 to meet the industry emission requirements. The catalytic tail gas incineration process described herein can advantageously operate at lower temperatures, which in turn can represent a savings in reduced fuel gas costs.
摘要翻译：本公开总体上涉及有效焚烧和转化来自含硫化合物例如H 2 S，CO 2，COS，CS 2和其它硫物质的硫回收单元的尾气流从S1转移到S8至SO2的方法。本公开描述了使用催化剂的组合来实现所有还原的硫化合物的有效氧化以及CO和H 2的氧化以满足工业排放要求。本文所述的催化尾气焚烧方法可以有利地在较低的温度下运行，这反过来又可以节省降低的燃料气体成本。

2. 发明授权

US10752502B2 “ENRICH-SMAX”—integrated H2S removal, separation of impurities and partial acid gas enrichment in sour gas processing 有权
公开(公告)号：US10752502B2
公开(公告)日：2020-08-25
申请号：US16052610
申请日：2018-08-02
申请人： Stephen L Santo , Mahin Rameshni
发明人： Stephen L Santo , Mahin Rameshni
IPC分类号： C01B17/04 , B01D53/14
摘要： This disclosure relates generally to processes sour gas treating for H2S Removal, separation of impurities such as hydrocarbons, BTEX and mercaptans and the Partial Acid Gas Enrichment integrated system from the sour gas field developments, or any application. The combination of innovation schemes comprises one or more absorbers, primary and secondary regenerators. The secondary regenerator functions are, enriching the H2S stream further and to separate the hydrocarbons, mercaptans and BTEX where an additional acid gas enrichment and hydrocarbons removal could be eliminated. Then there is a unique sulfur recovery and tail gas treating with a unique 2-zone reaction furnace, tail gas absorber which operated as partial acid gas enrichment by receiving split acid gas from the SRU and the hydrolysis reactor to hydrolyze sulfur compounds.The acid gas from the primary and the secondary amine regeneration and the acid gas recycle from the tail gas which is preheated and these streams flow to the 2-zones reaction furnace in the sulfur recovery unit to establish a stable low emission and higher recovery.

3. 发明授权

US08425874B2 Process for the production of sulfur from sulfur dioxide with tail gas recycle 有权
标题翻译：从尾气回收二氧化硫生产硫的方法
公开(公告)号：US08425874B2
公开(公告)日：2013-04-23
申请号：US13153422
申请日：2011-06-04
申请人： Mahin Rameshni , Stephen L Santo
发明人： Mahin Rameshni , Stephen L Santo
IPC分类号： C01B17/04
CPC分类号： C01B17/0404 , B01D2257/302 , C01B17/0456 , C01B17/0478 , C01B17/161
摘要： The reduction of the gas stream containing sulfur dioxide to elemental sulfur is carried out by reacting a reducing gas, such as natural gas, methanol or a mixture of hydrogen and carbon monoxide, with recycled sulfur and recycled tail gas to produce a stream containing hydrogen sulfide that may be reacted with the gas stream that contains sulfur dioxide. Gas streams with a molar concentration of sulfur dioxide from 1 to 100% may be processed to achieve nearly 100% sulfur recovery efficiency.
摘要翻译：将含二氧化硫的气流还原成元素硫是通过还原性气体如天然气，甲醇或氢和一氧化碳的混合物与再循环的硫和循环的尾气反应生成含有硫化氢的物流其可以与含有二氧化硫的气流反应。可以加工摩尔浓度为1至100％的二氧化硫的气流，以达到接近100％的硫回收效率。

4. 发明申请

US20180065851A1 SETR- SUPER ENHANCED TAIL GAS RECOVERY; A TAIL GAS PROCESS WITH ADSORBENT REACTORS FOR ZERO EMISSIONS 审中-公开
公开(公告)号：US20180065851A1
公开(公告)日：2018-03-08
申请号：US15256539
申请日：2016-09-03
申请人： Mahin Rameshni , Stephen L. Santo
发明人： Mahin Rameshni , Stephen L. Santo
IPC分类号： C01B17/04 , B01D53/04 , B01D53/86 , B01D53/75
CPC分类号： C01B17/0456 , B01D53/0462 , B01D53/75 , B01D53/8609 , B01D2253/1122 , B01D2255/20707 , B01D2255/2092 , B01D2255/40 , B01D2257/302 , B01D2259/40003
摘要： SETR tail gas treating process refers to an innovative process consist of the adsorbent and regeneration reactors. The SETR reactor stands for Super Enhanced Tail gas Recovery switching between adsorption and regeneration mode and the STER reactors are located after the tail gas incineration before the stack replacing any type of the caustic scrubber system. The SETR innovative process is not a sub dew point process where the bed become saturated with sulfur, instead, the SETR process are fixed bed reactors that requires heat up and cool down for the SO2 adsorption-based Claus tail gas process. The adsorption mode operates at cold temperature to adsorb the SO2. The regenerator mode operates at hot temperature to regenerate the SO2 by adding a slip stream of the H2S and air from the SRU to the SETR reactor that contains adsorbed SO2 to promote the Claus reaction. In the SETR reactors H2S to react with the adsorbed SO2 in the bed with oxygen the outlet of the hot reactor is recycled to the SRU thermal or catalytic section. The gas stream from the adsorbed cold reactor flows to the stack and it is SO2 free and zero emission is achieved.

5. 发明申请

US20170088421A1 SUPERDEGAS- A PROCESS OF INTEGRATING SULFUR COLLECTION AND DEGASSING FOR ZERO EMISSION 审中-公开
公开(公告)号：US20170088421A1
公开(公告)日：2017-03-30
申请号：US14870017
申请日：2015-09-30
申请人： MAHIN RAMESHNI , STEPHEN L. SANTO
发明人： MAHIN RAMESHNI , STEPHEN L. SANTO
IPC分类号： C01B17/04 , B01J31/02 , B01D19/00
CPC分类号： C01B17/0447 , B01D19/0042 , B01D19/0073 , B01J31/0271 , B01J2231/62 , B01J2531/002 , C01B17/0426
摘要： SuperDegas process refers to innovative process of the liquid sulfur collection and degassing which takes place in the underground container in a concrete pit or a carbon steel vessel located in the concrete pit. SuperDegas process consists of at least three compartments: (1) sulfur collection to agitate and create turbulent, higher velocity, and higher pressure in the liquid sulfur for more effective degassing by using vertical pumps; (2) consists of the proprietary air spargers and Morpholine catalyst for degassing. Morpholine catalyst degas the liquid sulfur 30 times faster than Quinoline or any other solvent with sparging air and within 1 hour residence time from 16-30 hours and to meet less than 10 ppmw of H2S in liquid sulfur. (3) The last compartment receives the degassed sulfur by overflow and transport through a pump or pumps to other facilities. An eductor will sweep vapor phase containing H2S, vaporized Morpholine with air where the pit vent can be sent to incineration or the reaction furnace. The tail gas stream from SRU can sweep the pit and the discharge shall be recycled to the tail gas unit, which ultimately zero emission can be achieved.

6. 发明授权

US08465722B2 Thermal reduction of sulfur dioxide to sulfur with temperature controlled furnace 有权
标题翻译：用温度控制炉将二氧化硫热还原成硫
公开(公告)号：US08465722B2
公开(公告)日：2013-06-18
申请号：US13164729
申请日：2011-06-20
申请人： Mahin Rameshni , Stephen L. Santo
发明人： Mahin Rameshni , Stephen L. Santo
IPC分类号： C01B17/02 , C01B17/04
CPC分类号： C01B17/0404 , C01B3/36 , C01B17/0408 , C01B17/0421 , C01B17/0478 , C01B17/164 , C01B2203/025 , C01B2203/045 , C01B2203/0485 , Y02P20/129
摘要： Processes for the thermal reduction of sulfur dioxide to elemental sulfur are disclosed. The processes described include three general reaction sections, including the reaction furnace portion where the SO2-containing stream is combusted, the second reaction zone where the temperature is moderated to encourage the reaction of sulfur with hydrogen to consume the hydrogen carbon monoxide and produce the H2S and CO. The temperature moderation is achieved by one or combinations of three different methods adding external waste heat boiler, followed by a vessel to provide adequate residence time for the reaction of producing H2S or to recycle the tail gas to a second zone of a 2-zone reaction furnace, using inter-stage internal cooling coil or adding a quench fluid in the second zone of a 2-zone reaction furnace. The third reaction zone is a Claus conversion portion, wherein residual H2S and SO2 are further reacted to produce additional elemental sulfur.
摘要翻译：公开了将二氧化硫热还原成元素硫的方法。所描述的方法包括三个一般的反应段，包括其中含SO 2的物流燃烧的反应炉部分，温度被调节的第二反应区，以促进硫与氢的反应以消耗氢一氧化碳并产生H 2 S 和CO。通过添加外部余热锅炉的三种不同方法的一种或组合来实现温度调节，随后是容器以产生用于产生H 2 S的反应的足够的停留时间或将尾气再循环到第二区域2 - 区反应炉，使用阶段内冷却盘管或在2-区反应炉的第二区中加入骤冷流体。第三反应区是克劳斯转化部分，其中残余的H 2 S和SO 2进一步反应以产生另外的元素硫。

7. 发明授权

US08377402B2 Ammonia destruction methods for use in a claus tail gas treating unit 有权
标题翻译：用于泥浆尾气处理单元的氨破坏方法
公开(公告)号：US08377402B2
公开(公告)日：2013-02-19
申请号：US12098080
申请日：2008-04-04
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： B01D53/34 , C01C1/00 , C01B17/00
CPC分类号： B01D53/96 , B01D53/52 , B01D53/58 , B01D53/75 , B01D53/8634 , B01D2257/304 , B01D2257/406 , B01D2257/408 , C01B17/0421 , C01B17/0456 , C01C1/12 , Y02E60/364 , Y02P20/129
摘要： Oxidative and reductive methods are described for the cost-effective destruction of an ammonia-bearing gas stream, potentially containing minor but significant quantities of hydrogen sulfide (H2S), in a conventional Claus sulfur recovery tail gas treating unit, using controlled rates and compositions of combustion gases in order to obtain the temperatures necessary for the desired destruction of unwanted combustibles. In accordance with the present disclosure, a reductive method for the destruction of ammonia in a Claus tail gas treating unit is described, wherein the method includes introducing an ammonia-containing gas stream into a first combustion zone of a reactor in combination with a first oxygen-containing air stream to generate a first combustion gas stream composition; introducing a hydrocarbon-containing fuel gas stream and a second oxygen-containing air stream into a second combustion zone of the reactor to generate a second combustion gas stream composition; combining the first and second combustion gas stream compositions in a waste heat boiler to generate a waste effluent gas; contacting the waste effluent gas with a Claus tail gas stream to produce a primary waste stream; and contacting the primary waste stream with a hydrogenation catalyst system for a period of time sufficient to reduce NOx in the primary waste stream to ammonia.
摘要翻译：描述了氧化和还原方法，以便在传统的克劳斯硫磺回收尾气处理单元中，以可控的速率和组成为代价，有效地破坏含氨气体气流，潜在地含有少量但显着量的硫化氢（H2S）燃烧气体，以获得所需的破坏不想要的可燃物所需的温度。根据本公开，描述了克劳斯尾气处理单元中氨的破坏还原方法，其中所述方法包括将含氨气流引入反应器的第一燃烧区域并与第一氧气的气流以产生第一燃烧气流组合物; 将含烃燃料气流和第二含氧空气流引入所述反应器的第二燃烧区以产生第二燃烧气流组合物; 将第一和第二燃烧气流组合物组合在废热锅炉中以产生废流出气体; 使废气排放气体与克劳斯尾气流接触以产生主废气流; 并且使一级废物流与氢化催化剂体系接触足以将一次废物流中的NOx还原成氨的时间。

8. 发明申请

US20080247927A1 Ammonia Destruction Methods for Use in a Claus Tail Gas Treating Unit 有权
标题翻译：用于克劳斯尾气处理装置的氨破坏方法
公开(公告)号：US20080247927A1
公开(公告)日：2008-10-09
申请号：US12098080
申请日：2008-04-04
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： B01D53/58
CPC分类号： B01D53/96 , B01D53/52 , B01D53/58 , B01D53/75 , B01D53/8634 , B01D2257/304 , B01D2257/406 , B01D2257/408 , C01B17/0421 , C01B17/0456 , C01C1/12 , Y02E60/364 , Y02P20/129
摘要： Oxidative and reductive methods are described for the cost-effective destruction of an ammonia-bearing gas stream, potentially containing minor but significant quantities of hydrogen sulfide (H2S), in a conventional Claus sulfur recovery tail gas treating unit, using controlled rates and compositions of combustion gases in order to obtain the temperatures necessary for the desired destruction of unwanted combustibles. In accordance with the present disclosure, a reductive method for the destruction of ammonia in a Claus tail gas treating unit is described, wherein the method includes introducing an ammonia-containing gas stream into a first combustion zone of a reactor in combination with a first oxygen-containing air stream to generate a first combustion gas stream composition; introducing a hydrocarbon-containing fuel gas stream and a second oxygen-containing air stream into a second combustion zone of the reactor to generate a second combustion gas stream composition; combining the first and second combustion gas stream compositions in a waste heat boiler to generate a waste effluent gas; contacting the waste effluent gas with a Claus tail gas stream to produce a primary waste stream; and contacting the primary waste stream with a hydrogenation catalyst system for a period of time sufficient to reduce NOx in the primary waste stream to ammonia.
摘要翻译：描述了在常规克劳斯硫回收尾气中成本有效地破坏含氨气体气流的潜在含有少量但显着量的硫化氢（H 2 S 2 S）的氧化和还原方法处理单元，使用控制的燃烧气体的速率和组成，以获得期望的不想要的可燃物的破坏所需的温度。根据本公开，描述了克劳斯尾气处理单元中氨的破坏还原方法，其中所述方法包括将含氨气流引入反应器的第一燃烧区域并与第一氧气的气流以产生第一燃烧气流组合物; 将含烃燃料气流和第二含氧空气流引入所述反应器的第二燃烧区以产生第二燃烧气流组合物; 将第一和第二燃烧气流组合物组合在废热锅炉中以产生废流出气体; 使废气排放气体与克劳斯尾气流接触以产生主废气流; 并使一次废料流与氢化催化剂体系接触足以将初级废物流中的NO x降低至氨的时间。

9. 发明申请

US20060288919A1 Process for the production of sulfur from sulfur dioxide 失效
公开(公告)号：US20060288919A1
公开(公告)日：2006-12-28
申请号：US11451891
申请日：2006-06-13
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： F23J15/00
CPC分类号： C01B17/0473 , C01B17/0404 , C01B17/0478 , F23J15/003 , F23J15/02 , F23J15/08 , F23J2215/20 , F23J2219/10 , Y02P20/129
摘要： The reduction of gas streams containing sulfur dioxide to elemental sulfur is carried out by contacting a reducing gas, such as natural gas, methanol or a mixture of hydrogen and carbon monoxide, with recycled sulfur to produce a stream containing hydrogen sulfide that may be reacted with the gas stream that contains sulfur dioxide. Gas streams with a molar concentration of sulfur dioxide from 1 to 100% may be processed to achieve nearly 100% sulfur recovery efficiency.

10. 发明公开

US20230339753A1 INTEGRATED SULFUR RECOVERY AND HYDROGEN PRODUCTION PROCESS 审中-公开
公开(公告)号：US20230339753A1
公开(公告)日：2023-10-26
申请号：US17726328
申请日：2022-04-21
申请人： Mahin Rameshni , Stephen L. Santo
发明人： Mahin Rameshni , Stephen L. Santo
IPC分类号： C01B17/78 , C01B3/32 , C01B17/88 , C01B17/60 , B01J27/08 , B01J38/00
CPC分类号： C01B17/78 , C01B3/326 , C01B17/88 , C01B17/60 , B01J27/08 , B01J38/00 , C01B2203/0227
摘要： H2 production, sulfuric acid and SO2 production process refers to an innovative process VIA the phenomena of the Sulfur-Iodine (S-I) thermochemical cycle. The process consist of the acid gas burner to burn all the acid gases with air, enriched air or oxygen and without using any fuel gas to produce SO2. The acid gases are normally processed in the prior arts of the sulfur recovery units. Iodine is used to produce the hydrogen.
A portion or all of the acid gases are sent to the acid gas burner in accordance with the present invention.
The present innovation not only produces hydrogen but also reduces the SO2 and CO2 emissions.
The produced SO2 is sent to other units to produce other fertilizer products and the produced CO2 is sent to CO2 removal or CO2 Liquefaction process.
The hydrogen is produced is used to supply the needs within the facility like hydrotreaters to reduce external import and to reduce the operating costs.

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