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1. 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.

2. 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.

3. 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。

4. 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.

5. 发明授权

US09624106B2 Supersulf-a process with internal cooling and heating reactors in subdewpoint sulfur recovery and tail gas treating systems 有权
公开(公告)号：US09624106B2
公开(公告)日：2017-04-18
申请号：US14826198
申请日：2015-08-14
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： C01B17/0456 , B01D53/1468 , B01D53/1481 , B01D2252/204 , C01B17/164
摘要： SuperSulf process refers to an innovative reactor design consisting of internal cooling and heating thermoplate exchangers where it is filled by the Claus type catalysts between plates in the SRU and hydrogenation catalysts in the tail gas unit. SuperSulf reactor consists of 3 reactor zones in the sulfur recovery which operates as a SubDewPoint process where the mode of operation are controlled by switching valves on the utilities streams high pressure steam and high quality water and steam where the first 2 zones operate as hot and cold and switches to cold and hot where the produced sulfur is condensed. The third zone operates as cold all the time where consists of the last sulfur condenser by producing Low pressure steam. The tail gas unit consists of 2 reactor zones of hydrogenation reactor and hydrolysis reactor with internal plate cooling then followed by the tail gas amine with a selective solvent. The thermal incineration system can meet less than 50 ppmv of SO2 and with caustic incineration less than 10 ppmv of SO2 resulting zero emission.

6. 发明授权

US09617154B1 Superdegas—a process of integrating sulfur collection and degassing for zero emission 有权
公开(公告)号：US09617154B1
公开(公告)日：2017-04-11
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： C01B17/02 , C01B17/04 , B01D19/00 , B01J31/02
CPC分类号： C01B17/0447 , B01D19/0042 , B01D19/0073 , B01J31/0271 , B01J2231/62 , B01J2531/002 , C01B17/0426
摘要： A process is provided for liquid sulfur degasification in an underground container, comprising: collecting liquid sulfur which contains polysulfides and hydrogen sulfide in a first compartment of the underground container; agitating and creating turbulence in the liquid sulfur in the first compartment of the underground container; transferring the liquid sulfur into a second compartment of the underground container; injecting gas into the liquid sulfur into the second compartment of the underground container via gas spargers, and also injecting morpholine catalyst into the liquid sulfur in the second compartment of the underground container to produce a degassed liquid sulfur; and transferring the degassed liquid sulfur into a third compartment of the underground container for storage and subsequent removal.

7. 发明授权

US09023309B1 Process of conversion sulfur compounds to elemental sulfur by using direct reduction and oxidation catalysts in Claus units 有权
标题翻译：通过使用克劳斯单元中的直接还原和氧化催化剂将硫化合物转化为元素硫的方法
公开(公告)号：US09023309B1
公开(公告)日：2015-05-05
申请号：US14276317
申请日：2014-05-13
申请人： Mahin Rameshni , Stephen L. Santo
发明人： Mahin Rameshni , Stephen L. Santo
IPC分类号： C01B17/04 , C07C7/148
CPC分类号： C01B17/0404 , C01B17/0421 , C01B17/0434 , C01B17/046 , C01B17/0491 , Y02E20/16 , Y02E20/18
摘要： Processes are for the conversion of the sulfur compounds to elemental sulfur through different catalytic stages after the reaction furnace of the Claus unit with air or oxygen. The steps are: 1—Conventional Claus thermal or catalytic stage; 2—Oxygen Scavenger catalytic stage to capture excess oxygen from the reaction furnace and to perform Claus reaction; a Selective Reduction stage that converts SO2 to elemental sulfur; and 4—Selective Oxidation stage that converts H2S to elemental sulfur. The tail gas flows to the incineration and stack and to the incineration plus caustic scrubber for achieving zero emissions.
摘要翻译：方法是在克劳斯单元的反应炉内用空气或氧气将硫化合物转化为不同催化阶段的硫化合物。步骤是：1-常规克劳斯热或催化阶段; 2-氧清除剂催化级，从反应炉中捕获过量的氧并进行克劳斯反应; 选择性还原阶段，将SO2转化为元素硫; 和4选择氧化阶段，将H2S转化为元素硫。尾气流入焚化炉和焚烧加碱洗涤器以实现零排放。

8. 发明授权

US08440160B1 Integrated sulfur recovery methods in power plants and low BTU gas fields 有权
标题翻译：发电厂综合硫回收方法和低BTU气田
公开(公告)号：US08440160B1
公开(公告)日：2013-05-14
申请号：US13345435
申请日：2012-01-06
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： F01K23/067 , C01B17/0404 , C01B17/0426 , C01B17/60 , Y02E20/16 , Y02E20/18 , Y02P20/123 , Y02P20/124
摘要： This disclosure relates generally to processes for the production of elemental sulfur from Syngas, in the power plant, or Low BTU Gas fields and more particularly to processes the mixture of the 100% syngas or low BTU stream with the 100% SO2 recycle gas; with an additional stream comprising oxygen such as air, oxygen-enriched air, or substantially pure oxygen is added to the SO2 recycle stream prior entering the Claus reactor for producing elemental sulfur. The combination of innovation schemes comprises the sulfur recovery unit, the SO2 recovery unit and the gas turbines or boilers to promote a cost effective options by reducing the number of steps in an efficient manner and to achieve near 100% sulfur recovery with significant cost and energy saving. The SO2 gas is recycled from the SO2 recovery unit to the sulfur recovery unit by using one of the regenerable solvent.
摘要翻译：本公开一般涉及从合成气，发电厂或低BTU气田中生产元素硫的方法，更具体地涉及将100％合成气或低BTU流与100％SO 2循环气体的混合物进行处理; 在进入克劳斯反应器以产生元素硫之前，将另外包含氧气的流，例如空气，富氧空气或基本上纯的氧气加入到SO 2再循环料流中。创新计划的组合包括硫回收装置，二氧化硫回收装置和燃气轮机或锅炉，通过以有效的方式减少步骤数量并以显着的成本和能量实现接近100％的硫回收来促进成本效益的选择保存。通过使用一种可再生溶剂，SO 2气体从SO 2回收单元再循环到硫回收单元。

9. 发明申请

US20120308474A1 Process for The Production of Sulfur from Sulfur Dioxide with Tail Gas Recycle 有权
标题翻译：尾气回收利用硫二氧化硫生产工艺
公开(公告)号：US20120308474A1
公开(公告)日：2012-12-06
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。

10. 发明授权

US07927577B2 Sulfur collection systems and processes with integrated degassing 有权
标题翻译：集硫脱硫系统和工艺
公开(公告)号：US07927577B2
公开(公告)日：2011-04-19
申请号：US12686346
申请日：2010-01-12
申请人： Mahin Rameshni , Stephen L. Santo
发明人： Mahin Rameshni , Stephen L. Santo
IPC分类号： C01B17/02
CPC分类号： C01B17/0232 , B01D19/0047 , B01D19/0094 , C01B17/0243
摘要： Systems and methods for the collection of liquid sulfur with integrated degassing are described, wherein the system and methods include the use of one or more liquid jet pumps or eductors employing a pumped liquid sulfur recycle stream as motive fluid to boost sulfur rundown pressure. The new invention eliminates piping constraints inherent with conventional gravity flow, thus permitting location of the sulfur collection vessel above ground and remote from the sulfur recovery unit. In addition, the described methods provide entrainment and enough agitation in the liquid sulfur such that simultaneously degassing occurs within the sulfur collection piping and associated systems described herein. The instant systems and methods are integrated with the degassing system, meaning that the sulfur will be initially degassed during the collection process, and then further degassing occurs by the methods described herein.
摘要翻译：描述了用于收集具有整体脱气的液体硫的系统和方法，其中所述系统和方法包括使用一个或多个液体喷射泵或喷射器，其使用泵送的液体硫再循环流作为动力流体以提高硫磺压力。新发明消除了常规重力流固有的管道限制，从而允许硫收集容器位于地上并远离硫回收单元。此外，所描述的方法提供了液体硫中的夹带和足够的搅拌，使得在本文所述的硫收集管道和相关系统内同时脱气。本系统和方法与脱气系统集成，这意味着硫将在收集过程中首先脱气，然后通过本文所述的方法进一步脱气。

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