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21. 发明授权

US08617509B1 Thermal reduction of sulfur dioxide to sulfur in a single reaction furnace 有权
标题翻译：在单个反应炉中将二氧化硫热还原成硫
公开(公告)号：US08617509B1
公开(公告)日：2013-12-31
申请号：US13854092
申请日：2013-03-31
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： C01B17/0478 , C01B17/0426
摘要： Processes for the thermal reduction of sulfur dioxide to elemental sulfur in a single reaction furnace are disclosed. The reaction furnace contains an alumina monolith that performs as an active catalyst. The reaction furnace is followed by a Claus conversion zone, wherein H2S and SO2 react to produce additional elemental sulfur. Three methods to eliminate soot formation and two methods to consume produced H2 and CO are described. One or combination of these methods may be employed which consists of a) adding steam (water vapor), b) adding recycled sulfur or c) adding recycled tail gas.
摘要翻译：公开了在单个反应炉中将二氧化硫热还原成元素硫的方法。反应炉含有作为活性催化剂的氧化铝整料。反应炉后面是克劳斯转化区，其中H2S和SO2反应产生额外的元素硫。描述了消除烟灰形成的三种方法和两种消耗生成的H 2和CO的方法。可以使用这些方法中的一种或组合，其包括a）加入蒸汽（水蒸汽），b）加入再循环的硫或c）加入再循环的尾气。

22. 发明申请

US20120321548A1 THERMAL REDUCTION OF SULFUR DIOXIDE TO SULFUR WITH TEMPERATURE CONTROLLED FURNACE 有权
标题翻译：硫化二氧化硫与温度控制炉的热降低
公开(公告)号：US20120321548A1
公开(公告)日：2012-12-20
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： C01B17/04
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 described and 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 with allowing adequate residence time. The temperature moderation is achieved by one or combinations of three different methods adding external waste heat boiler, followed by carbon steel refractory 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 in one or more reactors containing Claus type catalyst or combination of them.
摘要翻译：描述和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域，以促进硫与氢气反应以消耗氢气一氧化碳并产生H 2 S 和CO，允许足够的停留时间。通过加入外部余热锅炉的三种不同方法的一种或组合实现温度调节，随后是碳钢耐火容器，以提供足够的停留时间用于产生H 2 S的反应或将尾气再循环到第二区的2- 区域反应炉，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进一步反应以在一个或多个含克劳斯型催化剂或它们的组合的反应器中产生另外的元素硫。

23. 发明申请

US20100178236A1 Sulfur Collection Systems and Processes with Integrated Degassing 有权
标题翻译：含硫综合脱硫系统和工艺
公开(公告)号：US20100178236A1
公开(公告)日：2010-07-15
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： C01B17/033 , B01D19/00
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。

24. 发明授权

US07722852B2 Process for the thermal reduction of sulfur dioxide to sulfur 有权
标题翻译：将二氧化硫热还原成硫的方法
公开(公告)号：US07722852B2
公开(公告)日：2010-05-25
申请号：US12167676
申请日：2008-07-03
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： C01B17/04
CPC分类号： C01B17/0404 , C01B17/0434 , C01B17/0456 , C01B17/0478 , C01B17/0486 , C01B17/0491 , C01B17/164
摘要： Processes for the thermal reduction of sulfur dioxide to elemental sulfur are described and disclosed. The processes described include three general reaction sections, including the reaction furnace portion where the SO2-containing stream is combusted, the hydrogenation portion wherein the effluent from the reaction furnace is hydrogenated over an appropriate catalyst, and a Claus conversion portion, wherein residual H2S and SO2 are further reacted to produce additional elemental sulfur.
摘要翻译：描述和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通用反应段，包括其中含SO 2的物流燃烧的反应炉部分，其中来自反应炉的流出物在合适的催化剂上氢化的氢化部分和克劳斯转化部分，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。

25. 发明授权

US07485281B2 Process for the production of sulfur from sulfur dioxide 失效
标题翻译：从二氧化硫生产硫的方法
公开(公告)号：US07485281B2
公开(公告)日：2009-02-03
申请号：US11451891
申请日：2006-06-13
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： C01B17/04
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.
摘要翻译：将含二氧化硫的气流还原成元素硫是通过使诸如天然气，甲醇或氢气和一氧化碳的混合物的还原性气体与再循环的硫接触来产生含有硫化氢的物流，其可以与含有二氧化硫的气流。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。

26. 发明申请

US20090010834A1 Process for the Thermal Reduction of Sulfur Dioxide to Sulfur 有权
标题翻译：将二氧化硫热还原成硫的工艺
公开(公告)号：US20090010834A1
公开(公告)日：2009-01-08
申请号：US12167676
申请日：2008-07-03
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： C01B17/04
CPC分类号： C01B17/0404 , C01B17/0434 , C01B17/0456 , C01B17/0478 , C01B17/0486 , C01B17/0491 , C01B17/164
摘要： Processes for the thermal reduction of sulfur dioxide to elemental sulfur are described and disclosed. The processes described include three general reaction sections, including the reaction furnace portion where the SO2-containing stream is combusted, the hydrogenation portion wherein the effluent from the reaction furnace is hydrogenated over an appropriate catalyst, and a Claus conversion portion, wherein residual H2S and SO2 are further reacted to produce additional elemental sulfur.
摘要翻译：描述和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通用反应段，包括其中含SO 2的物流燃烧的反应炉部分，其中来自反应炉的流出物在合适的催化剂上氢化的氢化部分和克劳斯转化部分，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。

27. 发明授权

US07067101B2 Water wall boiler for air and oxygen fired Claus sulfur recovery units 失效
标题翻译：水壁锅炉用于空气和氧气的克劳斯硫回收装置
公开(公告)号：US07067101B2
公开(公告)日：2006-06-27
申请号：US10868630
申请日：2004-06-15
申请人： Mahin Rameshni
发明人： Mahin Rameshni
IPC分类号： C01B17/02 , B01D53/52
CPC分类号： C01B17/0413 , Y02P20/129
摘要： The thermal combustion step of the modified Claus process is carried out in a water-wall boiler instead of a refractory-lined reaction furnace. The water-wall boiler replaces the conventional refractory-lined furnace and waste heat boiler when air, oxygen, or oxygen-enriched air is used as the oxidant. The acid gas combustion may be hydrogen sulfide-rich or hydrogen sulfide-lean with or without contaminants such as hydrocarbons and ammonia. Thermal combustion is performed in a single stage, without a recycle, for all levels of oxygen enrichment.
摘要翻译：改性Claus工艺的热燃烧步骤在水壁锅炉中代替耐火材料衬里的反应炉进行。当使用空气，氧气或富氧空气作为氧化剂时，水壁锅炉取代了传统的耐火材料炉和余热锅炉。酸性气体燃烧可以是富含硫化氢或贫硫的，有或没有污染物如烃和氨。对于所有浓度的氧气浓缩，在单个阶段进行热燃烧，无需循环。

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