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1. 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。

2. 发明授权

US5366717A Method for producing elemental sulfur from sulfur-containing gases 失效
标题翻译：从含硫气体生产元素硫的方法
公开(公告)号：US5366717A
公开(公告)日：1994-11-22
申请号：US40077
申请日：1993-03-30
申请人： Thomas P. Dorchak , Santosh K. Gangwal , Scott M. Harkins
发明人： Thomas P. Dorchak , Santosh K. Gangwal , Scott M. Harkins
IPC分类号： C01B17/04 , B01D53/36 , C01B17/02
CPC分类号： C01B17/0473 , C01B17/0456 , C01B17/0478 , C01B17/0486
摘要： A method for producing elemental sulfur and reduced/oxidized sulfur compounds from sulfur containing gases. The method comprises mixing a primary gas stream of sulfur-containing gases with a secondary gas stream to produce a combined gas stream having a preselected stoichiometry and contacting the combined gas stream with a sorbent/catalyst. The sorbent/catalyst is selected form the group consisting of silica, alumina, and other Claus-type catalysts, sodium/alumina, zinc ferrite, zinc titanate, and other mixed metal oxides, and mixtures thereof.
摘要翻译：从含硫气体中生成元素硫和还原/氧化硫化合物的方法。该方法包括将含硫气体的初级气体流与二次气流混合以产生具有预选化学计量的组合气流，并使组合的气流与吸附剂/催化剂接触。吸附剂/催化剂选自二氧化硅，氧化铝和其它克劳斯型催化剂，钠/氧化铝，铁酸锌，钛酸锌和其它混合金属氧化物及其混合物。

3. 发明授权

US4702893A Acid air pollution precipitators 失效
标题翻译：酸性空气污染除尘器
公开(公告)号：US4702893A
公开(公告)日：1987-10-27
申请号：US749389
申请日：1985-06-27
申请人： Samuel A. Kirk , Clair F. Kirk , John W. Kirk , Douglas J. Kirk
发明人： Samuel A. Kirk , Clair F. Kirk , John W. Kirk , Douglas J. Kirk
IPC分类号： B01D53/60 , C01B17/04
CPC分类号： C01B17/0478 , B01D53/60 , Y10S55/25
摘要： An apparatus is provided for the elimination of the gaseous pollutants sulfur dioxide and nitric oxide from the emissions of furnaces and smelters, and for the production of two commercial products, liquid sulfur and nitric acid. Two precipitators are operated in series, each containing an annular reaction chamber and a cylindrical separation chamber surrounded by the reaction chamber. The first precipitator combines the furnace or smelter emissions with methane in its reaction chamber in order to reduce the sulfur dioxide in the emissions to sulfur. The emissions are then passed through a tangential duct to the first precipitator's separation chamber where the fine sulfur praticles are converted to liquid sulfur by sending the mixed gases through an involuted spiral baffle and allowing the sulfur particles to coalesce on a trip wire grid. The sulfur particles then melt and fall by gravity to the bottom of the separation chamber, from which point the liquid sulfur is withdrawn. The gaseous emissions then pass from the first precipitator to the reaction chamber of the second precipitator, where they are combined with air and water to change to nitrogen dioxide and then to nitric acid. After passing into the second precipitator's separation chamber, the nitric acid is pumped to the top of the second precipitator's separation chamber and then is concentrated to commercial nitric acid by allowing the acid to descend through a steam jacket in the second precipitator's separation chamber. From the bottom of the second precipitator's separation chamber, the nitric acid is withdrawn as a commercial product from the second precipitator.
摘要翻译：提供了一种设备，用于从炉和冶炼厂的排放物中消除气态污染物二氧化硫和一氧化氮，以及生产两种商业产品液体硫和硝酸。两个除尘器串联运行，每个都包含环形反应室和由反应室包围的圆柱形分离室。第一台除尘器将炉子或冶炼厂排放物与其反应室中的甲烷结合在一起，以减少排放到硫中的二氧化硫。然后将排放物通过切向管道传递到第一除尘器的分离室，其中通过将混合气体通过渐开线的螺旋挡板送出并允许硫颗粒在跳闸线栅上聚结，将精细硫化物转化为液态硫。硫颗粒然后通过重力熔化和下降到分离室的底部，从该点离开液体硫。然后，气体排放物从第一除尘器传递到第二除尘器的反应室，在那里它们与空气和水组合以变成二氧化氮，然后变成硝酸。在进入第二除尘器的分离室之后，将硝酸泵送到第二除尘器分离室的顶部，然后通过允许酸在第二除尘器的分离室中通过蒸汽护套下降而浓缩成商业硝酸。从第二除尘器的分离室的底部，硝酸作为市售产品从第二除尘器中取出。

4. 发明授权

US4022870A Catalytic process for removing sulfur dioxide from gas streams 失效
标题翻译：从气流中除去二氧化硫的催化过程
公开(公告)号：US4022870A
公开(公告)日：1977-05-10
申请号：US596340
申请日：1975-07-16
申请人： Frank C. Palilla , Gary G. Gaudet , Helmut Lingertat
发明人： Frank C. Palilla , Gary G. Gaudet , Helmut Lingertat
IPC分类号： B01D53/86 , B01J23/83 , C01B17/04 , B01J8/00 , C01B17/00 , C01B17/02
CPC分类号： B01D53/8609 , B01J23/83 , C01B17/0478 , C01B17/0486 , C01B17/0491
摘要： This application describes a process for the catalytic reduction of sulfur dioxide in gas streams containing sulfur dioxide to elemental sulfur using a reducing gas such as hydrogen or, preferably, carbon monoxide, in a reactor charged with a material represented by the formula Ln.sub.2 O.sub.3 . Co.sub.2 O.sub.3, where Ln is either Y or Gd.In a further aspect of this invention, a gas stream containing hydrogen sulfide or carbonyl sulfide and sulfur dioxide is passed through a reaction chamber charged with Ln.sub.2 O.sub.3 . Co.sub.2 O.sub.3, where Ln is either Y or Gd, to catalytically produce at a sufficiently elevated temperature elemental sulfur with concomitant reduction of the concentrations of the undesired hydrogen sulfide or carbonyl sulfide and sulfur dioxide.
摘要翻译：本申请描述了在装有由式Ln 2 O 3表示的材料的反应器中，使用还原气体如氢气或优选一氧化碳，将含有二氧化硫的气流中的二氧化硫催化还原为元素硫的方法。 Co2O3，其中Ln是Y或Gd。

5. 发明授权

US3755551A Reduction of sulfur dioxide 失效
标题翻译：减少二氧化硫
公开(公告)号：US3755551A
公开(公告)日：1973-08-28
申请号：US3755551D
申请日：1971-05-27
申请人： ALLIED CHEM
发明人： BRIDWELL B , CARLSON E , EDGECOMB R , WATSON W
IPC分类号： C01B17/04
CPC分类号： C01B17/0478
摘要： THIS INVENTION RELATES TO A METHOD FOR THE REDUCTION OF SULFUR DIOXIDE BY A PROCESS WHICH COMPRISES CONVERTING THE SULFUR DIOXIDE TO ELEMENTAL SULFUR AND/OR OTHER GASEOUS SULFUR COMPOUNDS IN THE PRESENCE OF A CALCIUM ALUMINATE CATALYST AND GASEOUS HYDROCARBON AT A TEMPERATURE WITHIN THE RANGE FROM 1500*F. TO 2600*F.

6. 发明授权

US4039650A Sulfur dioxide reduction 失效
标题翻译：二氧化硫减少
公开(公告)号：US4039650A
公开(公告)日：1977-08-02
申请号：US684529
申请日：1976-05-10
申请人： William D. Daley
发明人： William D. Daley
IPC分类号： B01D53/50 , B01D53/74 , B01D53/86 , C01B17/04
CPC分类号： B01D53/8609 , C01B17/0478 , C01B17/0486 , C01B17/0491
摘要： Sulfur dioxide is reduced to sulfur and hydrogen sulfide with a gaseous reducing agent in the presence of a catalyst by a process involving mixing a sulfur dioxide-containing gas stream with a portion of the gaseous reducing agent and passing the resulting mixture through a first reactor to effect reduction of a portion of the sulfur dioxide to hydrogen sulfide and sulfur, mixing the gas stream from the first reactor with the remaining gaseous reducing agent, and splitting the resulting mixture into two gas streams which are in parallel passed through a second and third reactor to effect reduction of sulfur dioxide to form hydrogen sulfide and sulfur. Periodically, the flow in the first and third reactors is reversed to thereby subject these reactors to periodically alternating heat absorbing and desorbing cycles while the flow in the second reactor is always maintained in the same direction. Inlet gas temperatures to the second and third reactors are maintained within desired ranges by by-passing a portion of the sulfur dioxide-containing gas stream and reducing agent around the first reactor.

7. 发明授权

US3931390A Catalytic process for removing sulfur dioxide from gas streams 失效
标题翻译：从气流中除去二氧化硫的催化过程
公开(公告)号：US3931390A
公开(公告)日：1976-01-06
申请号：US524855
申请日：1974-11-18
申请人： Frank C. Palilla , Gary G. Gaudet , Helmut Lingertat
发明人： Frank C. Palilla , Gary G. Gaudet , Helmut Lingertat
IPC分类号： B01D53/86 , B01J23/83 , C01B17/04 , C01B17/00 , B01J8/00
CPC分类号： C01B17/0491 , B01D53/8609 , B01J23/83 , C01B17/0478 , C01B17/0486
摘要： This application describes a process for the catalytic reduction of sulfur dioxide in gas streams containing sulfur dioxide to elemental sulfur using a reducing gas such as hydrogen or, preferably, carbon monoxide, and a catalyst of the formula Ln.sub.2 O.sub.3 . Co.sub.2 O.sub.3, where Ln is either Y or Gd.
摘要翻译：本申请描述了一种使用还原气体如氢气或优选一氧化碳将催化还原含二氧化硫的二氧化硫还原成元素硫的方法，以及式Ln 2 O 3的催化剂。 Co2O3，其中Ln是Y或Gd。

8. 发明授权

US3726958A Reduction of so{11 {11 in gas mixtures 失效
标题翻译：减少这种气体混合物
公开(公告)号：US3726958A
公开(公告)日：1973-04-10
申请号：US3726958D
申请日：1971-02-22
申请人： EXXON RESEARCH ENGINEERING CO
发明人： HOLT E , WELTY A
IPC分类号： C01B17/04
CPC分类号： C01B17/0478
摘要： A sulfur dioxide-rich off gas stream obtained, as for example, by regeneration of a flue gas desulfurization sorbent, is treated with a hydrocarbon oil in the liquid phase at a temperature of about 250 F. to about 800*F. in order to reduce the sulfur dioxide. The hydrocarbon oil is preferably an inexpensive refinery stream, e.g., gas oil, catalytic cycle stock, or residuum. Hydrogen sulfide formed in the reduction can be reacted with a further quantity of sulfur dioxide to form elemental sulfur. At least a portion of the hydrocarbon oil after reaction with sulfur dioxide may be burned in a furnace in which flue gas containing sulfur dioxide is formed.
摘要翻译：通过例如通过再生烟道气脱硫吸附剂获得的富含二氧化硫的废气流在烃相中在约250°F至约800°F的温度下用烃油处理，以便减少二氧化硫。烃油优选是廉价的炼油厂物流，例如瓦斯油，催化循环油或渣油。还原中形成的硫化氢可以与另外的二氧化硫反应形成元素硫。在与二氧化硫反应后的烃油中的至少一部分可以在其中形成含有二氧化硫的烟道气的炉中燃烧。

9. 发明授权

US3369872A Catalyst for the reaction between hydrocarbons and sulfur dioxide for the preparation of pure sulfur 失效
标题翻译：烃和二氧化硫之间的反应用于制备纯硫的催化剂
公开(公告)号：US3369872A
公开(公告)日：1968-02-20
申请号：US47874565
申请日：1965-08-10
申请人： NORGES GEOL UNDERSOKELSE
发明人： JON AARVIK
IPC分类号： C01B17/04
CPC分类号： C01B17/0478

10. 发明授权

US3199955A Process of reducing sulphur dioxide to elemental sulphur 失效
标题翻译：将二氧化硫还原成元素硫的方法
公开(公告)号：US3199955A
公开(公告)日：1965-08-10
申请号：US21802562
申请日：1962-08-20
申请人： TEXAS GULF SULPHUR CO
发明人： WEST JAMES R , CONROY EDWARD H
IPC分类号： C01B17/04
CPC分类号： C01B17/0478

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