公开(公告)号：US20200164355A1

公开(公告)日：2020-05-28

申请号：US16696773

申请日：2019-11-26

Applicant: KUNMING UNIVERSITY OF SCIENCE AND TECHNOLOGY

Inventor： Ping NING ,  Qiulin ZHANG ,  Tengxiang ZHANG ,  Yaqing ZHANG ,  Huimin Wang

IPC: B01J38/66 ,  C01B17/02 ,  C01B17/027

Abstract: The present invention discloses a method and system of recovering elemental sulfur and regenerating the catalyst for a sulfur-deposited catalyst, including immersing the sulfur-deposited catalyst in the ammonium sulfide solution, the leaching reaction under normal pressure and temperature, replacing the ammonium sulfide solution and immersing again for extraction for the same time; collecting the leachate of the two steps, conducting gas stripping of the elemental sulfur by adopting the high-temperature nitrogen gas, condensing the tail gas of gas stripping, subjecting to a purification treatment and then discharging, with the liquor condensate being the ammonium sulfide solution. Finally, the solid in the leachate is filtered, washed and dried after the gas stripping to obtain the elemental sulfur; and the washing and drying of catalysts that has been subjected to the two times of immersion and extraction obtain the regenerated catalysts.

公开(公告)号：US09346677B2

公开(公告)日：2016-05-24

申请号：US13598516

申请日：2012-08-29

Applicant: Casey J. Metheral ,  Leslie L. Lang ,  Jamsheed P. Irani ,  Cody J. Wohlers ,  Sergio A. De Paoli

Inventor： Casey J. Metheral ,  Leslie L. Lang ,  Jamsheed P. Irani ,  Cody J. Wohlers ,  Sergio A. De Paoli

IPC: B01D19/00 ,  B01F3/04 ,  C01B17/027 ,  C01B17/02

CPC classification number: C01B17/0232 ,  B01D11/04 ,  B01D2011/007

Abstract: A novel system and method for degassing H2S and H2Sx from liquid sulfur (sulphur) is disclosed. The system includes a degassing vessel with a plurality of cells. The cells include a sparging gas mat with a perforated surface at the bottom of the cell to allow the release of air bubbles (or sparging gas) into the cells. A catalyst may be used during the process. As a result, hydrogen sulfide and hydrogen polysulfide are efficiently and effectively removed from the liquid sulfur.

Abstract translation: 公开了一种从液硫（硫）中脱气H2S和H2Sx的新型系统和方法。 该系统包括具有多个电池的脱气容器。 细胞包括在细胞底部具有穿孔表面的鼓泡气垫，以允许气泡（或喷射气体）释放到细胞中。 在该过程中可以使用催化剂。 结果，硫化氢和多硫化氢被有效地从液体硫中除去。

公开(公告)号：US07998451B2

公开(公告)日：2011-08-16

申请号：US12346347

申请日：2008-12-30

Applicant: Alfred E. Keller ,  Nathan A. Hatcher ,  Sriram Ramani ,  Terry D. Pruitt ,  Michael D Smith

Inventor： Alfred E. Keller ,  Nathan A. Hatcher ,  Sriram Ramani ,  Terry D. Pruitt ,  Michael D Smith

IPC: C01B17/027

CPC classification number: B01D1/28 ,  B01D1/289 ,  B01D1/2893 ,  B01D5/006 ,  C01B17/0232 ,  C01B17/167

Abstract: A process is disclosed for removing hydrogen sulfide from liquid sulfur including: passing a liquid sulfur feed comprising liquid sulfur and hydrogen sulfide to a vaporizer; vaporizing at least a portion of the liquid sulfur feed in the vaporizer to thereby form a first vapor stream comprising gaseous sulfur and gaseous hydrogen sulfide; partially condensing the first vapor stream in a condenser to form a liquid product stream comprising liquid sulfur and a second vapor stream comprising hydrogen sulfide; wherein the liquid product stream has a lower concentration of hydrogen sulfide than the liquid sulfur feed.

Abstract translation: 公开了一种从液态硫中除去硫化氢的方法，包括：将含有液硫和硫化氢的液态硫进料通入汽化器; 蒸发蒸发器中的液体硫进料的至少一部分，从而形成包含气态硫和气态硫化氢的第一蒸气流; 在冷凝器中部分冷凝第一蒸汽流以形成包含液态硫的液体产物流和包含硫化氢的第二蒸气流; 其中液体产物流具有比液体硫进料低的硫化氢浓度。

公开(公告)号：US07776308B2

公开(公告)日：2010-08-17

申请号：US11914331

申请日：2006-03-18

Applicant: Walter Boll ,  Wofgang Nehb ,  Eckhard Jüngst

Inventor： Walter Boll ,  Wofgang Nehb ,  Eckhard Jüngst

IPC: C01B17/027 ,  B01D53/52

CPC classification number: B01D53/8615 ,  B01D2255/20738 ,  B01D2257/302 ,  B01D2257/304 ,  B01D2257/308 ,  B01J8/0453 ,  B01J8/0496 ,  B01J23/745 ,  B01J27/224 ,  B01J2208/00176 ,  B01J2208/00371 ,  B01J2208/025 ,  B01J2219/182 ,  C01B17/0456 ,  C01B17/046 ,  C01B17/0465

Abstract: In an apparatus for continuously recovering sulfur from a gas stream containing 0.1 to 3.0 vol-% H2S, further gaseous sulfur compounds and sulfur, the gas stream first is passed over a reduction stage consisting of hydrogenation catalyst and then over a selective oxidation stage consisting of oxidation catalyst. To reduce the amount of apparatus involved, it is provided to arrange the reduction stage and the selective oxidation stage in a reaction tank and to leave a space for introducing a gaseous cooling medium into the gas stream between the two stages.

Abstract translation: 在从含有0.1至3.0体积％H 2 S，进一步气态硫化合物和硫的气流中连续回收硫的装置中，气流首先通过由氢化催化剂组成的还原阶段，然后通过由 氧化催化剂。 为了减少所涉及的装置的数量，提供了将还原阶段和选择性氧化阶段设置在反应罐中并且留下用于将气态冷却介质引入两级之间的气流中的空间。

公开(公告)号：US20090317316A1

公开(公告)日：2009-12-24

申请号：US12209202

申请日：2008-09-11

Applicant: Robert A. McLauchlan ,  Frederick J. Siegele

Inventor： Robert A. McLauchlan ,  Frederick J. Siegele

IPC: B01D53/52 ,  C01B17/04 ,  C01B17/027 ,  B01D47/00 ,  G05D7/06

CPC classification number: G05D21/02 ,  B01D53/1425 ,  B01D53/1468 ,  B01D53/26 ,  B01D53/52 ,  B01D53/75 ,  B01D53/77 ,  B01D53/78 ,  B01D2251/306 ,  B01D2257/304 ,  B01D2257/80 ,  C01B17/04 ,  C01B17/0404 ,  Y10T137/7761

Abstract: A method operable to remove contaminants from a contaminated fluid stream is provided. The process includes receiving the fluid stream containing contaminants. A first portion of the contaminants are removed from the fluid stream with a first scrubbing vessel. A first base solution reacts with the contaminants such that the contaminants enter a contaminant solution. A remaining portion of the contaminants from the fluid stream is then removed with a at least one additional scrubbing vessel, wherein a second base solution reacts with the contaminants such that part of the remaining portion of the contaminants enter a second solution. Water content is then removed from the fluid stream with a desiccating module, wherein the desiccating module outputs a clean fluid stream.

Abstract translation: 提供了可操作以从污染的流体流中除去污染物的方法。 该方法包括接收含有污染物的流体流。 用第一洗涤容器从流体流中除去污染物的第一部分。 第一碱溶液与污染物反应，使污染物进入污染物溶液。 然后用至少一个额外的洗涤容器除去来自流体物流的剩余部分污染物，其中第二碱溶液与污染物反应，使得剩余部分污染物的一部分进入第二溶液。 然后用干燥模块从流体流中除去含水量，其中干燥模块输出清洁的流体流。

公开(公告)号：US4876079A

公开(公告)日：1989-10-24

申请号：US201382

申请日：1988-05-31

Applicant: Erhard Kliem ,  Guenter Weber ,  Alfred Kunz

Inventor： Erhard Kliem ,  Guenter Weber ,  Alfred Kunz

IPC: B01D17/02 ,  B01D17/025 ,  C01B17/02 ,  C01B17/027

CPC classification number: C01B17/0205 ,  B01D17/0208

Abstract: For the separation of sulfur from a sulfur/alkaline solution suspension, the suspension is heated to a temperature above the melting temperature of the sulfur and is introduced under pressure into a separating tank 1, containing a separating chamber 8, alkaline solution chamber, and sulfur chamber 12. From the separating tank, settled liquid sulfur is continuously withdrawn, on the one hand, via conduit 16 and alkaline solution is continuously withdrawn, on the other hand, via conduit 9. In order to provide a system having little susceptibility to trouble, the separating chamber and alkaline solution chamber are operated in the flooded mode, thereby avoiding the necessity for a steam blanket therein.

Abstract translation: 为了从硫/碱性溶液悬浮液中分离硫，将悬浮液加热至高于硫的熔融温度的温度，并在压力下引入到分离罐1中，该分离罐1包含分离室8，碱性溶液室和硫 从分离罐中，沉降的液态硫一方面通过导管16连续取出，另一方面，通过导管9连续抽出碱性溶液。为了提供对故障敏感度小的系统 ，分离室和碱性溶液室以淹水模式操作，从而避免了蒸汽毯在其中的必要性。

公开(公告)号：US4730369A

公开(公告)日：1988-03-15

申请号：US874869

申请日：1986-06-16

Applicant: Gary J. Nagl ,  Leslie C. Hardison

Inventor： Gary J. Nagl ,  Leslie C. Hardison

IPC: B01J6/00 ,  C01B17/02 ,  C01B17/027

CPC classification number: C01B17/0205 ,  B01J6/005

Abstract: Method and apparatus for recovering sulfur from an aqueous slurry. The slurry is passed downwardly through a shell-and-tube heat exchanger having vertically arranged tubes, wherein it is heated sufficiently to melt the sulfur. The liquid mixture leaving the heat exchanger is discharged into a first separation zone, in which a phase separation between the lighter aqueous phase and the denser liquid sulfur occurs. The upper aqueous phase is then transported to an intermediate point in the height of a vertically elongated second separation zone, while the molten sulfur is transported from the lower end of the first separation zone to a point adjacent the lower end of said second separation zone, in which an interface between the phases is maintained at a point below the entry point of the aqueous liquid phase into the second separation zone. The aqueous liquid is discharged from the top of the second separation zone, while molten sulfur is discharged from the bottom of said zone.

Abstract translation: 从含水浆料中回收硫的方法和设备。 将浆料向下通过具有垂直排列的管的管壳式热交换器，其中其被充分加热以熔化硫。 离开热交换器的液体混合物被排放到第一分离区域中，在第一分离区域中发生较轻的水相和较稠的液体硫之间的相分离。 然后将上部水相输送到垂直细长的第二分离区的高度的中间点，同时熔融的硫从第一分离区的下端输送到邻近所述第二分离区的下端的点， 其中相之间的界面保持在低于水性液相进入第二分离区的入口点。 水性液体从第二分离区的顶部排出，而熔融硫从所述区域的底部排出。

公开(公告)号：US4612020A

公开(公告)日：1986-09-16

申请号：US731654

申请日：1985-05-07

Applicant: Herbert Fischer ,  Manfred Kriebel

Inventor： Herbert Fischer ,  Manfred Kriebel

IPC: C01B17/027 ,  B01D19/00 ,  C01B17/02

CPC classification number: C01B17/0232 ,  B01D19/0005 ,  B01D19/0047

Abstract: The liquid sulfur which contains H.sub.2 S is sprayed in a steel vessel and the liberated gases which are rich in H.sub.2 S are withdrawn. A degasification accelerator is added to the liquid sulfur. The steel vessel contains at least two chambers, which communicate with each other and are connected in series. Sulfur at temperatures in the range from 140.degree. to 160.degree. C. is supplied to the first chamber. Sulfur is withdrawn from the second chamber and is cooled to temperatures of 120.degree. to 135.degree. C. outside the vessel. The liquid sulfur which has been cooled is sprayed in the gas space of the first chamber. The sulfur is caused to remain in the steel vessel for a dwelling time of 12 to 32 hours. The gas spaces of the chambers are scavenged with an oxygen-free inert gas. The sulfur is withdrawn from the vessel and sprayed in the gas space of one of the chambers about 30 to 50 times until the dwelling time of the sulfur in the vessel has expired.

Abstract translation: 将包含H 2 S的液态硫喷射在钢容器中，并且排出富含H 2 S的释放气体。 向液体硫中加入脱气促进剂。 该钢制容器至少包含两个彼此连通并串联连接的室。 将温度范围为140〜160℃的硫供给第一室。 硫从第二个室中取出并冷却至容器外120℃至135℃的温度。 被冷却的液体硫被喷射到第一室的气体空间中。 使硫留在钢制容器中12到32小时的停留时间。 室内的气体空间用无氧惰性气体清除。 将硫从容器中取出并在其中一个室的气体空间中喷洒约30至50次，直到容器中的硫的停留时间已经过期。

公开(公告)号：US4443253A

公开(公告)日：1984-04-17

申请号：US417829

申请日：1982-09-14

Applicant: Donald R. Weir ,  Ian M. Masters

Inventor： Donald R. Weir ,  Ian M. Masters

IPC: C22B19/00 ,  C01B17/027 ,  C01G5/00 ,  C01G21/00 ,  C22B20060101 ,  C22B3/00 ,  C22B3/04 ,  C22B19/20

CPC classification number: C22B19/26 ,  C22B19/22 ,  Y02P10/234

Abstract: A process for recovering zinc from zinc-containing sulphidic material also containing iron and from zinc oxide containing material. Zinc-containing sulphidic material is leached under oxidizing conditions at a temperature in the range of from about 130.degree. to about 170.degree. C. in aqueous sulphuric acid solution with an initial stoichiometric excess of sulphuric acid relative to the zinc content of the sulphidic material to form a leach slurry containing dissolved zinc and iron. The leach step is continued until a substantial amount of zinc has been dissolved from the sulphidic material. Zinc oxide containing material is then added to the leach slurry to raise the pH of the slurry to a value in the range of from about 4.5 to about 5.5 to precipitate dissolved iron and form an iron-containing residue and a relatively iron-free leach solution. The residue is separated from the leach solution, and the leach solution is treated to recover zinc.

Abstract translation: 还含有铁和含氧化锌的材料的含锌硫化物材料中回收锌的方法。 含锌硫化物材料在氧化条件下在约130至约170℃的温度范围内，在硫酸水溶液中浸出，其中初始化学计量过量的硫酸相对于硫化物材料的锌含量至 形成含有溶解的锌和铁的浸出浆料。 浸出步骤持续进行，直到大量锌从硫化物质中溶解出来。 然后将含氧化锌的材料加入浸出浆料中以将浆料的pH升高至约4.5至约5.5的范围，以沉淀溶解的铁并形成含铁残渣和相对无铁的浸出溶液 。 将残余物与浸出溶液分离，并将浸出溶液处理以回收锌。

公开(公告)号：US4158039A

公开(公告)日：1979-06-12

申请号：US817655

申请日：1977-07-21

Applicant: Hansjurgen Ullrich

Inventor： Hansjurgen Ullrich

IPC: C01B17/027 ,  B01J3/04 ,  C01B17/02 ,  C01B17/08

CPC classification number: C01B17/0205

Abstract: Apparatus for continuously separating sulfur from an aqueous sulfur suspension which is heated above the melting point of sulfur. The apparatus comprises a pressure vessel having heating and stirring means in its upper part, the lower part of the vessel serving as a settling tank where sulfur is precipitated out of the aqueous solution and withdrawn through an outlet in the bottom of the vessel. Intermediate the upper and lower parts of the vessel is a substantially horizontal, shallow conical partition which has apertures or slots therein to permit the suspension to pass from the upper part to the lower part. A steam-heated jacket surrounds the vessel; while pressure sensing devices are utilized to maintain the level of the water in the top part and the boundary surface between the water phase and the sulfur phase in the bottom part at desired heights. The pressure sensing devices also control the withdrawal of sludge at the interface between the water phase and sulfur phase as a function of the differential pressure above and below the interface.

Abstract translation: 用于连续地从加硫高于硫的熔点的含水硫悬浮液中分离出硫的装置。 该装置包括在其上部具有加热和搅拌装置的压力容器，容器的下部用作沉淀槽，其中硫从水溶液中沉淀出并通过容器底部的出口排出。 中间体，容器的上部和下部是基本上水平的浅锥形分隔件，其中具有孔或槽，以允许悬架从上部传递到下部。 围绕容器的蒸汽加热护套; 而压力感测装置用于将顶部的水的水平和底部中的水相和硫相之间的边界表面保持在期望的高度。 压力感测装置还控制在水相和硫相之间的界面处的污泥的排出作为界面上方和下方的压差的函数。