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1. 发明申请

WO2023076807A1 TREATING SULFUR DIOXIDE CONTAINING STREAM BY ACID AQUEOUS ABSORPTION 审中-公开
公开(公告)号：WO2023076807A1
公开(公告)日：2023-05-04
申请号：PCT/US2022/078030
申请日：2022-10-13
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： RAYNEL, Guillaume Robert Jean-Francois , DUVAL, Sebastien A. , SHABBIR, Ghulam , ONASANYA, Olatunde O.
IPC分类号： B01D53/50 , B01D53/52 , C01B17/04
摘要： Provided herein are methods and systems for treating a tail gas of a Claus process to remove sulfur-containing compounds. The method includes combusting a tail gas of a Claus process in an excess of oxygen gas to yield a thermal oxidizer effluent. The thermal oxidizer effluent includes sulfur dioxide, water vapor, and oxygen. The effluent is routed to a quench tower and contacted with a dilute aqueous acid quench stream to yield sulfurous acid, hydrated sulfur dioxide, or both. The sulfurous acid or hydrated sulfur dioxide is oxidized with the excess oxygen from the thermal oxidizer effluent to yield sulfuric acid.

2. 发明申请

WO2022039592A1 DEEP COOLER 审中-公开
公开(公告)号：WO2022039592A1
公开(公告)日：2022-02-24
申请号：PCT/NL2021/050508
申请日：2021-08-17
申请人： WORLEY NEDERLAND B.V.
发明人： VAN WARNERS, Anne , ROELOFS, Tobias
IPC分类号： C01B17/02 , B01D53/00 , B01D53/52 , B01D53/86 , B01J19/24 , C01B17/04
摘要： The invention is directed to a process for the recovery of elemental sulfur from a sulfur-containing gas stream comprising leading said sulfur-containing gas stream over a flow path through a shell and tube heat exchanger and cooling said stream to a temperature below the solidification temperature of elemental sulfur to obtain solidified elemental sulfur, wherein said sulfur-containing gas stream is lead over the flow path with a flow that is essentially laminar over essentially the entire length of the flow path. In addition, the invention is directed to an apparatus for the recovery of elemental sulfur with said process. The apparatus comprises a shell and tube heat exchanger that comprises a shell defining a recovery chamber and one or more substantially parallelly positioned tubes for leading a cooling fluid. The tubes comprise a cooling surface area that is at least in part formed by outwardly extending projections, preferably fins.

3. 发明申请

WO2020244802A1 VERFAHREN UND VORRICHTUNG ZUR SCHWEFELGEWINNUNG 审中-公开
公开(公告)号：WO2020244802A1
公开(公告)日：2020-12-10
申请号：PCT/EP2020/025234
申请日：2020-05-20
申请人： LINDE GMBH
发明人： WEIKL, Markus
IPC分类号： C01B17/04 , C01B17/05 , B01J4/00
摘要： Die Erfindung betrifft ein Verfahren sowie eine Vorrichtung zur Gewinnung von Schwefel (20), bei dem aus einem Schwefelwasserstoff enthaltenden Sauergas (11) durch Zumischung von Wasser (14) ein mit Wasserdampf angereichertes Sauergas (15) gebildet wird, das gemeinsam mit einem sauerstoffreichen Gas (16) und Luft (17) über einen Brenner (B) in einen Claus-Reaktor (R) eingeleitet wird, um unter Ausbildung einer Flamme (F) in einem Claus-Prozess zu einem elementaren Schwefel umfassenden Abstrom (19) umgesetzt zu werden, aus dem elementarer Schwefel (20) abgetrennt wird. Kennzeichnend dabei ist, dass ein erster Teil (12) des Schwefelwasserstoff enthaltende Sauergases (11) mit Wasser (14) zu dem mit Wasserdampf angereicherten Sauergas (15) gemischt und anschließend zusammen mit dem sauerstoffreichen Gas (16) in den inneren Bereich (K) der Flamme (F) eingeleitet wird, während der verbleibende zweite Teil (13) des Schwefelwasserstoff enthaltenden Sauergases (11) zusammen mit der Luft (17) dem Außenbereich (A) der Flamme (F) zugeführt wird.

4. 发明申请

WO2020190676A1 LIQUID SULFUR DEGASSING 审中-公开
公开(公告)号：WO2020190676A1
公开(公告)日：2020-09-24
申请号：PCT/US2020/022539
申请日：2020-03-13
申请人： FLUOR TECHNOLOGIES CORPORATION
发明人： FENDERSON, Stephen, N. , CHOW, Thomas, K.T.
IPC分类号： C01B17/02 , B01J8/02 , C01B17/04
摘要： A method and system for liquid sulfur degassing is disclosed. The method and system generally involve degassing liquid sulfur in a degassing vessel, and the level of the liquid sulfur in the degassing vessel is controlled in the degassing vessel by determining the level of liquid sulfur in the degassing vessel.

5. 发明申请

WO2020089099A1 METHOD FOR PRODUCTION OF SULFUR 审中-公开
公开(公告)号：WO2020089099A1
公开(公告)日：2020-05-07
申请号：PCT/EP2019/079233
申请日：2019-10-25
申请人： HALDOR TOPSØE A/S
发明人： THELLEFSEN, Morten , BRORHOLT, Lars Piilmann , SØRENSEN, Per Aggerholm , LYKKE, Mads
IPC分类号： C01B17/04 , B01D53/86 , B01J20/06
摘要： The present invention relates to process plant comprising a Claus reaction furnace, a Claus waste heat boiler, a SO 3 destruction section and a Claus conversion section, wherein the Claus reaction furnace has an inlet and an outlet, the Claus waste heat boiler has a gas inlet, a gas outlet and optional an elemental sulfur outlet, the SO 3 destruction section has a gas inlet and a gas outlet and the Claus conversion section has a gas inlet, a gas outlet and an elemental sulfur outlet, and wherein the inlet of the Claus reaction furnace is configured for receiving a feedstock gas, sulfuric acid, fuel, an oxidant and an optional sulfuric acid atomization media, and the outlet of the Claus reaction furnace is configured for being in fluid communication with the inlet of the Claus waste heat boiler, wherein the outlet of the Claus waste heat boiler is configured for being in fluid communication with the inlet of the SO 3 destruction section, wherein the outlet of the SO 3 destruction section is in fluid communication with the inlet of the Claus conversion section. The process has the associated benefit of such a process avoiding undesired poisoning (sulfation) of Claus catalyst and contamination of elemental sulfur product with sulfuric acid in the Claus conversion section.

6. 发明申请

WO2019165020A1 ADVANCED HEAT INTEGRATION IN SULFUR RECOVERY UNIT-SAFARCLAUS 审中-公开
公开(公告)号：WO2019165020A1
公开(公告)日：2019-08-29
申请号：PCT/US2019/018873
申请日：2019-02-21
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： ALSHAHRANI, Yazeed, Safar
IPC分类号： C01B17/04
摘要： A method for heat integration in a sulfur recovery unit, the method comprising the steps of reacting the acid gas stream and the air stream in the reaction furnace to produce a reaction effluent, where the reaction effluent comprises elemental sulfur, reducing the temperature of the reaction effluent in the heating extension to produce an effluent stream, reducing the temperature of the reaction effluent in the waste heat boiler to produce a cooled effluent stream, reducing the temperature of the cooled effluent in the sulfur condenser to produce a liquid sulfur stream and a cooled gases stream, where the liquid sulfur stream comprises the elemental sulfur, and increasing a temperature of the cooled gases stream to produce a hot gases stream, where the heating extension is configured to capture heat from the reaction effluent and release the heat to the cooled gases stream.

7. 发明申请

WO2019140068A1 HYDROGEN SULFIDE MEDIATED WATER SPLITTING FOR HYDROGEN GAS AND SULFUR DIOXIDE PRODUCTION 审中-公开
公开(公告)号：WO2019140068A1
公开(公告)日：2019-07-18
申请号：PCT/US2019/013018
申请日：2019-01-10
申请人： MASSACHUSETTS INSTITUTE OF TECHNOLOGY
发明人： GREEN, William , GILLIS, Ryan
IPC分类号： C01B17/02 , C01B17/04 , C01B3/04
摘要： The present disclosure describes a hydrogen sulfide decomposition process for converting hydrogen sulfide into hydrogen gas and sulfur dioxide. Such a process can significantly increase the amount of available hydrogen gas. In fact, if each Claus unit in the U.S. creating elemental sulfur in traditional systems were replaced by this hydrogen sulfide decomposition process, 1.83 million metric tons of hydrogen gas could be produced. This represents about 20% of the annual hydrogen produced in the U.S. for any purpose, recovered and available for reuse. Additionally, if desired, the sulfur dioxide can be further processed to form sulfuric acid.

8. 发明申请

WO2019035900A3 SULFUR MANAGEMENT METHOD 审中-公开
公开(公告)号：WO2019035900A3
公开(公告)日：2019-02-21
申请号：PCT/US2018/000168
申请日：2018-08-15
申请人： OXY USA INC.
发明人： ZELLER, Robert, L. , TANAKOV, Mikhail , WEINER, Ronald, M.
IPC分类号： C09K8/532 , C10K1/00 , C10L3/10 , E21B43/00 , C01B17/04 , C01B17/50 , C01B17/69 , C01F11/46
摘要： A method of managing sulfur in a sulfur-containing stream may include steps of providing a sulfur-containing stream; converting sulfur within the sulfur -containing stream to elemental sulfur; transporting the elemental sulfur to a location at or near a sulfur oxide injection location; converting the elemental sulfur to sulfur oxides; recovering electrical energy from said step of converting the elemental sulfur to sulfur oxides; injecting the sulfur oxides into the sulfur oxide injection location. The method may include steps of screening a plurality of injection locations and selecting, from the screened plurality of injection locations, a particular sulfur dioxide injection location with specific reservoir characteristics for the sulfur oxides.

9. 发明申请

WO2019035789A1 A SYSTEM AND METHOD FOR DECOMPOSING GASEOUS HYDROGEN SULFIDE INTO HYDROGEN GAS AND ELEMENTARY SULFUR 审中-公开
公开(公告)号：WO2019035789A1
公开(公告)日：2019-02-21
申请号：PCT/TR2017/050724
申请日：2017-12-29
申请人： TURKIYE PETROL RAFINERILERI ANONIM SIRKETI TUPRAS
发明人： KARAKAYA, Cuneyt
IPC分类号： C01B17/04 , C01B3/00 , C25B1/02
摘要： A decomposition system is developed with the present invention for decomposing gaseous hydrogen sulfide (H 2 S), this system comprising at least one pump (1) supplying H 2 S gas in the form of bubbles; an aqueous acidic phase (2a) having at least one redox couple which do not mix with each other because of density difference and thus form an interface (2c) where they contact each other; and at least one column reactor (2) comprising an organic phase (2b) with a density above the density of water and capable to dissolve elementary sulfur, wherein an oxidation reaction takes place in the interface (2c) by which the H 2 S bubbles carried into the organic phase (2b) through the pump (1) are converted into elementary sulfur; at least one cooling unit (3) which provides the crystallization of elementary sulfur to be taken out of the system; at least one photo-/electrochemical cell (5) comprising a first chamber (5A) comprising an anode electrode, a second chamber (5B) coprisingg a cathode electrode, and a membrane (5C) separating the first chamber (5A) from the second chamber (5B), and to which the aqueous acidic phase (2a) in the reactor is transferred and in which the oxidation of the redox couple and the reduction reaction of H + to H 2 take place, wherein following the reduction reaction, the aqueous acidic phase (2a) is transferred back to the column reactor (2); and an energy source (6) generating the required potential difference to be conducted to one of the electrodes for the oxidation of the redox couple and the reduction reaction of H + to H 2 .

10. 发明申请

WO2018169903A1 ENHANCEMENT OF CLAUS TAIL GAS TREATMENT BY SULFUR DIOXIDE-SELECTIVE MEMBRANE TECHNOLOGY AND SUIFUR DIOXIDE-SELECTIVE ABSORPTION TECHNOLOGY 审中-公开
公开(公告)号：WO2018169903A1
公开(公告)日：2018-09-20
申请号：PCT/US2018/022096
申请日：2018-03-13
申请人： SAUDI ARABIAN OIL COMPANY , ARAMCO SERVICES COMPANY
发明人： BALLAGUET, Jean-pierre, R. , VAIDYA, Milind, M. , CHARRY-PRADA, Iran, D. , DUVAL, Sebastien, A. , HAMAD, Feras , O'CONNELL, John, P. , OTHMAN, Rashid, M.
IPC分类号： B01D53/22 , B01D53/50 , B01D53/86 , B01D53/52 , C01B17/04
摘要： A method for recovering sulfur from an acid gas feed is provided. The method comprising the steps of mixing the acid gas feed and an absorption process outlet stream to form a combined Claus feed, introducing the combined Claus feed and a sulfur dioxide enriched air feed to a Claus process to produce a Claus outlet gas stream, introducing the Claus outlet gas stream to a thermal oxidizer, treating the thermal oxidizer outlet stream in a gas treatment unit to produce a dehydrated stream, introducing the dehydrated stream to a membrane sweeping unit to produce a sweep membrane residue stream and a sulfur dioxide enriched air feed, introducing a sweep air stream to a permeate side of the membrane sweeping unit, and introducing the sweep membrane residue stream to a sulfur dioxide absorption process to produce the absorption process outlet stream and a stack feed.

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