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    EXTENDED THERMAL STAGE SULFUR RECOVERY PROCESS
    1.
    发明申请
    EXTENDED THERMAL STAGE SULFUR RECOVERY PROCESS 审中-公开

    公开(公告)号：US20190152780A1

    公开(公告)日：2019-05-23

    申请号：US16257869

    申请日：2019-01-25

    申请人： SAUDI ARABIAN OIL COMPANY

    发明人： John P. O'CONNELL

    IPC分类号： C01B17/04 ,  C01B17/16 ,  B01J19/00 ,  C01B17/50 ,  B01J12/00

    CPC分类号： C01B17/0426 ,  B01D53/1481 ,  B01D53/52 ,  B01D53/523 ,  B01D2257/302 ,  B01D2257/304 ,  B01J12/007 ,  B01J19/0013 ,  B01J19/0053 ,  C01B17/0404 ,  C01B17/16 ,  C01B17/508

    摘要： A process for recovering sulfur in a sulfur recovery unit comprising the steps of reacting hydrogen sulfide and oxygen in the reaction furnace at a minimum reaction temperature to produce a reaction effluent; reducing the temperature of the reaction effluent from the minimum reaction temperature to a boiler section outlet temperature to produce a cooled effluent, the cooled effluent comprises hydrogen sulfide, sulfur dioxide, and sulfur-containing contaminants; reacting the hydrogen sulfide, sulfur dioxide, and sulfur-containing contaminants in the catalytic extension to produce a boiler catalytic effluent; reducing the boiler catalytic effluent temperature such that the elemental sulfur condenses to form liquid sulfur and a gases stream; reacting the hydrogen sulfide and sulfur-containing contaminants with the oxygen to produce an oxidizer outlet stream comprises sulfur dioxide; and separating the sulfur dioxide in the scrubbing unit to produce a recycle stream and an effluent gases, the recycle stream comprises sulfur dioxide.

    Device and method for the combustion of sulfur and sulfur-containing compounds
    3.
    发明授权
    Device and method for the combustion of sulfur and sulfur-containing compounds 有权
    用于硫和含硫化合物燃烧的装置和方法

    公开(公告)号：US08518366B2

    公开(公告)日：2013-08-27

    申请号：US13512158

    申请日：2010-10-28

    申请人： Dieter Förtsch ,  Martin Kürten

    发明人： Dieter Förtsch ,  Martin Kürten

    IPC分类号： B01J12/00 ,  B01J19/00 ,  C01B17/54 ,  F23C6/00

    CPC分类号： C01B17/60 ,  C01B17/508 ,  C01B17/76 ,  C01B17/7655

    摘要： The present invention relates to a process and a device for the combustion of sulphur and/or sulphur-containing compounds, via which a sufficient production of SO2-containing gases having a high SO2 concentration is made possible. The combustion preferably proceeds using a combustion gas which has an oxygen fraction at least as high as air, but preferably a higher fraction of oxygen. The process and the device should be suitable, in particular, for providing sulphur dioxide as a source for further production of sulphuric acid or highly concentrated SO3-containing gases. In addition, the device and the process should be suitable for oxidizing hydrogen-sulphide-containing gases, such as occur, for example, in the refinery industry, in high concentrations to SO2.

    摘要翻译： 本发明涉及一种用于燃烧硫和/或含硫化合物的方法和装置，通过该方法和装置可以使SO 2浓度高的含SO 2的气体的产生成为可能。 燃烧优选使用具有至少与空气一样高的氧分数但优选较高氧分数的燃烧气体。 该方法和装置特别适用于提供二氧化硫作为进一步生产硫酸或高浓度含SO 3的气体的来源。 此外，该装置和方法应适用于将氧化硫化氢的气体，例如在炼油工业中以高浓度氧化成二氧化硫。

    Process for treating acid gas in staged furnaces with inter-stage heat recovery
    5.
    发明申请
    Process for treating acid gas in staged furnaces with inter-stage heat recovery 有权
    在阶段热回收的阶段炉中处理酸性气体的方法

    公开(公告)号：US20090226353A1

    公开(公告)日：2009-09-10

    申请号：US12074988

    申请日：2008-03-07

    申请人： Zeru Berhane Tekie ,  Luis Alberto Chu ,  Eugene F. Hartstein

    发明人： Zeru Berhane Tekie ,  Luis Alberto Chu ,  Eugene F. Hartstein

    IPC分类号： B01D53/52

    CPC分类号： B01D53/52 ,  B01D53/1462 ,  B01D53/75 ,  B01D2251/102 ,  C01B17/508 ,  C01B17/58 ,  C01B17/76 ,  F23C6/04 ,  F23G7/065 ,  F23L7/002 ,  Y02P20/124 ,  Y02P20/129 ,  Y02P20/152

    摘要： A process for treating acid gas comprising hydrogen sulfide comprises introducing a first acid gas into a reducing furnace to produce a first oxidized gas stream, cooling the first oxidized gas stream in a first heat recovery system, introducing the cooled gas stream into an oxidizing furnace to produce a second oxidized gas stream and cooling the second oxidized gas stream in a second heat recovery system. The acid gas is preferably produced in a refinery after treatment of sour gas or sour water. Spent acid may be fed into oxidizing furnace as part of a sulfuric acid recovery process. The spent acid can be spent sulfuric acid from a sulfuric acid alkylation process.

    摘要翻译： 一种处理含有硫化氢的酸性气体的方法包括将第一酸性气体引入还原炉中以产生第一氧化气流，在第一热回收系统中冷却第一氧化气流，将冷却的气流引入氧化炉中 产生第二氧化气流并在第二热回收系统中冷却第二氧化气流。 酸性气体优选在酸性气体或酸性水处理之后在炼油厂中生产。 废酸可以作为硫酸回收过程的一部分进料到氧化炉中。 废酸可以从硫酸烷基化方法处理废硫酸。

    Process for processing spent photographic baths
    8.
    发明授权
    Process for processing spent photographic baths 失效
    处理用过的摄影浴的过程

    公开(公告)号：US5863442A

    公开(公告)日：1999-01-26

    申请号：US857203

    申请日：1997-05-15

    申请人： Roger Noero

    发明人： Roger Noero

    IPC分类号： G03C5/00 ,  C01B17/05 ,  C01B17/50 ,  C01C1/02 ,  C02F1/58 ,  C02F1/62 ,  C02F1/64 ,  C02F1/72 ,  C02F9/00 ,  C02F1/20

    CPC分类号： C02F1/20 ,  C01B17/05 ,  C01B17/508 ,  C01C1/026 ,  C02F1/66 ,  C02F9/00 ,  C02F2101/101 ,  C02F2101/20 ,  C02F2103/40 ,  C02F2209/06 ,  C02F2301/063

    摘要： A process for the processing of spent photographic baths of black and white processes, namely developing baths with a preponderant content of alkali sulphite, particularly sodium sulphite, and fixing baths with a preponderant content of thiosulphates, particularly ammonium thiosulphate and/or sodium thiosulphate is proposed and is characterized in that following the deposition of the silver contained in the baths, the spent fixing baths are brought to a pH of approximately 0.5 with concentrated HCl and the elementary sulphur resulting from the decomposition of the thiosulphates is separated, whilst the remaining sulphurous acid intermediate solution is mixed with the spent developing baths and adjusted to a pH of approximately 2 and the resulting, SO.sub.2 -supersaturated solution is heated and pure SO.sub.2 is drawn off in a vacuum. Finally, the residual solution is adjusted to a pH of approximately 10 with Ca(OH).sub.2 and the liberated ammonia is drawn off.

    摘要翻译： 提出了一种处理黑色和白色工艺用过的照相浴的方法，即开发具有碱金属亚硫酸盐，特别是亚硫酸钠的主要含量的洗浴，以及含硫代硫酸盐，特别是硫代硫酸钠和/或硫代硫酸钠的重要含量的固定浴。 并且其特征在于，在沉积包含在浴中的银之后，用浓HCl将废定影液的pH调至约为0.5，并且由硫代硫酸盐分解产生的元素硫被分离，而其余的亚硫酸 将中间溶液与废显影浴混合并调节至约2的pH，并且将所得的SO 2过饱和溶液加热并在真空中抽出纯的SO 2。 最后，用Ca（OH）2将残余溶液调节至约10左右，释放出的氨被排出。