PROCESS AND APPARATUS TO DETECT MERCAPTANS IN A CAUSTIC STREAM

    公开(公告)号:US20190003978A1

    公开(公告)日:2019-01-03

    申请号:US16007669

    申请日:2018-06-13

    Applicant: UOP LLC

    Abstract: The present invention relates to a system to detect mercaptides or sulfides in a caustic stream. More particularly, this invention relates to an on-line analyzer for measuring mercaptides using a color changing reagent to quantify mercaptide or sulfide concentration in a caustic stream. The on-line analyzer which includes a liquid sensor which can provide valuable feedback to an operator for controlling a processing unit for the catalytic oxidation of mercaptides to disulfides in an alkaline environment.

    PROCESSES FOR SWEETENING A HYDROCARBON STREAM
    4.
    发明申请
    PROCESSES FOR SWEETENING A HYDROCARBON STREAM 审中-公开
    改造油气田的过程

    公开(公告)号:US20170009147A1

    公开(公告)日:2017-01-12

    申请号:US15196243

    申请日:2016-06-29

    Applicant: UOP LLC

    CPC classification number: C10G19/08 C10G2300/202 C10G2300/4081

    Abstract: A process and apparatus for sweetening a hydrocarbon stream. The apparatus includes two vessels. In a first extraction vessel, caustic removes mercaptans from the hydrocarbon stream. In a second oxidation vessel, the mercaptans in the rich caustic are converted in disulfides. The lean caustic and disulfides are passed back to the first extraction vessel in which the disulfides are separated into the sweetened hydrocarbon phase. The second vessel may receive a wash oil, such as the sweetened hydrocarbon phase, to remove disulfides from a vented gas stream.

    Abstract translation: 一种用于使烃流变甜的方法和装置。 该装置包括两个容器。 在第一提取容器中,苛性碱从烃流中除去硫醇。 在第二氧化容器中,富碱中的硫醇以二硫化物转化。 贫碱和二硫化物被传回到其中二硫化物被分离成甜化烃相的第一提取容器。 第二容器可以接收洗涤油,例如甜化烃相,以从排出的气流中除去二硫化物。

    Process for removing carbonyl sulfide from a hydrocarbon stream
    5.
    发明授权
    Process for removing carbonyl sulfide from a hydrocarbon stream 有权
    从烃流中除去羰基硫的方法

    公开(公告)号:US09394490B2

    公开(公告)日:2016-07-19

    申请号:US14177868

    申请日:2014-02-11

    Applicant: UOP LLC

    CPC classification number: C10G25/12 C10G21/08 C10G2300/202

    Abstract: A method and apparatus for removing carbonyl sulfide (COS) from a hydrocarbon stream have been developed. The design allows removal of COS in the regeneration stream to less than 10 wppm, even at high concentrations of COS. The spent bed is regenerated using a portion of the treated product stream. The COS regeneration column provides increased contact and residence time.

    Abstract translation: 已经开发了用于从烃流中除去羰基硫(COS)的方法和装置。 该设计允许将再生流中的COS除去至低于10wppm,即使在高浓度的COS下,废床也可以使用一部分处理过的产物流进行再生。 COS再生柱提供增加的接触和停留时间。

    PROCESSES AND APPARATUSES FOR REMOVING MERCAPTANS FROM A FEED STREAM
    6.
    发明申请
    PROCESSES AND APPARATUSES FOR REMOVING MERCAPTANS FROM A FEED STREAM 审中-公开
    从进料流中移除梅费尔坦的方法和装置

    公开(公告)号:US20150034529A1

    公开(公告)日:2015-02-05

    申请号:US13956081

    申请日:2013-07-31

    Applicant: UOP LLC

    CPC classification number: C10G19/08 C10G19/02

    Abstract: Processes and apparatuses for removing mercaptans from feed streams are provided. In one embodiment, a process for removing mercaptans from a feed stream includes extracting mercaptans and a polymeric precursor from the feed stream with a caustic solvent to form a polymeric precursor rich spent caustic solvent. The polymeric precursor rich spent caustic solvent is contacted with a polymeric precursor-deficient hydrocarbon stream in a multistage vessel and the polymeric precursor is extracted from the polymeric precursor rich spent caustic solvent to form a treated spent caustic solvent. The process contacts the treated spent caustic solvent with oxygen and oxidizes the mercaptans to disulfides to form an oxidized caustic solvent stream. The process includes separating the oxidized caustic solvent stream into an offgas stream, a disulfide stream, and a caustic solvent stream.

    Abstract translation: 提供了用于从进料流中除去硫醇的方法和装置。 在一个实施方案中,从进料流中除去硫醇的方法包括用苛性溶剂从进料流中提取硫醇和聚合物前体,以形成富含聚合物前体的废碱溶剂。 将富含聚合物前体的废碱溶剂与多级容器中的聚合物前体缺陷烃流接触,并且从富含聚合物前体的废碱溶剂中提取聚合物前体以形成经处理的废碱溶剂。 该方法用氧接触经处理的废碱溶剂,并将硫醇氧化成二硫化物以形成氧化的苛性碱溶剂流。 该方法包括将氧化的苛性碱溶剂流分离成废气流,二硫化物流和苛性溶剂流。

    Process for oxidizing one or more thiol compounds and subsequent separation in a single vessel

    公开(公告)号:US10435362B2

    公开(公告)日:2019-10-08

    申请号:US15808609

    申请日:2017-11-09

    Applicant: UOP LLC

    Abstract: One exemplary embodiment can be a process for oxidizing one or more thiol compounds from an alkaline stream. The process may include passing a mixed stream having the alkaline stream to a vessel having an oxidation section, a separation section and a vent gas section. Often, the oxidation section includes a body containing one or more packing elements. The process can further include passing an oxidized alkaline stream to the separation section containing a first chamber and a second chamber. Usually, the first chamber contains a coated mesh and packing. The two sections further form a neck contains a packing, a distributor, and a mesh.

    Process for oxidizing one or more thiol compounds

    公开(公告)号:US10343987B2

    公开(公告)日:2019-07-09

    申请号:US15863752

    申请日:2018-01-05

    Applicant: UOP LLC

    Abstract: A process and apparatus for oxidizing thiol compounds from an alkaline stream. The process includes passing a thiol rich alkaline stream and an oxygen containing gas to a low pressure oxidizing zone to oxidize at least a portion of the thiol compounds to disulfide compounds. A liquid stream comprising the alkali containing the disulfide compounds is passed through a pump to increase the pressure and form a pressurized alkaline stream. The pressurized alkaline stream and a sulfur lean liquid light hydrocarbon stream are introduced to a high pressure disulfide separation vessel to form a sulfur lean alkaline stream and a sulfur rich liquid light hydrocarbon stream.

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