Processing alkali metal-sulfide or alkali earth metal-sulfide to obtain the alkali metal or alkali earth metal

    公开(公告)号:US10519386B2

    公开(公告)日:2019-12-31

    申请号:US15527110

    申请日:2016-05-24

    发明人: Ashok V Joshi

    摘要: Applying a sufficient quantity of an Alkali metal or an Alkaline earth metal to a fluid in a stripping process loop 106 to form a first intermediary compound and thereby, to strip the undesired element from the process fluid 102. The first intermediary compound 130 is processed in a recovery process loop 110 to recover the Alkali metal or Alkaline earth metal. The recovered Alkali metal or Alkaline earth metal is then re-introduced to an additional quantity of process fluid to strip and clean the undesired element from the additional quantity of the process fluid. A recovery process loop 110 may include either or both of a chemical substitution process, and an electrolytic process, effective to separate the Alkali metal or Alkaline earth metal from the undesired element or another compound.

    Process for removing oxygenates from hydrocarbon streams

    公开(公告)号:US10160921B2

    公开(公告)日:2018-12-25

    申请号:US15901550

    申请日:2018-02-21

    发明人: Jan Dierickx

    摘要: A system for removing oxygenates from a hydrocarbon stream includes a caustic wash unit comprising a plurality of caustic wash loops, and a hydrogenation reactor. The hydrogenation reactor is configured to receive a first gaseous stream from a first caustic wash loop of the plurality of caustic wash loops and pass a second gaseous stream from the hydrogenation reactor to a second caustic wash loop of the plurality of caustic wash loops, wherein the hydrogenation reactor comprises a sulfided catalyst.

    Process for removing oxygenates from hydrocarbon streams

    公开(公告)号:US09926498B2

    公开(公告)日:2018-03-27

    申请号:US15164576

    申请日:2016-05-25

    发明人: Jan Dierickx

    摘要: A method of removing oxygenates from a hydrocarbon stream comprises passing a hydrocarbon stream to a caustic tower having a plurality of loops, contacting the hydrocarbon stream with a sulfided catalyst between a first loop of the plurality of loops and a second loop of the plurality of loops to produce a reaction product, passing the reaction product to the second loop, removing at least a portion of the hydrogen sulfide in the second loop of the caustic tower to produce a product stream, and separating the product stream into a plurality of hydrocarbon streams in a separation zone located downstream of the caustic tower. The hydrocarbon stream comprises hydrocarbons, oxygen containing components, and sulfur containing compounds. At least a portion of the sulfur compounds react in the presence of the sulfided catalyst to produce hydrogen sulfide in the reaction product.

    METHOD OF PREVENTING CORROSION OF OIL PIPELINES, STORAGE STRUCTURES AND PIPING

    公开(公告)号:US20160369176A9

    公开(公告)日:2016-12-22

    申请号:US13770610

    申请日:2013-02-19

    IPC分类号: C10G29/04

    摘要: Corrosion of ferrous material such as steel or stainless steel is a problem in oil pipelines, oil storage tanks, and the piping and process equipment at oil refineries, and this corrosion may be reduced by reducing the TAN value of the oil feedstock that is used/transported within the ferrous material. This TAN value may be reduced by reacting the oil feedstock with an alkali metal, thereby forming a de-acidified alkali metal. The de-acidified alkali metal has a TAN value of less than or equal to 1 mgKOH/g.