LIQUID/LIQUID EXTRACTION OF HYDROCARBONS IN BULK STORAGE TANKS

    公开(公告)号:US20210261871A1

    公开(公告)日:2021-08-26

    申请号:US17181559

    申请日:2021-02-22

    摘要: Described herein are methods and systems for performing liquid-liquid extraction in bulk tankage. According to certain embodiments, the liquid-liquid extraction can occur in a bulk tank via a circulation loop, in which a solvent mixture is injected with the hydrocarbon ahead of mix valves on the circulation loop. According to other embodiments, a misting system is installed in the vapor or head space of bulk tankage. The misting system distributes small micro-drops of a solvent mixture so as to cause a uniform lay down over the entire top surface area of hydrocarbon. The solvent mixture migrates from the top surface of the hydrocarbon to the bottom of the bulk tank, reacting during migration to cause liquid-liquid extraction.

    REDUCTION OF ACIDS USING METAL NAPHTHENATE PRECIPITATION

    公开(公告)号:US20180201845A1

    公开(公告)日:2018-07-19

    申请号:US15722544

    申请日:2017-10-02

    发明人: Lin Li

    IPC分类号: C10G19/02 C10G57/00

    摘要: A process for reducing TAN of hydrocarbon feed oil, comprising: a. combining alkaline earth metal, in an aqueous solution having a pH of 10 to 14, with the hydrocarbon feed oil to make a mixture; b. vigorously mixing the mixture; c. precipitating a metal-naphthenate salt; and d. removing the metal-naphthenate salt to reduce the TAN by 50 to 100%; wherein a weight ratio of the hydrocarbon feed oil to the aqueous solution is from 0.25:1 to 20:1. Also, a process for reducing TAN, comprising: a. combining an inorganic alkaline earth metal salt having a water solubility at 20° C. from 35 to 150 g/100 g water, in an aqueous solution having a pH of 10 to 14, to make a mixture; b. precipitating a metal-naphthenate salt; c. collecting the metal-naphthenate salt at an interface between an oil phase and an aqueous phase; and d. removing the metal-naphthenate salt.