PROCESS FOR REMOVING SULPHUR COMPOUNDS FROM HYDROCARBONS
    3.
    发明公开
    PROCESS FOR REMOVING SULPHUR COMPOUNDS FROM HYDROCARBONS 审中-公开
    从碳氢化合物中除去硫化合物的方法

    公开(公告)号:EP2970795A1

    公开(公告)日:2016-01-20

    申请号:EP14765605.2

    申请日:2014-03-14

    IPC分类号: C10G67/12 C10G27/00

    摘要: The present disclosure relates to a process for reducing the sulphur content of hydrocarbon feedstocks such as Natural Gas Condensate, Kerosene, Jet Fuel, Diesel, Vacuum Gas Oil and Fuel Oil. The process uses a tailored oxidation process comprising one or two oxidation steps to produce sulphoxides and/or sulphones. These sulphoxides and sulphones, while being still present in the liquid hydrocarbon streams, are subsequently extracted thereby producing a low sulphur hydrocarbon stream and optionally following further treatment of the sulphoxides and/or sulphones, produce a low sulphur aromatic hydrocarbon stream and an aqueous stream of sodium sulphite or sulphuric acid. The low sulphur hydrocarbon stream and low sulphur aromatic hydrocarbon stream may be individually recycled or combined for recycling.

    摘要翻译: 本公开涉及用于降低烃原料例如天然气冷凝物,煤油,喷气燃料,柴油,减压瓦斯油和燃料油的硫含量的方法。 该方法使用定制的氧化方法,其包括一个或两个氧化步骤以产生亚砜和/或砜。 然后将这些亚砜和砜同时存在于液态烃物流中,然后进行萃取,由此生成低硫烃物流,并任选地在进一步处理亚砜和/或砜之后,生成低硫芳族烃物流和 亚硫酸钠或硫酸。 低硫烃物流和低硫芳烃物流可以单独循环或组合循环使用。

    METHOD OF REGENERATING USED OILS BY MEANS OF EXTRACTION WITH SOLVENTS
    9.
    发明授权
    METHOD OF REGENERATING USED OILS BY MEANS OF EXTRACTION WITH SOLVENTS 有权
    METHOD FOR废油通过溶剂萃取再生

    公开(公告)号:EP1559768B1

    公开(公告)日:2006-04-26

    申请号:EP02751178.1

    申请日:2002-07-15

    IPC分类号: C10G19/02 C10G7/06

    摘要: The invention relates to a method of regenerating used oils of petroleum origin by means of extraction with aliphatic solvents. The inventive method is characterised in that, once the solvent has been eliminated from the extract, it comprises the following processes: a) flash vaporisation, in a continuous manner in the evaporator at atmospheric pressure or close thereto, in order to separate the light ends in the presence of small quantities of a basic compound or a reducing compound or a mixture of both; b) continuous distillation of the bottom liquid obtained in step a) in a vacuum and at a moderate temperatures in a fractionating column, in the presence of a basic compound or a reducing agent or a mixture of both and involving the recirculation from the bottom of the column to the feed of same. In this way, the vacuum gas oil or spindle oil and the lubricating bases are separated by means of lateral extractions while an asphaltic component or fuel oil is separated at the base.

    METHOD FOR THE PRETREATMENT OF A BIOFUEL FEEDSTOCK

    公开(公告)号:EP4417676A2

    公开(公告)日:2024-08-21

    申请号:EP24175387.0

    申请日:2021-07-30

    IPC分类号: C11B3/10

    摘要: In an aspect, a method is disclosed that includes contacting a composition with an aqueous solution to yield a mixture, where the composition includes one or more of animal fats, animal oils, plant fats, plant oils, vegetable fats, vegetable oils, greases, and used cooking oil, about 5 wt.% or more of free fatty acids, about 10 wppm or more of total metals, about 8 wppm or more phosphorus, about 20 wppm or more of nitrogen, and the aqueous solution includes ((NH4)2H2EDTA, (NH4)4EDTA, a monoammonium salt of diethylenetriaminepentaacetic acid, a diammonium salt of diethylenetriaminepentaacetic acid, a triammonium salt of diethylenetriaminepentaacetic acid, a tetraammonium salt of diethylenetriaminepentaacetic acid, (NH4)5DTPA, a combination of citric acid and Na4EDTA, a combination of citric acid and Na2H2EDTA, a combination of citric acid and a monosodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a disodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a trisodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and a tetrasodium salt of diethylenetriaminepentaacetic acid, a combination of citric acid and NasDTPA, or a combination of any two or more thereof, where the method further includes centrifuging the mixture to yield a first treated composition, wherein the first treated composition has less total metals and less phosphorus than the composition.