Method of removing contaminants from petroleum distillates
    62.
    发明授权
    Method of removing contaminants from petroleum distillates 有权
    从石油馏分中除去污染物的方法

    公开(公告)号:US06929737B2

    公开(公告)日:2005-08-16

    申请号:US09753496

    申请日:2001-01-02

    Abstract: In a method of removing acidic compounds, color, and polynuclear aromatic hydrocarbons, and for removing or converting hydrocarbons containing heteroatoms from petroleum distillates, phase transfer catalyst is employed to facilitate the transfer of inorganic or organic bases to the substrate of the distillate. An inorganic or organic base, a phase transfer catalyst selected from the group including quaternary ammonium salts, polyol ethers and crown ethers, and used oil distillate are mixed and heated. Thereafter, contaminants are removed from the used oil distillate through distillation. A solvent is then mixed with the resulting distillate to extract contaminants therefrom. The solvent is recovered and distilled to separate the contaminants therefrom, and is then reused. The petroleum distillate having the contaminants separated therefrom is also distilled to remove any remaining solvent therefrom, with the recovered solvent being reused.

    Abstract translation: 在除去酸性化合物,颜色和多环芳烃并且用于从石油馏出物中除去或转化含有杂原子的烃的方法中,使用相转移催化剂促进无机或有机碱转移到馏出物的底物。 将无机或有机碱,选自包括季铵盐,多元醇醚和冠醚的相转移催化剂和使用的油馏分混合并加热。 此后,通过蒸馏从废油馏分中除去污染物。 然后将溶剂与所得馏出物混合以从其中提取污染物。 回收溶剂并蒸馏以分离其中的污染物,然后重新使用。 从其中分离有污染物的石油馏出物也被蒸馏以从其中除去任何剩余的溶剂,回收的溶剂被再利用。

    Dynamic mixer process with continuous caustic phase for removal of
elemental sulfur from organic fluids
    64.
    发明授权
    Dynamic mixer process with continuous caustic phase for removal of elemental sulfur from organic fluids 失效
    具有连续苛性相的动态混合器工艺,用于从有机流体中去除元素硫

    公开(公告)号:US5674378A

    公开(公告)日:1997-10-07

    申请号:US660585

    申请日:1996-06-11

    CPC classification number: C10G19/04 C10G19/02

    Abstract: The present invention is directed to a process for the removal of elemental sulfur from fluids such as fuels, e.g. gasoline, kerosene, diesel or jet, by contacting said fluids with an immiscible treatment solution comprising water or immiscible alcohol, caustic, sulfide or hydrosulfide and optionally mercaptan, in a staged co-current mixer under conditions such that the immiscible treatment solution constitutes the continuous phase.

    Abstract translation: 本发明涉及一种从诸如燃料等流体中除去元素硫的方法。 汽油,煤油,柴油或喷气,通过在分级共流混合器中使所述流体与包含水或不混溶的醇,苛性碱,硫化物或氢硫化物和任选的硫醇的不混溶的处理溶液接触,使得不混溶的处理溶液构成连续的 相。

    Purification process
    65.
    发明授权
    Purification process 失效
    净化过程

    公开(公告)号:US4251492A

    公开(公告)日:1981-02-17

    申请号:US57153

    申请日:1979-07-12

    Applicant: Alan Marshall

    Inventor: Alan Marshall

    CPC classification number: C10G19/04 B01D53/1493 B01D53/52 C10K1/128

    Abstract: A process for the removal of hydrogen sulphide from gases or liquid hydrocarbons, comprising contacting the gas or liquid hydrocarbon with an aqueous alkaline solution, preferably having a pH value of 8 to 10, comprising(a) an anthraquinone disulphonic acid or a water-soluble sulphonamide thereof(b) a compound of a metal which can exist in at least two valency states and(c) a sequestering agent comprising a compound of formula I: ##STR1## wherein R is an aliphatic residue containing from 1 to 12 carbon atoms and which is optionally substituted or interrupted by one or more hydroxy, or carboxyl groups; a carbonyl group, a phenyl group; or an aralkyl group containing 7 to 10 carbon atoms; and n is an integer of from 1 to 4; as well as salts, especially alkali metal and ammonium salts, and esters of compounds of formula I.

    Abstract translation: 一种从气体或液体烃中除去硫化氢的方法,包括使气体或液体烃与碱性水溶液接触,优选pH值为8至10,包括(a)蒽醌二磺酸或水溶性 磺酰胺(b)可以以至少两个价态存在的金属化合物和(c)包含式I化合物的螯合剂:其中R是含有1至12个碳原子的脂族残基 并且其任选被一个或多个羟基或羧基取代或中断; 羰基,苯基; 或含有7〜10个碳原子的芳烷基; n为1〜4的整数, 以及盐,特别是碱金属和铵盐,以及式I化合物的酯。

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