Selective hydrogenation of crude high-butadiene C4 cuts
    2.
    发明授权
    Selective hydrogenation of crude high-butadiene C4 cuts 失效
    粗选择性氢化粗丁二烯C4切割

    公开(公告)号:US5227553A

    公开(公告)日:1993-07-13

    申请号:US887038

    申请日:1992-05-22

    摘要: A process for the selective hydrogenation of butadiene to butenes in the liquid phase or trickle phase in contact with a fixed-bed supported noble metal catalyst, wherein a high-butadiene C.sub.4 stream having a butadiene content of from 20 to 80% w/w, based on the weight of the C.sub.4 stream, is hydrogenated in a cascade of two reaction zones such that the hydrogenation product from the first reaction zone has a butadiene content of from 0.1 to 20% w/w and the hydrogenation product from the second reaction zone has a butadiene content of from 0.005 to 1% w/w, based in both cases on the weight of the C.sub.4 stream, provided that the butadiene content of the hydrogenation product from the second reaction zone is at least 5 times smaller than that of the hydrogenation product from the first reaction zone.

    摘要翻译: 在与固定床负载的贵金属催化剂接触的液相或滴流相中将丁二烯选择性氢化成丁烯的方法,其中丁二烯含量为20〜80%w / w的高丁二烯C4流, 基于C4流的重量,在两个反应区的级联中氢化,使得来自第一反应区的氢化产物的丁二烯含量为0.1至20%w / w,来自第二反应区的氢化产物 丁二烯含量为0.005-1%w / w,两种情况都基于C4流的重量,条件是来自第二反应区的氢化产物的丁二烯含量至少比 来自第一反应区的氢化产物。

    FUEL ADDITIVES WITH IMPROVED MISCIBILITY AND REDUCED TENDENCY TO FORM EMULSIONS
    4.
    发明申请
    FUEL ADDITIVES WITH IMPROVED MISCIBILITY AND REDUCED TENDENCY TO FORM EMULSIONS 审中-公开
    燃料添加剂具有改进的混杂性和降低形式的乳化趋势

    公开(公告)号:US20130091762A1

    公开(公告)日:2013-04-18

    申请号:US13708374

    申请日:2012-12-07

    IPC分类号: C10L1/22

    摘要: This invention relates to an additive package containing an organic solvent, a detergent additive and a reaction product mixture obtained by reacting a carboxylic acid compound of formula (I): R1COOR2 with an alkanol amine of formula (II): NHR3R4 to form a reaction product containing a polysubstituted alkanol amine derivative, where the reaction is performed by: (a) heating the carboxylic acid of formula (I) to a first temperature; (b) adding thereto the alkanol amine of formula (II) under controlled conditions avoiding an increase of temperature above the first temperature range; (c) maintaining temperature in the first temperature range; and (d) increasing the temperature of the reaction mixture to a second temperature in a second temperature range of 160 to 210° C. and allowing further reaction of residual free carboxylic acid molecules with any reactive group in the reaction mixture.

    摘要翻译: 本发明涉及含有有机溶剂,洗涤剂添加剂和通过使式(I)的羧酸化合物:R1COOR2与式(II)的链烷醇胺:NHR 3 R 4反应形成反应产物而得到的反应产物混合物的添加剂包 含有多取代的烷醇胺衍生物,其中反应通过以下步骤进行:(a)将式(I)的羧酸加热至第一温度; (b)在控制条件下加入式(II)的链烷醇胺,避免温度升高至高于第一温度范围; (c)将温度保持在第一温度范围内; 和(d)在160至210℃的第二温度范围内将反应混合物的温度升至第二温度,并允许残余游离羧酸分子与反应混合物中的任何反应性基团进一步反应。