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1. 发明授权

US06479720B1 Alkylaromatic process using efficient prefractionation 失效
$Alkylaromatic process using efficient prefractionation$
标题翻译：使用有效的初步分选的烷基芳族工艺
公开(公告)号：US06479720B1
公开(公告)日：2002-11-12
申请号：US09474973
申请日：1999-12-29
申请人： Dennis E. O'Brien , Dennis H. Bielinski , Zhanping Xu
发明人： Dennis E. O'Brien , Dennis H. Bielinski , Zhanping Xu
IPC分类号： C07C15067
CPC分类号： C07C15/00
摘要： A process for the production of alkylaromatic hydrocarbons by alkylating aromatic hydrocarbons with linear olefinic hydrocarbons is disclosed. The linear olefinic hydrocarbons are produced by dehydrogenating linear paraffinic hydrocarbons which are extracted from a heartcut that is distilled from a kerosene boiling range fraction in either a dividing wall fractionation column or in two fully thermally coupled fractionation columns. The process significantly decreases the cost of utilities in producing alkylaromatic precursors for detergent manufacture.
摘要翻译：公开了通过用直链烯烃烷基化芳烃来生产烷基芳烃的方法。线性烯烃是通过从线性链烷烃脱氢制备的，所述线性链烷烃是从分裂壁分馏塔中的煤油沸程馏分或两个完全热耦合的分馏塔中蒸馏的心切出提取的。该方法显着降低了生产用于洗涤剂制造的烷基芳族前体的公用事业的成本。

2. 发明授权

US06682633B1 Apparatus for cocurrent fractional distillation 有权
$Apparatus for cocurrent fractional distillation$
标题翻译：并行分馏装置
公开(公告)号：US06682633B1
公开(公告)日：2004-01-27
申请号：US09748356
申请日：2000-12-22
申请人： Zhanping Xu , Dennis H. Bielinski
发明人： Zhanping Xu , Dennis H. Bielinski
IPC分类号： B01D314
CPC分类号： B01D3/16 , B01D3/146 , Y10S203/11
摘要： A modular apparatus for fractional distillation and other forms of vapor-liquid contacting is presented. The apparatus performs cocurrent contacting of vapor and liquid in a number of identical structural units which are placed in horizontal layers in a column or other enclosure. The structural units, or modules, are horizontally spaced apart in each layer to provide spaces for the downcomers from the modules of the next higher layer. The downcomers deliver the liquid to one of two inclined contacting channels, with the contacting channels discharging the vapor and liquid into separation chambers at the top of the module. Vapor flows upward from the separation chambers to the contacting channel of the next higher module and liquid flows down through a single central downcomer to the next lower contacting channel.
摘要翻译：提出了一种用于分馏和其他形式的气 - 液接触的模块化装置。该装置在多个相同的结构单元中进行蒸汽和液体的并流接触，这些结构单元被放置在柱或其它外壳中的水平层中。结构单元或模块在每个层中水平间隔开，以为下降管提供来自下一较高层的模块的空间。降液管将液体输送到两个倾斜接触通道中的一个，其中接触通道将蒸汽和液体排放到模块顶部的分离室。蒸汽从分离室向上流动到下一个更高模块的接触通道，液体向下流过单个中心降液管到下一个较低接触通道。

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