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    • 96. 发明公开
    • HYDROPROCESSING METHODS AND APPARATUS FOR USE IN THE PREPARATION OF LIQUID HYDROCARBONS
    • 用于制备液态烃的加氢处理方法和装置
    • EP1740678A2
    • 2007-01-10
    • EP05723082.3
    • 2005-02-15
    • ConocoPhillips Company
    • GOPALAKRISHNAN, SridharMELQUIST, Vincent, H.ESPINOZA, Rafael, L.
    • C10G47/00
    • C10G65/00C10G2400/04
    • The present invention is generally related towards enhancing the yield and/or cold-flow properties of certain hydrocarbon products, increasing the degree of isomerization in a diesel product and/or increasing the production rate of a diesel product. The embodiments generally include reducing the residence time of lighter hydrocarbon fractions during hydrocracking, thereby decreasing secondary cracking, by various configurations of introducing at least two hydrocarbon feedstreams of different boiling ranges at different entry points in a hydrocracking unit. A method further includes forming a hydrocarbons stream comprising primarily C5+ Fischer-Tropsch hydrocarbon products; fractionating hydrocarbons stream to form at least a wax fraction and an intermediate fraction which serve as separate feedstreams to a hydrocracking unit comprising at least two hydroconversion zones. One embodiment comprises the use of a bifunctional catalyst in one of the hydrocracking zones so as to favor hydroisomerization of hydrocarbons to favor the formation of branched paraffins boiling in the diesel range.
    • 本发明总体上涉及提高某些烃产物的产率和/或冷流性质,增加柴油产物中的异构化程度和/或提高柴油产物的产率。 实施方式通常包括通过在加氢裂化装置的不同入口点处引入至少两种不同沸程的烃进料流的各种构造来减少加氢裂化期间较轻烃馏分的停留时间,由此减少二次裂化。 一种方法还包括形成主要包含C5 +费 - 托烃产物的烃物流; 分馏烃物流以形成至少一个蜡馏分和一个中间馏分,其作为分开的进料流到达包含至少两个加氢转化区的加氢裂化单元。 一个实施方案包括在一个加氢裂化区中使用双功能催化剂,以促进烃的加氢异构化以有利于形成沸点在柴油范围内的支化链烷烃。