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    • 2. 发明授权
    • High selectivity process for dehydrogenation of paraffinic hydrocarbons
    • 链烷烃脱氢的高选择性方法
    • US4761509A
    • 1988-08-02
    • US17964
    • 1987-02-24
    • Bipin V. VoraDaniel L. Ellig
    • Bipin V. VoraDaniel L. Ellig
    • C07C5/333C07C11/02C07C5/00
    • C07C11/02C07C5/3337
    • An improved process for the catalytic dehydrogenation of paraffinic hydrocarbons is disclosed. Feed paraffinic hydrocarbons are dehydrogenated to yield an olefin containing vapor stream which is partially condensed to produce a liquid phase process stream which contains byproduct diolefins along with the intended product monoolefins. The liquid phase process stream in admixture with hydrogen and a sulfur compound is passed through a selective hydrogenation zone in which diolefins are catalytically converted to monoolefins. This selective hydrogenation in the presence of trace quantities of a sulfur compound increases the quality of the product monoolefin stream. The selective hydrogenation zone is located between the vapor-liquid separator and the stripper column of the dehydrogenation zone.
    • 公开了一种用于链烷烃的催化脱氢的改进方法。 进料链烷烃被脱氢以产生含烯烃的蒸气流,其部分冷凝以产生液相工艺流,其中含有副产物二烯烃以及预期的产物单烯烃。 将与氢气和硫化合物混合的液相工艺流通过选择性氢化区,其中二烯烃被催化转化成单烯烃。 在微量硫化合物的存在下的这种选择性氢化增加了产物单烯烃流的质量。 选择性加氢区位于气液分离器和脱氢区的汽提塔之间。