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公开(公告)号：US4795846A
公开(公告)日：1989-01-03
申请号：US103554
申请日：1987-10-01
IPC分类号： C07C20060101 , C10G20060101 , C10G35/095 , C10G35/06 , C07C2/52
CPC分类号： C10G35/095
摘要： An improved dehydrocyclization process for the selective conversion of light hydrocarbons to aromatics is presented. The activity of a catalyst containing nonacidic L-zeolite is greatly enhanced by the addition of water, water precursors, or mixtures thereof to the reaction zone during the dehydrocyclization reaction. Addition of between 10 and 100 wt. ppm H.sub.2 O results in a higher product yield of aromatics with increased product octane.
摘要翻译： 提出了将轻质烃选择性转化成芳族化合物的改进的脱氢环化方法。 通过在脱氢环化反应期间向反应区中加入水，水前体或其混合物，大大增强了含有非酸性L-沸石的催化剂的活性。 加入10至100wt。 ppm H2O导致芳族化合物产物产率提高，产物辛烷值增加。
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公开(公告)号：US5003118A
公开(公告)日：1991-03-26
申请号：US459402
申请日：1989-12-29
CPC分类号： C10G65/08
摘要： The benzene content in a gasoline pool is reduced by a process that hydrogenates a benzene-containing isomerization zone feedstream. In addition to reducing the benzene concentration, the hydrogenation zone is also used to heat the isomerization zone feed and thereby eliminate the need for an isomerization zone heater. The process employs mild saturation conditions which eliminates hydrocracking and prevents the loss of isoparaffin yield. Additional cyclic hydrocarbons produced by the saturation of benzene can be processed in the isomerization zone for ring opening to increase the available paraffinic feedstock or the isomerization zone can be operated to pass the cyclic hydrocarbons through to a product recovery section.
摘要翻译： 通过使含苯异构化区进料流氢化的方法，汽油池中的苯含量降低。 除了降低苯浓度外，氢化区也用于加热异构化区进料，从而不需要异构化区加热器。 该方法采用温和的饱和条件，其消除加氢裂化并防止异构烷烃产率的损失。 通过饱和苯产生的附加环状烃可以在用于开环的异构化区中加工，以增加可用的链烷烃原料，或者异构化区域可以操作以将环状烃通过到产物回收部分。
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