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JP2003327972A Process for producing high quality gasoline having low aromatic compound content 审中-公开
标题翻译：生产具有低芳族化合物含量的高品质汽油的方法
公开(公告)号：JP2003327972A
公开(公告)日：2003-11-19
申请号：JP2003114687
申请日：2003-04-18
申请人： Haldor Topsoe As , ハルドール・トプサー・アクチエゼルスカベット
发明人： HOUZVICKA JINDRICH , ZAVILLA JOHN , JAKSLAND CECILIA , HERBST KONRAD
IPC分类号： B01J23/652 , C10G17/06 , C10G17/07 , C10G17/095 , C10G35/06 , C10G35/095 , C10G45/54 , C10G59/00 , C10G59/02 , C10G65/04
CPC分类号： C10G59/02 , C10G2400/02
摘要： PROBLEM TO BE SOLVED: To provide a process for producing a high quality gasoline having a low aromatic compound content, especially a two step isomerization process for catalytically isomerizing a 4 to 12C paraffinic hydrocarbon fraction into multi-branched hydrocarbons. SOLUTION: This process for producing the high quality gasoline from a hydrocarbon feed flow containing a 4 to 12C hydrocarbon fraction or linear paraffin middle cut, naphtha, aromatic compounds and olefins is characterized by sequentially performing two isomerization steps comprising the first isomerization step for subjecting the fed materials to the first isomerization reaction in the presence of a noble metal-containing solid acid state first catalyst which is effective for converting the linear paraffins into the mono-branched isomers and for saturating the aromatic compounds into the saturated cyclic hydrocarbons, and the second isomerization step for converting the mono- branched isomers in the effluent into the multi-branched isomers in the presence of the second catalyst having a Hammett's acidity lower than -10 at a temperature up to 100°C and lower by at least 50°C than the temperature of the first step, thus enhancing the concentration of the multi-branched isomers. COPYRIGHT: (C)2004,JPO
摘要翻译：要解决的问题：提供一种具有低芳族化合物含量的高质量汽油的方法，特别是用于将4至12C链烷烃级分催化异构化为多支化烃的两步异构化方法。解决方案：用于由含有4至12℃烃馏分或线性链烷烃中间馏分，石脑油，芳族化合物和烯烃的烃进料流产生高品质汽油的方法的特征在于依次进行两个异构化步骤，包括第一异构化步骤在含有贵金属的固体酸状态的第一催化剂存在下进行第一异构化反应，该催化剂有效地将线性链烷烃转化为单支链异构体并将芳族化合物饱和为饱和环状烃，和第二异构化步骤，用于在第二种催化剂存在下，将流出物中的单支化异构体转化为多支链异构体，其中哈米特酸的酸度低于-10℃，温度高达100℃，并降低至少50 ℃比第一步温度高，从而提高多支链异构体的浓度。版权所有（C）2004，JPO

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