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    • 4. 发明申请
    • METHOD FOR PRODUCING BENZENE FROM BENZENE AND /OR ALKYLBENZENE-CONTAINING MIXTURES HAVING A HIGH CONTENT OF SULPHUR-CONTAINING SUBSTANCES
    • 从具有高含量含硫物质的苄苯和/或含烷氧基苯的混合物生产苯并噻唑的方法
    • WO2004037755A1
    • 2004-05-06
    • PCT/RU2002/000467
    • 2002-10-24
    • C07C15/04
    • C07C4/14C07C4/16C10G2400/30C07C15/04
    • The invention relates to the petrochemical industry, in particular to methods for producing benzene from different benzene and /or alkylbenzene-containing mixtures produced by various oil or cocking products processing. The inventive method consists in hydrodealkylating said fractions and in returning the product to a hydrodealkylation stage for recycling. A highly aromatic fraction having a high content of sulphur-containing substances, preferably not higher than 1.5 mass% of sulphur, and a C 6-C15 aromatic compositions content equal to or higher than 60 mass% is supplied to said recycling in a quantity at which a total content of sulphur-organic substances at the output of a hydrodealkylation reactor is equal or less than an admissible value which is defined by the capacities of a scheme for further desulphuration of a final product.
    • 本发明涉及石油化学工业,特别是涉及由各种油或起泡产物加工生产的不同苯和/或烷基苯混合物生产苯的方法。 本发明的方法包括加氢脱烷基化所述级分并将产物返回到加氢脱烷基阶段进行再循环。 将具有高含量物质,优选不高于1.5质量%的硫和C 6 -C 15芳族组成含量等于或高于60质量%的高芳族馏分供给到所述循环中, 其中加氢脱烷基反应器的输出中的总有机物含量等于或小于由最终产品进一步脱硫方案的容量确定的允许值。