分子筛重芳烃加氢脱烷基催化剂研究进展

发布时间：2018-01-08 17:22

本文关键词：分子筛重芳烃加氢脱烷基催化剂研究进展　出处：《无机盐工业》2017年06期 　论文类型：期刊论文

【摘要】：采用催化加氢脱烷基技术将重芳烃转化生成苯、甲苯、二甲苯(合称BTX)等基本石油化工产品,是提高重芳烃利用率的重要途径。综述了分子筛催化剂在重芳烃催化加氢脱烷基反应中的研究进展,详细分析了各种分子筛催化剂的优缺点,并对分子筛催化剂的发展趋势进行了探讨。提出目前的重点是开发和应用新型大孔结构纳米分子筛、多级孔结构复合分子筛以及新的催化剂改性方法,通过优化组合金属组分提高催化剂的活性、稳定性、选择性及抗积炭能力。尤其针对含有更多C_(10)以上组分重芳烃原料,开发反应性能好、抗积炭性能强的重芳烃轻质化催化剂是未来研究工作的重中之重。
[Abstract]:Dealkylation technology will generate heavy aromatics by catalytic hydrogenation of benzene, toluene, xylene (BTX) and other basic petrochemical products, is an important way to improve the utilization of heavy aromatics are reviewed. Research progress of molecular sieve catalyst and alkyl reaction in heavy aromatics catalytic hydrogenation, a detailed analysis of the advantages and disadvantages of various molecular sieve the catalyst, and the molecular sieve catalyst development tendency were discussed. The focus is on the development and application of a new type of macroporous structure nano molecular sieve, and new catalysts modified method of multistage pore structure composite molecular sieve, by optimization of metal components improve the catalytic activity, stability, selectivity and anti coking ability. Especially for containing more C_ (10) components above heavy aromatic raw materials, the development of good reaction performance, light aromatics catalyst, strong resistance to carbon deposition is the future research work priority among priorities.

【作者单位】：中海石油炼化有限责任公司惠州炼化分公司;中海油天津化工研究设计院有限公司;
【分类号】：TE624.9
【正文快照】： 石油重芳烃是指含有9(或10)个碳原子及以上芳烃的总称,这些芳烃来自催化加工或热加工所得的石油芳烃产品中,其沸点范围在150~250℃,是生产精细化学品的宝贵原料[1]。长期以来,重芳烃资源没有得到合理利用,除少量用作溶剂和提取单体芳烃外,主要被用于汽油调和或作为低价燃料烧

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