C_(6)^(+)正构烷烃芳构化的研究进展  

Research progress on aromatization of C_(6)^(+)n-alkanes

作　　者：周秋明 王森[1] 秦张峰[1] 董梅[1] 王建国[1,2] 樊卫斌 ZHOU Qiu-ming;WANG Sen;QIN Zhang-feng;DONG Mei;WANG Jian-guo;FAN Wei-bin(State Key Laboratory of Coal Conversion,Institute of Coal Chemistry,Chinese Academy of Sciences,Taiyuan 030001,China;University of Chinese Academy of Sciences,Beijing 100049,China)

机构地区：[1]中国科学院山西煤炭化学研究所煤转化国家重点实验室,山西太原030001 [2]中国科学院大学,北京100049

出　　处：《燃料化学学报（中英文）》2023年第11期1529-1539,共11页Journal of Fuel Chemistry and Technology

基　　金：The project was supported by National Key R&D Plan (2020YFA0210900);National Natural Science Foundation of China (21991090, 21991092,22272195, U22A20431);Youth Innovation Promotion Association of Chinese Academy of Sciences (2021172)。

摘　　要：通过烷烃芳构化可将催化裂化汽油深度脱硫工艺和煤制油工艺中产生的大量低辛烷值饱和直链烷烃转化成芳烃,从而提升油品质量和芳烃产能,是制备芳烃的重要非石油路线,具有显著的社会经济价值。其中,C_(2)-C_5轻烃芳构化技术相对成熟,已进入到工业应用阶段;而针对C_(6)^(+)直链烷烃芳构化,由于反应过程复杂、多种基元反应相互竞争,导致芳烃收率偏低、催化剂易结焦失活。为此,本工作综述了近年来有关C_(6)^(+)正构烷烃芳构化的研究进展,重点讨论了C_(6)^(+)直链烷烃芳构化的反应机理以及单功能及双功能催化体系中金属位点分散度、电子状态及载体的酸性、形貌和孔道结构等对反应性能的影响。Conversion of saturated straight-chain alkanes generated in the deep desulfurization process of fluid catalytic cracking(FCC)gasoline and the coal-to-oil processes into aromatics via alkane aromatization is an important non-petroleum route for the preparation of aromatics that effectively improves the quality of oil.The aromatization technology of C2-C5 light C_(6)^(+)hydrocarbons is relatively mature and has been used in industry.However,for the aromatization of n-alkanes,the aromatics yield is still very low due to the complex reaction process and the competition of various elemental reactions.In addition,the catalysts usually suffer from rapid deactivation.In this work,we summarize the recent advances in the C_(6)^(+) C_(6)^(+)aromatization of n-alkanes.The reaction mechanism of aromatization of alkanes and the effects of the dispersion of metal sites,electronic state,and acidity,morphology and pore structure of the support on the catalytic performance are discussed in detail.

关 键 词：C_(6)^(+)正构烷烃芳构化 反应机理 单(双)功能催化剂 金属位点 载体 

分 类 号：O643[理学—物理化学]