Journal
MATERIALS RESEARCH BULLETIN
Volume 96, Issue -, Pages 149-154Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2017.05.002
Keywords
Microporous materials; Metals; Chemical synthesis; Catalytic properties; Diffusion
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Funding
- Korean Institute of Energy Technology Evaluation and Planning [20122010200050]
- Korea Evaluation Institute of Industrial Technology (KEIT) [20122010200050] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
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Selective ring opening of multi-ring aromatics is a potential route for the production of valuable middle distillates from heavy oil, but a bi-functional (acidic and metallic) catalyst is required. We report here the use of mesoporous HY zeolites with variation of their mesoporosity to overcome diffusion resistance for bulky aromatics. NiW was impregnated on acidic zeolites for the metallic function of the bi-functional catalyst. To investigate the mesoporosity effect on selective ring opening, phenanthrene was selected as a model compound for multi-ring aromatics, and its reaction was conducted in a batch reactor. The introduction of moderate mesoporosity into an HY zeolite resulted in a noticeable effect on the yields of desirable mono-ring aromatics due to the easier accessibility of bulky reactants into the inner active sites of the zeolite. The mesoporosity of the catalyst seems to play an important role in the selective ring opening of phenanthrene but the optimum level should be determined. (C) 2017 Elsevier Ltd. All rights reserved.
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