کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
40207 45845 2014 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh–Pd content on the ring opening. Part II. Selective ring opening of methylcyclohexane
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی کاتالیزور
پیش نمایش صفحه اول مقاله
Influence of the Brønsted acidity, SiO2/Al2O3 ratio and Rh–Pd content on the ring opening. Part II. Selective ring opening of methylcyclohexane
چکیده انگلیسی


• Methylcyclohexane ring opening using Rh–Pd supported on SiO2/Al2O3 was studied.
• Total and the Brønsted acidity have a higher influence on the activity for decalin ring opening than for single ring opening.
• The influence of the metal charge is more important on the reaction of MCH.
• All the catalysts display a high MCH conversion which increases with the reaction temperature.
• Catalysts with Rh/Pd = 2 and monometallic Rh1 supported on SIRAL 40 has the highest yield to ring opening products.

Monometallic and bimetallic Pd–Rh catalysts with various Rh/Pd atomic ratios (=0.5, 1 and 2) and a total metal charge of 1 wt% supported on SiO2–Al2O3 (SIRAL 40, 20, 5) were studied for the ring opening of methylcyclohexane (MCH). The results were compared with those obtained previously for ring opening of decalin. It was found that the total acidity and the Brønsted acidity of the support have a higher influence on the activity for ring opening of naphthenic bicycles than on the activity for opening single rings. The influence of the metal charge is more important on the reaction of MCH. All the catalysts display a high MCH conversion, which increases with the reaction temperature. The bimetallic catalyst with the Rh/Pd ratio equal to 2 and supported on SIRAL 40 has the highest yield to ring opening products.

Figure optionsDownload high-quality image (171 K)Download as PowerPoint slide

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Catalysis A: General - Volume 469, 17 January 2014, Pages 541–549
نویسندگان
, , , , ,