Binder effect on the catalytic activity of MoO3 bulk catalyst reduced by H-2 for n-heptane hydroisomerization

作者：Olivia Aleman Vazquez Laura; Hernandez Perez Fidencio; Luis Cano Dominguez Jose; Rodriguez Hernandez Andrea; Luis Garcia Gutierrez Jose

来源：Fuel, 2014, 117: 463-469.

DOI：10.1016/j.fuel.2013.08.085

• Hydroisomerization
• Molybdenum trioxide
• n-Heptane
• Catalysis
• Bulk catalyst

Two bulk catalysts containing about 70 wt.% of molybdenum trioxide and alumina or silica as binder were prepared by a gel method. They were characterized by X-ray diffraction, Raman spectroscopy, TGA in air and textural properties. The MoO3 bulk catalysts were activated in situ by reduction with hydrogen and tested in the hydroisomerization of n-heptane using a fixed bed continuous flow microreactor coupled to gas chromatograph. The highest catalytic activity for hydroisomerization was obtained with the alumina-based bulk catalyst, although the silica-based bulk catalyst showed lower amounts of cracking products and a higher selectivity to dimethylpentanes. The bulk catalysts resulted more active than MoO3 powder. The results indicate that the acid-base properties of the binder have a desirable effect on the acidity of the molybdenum trioxide powder as hydroisomerization catalyst.

• 出版日期2014-1