Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 263, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.apcatb.2019.118328
Keywords
Vegetable oil; Hydrotreatment; Deoxygenation; Molybdenum nitride; Molybdenum carbide; Molybdenum phosphide
Funding
- Ministry of Education, Youth and Sports of the Czech Republic (MEYS) [LH14325]
- National Sustainability Programme I of the MEYS through the project Development of the UniCRE Centre [L01606]
- MEYS [LM2015039]
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The catalytic activity of molybdenum carbide (MoCx), nitride (MoNx), and phosphide (MoPx) was compared in the hydrotreatment of rapeseed oil performed in a continuous fixed bed reactor at 350-390 degrees C, 5.5 MPa and various Weight Hourly Space Velocities (WHSV). The deoxygenation activity was in the following order: MoCx > MoNx > > MoPx. In the case of MoCx, the temperature increase resulted in a decrease of the deoxygenation activity due to the competitive hydrocracking. Wherein, MoNx showed the highest tendency to hydrocracking and very strong effect of WHSV at 350 degrees C, which then became less significant at higher reaction temperatures. While MoPx activity was strongly influenced by the mass transfer limitations.
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