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Novel inexpensive transition metal phosphide catalysts for upgrading of pyrolysis oil via hydrodeoxygenation
Author(s) -
Guo Cheng,
Tirumala Venkateswara Rao Kasanneni,
Reyhanitash Ehsan,
Yuan Zhongshun,
Rohani Sohrab,
Xu Chunbao Charles,
He Sophia Quan
Publication year - 2016
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.15286
Subject(s) - hydrodeoxygenation , phosphide , catalysis , deoxygenation , molybdenum , chemistry , transition metal , pyrolysis , pyrolysis oil , yield (engineering) , hydrogen , chemical engineering , nuclear chemistry , materials science , inorganic chemistry , metallurgy , organic chemistry , selectivity , engineering
Supported molybdenum/molybdenum‐phosphides as inexpensive catalysts for bio‐oil hydrodeoxygenation (HDO) were in‐house prepared using different support materials, i.e., Al 2 O 3 , activated carbon (AC), MgAl 2 O 4 , and Mg 6 Al 2 (CO 3 )(OH) 16 . The HDO activity of these catalysts were investigated using a 100 mL bench‐scale reactor operating at 300°C with an initial hydrogen pressure of 50 bar for 3 h with a pyrolysis oil (PO). The catalytic efficiencies for bio‐oil HDO for the catalysts were compared with the expensive but commercially available Ru/C catalyst. Addition of small amount of P to the Mo catalysts supported on either AC and Al 2 O 3 led to increased degree of deoxygenation (DOD) and oil yield compared with those without P. MoP supported on AC (MoP/AC) demonstrated bio‐oil HDO activity comparable to the Ru/C catalyst. Furthermore, three AC‐supported metal phosphides for PO HDO were compared under the same conditions, and they were found to follow the order of NiP/AC > CoP/AC > MoP/AC. © 2016 American Institute of Chemical Engineers AIChE J , 62: 3664–3672, 2016