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In situ Generation of Ni Nanoparticles from Metal–Organic Framework Precursors and Their Use for Biomass Hydrodeoxygenation
Author(s) -
Čelič Tadeja Birsa,
Grilc Miha,
Likozar Blaž,
Tušar Nataša Novak
Publication year - 2015
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201403300
Subject(s) - hydrodeoxygenation , deoxygenation , hydrogenolysis , catalysis , nanoparticle , pyrolysis , biorefinery , biomass (ecology) , chemical engineering , hydrothermal liquefaction , lignocellulosic biomass , chemistry , raw material , materials science , selectivity , organic chemistry , lignin , nanotechnology , oceanography , geology , engineering
So far, in situ‐generated Ni nanoparticles have been reported to be efficient catalysts for tar cracking during wood liquefaction by pyrolysis. Herein, their performance in further bio‐oil conversion steps is evaluated. Nanoparticles were generated for the first time from a Ni‐containing metal–organic framework, MIL‐77, during the hydrotreatment of glycerol‐solvolyzed lignocellulosic (LC) biomass. Reactions were conducted at 300 °C and the H 2 pressure was 8 MPa in a slurry reactor. The catalytic activity and selectivity of the deoxygenation and hydrocracking reactions for real biomass‐derived feedstock using in situ‐generated nanoparticles was compared with Ni nanoparticles dispersed on a silica–alumina support (commercial Ni/SiO 2 –Al 2 O 3 catalyst). The mass activity of the in situ‐generated nanoparticles for hydrogenolysis was more than ten times higher in comparison to their commercial analogues, and their potential for the use in LC biorefinery is discussed.