By Mizuho Yabushita
The subject of this thesis is catalytic conversion of
non-food, considerable, and renewable biomass equivalent to cellulose and chitin to
chemicals. In biorefinery, chemical transformation of polymers to valuable
compounds has attracted all over the world curiosity for development sustainable societies.
First, the present state of affairs of this sizzling learn zone has been summarized well
in the final advent of the thesis, which is helping readers to become
familiar with this subject. subsequent, the writer explains high-yielding construction of
glucose from cellulose by utilizing an alkali-activated carbon as a catalyst,
resulting in a yield of glucose as excessive as 88%, that is one of many highest
yields ever stated. The characterization of carbon fabrics has indicated
that susceptible acid websites at the catalyst advertise the response, that is markedly
different from suggested catalytic structures that require robust acids. In
addition, the 1st catalytic transformation of chitin with retention of N-acetyl teams has been built. The
combination of mechanocatalytic hydrolysis and thermal solvolysis allows the
production of N-acetylated monomers in
good yields of as much as 70%. The catalytic structures verified during this thesis are
unique within the fields of either chemistry and chemical engineering, and their high
efficiencies can give a contribution to eco-friendly and sustainable chemistry within the future.
Meanwhile, mechanistic stories in accordance with characterization, thermodynamics,
kinetics, and version reactions have additionally been played to bare the jobs of
catalysts through the reactions. the consequences should be important for readers to
design and boost new catalysts and response systems.
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