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A Study on Catalytic Conversion of Non-Food Biomass into by Mizuho Yabushita

By Mizuho Yabushita

The subject of this thesis is catalytic conversion of non-food, ample, and renewable biomass similar to cellulose and chitin to chemical compounds. In biorefinery, chemical transformation of polymers to necessary compounds has attracted all over the world curiosity for development sustainable societies. First, the present state of affairs of this scorching learn quarter has been summarized good within the basic creation of the thesis, which is helping readers to get to grips with this subject. subsequent, the writer explains high-yielding creation of glucose from cellulose through the use of an alkali-activated carbon as a catalyst, leading to a yield of glucose as excessive as 88%, that is one of many optimum yields ever mentioned. The characterization of carbon fabrics has indicated that vulnerable acid websites at the catalyst advertise the response, that's markedly assorted from stated catalytic platforms that require robust acids. furthermore, the 1st catalytic transformation of chitin with retention of N-acetyl teams has been built. the combo of mechanocatalytic hydrolysis and thermal solvolysis allows the construction of N-acetylated monomers in stable yields of as much as 70%. The catalytic structures verified during this thesis are distinctive within the fields of either chemistry and chemical engineering, and their excessive efficiencies can give a contribution to eco-friendly and sustainable chemistry sooner or later. in the meantime, mechanistic reports in accordance with characterization, thermodynamics, kinetics, and version reactions have additionally been played to bare the jobs of catalysts in the course of the reactions. the implications should be valuable for readers to layout and advance new catalysts and response systems.

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8 MPa [184]. In this case, sorbitol and mannitol yields were 30 and 8 %, respectively (entry 45). 2 Cellulose 25 Fig. 20 Hydrolytic transfer-hydrogenation of cellulose to sorbitol using 2-propanol as a hydrogen source Fig. 9 MPa of H2 pressure by optimizing pretreatment and reaction conditions (entry 46) [185]. 7 MPa (entry 47) [112]. The hydrolytic transfer-hydrogenation of cellulose to sorbitol (Fig. 20) was promoted by Ru/AC catalyst (entries 48 and 49) [184]. Other supports (TiO2, ZrO2, and Al2O3) or metals (Rh, Ir, Pd, Pt, and Au) were inactive for this reaction.

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