Please use this identifier to cite or link to this item: http://scholarbank.nus.edu.sg/handle/10635/133134
Title: CONVERSION OF RENEWABLE CHITIN BIOMASS INTO VALUABLE CHEMICALS
Authors: CHEN XI
Keywords: Biomass; Biorefinery;Chitin; N-containing chemicals; Renewable; Catalysis
Issue Date: 1-Aug-2016
Source: CHEN XI (2016-08-01). CONVERSION OF RENEWABLE CHITIN BIOMASS INTO VALUABLE CHEMICALS. ScholarBank@NUS Repository.
Abstract: Among different types of biomass, ocean-based chitin biomass extracted from the exoskeletons of crustaceans is the world second most abundant biomass with a global reserve of 100 billion tons. So far, chitin derivatives have been extensively studied as functional polymers in the fields of biomedical, pharmaceutical, etc. Nevertheless, chitin utilization beyond this scope has scarcely been reported. In structure, chitin highly resembles that of cellulose, except the –OH group replaced by a –NH2 group on C2 position. Due to the structural similarity and the biologically-fixed nitrogen, it holds great potential to complement woody biomass for chemicals and offers unprecedented chances to expand the boundaries of biobased products for nitrogen-containing (N-containing) compounds. In this thesis, the new concept of chitin-based biorefinery was demonstrated. The thesis consisted of five projects including chitin dehydration, liquefaction, pretreatment, oxidation and deacetylation-hydrolysis. Each of them represents a novel transformation strategy of chitin into N-containing chemicals.
URI: http://scholarbank.nus.edu.sg/handle/10635/133134
Appears in Collections:Ph.D Theses (Open)

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