Mushtaq, Umair published the artcileHigh-Yield Production of Deoxygenated Monomers from Kraft Lignin over ZnO-Co/N-CNTs in Water, HPLC of Formula: 645-56-7, the publication is ACS Sustainable Chemistry & Engineering (2021), 9(8), 3232-3245, database is CAplus.
Catalytic conversion of tech. lignin to value-added chems. and fuels is important for realizing economically viable lignocellulosic biomass refineries. The choice of catalysts and solvents is critical for the effective conversion of the tech. lignin to chems. and fuels by the cleavage of the C-C bonds. In this study, catalytic depolymerization and hydrodeoxygenation of Kraft lignin (KL) were investigated over bimetallic ZnO and Co deposited on N-doped carbon nanotubes (ZnO-Co/N-CNTs) in an aqueous medium. The catalytic activity of ZnO-Co/N-CNTs was compared with those of various noble and non-noble metal-based catalysts. Almost complete KL conversion with a very low solid residue yield (5 wt %), a high bio-oil yield (52 wt %), a high degree of deoxygenation (DOD, 59.0%), and a high monomeric yield (12.1 wt %) was achieved over ZnO-Co/N-CNTs at 350°C and 6 h reaction time. The monomers mainly consisted of cyclohexanone and its alkyl-substituted derivatives and alkylated phenols. At 400°C, the monomeric yield and DOD increased to 24.4 wt %and 61.0%, resp. In addition, the produced bio-oil exhibited high-calorific values of 34.3-37.0 MJ kg-1 because of the high activity of ZnO-Co/N-CNTs for hydrodeoxygenation. ZnO-Co/N-CNTs outperformed most of the metal-supported catalysts including 5 wt % Pd, 5 wt % Ru, 5 wt % Pt, 66 wt % Ni, and CoMo on various supports of activated carbon and alumina. The use of water as the solvent resulted in much higher bio-oil and monomeric yields than those using methanol, iso-Pr alc., and n-hexane (12-37 and 3.2-4.1 wt %, resp.). The high bio-oil and monomeric yields with a high DOD in water make ZnO-Co/N-CNTs highly attractive in the development of an environmentally friendly tech. lignin conversion process.
ACS Sustainable Chemistry & Engineering published new progress about 645-56-7. 645-56-7 belongs to alcohols-buliding-blocks, auxiliary class Liquid Crystal &OLED Materials, name is 4-Propylphenol, and the molecular formula is C9H12O, HPLC of Formula: 645-56-7.
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