Comparison of the pyrolysis behavior of pyrolytic lignin and milled wood lignin by using TG–FTIR analysis

Pyrolysis behaviors of four lignin polymers isolated from the same pine wood

“…Conjugated and unconjugated C@O groups (1618 cm À1 and 1712 cm À1 , respectively) were also detected. C@O conjugated with the aromatic ring was the major C@O vibration, which usually had lower reaction activity than unconjugated C@O (Wang et al, 2014b). It was found that lignins contained abundant branches, such as the functional groups detected at 1224 cm À1 (phenolic OAH plus ether CAO stretching), 1087 cm À1 (CAO deformation at C b and aliphatic ether), and 1033 cm À1 (CAO deformation at C a and aliphatic ether) (Tejado et al, 2007).…”

“…This method has previously been successfully employed in the kinetic study of MWL pyrolysis (Wang et al, 2014b). The two functions correspond to two reactions: first, the decomposition and release of volatiles (reaction I), and second, polymerization to form char (reaction II).…”

Catalytic upgrading of fast pyrolysis biomass vapors over fresh, spent and regenerated ZSM-5 zeolites

“…A large number of researches have been focused on producing high quality bio-oil, and one of the most attractive methods is catalytic fast pyrolysis (CFP) technology [2][3][4][5]. A range of zeolite catalysts has been researched in the literatures [6][7][8], and previous experimental results have confirmed that ZSM-5 zeolite performs the best to de-oxygenate pyrolysis vapors and favor hydrocarbon production [9][10][11].…”

Structural Characterization and Pyrolysis Behavior of Cellulose and Hemicellulose Isolated from Softwood Pinus armandii Franch

“…DG-DAEM model is developed in recent years and has been proved to offer high accuracy in simulating devolatilization over the whole temperature range 21,22 . The DAEM model is described by Eq.…”

“…The peak at 2924 cm -1 was ascribed to the axial deformation of C-H in methyl and methylene 22 . The peak at 1610 cm -1 might be assigned to water of hydration 28 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 14 30,31 .…”