Biomass

Oak Wood — Evolved Gas Analysis (GC-MS)

TG-DTG-T plot of oak wood, 4.37 mg, N2, event-controlled triggering of the GC-MS run at 291°C and at 347°C (DTG threshold 8 %/min; temperature stops until GC-MS run is finished).

Detailed analysis of the gas composition is achieved by the GC furnace program: IsothermalTests at controlled and constant temperature are called isothermal.isothermal 60°C for 0.5 min, linear heating to 310°C at 25 K/min.

Total Ion Chromatogram for the first step of oak wood PyrolysisPyrolysis is the thermal decomposition of organic compounds in an inert atmosphere.pyrolysis, with library search result for the main peaks (table listed in ascending order of retention times (RT/min)).

RTArea / %Best hit (NIST/Wiley)
1.1572.276H,8H-Benzopyrano[3,4-b]benzopyran
1.3568.96Acetic acid
1.3568.961-Penten-3-ol
2.25326.67Furfural
2.5511.65Thiazole
3.1081.961-methyl-1-silacyclohexane
3.24314.863-Methyl Hydantoin
6.8811.70Benzenamine, N-methyl-N-phenyl-
9.15616.972-Isopropyl-10-methylphenanthrene
9.2099.01Phenanthrene, 1-methyl-7-(1-methylethyl)-
9.2981.42Benzene, 1-methyl-4-[(4-propylphenyl)ethynyl]-

Total Ion Chromatogram for the second step of oak wood pyrolysis, with library search result for the main peaks (table listed in ascending order of retention times (RT/min)).

RTArea / %           Best hit (NIST/Wiley)
1.1577.72 [2-(4-Dimethylaminocinnamoyl)-5-me thylphenoxy]difluoroborane
1.4086.83 Furan, 2-methyl-
1.6811.70 Furan, 2,5-dimethyl-
2.25821.28 Furfural
2.3577.37 2-Furanmethanol
3.0337.80 2-Furancarboxaldehyde, 5-methyl-
3.1282.91 2-Amino-3-hydroxypyridine
3.8202.81 Phenol, 2-methoxy-
3.9722.19 Levoglucosenone
4.4441.63 2-Methoxy-5-methylphenol
5.3353.73 Phenol, 2,6-dimethoxy-
6.8972.03 Benzenamine, 4-(phenylmethyl)-
9.20912.26 Phenanthrene, 1-methyl-7-(1-methylethyl)-
9.3402.72 Benzene, 1-methyl-4-[(4-propylphenyl)ethynyl]-