Pyrolysis-gas chromatography-mass spectrometry was performed on milled wood lignins (MWLs) and wood samples. Among the major pyrolysis products identified from loblolly pine lignin were guaiacol, 4-methylguaiacol, 4-vinylguaiacol, vanillin, coniferal­ dehyde, and coniferyl alcohol. White oak lignin pyrolysis products also included guaiacol, 4-methylguaiacol, and vanillin and addi­ tionally 2,6-...

This paper contains the description of pyrolysis and flow process through porous media taking into account kinetic rate coefficient and equilibrium state of pyrolysis. Mathematical equation of pyrolysis mechanism including kinetic rate coefficient and equilibrium rate of pyrolysis, and equations like mass, momentum and energy and flow through porous zone are presented. Considered model is based...

The presented study aims to improve the quality of bio-oils by catalytic upgrading of pyrolysis bio-oil from microwave pyrolysis of biomass using transition metal modified activated carbon (AC) catalyst. A central composite experimental design (CCD) was used to optimize the reaction conditions for high quality bio-oil production. The effects of reaction temperature and reaction time on product ...

Due to the massive increase in polymer manufacture, there has been a remarkable plastic waste. With fewer landfills being used dump waste each year, it is becoming increasingly important use effective recycling methods for decomposition. In present work, polystyrene was degraded presence of natural clay (K<sub>0.02</sub>, Ca<sub>0.15</sub> [Mg<sub>0.25</sub>,...

Thermal analysis is an important method to evaluate the thermal stability of polymer materials; however, efficiently describing complex pyrolysis process polymers remains a great challenge. In this paper, new dual-competitive parallel-reaction kinetics model proposed for thermogravimetric lines material processes. method, peak analysis, reaction form, and parallel mechanism are combined build k...

This review presents the summary of new studies on pyrolysis of biomass to produce fuels and chemical feedstocks. A number of biomass species, varying from woody and herbaceous biomass to municipal solid waste, food processing residues and industrial wastes, were subjected to different pyrolysis conditions to obtain liquid, gas and solid products. The results of various biomass pyrolysis invest...