Robichaud, David J. published the artcileDetermining the effects of concerted elimination reactions in the pyrolysis of lignin using model compounds, Related Products of alcohols-buliding-blocks, the publication is Preprints of Symposia – American Chemical Society, Division of Fuel Chemistry (2012), 57(1), 174, database is CAplus.
Lignin pyrolysis occurs over a very broad temperature range at much higher temperatures compared with pyrolysis of the other two primary components of biomass (cellulose and hemicellulose). Due to the higher temperatures required to deconstruct the lignin polymer it promotes the formation of radicals that can lead to excessive char formation due to cross linking and forms more reactive products. It is therefore advantageous to discover new catalytic pathways that can disassemble lignin at lower temperatures, forming more stable products improving the yields of hydrocarbons, and generating less particulate material. This study investigated the thermochem. of the lignin linkage units using ab initio calculations on dimeric model compounds Quantum mech. electronic structure calculations were used to compare the energies of the competing decomposition pathways for the dimer compounds and to estimate the rates of the reactions. The theor. calculations indicated that concerted elimination pathways dominate over bond homolysis reactions under typical pyrolysis conditions. However, this does not mean that concerted elimination will be the dominant loss process for lignin. Bimol. radical chem. could very well dwarf the unimol. pathways investigated in this study. These concerted pathways tend to form stable, reasonably non-reactive products that would be more suited producing a fungible bio-oil for the production of liquid transportation fuels.
Preprints of Symposia – American Chemical Society, Division of Fuel Chemistry published new progress about 70110-65-5. 70110-65-5 belongs to alcohols-buliding-blocks, auxiliary class Benzene,Alcohol,Ether,Benzene Compounds, name is 2-Phenoxy-1-phenylpropane-1,3-diol, and the molecular formula is C15H16O3, Related Products of alcohols-buliding-blocks.
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