نتایج جستجو برای: cresols
تعداد نتایج: 128 فیلتر نتایج به سال:
Wood creosotes are derived from the resin from leaves of the creosote bush (Larrea, referred to herein as creosote bush resin) and beechwood (Fagus, referred to herein as beechwood creosote). Creosote bush resin consists of phenolic (e.g., flavonoids and nordihydroguaiaretic acid), neutral (e.g., waxes), basic (e.g., alkaloids), and acidic (e.g., phenolic acids) compounds. The phenolic portion ...
Lignin is an attractive feedstock for low molecular weight biobased phenols using depolymerization strategies such as reductive catalytic fractionation or fast pyrolysis. Such often yield a product mixture enriched in lignin-derived monomers with methoxy substituents. Selective hydrodeoxygenation (HDO) effective methodology to demethoxylate these into valuable alkylated phenols. Here, we report...
Commercially available MG70 hydrotalcite (HT) has been investigated for its influence on the in-situ catalytic fast pyrolysis of beechwood. The investigations were performed both with an analytical Py-GC/MS (pyroprobe) and a bench scale fluidized bed reactor at temperature 500 °C. semi qualitative pyroprobe analysis was carried out different catalyst to biomass (C/B) ratios ratio 4 found be opt...
A toluene-degrading sulfate-reducing bacterium, strain Tol2, was isolated from marine sediment under strictly anoxic conditions. Toluene was toxic if applied directly to the medium at concentrations higher than 0.5 mM. To provide toluene continuously at a nontoxic concentration, it was supplied in an inert hydrophobic carrier phase. The isolate had oval, sometimes motile cells (1.2 to 1.4 by 1....
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