โ Scribed by E. Putun; M. Kockar; F. Gercel; S. Brown; J. Andresen; C. McRae; C.E. Snape
No coin nor oath required. For personal study only.
To assess the effects of mass transfer and hydrogen pressure on the oil yield and quality from cellulosic biomass, fixed-bed pyrolysis (atmospheric pressure) and hydropyrolysis experiments at temperatures between 400 and 650ยฐ(2 have been conducted on sunflower bagasse and pure cellulose. The Euphorbia Rigida was extracted with n-hexane and methanol to remove low molecular mass terpenoids and sacchaddes so as to elucidate the extent of oil formation and aromatisation from the cellulosic structure. In contrast to coals and oil shales, oil yields from the sunflower bagasse were found to be largely independent of particle size (<1.8 nun) and sweep gas velocity with ca 35-40% w/w oil (dry basis) being obtained at 450-500ยฐC. The use of high hydrogen pressures (> 50 bar) only gave rise to relatively small increases in oil yield but, expressed on a carbon basis, these increases am much greater due to the reduced the oxygen contents of the oils.
๐ SIMILAR VOLUMES