Journal
FUEL
Volume 112, Issue -, Pages 60-73Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.fuel.2013.04.079
Keywords
Corn stover; Bio-oil; Distillation
Categories
Ask authors/readers for more resources
Fractional distillation of bio-oil derived from pyrolysis of corn stover was investigated under atmospheric and reduced pressure/vacuum conditions. Characterization of the fractions in terms of moisture, total acid number (TAN), energy content, elemental and chemical compositions was performed to evaluate the effectiveness of the distillation process in separating the components and rendering improved product properties. Results showed high yields (wt.%) of the heavy fractions (b.p. 180-250 degrees C at 1 bar; 160-230 degrees C at 0.5 bar) and significant reduction in moisture and TAN content. Water was obtained as a separate layer in the first (light) fraction (b.p. <= 100 degrees C at 1 bar; <= 80 degrees C at 0.5 bar). The heating values increased, especially for the light distillates in both atmospheric and vacuum distillation and the heavy distillates in atmospheric distillation. Analysis of the chemical composition showed that aromatic and oxygenated compounds were distributed in the light and middle fractions (similar to 15-20%) while phenolic compounds were concentrated in the heavy fraction (similar to 53%). The distillation process was effective in separating the components and yielding a product (heavy fraction) with improved properties and composition and which can be further utilized as feedstock for future upgrading procedures or as a blending material with other liquid fuels. (C) 2013 Elsevier Ltd. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available