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Ultrasonic Vibration-Assisted Pelleting in Manufacturing of Cellulosic Biofuels: An Investigation on Biomass Particle Size

[+] Author Affiliations
Pengfei Zhang, Qi Zhang, Z. J. Pei

Kansas State University, Manhattan, KS

Linda Pei

Manhattan High School, Manhattan, KS

Paper No. IMECE2011-64172, pp. 279-286; 8 pages
  • ASME 2011 International Mechanical Engineering Congress and Exposition
  • Volume 3: Design and Manufacturing
  • Denver, Colorado, USA, November 11–17, 2011
  • Conference Sponsors: ASME
  • ISBN: 978-0-7918-5489-1
  • Copyright © 2011 by ASME


Biofuels made from cellulosic biomass are an alternative to petroleum-based liquid transportation fuels. However, several technical barriers have hindered cost-effective manufacturing of cellulosic biofuels, such as low density of cellulosic feedstocks (causing high transportation and storage costs) and low sugar yield in enzymatic hydrolysis. Ultrasonic vibration-assisted (UV-A) pelleting can increase the density of cellulosic feedstocks and the sugar yield in enzymatic hydrolysis. A hypothesis for UV-A pelleting to increase sugar yield is that UV-A pelleting reduces the particle size of cellulosic biomass. This paper reports an experimental investigation on effects of UV-A pelleting on biomass particle size. Particle sizes before and after UV-A pelleting are measured and compared. The results show that there is no significant difference between particle sizes before and after UV-A pelleting. Therefore, the hypothesis is rejected.

Copyright © 2011 by ASME



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