A tub-grinding/roll-press compaction system to increase biomass bulk density: Preliminary study

Nalladurai Kaliyan, R. Vance Morey, Michael D. White, Douglas G. Tiffany

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Scopus citations

Abstract

Transforming biomass into a product with bulk density of 240 kg/m 3 (15 lb/ft3) would enhance logistics of truck transport to users throughout the year. We evaluated a system involving tub-grinding followed by roll-press compaction to increase the bulk density of biomass such as corn stover, corn cobs and native perennial grasses. Preliminary experiments were conducted to study the effect of particle size (tub-grinder screen sizes of 19.1, 76.2, and 203.2 mm) on the bulk density of roll-press compacted biomass materials. The bulk density of tub-ground biomass ranged from 50-100 kg/m 3 (3-6 lb/ft3). Tub-grinding followed by roll-press compaction increased the bulk density by two- to three-fold, and resulted in densified products with bulk density of 190-240 kg/m3 (12-15 lb/ft3). Additional increases in bulk density appear possible with improved design of the feeding system for the roll-press compaction machine.

Original languageEnglish (US)
Title of host publicationAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009
Pages4791-4801
Number of pages11
StatePublished - Dec 1 2009
EventAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009 - Reno, NV, United States
Duration: Jun 21 2009Jun 24 2009

Publication series

NameAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009, ASABE 2009
Volume8

Other

OtherAmerican Society of Agricultural and Biological Engineers Annual International Meeting 2009
CountryUnited States
CityReno, NV
Period6/21/096/24/09

Keywords

  • Corn cobs
  • Corn stover
  • Native perennial grasses
  • Roll press compaction
  • Tub grinding

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