Energy requirement for lignocellulosic feedstock densifications in relation to particle physical properties, preheating, and binding agents

Zewei Miao, Tony E. Grift, Alan C. Hansen, K. C. Ting

Research output: Contribution to journalArticle

Abstract

The low bulk density and low flowability of lignocellulosic biomass feedstock have been regarded widely as major barriers for a sustainable and efficient supply system. Densification of biomass is a viable option to increase the bulk (and inherent energy) density and flowability of feedstock, leading to improved efficiency of the supply system. The energy consumption of feedstock densification is one of the key variables that determines the efficiency of the feedstock supply. This paper investigates the energy consumption of herbaceous feedstock compression in relation to particle physical properties, preheating, and binding agents, such as steep water and thin stillage, both byproducts of corn ethanol production. The results indicate that the specific energy consumption for mini-bale densification was a function of the particle size, moisture content, and feedstock type. During pelletization, where all pellets were exposed to an identical maximum pressure, preheating temperature, particle size, and moisture content played a significant role in improving the energy efficiency and pellet density. Both binding agents increased the energy requirement for pelletization but yielded more durable pellets.

Original languageEnglish (US)
Pages (from-to)588-595
Number of pages8
JournalEnergy and Fuels
Volume27
Issue number1
DOIs
StatePublished - Jan 17 2013

Fingerprint

Preheating
Densification
Feedstocks
Physical properties
Energy utilization
Biomass
Moisture
Particle size
Byproducts
Energy efficiency
Compaction
Ethanol
Water

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Fuel Technology
  • Energy Engineering and Power Technology

Cite this

@article{4d5c306e12e049fba8927fa7d3bd2ef1,
title = "Energy requirement for lignocellulosic feedstock densifications in relation to particle physical properties, preheating, and binding agents",
abstract = "The low bulk density and low flowability of lignocellulosic biomass feedstock have been regarded widely as major barriers for a sustainable and efficient supply system. Densification of biomass is a viable option to increase the bulk (and inherent energy) density and flowability of feedstock, leading to improved efficiency of the supply system. The energy consumption of feedstock densification is one of the key variables that determines the efficiency of the feedstock supply. This paper investigates the energy consumption of herbaceous feedstock compression in relation to particle physical properties, preheating, and binding agents, such as steep water and thin stillage, both byproducts of corn ethanol production. The results indicate that the specific energy consumption for mini-bale densification was a function of the particle size, moisture content, and feedstock type. During pelletization, where all pellets were exposed to an identical maximum pressure, preheating temperature, particle size, and moisture content played a significant role in improving the energy efficiency and pellet density. Both binding agents increased the energy requirement for pelletization but yielded more durable pellets.",
author = "Zewei Miao and Grift, {Tony E.} and Hansen, {Alan C.} and Ting, {K. C.}",
year = "2013",
month = "1",
day = "17",
doi = "10.1021/ef301562k",
language = "English (US)",
volume = "27",
pages = "588--595",
journal = "Energy & Fuels",
issn = "0887-0624",
publisher = "American Chemical Society",
number = "1",

}

TY - JOUR

T1 - Energy requirement for lignocellulosic feedstock densifications in relation to particle physical properties, preheating, and binding agents

AU - Miao, Zewei

AU - Grift, Tony E.

AU - Hansen, Alan C.

AU - Ting, K. C.

PY - 2013/1/17

Y1 - 2013/1/17

N2 - The low bulk density and low flowability of lignocellulosic biomass feedstock have been regarded widely as major barriers for a sustainable and efficient supply system. Densification of biomass is a viable option to increase the bulk (and inherent energy) density and flowability of feedstock, leading to improved efficiency of the supply system. The energy consumption of feedstock densification is one of the key variables that determines the efficiency of the feedstock supply. This paper investigates the energy consumption of herbaceous feedstock compression in relation to particle physical properties, preheating, and binding agents, such as steep water and thin stillage, both byproducts of corn ethanol production. The results indicate that the specific energy consumption for mini-bale densification was a function of the particle size, moisture content, and feedstock type. During pelletization, where all pellets were exposed to an identical maximum pressure, preheating temperature, particle size, and moisture content played a significant role in improving the energy efficiency and pellet density. Both binding agents increased the energy requirement for pelletization but yielded more durable pellets.

AB - The low bulk density and low flowability of lignocellulosic biomass feedstock have been regarded widely as major barriers for a sustainable and efficient supply system. Densification of biomass is a viable option to increase the bulk (and inherent energy) density and flowability of feedstock, leading to improved efficiency of the supply system. The energy consumption of feedstock densification is one of the key variables that determines the efficiency of the feedstock supply. This paper investigates the energy consumption of herbaceous feedstock compression in relation to particle physical properties, preheating, and binding agents, such as steep water and thin stillage, both byproducts of corn ethanol production. The results indicate that the specific energy consumption for mini-bale densification was a function of the particle size, moisture content, and feedstock type. During pelletization, where all pellets were exposed to an identical maximum pressure, preheating temperature, particle size, and moisture content played a significant role in improving the energy efficiency and pellet density. Both binding agents increased the energy requirement for pelletization but yielded more durable pellets.

UR - http://www.scopus.com/inward/record.url?scp=84872794893&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84872794893&partnerID=8YFLogxK

U2 - 10.1021/ef301562k

DO - 10.1021/ef301562k

M3 - Article

AN - SCOPUS:84872794893

VL - 27

SP - 588

EP - 595

JO - Energy & Fuels

JF - Energy & Fuels

SN - 0887-0624

IS - 1

ER -