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Title: Evaluating industrial drying of cellulosic feedstock for bioenergy: A systems approach

Abstract

Here, a large portion of herbaceous and woody biomass must be dried following harvest. Natural field drying is possible if the weather cooperates. Mechanical drying is a certain way of reducing the moisture content of biomass. This paper presents an engineering analysis applied to drying of 10 Mg h–1 (exit mass flow) of biomass with an initial moisture content ranging from 25% to 70% (wet mass basis) down to 10% exit moisture content. The requirement for hog fuel to supply heat to the dryer increases from 0.5 dry Mg to 3.8 dry Mg h–1 with the increased initial moisture of biomass. The capital cost for the entire drying system including equipment for biomass size reduction, pollution control, dryer, and biomass combustor sums up to more than $4.7 million. The operating cost (electricity, labor, repair, and maintenance) minus fuel cost for the dryer alone amount to 4.05 Mg–1 of dried biomass.

Authors:
 [1];  [1]
+ Show Author Affiliations
  1. Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)
Publication Date:
Research Org.:
Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
Sponsoring Org.:
USDOE Office of Energy Efficiency and Renewable Energy (EERE)
OSTI Identifier:
1327646
Alternate Identifier(s):
OSTI ID: 1327755
Grant/Contract Number:  
AC05-00OR22725
Resource Type:
Accepted Manuscript
Journal Name:
Biofuels, Bioproducts & Biorefining
Additional Journal Information:
Journal Volume: 10; Journal Issue: 1; Journal ID: ISSN 1932-104X
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; bioenergy feedstocks; biomass dryers; biomass burners; moisture content; humidity ratio; heat energy; drying costs; heat recycling

Citation Formats

Sokhansanj, Shahab, and Webb, Erin. Evaluating industrial drying of cellulosic feedstock for bioenergy: A systems approach. United States: N. p., 2016. Web. doi:10.1002/bbb.1619.
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Sokhansanj, Shahab, & Webb, Erin. Evaluating industrial drying of cellulosic feedstock for bioenergy: A systems approach. United States. https://doi.org/10.1002/bbb.1619
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Sokhansanj, Shahab, and Webb, Erin. Thu . "Evaluating industrial drying of cellulosic feedstock for bioenergy: A systems approach". United States. https://doi.org/10.1002/bbb.1619. https://www.osti.gov/servlets/purl/1327646.
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@article{osti_1327646,
title = {Evaluating industrial drying of cellulosic feedstock for bioenergy: A systems approach},
author = {Sokhansanj, Shahab and Webb, Erin},
abstractNote = {Here, a large portion of herbaceous and woody biomass must be dried following harvest. Natural field drying is possible if the weather cooperates. Mechanical drying is a certain way of reducing the moisture content of biomass. This paper presents an engineering analysis applied to drying of 10 Mg h–1 (exit mass flow) of biomass with an initial moisture content ranging from 25% to 70% (wet mass basis) down to 10% exit moisture content. The requirement for hog fuel to supply heat to the dryer increases from 0.5 dry Mg to 3.8 dry Mg h–1 with the increased initial moisture of biomass. The capital cost for the entire drying system including equipment for biomass size reduction, pollution control, dryer, and biomass combustor sums up to more than $4.7 million. The operating cost (electricity, labor, repair, and maintenance) minus fuel cost for the dryer alone amount to 4.05 Mg–1 of dried biomass.},
doi = {10.1002/bbb.1619},
journal = {Biofuels, Bioproducts & Biorefining},
number = 1,
volume = 10,
place = {United States},
year = {Thu Jan 21 00:00:00 EST 2016},
month = {Thu Jan 21 00:00:00 EST 2016}
}
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Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
https://doi.org/10.1002/bbb.1619
Copyright Statement
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Citation Metrics:
Cited by: 6 works
Citation information provided by
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Figures / Tables:

Table 1 Table 1: Range of moisture contents of wood biomass
All figures and tables (15 total)
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Works referenced in this record:

Drying of Woody Biomass for Bioenergy: Drying Technologies and Optimization for an Integrated Bioenergy Plant
journal, May 2010

Integration of biomass drying with combustion/gasification technologies and minimization of emissions of organic compounds
journal, January 2009

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    Works referencing / citing this record:

    Use of Alternative Types of Fuel for Grain Drying
    book, January 2019

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      Figures / Tables found in this record:

      Table 1 (p. 16)table
      Table 2 (p. 17)table
      Table 3 (p. 17)table
      Table 4 (p. 18)table
      Table 5 (p. 20)table
      Table 6 (p. 20)table
      Fig. 1 (p. 22)figure
      Fig. 2 (p. 22)figure
      Fig. 3 (p. 23)figure
      Fig. 4 (p. 23)figure
      Fig. 5 (p. 24)figure
      Fig. 6 (p. 24)figure
      Fig. 7 (p. 25)figure
      Fig. 8 (p. 26)figure
      Fig. 9 (p. 27)figure
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        Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.

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