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Title: Impact of process conditions on the density and durability of wheat, oat, canola, and barley straw briquettes

Journal Article · · BioEnergy Research
 [1];  [2];  [3];  [2];  [2]
  1. Idaho National Lab. (INL), Idaho Falls, ID (United States). Biofuels and Renewable Energy Technologies Dept., Energy Systems and Technology Div.
  2. Univ. of Saskatchewan, Saskatoon, SK (Canada). Dept. of Chemical and Biological Engineering
  3. Shenyang Agricultural Univ. (China). College of Engineering

The present study is to understand the impact of process conditions on the quality attributes of wheat oat, barley, and canola straw briquettes. Analysis of variance indicated that briquette moisture content and initial density immediately after compaction and final density after 2 weeks of storage are strong functions of feedstock moisture content and compression pressure, whereas durability rating is influenced by die temperature and feedstock moisture content. Briquettes produced at a low feedstock moisture content of 9 % (w.b.) yielded maximum densities >700 kg/m3 for wheat, oat, canola, and barley straws. Lower feedstock moisture content of <10 % (w.b.) and higher die temperatures >110 °C and compression pressure >10 MPa minimized the briquette moisture content and maximized densities and durability rating based on surface plots observations. Optimal process conditions indicated that a low feedstock moisture content of about 9 % (w.b.), high die temperature of 120–130 °C, medium-to-large hammer mill screen sizes of about 24 to 31.75 mm, and low to high compression pressures of 7.5 to 12.5 MPa minimized briquette moisture content to <8 % (w.b.) and maximized density to >700 kg/m3. Durability rating >90 % is achievable at higher die temperatures of >123 °C, lower to medium feedstock moisture contents of 9 to 12 % (w.b.), low to high compression pressures of 7.5 to 12.5 MPa, and large hammer mill screen size of 31.75 mm, except for canola where a lower compression pressure of 7.5 to 8.5 MPa and a smaller hammer mill screen size of 19 mm for oat maximized the durability rating values.

Research Organization:
Idaho National Lab. (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE
Grant/Contract Number:
AC07-05ID14517
OSTI ID:
1177670
Report Number(s):
INL/JOU-15-34237; PII: 9527
Journal Information:
BioEnergy Research, Vol. 8, Issue 1; ISSN 1939-1234
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 40 works
Citation information provided by
Web of Science

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Effects of biomass densification on anaerobic digestion for biogas production journal January 2016
Study on Extraction of Peanut Protein and Oil Bodies by Aqueous Enzymatic Extraction and Characterization of Protein journal January 2020
Bamboo Fiber and Sugarcane Skin as a Bio-Briquette Fuel journal August 2018
Valorization of Bio-Briquette Fuel by Using Spent Coffee Ground as an External Additive journal December 2019
An “In-Situ Binding” Approach to Produce Torrefied Biomass Briquettes journal September 2019
Optimization of Cold Pressing Process Parameters of Chopped Corn Straws for Fuel journal February 2020
Application of Hybrid Genetic Algorithm Routine in Optimizing Food and Bioengineering Processes journal November 2016
Method to Produce Durable Pellets at Lower Energy Consumption Using High Moisture Corn Stover and a Corn Starch Binder in a Flat Die Pellet Mill journal June 2016