Skip to main content
U.S. Department of Energy
Office of Scientific and Technical Information

Environmental and Economic Assessment of Portable Systems: Production of Wood-Briquettes and Torrefied-Briquettes to Generate Heat and Electricity

Journal Article · · Fuels
DOI:https://doi.org/10.3390/fuels2030020· OSTI ID:1819485

This study assessed the environmental impacts and economic feasibility of generating heat using wood-briquettes (WBs), and heat and electricity using torrefied-wood-briquettes (TWBs). WBs and TWBs were manufactured from forest residues using portable systems and delivered to either residential consumers or power plants in the United States. An integrated cradle-to-grave life-cycle assessment (LCA) and techno-economic analysis (TEA) approach was used to quantify environmental impacts and minimum-selling prices (MSPs) of heat and electricity, respectively. Results illustrated that 82% and 59% of the cradle-to-grave global warming (GW) impact of producing heat resulted from the feedstock preparation in WBs and torrefaction in TWBs, respectively. About 46–54% of total cost in the production of heat were from labor and capital costs only. The GW impact of electricity production with TWBs was dominated by the torrefaction process (48% contribution). Capital cost (50%) was a major contributor to the total cost of electricity production using TWBs. The GW impacts of producing heat were 7–37 gCO₂eq/MJ for WBs, and 14–51 gCO₂eq/MJ for TWBs, whereas producing electricity using TWBs was 146–443 gCO₂eq/kWhe. MSPs of generating heat from WBs and TWBs were €1.09–€1.73 and €1.60–€2.26/MJ, respectively, whereas the MSP of electricity from TWBs was €20–€25/kWhe. Considering carbon and pile-burn credits, MSPs of heat and electricity were reduced by 60–90% compared to the base-case.

Sponsoring Organization:
USDOE
Grant/Contract Number:
AC05-06OR23100; EE0006297
OSTI ID:
1819485
Journal Information:
Fuels, Journal Name: Fuels Journal Issue: 3 Vol. 2; ISSN FUELCE; ISSN 2673-3994
Publisher:
MDPI AGCopyright Statement
Country of Publication:
Country unknown/Code not available
Language:
English

References (36)

Economic analysis of forest residues supply chain options to produce enhanced‐quality feedstocks journal December 2018
A review of biomass densification systems to develop uniform feedstock commodities for bioenergy application journal October 2011
TRACI 2.0: the tool for the reduction and assessment of chemical and other environmental impacts 2.0 journal January 2011
Economic and environmental impact assessments of a stand-alone napier grass-fired combined heat and power generation system in the southeastern US journal August 2019
Life-cycle assessment and techno-economic analysis of biochar produced from forest residues using portable systems journal November 2020
An experimental study of combustion and emissions of biomass briquettes in a domestic wood stove journal November 2012
Comparative cradle-to-gate life cycle assessment of wood pellet production with torrefaction journal January 2015
Techno-economic analysis of producing solid biofuels and biochar from forest residues using portable systems journal February 2019
Factors affecting strength and durability of densified biomass products journal March 2009
Harvesting forest biomass for energy – An alternative to conventional fuel treatments: Trials in the Superior National Forest, USA journal November 2011
Pelletizing properties of torrefied spruce journal November 2011
Processing and sorting forest residues: Cost, productivity and managerial impacts journal October 2016
Resiliency optimization of biomass to biofuel supply chain incorporating regional biomass pre-processing depots journal February 2017
Mapping the performance of wood-burning stoves by installations worldwide journal September 2016
Wood stove combustion air retrofits: A low cost way to increase energy savings in dwellings journal April 2018
Environmental and economic assessment of torrefied wood pellets from British Columbia journal March 2020
Life-cycle impact and exergy based resource use assessment of torrefied and non-torrefied briquette use for heat and electricity generation journal October 2019
Renewable energy from agro-residues in China: Solid biofuels and biomass briquetting technology journal December 2009
A state-of-the-art review of biomass torrefaction, densification and applications journal April 2015
Evolution of the Brazilian residential carbon footprint based on direct energy consumption journal February 2016
Key challenges and requirements for sustainable and industrialized biorefinery supply chain design and management: A bibliographic analysis journal March 2017
Review of the operational flexibility and emissions of gas- and coal-fired power plants in a future with growing renewables journal February 2018
Techno-economic and environmental assessments of storing woodchips and pellets for bioenergy applications journal December 2018
Integrating Torrefaction in the Wood Pellet Industry: A Critical Review journal December 2016
Study on Density, Hardness, and Moisture Uptake of Torrefied Wood Pellets journal February 2013
2016 Billion-Ton Report: Advancing Domestic Resources for a Thriving Bioeconomy (Executive Summary) journal October 2016
100% Test Burn of Torrefied Wood Pellets at a Full-Scale Pulverized Coal Fired Utility Steam Generator conference June 2018
Demonstration of a Pilot-Scale Plant for Biomass Torrefaction and Briquetting journal January 2018
A Comparative Life-Cycle Assessment of Briquetting Logging Residues and Lumber Manufacturing Coproducts in Western United States journal January 2018
The Economics of Biomass Logistics and Conversion Facility Mobility: An Oregon Case Study journal January 2018
Demand Curve Estimation of Locally Produced Woody Biomass Products journal January 2018
Performance Analysis of a Biomass Gasifier Genset at Varying Operating Conditions journal January 2018
Strategies for Reducing Moisture Content in Forest Residues at the Harvest Site journal January 2018
Waste To Wisdom: Utilizing Forest Residues for the Production of Bioenergy and Biobased Products journal January 2018
Feasibility of a 100% Global Renewable Energy System journal October 2020
A Review of Technical and Economic Aspects of Biomass Briquetting journal June 2020

Similar Records

Life-cycle impact and exergy based resource use assessment of torrefied and non-torrefied briquette use for heat and electricity generation
Journal Article · Fri May 31 20:00:00 EDT 2019 · Journal of Cleaner Production · OSTI ID:1799204

Demonstration of a Pilot-Scale Plant for Biomass Torrefaction and Briquetting
Journal Article · Sun Dec 31 23:00:00 EST 2017 · Applied Engineering in Agriculture · OSTI ID:1541893

Effects of thermal treatment on energy density and hardness of torrefied wood pellets
Journal Article · Fri Sep 26 20:00:00 EDT 2014 · Fuel Processing Technology · OSTI ID:1335310

Related Subjects