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Les Groom (SRS)
Tom Elder (SRS)
Don Bragg (SRS)
Anurag Mandalika (LSU)
Darren Baker (UTK)
Thermal Properties of Loblolly
Pine from Naturally Regenerated
Stands
Project Overview
Austin, TX SWST/FPS International Conference June 9, 2013
• Thermochemical Characterization
– Proximate
– Ultimate
– Gasification
• Silvicultural Regimes
– Growth Rate
– Feedstock Type
• Linkage to LTSP
Overview of Feedstocks
Austin, TX SWST/FPS International Conference June 9, 2013
Elemental Analyses
Austin, TX SWST/FPS International Conference June 9, 2013
Proximate Analyses
Austin, TX SWST/FPS International Conference June 9, 2013
Carbon Content
Austin, TX SWST/FPS International Conference June 9, 2013
Standard Ash Content
Austin, TX SWST/FPS International Conference June 9, 2013
High Heating Value
Austin, TX SWST/FPS International Conference June 9, 2013
Volatile Matter
Austin, TX SWST/FPS International Conference June 9, 2013
Gasification: Downdraft
Austin, TX SWST/FPS International Conference June 9, 2013
Gas Analysis – Mixed SYP
Austin, TX SWST/FPS International Conference June 9, 2013
Mixed SYP (Flowrate = 70 scmh)
Austin, TX SWST/FPS International Conference June 9, 2013
Temperature/Syngas Fluctuations
Louisville, KY Workshop on Renewable Energy and Energy Efficiency March 26, 2013
Loblolly Bole – CO% (raw)
Austin, TX SWST/FPS International Conference June 9, 2013
Loblolly Bole – CO% (normalized[1])
Austin, TX SWST/FPS International Conference June 9, 2013
Gasifier Temperature Fluctuations
Austin, TX SWST/FPS International Conference June 9, 2013
Gasifier Temperature Fluctuations
Austin, TX SWST/FPS International Conference June 9, 2013
Gasifier Temperature Fluctuations
Austin, TX SWST/FPS International Conference June 9, 2013
Loblolly Bole – CO% (normalized[2])
Austin, TX SWST/FPS International Conference June 9, 2013
High-Ext. Slash Temp. Profile Normalization
Austin, TX SWST/FPS International Conference June 9, 2013
Arkansas Lob BW vs. High Ext. Slash
Austin, TX SWST/FPS International Conference June 9, 2013
Conclusions
• Proximate/Ultimate Analyses– Silviculture and Feedstocks are Significantly
Different
• Gasification – Variability of Test Conditions Affect Results
– Does Appear That Syngas Composition is a Function of Feedstock
• Very Early Stages in Syngas Analysis
Austin, TX SWST/FPS International Conference June 9, 2013
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