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My departmental seminar on my research work.
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Pre-treatment of lignocellulosic biomass
Jiby KurianPh. D. Student
Bioresource Engineering
Lignocellulosic biomass
Cellulose 40-50 %
Hemicellulose 25-30%
Lignin 10-20%
Minerals 2-5%Others 2-5%
brae.calpoly.edu
Value addition to lignocellulosic biomass
Pre-treatment of lignocelluloses
Mosier et al., 2006
Types of pre-treatment processes
Pre-treatment Catalyst(s) usedAverage
Temperature & Time
Final Treatment (s)
Thermo-chemicalAcid, Alkali, H2O,
Solvents1500C,
2-60 min.Enzymatic hydrolysis
and fermentation
Biochemical Microorganisms, enzymes
300C, 24-72 hrs.
Fermentation
Thermal (Gasification)
------------------ 10000C, 2-30 min.
FT synthesis, Fermentation
Biofuel production: Today
Feedstock Harvesting Transporting
StoringPre-treatment and final processingbrae.calpoly.edu
The problems • Low density of the resource (0.1-0.2 kg/m3)
• Scarcity and variability
• Environmental issues
• Not economical
Biomasshub.com
The solution: On-the-site Pre-treatment (OP)
Biofuels
Bioproducts
Energy
Bio-refinery
Cellulose
Hemicellulose
Lignin
Minerals
On-the-site Pre-treatment
Farm Industry
The benefits of OP for farmers
• Additional jobs
• Rural development
• Sustainable biomass production
"Not mass production, but production by the masses." – M. K. Gandhi
The benefits of OP for industries
• Compact, purified and specific raw materials
• Availability of raw materials
• Less capital investment
My research work
Biomass On-the-site pre-treatment
Cellulose
Hemicellulose
Lignin
Minerals
Biofuels, & biomaterials
Solid fuel
Fertilizer
References • http://afdelingen.kiviniria.net/media-afdelingen/DOM100000178/
Presentaties/2011/Kersten_19-05-2011.pdf• Eranki et al., (2011) Advanced regional biomass processing depots: A key
to the logistical challenges to the cellulosic biofuel industry. Biofuels, Bioproducts and Biorefining, Vol 5(6), pp 621-630.
• http://www.businesschemistry.org/article/?article=121• Carolan et al., (2007) Technical and Financial Feasibility Analysis of
Distributed Bioprocessing Using Regional Biomass Pre-Processing Centers. Journal of Agricultural & Food Industrial Organization Vol. 5 [2007], Article 10
Acknowledgement
• Supervisor:
• Course instructor:
• Reviewers• Friends
THANK YOU!