Y. Y. Lee
Alumni Professor,
Department of Chemical Engineering
212 Ross Hall
Phone: (334) 844-2019,
Fax: (334) 844-2063, E-Mail: yylee@eng.auburn.edu
Education
PhD, Chemical Engineering, 1972,
Research Interests
Bioconversion Processes, Biomass Pretreatment, Biofuels/Biomass Engineering Biochemical Engineering, Enzyme/Fermentation Process Technology, Reaction Kinetics and Modeling in Biomass Processing
Research Summary
Dr. Lee is conducting research in the area of bioprocessing
of lignocellulosic materials for production of fuels
and chemicals. These studies include physico-chemical
properties of biomass, bioreactor development, and enzyme and microbial process
technology. His recent research topics include development of a novel
pretreatment/delignification of biomass for enzymatic saccharification and
Simultaneous Saccharification and Fermentation of
biomass, high temperature–low acid processing for total hydrolysis of
biomass, transport properties of acid catalyst in biomass, analysis and design
of biomass reactor, and ammonia recycled percolation (ARP) process for biomass
pretreatment.
Major Publications (Since
2000)
1.
Yongming Zhu, Y. Y. Lee, and Richard T. Elander,
“Conversion of Aqueous Ammonia-TreatedCorn
Stover to Lactic Acid by Simultaneous Saccharification
and Cofermentation”, in press, Applied Biochem. and Biotechnol. Vol. 124, 1119-1131, 2007.
2.
Suma Perri, Srinivas Karra, Y. Y. Lee and M. Nazmul Karim. “Modeling Intrinsic Kinetics of Enzymatic
Cellulose Hydrolysis”, Biotechnol. Prog. 23, 626-637, 2007
3.
Tae Hyun Kim and
Y. Y.Lee. “Pretreatment of Corn Stover by
Soaking in Aqueous Ammonia at Moderate Temperatures”, Applied Biochem. and Biotechnol.
Vol. 124, 1119-1131, 2007.
4.
Z. Colley, O.
O. Fasina, D. Bransby, Y.
Y. Lee. “Moisture Effect on the Physical Characteristics of Switchgrass Pellets”, Transactions
of the ASABE, 49, 1845-1851, 2006
5.
Yongming Zhu, Tae Hyun Kim, Y.Y. Lee, Rongfu
Chen, and Richard T. Elander. “Enzymatic
Production of Xylooligsaccharides from Corn Stover
and Corn Cobs treated with Aqueous Ammonia”, Appl.
Biochem. Biotechnol., 130,
586-598, 2006
6.
Tae Hyun Kim,
Y.Y. Lee, Changshin Sunwoo,
and Jun Seok Kim, “Pretreatment of Corn Stover
by Low-liquid Ammonia Percolation Process”, Appl.
Biochem. Biotechnol., Vol.
123, 41-57, 2006
7.
Tae Hyun Kim and
Y.Y. Lee, “Fractionation of Corn Stover by Hot-Water and Aqueous Ammonia
Treatment”, Bioresource Technology, 97, 224-232,
2006.
8.
Tae Hyun Kim and
Y.Y. Lee, “Pretreatment and Fractionation of Corn Stover by Ammonia
Recycle Percolation (ARP) Process, Bioresource
Technology”, 96, 2007-2013, 2005.
9.
Wee, Young-Jung, Yun, Jong-Sung, Lee, Y. Y., Zen,
An-Ping, Ryu, Hwa-Won, Recovery
of Lactic Acid by Repeated Batch Electrodialysis and
Lactic Acid Producing Using Electrodialysis
Wastewater, J. of Bioscience and Bioengineering, Vol. 99, No.2, 104-108, 2005
10.
Yongming Zhu, Y. Y. Lee and Richard T. Elander, "Optimization of High-Solids Dilute-Acid
Pretreatment of Corn Stover Using a Percolation Reactor", , Applied
Biochemistry and Biotechnology, 121-124, 1045-1054, 2005
11.
C. E. Wyman,
Bruce E. Dale, R. T. Elander, Mark Holtzapple, M. R. Ladisch, &
Y. Y. Lee, “Comprehensive sugar recovery data from laboratory scale
application of leading pretreatment technolpgies to
corn stover”, 96, 2026-2032, 2005
1.
C. E. Wyman,
Bruce E. Dale, R. T. Elander, Mark Holtzapple, M. R. Ladisch, &
Y. Y. Lee, “Cordinated development of leading
biomass pretreatment technology”, Bioresource
Technology, 96, 1959-1966, 2005
2.
Yongming Zhu, Y. Y. Lee and
Richard T. Elander, ''Dilute-Acid Pretreatment of
Corn Stover using a High-Solids Percolation Reactor", Applied Biochemistry
and Biotechnology, 117 (2), 103-114, 2004
3.
Tae Hyun Kim, Jun
Seok Kim, Changshin Sunwoo, and Y. Y. Lee, Pretreatment of Corn Stover by
Ammonia Recycle Percolation Process, Bioresource
Technology, 90, 39-47, 2003
4.
Qian Xiang, JunSeok Kim, and
Y.Y. Lee, A
Comprehensive Kinetic Model for Acid Hydrolysis of Lignocellulose,
Appl. Biochem.
Biotechnol., 94-95, 337-352, 2003
5.
Pär O. Pettersson, Robert W. Torget, Qian Xiangc,
Y.Y. Lee and Guido Zacchi, Simplistic modeling
approaches to the heterogeneous dilute-acid hydrolysis of cellulose microcrystallites derived from lignocellulose,
Appl. Biochem.
Biotechnol., 94-95, 451-456, 2003
6.
Qian Xiang, Y.Y. Lee, Robert W. Torget,
and Pär O. Pettersson,
“Heterogeneous Aspects of Acid Hydrolysis of a-Cellulose”, Appl.
Biochem. Biotechnol.,
94-95, 505-514, 2003
7.
Qian Xiang , and Y.Y. Lee, Robert
W. Torget, “Kinetics of Glucose Decomposition
During Dilute Acid Hydrolysis Of Lignocellulosic
Biomass” Appl. Biochem. Biotechnol. (2003)
8.
Qian Xiang and Y.Y. Lee, Production of Oxychemicals
from Precipitated Hardwood Lignin, Appl.
Biochem. Biotechnol., 91-93,
71-80, 2002
9.
S. B. Kim and Y. Y. Lee, “Diffusion of Sulfuric Acid within Lignocellulosic Biomass Particles and Its ImpactonDilute-Acid Pretreatment”, 83, 165-171, Bioresource
Technology, 2002
10.
Jun Seok Kim, Y.Y. Lee, and Robert W. Torget, Cellulose Hydrolysis Under Extremely Low
Sulfuric Acid and High-Temperature Conditions, Appl.
Biochem. Biotechnol., 91-93,
331-440, 2002
11.
Niru Balasubramanian, Jun-Seok Kim, and Y.Y. Lee,
Fermentation of Xylose into Acetic Acid by Clostridum
termoaceticum, Appl.
Biochem. Biotechnol., 91-93,
367-376, 2001
12.
R. W. Torget, Jun Seok Kim, and Y.Y.
Lee, “Theoretical Aspects of Dilute-Acid Hydrolysis/Fractionation Kinetics
of Hardwood Carbohydrates - Part I: Cellulose Hydrolysis”, I&EC,
Res. , 39, 2817-2825, 2000
13.
J.R Borden., Y.
Y. Lee. and H. H. Yoon, “Simultaneous saccharification
and fermentation of cellulosic biomass to acetic acid”, Applied
Biochemistry & Biotechnology , V.84-86 , 963-970 , 2000
14.
P. V. Iyer, Suzanna Thomas,
and Y. Y. Lee, “High-yield
fermentation of pentoses into lactic acid”, Applied
Biochemistry & Biotechnology, V.84-86 , 665-677 , 2000
15.
Q. Xiang and Y.
Y. Lee, “Oxidative cracking of precipitated hardwood lignin by hydrogen
Peroxide” Applied Biochemistry & Biotechnology ,
V.84-86 , 153-162 , 2000
16.
Jun-Seok Kim, Y. Y. Lee,
and S. C. Park, “Pretreatment of wastepaper and pulp mill sludge by
aqueous ammonia and hydrogen peroxide”, Applied Biochemistry &
Biotechnology , V.84-86 , 129-139, 2000
Patents/Inventions:
Y. Y. Lee and Hatem Harraz, “Production
of Non-Crystalline Cellulose from Refined and Unrefined Cellulosic
Materials”, Provisional Patent Application Filed to US Patent and Trademark
Office, August 3, 2004, AU Disclosure #04-038. Confirmation
No. 7400.
Y. Y. Lee and Tae Hyun
Kim, “Soaking in Aqueous Ammonia at Moderate Temperataures
for Improvement of Enzymatic Saccharification of Lignocellulosic
Biomass”, Provisional Patent Application Filed to US Patent and Trademark
Office, April 13, 2004, AU Disclosure #04-029.
Y. Y. Lee,
“Low-temperature treatment of lignocellulosic biomass with aqueous
ammonia for improvement of enzymatic digestibility”, Provisional Patent
Application Filed to US Patent and Trademark Office, April 2, 2003. AU
Disclosure #03-022.
Current Research Contracts/Grants
·
Integration
of Leading Pretreatment Technologies with Enzymatic Hydrolysis and
Fermentation, DOE/EERE, Biomass Research and Development Initiative Awarded to
Biomass Refining Consortium for Applied and Fundamental Innovations,
Administered by
·
Pretreatment
of Agricultural Residues Using Aqueous Ammonia for Fractionation and High Yield
Saccharification, NSF/EPA, TSE Program, Principal
Investigator
·
Characterization
of Biomass Feedstocks, Novel Intermediates, and Conversion Products. Abengoa Bioenergy R&D, Inc., Principal Investigator
·
Improvement
of Masada MSW-Ethanol Process,
Principal Investigator
·
Production
of cellulase from pulp mill sludges, AU/CBB
Pending
·
Understanding
and Overcoming Variability in Feedstock in Pretreatment & Bioconversion,
DOE/EERE, CAFI Project,
Services to Academic Society:
On Editorial Board of:
Applied
Biochemistry Biotechnology
BioResources J.
Biotechnology
for Biofuels
Founding Member of Biomass Refining
Consortium of Applied and Fundamental Innovation (CAFI), 2000-present
Session chairs at numerous symposiums
including Symposium in Biotechnology for Fuels and Chemicals, AIChE Annual Meetings, International Solar and Renewable
Energy Congress
Member of US delegates to US/USSR
Cooperative Research in Science and Technology-Division of Enzyme Technology,
1978-1980.
Honors & Awards:
Alumni Professor,
John and Mary Sanders Professor, Auburn
University, 2000-2006
William F. Walker Teaching Award,
Auburn Engineering Award for Excellence
of Research, (1996, 2000)
Outstanding Faculty in Chemical
Engineering, 1985
Honor Societies: Phi Kappa Phi, Sigma Xi,
Phi Lamda Upsilon, Omega Chi Upsilon