Browsing by Author "Lee, Yoon Y."

Now showing items 1-15 of 15

Alkaline Pretreatment of Biomass for Ethanol Production and Understanding the Factors Influencing the Cellulose Hydrolysis

Gupta, Rajesh (2008-05-15)

Alkaline pretreatments were investigated in connection with bioconversion of lignocellulosic biomass into ethanol. Corn stover and two different batches of hybrid poplar (High Lignin (HL) and Low Lignin (LL)) were the ...

Bioconversion of Corn Stover into Value-Added Chemicals: Dilute Sulfuric Acid Pretreatment, Xylo-Oligosaccharides Production, and Lactic Acid Fermentation

Zhu, Yongming (2005-12-15)

In the first part of this dissertation, dilute-acid pretreatment of corn stover was investigated under high-solids condition using a percolation reactor. High-solids condition in a pretreatment process can lead to high ...

Bioconversion of Lignocellulosic Material into Ethanol: Pretreatment, Enzymatic Hydrolysis, and Ethanol Fermentation

Kim, Tae (2004-12-15)

Four different novel processes, ammonia recycle percolation (ARP), low-liquid ARP, two-stage (hot water-ARP) percolation, and soaking in aqueous ammonia (SAA) at room/moderate temperature, were investigated for pretreatment ...

Cellulose Digestibility, Ethanol Yield, and Lignin Recovery from Corn Stover Fractionated by a Two-Stage Dilute-Acid and Dilute-Alkaline Process

Joiner, David (2005-12-15)

Dilute-acid pretreated corn stover (PCS) from NREL has been delignified using dilute sodium hydroxide extraction to see how this treatment affects enzymatic hydrolysis and simultaneous saccharafication and fermentation ...

Compaction of Switchgrass for Value Added Utilization

Colley, Zahra (2006-05-15)

There are increasing concerns about energy prices, availability and utilization in the world. This has led to many governmental and privately sponsored studies and research on the potential of renewable energy from biomass. ...

Development and Application of the Surface Laser Induced Fluorescence Technique

Donath, Gregory (2008-12-15)

The mechanisms that control the mass transfer of gases across the air-water interface are not well understood. Current models for air and water gas transfer have limited effectiveness because they are based on large scale ...

Gas Phase Desulfurization Using Regenerable Microfibrous Entrapped Metal Oxide Based Sorbents for Logistic PEM Fuel Cell Applications

Yang, Hongyun (2007-08-15)

This dissertation presents results of R&D efforts to develop a thin, low pressure drop, high efficiency zinc oxide based sorbent using glass fibrous media as carrier to remove gaseous sulfur compounds from reformates for ...

Inhibition Study in Biofuels and Biochemicals Production from Lignocellulosic Biomass

Li, Jing (2016-08-26)

Developing biofuels and renewable chemicals from lignocellulosic biomass has great potential to reduce the dependence on fossil fuel and address the environmental issues. However, it encounters several techno-economic ...

Kinetic Investigation and modeling of cellulase enzyme using Non-crystalline cellulose and Cello-oligosaccharides

Peri, Suma (2006-08-15)

Enzymatic hydrolysis of Cellulose depends on many factors; physical properties of substrate (composition, crystallinity, degree of polymerization etc.), enzyme synergy (origin, composition etc.), mass transfer (substrate ...

Membrane Separation in Supercritical Antisolvent Process for Nanoparticle Production

Ono, Kayoko (2006-12-15)

In supercritical antisolvent process to produce pharmaceutical nanoparticles, drug solution is injected into supercritical carbon dioxide. CO2 rapidly extracts the solvent, causing the drug to precipitate as micro- and ...

Microfibrous Entrapped Catalysts and Sorbents: Microstructured Heterogeneous Contacting Systems with Enhanced Efficiency

Kalluri, Ranjeeth (2008-05-15)

Catalyst/adsorbent particles were entrapped in sinter-locked networks of microfibers to form composite materials for use in heterogeneous catalysis and adsorption applications. These novel microstructured materials called ...

Optimization of Ethanol Production from Concentrated Substrate

Um, Byung-Hwan (2007-08-15)

This research optimizes ethanol production from high concentrations of cellulosic substrates in order to produce ethanol economically from renewable resources. This study identifies and quantifies the factors that influence ...

Ozone Removal at Microsecond Contact Time using Microfibrous Entrapped Catalysts

Gu, Qiang (2015-04-29)

Microfibrous Entrapped Catalysts (MFEC) manufactured from 8μm diameter nickel fibers were engineered into pleated heterogeneous catalytic reactors to improve catalytic performance from conventional packed bed and monolith ...

Simultaneous Controlled Release Of Multiple Comfort Molecules And The Production Of Novel High Comfort Contact Lens Materials Through Biphasic Molecular Imprinting

White, Charles, Jr. (2014-12-10)

Contact lens induced dry eye (CLIDE) affects approximately 80% of contact lens wearers. Extrapolating to the world wide population of 300 million contact lens wearers, there are approximately 200 million wearers who express ...

Value-added Bioproducts Development from Lignocellulosic Biomass

Li, Mi (2014-12-10)

Alternative fuels and chemicals from renewable biomass can be used to reduce U.S. dependence on foreign oil, increase national energy security, and address environmental challenges. While renewable biomass can be used for ...