Degree Type

Thesis

Date of Award

2012

Degree Name

Master of Science

Department

Agricultural and Biosystems Engineering

First Advisor

Chenxu Yu

Second Advisor

Tae Hyun Kim

Abstract

To improve the chemical pretreatment efficiency of bio-ethanol, a photocatalyst assisted alkaline approach was developed to remove lignin structure and increase the amount of fermentable component in lignocellulosic biomass (corn stover). Two kinds of base tested in this study were aqueous ammonia and sodium hydroxide, respectively. Due to the high volatility, a special experimental design was used in ammonia pretreatment, which limited the UV penetration, hence only moderate improvement on enzymatic digestibility of the treated biomass could be obtained through the photocatalyst-assisted photodegradation. Meanwhile, testing with sodium hydroxide yielded elevated delignification result and confirmed that the UV penetration played an essential role in photocatalytic treatment.

Copyright Owner

Chao Wang

Language

en

File Format

application/pdf

File Size

69 pages

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