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Optimization of Acid Hydrolysis in Ethanol Production from Prosopis Juliflora by Temesgen Atnafu (2013, Trade Paperback)

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Master's Thesis from the year 2012 in the subject Engineering - Chemical Engineering, Addis Ababa University, language: English, abstract: Lignocellulosic materials (eg.Prosopis juliflora) can be utilized to produce ethanol, a promising alternative energy source for the limited crude oil. This study involved optimisation of acid hydrolysis in ethanol production from prosopis juliflora. The conversion of prosopis juliflora to ethanol can be achieved mainly by three process steps: pretreatment of prosopis juliflora wood to remove lignin and hemicellulose, acid hydrolysis of pretreated prosopis juliflora to convert cellulose into reducing sugar(glucose) and fermentation of the sugars to ethanol using Saccharomyces cerevisiae in anaerobic condition. A two level full factorial design with four factors, two levels and two replicas (24*2=32 experimental runs) was applied to optimize acid hydrolysis and study the interaction effects of acid hydrolysis factors, namely, acid concentration, solid fraction, temperature, and time. An optimization was carried out to optimize acid hydrolysis process variables so as to determine the best acid concentration, solid fraction, temperature, and contact time that resulted maximum ethanol yield. The screening of significant acid hydrolysis factors were done by using the two-level full factorial design using design expert(R) 7 software. The statistical analysis showed that the ethanol yield of (40.91% (g/g)) was obtained at optimised acid hydrolysis variables of 0.5%v/v acid concentration, 5%w/w solid fraction,105.01 C temperature, and 10 minutes hydrolysis time. Keywords: Prosopis juliflora, pretreatment, hydrolysis, fermentation, 2 level factorial, optimization.

Product Identifiers

Publisher
GRIN Verlag Gmbh
ISBN-10
3656331499
ISBN-13
9783656331490
eBay Product ID (ePID)
168299720

Product Key Features

Book Title
Optimization of Acid Hydrolysis in Ethanol Production from Prosopis Juliflora
Author
Temesgen Atnafu
Format
Trade Paperback
Language
English
Topic
General
Publication Year
2013
Genre
Technology & Engineering
Number of Pages
108 Pages

Dimensions

Item Length
8.3in
Item Height
0.3in
Item Width
5.8in
Item Weight
5.5 Oz

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Optimization of Acid Hydrolysis in Ethanol Production from Prosopis Juliflora by Temesgen Atnafu (2013, Trade Paperback)

About this product

Product Information

Product Identifiers

Product Key Features

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Best Selling in Books

The Holistic Guide to Wellness : Herbal Protocols for Common Ailments by Nicole Apelian (2023, UK- A Format Paperback)

Outlive Gifford Bil (2023,Paperback)

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For Love of Country : Leave the Democrat Party Behind by Tulsi Gabbard (2024, Hardcover)

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Clydesdale Classics Ser.: Meditations : Complete and Unabridged by Marcus Aurelius (2018, Trade Paperback)

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