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Investigation of factors affecting t...

Drielak, Edward S.

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Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach.

Record Type:	Electronic resources : Monograph/item
Title/Author:	Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach./
Author:	Drielak, Edward S.
Published:	Ann Arbor : ProQuest Dissertations & Theses, : 2015,
Description:	106 p.
Notes:	Source: Masters Abstracts International, Volume: 55-04.
Contained By:	Masters Abstracts International55-04(E).
Subject:	Engineering. -
Online resource:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=10085642
ISBN:	9781339590677

Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach.
Drielak, Edward S.

Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach. - Ann Arbor : ProQuest Dissertations & Theses, 2015 - 106 p.

Source: Masters Abstracts International, Volume: 55-04.

Thesis (M.S.)--University of Hawai'i at Manoa, 2015.

This item is not available from ProQuest Dissertations & Theses.

Recent concerns over economic and environmental issues associated with fossil-based fuels and products usage have sparked interest in renewable alternatives. Lignocellulosic biomass such as Napier grass (Pennisetum purpureum) can be green processed to generate an additional revenue stream (i.e., juice) and solid fiber stream. Fibers can be converted into biofuels and biobased products, but requires pretreatment to unlock structural sugars. Dilute acid pretreatment has been widely studied due to low cost and its effectiveness in disrupting the biomass structure, however limited research is available on how the factors of acid concentration, time, temperature and solid:liquid ratio and their interactions affect sugar release. To investigate this, two full factorial experimental designs were used. Compositional analysis of the feedstock indicated no significant changes occurred over three separate harvests except for ash content. Statistical analysis indicated that temperature, acid concentration and their interaction had the most impact on sugar release. Solid:liquid ratio had a highly linear relationship to sugar release (i.e., lower solids loading rate yielded higher sugars) and had a significant interaction with temperature. Knowledge about these factors is critical to the optimization, scale up and design of bioprocessing facilities.

ISBN: 9781339590677Subjects--Topical Terms:

586835
Engineering.

Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach.
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245 1 0 $a Investigation of factors affecting the dilute acid pretreatment of napier grass using a full factorial statistical approach.
260 1 $a Ann Arbor : $b ProQuest Dissertations & Theses, $c 2015
300 $a 106 p.
500 $a Source: Masters Abstracts International, Volume: 55-04.
500 $a Adviser: Samir K. Khanal.
502 $a Thesis (M.S.)--University of Hawai'i at Manoa, 2015.
506 $a This item is not available from ProQuest Dissertations & Theses.
520 $a Recent concerns over economic and environmental issues associated with fossil-based fuels and products usage have sparked interest in renewable alternatives. Lignocellulosic biomass such as Napier grass (Pennisetum purpureum) can be green processed to generate an additional revenue stream (i.e., juice) and solid fiber stream. Fibers can be converted into biofuels and biobased products, but requires pretreatment to unlock structural sugars. Dilute acid pretreatment has been widely studied due to low cost and its effectiveness in disrupting the biomass structure, however limited research is available on how the factors of acid concentration, time, temperature and solid:liquid ratio and their interactions affect sugar release. To investigate this, two full factorial experimental designs were used. Compositional analysis of the feedstock indicated no significant changes occurred over three separate harvests except for ash content. Statistical analysis indicated that temperature, acid concentration and their interaction had the most impact on sugar release. Solid:liquid ratio had a highly linear relationship to sugar release (i.e., lower solids loading rate yielded higher sugars) and had a significant interaction with temperature. Knowledge about these factors is critical to the optimization, scale up and design of bioprocessing facilities.
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