Development of integrated biorefinery model for the production of bioethanol from oil palm frond

Application of an efficient pretreatment step is crucial in developing a viable biorefinery system for the production of lignocellulosic bioethanol. Subcritical hydrothermal appears as an economic pretreatment method with high sugar recovery. However, there were limited reports on its applicat...

Full description

Saved in:

Bibliographic Details
Main Author:	Mohd Yusof, Siti Jamilah Hanim
Format:	Thesis
Language:	English
Published:	2020
Subjects:	Oil palm - By-products - Biotechnology Biomass energy
Online Access:	http://psasir.upm.edu.my/id/eprint/97860/1/FK%202021%2036%20UPMIR.pdf
Tags:	Add Tag No Tags, Be the first to tag this record!

id	my-upm-ir.97860
record_format	uketd_dc
spelling	my-upm-ir.978602022-07-07T00:35:12Z Development of integrated biorefinery model for the production of bioethanol from oil palm frond 2020-11 Mohd Yusof, Siti Jamilah Hanim Application of an efficient pretreatment step is crucial in developing a viable biorefinery system for the production of lignocellulosic bioethanol. Subcritical hydrothermal appears as an economic pretreatment method with high sugar recovery. However, there were limited reports on its application with carbon dioxide (CO2) addition, particularly on oil palm biomass, hence this area should be explored. Moreover, by understanding the mechanism of hemicellulose degradation during pretreatment, the sugar produced hence bioethanol yield could be maximized. Although the integrated biorefinery approach for the production of bioethanol from oil palm frond (OPF) at the oil palm mill was reported promising, assessment of its environmental impact was equally important. Therefore, in this study, subcritical hydrothermal pretreatment of OPF pressed fiber (OPFPF) was conducted using stainless steel tube reactor and miniclave at various temperature, time and CO2 pressure, to evaluate the effect of CO2 addition on glucose production. Similarly, a kinetic study was performed to determine the kinetics of hemicellulose (xylan) degradation during the pretreatment using miniclave. In addition, the environmental and economic viability of integrated biorefinery model for bioethanol production from OPF was assessed by Life Cycle Analysis and cost analysis, each, based on three different case studies. Maximum glucose yield of 57.1% (g/g OPFPF) was obtained with application of tube reactor at 180°C, 1 MPa CO2 for 20 min, and further enhanced to 78.6% using miniclave at similar temperature and pressure for 30 min. Moreover, the rise of temperature and CO2 addition was found to improve the xylan autohydrolysis, with 180°C and 0.5 MPa CO2 as the most suitable condition for high glucose recovery from OPFPF. Furthermore, the integrated biorefinery model for the production of bioethanol from the OPF juice offers the best environmental and economic approach with production cost of $0.25/ L. Based on this study, subcritical hydrothermal pretreatment is a promising method for application at the integrated biorefinery system at the oil palm mill in the future. Oil palm - By-products - Biotechnology Biomass energy 2020-11 Thesis http://psasir.upm.edu.my/id/eprint/97860/ http://psasir.upm.edu.my/id/eprint/97860/1/FK%202021%2036%20UPMIR.pdf text en public doctoral Universiti Putra Malaysia Oil palm - By-products - Biotechnology Biomass energy Hassan, Mohd Ali
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English
advisor	Hassan, Mohd Ali
topic	Oil palm - By-products - Biotechnology Biomass energy
spellingShingle	Oil palm - By-products - Biotechnology Biomass energy Mohd Yusof, Siti Jamilah Hanim Development of integrated biorefinery model for the production of bioethanol from oil palm frond
description	Application of an efficient pretreatment step is crucial in developing a viable biorefinery system for the production of lignocellulosic bioethanol. Subcritical hydrothermal appears as an economic pretreatment method with high sugar recovery. However, there were limited reports on its application with carbon dioxide (CO2) addition, particularly on oil palm biomass, hence this area should be explored. Moreover, by understanding the mechanism of hemicellulose degradation during pretreatment, the sugar produced hence bioethanol yield could be maximized. Although the integrated biorefinery approach for the production of bioethanol from oil palm frond (OPF) at the oil palm mill was reported promising, assessment of its environmental impact was equally important. Therefore, in this study, subcritical hydrothermal pretreatment of OPF pressed fiber (OPFPF) was conducted using stainless steel tube reactor and miniclave at various temperature, time and CO2 pressure, to evaluate the effect of CO2 addition on glucose production. Similarly, a kinetic study was performed to determine the kinetics of hemicellulose (xylan) degradation during the pretreatment using miniclave. In addition, the environmental and economic viability of integrated biorefinery model for bioethanol production from OPF was assessed by Life Cycle Analysis and cost analysis, each, based on three different case studies. Maximum glucose yield of 57.1% (g/g OPFPF) was obtained with application of tube reactor at 180°C, 1 MPa CO2 for 20 min, and further enhanced to 78.6% using miniclave at similar temperature and pressure for 30 min. Moreover, the rise of temperature and CO2 addition was found to improve the xylan autohydrolysis, with 180°C and 0.5 MPa CO2 as the most suitable condition for high glucose recovery from OPFPF. Furthermore, the integrated biorefinery model for the production of bioethanol from the OPF juice offers the best environmental and economic approach with production cost of $0.25/ L. Based on this study, subcritical hydrothermal pretreatment is a promising method for application at the integrated biorefinery system at the oil palm mill in the future.
format	Thesis
qualification_level	Doctorate
author	Mohd Yusof, Siti Jamilah Hanim
author_facet	Mohd Yusof, Siti Jamilah Hanim
author_sort	Mohd Yusof, Siti Jamilah Hanim
title	Development of integrated biorefinery model for the production of bioethanol from oil palm frond
title_short	Development of integrated biorefinery model for the production of bioethanol from oil palm frond
title_full	Development of integrated biorefinery model for the production of bioethanol from oil palm frond
title_fullStr	Development of integrated biorefinery model for the production of bioethanol from oil palm frond
title_full_unstemmed	Development of integrated biorefinery model for the production of bioethanol from oil palm frond
title_sort	development of integrated biorefinery model for the production of bioethanol from oil palm frond
granting_institution	Universiti Putra Malaysia
publishDate	2020
url	http://psasir.upm.edu.my/id/eprint/97860/1/FK%202021%2036%20UPMIR.pdf
_version_	1747813816251449344

Development of integrated biorefinery model for the production of bioethanol from oil palm frond

Similar Items