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Araya Srisuwansakda. Fractionation of parawood by hydrothermal and organosolv processes. Master's Degree(Sustainable Energy and Resources Engineering). Kasetsart University. Office of the University Library. : Kasetsart University, 2019.
Fractionation of parawood by hydrothermal and organosolv processes
Name: Araya Srisuwansakda
keyword:
Parawood.
Classification :.LCCS: TP248.65.L54
LCSH:
Lignocellulose
Abstract:
Fractionation of lignocellulosic components is a pre-requisites in biorefineries in order to separate the main compositions of raw material for further maximize the utilization to biofuels, chemicals, and materials. The purpose of this study is to investigate one step (organosolv process) and two-step fractionation comprising of hydrothermal and organosolv processes for the efficient separation of lignocellulosic biomass with a promising recovered yield in term of quality and quantity. In this study, the effects of temperatures, amount of acid and base catalyst and time were studied on a one step and two-step fractionation process of parawood, since it plays a different important role in separation process. It was observed that the optimal conditions of one step process was performed at 220°C for 90 min in the presence of 2%(w/w) of H2SO4, resulting in the efficiency of hemicellulose and lignin removal of 85.82% and 72.54%, respectively. The remaining cellulose was obtained with 96.01%. In two-step process, the optimal conditions of hydrothermal process was performed at 180°C for 60 min in the presence of 3.3%(w/w) of H2SO4 followed by organosolv process which was optimized at 200°C for 60 min with 5%(w/w) of NaOH, resulting in the efficiency of hemicellulose and lignin removal of 87.96% and 46.39%, respectively. The remaining cellulose was 80.22%. In addition, the high recovery of hemicellulose as pentose sugars were observed. These results demonstrated the potentiality of one step process (organosolv process) and two-step process (hydrothermal followed by organosolv process) for fractionation of parawood.
Kasetsart University. Office of the University Library
Address:
Bangkok
Email:
tdckulib@ku.ac.th
Name: Penjit Srinophakun
Role:
Thesis Advisor
Name: Verawat Champreda
Role:
Thesis CO-Advisor
Created:
2019
Modified:
2025-07-07
Issued:
2025-07-07
วิทยานิพนธ์/Thesis
application/pdf
URL: https://www.lib.ku.ac.th/KUthesis/2562/araya-sri-all.pd
CallNumber:
TP248.65.L54 .A72
eng
DegreeName: Master of Engineering
Level: Master's Degree
Descipline: Sustainable Energy and Resources Engineering
Grantor: Kasetsart University
©copyrights Kasetsart University
RightsAccess:
ใช้เวลา
0.029637 วินาที
Araya Srisuwansakda
| Title | Contributor | Type |
|---|---|---|
| Fractionation of parawood by hydrothermal and organosolv processes
มหาวิทยาลัยเกษตรศาสตร์ Araya Srisuwansakda | Penjit Srinophakun | วิทยานิพนธ์/Thesis |
Penjit Srinophakun
Verawat Champreda
| Title | Creator | Type and Date Create |
|---|---|---|
| Optimization of lignin separation process from black liquor using strong acids and supercitical CO2
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Thesis Committee : Prof. Dr. Navadol Laosiripojana Dr. Verawat Champreda Asst. Prof. Dr. Worapon Kiatkittipong Asst. Prof. Dr. Chularat Sakdaronnarong Assoc. Prof. Dr. Artiwan Shotipruk | Natthatida Kunwong | วิทยานิพนธ์/Thesis |
| Optimization of organosolv based fractionation process for separation of high purity lignin from bagasse
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Thesis Committee : Prof. Dr. Navadol Laosiripojana Dr. Verawat Champreda Asst. Prof. Dr. Worapon Kiatkittipong Asst. Prof. Dr. Chularat Sakdaronnarong Assoc. Prof. Dr. Artiwan Shotipruk | Sawitree Cheiwpanich | วิทยานิพนธ์/Thesis |
| A study of reaction pathways in photocatalytic conversion of glucose to high-value chemicals
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| Enhancement of enzymatic hydrolysis and lignin removal of bagasse using photocatalytic pretreatment
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Thesis Committee : Asst. Prof. Dr. Surawut Chuangchote Prof. Dr. Navadol Laosiripojana Dr. Verawat Champreda Dr. Jerawut Kaewsaenee Assoc. Prof. Dr. Thirawuth Pongprayoon | Patcha Pattanapibul | วิทยานิพนธ์/Thesis |
| Photocatalytic conversion of lignin with Ag-doped TiO2 photocatalysts
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มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าธนบุรี Thesis Committee : Asst.Prof.Dr.Chakrit Tachaapaikoon Dr.Verawat Champreda Dr.Pornpan Panichnumsin Asst.Prof.Dr.Wilasinee Yoochatchaval Assoc.Prof.Dr.Chantaraporn Phalakornkule | Sarunyou Wongwilaiwalin | วิทยานิพนธ์/Thesis |
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| Development of biotrickling filter for hydrogen sulfide removal in biogas by autotrophic bacteria
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| Separation of cellulose from corncob using sequential chemical method
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