Please use this identifier to cite or link to this item: https://dspace.ctu.edu.vn/jspui/handle/123456789/5240
Title: In situ transesterification of wet activated sludge under subcritical conditions
Authors: Trần, Nguyễn Phương Lan
Huỳnh, Liên Hương
Ju, Yi-Hsu
Go, Alchris Woo
Keywords: Activated sludge
Biodiesel
Subcritical condition
Transesterifcation
Issue Date: 2014
Series/Report no.: Journal of Petroleum and Environmental Biotechnology;5 .- p.1-3
Abstract: Commercial production of biodiesel uses refned vegetable as the feedstock with base as the catalyst. However, pure vegetable oil contributes up to 80% of the overall biodiesel production cost. Activated sludge is a rich source of lipid and a potential feedstock for biodiesel production. It was estimated that drying and oil extraction constitutes more than 50% of the cost of biodiesel production from wet activated sludge. In this study, wet activated sludge was directly used as the feedstock to react with methanol under subcritical water condition. At 250°C and a methanol to wet sludge ratio of 3.0 mL/g, a Fatty Acid Methyl Ester (FAME) yield of 33% can be achieved in 4 h. Acetic acid was employed as the catalyst to decrease the amount of methanol to 2.25 mL/g and reaction time to 1 h that were required to reach the same FAME yield (33%). This process can be applied to maximize biodiesel conversion of feedstock with high FFA and moisture contents.
URI: http://localhost:8080//jspui/handle/123456789/5240
Appears in Collections:Tạp chí quốc tế

Files in This Item:
File Description SizeFormat 
_file_511.01 kBAdobe PDFView/Open
Your IP: 18.217.14.208


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.