Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide
Bioethanol production from sago pith waste (SPW) using microwave hydrothermal hydrolysis accelerated by carbon dioxide was studied. The structural change in the SPW after hydrolysis, ethanol purity after fermentation, and distillation were investigated. Energy consumption for microwave hydrotherma...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier Ltd.
2014
|
| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/13852/ http://ir.unimas.my/id/eprint/13852/1/Abu%20Saleh.pdf |
| _version_ | 1848837507891855360 |
|---|---|
| author | Thangavelu, S.K. Abu Saleh, Ahmed Ani, F.N. |
| author_facet | Thangavelu, S.K. Abu Saleh, Ahmed Ani, F.N. |
| author_sort | Thangavelu, S.K. |
| building | UNIMAS Institutional Repository |
| collection | Online Access |
| description | Bioethanol production from sago pith waste (SPW) using microwave hydrothermal hydrolysis accelerated
by carbon dioxide was studied. The structural change in the SPW after hydrolysis, ethanol purity
after fermentation, and distillation were investigated. Energy consumption for microwave hydrothermal
hydrolysis was evaluated. A maximum of 43.8% theoretical glucose and 40.5% theoretical ethanol yield
were obtained. The ethanol yield coefficient obtained in fermentation was 0.47 (g ethanol per g glucose)
which was 15.6 g ethanol per 100 g dry SPW. It was also discovered that the lowest energy consumption
occurred when energy input was fixed at 108 kJ (900W for 2 min), amounting to 33 kJ and 69 kJ to produce
one gram glucose after hydrothermal hydrolysis and one gram ethanol after fermentation, respectively.
The developed technique for SPW resulted in higher energy saving compared to previous
techniques in the absence of enzymes, acid or base catalyst |
| first_indexed | 2025-11-15T06:40:46Z |
| format | Article |
| id | unimas-13852 |
| institution | Universiti Malaysia Sarawak |
| institution_category | Local University |
| language | English |
| last_indexed | 2025-11-15T06:40:46Z |
| publishDate | 2014 |
| publisher | Elsevier Ltd. |
| recordtype | eprints |
| repository_type | Digital Repository |
| spelling | unimas-138522021-06-29T16:32:30Z http://ir.unimas.my/id/eprint/13852/ Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide Thangavelu, S.K. Abu Saleh, Ahmed Ani, F.N. TS Manufactures Bioethanol production from sago pith waste (SPW) using microwave hydrothermal hydrolysis accelerated by carbon dioxide was studied. The structural change in the SPW after hydrolysis, ethanol purity after fermentation, and distillation were investigated. Energy consumption for microwave hydrothermal hydrolysis was evaluated. A maximum of 43.8% theoretical glucose and 40.5% theoretical ethanol yield were obtained. The ethanol yield coefficient obtained in fermentation was 0.47 (g ethanol per g glucose) which was 15.6 g ethanol per 100 g dry SPW. It was also discovered that the lowest energy consumption occurred when energy input was fixed at 108 kJ (900W for 2 min), amounting to 33 kJ and 69 kJ to produce one gram glucose after hydrothermal hydrolysis and one gram ethanol after fermentation, respectively. The developed technique for SPW resulted in higher energy saving compared to previous techniques in the absence of enzymes, acid or base catalyst Elsevier Ltd. 2014 Article PeerReviewed text en http://ir.unimas.my/id/eprint/13852/1/Abu%20Saleh.pdf Thangavelu, S.K. and Abu Saleh, Ahmed and Ani, F.N. (2014) Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide. Applied Energy. ISSN 0306-2619 http://dx.doi.org/10.1016/j.apenergy.2014.04.076 http://dx.doi.org/10.1016/j.apenergy.2014.04.076 |
| spellingShingle | TS Manufactures Thangavelu, S.K. Abu Saleh, Ahmed Ani, F.N. Bioethanol production from sago pith waste using microwave hydrothermal hydrolysis accelerated by carbon dioxide |
| title | Bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| title_full | Bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| title_fullStr | Bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| title_full_unstemmed | Bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| title_short | Bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| title_sort | bioethanol production from sago pith waste using microwave
hydrothermal hydrolysis accelerated by carbon dioxide |
| topic | TS Manufactures |
| url | http://ir.unimas.my/id/eprint/13852/ http://ir.unimas.my/id/eprint/13852/ http://ir.unimas.my/id/eprint/13852/ http://ir.unimas.my/id/eprint/13852/1/Abu%20Saleh.pdf |