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Nada Ratanapan. Purification of two-step synthesized biodiesel from waste cooking oil using rice husk ash and alum adsorbents. (). King Mongkut's University of Technology North Bangkok. Central Library. : , 2016.
Purification of two-step synthesized biodiesel from waste cooking oil using rice husk ash and alum adsorbents
Name: Saowapa Chotisuwan
Organization :
Prince of Songkla University. Faculty of Science and Technology
Email :
saowapa.c@psu.ac.th
Name: Nada Ratanapan
Organization :
Prince of Songkla University. Faculty of Science and Technology
keyword:
Waste cooking oil
LCSH:
Biodiesel fuels
LCSH:
Purification of gases
Abstract:
Pretreated rice husk with citric acid solution, rice husk ash, alum and anhydrous alum
were used as adsorbents for purification of biodiesel produced from waste cooking oil.
Biodiesel was produced from highly fatty-acid-free waste frying oil with a two-step catalytic
process. Firstly, free fatty acids were esterified with methanol using 0.75 wt % sulfuric acid
as a catalyst. Secondly, triglyceride left over from the first step was transesterified with
methanol in the presence of 1 wt % potassium hydroxide. The reaction was carried out with a
methanol to oil molar ratio of 9:1 at 65ºC for 1 h. Then the obtained biodiesel was purified by
pretreated rice husk, rice husk ash, alum, and anhydrous alum with the adsorbent
concentration of 1, 2, 3, 4 and 5 wt %. The results were compared to a traditional acid
solution (1 wt % phosphoric acid). Chemical compositions of adsorbents were determined by
X-ray fluorescence spectroscopy. The crystallinity and purity of adsorbents were
characterized by X-ray diffraction. The structure and functional group of adsorbents were
characterized by Fourier transform infrared spectroscopy. It was found that the biodiesel
treated with 5 wt % rice husk ash showed excellent results for impurities removal producing
biodiesel with 94% methyl ester.
King Mongkut's University of Technology North Bangkok. Central Library
Address:
BANGKOK
Email:
library@kmutnb.ac.th
Created:
2016
Modified:
2019-11-21
Issued:
2019-11-21
บทความ/Article
application/pdf
BibliograpyCitation :
In Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn and Chulalongkorn University Faculty of science. Pure and Applied Chemistry International Conference (PACCON 2016) (pp.637-640). Bangkok : Chemical Society of Thailand under the Patronage of Professor Dr. HRH Princess Chulabhorn
eng
©copyrights King Mongkut's University of Technology North Bangkok
RightsAccess:
ใช้เวลา
0.034795 วินาที
Saowapa Chotisuwan
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Nada Ratanapan
| Title | Contributor | Type |
|---|---|---|
| Purification of two-step synthesized biodiesel from waste cooking oil using rice husk ash and alum adsorbents
มหาวิทยาลัยเทคโนโลยีพระจอมเกล้าพระนครเหนือ Saowapa Chotisuwan;Nada Ratanapan | บทความ/Article |