Biodiesel production from waste cooking oil: An efficient technique to convert waste into biodiesel

Sahar,; Sadaf, Sana; Iqbal, Javed; Ullah, Inam; Bhatti, Haq Nawaz; Nouren, Shazia; Habib-ur-Rehman, _; Nisar, Jan; Iqbal, Munawar

doi:10.1016/j.scs.2018.05.037

Cited by 357 publications

(124 citation statements)

References 34 publications

Supporting

Mentioning

102

Contrasting

Unclassified

Order By: Relevance

“…5, an increase in the methanol-oil ratio corresponds to a decreasing trend in the yield. This is similarly observed in the study of Sahar et al (2018). As explained, higher methanoloil ratio affects the solubility of glycerin which causes a decrease of the FAME yield.…”

Section: Model Fitting Of Wo-rpsupporting

confidence: 79%

“…It is also noticeable that the increase in the catalyst load decreases the FAME yield. It is reported by Sahar et al (2018) that higher catalyst dose favors the soap formation in the reaction mixture which decreases the FAME yield.…”

Section: Effect Of Operating Variables To the Biodiesel Yieldmentioning

confidence: 97%

“…The acid level was determined through titration analysis in accordance with the method described by Sahar et al (2018). Titration was carried out using a manual bottle-top burette with LCD (Brand gmbh.co kg).…”

Section: Acid Value Determinationmentioning

confidence: 99%

“…Triplication of data per sample was done during this process and was calculated using Eq. (1) (Sahar et al 2018), where FFA is the free fatty acid level (%), V is the volume of titrant, N is the normality of titrant and W is the weight of the oil sample.…”

Section: Acid Value Determinationmentioning

confidence: 99%

“…The acid value was determined using titration and computation method, adopting the procedure in the study of Sahar et al (2018). The ash analysis was done following the ASTM 0482-07 (Standard test method for ash from petroleum products) at F.A.S.T Laboratory-Cubao, Philippines.…”

Section: Product Analysis and Characterizationmentioning

confidence: 99%

See 4 more Smart Citations

Response surface optimization of biodiesel yield from pre-treated waste oil of rendered pork from a food processing industry

Gumahin

Galamiton

Allerite

et al. 2019

Bioresour. Bioprocess.

View full text Add to dashboard Cite

In this study, the waste oil of rendered pork (WO-RP) from a food processing industry was studied as a source of biodiesel. The WO-RP was characterized and was found to have a high acid value of 4.30 mg KOH/g. A pre-treatment using H 2 SO 4 was done through the standard titration method that resulted in a reduction of acid value to 0.75 mg KOH/g. The transesterification process over the KOH catalyst was carried out and optimized using the central composite design (CCD) using the Design Expert 7.0 software. The optimum conditions were found at 3:1 methanol-oil molar ratio, 0.55% catalyst loading, and 45-min reaction time. At optimum conditions, the biodiesel yield was 95.28 ± 0.15%. Its chemical characteristics were tested in terms of acid value at 0.75 mg KOH/g, ash content at 0.01 wt%, density at 0.86 g/cm 3 , HHV at 39.98 MJ/kg, water content at 0.10%, and kinematic viscosity at 6.9 mm 2 /s. The FAME profile shows the presence of linoleic, palmitic, oleic and stearic acid as major fatty acid components and functional group shows carbonyl group with traces of carboxylic at 1719 cm −1 and the sharp peak of esters at 1749 cm −1 indicating that the derived product is biodiesel. which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.

show abstract

Section: Model Fitting Of Wo-rpsupporting

confidence: 79%

Section: Effect Of Operating Variables To the Biodiesel Yieldmentioning

confidence: 97%

Section: Acid Value Determinationmentioning

confidence: 99%

Section: Acid Value Determinationmentioning

confidence: 99%

Section: Product Analysis and Characterizationmentioning

confidence: 99%

See 3 more Smart Citations