Reduction of free fatty acids in waste oil for biodiesel production by glycerolysis: investigation and optimization of process parameters

Mićić, Radoslav; Tomić, Milan D.; Martinović, Ferenc; Kiss, Ferenc; Simikić, Mirko; Aleksić, A.

doi:10.1515/gps-2017-0118

Cited by 41 publications

(20 citation statements)

References 19 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Let A, A * denote a Leonard pair on V. We can determine whether A, A * is se By [13,Lemma 1.3] each eigenspace of A, A * has dimension one.…”

Section: Introductionmentioning

confidence: 99%

“…The use of edible oils in biodiesel production is not advisable inview of its demand in processing of food. Non-edible oils which do not have many commercial applications and are also cost effective and excellent alternatives to overcome this issue [10][11][12][13]. Transesterification is one of the most widely used methods for producing biodiesel from vegetable oils, catalytically.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

Bharadwaj

Singh

Niju

et al. 2019

Green Processing and Synthesis

View full text Add to dashboard Cite

In the present study, Calcium oxide (CaO) obtained from eggshells has been used as a heterogeneous catalyst for biodiesel production from highly viscous non-edible rubber seed oil (RSO). Characterization of synthesized catalyst was done with the help of scanning electron microscope equipped with Energy dispersive spectrometry (SEM-EDS), X-ray diffraction (XRD) and Fourier transform Infrared spectroscopy (FTIR). Response surface methodology (RSM) with central composite design (CCD) was used to optimize the process parameters and 1H-NMR (Nuclear Magnetic Resonance) spectroscopy analysis was performed to find the conversion of RSO to biodiesel. A conversion of 99.7% of RSO to biodiesel was obtained at 12:1 methanol to oil molar ratio, 4 (wt%) of catalyst, and 3 hour reaction time with a quadratic regression model of R2 of value 0.9566 was obtained. The composition of prepared biodiesel is estimated with the help of Gas Chromatogram-Mass Spectroscopy (GC-MS) analysis. Artificial Neural Network (ANN) with Levenberg-Marquardt algorithm was also trained to predict biodiesel conversion and the value of R2 obtained was 0.9976. It was observed that predicted conversion values from ANN were better when compared to prediction using RSM.

show abstract

“…Let A, A * denote a Leonard pair on V. We can determine whether A, A * is se By [13,Lemma 1.3] each eigenspace of A, A * has dimension one.…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

Bharadwaj

Singh

Niju

et al. 2019

Green Processing and Synthesis

View full text Add to dashboard Cite

show abstract

“…The glycerolysis can be exploited for increasing the added value of the starting materials (WCOs) by transforming the free fatty acids (FFA) contained in the waste into added-value chemicals. Monoand di-glycerides are used as surfactants [43] or as emulsifiers in the food, cosmetic, and pharmaceutical industry [44], while tri-glycerides are employed as additives in bio-diesel production [45,46].…”

Section: Of 13mentioning

confidence: 99%

Available Technologies and Materials for Waste Cooking Oil Recycling

et al. 2020

View full text Add to dashboard Cite

Recently, the interest in converting waste cooking oils (WCOs) to raw materials has grown exponentially. The driving force of such a trend is mainly represented by the increasing number of WCO applications, combined with the definition, in many countries, of new regulations on waste management. From an industrial perspective, the simple chemical composition of WCOs make them suitable as valuable chemical building blocks, in fuel, materials, and lubricant productions. The sustainability of such applications is sprightly related to proper recycling procedures. In this context, the development of new recycling processes, as well as the optimization of the existing ones, represents a priority for applied chemistry, chemical engineering, and material science. With the aim of providing useful updates to the scientific community involved in vegetable oil processing, the current available technologies for WCO recycling are herein reported, described, and discussed. In detail, two main types of WCO treatments will be considered: chemical transformations, to exploit the chemical functional groups present in the waste for the synthesis of added value products, and physical treatments as extraction, filtration, and distillation procedures. The first part, regarding chemical synthesis, will be connected mostly to the production of fuels. The second part, concerning physical treatments, will focus on bio-lubricant production. Moreover, during the description of filtering procedures, a special focus will be given to the development and applicability of new materials and technologies for WCO treatments.

show abstract

“…Waste cooking oil is potential feedstock to be developed since it is non-edible oil and large availability. Thus, it has potential for mass production [1]. However, it has problems to be biodiesel feedstock due to its free fatty acid content.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Reducing Ffa Content of Waste Cooking Oil by Using Response Surface Methodology

Primandari

Arafat²,

Karudin³

2020

Preprint

View full text Add to dashboard Cite

Waste cooking oil has high free fatty acid (FFA). It impact to low yield of biodiesel production. Thus, reducing FFA is one of important process as feedstock of biodiesel. This study aims to investigate the optimum condition of three important process variables which are acid concentration, molar ratio of methanol and oil, and irradiation time with the 45oC of irradiation temperature for reducing FFA. The synthesis is assisted by ultrasonic irradiation. It conducted by acid esterification with H2SO4 and methanol. Optimization is conducted by Response Surface Methodology (RSM) with central composite design (CCD). The optimum condition of response for reducing FFA less than 1% were found to be 7.22:1 of methanol to oil molar ratio, 0.92% wt of H2SO4, and 26.04 minutes of irradiation time. It has been observed that ultrasonic system reduces FFA content significantly compared to conventional method.

show abstract

Reduction of free fatty acids in waste oil for biodiesel production by glycerolysis: investigation and optimization of process parameters

Cited by 41 publications

References 19 publications

Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

Biodiesel production from rubber seed oil using calcium oxide derived from eggshell as catalyst – optimization and modeling studies

Available Technologies and Materials for Waste Cooking Oil Recycling

Optimization of Reducing Ffa Content of Waste Cooking Oil by Using Response Surface Methodology

Contact Info

Product

Resources

About