Improvement of palm oil biodiesel filterability by treatment with reactivated spent bleaching earths

Plata, Vladimir; Rojas, Omar Javier Tijaro; Gauthier‐Maradei, Paola

doi:10.1016/j.fuel.2019.116198

Cited by 15 publications

(6 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The mass losses could be attributable to humidity corresponding to 3.3% of mass loss (<150 C) and to dehydroxylation corresponding to 13.5% of mass loss (<450 C), followed by the decomposition and burning of the residual organic oil contained in SBE (corresponding to 14.5% of mass loss), in agreement with several other studies. [9,12,37] The RSBE lost 1.2% of its mass between 50-200 C and 6.5% between 200-700 C.…”

Section: Characterization Of Adsorbentsmentioning

confidence: 99%

“…Therefore, much research has been devoted to studying SBEs and their various applications. [7,[9][10][11][12][13] Among these studies, the removal of textile dyes by the adsorption technique, which appears to be relatively inexpensive and effective, is widely cited. [7,11,[14][15][16][17] As has been proven, the regenerated spent bleaching earth (RSBE) materials present a strong affinity for methylene blue (MB).…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, much research has been devoted to studying SBEs and their various applications. [ 7,9–13 ] Among these studies, the removal of textile dyes by the adsorption technique, which appears to be relatively inexpensive and effective, is widely cited. [ 7,11,14–17 ]…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Calcium alginate‐regenerated spent bleaching earth composite beads for efficient removal of methylene blue

et al. 2021

View full text Add to dashboard Cite

This study aims to find an alternative method to the landfill of spent bleaching earth (SBE), which is a solid waste generated by the refining of edible oil that causes enormous ecological and environmental problems. This solid waste is clay loaded with impurities, colourants, and a large amount of oil entrained during the various stages of refining. In this study, the SBE was initially regenerated (RSBE) by thermal processing in a muffle furnace (temperature: 400°C, time: 1 h) followed by washing with an HCl solution. Then, the regenerated materials were encapsulated with calcium alginate (Alg) to form adsorbent composite beads (Alg‐RSBE). Different Alg/RSBE ratios were applied during materials elaboration, yielding beads denoted Alg‐RSBE 1/1 (1/1, w/w), Alg‐RSBE 1/2 (1/2, w/w), and Alg‐RSBE 1/3 (1/3, w/w), respectively. The Alg–RSBE composite beads were characterized by several methods (FTIR, SEM, EDX, TGA, pHPZC) and used as adsorbents of methylene blue (MB) in a fixed‐bed adsorption system. The adsorption of MB was studied at different experimental conditions such as contact time and initial MB concentration. The results showed that the kinetics of MB adsorption fitted to pseudo‐second‐order kinetics and the adsorption isotherm fitted to Langmuir isotherm. Among the three types of Alg‐RSBE composite beads, Alg‐RSBE 1/1 presents the highest MB adsorption capacity at 833.33 mg/g. Intraparticle and film diffusion equations were used to evaluate the kinetic data. Finally, the regeneration study showed that MB dye was successfully desorbed from Alg‐RSBE 1/1 with removal percentages from 93.32% to 88.15% after six cycles.

show abstract

Section: Characterization Of Adsorbentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Calcium alginate‐regenerated spent bleaching earth composite beads for efficient removal of methylene blue

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Plata described the usage of regenerated bleaching earth in the filtration process of biodiesel obtained from vegetable oil. Bleaching earth was reactivated by washing with hexane and by treatment with 0.1 M HCl at 500 • C [49].…”

Section: Bleaching Earthmentioning

confidence: 99%

Low-Cost Investment with High Quality Performance. Bleaching Earths for Phosphorus Reduction in the Low-Temperature Bleaching Process of Rapeseed Oil

Łaska-Zieja

Golimowski

Marcinkowski

et al. 2020

Foods

View full text Add to dashboard Cite

Rapeseed oils are a valuable component of the diet. Mostly, there are refined oils deprived of valuable nutrients in the market, hence in recent times cold-pressed and unrefined oils have been available and popular among consumers. However, the low yield of this oil makes this product expensive. The aim of the study was to analyse the effectiveness of phosphorus reduction in crude oils, cold- and hot-pressed in the low-temperature bleaching process. Eight market-available bleaching earths was compared. The effectiveness of 90% was found with 2% (m/m) of Kerolite with hydrated magnesium silicate. An increase in the share of earths to 4% (m/m) resulted in the effectiveness of phosphorus reduction >90% in seven out of eight analysed cases. Bentonite activated with acid with the lowest MgO content was characterised by low efficiency <64%. The research shows that the effectiveness of phosphorus reduction was significantly affected by the composition of earths applied in the bleaching process at ambient temperature. The results of research confirm the high effectiveness of the process as it is not necessary to heat up the oil before the bleaching process. This method is recommended for existing and new industrial plant for two-stage rapeseed oil pressing.

show abstract

“…As a result of the hydroxyl groups in SG that raised its polarity and rendering its very low solubility in biodiesel or biodiesel-petrodiessel blend (Van Hoed et al, 2008). SG have been ascribed as a cause for filter plugging in engine that used biodiesel as fuel extender (Na-Ranong et al, 2015;Plata et al, 2020). Various analytical methods have been developed for the quantification of SG.…”

Section: Introductionmentioning

confidence: 99%

Separation of Steryl Glucoside by Using Various Guard Columns with 100-Å Phenogel Column

Cheewaphan¹

2021

Proceedings of the ‏3rd International Conference on Advanced Research in Applied Science and Engineering

View full text Add to dashboard Cite

Steryl glucoside (SG) are the minor component in plant material and biodiesel. SG are found in many forms, especially linked to a glucoside moiety (SG). The presence of SG may relate to fuel filter plugging problem. SG would be slowly precipitated in the fuel tank. Complete separation may take days or weeks and may accumulate and plug the fuel filter. Accordingly, High-performance size-exclusion chromatography (HPSEC) is the method to analyze SG. Phenogel column was very interesting that all the lipids were separated into their classes, which facilitated the SG separation. This separation on the swelling-controlled styrene-divinylbenzene (ST-DVB) copolymer (phenogel) column. In this work, SG and lipid standards (triacylglycerols; TG, diacylglycerols; DG), fatty acid methyl esters; FAME), free fatty acids; FFA), and monoacylglycerols; MG were investigated by using HPSEC with phenogel column connected with various guard columns. Use guard column with the identical packing materials as in the analytical and preparative columns. Even the guard column has slightly different packing materials that might cause improved separation in mixture compounds. The results demonstrated that the phenogel column connected with C18 (20 mm) guard column by using toluene/THF (100:20, v/v) was suitable for SG separation and shorter analysis time than the others. Thus, this work would demonstrate the C18 guard column should be improved the SG separation from the others and biodiesel products.

show abstract

Improvement of palm oil biodiesel filterability by treatment with reactivated spent bleaching earths

Cited by 15 publications

References 29 publications

Calcium alginate‐regenerated spent bleaching earth composite beads for efficient removal of methylene blue

Calcium alginate‐regenerated spent bleaching earth composite beads for efficient removal of methylene blue

Low-Cost Investment with High Quality Performance. Bleaching Earths for Phosphorus Reduction in the Low-Temperature Bleaching Process of Rapeseed Oil

Separation of Steryl Glucoside by Using Various Guard Columns with 100-Å Phenogel Column

Contact Info

Product

Resources

About