Biodiesel purification in one single stage using silica as adsorbent

Manuale, Débora Laura; Greco, Elisabet; Clementz, Adriana Laura; Torres, Gerardo; Vera, Carlos Román; Yori, Juan Carlos

doi:10.1016/j.cej.2014.07.022

Cited by 48 publications

(20 citation statements)

References 21 publications

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“…The FTIR spectra of BB and BBC600 are illustrated in Figure 5. FTIR analysis indicated the presence of PO 23 4 and OHions in all the samples. The 1045 and 962 cm 21 bands were assigned to the stretching vibrations of PO 23 4 ions and Surface area (Sg BET), pore volume (Vp) and mean pore diameter (Dp Wheeler) of supports.…”

Section: Resultsmentioning

confidence: 88%

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Utilization of discard bovine bone as a support for immobilization of recombinant Rhizopus oryzae lipase expressed in Pichia pastoris

Clementz

Peso

Canet

et al. 2016

Biotechnology Progress

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In this study the possibility of using discard bovine bone as support for immobilization of Rhizopus oryzae lipase expressed in Pichia pastoris was analyzed. Discard bovine bone were milled and then subjected to a chemical treatment with acetone in order to remove lipids and blood traces. Two types of supports were evaluated: bovine bone and calcined bovine bone for 2 h at 600°C. Supports were characterized by: ICP, SEM, XRD, FTIR, XPS, and N adsorption isotherms. Calcined bovine bone presented appropriate characteristics for the lipase immobilization due to the removal of collagen: high porosity, large surface area and suitable porous structure. Biocatalysts were prepared with different initial enzyme load. For the equilibrium adsorption studies, the Langmuir isotherm was used to fit the data results. The immobilization occurs in monolayer to a value of 35 UA mg . The activities of biocatalysts were tested in transesterification reaction of olive oil. For the enzyme load used in the test, a final yield percentage of 49.6 was achieved after six methanol additions and 180 min of reaction, similar values were obtained using Relizyme as support. Therefore, the bovine bone discard is an economical and appropriate choice for use support immobilization of enzymes. © 2016 American Institute of Chemical Engineers Biotechnol. Prog., 32:1246-1253, 2016.

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Section: Resultsmentioning

confidence: 88%

“…Figure 2 shows the pore size distribution of both supports, it also include the approximate length of the lipase and the triglycerides. 23,24 As shown in this figure, BBC600 provides an appropriate porous structure so that both, lipase, and triglyceride molecules, can diffuse inside of the pore network.…”

Section: Resultsmentioning

confidence: 99%

Utilization of discard bovine bone as a support for immobilization of recombinant Rhizopus oryzae lipase expressed in Pichia pastoris

Clementz

Peso

Canet

et al. 2016

Biotechnology Progress

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“…Silica selectively adsorbs FFA from the biodiesel phase. Removal of water traces in the biodiesel phase occurs in the bleaching tank simultaneously with adsorption because of the temperature and vacuum conditions employed [14,22,23]. In this sense it must be remarked that at 80°C or slightly higher temperatures water desorption from the adsorbent in the oil only proceeds to a significant degree at vacuum conditions.…”

Section: Process Designmentioning

confidence: 98%

Study of an energy-integrated biodiesel production process using supercritical methanol and a low-cost feedstock

Manuale

Torres

Vera

et al. 2015

Fuel Processing Technology

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“…Though, their application on Jatropha biodiesel is not reported yet. Silica as an adsorbent is reported to remove impurities from crude biodiesel with a single washing stage with an optimum operating condition as follows: 0.2 bar vacuum pressure, 90°C temperature, contact times longer than 45 min, and 1.1% (w/w) SiO 2 adsorbent dosage . Magnisol as an adsorbent is reported to better purification results with a dosage of 1.5–3% (w/w) of crude biodiesel followed by microfiltration.…”

Section: Recent Separation and Purification Techniquesmentioning

confidence: 99%

A review on separation and purification techniques for biodiesel production with special emphasis on Jatropha oil as a feedstock

Suthar

Dwivedi

Joshipura

2019

Asia-Pacific J Chem Eng

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Biodiesel is a promising alternative to conventional fuels. Research on biodiesel has vast experimental findings, but the outcomes are not always unidirectional.The sequence of unit operation for various transesterification processes is studied. The review work emphasizes on the separation and purification of Jatropha-derived biodiesel. The study on the downstream processes of alcohol recovery, glycerol-rich and biodiesel-rich phase separation, and biodiesel purification techniques is the main part of this paper. The biodiesel purification includes wet and dry washing and membrane techniques. The purpose of the review is to find separation techniques that are less energy-intensive and environmentally friendly purification processes for biodiesel production from Jatropha. The strategies to reduce the cost of biodiesel production from Jatropha are discussed. The Jatropha biodiesel possesses huge potential as one of the alternative energy sources for commercial exploitation in India.

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Biodiesel purification in one single stage using silica as adsorbent

Cited by 48 publications

References 21 publications

Utilization of discard bovine bone as a support for immobilization of recombinant Rhizopus oryzae lipase expressed in Pichia pastoris

Utilization of discard bovine bone as a support for immobilization of recombinant Rhizopus oryzae lipase expressed in Pichia pastoris

Study of an energy-integrated biodiesel production process using supercritical methanol and a low-cost feedstock

A review on separation and purification techniques for biodiesel production with special emphasis on Jatropha oil as a feedstock

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