Separation of n-butane from soybean oil mixtures using membrane processes

Tres, Marcus V.; Mohr, Stefany; Corazza, Marcos L.; Luccio, Marco Di; Oliveira, J. Vladimir

doi:10.1016/j.memsci.2009.02.008

Cited by 43 publications

(30 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Tested membranes were hexane-resistant and suitable for use with n-hexane. Tres et al [20] show a high potential NF membrane application for the separation of refined soybean oil from a mixture of this oil in liquid n-butane. Raman et al [5] applied a commercial available NF membrane to recover n-hexane, observing that membrane technology can reduce 50% of the consumption energy compared to an evaporation unit.…”

Section: Introductionmentioning

confidence: 99%

Performance of Nanofiltration Membranes for Solvent Purification in the Oil Industry

Darvishmanesh

Robberecht

Luis

et al. 2011

J Americ Oil Chem Soc

View full text Add to dashboard Cite

The extraction stage of edible oil in the oil industry is commonly performed by using toxic solvents (e.g. hexane) and processes with high energy consumption (e.g. distillation, evaporation) to recover the solvent, which represents around 70-75 wt% in the oil-solvent mixture. In this paper, a membrane-based extraction method using nanofiltration (NF) membranes is presented. Commercial nanofiltration membranes made of different polymers (Desal-DK-polyamide NF from GE-osmonics Ò , NF30 polyethersulfone NF from Nadir Ò , STARMEM TM 122 polyimide from MET Ò and SOLSEP NF030306 silicone base polymer SOLESP Ò ) were selected and tested to recover the solvent from soybean oil/solvent (10-20-30% w/w oil) mixtures at various separation pressures and constant temperature in a dead-end filtration set up. The selection of the solvent was made in order to compare solvents obtainable from renewable resources, such as ethanol, iso-propanol and acetone, with solvents traditionally used in the industry (i.e. cyclohexane and n-hexane). The structural stability of the membranes towards the different solvents used in this work was verified visually, by the variation of the membrane area and by means of permeate flux assessments. Desal-DK and NF30 showed poor filtration performance and even visible defects after exposure to acetone but a good performance was obtained for the nanofiltration membranes STARMEM TM 122 and SOLSEP NF030306 with ethanol, iso-propanol and acetone. For example, considering a mixture with 30% edible oil in acetone, STARMEM TM 122 shows a flux and oil rejection of 16.8 L m -2 h and 70%, respectively. For the same conditions, SOLSEP NF030306 exhibited a flux of 4.8 L m -2 h with 78% rejection, which shows the potential application of nanofiltration membranes in the oil industry.

show abstract

Section: Introductionmentioning

confidence: 99%

Performance of Nanofiltration Membranes for Solvent Purification in the Oil Industry

Darvishmanesh

Robberecht

Luis

et al. 2011

J Americ Oil Chem Soc

View full text Add to dashboard Cite

show abstract

“…In fact, in case of using propane and/or n-butane as extracting fluid, some strategy should be adopted to solvent recuperation because the amount of gas dissolved in the bulk oil phase may not be negligible [6,15], even when a membrane separation scheme is proposed to minimize costs associated with recompression, avoiding solvent phase transition from the liquid to vapour state [16]. Thus, the knowledge of the amount of gas dissolved after extraction may be relevant to allow the estimation of kinetics of solvent desorption.…”

Section: Introductionmentioning

confidence: 99%

Low-pressure solubility of propane and n-butane in refined soybean oil

Tres

Mohr

Luccio

et al. 2009

The Journal of Chemical Thermodynamics

View full text Add to dashboard Cite

“…Stafie et al (2004) studied the permeation of sunflower oil/hexane mixture in polyacrylonitrile/polydimethylsiloxane composite membranes. Tres et al (2009Tres et al ( , 2014 examined several polymeric and ceramic commercial membranes for the separation of n-butane and n-hexane from refined soybean. A study on simultaneous degumming, dewaxing and decolorizing crude rice bran oil using two commercial nonporous polymeric composite hydrophobic membranes was performed by Manjula and Subramanian (2009).…”

Section: Introductionmentioning

confidence: 99%

Simultaneous improvement in solvent permeability and deacidification of soybean oil by nanofiltration

et al. 2017

View full text Add to dashboard Cite

In this paper, soybean oil deacidification and hexane removal using laboratory scale solvent resistance nanofiltration membranes based technique is presented. Composite nanofiltration membranes made of different polymers poly(vinylideneflouride) (PVDF), polydimethylsiloxane (SI), polycarbonate (PC), and glycerol were tested to remove the hexane and free fatty acid (FFA) from soybean oil/hexane miscella (oil feed solution 10, 25, and 35% w/w) at 20 bar of transmembrane pressure and 30°C, in a dead-end filtration set up. All membranes tested showed low fouling phenomena and high stability in the presence of hexane throughout the membrane pre-treatment and permeation procedure. The PVDF-10SI-1PC membrane showed the best performance achieving a miscella permeability of L m = 6.8 9 10 -6 L (h m bar) -1 , oil and FFA sieving efficiency of b (oil) = 0.21(80% of oil rejection) and b FFA = 2.43 (27% of FFA removal), respectively, at oil feed concentration of 25%. Apart from these specific properties, the PVDF-10SI-1PC membrane presented excellent mechanical and chemical resistances and low reversible fouling. The results demonstrate that membrane technology can attain a high efficiency in the simultaneous solvent recovery and deacidification of oil/ hexane miscella commonly processed in the soybean oil industry.

show abstract

Separation of n-butane from soybean oil mixtures using membrane processes

Cited by 43 publications

References 35 publications

Performance of Nanofiltration Membranes for Solvent Purification in the Oil Industry

Performance of Nanofiltration Membranes for Solvent Purification in the Oil Industry

Low-pressure solubility of propane and n-butane in refined soybean oil

Simultaneous improvement in solvent permeability and deacidification of soybean oil by nanofiltration

Contact Info

Product

Resources

About