Emulsification for castor biomass oil

doi:10.1007/s11705-010-0553-2

Front Chem Sci Eng

2011, Vol. 5

Issue (1) : 96-101 https://doi.org/10.1007/s11705-010-0553-2

RESEARCH ARTICLE

Emulsification for castor biomass oil

Dongxiang ZHANG¹(

), Yuanping LIN¹, Anmei LI¹, V. V. TARASOV²

1. School of Chemical Engineering and the Environment, Beijing Institute of Technology, Beijing 100081, China; 2. D.I. Mendeleev University of Chemical Technology of Russia, 125190 Moscow, Russia

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Abstract

The effect of the emulsifier formula on the stability of castor oil-water system was studied through compounding three groups of emulsifiers from the aspects of stability factor of absorbance, centrifuge stability, demulsification time in quiescence, appearance of the droplets, and viscosity. The best emulsifier formula for castor biomass oil was the composite formula of sorbitan monooleate and polyoxyethylene sorbitan monostearate. Correlation exists between the stability of emulsion and the viscosity/particle size of the droplets, with better stability in the case of greater viscosity or narrower distribution of particle size in the emulsion of castor oil-water system.

Methanol added to the castor oil-water system may decrease the viscosity of the emulsion. Comparing the castor oil-water emulsion with methanol-castor oil-water emulsion, the optimal hydrophilic and lipophilic balance (HLB) value based on castor oil-water system was acquired between 6.6 and 7.5, while the optimal HLB value based on the methanol-castor oil-water system was between 5.5 and 6.0. The optimal HLB value of methanol-castor oil-water system gradually moved to that of castor oil-water emulsion with adding more water.

Keywords castor oil biomass oil emulsification stability viscosity corrosivity

Corresponding Author(s): ZHANG Dongxiang,Email:boris@bit.edu.cn

Issue Date: 05 March 2011

Cite this article:

Dongxiang ZHANG,Yuanping LIN,Anmei LI, et al. Emulsification for castor biomass oil[J]. Front Chem Sci Eng, 2011, 5(1): 96-101.

URL:

https://academic.hep.com.cn/fcse/EN/10.1007/s11705-010-0553-2
https://academic.hep.com.cn/fcse/EN/Y2011/V5/I1/96

Fig.1 Influence on the stability factor of absorbance by HLB of the compound emulsifiers

Fig.2 Relationship between HLB of the compound emulsifiers and the centrifuge stability

Tab.1 Influence of HLB on demulsification time in quiescence of castor oil/water emulsion

Fig.3 Emulsions prepared with different systems of compound emulsifiers

Fig.4 Relationship between HLB of the compound emulsifiers and the viscosity of the emulsions

Fig.5 1 castor oil/methanol/water (20 ∶ 4 ∶ 1); 2 castor oil/methanol/water (40 ∶ 9 ∶ 1); 3 castor oil/methanol/water (4 ∶ 1 ∶ 0)
Relationship between HLB of castor oil-methanol-water emulsion and the centrifuge stability

Fig.6 Influence of water content on the appearance of the droplets of the emulsion
(a) castor oil/methanol/water= 4 ∶ 1 ∶ 0; (b) castor oil/methanol/water= 40 ∶ 9 ∶ 1; (c) castor oil/methanol/water= 20 ∶ 4 ∶ 1

Fig.7 1 castor oil/methanol/water= 20 ∶ 4 ∶ 1; 2 castor oil/methanol/water= 40 ∶ 9 ∶ 1; 3 castor oil/methanol/water= 4 ∶ 1 ∶ 0
Relationship between viscosity and HLB in the emulsion of methanol/castor oil/water

Tab.2 Influence of HLB on corrosivity in the emulsion of castor oil-methanol-water

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