A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Oil–water separation process with organoclays: A comparative analysis
https://orcid.org/0000-0002-7979-7272
Abstract This work presents an experimental study focusing on the preparation and characterization of modified green clay with quaternary ammonium salts alkyl dimethyl benzyl ammonium chloride (ADMBAC) and distearyl dimethyl ammonium chloride (DSDMAC) intended to be used as adsorbent in the process of removing oil emulsion in an oil–water system using finite bath. X-ray diffraction (XRD), infrared spectroscopy (IR) and expansion test (adsorption capacity and Foster swelling) measurements were performed in order to evaluate the performance of the ion exchange reactions and the degree of affinity with oil products. There was an increase in the XRD basal spacing of the modified clays (1.96nm and 2.25nm for DSDMAC and ADMBAC salts, respectively) in comparison to the observed value (1.56nm) for the unmodified clay. The IR results revealed that salts were successfully incorporated to clay structure. Based on the expansion tests the organoclays presented the best efficiency of separation, independent on the kind of solvent used in comparison with the unmodified clay performance. The modified clays exhibit a very high capacity of adsorption. The predictions of multiple linear regression models determined based on the factorial design of experiments are excellent.
Highlights Organoclays were prepared via ion exchange reactions using quaternary ammonium salts. The capacity of oil sorption by organoclays was evaluated in a finite bath system. Factorial experimental design was employed to evaluate the oil removal efficiency. The multiple linear regression models exhibited excellent predictions. Expansion tests showed that organoclays exhibited a very high adsorption capacity.
Oil–water separation process with organoclays: A comparative analysis
https://orcid.org/0000-0002-7979-7272
Abstract This work presents an experimental study focusing on the preparation and characterization of modified green clay with quaternary ammonium salts alkyl dimethyl benzyl ammonium chloride (ADMBAC) and distearyl dimethyl ammonium chloride (DSDMAC) intended to be used as adsorbent in the process of removing oil emulsion in an oil–water system using finite bath. X-ray diffraction (XRD), infrared spectroscopy (IR) and expansion test (adsorption capacity and Foster swelling) measurements were performed in order to evaluate the performance of the ion exchange reactions and the degree of affinity with oil products. There was an increase in the XRD basal spacing of the modified clays (1.96nm and 2.25nm for DSDMAC and ADMBAC salts, respectively) in comparison to the observed value (1.56nm) for the unmodified clay. The IR results revealed that salts were successfully incorporated to clay structure. Based on the expansion tests the organoclays presented the best efficiency of separation, independent on the kind of solvent used in comparison with the unmodified clay performance. The modified clays exhibit a very high capacity of adsorption. The predictions of multiple linear regression models determined based on the factorial design of experiments are excellent.
Highlights Organoclays were prepared via ion exchange reactions using quaternary ammonium salts. The capacity of oil sorption by organoclays was evaluated in a finite bath system. Factorial experimental design was employed to evaluate the oil removal efficiency. The multiple linear regression models exhibited excellent predictions. Expansion tests showed that organoclays exhibited a very high adsorption capacity.
Oil–water separation process with organoclays: A comparative analysis
https://orcid.org/0000-0002-7979-7272
Abstract This work presents an experimental study focusing on the preparation and characterization of modified green clay with quaternary ammonium salts alkyl dimethyl benzyl ammonium chloride (ADMBAC) and distearyl dimethyl ammonium chloride (DSDMAC) intended to be used as adsorbent in the process of removing oil emulsion in an oil–water system using finite bath. X-ray diffraction (XRD), infrared spectroscopy (IR) and expansion test (adsorption capacity and Foster swelling) measurements were performed in order to evaluate the performance of the ion exchange reactions and the degree of affinity with oil products. There was an increase in the XRD basal spacing of the modified clays (1.96nm and 2.25nm for DSDMAC and ADMBAC salts, respectively) in comparison to the observed value (1.56nm) for the unmodified clay. The IR results revealed that salts were successfully incorporated to clay structure. Based on the expansion tests the organoclays presented the best efficiency of separation, independent on the kind of solvent used in comparison with the unmodified clay performance. The modified clays exhibit a very high capacity of adsorption. The predictions of multiple linear regression models determined based on the factorial design of experiments are excellent.
Highlights Organoclays were prepared via ion exchange reactions using quaternary ammonium salts. The capacity of oil sorption by organoclays was evaluated in a finite bath system. Factorial experimental design was employed to evaluate the oil removal efficiency. The multiple linear regression models exhibited excellent predictions. Expansion tests showed that organoclays exhibited a very high adsorption capacity.
Oil–water separation process with organoclays: A comparative analysis
Mota, Mariaugusta F. (author) / Rodrigues, Meiry Gláucia F. (author) / Machado, Fabricio (author)
Applied Clay Science ; 99 ; 237-245
2014-06-17
9 pages
Article (Journal)
Electronic Resource
English
Oil–water separation process with organoclays: A comparative analysis
| Online Contents | 2014
Comparative Study of Organoclays with Ionic Surfactant
| British Library Online Contents | 2014
Removing oils FROM WATER with organoclays
| Wiley | 2002
Thermally stable phosphonium-montmorillonite organoclays
| Online Contents | 2008
The Swelling Behavior of Organoclays
| British Library Conference Proceedings | 2007