Optimization and kinetics of the desulfurization of diesel fuel via high shear mixing oxidation assisted by adsorption of sulfones onto chitosan-coated bentonite

doi:10.1080/15435075.2018.1529587

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標題:	Optimization and kinetics of the desulfurization of diesel fuel via high shear mixing oxidation assisted by adsorption of sulfones onto chitosan-coated bentonite
作者:	De Luna, Mark Daniel G. Futalan, Cybelle M. Duavis, Ayesha G. Wan, Meng-Wei
貢獻者:	Univ Philippines, Dept Chem Engn Dong A Univ, Natl Res Ctr Disaster Free & Safe Ocean City Univ Philippines, Natl Grad Sch Engn, Environm Engn Program Chia Nan Univ Pharm & Sci, Dept Environm Resources Management
關鍵字:	Adsorption box-behnken design diesel fixed bed adsorption mixing-assisted oxidative desulfurization
日期:	2018-12-08
上傳時間:	2019-11-15 15:48:16 (UTC+8)
出版者:	TAYLOR & FRANCIS INC
摘要:	Rapid increase in the worldwide consumption of fuel has resulted in environmental and health hazards arising from elevated concentrations of sulfur dioxide and sulfate particulate matter in the atmosphere. In this study, the reduction of the sulfur content in commercial diesel with an initial concentration of 1428 ppm was carried out via oxidative desulfurization (ODS) assisted by high shear mixing using hydrogen peroxide as oxidant and phosphotungstic acid as catalyst in combination with the fixed-bed adsorption of sulfur compounds onto chitosan-coated bentonite (CCB) and activated carbon (AC). The effects of mixing speed (8,000-12,000 rpm), oxidation temperature (60-80oC), and oxidation time (20-40 min) on sulfur removal were analyzed using the response surface methodology based on the Box-Behnken Design. Results show that the maximum sulfur removal of 81.97% could be attained at the following optimum conditions: 12,000 rpm, 80 degrees C, and 34 min. Fixed-bed studies illustrated that CCB (0.2 mm) has higher adsorption efficiency of 82.66% than AC of 63.24% in the removal of sulfones from diesel.
link:	http://dx.doi.org/10.1080/15435075.2018.1529587
關聯:	Drugs-Education Prevention and Policy, v.15, n.14-15, pp.930-940
显示于类别:	[環境資源管理系(所)] 期刊論文

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