首页|Oxidative Desulfurization of Fuel Oil with H3PO4-based Deep Eutectic Solvents
Oxidative Desulfurization of Fuel Oil with H3PO4-based Deep Eutectic Solvents
扫码查看
点击上方二维码区域，可以放大扫码查看
原文链接
NETL
NSTL
万方数据
A series of Lewis-acid deep eutectic solvents(DESs)were synthesized by stirring phosphoric acid and zinc chloride as raw materials at 80 ℃ to form H3PO4/n ZnCl2(n=0.1,0.25,0.5,0.75,1).The DESs were characterized by Fourier transform infrared spectrophotometry(FT-IR),thermogravimetry/differential thermogravimetry(TG/DTG),and electron spray ionization mass spectrometry(ESI-MS).The DESs were used as both extractants and catalysts to remove dibenzothiophene from fuels via oxidative desulfurization(ODS).Experiments were performed to investigated the influence of factors such as composition of DES,temperature,oxidant dosage(molar ratio of O:S),DES dosage(volume ratio of DES:oil),and number of cycles on desulfurization rate.The results indicated that the removal rate of dibenzothiophene(DBT)was affected by the Lewis acidic DESs,with that of H3PO4/0.25∙ZnCl2 reaching 96.4%under optimal conditions(Voil=5 mL,VDES=1 mL,an oxidant dosage of 6,T=50℃).After six cycles,the desulfurization rate of H3PO4/0.25∙ZnCl2 remained above 94.1%.The apparent activation energy of dibenzothiophene(DBT)removal reaction was determined by a pseudo-first order kinetic equation according to the Arrhenius equation to be 32.34 kJ/mol,as estimated.A reaction mechanism is proposed based on the experimental data and characterization results.
deep eutectic solventsphosphoric acidzinc chlorideoxidative desulfurization
Li Xiuping、Zhang Jiayin、Hou Liangpei、Zhao Rongxiang
展开 >
School of Petrochemical Engineering,Liaoning Petrochemical University,Fushun 113001,China
NETL
NSTL
万方数据
