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| 1 | Study on extraction of thiophene from model gasoline with brønsted acidic ionic liquids显示文摘Brønsted acidic ionic liquids(ILs),N-methylimidazole hydrogen sulfate([HMIm]HSO_(4))and N-methylpyrrolidone hydrogen sulfate([HNMP]HSO_(4)),are synthesized and employed as extractants to extract thiophene from model gasoline(thiophene dissolved in noctane).The effect of extraction temperature,extraction time and volume ratio of ILs to model gasoline on desulfurization rates is investigated.Then,the optimal desulfurization conditions are obtained:the ratio of ILs to model gasoline is 1∶1,extraction temperature is 50℃ for[HMIm]HSO_(4)and 60℃ for[HNMP]HSO_(4),extraction time is 60 min.Meanwhile,the desulfurization rate of[HNMP]HSO_(4)for model gasoline is 62.8%,which is higher than that of[HMIm]HSO_(4)(55.5%)under optimal conditions.The reason is discussed on the basis of the interaction energy between thiophene and ILs at the B3LYP/6-311++G(d,p)level.Furthermore,the total desulfurization rate of[HNMP]HSO_(4)and[HMIm]HSO_(4)reaches 96.4%and 94.4%,respectively,by multistage extraction.Finally,the used ILs can be reused by vacuum drying,and their desulfurization rates are not significantly decreased after recycling 7 times in single-stage desulfurization. | Xiaomeng WANG Mingjuan HAN Hui WAN Cao YANG Guofeng GUAN | 2011 | Frontiers of Chemical Science and Engineering2011，5，1： | 3 |
| 2 | Removal of Thiophene and Its Derivatives from Model Gasoline Using Polymer-Supported Metal Chlorides Ionic Liquid Moieties 显示文摘 | Wang Xiaomeng Wan Hui Han Mingjuan | 2012 | Ind Eng Chem Res2012，51，8： | 1 |
| 3 | Photocatalytic degradation of organic pollutants in purified terephthalic acid wastewaterwith activated carbon supported titanium dioxide 显示文摘 | Chen Yuefeng Wan Hui Han Mingjuan | 2009 | Energy and Environment Technology2009，2，： | 1 |
| 4 | Study on extraction of thiophene from model gasoline with bronsted acidic ionic liquids显示文摘 | Wang Xiaomeng Han mingjuan | 2011 | Front Chem Sci Eng2011，5，1： | 1 |
| 5 | Photocatalytic degradation of organic pollutants in purified terephthalic acid wastewater with activated carbon supported titanium dioxide显示文摘 | Chen Yuefeng Wan Hui Han Mingjuan | 2009 | Energy and Environment Technology2009，，： | 1 |
| 6 | Uniform local well-posedness and inviscid limit for the Benjamin-Ono-Burgers equation显示文摘In this paper,we study the Cauchy problem for the Benjamin-Ono-Burgers equation ∂_(t)u−ϵ∂^(2)/_(x)u+H∂^(2)_(x)u+uu_(x)=0,where H denotes the Hilbert transform operator.We obtain that it is uniformly locally well-posed for small data in the refined Sobolev space H~σ(R)(σ■0),which is a subspace of L2(ℝ).It is worth noting that the low-frequency part of H~σ(R)is scaling critical,and thus the small data is necessary.The high-frequency part of H~σ(R)is equal to the Sobolev space Hσ(ℝ)(σ■0)and reduces to L2(ℝ).Furthermore,we also obtain its inviscid limit behavior in H~σ(R)(σ■0). | Mingjuan Chen Boling Guo Lijia Han | 2022 | Science China Mathematics2022，65，8： | 0 |
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