【摘 要】
：
With the aim of deep desulfurization,silica-supported polyoxometalate-based ionic liquids were successfully prepared by a one-pot hydrothermal process and employed in heterogeneous oxidative desulfurization of various sulfur compounds.The compositions and
【机 构】
：
Institute for Energy Research, Jiangsu University,Zhenjiang 212013, China;School of Energy and Power
论文部分内容阅读
With the aim of deep desulfurization,silica-supported polyoxometalate-based ionic liquids were successfully prepared by a one-pot hydrothermal process and employed in heterogeneous oxidative desulfurization of various sulfur compounds.The compositions and structures of the hybrid samples were characterized by various methods such as FT-IR,XPS,Raman,UV-Vis,wide-angle XRD and N2 adsorption-desorption.The experimental results indicated that the hybrid materials presented a high dispersion of tungsten species and excellent catalytic activity for the removal of 4,6-dimethyldibenzothiophene without any organic solvent as extractant,and the sulfur removal could reach 100.0％ under mild conditions.The catalytic performance on various substrates was also investigated in detail.After cycling seven cycles,the sulfur removal of the heterogeneous system still reached 93.0％.The GC-MS analysis results demonstrated that the sulfur compound was first adsorbed by the catalyst and subsequently oxidized to its corresponding sulfone.
其他文献
Control of various factors,including mineral components,primary productivity and redox level,on the total organic carbon (TOC) in the lower Cambrian black shale from southeastern margin of Upper Yangtze (Taozichong,Longbizui and Yanbei areas) is discussed
Shale reservoirs are characterized by low porosity and strong anisotropy.Conventional geophysical methods are far from perfect when it comes to the prediction of shale sweet spot locations,and even less reliable when attempting to delineate unconventional
The petroleum geological features of hydrocarbon source rocks in the Oriente Basin in Ecuador are studied in detail to determine the potential of shale gas resources in the basin.The favorable shale gas layer in the vertical direction is optimized by comb
Reconstructing meandering paleo-channels is attracting global research attention.We implemented a novel method by comprehensively integrating migration models and sedimentary structures.Firstly,the migration architectures of the corresponding characterist
Fracture propagation mechanisms in coalbed methane (CBM) reservoirs are very complex due to the development of the internal cleat system.In this paper,the characteristics of initiation and propagation of hydraulic fractures in coal specimens at different
When low-salinity water containing sulfate ions is injected into carbonate reservoirs,rock dissolution and in situ precipitation occur,altering rock permeability and wettability.Particularly,when barium ions are present in formation water,they react chemi
We developed an inversion technique to determine in situ stresses for elliptical boreholes of arbitrary trajectory.In this approach,borehole geometry,drilling-induced fracture information,and other available leak-off test data were used to construct a mat
Supported ionic liquid (IL) catalysts [Cnmim]3PMo12O40/Am TiO2 (amorphous TiO2) were synthesized through a one-step method for extraction coupled catalytic oxidative desulfurization (ECODS) system.Characterizations such as FTIR,DRS,wide-angle XRD,N2 adsor
Owing to the increasingly serious environmental issues caused by the sulfur burnt in fuel,desulfurization has become an important topic.In this work,an amphiphilic oxygen-defective tungsten oxide was synthesized by a colloidal chemistry method.The amphiph
Deep eutectic solvents (DESs) are a new class of green solvents analogous to ionic liquids due to their biodegradable capacity and low cost.However,the direct extractive desulfurization of diesel oil by DESs cannot meet the government\'s standard.In thi