Ionic liquid (IL) is a type of molten salt at room temperature which are composed of anions and cations. It is a novel kind of green solvent and catalyst with excellent performance. However, it is 1imited to be widely used in different fields because of high price, large dosage, inconvenient separation. One of the effective approaches is to immobilize the ionic liquid on inorganic or organic solid material. Supported perrhenate ionic liquid was prepared using MCM-41 zeolites as carrier by chemical method in this paper. The supported ionic liquid was characterized and analyzed by FT-IR, TG, XRD and nitrogen adsorption desorption. The results showed that the ionic liquid was successfully bonded to the surface of MCM-41, and the decomposition temperature of the supported ionic liquid was between 280~680 ℃. Although the pore size and specific surface area of MCM-41 decreased after loading IL, its bulk structure was not damaged.

aking example for T21 Aluminumtriethide tank, introducing the whole finite analysis process of  portable tank, a finite model for thin shell element and solid element was established, and has been taken into account. The optimal structure designing of vessel supports was accomplished, the analysis results indicated the portable tank by the motion direction of the inertial force and saddle structure before and after optimization should force changes in the larger, saddle before optimization of the maximum stress was 38.89 MPa, saddle after optimization of the maximum stress was 130.58 MPa.

The finite element analysis software ANSYS was used to propose a parametric model and analysis for four corners tower of feed tank. Considering the multiform work condition load of internal pressure, liquid static pressure, wind load and seismic load, implement optimum was designed for structure of flat head. According to moment of flexion about bearing ring flatplate, the size and quantities for foundation bolt were counted. The strength calculation of the whole equipment was completed, which laid a foundation for further detailed design and manufacture. The results show that production was of certain guiding meaning for the four corners tower engineering design.

The regeneration of thiophene saturated ionic liquid obtained after desulfurization of gasoline were studied. Cyclopentane was used as the extractant to regenerate the ionic liquid( \[C8MIM\] BF4). The dosage of cyclopentane, extraction time and extraction temperature were examined. The optimal operation condition, where V(ionic liquid)∶V(cyclopentane)=1∶2 at 35 ℃ for 15 min were obtained. Under the optimal condition, the backextraction rate of the ionic liquid can reach 8238%. The recovered ionic liquid was further applied to the desulfurization of model oil, and the desulfurization rate can reach 62.37%. 

According to FCC（catalytic cracking）gasoline desulfurization, a set of test device was designed. The working principle of the experimental device and the selection of the key equipment were introduced in the article. It would effectively reduced the pulsation and solved the low metering accuracy of the pump, and the mixing time of the static mixer was too short and resulted in undermixing, and heat loss was too much and so on. From a longterm perspective, the design of desulfurization device provided a new way and making up for the deficiency of the existing desulfurization device.