The Keggintype phosphotungstovanadic heteropolyacid catalyst was synthesis by N a 2HP O4、 N a VO3  and N a 2WO4·2H2O. Then,H4PW1 1VO4 0 heteropolyacid hybrid materials was prepared by reacting H3PMo12O40 with 1butyl3methylimidazolium bromide ionic liquid. The prepared catalyst was characterized by XRD and IR, and the results showed a characteristic Keggintype structure of 4PW1 1VO4 0/ S i O2,以 H2O2  catalyst was prepared using SiO2 as the support. The suppoted catalyst was then applied as catalyst for the degradation of Rhodamine B using the H2O2 as the oxidant. The obtained optimal reaction conditions was 3 mL of H2O2, the weight of 4PW11VO40 20% loading, 0.35 g of catalyst at 40 ℃ for 1.5 h. Under the optimal condition, the degradation rate of Rhodamine B was up to 98.4%. The catalyst shoed good reusability and can be reused for many times without the decrease of degradation activity of Rhodamine B .

The  H5PMo 1 0V2O4 0 with Keggin structure was prepared by mixing Na2HPO4, NaVO3, and Na2MoO4•2H2O in stoichiometric amount. Then the \[ Bm i m] 5PMo 1 0V2O4 0 hybrid materials was prepared by reacting H5PMo 1 0V2O4 0 with the 1butyl3methyl imidazolium bromide ionic liquid. The IR spectra and XRD data showed that the synthetic \[Bmim\]H5PMo 1 0V2O4 0 hybrid materials display Keggin structure. The SiO2supported \[Bmim\] 5PMo 1 0V2O4 0 hybrid materials were obtained, and the prepared samples were applied to the catalytic degradation of organic dyeRhodamine B. The optimal reaction condition was 30% of \[Bmim\] 5PMo 1 0V2O4 0/SiO2 loading, 1.5 mL of hydrogen peroxide, 0.2 g of the catalyst at 40 ℃. Under the optimal conditions, the highest degradation rate of organic dye Rhodamine B reached up to 97.58%. The catalyst show good regeneration performance, which can be reused at least four times and the degradation rate of Rhodamine B was no significant declined. 

According to the prehydrogenation and predistillation of catalytic reforming unit, this article utilize the pinch technology to analyze, find the energy bottleneck, simulate and optimize the whole heat exchange network by Aspen energy analyzer, compared with original heat exchange network , energy saving 3 735 kW (23.5%). Aiming at reduce the amount of utility and raising the profit for the enterprise.