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Fushun, China

Meng X.-H.,Liaoning University | Meng X.-H.,China University of Petroleum - East China | Gao Y.,Liaoning University | Liu L.-L.,Liaoning University | And 4 more authors.
Shiyou Huagong Gaodeng Xuexiao Xuebao/Journal of Petrochemical Universities | Year: 2011

K 2Ti 2O 5, which have a high crystallinity, were well prepared by sol-gel method. K 2Ti 2O 5 were characterized by XRD, SEM, and BET surface area and found to have relatively high soot oxidation performance. Certain amount of NO x has positive influence on the performance of K 2Ti 2O 5, implying that K 2TiO 5 may be a kind catalyst for simultaneous removal of NO x and soot. K 2Ti 2O 5 may be an excellent candidate for soot oxidation due to its high oxidation activity, water-stability, and economical advantages. Source


Zhang S.,Liaoning University | Qin Y.,Liaoning University | Qin Y.,China University of Petroleum - East China | Shi L.,Liaoning University | And 4 more authors.
Shiyou Huagong Gaodeng Xuexiao Xuebao/Journal of Petrochemical Universities | Year: 2015

The physical and chemical properties of NaY zeolites and liquid phase cerium ion exchanged Y zeolites (L-CeY) were characterized by XRD, N2 adsorption, NH3-TPD, and in-situ Py-FTIR. The adsorption behavior of thiophene on NaY and L-CeY zeolites was studied by using frequency response (FR) technique and intelligent gravimetric analyzer (IGA), and the different adsorption models of thiophene on Y zeolites modified by rare earth metal were investigated simultaneously. The results indicate that different mass transfer processes in the micropores of these zeolites can be validly identified by FR technique. The adsorption behavior of thiophene on NaY zeolites is relatively simple. Two mass transfer processes can be measured, containing channel adsorption and π electron interaction. While, the adsorption behavior of thiophene on L-CeY zeolites is relatively complex. Except for two adsorption processes of adsorption in micropores and "S-M" adsorption, complex catalytic reaction processes is also detected in L-CeY zeolites under the condition of high temperature. ©, 2015, Fushun Petroleum Institute. All right reserved. Source


Lin S.-Y.,Liaoning University | Liu D.,Liaoning University | Wang H.,Fushun Normal College | Gui J.-Z.,Liaoning University | And 3 more authors.
Shiyou Huagong Gaodeng Xuexiao Xuebao/Journal of Petrochemical Universities | Year: 2012

The removal of basic nitrogen compounds from the coker diesel by extraction with acidic ionic liquid as main denitrogenation agent were investigated. The experimental results show that good denitrogenation efficiency (up to 92%) for coker diesel can be obtained under the following conditions: the mass ratio of oil to denitrogenation agent 25, temperature of 25°C, stirring for 20 min under reflux and settling time of 1.5 h. Denitrogenation agent can be reused and there is no obvious decrease in the nitrogen removal efficiency (90%) after recycling 5 times. Source


Zhang L.,Liaoning University | Jiang H.,Liaoning University | Wang H.,Fushun Normal College | Dong S.,Liaoning University | And 2 more authors.
Shiyou Huagong Gaodeng Xuexiao Xuebao/Journal of Petrochemical Universities | Year: 2013

Sn-Cu/C and Sn-Cu-M/C catalysts with different auxiliaries for hydrochlorination of acetylene-activated carbon as the carrier has been treated with the concentrated nitric acid and Sn, Cu and other metal chloride as active components-were prepared by the wet equivalent-volume impregnation and characterized by XRD and BET. The analytical results indicate that the active constituents are highly dispersed on the surface of carrier which having larger surface area and bigger bore diameter after acidic treatment. Then, optimized reaction conditions, reaction temperature 170°C, space velocity 30 h-1, feed volume ratio V(HCl)/V(C2H2) 1.05, were obtained in atmospheric fixed bed reactor. The catalytic performances of Sn-Cu/C and Sn-Cu-M/C catalysts with different auxiliaries was investigated under the optimized reaction conditions. The experimental results show that Sn-Cu/C catalyst has good initial activity, the acetylene conversion and the selectivity of chloroethylene is over 98.0%.The catalytic activity and stability are improved after adding to the different auxiliaries under the metion-aboved reaction conditions, the acetylene conversion and the selectivity of chloroethylene is over 98.0%. Source


Sun Q.,Liaoning University | Zhang S.,Liaoning University | Lai J.,Liaoning University | Zhang X.,Liaoning University | And 3 more authors.
Shiyou Huagong Gaodeng Xuexiao Xuebao/Journal of Petrochemical Universities | Year: 2014

Adsorption behavior of thiophene in NaY and CeY zeolites prepared by liquid phase ion exchange and solid state ion exchange methods by using the frequency response method, combined with the TG/DTG curves and Py-FTIR technique to analyze the the adsorption and diffusion mechanism of thiophene on these zeolites. The results indicate that L-CeY zeolites contain the strong B acid and weak L acid sites, while the S-CeY zeolites contain the weak L acid and a small amount of weak B acid sites. Only one weak adsorption process of thiophene can be observed for the S-CeY and NaY zeolites. Two different adsorption processes can be formed in L-CeY zeolites, and the different interactions can be attributed to the different acid sites. Source

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