Publications (Cited by EI)

EI论文10-14


2008-06-23
14. Accession number: 03127408365

Title: Fractal features and catalytic performance of CeO2/ZnO catalyst

Authors: He, Yong-Jun; Yang, Bo-Lun; Pan, Hai-Min; Zhang, Chang-Lei; Chen, Xuan-Bing 

Serial title: Shiyou Huagong/Petrochemical Technology

 

13. Accession number: 03527799713

Title: Analysis for fields synergy in the reactive distillation process

Authors: Tao, Xian-Hu; Yang, Bo-Lun; Hua, Ben 

First author affiliation: Dept. of Chem. Eng., Xi’an Jiaotong Univ., Xi’an 710049, China

Serial title: Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities

Abstract: A new method to analysis the reactive distillation process was proposed. The phenomenological theory was used; both of the Soret effect and Dufour effect were considered. The synergy of fields, such as the temperature, concentration and chemical potential in the reactive distillation process was discussed and the relationship of each factor within one field was also investigated. The equations of mass and heat fluxes were suggested and the coefficients for both of them were obtained under many condition of the synergy in multi-fields. It can be known from the research results that the transfer rate of mass and heat can be increased or decreased resting with the consequence of synergy in multi-fields, the direction of transfer also can be changed by the affection of synergy of multi-fields. From the viewpoint of field synergy, these models of equilibrium stage and non-equilibrium stage for the reactive distillation process are the two kinds of typical results of the synergy within one field and inter-fields.

Number of references: 8

 

12. Accession number: 03387642698

Title: Kinetics research in synthesis of methyl tert-amyl ether using hybrid evolutionary algorithms

Authors: Meng, Fanxu; Yang, Bolun; Yao, Ruiqing; Tao, Xianhu 

First author affiliation: Dept. of Chem. Eng., Xi’an Jiaotong Univ., Xi’an 710049, China

Serial title: Huagong Xuebao/Journal of Chemical Industry and Engineering (China)

Abstract: Hybrid evolutionary algorithms were developed. In this new method, the traditional genetic algorithm was modified by using adaptive multi-annealing crossover and mutation strategies instead of simple strategy. The multi-evolutionary mode was also adapted to improve search efficiency. The modified genetic algorithm avoided the problem of local optimum and showed the higher estimating precision and better convergence than the traditional genetic algorithm and Runge-Kutta method. This new hybrid evolutionary algorithm was successfully used to estimate the kinetics parameters for the synthesis of methyl tert-amyl ether from methanol and tert-amyl alcohol on strong acid cation exchange resin A-15. The calculated results using these parameters from the modified genetic algorithm agreed well with experimental data.

 

11.Accession number: 02487244409

Title: Synthesis of tert-amyl ethyl ether and kinetics research

Authors: Yao, Rui-Qing; Yang, Bo-Lun; Tao, Xian-Hu 

Serial title: Gao Xiao Hua Xue Gong Cheng Xue Bao/Journal of Chemical Engineering of Chinese Universities

Abstract: Ethanol and tert-amyl alcohol were employed to synthesize tert-amyl ethyl ether in the liquid phase at atmospheric pressure. The strong acid cation exchange resin, NKC-29, was used as catalyst. The reaction mechanism was investigated. The effects of temperature, catalyst concentration and the initial molar ratio of ethanol to tert-amyl alcohol on the reaction rate and selectivity were discussed. Experimental results show that the conversion of tert-amyl alcohol increases with temperature increasing. However, the selectivity of tert-amyl ethyl ether decreases when temperature increases. The initial reaction rate is proportional to the catalyst amount and the side reaction rate of tert-amyl alcohol dehydration will become slow when the molar ratio of ethanol to tert-amyl alcohol is increased. The performance of NKC-29 was compared with another cation exchange resin S-54. It shows that both of the reaction activity and selectivity for the NKC-29 are better than for the S-54. Based on these experiment results, a kinetic model which considers the six reversible reactions and the inhibition of water was obtained. The relationships of the rate constant ki and the inhibition coefficient kw with the temperature were given, and the activation energies were calculated. The model agrees well with the experimental results.

 

10.Accession number: 02427145399

Title: Research progress of aromatization of methane

Authors: Qi, Sui-Tao; Yang, Bo-Lun 

Serial title: Huagong Xiandai/Modern Chemical Industry

Abstract: Reaction mechanisms of oxidative and non-oxidative aromatization of methane to produce benzene are discussed. New progress of aromatization over various metal and metal oxide catalysts at home and abroad is reviewed. The promotion effects of the addition of the second metal (transition metal, rare earth metal, and noble metal) to Mo/ZSM-5 catalysts and different supports (SiO2, Al2O3, ZSM-5, MCM-22, MCM-49) and the presence of small amounts of other gases (H2, O2, CO, inert gas, low-hydrocarbon, and water vapor) in the methane on non-oxidation aromatization are discussed. Some new routes such as the introduction of the second metal, other gases and out fields should be considered to achieve non-oxidative aromatization of methane at lower temperature.