Dissertation > Excellent graduate degree dissertation topics show
Study on the Properties of ZSM-5 Catalysts in Benzene Alkylation with Methanol
Author: LuZuo
Tutor: ZhuXueDong；XuYaRong
School: East China University of Science and Technology
Course: Chemical Engineering
Keywords: ZSM-5 Benzene Methanol Alkylation Hierarchical
CLC: O643.32
Type: Master's thesis
Year: 2012
Downloads: 192
Quote: 1
Read: Download Dissertation
Abstract
|
The properties of conventional ZSM-5 catalysts, hierarchical ZSM-5 catalysts and their modified catalysts in benzene alkylation with methanol were studied in this paper. The reactions were carried out on fixed-bed micro-reaction system. The surface structures and acid strength of ZSM-5 catalysts were characterized by means of XRD, BET, NH3-TPD. The results showed that the factors discussed above have certain effects on the catalytic performances of ZSM-5 catalysts.The results showed the properties of MgO and NiO composite modified ZSM-5.The addition of NiO increased the selectivity of xylene, but greatly reduced the conversion of benzene. It also studied P2O5 and MoO3 composite modification ZSM-5, the addition of P2O5 decreased the conversion of benzene.Compared to the conventional ZSM-5, the hierarchical ZSM-5 catalysts displayed high benzene conversion, selectivity of the toluene and xylene and good stability by introducing a lot of mesoporous. The appropriate WHSV was high for the hierarchical ZSM-5 catalysts.The addition of MgO and H3PMo12O40 on the hierarchical ZSM-5 increased the benzene conversion and the selectivity of toluene and xylene. The catalysts containing 9% of MgO and 6% of Mo03(H3PMo12040) showed the best catalytic activities, the benzene conversion were 50.17% and 47.82% respectively.
|
Related Dissertations
- Multi-walled Carbon Nanotubes Au _AT_ of Pt, Au _AT_ of Pd core-shell structure of the catalyst preparation and electrochemical properties of,O643.36
- Pt -based catalysts of direct methanol fuel cells,TM911.4
- Nano Pt / SiC Preparation, Characterization and Electrochemical Catalytic Performance,TM911.4
- Study on Influential Factor to Methane Metabolic of Methane-utilizing Bacteria and Methoanol Detection Method,Q93
- Sports School Students Hierarchical Chinese Language Teaching and Research,G633.3
- Zeolite -based bifunctional catalysts and their catalytic isomerization Performance,O643.36
- Synthesis of Hierarchical ZSM-5 and Its Application in Benzene Alkylation with Methanol,O621.25
- The Study of Synthesis and Properties of ZSM-5 Zeolite Membrane on Stainless Steel Wire Mesh Substrate,TQ424.25
- Design and Synthesis of Novel Planar Chiral N-Containing Nucleophilic Catalysts and Their Applciations in Asymmertric Reaction,O643.36
- A Hierarchical Symbolic Simulator for Analog Circuit Design,TN710
- Study on the Preparation of Zeolite with Core-Shell Structure and Indirect Synthesis of Cyclohexanol from Cyclohexene,TQ233.1
- The Research on Degradation of Cellulose with Catalytic Method,TQ352.1
- Synthesis of Dimethyl Carbonate from Urea and Methanol over Fe2O3/HMCM-49 or Complexes with Iron,TQ225.52
- The Direct Synthesis of Nitrobenzene and Phenol Via Nitration and Hydroxylation of Benzene,TQ243.1
- Ultra-high definition video coding based on synchronous hierarchical motion estimation architecture design,TN919.81
- Urban rail transit passenger transfer station early warning and response method,U239.5
- Mixing two shape-selective cracking of cumene,TQ244.2
- Practical supermarket multitasking robot path planning method,TP242
- Multi-threaded fusion soccer video semantic analysis and event detection,TP391.41
- Histogram based on improved gradient space object detection method,TP391.41
- Based on the principle of suction air -breathing direct methanol fuel cell three-dimensional numerical simulation,TM911.4
CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Chemical kinetics,catalysis > Catalytic > Catalytic reaction
© 2012 www.DissertationTopic.Net Mobile
|