The alkylation reaction of benzene with methanol to produce toluene: Y-C and Y-CCs catalyst |
| |
| Authors: | Peng Dong Zeyu Li Xiaorui Wang Hongfei Yun |
| |
| Institution: | 1. College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou, People’s Republic of China;2. Lanzhou Petrochemical College of Vocational Technology, Lanzhou, People’s Republic of China;3. College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou, People’s Republic of China;4. Lanzhou Petrochemical College of Vocational Technology, Lanzhou, People’s Republic of China |
| |
| Abstract: | The secondary reaction of toluene is difficult to be suppressed in benzene alkylation with methanol over conventional acidic zeolite catalysts. Moreover, the formation of coke yet remains a challenging problem. In this study, Na-Y zeolites were modified with ammonium carbonate (AC), citric acid (CA) and caesium nitrate(CN) to evaluate the alkylation of benzene with methanol, which was also characterized by XRD, SEM, FT-IR, N2 adsorption and Py-IR. For the Na-Y treated with AC-CA-CN, not only the catalytic selectivity for the alkylation of benzene with methanol was improved (the total selectivity of toluene and xylene was 97.9% and toluene selectivity was 86.4%), but also the quantity of coke was greatly decreased. |
| |
| Keywords: | Benzene/methanol alkylation toluene Lewis/Brönsted acid coke |
|
|
