Process optimization of vapor phase pyridine synthesis using response surface methodology |
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Authors: | K Suresh Kumar Reddy C Srinivasakannan K V Raghavan |
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Institution: | 1.Chemical Engineering Department,the Petroleum Institute,Abu Dhabi,U.A.E.;2.Chemical Engineering Division,Indian Institute of Chemical Technology,Hyderabad,India |
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Abstract: | The vapor phase pyridine synthesis from acetaldehyde, formaldehyde and ammonia over HZSM-5 catalyst was studied. The process
parameters like temperature, aldehyde ratio, and Si/Al ratio in HZSM-5 was investigated and the process conditions were optimized
using surface response methodology (RSM) based on Box-Behnken design. The influence of process parameters investigated using analysis of variance (ANOVA), to identify
the significant parameters. The optimum conditions for high yield of pyridine were identified to be a reaction temperature
400°C, aldehyde ratio 1: 1 and Si/Al ratio 106.7. A maximum of 55% yield of pyridine formed under the optimum experimental
conditions. The proposed model equation using RSM has shown good agreement with the experimental data, with a correlation
coefficient R
2 = 0.99. |
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Keywords: | |
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