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Table 1 Comparison of conversion, selectivity, and yields between microwave-assisted and thermal cracking processes

From: Microwave-assisted conversion of ethane to ethylene

  Microwave-assisted Thermal cracking Microwave/thermal × 100 (%)
Temperature (°C) 757.5 ± 5.0 800 ± 1  
Ethane flow rate (L/min) 0.5 0.5  
Bed packing material SiC particles Quartz particles  
Length of bed (cm) 5 15.2  
Test duration (min) 24 164  
Number of data point 3 16  
Conversion (wt%) 67.89 71.71 94.7
Ethylene selectivity (%) 81.18 81.59 99.5
Yields (wt%)
 Ethylene 55.10 58.51 94.2
 Ethane (unconverted) 32.11 28.29
 Methane 3.96 4.70 84.2
 Hydrogen 3.31 3.41 97.3
 Iso-pentane 1.71 2.44 70.2
 Propylene 1.19 1.75 68.1
 Iso-butane 0.17 0.21 80.6
 n-Butenes 0.13 0.33 39.6
 Coke 2.29 0.14
Mass balance (wt%) 99.92 99.61