Sulfur compound

1st order rate constant (min−1)

Ea (kJ/mol)

25˚C

40˚C

60˚C

Thiophene

0.012

0.021

0.044

30.67

DBT

0.013

0.023

0.047

29.79

4,6-DMDBT

0.15

0.027

0.05

28.32