Abstract
The oxidative dehydrogenation of propane to propylene can be enhanced
through the addition of a halogen to a feed of oxygen and propane. In
this paper, we examine halogen-assisted oxidative dehydrogenation by a
mixture of I2 and Br2. We find that adding a small amount of Br2 to a feed of I2, C3H8, and O2
produces propylene with 71% propane conversion and 83% propylene
selectivity. Good performance is also obtained if a small amount of I2 is added to a feed of Br2, C3H8, and O2.
In both cases, the propylene yield is greater than the sum of the
yields obtained with iodine and bromine separately. A variety of studies
were performed to help understand the reaction mechanism. Methane
halogenation was also investigated by using combinations of iodine and
bromine to produce methyl iodide, and a microkinetic model was also
constructed for methane halogenation in the gas-phase to help understand
the mechanism.
Original language | English |
---|---|
Journal | Applied Catalysis A: General |
Volume | 580 |
Pages (from-to) | 102-110 |
ISSN | 0926-860X |
DOIs | |
Publication status | Published - 2019 |
Keywords
- Dehydrogenation
- Halogens
- Propylene
- Methyl iodide