Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 55, Issue 48, Pages 15086-15090Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201609442
Keywords
arenes; catalyst deactivation; catalyst regeneration; methane dehydroaromatization; Mo/HZSM-5
Categories
Funding
- SABIC-NWO CATC1CHEM/CHIPP project
Ask authors/readers for more resources
Non-oxidative methane dehydroaromatization is a promising reaction to directly convert natural gas into aromatic hydrocarbons and hydrogen. Commercialization of this technology is hampered by rapid catalyst deactivation because of coking. A novel approach is presented involving selective oxidation of coke during methane dehydroaromatization at 700 degrees C. Periodic pulsing of oxygen into the methane feed results in substantially higher cumulative product yield with synthesis gas; a H-2/CO ratio close to two is the main side-product of coke combustion. Using C-13 isotope labeling of methane it is demonstrated that oxygen predominantly reacts with molybdenum carbide species. The resulting molybdenum oxides catalyze coke oxidation. Less than one-fifth of the available oxygen reacts with gaseous methane. Combined with periodic regeneration at 550 degrees C, this strategy is a significant step forward, towards a process for converting methane into liquid hydrocarbons.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available