Journal
SCIENTIFIC REPORTS
Volume 12, Issue 1, Pages -Publisher
NATURE PORTFOLIO
DOI: 10.1038/s41598-022-06598-6
Keywords
-
Categories
Funding
- Office of the Ministry of Higher Education, Science, Research and Innovation, Thailand
- Thailand Science Research and Innovation through the Kasetsart University Reinventing University Program 2021
- National Research Council of Thailand [NRCT5-RSA63002-11]
- Kasetsart University Research and Development Institute (KURDI), Thailand
- Austrian Science Fund (FWF) via grant SFB TACO [F81-P08]
Ask authors/readers for more resources
The effects of loading MnTiO3 or MnOx-TiO2 on different supports on the oxidative coupling of methane were investigated. MnTiO3-NW/SG catalyst showed the highest C2+ yield and selectivity, as well as good stability.
The oxidative coupling of methane (OCM) converts CH4 to value-added chemicals (C2+), such as olefins and paraffin. For a series of MnTiO3-Na2WO4 (MnTiO3-NW) and MnOx-TiO2-Na2WO4 (Mn-Ti-NW), the effect of loading of MnTiO3 or MnOx-TiO2, respectively, on two different supports (sol-gel SiO2 (SG) and commercial fumed SiO2 (CS)) was examined. The catalyst with the highest C2+ yield (21.6% with 60.8% C2+ selectivity and 35.6% CH4 conversion) was 10 wt% MnTiO3-NW/SG with an olefins/paraffin ratio of 2.2. The catalyst surfaces with low oxygen-binding energies were associated with high CH4 conversion. Stability tests conducted for over 24 h revealed that SG-supported catalysts were more durable than those on CS because the active phase (especially Na2WO4) was more stable in SG than in CS. With the use of SG, the activity of MnTiO3-NW was not substantially different from that of Mn-Ti-NW, especially at high metal loading.
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