MoO3 Nanobelt-Modified HMCM-49 Zeolite with Enhanced Dispersion of Mo Species and Catalytic Performance for Methane Dehydro-Aromatization

Jing Hu; Yangyang Li; Shujie Wu; Xiaohui Wang; Cai Xia; Xinyu Zhao; Jinglin Liu

doi:10.3390/molecules27144404

MoO₃ Nanobelt-Modified HMCM-49 Zeolite with Enhanced Dispersion of Mo Species and Catalytic Performance for Methane Dehydro-Aromatization

Molecules. 2022 Jul 9;27(14):4404. doi: 10.3390/molecules27144404.

Authors

Jing Hu¹, Yangyang Li¹, Shujie Wu², Xiaohui Wang¹, Cai Xia¹, Xinyu Zhao¹, Jinglin Liu¹

Affiliations

¹ Inner Mongolia Key Laboratory of Carbon Nanomaterials, College of Chemistry and Materials Science, Inner Mongolia Minzu University, Tongliao 028000, China.
² Institute of Physical Chemistry, College of Chemistry, Jilin University, Changchun 130023, China.

Abstract

The methane dehydro-aromatization reaction (MDA) is a promising methane valorization process due to the conversion of methane to value-added aromatics (benzene, toluene and naphthalene). However, one of the major disadvantages of utilizing zeolite in MDA is that the catalyst is rapidly inactivated due to coke formation, which eventually causes the activity and aromatic selectivity to decrease. Consequently, the process is not conducive to large-scale industrial applications. The reasonable control of Mo site distribution on the zeolite surface is the key factor for partially inhibiting the coking of the catalyst and improving stability. Here, MoO₃ nanobelts can be used for alternative Mo precursors to prepare MDA catalysts. Catalysts modified with MoO₃ nanobelts present higher activity (13.4%) and benzene yield (9.2%) than those catalysts loaded with commercial MoO₃.

Keywords: MCM-49; MoO3 nanobelts; methane dehydro-aromatization.

Abstract

Grants and funding