Catalyst for producing olefins from dehydrogenation of alkane and a method for producing olefins using said catalyst
AssigneePTT Global Chemical Public Company Limited
InventorsChularat Wattanakit, Thittaya Yutthalekha, Anawat Thivasasith, Wannaruedee Wannapakdee, Pannida Dugkhuntod, Duangkamon Suttipat
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Abstract
The present invention relates to a catalyst for producing olefins from dehydrogenation of alkane having 2 to 5 carbon atoms and a method for producing olefins using said catalyst, wherein said catalyst comprises a hierarchical zeolite nanosheet having a silica to alumina (SiO2/AI2O3) ratio more than 120 and group X metal(s) in a range of 0.3 to 5% by weight. The catalyst according to the conversion of precursor to yields and high olefins selectivity.
Claims19
A catalyst for producing olefins from dehydrogenation of an alkane having 2 to 5 carbon atoms, the catalyst comprising:
- a hierarchical zeolite nanosheet having a silica to alumina (SiO2/Al2O3) molar ratio of 120 or greater,
- wherein the hierarchical zeolite nanosheet comprises one or more metals of group X of the periodic table in a range of 0.3 to 5 wt % relative to a total weight of hierarchical zeolite nanosheet, and
- wherein the hierarchical zeolite nanosheet has
- micropores having a pore diameter in a range of 0.4 to 0.6 nm,
- mesopores having a pore diameter in a range of 2 to 50 nm, and
- macropores having a pore diameter greater than 50 nm, and
- wherein the mesopores and macropores contribute to 60% or more of the total pore volume as measured by N2 adsorption/desorption using BJH (Barrett, Joyner, and Halenda) model.
Dependencies are inferred from the claim text.