Process and catalyst for converting natural gasoline to light olefins

A method of converting natural gasoline liquid (NGL) feed to light olefins comprising:

• contacting the NGL feed comprising alkanes with a catalyst system at a temperature range of from 400° C. to 650° C., and under a pressure range of from 0.1 bar to 2.5 bar, in a fluidized bed reactor, wherein:
• the catalyst system comprises a vanadium-substituted zeolite comprising a MFI-type framework, a cerium-substituted zeolite comprising a BEA-type framework, or both,
• the MFI-type framework comprises vanadium and at least one additional metal oxide,
• the BEA-type framework comprises cerium and the at least one additional metal oxide,
• the at least one additional metal oxide is selected from the group consisting of calcium oxide, strontium oxide, magnesium oxide, molybdenum oxide, and combinations thereof,
• the MFI-type framework comprises from 0.5 wt. % to 30 wt. % vanadium atoms based on a total weight of the vanadium-substituted zeolite, as calculated on a vanadium oxide basis, and
• the BEA-type framework comprises from 0.5 wt. % to 30 wt. % cerium atoms based on a total weight of the cerium-substituted zeolite, as calculated on a cerium oxide basis, and
• the MFI-type framework and the BEA-type framework also comprise from 0.5 wt. % to 10 wt. % of the at least one additional metal oxide based on a total weight of the zeolite;
• catalyzing catalytic cracking and dehydrogenation of the NGL feed via the catalyst system, thereby converting a portion of the NGL feed to the light olefins and yielding a product stream comprising the light olefins.