King Fahd University of Petroleum and Minerals

Saudi Arabian Oil Company

Arudra Palani

Abdullah Mohammed Aitani

Sulaiman Saleh Al-Khattaf

Mohammad Naseem Akhtar

Mohammed A Al-Yami

Tazul Islam Bhuiyan

Sohel K Shaikh

Raed H Abudawoud

Embodiments of processes for producing propylene utilize a dual catalyst system comprising a mesoporous silica catalyst impregnated with metal oxide and a mordenite framework inverted (MFI) structured silica catalyst downstream of the mesoporous silica catalyst, where the mesoporous silica catalyst includes a pore size distribution of at least 2.5 nm to 40 nm and a total pore volume of at least 0.600 cm/g, and the MFI structured silica catalyst has a total acidity of 0.001 mmol/g to 0.1 mmol/g. The propylene is produced from the butene stream via metathesis by contacting the mesoporous silica catalyst and subsequent cracking by contacting the MFI structured silica catalyst.

Dual catalyst system for propylene production

Embodiments of a metathesis process for producing propylene comprise providing a metathesis catalyst comprising an amorphous mesoporous silica foam impregnated with metal oxides, where the metathesis catalyst has a pore size distribution of at least 3 nm to 40 nm and a total pore volume of at least 0.700 cm/g. The process further involves producing a product stream comprising propylene by contacting a feed stream comprising butene with the metathesis catalyst.

Propylene production using a mesoporous silica foam metathesis catalyst

A novel process and a novel catalyst for the production of light olefins. 1-butene is cracked in the presence of an acid- or base-modified silicalite-1 catalyst bed, wherein the modified silicalite-1 has a Si/Al ratio of greater than 1000. The modification procedures described herein increase the selectivity of the silicalite-1 catalyst toward light olefins such as ethylene and propylene. The catalytic cracking of 1-butene may be carried out in a fixed bed reactor or a fluidized bed reactor.

Catalytic hydrocracking of light olefins

Process for forming ethylene and propylene by hydrocracking

Processes and catalysts for production of light olefins

Growing community of inventors

Dhahran, Saudi Arabia

Arudra Palani