A strategy combining the catalytic cracking of C6-C8 olefins and methanol to olefins (MTO) reaction through SAPO-34 pre-coking

The coupling conversion of C-6-C-8 olefins and methanol over SAPO-34 is proposed for enhancing carbon resource utilization and light olefins production. With the aid of thermogravimetric analysis (TGA), dissolution-extraction experiment and molecular dynamics simulations, the relationship between reactive coke and reaction pathway of methanol-to-olefin (MTO) are studied. Owing to its remarkable product shape selectivity, octene is explored to be an effective coking source for promoting ethene production.

Automated summary

This study proposes the coupling conversion of C-6-C-8 olefins and methanol over SAPO-34 to enhance carbon resource utilization and light olefins production. The relationship between reactive coke and reaction pathway of methanol-to-olefin (MTO) is investigated through thermogravimetric analysis, dissolution-extraction experiment, and molecular dynamics simulations. Octene is found to be an effective coking source for promoting ethene production due to its remarkable product shape selectivity.