| 초록 |
As an alternative way to replace the usage of limited oil resources, methanol to olefin (MTO) conversion has been investigated for producing light olefins from abundant natural gas, coal, and biomass. Silicoaluminophosphate (SAPO)-34 is a representative catalytic material in the MTO conversion with highly selectivity for light olefins, due to cylinder-like cages with small 8-ring pore openings restricting the release of large hydrocarbons. However, the SAPO-34 cages result in the diffusion limitation causing a fast coke deposition and thus catalytic deactivation. Here, we suggested the synthetic strategy for submicro-sized cobalt (Co)- substituted SAPO-34 with controlled Co content through milling and Co-incorporated recrystallization. Ultimately, the effect of milling and Co-substitution on the catalytic lifetime was investigated with the understanding the modified particle size, ore structure and acidity. |
