초록 |
C2 to C4 olefins are selectively produced from mixture gas in a two-step catalytic cracking system. The mixture (CO and H2) gas is reacted in a first step reactor to produce olefins and then the reaction products are introduced into a second reactor. The products are cracked in a second step comprised of a catalytic cracking unit wherein it is converted in ZSM-5 to light olefins (C2 to C4). It enables to increase product of light olefin such as ethylene, propylene, and so on with high yield and selectivity, by two-step catalytic cracking system. |