Catalyst Auxiliary for Improving the Propylene

It is adopted ZSM-5 shape-selective molecular sieve with high activity and high stability, using unique shape-selective molecular sieve modification technology and special preparation process.It can not only avoid the dilution effect on the main catalyst due to the addition of excessive shape-selective molecular sieves or propylene agent, but also can significantly improve the yield of light olefins, especially propylene. When the added amount reaches about 5% of the system storage capacity, the liquefied gas yield increases by more than 4%, the propylene concentration in the liquefied gas increases by more than 3%.The gasone increases to a certain extent,but it does not affect the product distribution of the catalytic device and the gasoel product quality.