Successful application of ethylene cracking carbon three fraction hydrogenation catalyst

Sinochem News Network News Recently, the ethylene cracking carbon three fraction hydrogenation catalyst independently developed by PetroChina has been used for the first time in Lanzhou Petrochemical's 240,000-ton/year ethylene plant, realizing the import substitution of this type of catalyst

Lanzhou Petrochemical's 240,000-ton/year ethylene plant was designed by the former Sinopec Lanzhou Design Institute, with an original design processing capacity of 160,000 tons/year

Since October 2021, the operating space velocity of the C3 hydrogenation unit of the device has been increased from the original 20~25h ⁻ ¹ to 45~50h⁻¹, and the annual production capacity of propylene will reach 140,000 tons.

Lanzhou Chemical Research Center has developed a carbon three fraction hydrogenation catalyst PEC-31 based on the special working conditions of high space velocity and high inlet acetylene of the device, using the in-situ reduction technology of active components, which meets the requirements of the device for high activity and high selectivity.

Subsequently, Lanzhou Chemical Research Center and the olefin workshop jointly conducted performance calibration of the new catalyst

The successful application of C3 hydrogenation catalyst PEC-31 fills the technical gap of CNPC in the field of C3 hydrogenation, marking that the Petrochemical Research Institute has a full range of hydrogenation technologies for ethylene fractions, and promoting the full domestic production of chemical hydrogenation catalysts process