Industrial application of DM-5005 metal passivator in heavy oil catalytic cracking unit
The industrial application of metal passivator in 1.5 Mt/a heavy oil FCC unit is conducted.The results show that with the same raw material and operation condition,the adding of metal passivator has no harmful effects on product quality,the yields of gas,petroleum coke and diesel oil are reduced 0.57,0.63 and 0.69 percent point.The yields of LPG,gasoline and liquid are increased 0.96,1.75 and 1.2 percent point,and the economy benefit of RFCC unit is increased by 119.85 million yuan/a.All that confirms the DM-5005 metal passivator can make the catalyst have good selectivity and improved products distribution.