FCC catalyst for high-yield production of iso-olefins
fcc@fcccatalyst.net
The performance of the catalyst is to maximize the conversion of heavy distillate oils into iso-olefins and high-octane gasoline. Its characteristics are: highly selective isomerized olefins, high activity, resistance to metal pollution and hydrothermal stability, and good fluidization properties.
• Compared with traditional FCC catalysts, it has good selectivity for isomeric olefins. When the VGO is mixed with 30% (m) vacuum oil and the heavy metal content of the feed is 10-20 ppm, the yield of īC4 = + īC5 = and īC3 = + īC4 = + īC5 = reach 11% respectively (M) and 21% (m).
• Good activity, selectivity and hydrothermal stability, as well as good fluidization performance.
• Excellent resistance to metal pollution, especially resistance to V pollution. When the Ni and V metal contamination on the equilibrium catalyst reaches 6000 ppm, the equilibrium activity can still be maintained above 65.
• Good gasoline selectivity.
| Item | Result |
| Re2O3 %(m/m) | 1~2 |
| Al2O3 %(m/m) | ≥48 |
| Fe2O3 %(m/m) | ≤0.25 |
| Na2O %(m/m) | ≤0.25 |
| LOI %(m/m) | ≤13 |
| Pore Volume PV ml/g | ≥0.4 |
| Surface area m2/g | ≥290 |
| Apparent bulk density g/ml | 0.65~0.75 |
| Microreaction active (800℃/4h) %(m/m) | ≥80 |
| Microreaction active (800℃/17h) %(m/m) | ≥60 |
| Abrasion index %(m/m) | ≤2.8 |
| Particle size distribution | |
| 0~20um %(v/v) | ≤3 |
| 0~40um %(v/v) | ≤15 |
| 0~149um %(v/v) | ≥90 |
| APS, um | 65~80 |