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Read MoreCatalysts for Fixed-Bed and Molecular Sieve Hydrocracking in Single-Stage Hydrocracking Process
The single-stage hydrocracking process is simple, with low investment, easy operation, and robust product performance. The hydrocracking technology has its own advantages, which allows the existing hydrogenation equipment to process light gas oil and distillates without additional hydrogenation equipment or specialized hydrogenation processes. In intermediate distillates, these catalysts exhibit high activity and excellent selectivity. FRIPP has expanded its applications in industrial processes by developing the ZHC-01, ZHC-02, 3973, FC-14, FC-28, FC-30 catalysts. The FC-14, FC-28, and FC-30 catalysts are molecular sieve and fixed-bed hydrocracking catalysts with high activity. Among them, FC-30 is a high-performance catalyst for heavy oil processing, with superior activity in intermediate oil hydrogenation and low-cost, long-cycle operation.
Catalyst Features:
The catalyst in the single-stage hydrocracking process uses modified Y-type molecular sieves (Y5 and Y6) as supports, with active metals being nickel and non-nickel active metals. These catalysts show higher activity and selectivity for intermediate oil. The table below shows the main characteristics of typical catalysts:
| Catalyst Type | FC-14 | FC-28 | FC-30 |
| Active Metal | W+Ni | W+Ni | W+Ni |
| Form | Solid | Solid | Solid |
| Pore Volume (ml/g) | 0.34 | 0.28 | 0.36 |
| Relative Surface Area (m²/g) | ≥175 | ≥170 | ≥180 |
| Mechanical Strength (N/mm²) | ≥18.5 | ≥18.5 | ≥13 |
| Loading Density (g/cm³) | 0.87-0.93 | 0.90-1.00 | 0.90-1.00 |
| Average Length (mm) | 3-8 | 3-8 | 3-8 |
Application:
This catalyst is suitable for processing feedstocks such as VGO or VGOs, CGOs, and mixed oils of light and heavy distillates. The operating temperature is up to 550°C, with a hydrogen content of more than 2000 μg/g, and the middle fraction distillation range above 75%. The catalyst density is 30 kg/g, and the BMCI value is >20.
Suitable Process Conditions:
| Item | Range |
| Operating Mode | Single-pass or Circulating |
| Reaction Pressure (MPa) | 10.0-18.0 |
| Hourly Space Velocity (h⁻¹) | 0.5-1.5 |
| Reaction Temperature (°C) | 340-440 |
Typical Industrial Application Results
| Item | Range |
| Process Flow | Single-pass |
| Pressure (MPa) | 14.7 |
| LHSV (h⁻¹) | 0.78 |
| Hydrogen Partial Pressure Ratio | 800:1 |
| Reaction Temperature (°C) | 406 |
Application Results:
| Application | Feedstock | Light Oil | Heavy Oil | Jet Fuel | Diesel | Unconverted Oil |
| Conversion, % | 100 | 2.70 | 24.34 | 17.44 | 40.83 | 19.76 |
| Density (g/cm³) | 0.8854 | 0.6357 | 0.7979 | 0.8140 | 0.8494 | – |
| Smoke Point (mm) | – | <2.5 | – | – | – | – |
Application and Promotion Status:
These catalysts have been applied in industrial processes at various sites, including Sinopec Jinling Petrochemical, Hainan Refining & Chemical, Liaoyang Petrochemical, Chonqing Petrochemical, and other refineries in Shandong and Shaanxi provinces.
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