Optimization Study on Increasing Yield and Capacity of Fluid Catalytic Cracking (FCC) Units
Abstract
:1. Introduction
2. Materials and Methods
2.1. Case Study
2.1.1. Reaction Regeneration System
2.1.2. Fractionation System
2.1.3. Absorption Stabilization System
2.2. Simulation Methods
3. Results and Discussion
3.1. Yield Analysis on the Model
3.2. Comparative Analysis of the Main Operating Parameters of the Model
3.3. Comparative Analysis of the Distillation Curves of the Main Products of the Model
3.4. Optimization of Improving Gasoline Yield
3.5. Optimization of Increasing the Capacity of the Unit
4. Conclusions
Author Contributions
Funding
Institutional Review Board Statement
Informed Consent Statement
Data Availability Statement
Conflicts of Interest
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Product Name | Calibration Yield (%) | Simulation Yield (%) | Deviance |
---|---|---|---|
LPG | 22.3 | 18 | 0.19 |
gasoline | 37.4 | 40.6 | 0.09 |
light diesel oil | 21.3 | 23 | 0.08 |
dry gas | 3.5 | 5.5 | 0.57 |
slurry | 8.5 | 4.6 | 0.46 |
Project | Unit | Design Control Scope | Simulation Value |
---|---|---|---|
Settler pressure | Mpa | 0.218~0.318 | 0.300 |
Riser outlet temperature | °C | 475~535 | 518 |
Preheating temperature of feed oil | °C | 170~240 | 175 |
Regenerator top pressure | Mpa | 0.248~0.348 | 0.348 |
Regeneration dense phase temperature | °C | 660~720 | 680 |
Regenerator dense reservoir | t | 45~150 | 80 |
Fractionator bottom temperature | °C | 320~350 | 349.8 |
Fractionator top temperature | °C | 105~130 | 119.7 |
Top pressure of stabilizer | Mpa | ≯1.05 | 1.17 |
Analysis of tower top pressure | Mpa | 1.2~1.5 | 1.266 |
Reabsorber top pressure | Mpa | 1.1~1.4 | 1.200 |
Stabilizer bottom temperature | °C | 150~190 | 157.5 |
Bottom temperature of analytical tower | °C | 95~135 | 115 |
Absorber top pressure | Mpa | 1.1~1.4 | 1.3 |
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Zhang, Y.; Li, Z.; Wang, Z.; Jin, Q. Optimization Study on Increasing Yield and Capacity of Fluid Catalytic Cracking (FCC) Units. Processes 2021, 9, 1497. https://doi.org/10.3390/pr9091497
Zhang Y, Li Z, Wang Z, Jin Q. Optimization Study on Increasing Yield and Capacity of Fluid Catalytic Cracking (FCC) Units. Processes. 2021; 9(9):1497. https://doi.org/10.3390/pr9091497
Chicago/Turabian StyleZhang, Yuming, Ziming Li, Zeyu Wang, and Qibing Jin. 2021. "Optimization Study on Increasing Yield and Capacity of Fluid Catalytic Cracking (FCC) Units" Processes 9, no. 9: 1497. https://doi.org/10.3390/pr9091497
APA StyleZhang, Y., Li, Z., Wang, Z., & Jin, Q. (2021). Optimization Study on Increasing Yield and Capacity of Fluid Catalytic Cracking (FCC) Units. Processes, 9(9), 1497. https://doi.org/10.3390/pr9091497