5 days RAF/FCCSS-E
- Engineers and technical staff interested or involved in designing or operating an FCC unit.
- To provide a comprehensive understanding of operating, monitoring and optimizing the catalytic section of the FCC process.
- To understand the exact role and process of an FCC unit.
- To analyze the importance and impact of operating parameters on product quality.
- To learn about main potential incidents, their origin, consequences on safety, health and the environment, and the most common preventive measures.
Ways and means
- Applications, case studies based on typical industrial situations.
Der Vortrag über dieses Thema kann auch auf Deutsch gehalten werden.
Overview of the FCC process 0.25 day
- Aim of the fluid catalytic cracking unit and its place in the refining scheme.
- Characteristics of the feeds, impact on the process; incentive for conversion of heavy cuts.
- Mass balance, characteristics of the products and related treatments.
Plant typical balances 0.75 day
- Interpretation of the operating parameters:
- Heat balance and catalyst flow rate
- Cracking conditions: thermal and catalytic severity, impact on operation and products
- Pressure balance, fluidization and catalyst circulation; ∆P of slide valve and safety
- Energy balance: heat recovery in the flue gas line and in the bottom pump-around.
FCC operating parameters in reaction section 2 days
- The following parameters:
- different modes of changing the catalyst circulation
- control of the cracking temperature
- effect of the feed temperature, flowrate and chemical composition
- impact of acceleration or stripping steam
- pressure monitoring
- are investigated, as well as their effect on balances, Δcoke, regenerator temperature and yields.
Catalyst monitoring 0.5 day
- Catalytic cracking reactions and resulting products.
- Catalyst structure and catalyst mode of action.
- Catalyst additives: ZSM5, CO promoter, metals scavengers, sulfur trap.
Operation and optimization 0.5 day
- Different operating situations are analyzed to illustrate: optimization of LCO production; maximization of heavy feed processing under constraint of air flow rate limitation. Modification of the process for maximization of light cuts C3 & C4 production.
Incidents and troubleshooting 1 day
- Incidents of heat balance: coke build up, afterburning, lack of coke, etc.
- Incidents of pressure balance: low pressure drop, reverse flow, failure of the wet gas compressor.
- Incidents on the energy recovery circuits: loss of boiler level, loss of circulation in the bottom pumparound, etc.
- Main interlock configurations.