Reformer

 

Details of three Reforming APC training sessions follow:

1. Reforming operation and economics (80 minutes):

• Reforming chemistry and equipment configuration, for semi regenerative and CCR units.
• Semi regen, CCR, mogas or aromatics, benzene removal options, gas plant.
• Consideration of feed boiling range and PNA
• Feed hydrotreating
• Regeneration
• Key handles: WAIT, H2/HC ratio
• Economics and operating requirements
  • Severity or throughput maximization versus run length.
  • Typical constraints

2. Inferential modeling (70 minutes):

Please note: If attendees have not taken the narrow cut training the session would take longer, about 100 minutes.

• Severity inference models for octane and aromatics.
• Identifying feed properties (PNA, distillation) on the fly.
• Benzene removal affects octane of what’s left.
• Catalyst coking and run length estimates.
• CCR coke burn calculation.
• Gas plant product quality inferences – see wide cut fractionation.
  • Product purities, RVP, loading of key trays.

3. Reformer APC issues (80 minutes):

• Hydrotreating unit severity and inventory contro
• Reformer APC structure: CV’s, DV’s and MV’s
• Hydrotreating, reactor, gas plant and regenerator sections.
• Throughput (or severity) maximization issues
  • Run length (semi regen only)
  • Regenerator constraints (CCR only); Several days dead time.
  • Unit limits: furnace, compressor.
  • Gas plant limits.

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