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ECCJ / TextReport India

EE&C Measures
1. Distillation, Extraction and Absorption
    (No cost)
      - Reduce reflux ratio
      - Lower column pressure
      - Reduce injection steam (Distillation column, stripper or amine regenerator)
      - Optimize overflash rate
      - Reduce solvent ratio
      - Select energy-efficient solvent/absorbent
    (Low cost)
      - Install overflash meter
      - Install on-stream analyzer
    (Low cost - continued)
      - Remodel to lower column pressure (incld. High vacuum)
      - Replace by high performance tray
      - Change positions of feed tray or draw-off tray
      - Install intermediate cooler or reboiler
      - Change internals from tray to packing
      - Replace ejector by vacuum pump
      - Install chiller or heat pump system on O/H condenser
      - O/H vapor recompression (mentioned by CHT)
      - Split tower arrangement (do.)
      - Two-stage condensation of O/H vapor (do.)
EE&C Measures
2. Fired heaters
    (No cost)
      - Reduce Air Ratio
      - Repair damper/register
    (Low cost)
      - Install O2 meter
      - Change or remodel damper
      - Change draft meter
      - Control damper remotely
      - Change or remodel burner
      - Change heat insulation or refractory
    (Low cost - continued)
      - Add convection tubes
      - Improve velocity profile in convection
      - Install Waste Heat Boiler
      - Install Air preheater
      - Introduce combustion control and pass balancing system (mentioned by CHT)
      - Select or change to right auxiliaries (burners, FDF/IDF, etc. also mentioned by CHT)
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