Gas RefiningTechnologies & Measures
|Technology or Measure||Energy Savings Potential||CO2 Emission Reduction Potential Based on Literature||Costs||Development Status|
|High Pressure Water Power Recovery Turbine|
Investment costs are reported to be 150 million Yen for a 330,000 t ammonia/year plant, providing annual revenues of 36 million Yen and resulting in a payback time of 4.1 years (199 values) (ECCJ, 1999. p.155).
|Use of Enhanced CO2 Removal Solvents|
Investment costs of improved solvents are estimated at €15 per GJ saved annually (de Beer et al., 2001., p.22).
The investment for the use of improved solvents for CO2 recovery are estimated to be around €3/GJ (Nieuwlaar, 2001. p.22).
For a 300 000 tonne/y plant, the investment costs for switching over to Selexol are reported to be around 1 200 millon Yen, providing yearly savings of 470 million Yen and resulting in a payback time or 2.5 years (ECCJ, 1999. p. 160).
The cost of revamping from MEA to aMDEA in the Indian plant totaled US $ 1.25 million (Vaish and Patel, 2002).
|Heat Recovery from Solvent Regeneration in CO2 Removal|
|Pressure Swing Adsorption for Purification|
|Two Stage Regeneration in CO2 Removal System|
Implementation costs for a 1 500 tpd plant are estimated to be in the range of US 3.6 million [2005 values](FAI, 2013)
|High Efficiency Packings and Internals for CO2 Removal Columns||Depending on the scope of upgrading work – , i.e. replacement of packings, and other modifications, for example to the.distributor – the costs are estimated to vary between US $ 50 000 and 200 000 [2007 values](FAI, 2013).||Commercial|