Absorption of CO2 With Amines in a Semiclosed GT Cycle: Plant Performance and Operating Costs PUBLIC ACCESS

[+] Author Affiliations
A. Corti, L. Lombardi, G. Manfrida

Università di Firenze, Italy

Paper No. 98-GT-395, pp. V003T08A025; 7 pages
  • ASME 1998 International Gas Turbine and Aeroengine Congress and Exhibition
  • Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations
  • Stockholm, Sweden, June 2–5, 1998
  • Conference Sponsors: International Gas Turbine Institute
  • ISBN: 978-0-7918-7864-4
  • Copyright © 1998 by ASME


A CO2 removal system, using aqueous solutions of amines, is applied to a Semi-Closed Gas Turbine/Combined Cycle (SCGT/CC) power plant.

The SCGT/CC is interesting because of the possibility of achieving low emissions at the stack, with a decreased overall flow rate, lower NOx concentration and an increased CO2 concentration (over 15% in volume), which facilitates the removal treatment.

Several compositions of the absorbing solution have been investigated, by means of simulations with ASPEN PLUS.

A 18% DEA + 12% MDEA composition resulted the most convenient in terms of flow rate and energy requirement for the stripping.

A cost analysis of the removal plant allows to estimate additional costs for CO2 removal with respect to conventional power plants.

Copyright © 1998 by ASME
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