Cost and Emissions Reduction in CO2 Capture Plant Dependent on Heat Exchanger Type and Different Process Configurations: Optimum Temperature Approach Analysis

The performance of a plate heat exchanger (PHE), in comparison with the conventional shell and tube types, through trade-off analysis energy cost capital resulting from different temperature approaches cross-exchanger solvent-based CO2 capture process, was evaluated. aim to examine reduction emission potentials exchangers. Each specific type assumed for cross-exchanger, lean amine cooler cool direct contact cooler’s circulation water. study conducted flue gases natural-gas combined-cycle power plant Brevik cement Norway. standard vapour compression absorption configurations were used study. PHE outperformed fixed sheet (FTS-STHX) other STHXs economically emissions reduction. optimal minimum approach cases based on avoided achieved at 4 °C 7 °C. This is where consumption indirect are relatively low. process optimum 16% process. When available excess production steam 50% considered together case about 34% estimated. That compared FTS-STHX without consideration heat. highlights importance waste Norcem plant. recommends use exchangers cross-heat (at 4–7 °C), DCC unit’s water cooler. To achieve best possible respect reduction, it imperative perform approaches.