Membrane systems for CO₂ capture and their integration with gas turbine plants

Abstract

The capture and sequestration of the CO2 emitted from fossil-fuelled power plants is gaining widespread interest for controlling anthropogenic emissions of greenhouse gases. Among technology options for CO2 capture, membrane-based gas separation systems are noteworthy owing to their low energy requirements, promising technology evolution and effective integration with power plants. This paper presents a mathematical model for membrane-based separation systems that is able to cover the most significant membrane types and configurations. This model has been integrated in a general simulation method for analysing and optimizing advanced energy conversion systems. Performance of these simulation tools is demonstrated by evaluating the influence of different operating conditions on the behaviour of pre-and post-combustion separation units, based on metallic or polymeric membranes. Finally, the feasibility of integrating a metallic membrane system into a chemically recuperated gas turbine (CRGT) power plant is explored, obtaining encouraging results for CO2 capture.

Membrane-based carbon capture from flue gas: a review

“…They reported that for high purity CO 2 products (>80%), the two-stage system can notably outperform the single-stage process. Similar results were reported by Carapellucci and Milazzo (2003) who highlighted that the two-stage design is the best option for enriching CO 2 stream while the addition of the third stage does not notably improve the CO 2 purity while increases the process complexity markedly. Ho et al (2008a) investigated three processes, i.e., a single-stage and two-stage cascades with and without retentate recycle.…”

“…For instance, Carapellucci and Milazzo (2003) evaluated the influence of different operating conditions on the behavior of pre-and post-combustion separation units, based on metallic or polymeric membranes. They reported encouraging results for CO 2 capture with integration of a metallic membrane system into a chemically recuperated gas turbine (CRGT) power plant.…”

Dynamic simulation of MEA absorption process for CO2 capture from power plants

“…Due to its long period of lifetime, metallic membrane can be potentially be used in integrated gas combined cycle (IGCC) power plant with pre-combustion CO 2 capture (Carapellucci and Milazzo, 2003). The application of membrane gas separation for postcombustion process requires a large membrane areas combined with high energy consumption rates which increases the cost of this capture technology (Pires et al, 2011).…”

Effect of different fixed bed media on the performance of sodium dodecyl sulfate for hydrate based CO 2 capture

“…The International Panel on Climate Change (IPCC) has predicted that, by the year 2100, CO 2 may cause the mean global temperature to rise by around 1.9°C and the mean sea level to increase by around 38 m [2]. Energy related activities are the major source of CO 2 emissions with fossil fuel power plants contributing around 40 percent of the total CO 2 emissions [3,4]. A number of approaches can be used to capture CO 2 from its mixture or pure form.…”