Publication

Thermo-economic modeling of membrane processes for CO2 capture

2013
Student Projects

Abstract

In the context of greenhouse gas emissions reduction, carbon capture and storage (CCS) is considered as a promising option, especially for power plants applications. Three different concepts are mainly investigated; pre-, oxy-fuel and post-combustion capture. For separating the CO2 from the other gases several technologies can be applied such as chemical or physical absorption, adsorption or membrane processes. The technology choice and performance is defined by the gas composition and flowrate, the CO2 concentration, the required CO2 purity and the technology availability. The technology performance is given by the separation efficiency, the thermal and mechanical energy demand and the costs. The aim of this project is to study membrane separation processes for CO2 capture applications and to compare the performance with other technology options for CO2 capture in power plants.

Official source

https://infoscience.epfl.ch/entities/publication/615cda48-c7e0-44f4-8244-b6b2d429e023

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2013
Student Projects

Abstract

Official source

https://infoscience.epfl.ch/entities/publication/615cda48-c7e0-44f4-8244-b6b2d429e023

About this result

Related concepts (32)

Carbon capture and storage

Carbon capture and storage (CCS) is a process in which a relatively pure stream of carbon dioxide (CO2) from industrial sources is separated, treated and transported to a long-term storage location. For example, the carbon dioxide stream that is to be captured can result from burning fossil fuels or biomass. Usually the CO2 is captured from large point sources, such as a chemical plant or biomass plant, and then stored in an underground geological formation. The aim is to reduce greenhouse gas emissions and thus mitigate climate change.

Direct air capture

Direct air capture (DAC) is the use of chemical or physical processes to extract carbon dioxide directly from the ambient air. If the extracted is then sequestered in safe long-term storage (called direct air carbon capture and sequestration (DACCS)), the overall process will achieve carbon dioxide removal and be a "negative emissions technology" (NET). As of 2022, DAC has yet to become profitable because the cost of using DAC to sequester carbon dioxide is several times the carbon price.

Bioenergy with carbon capture and storage

Bioenergy with carbon capture and storage (BECCS) is the process of extracting bioenergy from biomass and capturing and storing the carbon, thereby removing it from the atmosphere. BECCS can be a "negative emissions technology" (NET). The carbon in the biomass comes from the greenhouse gas carbon dioxide (CO2) which is extracted from the atmosphere by the biomass when it grows. Energy ("bioenergy") is extracted in useful forms (electricity, heat, biofuels, etc.

Related publications (5)

Thermo-economic modeling of membrane processes for CO2 capture

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