https://myresearchspace.uws.ac.uk/ws/files/12236602/2018_11_28_Wilberforce_et_al_Carbon.pdf

Outlook of carbon capture technology and challenges

Review of pre-combustion capture and ionic liquid in carbon capture and storage

Currently, a large proportion of global fossil fuel emissions originate from large point sources such as power generation or industrial processes. This trend is expected to continue until the year 2030 and beyond. Carbon capture and storage (CCS), a straightforward and effective carbon reduction approach, will play a significant role in reducing emissions from these sources into the future if atmospheric carbon dioxide (CO2) emissions are to be stabilized and global warming limited below a threshold of 2 °C. This review provides an update on the status of large scale integrated CCS technologies using solvent absorption for CO2 capture and provides an insight into the development of new solvents, including advanced amine solvents, amino acid salts, carbonate systems, aqueous ammonia, immiscible liquids and ionic liquids. These proposed new solvents aim to reduce the overall cost CO2 capture by improving the CO2 absorption rate, CO2 capture capacity, thereby reducing equipment size and decreasing the energy required for solvent regeneration.

Review of solvent based carbon-dioxide capture technologies

Practical experience in post-combustion CO2 capture using reactive solvents in large pilot and demonstration plants

Explorative analysis of advanced solvent processes for energy efficient carbon dioxide capture by gas–liquid absorption

One of the most promising approaches to tackle the high emission rate of carbon dioxide is the use of Carbon Capture and Storage (CCS) technology. This technology aims at capturing carbon dioxide from power stations and other industrial facilities, compressing, and then transporting it to underground storage locations. Three technological routes for carbon capture from power plants exist: pre-combustion, post-combustion and oxycombustion. Pre-combustion is the removal of the carbon element from fuel gas prior to combustion [1]. This process takes place in Integrated Gasification Combined Cycle (IGCC) plants and operates at high pressures for high concentrations of CO2. IGCC plants still face several obstacles to commercialization. For instance, only two IGCC demonstration plants are in operation in the power sector in the United States. The second option is oxy-fuel combustion, which involves the use of high purity oxygen (instead of air) for fuel combustion and produces a CO2/H2O stream from which water is easily condensed [2]. However, the air (or nitrogen-oxygen) separation step is considered a bottle-neck for this process due to its energy intensiveness and high capital and operational costs. Finally, postcombustion capture involves a highly energy intensive nitrogen-carbon dioxide separation step [3]. As an end-of-pipe technology, this process is easier to implement compared to the other capture routes. In this chapter, the focus will be placed on post-combustion capture technology due to its high maturity, ability to be retrofitted to existing power plants and operational flexibility in switching between capture and no-capture modes [4].

Carbon Dioxide Post-Combustion Capture: Solvent Technologies Overview, Status and Future Directions

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Carbon Dioxide Post-Combustion Capture: Solvent Technologies Overview, Status and Future Directions