A Comparative of Life Cycle Assessment of Post-combustion, Pre-combustion and Oxy-fuel CO2 Capture

A Comparative Review on the Environmental Impacts of Combustion-Based Electricity Generation Technologies

“… a Sources: refs − , , , − , , , . b Percentage reduction compared to conventional electricity generation options …”

“…However, the MEA production process and emission of NH 3 during CO 2 capture were found to be other reasons for the increased AP values to some degree. , Although the ranges of increase in EP values vary across the cases, 12 out of 13 cases reported increase in EP when postcombustion CCS options were applied. A study by Petrescu et al claimed the higher EP values were mostly attributed to the operation of a power plant (93.3–100%), while others found other factors, such as ethylene emissions during the production of MEA, NH 3 and MEA emissions from the CCS unit, development of infrastructure for a power plant with CCS technologies, and a waste treatment process at the power plant, also responsible for the impacts. ,, Among the 17 postcombustion CCS cases, Petrescu et al compared three different post CO 2 capture options using MEA, aqueous ammonia, and calcium absorption and concluded calcium absorption as the one with the greatest GWP reduction capability. However, increases in AP and HTP were observed in their analysis, leaving the best CCS option unclear.…”

“…Other mitigation options, such as solar-, wind-, or hydro-based electricity generation have increased recently, but in order to meet the growing demand for electricity, fossil fuels are expected to be dominant sources of electricity in the short term . Considering the energy demand as well as the attempts to alleviate the adverse environmental impacts of power generations, technological improvements, such as pre- or postcombustion carbon capture and storage (CCS), or oxy-fuel combustion technologies, have been proposed as options that can be retrofitted to the existing fossil-fuel-based power plants. − It has been reported that the application of CCS can reduce the global warming impacts of fossil-fuel-based power generation by 47.3–85.5% compared to conventional power generation technologies. ,, However, the extent of the reduction is influenced by a number of factors, including the level of technological advancement, power generation efficiency, and fuel properties (e.g., sulfur content in coal) …”

Li-doped beryllonitrene for enhanced carbon dioxide capture

“…Currently, there are 3 main methods for CO 2 capture: pre-combustion, post-combustion, and oxyfuel. 5 When applied to the burning of fossil fuels, pre-combustion and oxyfuel CO 2 capture are both performed before CO 2 is actually released into the air, while post-combustion CO 2 capture refers to the process of capturing CO 2 from the resulting gas mixtures. Thus, post-combustion CO 2 capture methods are more applicable to the issue of capturing existing greenhouse gasses from the atmosphere.…”

Li-doped Beryllonitrene for Enhanced Carbon Dioxide Capture

“…Thus, the demand for a material to efficiently capture CO 2 from the air has been massive. Currently, there are 3 main methods for CO 2 capture: pre-combustion, postcombustion, and oxyfuel 5 . When applied to the burning of fossil fuels, pre-combustion and oxyfuel CO 2 capture are both performed before CO 2 is actually released into the air, while post-combustion CO 2 capture refers to the process of capturing CO 2 from the resulting gas mixtures.…”