ABSTRACT

Rapid increase in emissions of greenhouse gases (GHGs) has become a major concern to the global community. The Intergovernmental Panel on Climate Change (IPCC) has set an ambitious goal to reduce carbon dioxide (CO2) emission by 50" in 2050 as compared to the level in 1990. Postcombustion CO2 captures (PCC) for coal-fired power plants using packed columns have been reported by many authors. Wang and team carried out a state-of-the-art review of PCC with chemical absorption. Corrosion in PCC plant with MEA solvent is mostly due to absorbed acid gas (CO2) and high solution temperature. The corrosion problems associated with the use of concentrated amine solutions in carbon steel could be managed by the use of more expensive construction material such as stainless steel rather than the commonly used carbon steel. Energy consumption in intensified PCC process includes the electricity energy consumed to drive the intensified absorber and stripper and also heat energy required to generate steam for solvent regeneration.