Review:In an overview of technologies for fossil fuel-fired power plants with drastically reduced CO 2 emissions the three main technologies postcombustion capture, pre-combustion capture, and oxyfuel technology are presented and compared. Postcombustion capture using reactive absorption is discussed in detail due to its potential for application on a large scale in the near future. Research Article: Methanol with the potential to be synthesized via renewable feedstocks is a good substitution for petroleum fuel if the process economics were scaled down. One way to address this issue is the development of the process to a level with high hydrocarbon yield. Pressure proved to be an important parameter to achieve higher selectivity toward hydrocarbons. Deoxygenation of Methanol over ZSM-5 in a High Hydrodynamics of a Tapered Bubble ColumnA. Bandyopadhyay*, M. N. Biswas The study of their hydrodynamic characteristics gives important information on the operation of these systems. Axial dispersion, holdup, and pressure drop depend on process conditions, greatly affect the performance of the string reactors, and are indispensable in process simulation.

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NO x storage catalysts. It was found that the strontium-based catalysts are more easily regenerated than the barium-based catalysts and that a higher fraction of the NO x storage sites are regenerated when H 2 is used in combination with CO 2 compared to H 2 only.

However, retrofitting of existing plants with Oxyfuel technology is complex and costly, and retrofitting of Pre combustion capture is not possible. On the other hand, Post combustion capture is suited for retrofitting. Based on the mature technology of reactive absorption, it can be implemented on a large scale in the near future. Therefore, Post combustion capture using reactive absorption is discussed here in some detail.