GHEORGHE BUMBAC,DORIN BOMBOS<br>CO2 Capture on Zeolites for Sustainable Energy Production

GHEORGHE BUMBAC,DORIN BOMBOS
CO2 Capture on Zeolites for Sustainable Energy Production

Abstract:

In the context of the global warming, which is unanimously considered to be determined by the increasing of greenhouse gases emission, CO2 capture and sequestration is one of the possible ways to lower emissions resulted in fossil fuel combustion for industrial energy production. Most of the emissions of CO2 to the atmosphere from the electricity generation and industrial sectors are currently in the form of flue gas from combustion, in which the CO2 concentration is typically 4-14 % by volume, although CO2 is produced at high concentrations by a few industrial processes. Different technologies for CO2 capture are currently under research and development: physical/chemical absorption, adsorption, membrane separation. Today, chemical absorption is a typically process, with an energy cost ranging from 280 up to 960 kcal/kg CO2, depending on the sorbent type and the process configuration. Different types of zeolites with low Si/Al ratio, i.e., high aluminium content (zeolites NaA and NaX), high Si/Al ratio, i.e. low aluminium content (zeolite ZSM-5) and mesoporous silica MCM-41, respectively have been synthesized to check their CO2 adsorption capacity. Some data regarding zeolites synthesis, their characterisation, the experimental setup description and CO2 adsorption results will be presented in this paper. Keywords: zeolite, CO2 capture, pressure swing adsorption

Issue: 2015, Volume 66, Issue 11

Pages:

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