A comparative study of CO2 sorption properties for different oxides

Sushant Kumar,Surendra K Saxena

doi:10.1007/s40243-014-0030-9

Sushant Kumar, Surendra K Saxena

Open Access

https://doi.org/10.1007/s40243-014-0030-9

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Abstract

It is essential to capture CO2 from flue gas stream, which is considered as one of the prime reasons of global warming. Although various CO2 capture technologies already exist, most of these techniques are still unfit to be employed at a large scale. In the past one decade, oxides have emerged as a strong candidate to capture CO2 for post-, pre- and oxy-combustion conditions. Oxides combine with CO2 present in the flue gas and form carbonate, which when heated regenerates the oxides and thus liberates almost pure stream of CO2. The selection criteria for potential oxides entail their CO2 capture capacity, absorption rate, thermal stability, regeneration heat, cost and structural properties. Thus, here, we review the technical merit of all the suitable oxides which can be used for CO2 capture at any fossil fuel burning plants.

Highlights

IntroductionThe problem of carbon dioxide (CO2) emission from various fossil fuel burning plants (such as power, steel, cement and gasifiers) has become an important issue that may tremendously affect our future survival
The problem of carbon dioxide (CO2) emission from various fossil fuel burning plants has become an important issue that may tremendously affect our future survival
Oxides combine with CO2 present in the flue gas and form carbonate, which when heated regenerates the oxides and liberates almost pure stream of CO2

Summary

Introduction

The problem of carbon dioxide (CO2) emission from various fossil fuel burning plants (such as power, steel, cement and gasifiers) has become an important issue that may tremendously affect our future survival. One of the greenhouse gasses, contributes to the global warming effect once released into the atmosphere [1, 2]. The world consumption of natural gas is growing more rapidly than that of coal or liquid fuel. As natural gas has relatively low carbon intensity, its projected contribution to world energyrelated CO2 emissions is only 22 % in 2040. Most of the world energy requirement for transportation and heating (two-thirds of the primary energy demand) is satisfied through petroleum and natural gas. These two fuels are generally chosen due to the relative ease of transportation of liquid or gaseous forms. It is noteworthy that the combustion of hydrocarbon fuels for transportation and heating contributes over half of all

16 Liquid Fuels

14 MgO nanocrystal

Findings

Conclusion