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Publication Title | Coal and Coal/Biomass-Based Power Generation

Organic Rankine Cycle

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Chapter 2

Coal and Coal/Biomass-Based Power Generation

James R. Katzer

Abstract Coalisakey,growingcomponentinpowergenerationglobally.Itgenerates 50% of U.S. electricity, and criteria emissions from coal-based power generation are being reduced. However, CO2 emissions management has become central to coal’s future. To meet growing electricity demand, coal use is expected to increase in the foreseeable future because it is cheap and abundant. For this to happen CO2 capture and geologic sequestration (CCS) is a critical technology. With CCS, coal-based power generation can be made much cleaner. Commercial demonstration of existing technologies, including CCS, with the resultant improvements that will accrue, is key to advancing coal-based power generation and addressing important environmental issues.

2.1 Introduction

Coal is used to generate 50% of U.S. electricity and about 40% of the electricity produced globally [1]. For China and India, the fraction of power that is based on coal is about 77% and 74% respectively [2], and it is growing. Because of its history, coal-based power generation in the absence of adequate controls can be a major emitter of air pollutants and thus is perceived as being dirty. CO2 emissions from coal-based power generation have now also become a major concern. This chapter addresses both of these issues but focuses on CO2 emissions and the impli- cations to global climate change.

Total global CO2 emissions from coal-based power generation totaled almost 7.5 billion tonnes in 2007; this is about 30% of the global fossil-related CO2 emissions.

The findings included in this chapter do not necessarily reflect the view or policies of the Environmental Protection Agency. Mention of trade names or commercial products does not constitute Agency endorsement or recommendation for use.

J.R. Katzer ()

CBE, Iowa State University, Ames, IA 50012, USA e-mail: jrksail@comcast.net

F.T. Princiotta (ed.), Global Climate Change - The Technology Challenge, 51 Advances in Global Change Research 38, DOI 10.1007/978-90-481-3153-2_2,

© Springer Science+Business Media B.V. 2011

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