Carbon dioxide emissions: How does UCG ``stack up``?
- Williams Companies, Inc., Pittsburgh, PA (United States)
- ChemPlant Engineers, Pittsburgh, PA (United States)
Pulverized coal combustion for power generation is the dominant source of electricity throughout much of the world. Coal gasification technology has made significant advances over the past two decades and, when a coal based fuel gas is fired in a combined cycle facility, it offers a major reduction in carbon dioxide emissions over PC fired plants. Many developing countries have domestic coal reserves in sufficient quantity to support one or more power plants. Although natural gas is less plentiful than coal, it is a much preferred fuel for new electric generating capacity because of its lower emissions of greenhouse gases, lower carbon content of the fuel gas, and its higher efficiency from combustion in a combined cycle power plant. However, the existing concern over greenhouse gases, primarily carbon dioxide, has created some hesitancy on the part of governments and world agencies funding new projects to support adding coal fired power plant capacity to meet growing demands for electricity. Many of the funding sources have defined requirements for any new project to address and provide methods for mitigating the impact of power generation on greenhouse gas emissions. This paper compares alternative modes for power generation from coal, and compares them to natural gas in terms of lb. moles of carbon dioxide emitted per unit of electricity (Megawatt) produced. The comparison considers the total emissions associated with each method including extraction of the coal and operation of each process unit including oxygen production.
- OSTI ID:
- 349221
- Report Number(s):
- CONF-980985-; ISBN 1-890977-15-2; TRN: IM9924%%221
- Resource Relation:
- Conference: 15. annual international Pittsburgh coal conference, Pittsburgh, PA (United States), 14-18 Sep 1998; Other Information: PBD: 1998; Related Information: Is Part Of Fifteenth annual international Pittsburgh coal conference: Proceedings; PB: [1500] p.
- Country of Publication:
- United States
- Language:
- English
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