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首页> 美国政府科技报告 >Select Use of Coal and Natural Gas in Utility Boilers. A Manual for Evaluating Environmental, Technical, and Legal Aspects: One Way to Overcome Foreign-Oil Dependency
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Select Use of Coal and Natural Gas in Utility Boilers. A Manual for Evaluating Environmental, Technical, and Legal Aspects: One Way to Overcome Foreign-Oil Dependency

机译：选择在电站锅炉中使用煤和天然气。评估环境，技术和法律方面的手册：克服外国石油依赖性的一种方法

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摘要

The purpose of this study was to determine the environmental, technical, economic, and legal/regulatory aspects of converting non-coal-fired utility boilers to concurrent or sequential firing of coal and natural gas for presentation in this manual. Technically, the burning of coal and natural gas in a boiler is not difficult, as the two fuels are quite compatible. The consensus of utility operators who have fired the two fuels simultaneously and sequentially in the same boiler is that the natural gas enhances the coal burning, improves boiler operation and reliability, and decreases maintenance costs. Most of these boilers in which coal and gas have been fired, however, were originally designed to burn coal or were units with liberal spacing between boiler convection tubes. Nevertheless, the comments of successful users of this approach are important because of the many boilers with complete or partial coal firing capability that are currently burning oil and have done so for years. It is hoped that this manual will encourage utilities to evaluate the benefits of coal/gas firing in situations where conversion to 100% coal firing is not feasible for technical, regulatory, or economic reasons. Although ascertaining the effects of coal/gas firing in a boiler specifically designed to burn oil and/or gas requires further testing, much of the information in this manual applies to these units as well as those originally designed for coal firing. The hope is that the conversion of these units would not only reduce emissions, but also that the gas portion of the fuel would make complete revamping of these boilers unnecessary for their successful conversion to coal-fired units. It is also possible that this approach could eliminate altogether the need for expensive flue gas desulfurization equipment or greatly reduce the cost of such equipment. 12 figs., 35 tabs. (ERA citation 12:015680)

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