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Related Experiment Video

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Reducing Willow Wood Fuel Emission by Low Temperature Microwave Assisted Hydrothermal Carbonization

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Coal conversion technologies: some health and environmental effects.

S C Morris, P D Moskowitz, W A Sevian

Science (New York, N.Y.)

|November 9, 1979

Summary

Comparing coal conversion technologies reveals varying health and environmental impacts. Direct combustion of natural gas and oil presents the lowest risks, while synthetic liquid fuels for electric power show the highest.

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Area of Science:

Environmental Science
Energy Policy
Occupational Health

Background:

Coal conversion technologies are emerging in the US, with potential health and environmental risks.
Existing energy technologies also pose distinct hazards.
A comprehensive comparison is needed to understand these impacts.

Purpose of the Study:

To compare health and environmental effects of four coal conversion technologies and four existing energy technologies.
To quantify occupational health and safety risks across fuel cycles.
To assess public health impacts from air pollution and fuel transportation.

Main Methods:

Utilized the Brookhaven Energy System Network Simulator (BESNS) model for emission estimates.
Analyzed complete fuel cycles from extraction to end-use.
Included quantitative occupational and public health damage estimates.

Main Results:

Ranked technologies by increasing energy inefficiency, environmental residuals, and health damage: direct combustion (natural gas/oil) < synthetic fuels (direct combustion) < synthetic gas (electric) < coal (electric) < synthetic liquid fuels (electric).
Identified specific occupational hazards in extraction, transport, processing, and conversion.
Discussed qualitative health impacts from polycyclic organic matter and reduced sulfur.

Conclusions:

Coal conversion technologies present a spectrum of health and environmental challenges.
Energy efficiency and environmental impact generally increase with fuel conversion complexity.
Compliance with environmental legislation, such as the Clean Air Act, is a critical consideration.