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Article: A shot of lime for cleaner burning. (pressure-hydrated lime to reduce sulfur emissions)
- Article from:
- Science News
- Article date:
- April 6, 1985
CopyrightCOPYRIGHT 1985 Science Service, Inc. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)
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Limestone injected into a coal-burning furnace acts like a chemical "sponge" that absorbs sulfur impurities before they escape into the atmosphere. Normally, this method requires large quantities of limestone. However, recent U.S. Department of eneryg tests show that if a special form of limestone is used, only one-third as much limestone is needed to reduce sulfur emissions.
This material, called ...