Cost estimates for manufacture of ammonium sulfate fertilizer from gypsum-rich by product of the flue gas desulfurization
- Illinois State Geological Survey, Champaign, IL (United States)
Under the United States Department of Energy`s Clean Coal Technology program, the 1990 amendments to the Clean Air Act mandate a 2-stage 10-million ton reduction in sulfur dioxide emissions in the United States. Emission controls using flue gas desulfurization (FGD) technologies have been commercially demonstrated. However, in addition to capital costs for equipment and operating expenses, plants burning high sulfur coal and using FGD technologies must also bear increasingly expensive landfill disposal costs for the solid waste produced. The FGD technologies would be much less of a financial burden if successful commercial uses were developed for the gypsum-rich by-products of the wet limestone scrubbing. The goal of this project was to assess the technical and economic feasibility of producing fertilizer-grade ammonium sulfate from gypsum produced as part of limestone FGD processes. The procedure and the preliminary cost estimates of the process will be presented in this paper.
- OSTI ID:
- 370352
- Report Number(s):
- CONF-960376--
- Country of Publication:
- United States
- Language:
- English
Similar Records
Manufacture of ammonium sulfate fertilizer from FGD-gypsum
Marketing of byproduct gypsum from flue gas desulfurization