Manufacture of ammonium sulfate fertilizer from FGD-gypsum. Technical report, March 1--May 31, 1995
- Illinois State Geological Survey, Urbana, IL (United States)
- Illinois Univ., Urbana, IL (United States)
- AlliedSignal-Chemicals (United States)
- Southeast Marketing Chem. Process INc. (SE-ME) (United States)
Goal is to assess technical and economic feasibility for producing fertilizer-grade ammonium sulfate from gypsum produced in limestone flue gas desulfurization (FGD). This is the 1st year of a 2-year program among Illinois State Geological Survey, University of Illinois (Urbana-Champaign), Allied-Signal, Marketing Chem. Process Inc., Henry Fertilizer, Illinois Power Co., and Central Illinois Public Services. In previous quarter, chemistry and process conditions were reviewed and a reactor system set up and used to conduct laboratory tests. FGD-gypsum from Abbott power plant was used. The scrubber, a Chiyoda Thoroughbred 121 FGD, produced a filter cake (98.36% gypsum and < 0.01% CaSO{sub 3}). Conversion of FGD- gypsum to ammonium sulfate was tested at 60-70{degree}C for 5-6 hr. Yield up to 82% and purity up to 95% were achieved for the ammonium sulfate production. During this quarter, more bench-scale experiments including a mass balance analysis were conducted; a yield up to 83% and up to 99% purity were achieved. A literature survey was completed and a preliminary process flow sheet was developed. Economics of the process is being estimated.
- Research Organization:
- Illinois State Geological Survey, Urbana, IL (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States); Illinois Dept. of Energy and Natural Resources, Springfield, IL (United States)
- DOE Contract Number:
- FC22-92PC92521
- OSTI ID:
- 206396
- Report Number(s):
- DOE/PC/92521--T241; ON: DE96007013
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
40 CHEMISTRY
AMMONIUM SULFATES
BENCH-SCALE EXPERIMENTS
BY-PRODUCTS
CHEMICAL PREPARATION
DESULFURIZATION
EXPERIMENTAL DATA
FERTILIZERS
FLOWSHEETS
FLUE GAS
GYPSUM
MATERIALS RECOVERY
PROGRESS REPORT
SOLID WASTES
WASTE PRODUCT UTILIZATION