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Title: Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997

Abstract

The objective of this project was to develop and demonstrate two technologies for the placement of coal combustion by-products in abandoned underground coal mines, and to assess the environmental impact of these technologies for the management of CCB materials. The two technologies for the underground placement that were to be developed and demonstrated are: (1) pneumatic placement using virtually dry CCB products, and (2) hydraulic placement using a paste mixture of CCB products with about 70% solids. The period covered by this report is the second quarter of Phase 3 of the overall program. During this period over 8,000 tons of CCB mixtures was injected using the hydraulic paste technology. This amount of material virtually filled the underground opening around the injection well, and was deemed sufficient to demonstrate fully the hydraulic injection technology. By the end of this quarter about 2,000 tons of fly ash had been placed underground using the pneumatic placement technology. While the rate of injection of about 50 tons per hour met design criteria, problems were experienced in the delivery of fly ash to the pneumatic demonstration site. The source of the fly ash, the Archer Daniels Midland Company power plant at Decatur, Illinois ismore » some distance from the demonstration site, and often sufficient tanker trucks are not available to haul enough fly ash to fully load the injection equipment. Further, on some occasions fly ash from the plant was not available. The injection well was plugged three times during the demonstration. This typically occurred due to cementation of the FBC ash in contact with water. After considerable deliberations and in consultation with the technical project officer, it was decided to stop further injection of CCB`s underground using the developed pneumatic technology.« less

Authors:
Publication Date:
Research Org.:
Southern Illinois Univ., Carbondale, IL (United States)
Sponsoring Org.:
USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
OSTI Identifier:
674581
Report Number(s):
DOE/MC/30252-18
ON: DE98058691; TRN: AHC29820%%33
DOE Contract Number:  
FC21-93MC30252
Resource Type:
Technical Report
Resource Relation:
Other Information: PBD: [1997]
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; PROGRESS REPORT; ABANDONED SHAFTS; FLY ASH; UNDERGROUND DISPOSAL; PNEUMATIC TRANSPORT; HYDRAULIC TRANSPORT; GROUND WATER; WATER QUALITY; GROUND SUBSIDENCE; STRATA CONTROL

Citation Formats

Chugh, Y P. Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997. United States: N. p., 1997. Web. doi:10.2172/674581.
Chugh, Y P. Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997. United States. https://doi.org/10.2172/674581
Chugh, Y P. 1997. "Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997". United States. https://doi.org/10.2172/674581. https://www.osti.gov/servlets/purl/674581.
@article{osti_674581,
title = {Management of dry flue gas desulfurization by-products in underground mines. Quarterly report, August 1--October 31, 1997},
author = {Chugh, Y P},
abstractNote = {The objective of this project was to develop and demonstrate two technologies for the placement of coal combustion by-products in abandoned underground coal mines, and to assess the environmental impact of these technologies for the management of CCB materials. The two technologies for the underground placement that were to be developed and demonstrated are: (1) pneumatic placement using virtually dry CCB products, and (2) hydraulic placement using a paste mixture of CCB products with about 70% solids. The period covered by this report is the second quarter of Phase 3 of the overall program. During this period over 8,000 tons of CCB mixtures was injected using the hydraulic paste technology. This amount of material virtually filled the underground opening around the injection well, and was deemed sufficient to demonstrate fully the hydraulic injection technology. By the end of this quarter about 2,000 tons of fly ash had been placed underground using the pneumatic placement technology. While the rate of injection of about 50 tons per hour met design criteria, problems were experienced in the delivery of fly ash to the pneumatic demonstration site. The source of the fly ash, the Archer Daniels Midland Company power plant at Decatur, Illinois is some distance from the demonstration site, and often sufficient tanker trucks are not available to haul enough fly ash to fully load the injection equipment. Further, on some occasions fly ash from the plant was not available. The injection well was plugged three times during the demonstration. This typically occurred due to cementation of the FBC ash in contact with water. After considerable deliberations and in consultation with the technical project officer, it was decided to stop further injection of CCB`s underground using the developed pneumatic technology.},
doi = {10.2172/674581},
url = {https://www.osti.gov/biblio/674581}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Wed Dec 31 00:00:00 EST 1997},
month = {Wed Dec 31 00:00:00 EST 1997}
}