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Title: PowerChip{reg_sign} gypsum: A new commercial product from the combustion of high sulfur coals and Orimulsion{reg_sign}

Abstract

In order to meet with the SO{sub 2} reduction provisions of the 1990 Clean Air Act Amendments, US utilities are faced with several compliance options. One of these is the installation of flue gas desulfurization facilities which produce either a by-product calcium sulfite sludge which must be landfilled, or a forced oxidized industrial gypsum. This gypsum can be difficult and time consuming to unload from railcars or trucks due to the fact that it has poor flowability. After 5 years of development, a technology now exists and is being commercially demonstrated which agglomerates industrial FGD gypsum into a physical form which may be directly compatible with the currently installed equipment traditionally used to handle natural rock gypsums in wallboard and cement plants. This technology uses pressure roll forced compaction to agglomerate the wet finely divided powder gypsum into a durable chip form of industrial gypsum. This novel technology known as PowerChip{reg_sign} gypsum has been developed and patented by Pure Air of Allentown, Pennsylvania, US. A pilot commercialization and demonstration is ongoing at Pure Air`s Bailly Plant in Chesterton, Indiana. The results, data and performance of the product from this demonstration unit will be discussed. Flowability tests were undertaken to evaluatemore » handling properties of the Powder-Chip gypsum and suggestions for handling equipment will be discussed and compared to the traditional powder form or wet filter cake gypsum and natural gypsum rock. In essence, current FGD technology enables continued burning of high sulfur coal, or Orimulsion{reg_sign} in compliance with environmental regulations, while producing an industrial gypsum product.« less

Authors:
; ; ;  [1];  [2]
  1. Pure Air, Allentown, PA (United States)
  2. H. Colijn and Associates, Inc., Pisgah Forrest, NC (United States)
Publication Date:
OSTI Identifier:
458501
Report Number(s):
CONF-960322-
ISBN 0-932066-21-6; TRN: IM9717%%287
Resource Type:
Conference
Resource Relation:
Conference: 21. international technical conference on coal utilization and fuel systems, Clearwater, FL (United States), 18-21 Mar 1996; Other Information: PBD: [1996]; Related Information: Is Part Of Proceedings of the 21. international technical conference on coal utilization and fuel systems; Sakkestad, B.A. [ed.]; PB: 859 p.
Country of Publication:
United States
Language:
English
Subject:
20 FOSSIL-FUELED POWER PLANTS; 01 COAL, LIGNITE, AND PEAT; 04 OIL SHALES AND TAR SANDS; GYPSUM; WASTE PRODUCT UTILIZATION; FOSSIL-FUEL POWER PLANTS; AGGLOMERATION; COAL; BITUMENS; MATERIALS HANDLING; FLUE GAS; DESULFURIZATION; FUEL SLURRIES; SOLIDS FLOW; CHEMICAL PROPERTIES; PHYSICAL PROPERTIES; MECHANICAL PROPERTIES

Citation Formats

Welliver, W R, Roth, T J, Brown, J R, Hudson, M S, and Colijn, H. PowerChip{reg_sign} gypsum: A new commercial product from the combustion of high sulfur coals and Orimulsion{reg_sign}. United States: N. p., 1996. Web.
Welliver, W R, Roth, T J, Brown, J R, Hudson, M S, & Colijn, H. PowerChip{reg_sign} gypsum: A new commercial product from the combustion of high sulfur coals and Orimulsion{reg_sign}. United States.
Welliver, W R, Roth, T J, Brown, J R, Hudson, M S, and Colijn, H. 1996. "PowerChip{reg_sign} gypsum: A new commercial product from the combustion of high sulfur coals and Orimulsion{reg_sign}". United States.
@article{osti_458501,
title = {PowerChip{reg_sign} gypsum: A new commercial product from the combustion of high sulfur coals and Orimulsion{reg_sign}},
author = {Welliver, W R and Roth, T J and Brown, J R and Hudson, M S and Colijn, H},
abstractNote = {In order to meet with the SO{sub 2} reduction provisions of the 1990 Clean Air Act Amendments, US utilities are faced with several compliance options. One of these is the installation of flue gas desulfurization facilities which produce either a by-product calcium sulfite sludge which must be landfilled, or a forced oxidized industrial gypsum. This gypsum can be difficult and time consuming to unload from railcars or trucks due to the fact that it has poor flowability. After 5 years of development, a technology now exists and is being commercially demonstrated which agglomerates industrial FGD gypsum into a physical form which may be directly compatible with the currently installed equipment traditionally used to handle natural rock gypsums in wallboard and cement plants. This technology uses pressure roll forced compaction to agglomerate the wet finely divided powder gypsum into a durable chip form of industrial gypsum. This novel technology known as PowerChip{reg_sign} gypsum has been developed and patented by Pure Air of Allentown, Pennsylvania, US. A pilot commercialization and demonstration is ongoing at Pure Air`s Bailly Plant in Chesterton, Indiana. The results, data and performance of the product from this demonstration unit will be discussed. Flowability tests were undertaken to evaluate handling properties of the Powder-Chip gypsum and suggestions for handling equipment will be discussed and compared to the traditional powder form or wet filter cake gypsum and natural gypsum rock. In essence, current FGD technology enables continued burning of high sulfur coal, or Orimulsion{reg_sign} in compliance with environmental regulations, while producing an industrial gypsum product.},
doi = {},
url = {https://www.osti.gov/biblio/458501}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Dec 31 00:00:00 EST 1996},
month = {Tue Dec 31 00:00:00 EST 1996}
}

Conference:
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