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Mulled coal---A beneficiated coal form for use as a fuel or fuel intermediate

Description: The storage, transport and handling of beneficiated coals in the form of a modified wet cake ( mulled coal'') to yield a coal water fuel having acceptable properties for atomization and combustion on industrial, commercial and/or residential scales, have been investigated. The Mulled Coal project is divided into a series of tasks designed to produce formulations and system designs suitable to convert fine coal wet cakes'' into a material that can be stored, handled, and transported to a site wh… more
Date: May 1, 1991
Partner: UNT Libraries Government Documents Department
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Mulled coal: A beneficiated coal form for use as a fuel or fuel intermediate

Description: Energy International is developing a technology that will create a staged formulation with the first coal form (Mulled Coal) that can be stored, transported, and pumped. Just prior to combustion, the Mulled Coal (MC) would be modified to provide the properties needed for proper atomization. This concept is an alternative to the expensive and energy intensive thermal drying processing of fine coal wet cakes. The material is suitable for both direct feed use in conventional and fluid bed combusto… more
Date: October 1, 1991
Partner: UNT Libraries Government Documents Department
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Mulled coal---A beneficiated coal form for use as a fuel or fuel intermediate. Final technical progress report No. 3, October 1, 1990--December 31, 1990

Description: The storage, transport and handling of beneficiated coals in the form of a modified wet cake (``mulled coal``) to yield a coal water fuel having acceptable properties for atomization and combustion on industrial, commercial and/or residential scales, have been investigated. The Mulled Coal project is divided into a series of tasks designed to produce formulations and system designs suitable to convert fine coal ``wet cakes`` into a material that can be stored, handled, and transported to a site… more
Date: May 1, 1991
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal based fuels. Volume 1, Final report and appendix A (Topical report)

Description: Studies and data applicable for fuel markets and coal resource assessments were reviewed and evaluated to provide both guidelines and specifications for premium quality coal-based fuels. The fuels supplied under this contract were provided for testing of advanced combustors being developed under Pittsburgh Energy Technology Center (PETC) sponsorship for use in the residential, commercial and light industrial (RCLI) market sectors. The requirements of the combustor development contractors were s… more
Date: June 1, 1992
Partner: UNT Libraries Government Documents Department
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Mulled coal - a beneficiation coal form for use as a fuel or fuel intermediate. Technical progress report No. 8, January 1, 1992--March 31, 1992

Description: Under the auspices of the DOE and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; processes to provide deeply-cleaned coal. Developments in advanced beneficiation of coal to meet stringent requirements for low ash and low sulfur can be anticipated to further complicate the problem areas associated with this product. This is attributable to the beneficiated coal being procured in very fine particles with high… more
Date: June 1, 1992
Partner: UNT Libraries Government Documents Department
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Mulled coal - a beneficiation coal form for use as a fuel or fuel intermediate. Technical progress report No. 10, July 1, 1992--September 30, 1992

Description: Under the auspices of the DOE and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; processes to provide deeply-cleaned coal. Developments in advanced beneficiation of coal to meet stringent requirements for low ash and low sulfur can be anticipated to further complicate the problem areas associated with this product. This is attributable to the beneficiated coal being procured in very fine particles with high… more
Date: January 1, 1993
Partner: UNT Libraries Government Documents Department
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Mulled coal - a beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 11, October 1, 1992--December 31, 1992

Description: Under the auspices of the DOE and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; processes to provide deeply-cleaned coal. Developments in advanced beneficiation of coal to meet stringent requirements for low ash and low sulfur can be anticipated to further complicate the problem areas associated with this product. This is attributable to the beneficiated coal being procured in very fine particles with high… more
Date: January 1, 1993
Partner: UNT Libraries Government Documents Department
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Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 4, July 1, 1993--September 30, 1993

Description: The goal of this project is the development of a commercially viable, cobalt-based Fischer-Tropsch (F-T) catalyst for use in a slurry bubble column reactor. Cobalt-based catalysts have long been known as being active for F-T synthesis. They typically possess greater activity than iron-based catalysts, historically the predominant catalyst being used commercially for the conversion of syngas based on coal, but possess two disadvantages that somewhat lessen its value: (1) cobalt tends to make mor… more
Date: December 14, 1993
Creator: Singleton, A. H.
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal-based fuels. Quarterly technical report, May 1, 1988--July 31, 1988

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based furls to combustor developers as needed for their contract work.
Date: December 31, 1988
Partner: UNT Libraries Government Documents Department
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Improvement of storage, handling, and transportability of fine coal. Quarterly technical progress report, February 24, 1994--March 31, 1994

Description: The Mulled Coal Process was developed as a means of overcoming the adverse handling characteristics of wet fine coal without thermal drying. The process involves the addition of a low cost, harmless reagent to wet fine coal using off-the-shelf mixing equipment. Based on laboratory- and bench-scale testing, Mulled Coal can be stored, shipped and burned without causing any of the plugging, sticking, carryback and freezing problems normally associated with wet coal. On the other hand, Mulled Coal … more
Date: May 1, 1994
Partner: UNT Libraries Government Documents Department
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Mulled Coal: A beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 6, July 1, 1991--September 30, 1991

Description: Under the auspices of the Department of Energy and private industry, considerable progress has been made in: preparation of coal-water fuels; combustion of low-ash coal-based fuel forms; and in processes to provide deeply-cleaned coal. Since the inception of the project, we have: developed formulations for stabilizing wet filter cake into a granular free flowing material (Mulled Coal); applied the formulation to wet cake from a variety of coal sources ranging from anthracite to subbituminous co… more
Date: November 1, 1991
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal-based fuels. Quarterly report, November 1, 1988--January 31, 1989

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; Provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. Progress is described.
Date: March 1, 1989
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal-based fuels. Quarterly report, May 1, 1989--July 31, 1989

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; Provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. Progress is described.
Date: September 1, 1989
Partner: UNT Libraries Government Documents Department
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Mulled Coal: A beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 4, January 1, 1991--March 31, 1991

Description: During the past quarter Energy International has evaluated additional mull formulations with varying reagent additives, mixing times, and particle sizes. The Environmental Review was completed and conceptual designs developed for the Mull Preparation and CWF Conversion Systems. As these technical developments move toward commercial application, the needs for coordinated efforts and integrated requirements have become increasingly apparent. Systems are vitally needed to integrate energy delivery… more
Date: September 1, 1991
Partner: UNT Libraries Government Documents Department
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Mulled Coal: A beneficiated coal form for use as a fuel or fuel intermediate. Technical progress report No. 7, October 1, 1991--December 31, 1991

Description: This report covers activities from October 1, 1991 to December 31, 1991. During this period we have: Obtained storage and handling system design data for the granular coal; completed the 74-day aging study on various mull formulations to determine the effects of time and exposure on mull properties; demonstrated the continuous production of mulled coal from wet filter cake; demonstrated the continuous production of CWF from mull; and performed atomization studies on Mulled Coal and CWF prepared… more
Date: February 1, 1992
Partner: UNT Libraries Government Documents Department
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Technology development for cobalt F-T catalysts. Quarterly technical progress report No. 5, October 1, 1993--December 31, 1993

Description: The goal of this project is the development of a commercially viable, cobalt-based Fischer-Tropsch (F-T) catalyst for use in a slurry bubble column reactor. Cobalt-based catalysts have long been known as being active for F-T synthesis. They typically possess greater activity than iron-based catalysts, historically the predominant catalyst being used commercially for the conversion of syngas based on coal, but possess two disadvantages that somewhat lessen its value: (1) cobalt tends to make mor… more
Date: May 31, 1994
Creator: Singleton, A. H.
Partner: UNT Libraries Government Documents Department
open access

Characterization and supply of coal based fuels. Technical progress report, August 1--October 31, 1988

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; Provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. This quarter, work continued on washability studies, deashing and coal delivery requirements.
Date: December 1, 1988
Partner: UNT Libraries Government Documents Department
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Rawlins UCG Demonstration Project. Final technical progress report, May 10, 1988--August 9, 1988

Description: The US Department of Energy and Energy International, Inc. have entered into a Cooperative Agreement to conduct a cost-shared field test demonstrating the operation of commercial-scale steeply dipping bed underground coal gasification (UCG) modules to provide the synthesis gas for a small-scale commercial ammonia plant. The field test and the commercial ammonia plant will be located near Rawlins, Wyoming. During this demonstration test, two or more modules will be operated simultaneously until … more
Date: November 30, 1988
Partner: UNT Libraries Government Documents Department
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[Characterization and supply of coal based fuels]. Quarterly technical report, February 1, 1988--April 30, 1988

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements; Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; Provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. Progress is described.
Date: December 31, 1988
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal based fuels. Quarterly report, November 1, 1986--January 31, 1987

Description: Under the Department of Energy`s Advanced Combustor Technology Program, approximately 11 combustor contractors (under 13 contracts) are developing combustion systems (during 1987--1989) for use in residential, commercial, light industrial and industrial retrofit markets. Sufficient quantities of well-characterized, coal-based fuels possessing specific, appropriate specifications are required by the contractors. Fuels may be dry pulverized coal or coal liquid fuels. In support of these equipment… more
Date: March 1, 1987
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal based fuels. Quarterly report, May 1, 1987--July 31, 1987

Description: Contract objectives are as follows: Develop fuel specifications to serve combustor requirements. Select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base. Provide quality assurance for both the parent coals and the fuel forms. Deliver premium coal-based fuels to combustor developers as needed for their contract work. During the third quarter of this contract (May 1 through July 31, 1987) the primary activities were involved wit… more
Date: September 1, 1987
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal-based fuels. Quarterly report, August 1, 1989--October 31, 1989

Description: Under the Department of Energy`s Combustor Technology Program, combustor contractors are developing combustor systems for use in residential, commercial, light industrial and industrial retrofit markets. Well-characterized coal based fuels possessing appropriate specifications are required by the contractors for their developmental test programs. Fuels may be dry pulverized or micronized coal or coal-water fuels. In support of these equipment development efforts, Energy International is providi… more
Date: December 1, 1989
Partner: UNT Libraries Government Documents Department
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Characterization and supply of coal based fuels. Quarterly technical progress report, February 1, 1987--April 30, 1987

Description: Contract objectives are as follows: develop fuel specifications to serve combustor requirements; select coals having appropriate compositional and quality characteristics as well as an economically attractive reserve base; provide quality assurance for both the parent coals and the fuel forms; and deliver premium coal-based fuels to combustor developers as needed for their contract work. During the second quarter of this contract effort, the primary activities were involved with: continuation o… more
Date: July 1, 1987
Partner: UNT Libraries Government Documents Department
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[Characterization and supply of coal based fuels]. Quarterly technical report, November 1, 1987--January 31, 1988

Description: The capability to produce significant quantities of coal based fuels cannot be supported in the current economic and energy use situation. Once these pieces of experience and information begin to fall into place, the market driven needs will more clearly identify the suite of coals that will satisfy the markets and the performance requirements (i.e., cost, maintenance, energy efficiency, environmental). For now, it is important to provide sufficient quantities of surrogate fuels to enable devel… more
Date: December 31, 1988
Partner: UNT Libraries Government Documents Department
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