- Email: [email protected]
01699 Change in the feedstock base for coking
01
Solid fuels (derived solid fuels)
Planning of support 97101666 mines using MANSUPP
work
in underground
coal
Trans. Sot. Min., Metall., Explor., 1995, Dean, J. M. and Grayson, R. L. (Pub. 1996), 298, 89-9OiSection 1. The Mine Management Support Program (MANSUPP) principally aims to plan a detailed manpower structure for a mine incorporating a production schedule, condition-modified work standards and management preferences to predict required effort-hours for various support activities.
A procedure for the prediction 97101669 for polyfractional mixture flow
of pressure
drops
Sobota, J. BHR Group Conf. Ser. Puhl., 1996, 20, (Slurry Handling and Pipeline Transport. Hydrotransport 13), 283-296. A procedure for predicting the hydraulic gradient for polyfractional mixture flow in pipelines is proposed. Solids conveyed by the liquid. stream are divided into two categories. The first includes coarse solids transported by substantial slip in relation to the liquid. The second is made up of fine solids conveyed with the same velocity as liquid. The results are relevant for the transportation of coal.
97101690 stration
Progress report on the proof-of-concept demonof mulled coal technology for the use of wet coal fines
Maxwell, R. C. Coal Fines: Unclaimed Fuel, [Annu. Tech. Conf.], 20th, S. D. Coal & Slurry Technology 1995, 209-216. Edited by Serkin, Association, Washington, DC. The demonstration phase of work in a commercial setting is discussed.
Rational use of coal resources 97101691 fuel strategy of Russia
as a component
of
Ugol’, 1996, (4) 57-60. (In Russian) Molchanov, A. E et al. This review discusses the role of coal in fuel strategy of Russia. Two groups of technologies are discussed: those ready for implementation and those requiring further evaluation in scaled up tests and preliminary economic evaluation.
Review of the Eocene program 97101692 to Tatabanya coal mines, Hungary Part 3
with consideration
Solymos, A. Banyaw. Kohasz. Lapok, Banyasz., 1996, 129, (4). 341-349. (In Hungarian) Coal mining activities and budgeting are discussed.
Status of Shanxi Province’s power and coal 97101693 reserves Proc. Annu. Int. Pittshurgh Coal Conf, Wu, Prof. D.-C. and Shang, J.-Y. 1995, 12, 1086-1093. Coal and power industries
of the province
A study of solvent-refined 97101694 metry and mass spectroscopy
are reviewed.
coal using thermogravi-
Proc. Annu. Int. Pittsburgh Cod Confi 1995, 12,881-886. Kopp, 0. C. et al. Two West Virginia coals, the Powellton (Raleigh County) and the Bakerstown (Barbour County), extracted using NMP, were studied using a combined TG-MS technique. The results of this study suggest that the solvent extraction process is very efficient, leaving approximately 1% (or less) ash in the solvent extract. Information obtained through combined T&MS analyses reveals the temperatures at which the various volatile components are released from a coal and its extract, and the sequence in which they are released. Such information may be useful in monitoring the extraction process and predicting the behaviour of such materials during subsequent processes, such as liquefaction and activation.
97tO1695
Sheremeta. This paper system) in had on the
142
97101697 Poland
The Acurex
briquette:
Our experience
in Krakow,
Natschke, D. F. et al. Proc. Annu. Int. Pitt.dnrrgh Coal Conf,, 1995. 12, 47S480. This paper discusses the AEC briquette, a low cost briquette prepared from coal fines and an inorganic binder which may be used as a replacement for coal without any equipment modifications. Combustion test data for its use in residential stoves is described.
97101696 Alternative feedstock for needle coke from coal-derived material
manufacture
of
pitch
Cheshko, F. F. et al. Koks Khim., 1995, (7), 19-24. (In Russian) The process involves the heating of a broad anthracene oil fraction at 455°C and 7 MPa for 4 h in a batch reactor. Pitch is then isolated from this thermally treated anthracene oil by distillation This pitch is coked to give needle coke for production of electrodes and other carbonaceous materials,
97101699
Change
in the feedstock
base for coking
Gainieva, G. R. et al. Koks Khim. 1995, (8), 10-14. (In Russian) Charge density is increased by adding five percent gas coal to coking charges, without worsening the mechanical strength and physicochemical properties of the resultant coke.
97lO1700 Characterization of petroleum coke as an additive in metallurgical coke making. Modification of thermoplastic properties of coal Menendez, J. A. Energy Fuels, 1996, 10, (6), 1262-126X. The assumption that green petroleum coke behaves as an inert material in co-carbonization with coking coal blends and has no active behaviour on the important thermoplastic properties of the coal blend is investigated. The objective of this study was to clarify effects arising when different petroleum cokes are added to a single coal or an industrial blend. A good correlation among the parameters obtained from the above techniques/methods was found, indicating that the presence of unreacted and partially carbonized material, the hydrogen donor ability, the relative proportion of Me and methylene groups, the amount of volatile matter released at a temperature range between 400 and 5OO”C, the temperature of maximum volatile matter evolution and, finally, the agglomeration degree of petroleum cokes can be considered as important factors in the plastic properties of co-carbonization systems with coking coals.
97lO1701 COaldimethyl ether (DME) DME-to-hydrocarbons (DTH) process
feed
mixtures
in the
Sardesai, A. et al. Proc. Annu. Int. Pittsburgh Coal Conf., 1995, 12, 716721. The second stage in the conversion of synthesis gas to hydrocarbons is the DTH process, in which DME produced from the LPDME (liquid-phase DME manufacturing) process is converted to CI..I,,-hydrocarbons. The product distribution can be controlled by varying the operating temperature, pressure and space velocity of DME. Data obtained in the production of hydrocarbons from DME-CO2 mixtures were consistent with the accepted mechanism of hydrocarbon formation for DME-MeOH systems.
97101702 Coking and deactivation of H-ZSM-5 zeolites during ethylbenzene disproportionation: I. Formation and location of coke Chen, W.-H. .I. Chin. Chenz. Sot. (Taipei) 1996, 43, (4), 305-313. TGA, adsorption, IR, and I”’ Xe NMR techniques were used to investigate the mode of deactivation and coke formation in a H-ZSM-5 zeolite during ethylbenzene disproportionation. The initial rate of deactivation and the total coke content are found to increase with increasing conversion level, It is found that neither the pore opening nor the acid site were completely blocked off by coke residues even at the highest coke loading.
World coal
Chadwick, J. Min. Mug. 1996, 175, (4), 213-216, 218-219. In 1995, world coal consumption was characterized by strong demand growth in the emerging market economies, which was countered by declines in the countries of the former Soviet Union. This resulted in an overall global increase of 1.2%, during which coal prices increased by nearly 20% to a IO-yr high. A discussion of the world coal market in 1995 is presented.
97101696 operations
Derived Solid Fuels
A year of GPS at Fording
Coal Limited,
Green-hills
R. CIM Bull., 1996, X9, (1002), 66-70. is focuses on the practical application of GPS (global positioning a mining environment and the effect that GPS technology has Greenhills Mine.
Fuel and Energy Abstracts
May 1997
97101703 discussion
Compacting coal and coal fines of the process
Coal Fines: Unclaimed Fuel, /Annu. Burkett, B. et al. 1995, 173-179. Edited by Serkin, S. D. Coal & Association, Washington, DC.
into coal logs: a Tech. Conf.J, 2Oth, Slurry Technology
97101704 A comparative study on the synthesis of carbon fibers and activated carbon fibers from various coal liquids Fei, Y. Q. et al. Proc. Annu. Int. Pittsburgh Coal Conf., 199.5, 12. 352-357. More than ten different coal liquids, producted from various processes and coals, were used to study the synthesis of pitch carbon fibres and activated carbon fibres. Slight or non-hydrogenating processes at controlled conditions appear to be suitable for producing carbon fibre precursors with reasonable spinning characteristics, high C/H, high softening/spinning temperature and low cost, allowing effective and efficient oxidative stabilization.
Solid fuels (derived solid fuels)
Planning of support 97101666 mines using MANSUPP
work
in underground
coal
Trans. Sot. Min., Metall., Explor., 1995, Dean, J. M. and Grayson, R. L. (Pub. 1996), 298, 89-9OiSection 1. The Mine Management Support Program (MANSUPP) principally aims to plan a detailed manpower structure for a mine incorporating a production schedule, condition-modified work standards and management preferences to predict required effort-hours for various support activities.
A procedure for the prediction 97101669 for polyfractional mixture flow
of pressure
drops
Sobota, J. BHR Group Conf. Ser. Puhl., 1996, 20, (Slurry Handling and Pipeline Transport. Hydrotransport 13), 283-296. A procedure for predicting the hydraulic gradient for polyfractional mixture flow in pipelines is proposed. Solids conveyed by the liquid. stream are divided into two categories. The first includes coarse solids transported by substantial slip in relation to the liquid. The second is made up of fine solids conveyed with the same velocity as liquid. The results are relevant for the transportation of coal.
97101690 stration
Progress report on the proof-of-concept demonof mulled coal technology for the use of wet coal fines
Maxwell, R. C. Coal Fines: Unclaimed Fuel, [Annu. Tech. Conf.], 20th, S. D. Coal & Slurry Technology 1995, 209-216. Edited by Serkin, Association, Washington, DC. The demonstration phase of work in a commercial setting is discussed.
Rational use of coal resources 97101691 fuel strategy of Russia
as a component
of
Ugol’, 1996, (4) 57-60. (In Russian) Molchanov, A. E et al. This review discusses the role of coal in fuel strategy of Russia. Two groups of technologies are discussed: those ready for implementation and those requiring further evaluation in scaled up tests and preliminary economic evaluation.
Review of the Eocene program 97101692 to Tatabanya coal mines, Hungary Part 3
with consideration
Solymos, A. Banyaw. Kohasz. Lapok, Banyasz., 1996, 129, (4). 341-349. (In Hungarian) Coal mining activities and budgeting are discussed.
Status of Shanxi Province’s power and coal 97101693 reserves Proc. Annu. Int. Pittshurgh Coal Conf, Wu, Prof. D.-C. and Shang, J.-Y. 1995, 12, 1086-1093. Coal and power industries
of the province
A study of solvent-refined 97101694 metry and mass spectroscopy
are reviewed.
coal using thermogravi-
Proc. Annu. Int. Pittsburgh Cod Confi 1995, 12,881-886. Kopp, 0. C. et al. Two West Virginia coals, the Powellton (Raleigh County) and the Bakerstown (Barbour County), extracted using NMP, were studied using a combined TG-MS technique. The results of this study suggest that the solvent extraction process is very efficient, leaving approximately 1% (or less) ash in the solvent extract. Information obtained through combined T&MS analyses reveals the temperatures at which the various volatile components are released from a coal and its extract, and the sequence in which they are released. Such information may be useful in monitoring the extraction process and predicting the behaviour of such materials during subsequent processes, such as liquefaction and activation.
97tO1695
Sheremeta. This paper system) in had on the
142
97101697 Poland
The Acurex
briquette:
Our experience
in Krakow,
Natschke, D. F. et al. Proc. Annu. Int. Pitt.dnrrgh Coal Conf,, 1995. 12, 47S480. This paper discusses the AEC briquette, a low cost briquette prepared from coal fines and an inorganic binder which may be used as a replacement for coal without any equipment modifications. Combustion test data for its use in residential stoves is described.
97101696 Alternative feedstock for needle coke from coal-derived material
manufacture
of
pitch
Cheshko, F. F. et al. Koks Khim., 1995, (7), 19-24. (In Russian) The process involves the heating of a broad anthracene oil fraction at 455°C and 7 MPa for 4 h in a batch reactor. Pitch is then isolated from this thermally treated anthracene oil by distillation This pitch is coked to give needle coke for production of electrodes and other carbonaceous materials,
97101699
Change
in the feedstock
base for coking
Gainieva, G. R. et al. Koks Khim. 1995, (8), 10-14. (In Russian) Charge density is increased by adding five percent gas coal to coking charges, without worsening the mechanical strength and physicochemical properties of the resultant coke.
97lO1700 Characterization of petroleum coke as an additive in metallurgical coke making. Modification of thermoplastic properties of coal Menendez, J. A. Energy Fuels, 1996, 10, (6), 1262-126X. The assumption that green petroleum coke behaves as an inert material in co-carbonization with coking coal blends and has no active behaviour on the important thermoplastic properties of the coal blend is investigated. The objective of this study was to clarify effects arising when different petroleum cokes are added to a single coal or an industrial blend. A good correlation among the parameters obtained from the above techniques/methods was found, indicating that the presence of unreacted and partially carbonized material, the hydrogen donor ability, the relative proportion of Me and methylene groups, the amount of volatile matter released at a temperature range between 400 and 5OO”C, the temperature of maximum volatile matter evolution and, finally, the agglomeration degree of petroleum cokes can be considered as important factors in the plastic properties of co-carbonization systems with coking coals.
97lO1701 COaldimethyl ether (DME) DME-to-hydrocarbons (DTH) process
feed
mixtures
in the
Sardesai, A. et al. Proc. Annu. Int. Pittsburgh Coal Conf., 1995, 12, 716721. The second stage in the conversion of synthesis gas to hydrocarbons is the DTH process, in which DME produced from the LPDME (liquid-phase DME manufacturing) process is converted to CI..I,,-hydrocarbons. The product distribution can be controlled by varying the operating temperature, pressure and space velocity of DME. Data obtained in the production of hydrocarbons from DME-CO2 mixtures were consistent with the accepted mechanism of hydrocarbon formation for DME-MeOH systems.
97101702 Coking and deactivation of H-ZSM-5 zeolites during ethylbenzene disproportionation: I. Formation and location of coke Chen, W.-H. .I. Chin. Chenz. Sot. (Taipei) 1996, 43, (4), 305-313. TGA, adsorption, IR, and I”’ Xe NMR techniques were used to investigate the mode of deactivation and coke formation in a H-ZSM-5 zeolite during ethylbenzene disproportionation. The initial rate of deactivation and the total coke content are found to increase with increasing conversion level, It is found that neither the pore opening nor the acid site were completely blocked off by coke residues even at the highest coke loading.
World coal
Chadwick, J. Min. Mug. 1996, 175, (4), 213-216, 218-219. In 1995, world coal consumption was characterized by strong demand growth in the emerging market economies, which was countered by declines in the countries of the former Soviet Union. This resulted in an overall global increase of 1.2%, during which coal prices increased by nearly 20% to a IO-yr high. A discussion of the world coal market in 1995 is presented.
97101696 operations
Derived Solid Fuels
A year of GPS at Fording
Coal Limited,
Green-hills
R. CIM Bull., 1996, X9, (1002), 66-70. is focuses on the practical application of GPS (global positioning a mining environment and the effect that GPS technology has Greenhills Mine.
Fuel and Energy Abstracts
May 1997
97101703 discussion
Compacting coal and coal fines of the process
Coal Fines: Unclaimed Fuel, /Annu. Burkett, B. et al. 1995, 173-179. Edited by Serkin, S. D. Coal & Association, Washington, DC.
into coal logs: a Tech. Conf.J, 2Oth, Slurry Technology
97101704 A comparative study on the synthesis of carbon fibers and activated carbon fibers from various coal liquids Fei, Y. Q. et al. Proc. Annu. Int. Pittsburgh Coal Conf., 199.5, 12. 352-357. More than ten different coal liquids, producted from various processes and coals, were used to study the synthesis of pitch carbon fibres and activated carbon fibres. Slight or non-hydrogenating processes at controlled conditions appear to be suitable for producing carbon fibre precursors with reasonable spinning characteristics, high C/H, high softening/spinning temperature and low cost, allowing effective and efficient oxidative stabilization.