- Email: [email protected]
01620 Optimal use of coal for power generation in India
0 7 Solid
fuels
(den’ved
so/id
fuels)
Transport, storage
results and information about the Iragmentation brhavi~~ur (11 I:II-ge fuel particles can be gained. The definition of characteristic par-ameter\ cnablcs the practical use of the annly+> data.
03/01617 Australian mine pioneers satellite-based machine guidance
new technology
for
Anon.. Cocrl Age. 2003, 108. (3), 30-32. GPS machine guidance technology is rapidly becoming widely accepted in the surface mining industry, producing well-documented results in terms of improved productivity and efficiency. The application of this technology in the BMA Blackwater coal mine in Queensland, Australia is described.
03/01618
Queensland
coal overview
Coffey, D. Smith, R. Abbott, E. QGML, 2002. 102, (1208). 7 18. Unprecedented international demand for Queenland metallugical coals, coupled with favourable economic factors, have created strong market conditions for Queensland’s coal export business. Coal is Queenland’s highest export earner. The Port of Brisbane Corporation’s coal terminal at Fisherman Islands has an annual throughput of around 2.5 million tonnes.
Economics, business, marketing, policy 03101619
Coal-based
synfuel
continues
to grow
Moray, M. Coal Age, 2002. 107, (1 I), 23325. This article looks at the impacts of the growing coal-based synfuel market on the coal industry. As there are significant economic benefits to using synfuel, it has generally had a lower pricing point than that of coal of similar quality from similar origins. This has resulted in several producers of unprocessed coal losing markets to shippers of synfuel products. However the tax credits associated with synfuels are due to expire on 31 December 2007 and so this may affect future demand. In the central Appalachian coal supply region, although it is estimated that there will be some closing of coal production capacity, a number of coal mines in the region will be able to keep operating as they sell their output to synfuel plants.
03/01620
Optimal
use of coal for power generation
in India
Mathur. R. PI al. Energy Policy, 2003, 31, (4), 319-331. There is growing consensus among energy planners that electricity requirements in India would increase rapidly in the next couple of decades, and that coal would continue to dominate the generating capacity mix. Comparatively high levels of ash in Indian coal causes concern both in terms of the high costs of coal movement and the associated environmental impacts. As per the notification of September 1997, all power plants located in sensitive areas, metropolitan cities and in areas distant from the coalfields, must use coal with <34% ash. However, little progress has been made towards coal beneficiation and some consumers have already started to import non-coking coal for blending in order to comply with environmental requirements. The importance of planning for optimal utilization and transportation of thermal coal cannot be underestimated, especially at a juncture where the Indian coal industry is already facing competition from rising imports of non-coking coal. This paper assesses the optimality of the current patterns of coal movement and examines the economics of beneficiating thermal coals. A linear programming model has been developed based on the framework of the general transportation problem. The authors conclude that the washery is not economically attractive given the current costs, beneficiation technique and quality of Indian non-coking coal. Model simulations have been attempted to assess the possibility of coal beneficiation based on techno-economic considerations rather than political or other considerations. The paper also stresses the possibility of overall gains to the economy by modifying the current patterns of coal movement.
03/01621 Potentials of regenerative solid fuels and the need for the characterization of their combustion behavior Kock, 0. Chemi~ lngenieur Technik, 2002, 74, (lo), 1380-1388. (In German) Apart from coal, solid regenerative fuels will obtain increasing importance in overlapping fuel markets. The combustion process depends on the properties of the fuel and fuels can be characterized using standard analysis tests. These standard test methods are simplified and only valid for the specific fuel type. The transfer to other fuel types can not be made without further analysis tests. The development of new highly informative analysis methods is necessary to compare the different reactions of a combustion process by using fuels of different origin. A new analysis principle fulfils these demands. The main difference to common techniques is that it uses large fuel particles. This leads to a better statistical validation of the analysis 286
Fuel
and
Energy
Abstracts
September
2083
03/01622 Pro ram for investigation, development presentation o7 novel technologies for ecologically use of coal Grinbaum, M. E/cii/~icire.\X~ A review on the development use of coal in I!SA.
03/01623 Prospect 21 st century
S/misil.
2002.
I, 72 XI.
of new technologies
of coal chemical
industry
and clean
1111 RIlw‘1rl)
for ecological
clean
of China in the
Yong, Y.-H. and Feng, X.-T !t4~,1 Hira,~~~,c, 2002. 30. (1). .; 7 (In Chinese) Modes of global energy position and coal utilization in the ?Irt century are analysed in this review. It then goes on to consider the development of Chinese coal chemistry industry.
03/01624 Technical mining industry
developments
in the German
hard-coal
Jurecka, H. CI (11. Er:ntc~trr//, 2002, 55. (8). 417-419. (In <&man) Deutsche Steinkohle AG (DSK) is the European Union’s largest producer of hard coal. Further developments, the implementation ol innovative mining technology and the use of mostly standardized equipment have improved the operating results. The sophisticated state-of-the-art environment is not only reflected by the use of innovative equipment for driving, extraction and infrastructure but also by mapping important processes with the help or virtual technology. The technical highlights for example include the development and use of the most modern winning equipment (plough and drum shearer), conveyors and standard shield-type supports. Innovative conventional and mechanized heading technology (drill carriages. support platforms, heading machines) is also used. Apart from the further development of equipment to be used in the faces and at the headings, it was possible to implement highly efficient conveying and transporting systems for the infrastructure. The developments were largely influenced by boundary conditions, which grew more difficult as the depth increased, and by the objective of increasing the efficiency of the mining equipment, as well as the process, measurement and monitoring technology by means of technical innovations. Improving the safety technology also had a positive effect on the development ol the mining operations.
Derived solid fuels 03/01625 Baosteel coke quality prediction models. II. Establishment and application of coke quality prediction model Zhang, Q. et 01. Rmlino Nuc~.~ue X~hatl. 2002. 30, (4), 300 305. (III Chinese) To satisfy the need of large volume blast furnace, a target value of 66”; or higher for coke strength after reaction (CSR), 26% or lower for coke reacth$ index (CRI) and 87% or higher for JIS drum strength ) were set in Baosteel Co., Ltd, In order to keep up with this PIIS target and control the coke making cost, coke quality prediction models for Baosteel Co. circumstance were required. Summarizing the international and domestic coke quality prediction methods and using evolved GHMP (group method data handle) method, the Baosteel Co. coke quality prediction model was established on the basis of 16 coals and 64 blends carbonization results on simulated coke oven (SCQ). then it is adjusted to the commercial coke oven. One of the important contributions of the model is. that the introduction of the mineral catalysis index (MCI) as a main factor has increased the accuracy of the model for prediction of the CSR and CRI. The MCI takes into account not only the quantity of the mineral composition but also the catalysis ability including both positive and negative Application has proved that the derived model can predict the coke quality and conduct the blending of coal effectively. The mean deviations of predicted values vs the measured ones of DI, CRT and CSR are 0.16%‘, 0.65% and 0.82% respectively.
03/01626
Blast furnace
coke and its manufacture
Fukuda, K. et al. Jpn. Kokai Tokkyo Koho JP 2000 238,578 ((‘1. ClOB57/00), 4 Dee 2002, Appl. 2001:158,382. (In Japanese) The coke has openings of pores with circle equivalent diameter 2 100 nm occupying 540% of the cross-section of the coke. The coke is manufactured in a chamber furnace by filling coal to a packing density. D, 0.7-0.9 t/ma, detected by the required >lOO pm pore opening/coke cross-section area ratio A by A = (-423O)xD + 72.88.
fuels
(den’ved
so/id
fuels)
Transport, storage
results and information about the Iragmentation brhavi~~ur (11 I:II-ge fuel particles can be gained. The definition of characteristic par-ameter\ cnablcs the practical use of the annly+> data.
03/01617 Australian mine pioneers satellite-based machine guidance
new technology
for
Anon.. Cocrl Age. 2003, 108. (3), 30-32. GPS machine guidance technology is rapidly becoming widely accepted in the surface mining industry, producing well-documented results in terms of improved productivity and efficiency. The application of this technology in the BMA Blackwater coal mine in Queensland, Australia is described.
03/01618
Queensland
coal overview
Coffey, D. Smith, R. Abbott, E. QGML, 2002. 102, (1208). 7 18. Unprecedented international demand for Queenland metallugical coals, coupled with favourable economic factors, have created strong market conditions for Queensland’s coal export business. Coal is Queenland’s highest export earner. The Port of Brisbane Corporation’s coal terminal at Fisherman Islands has an annual throughput of around 2.5 million tonnes.
Economics, business, marketing, policy 03101619
Coal-based
synfuel
continues
to grow
Moray, M. Coal Age, 2002. 107, (1 I), 23325. This article looks at the impacts of the growing coal-based synfuel market on the coal industry. As there are significant economic benefits to using synfuel, it has generally had a lower pricing point than that of coal of similar quality from similar origins. This has resulted in several producers of unprocessed coal losing markets to shippers of synfuel products. However the tax credits associated with synfuels are due to expire on 31 December 2007 and so this may affect future demand. In the central Appalachian coal supply region, although it is estimated that there will be some closing of coal production capacity, a number of coal mines in the region will be able to keep operating as they sell their output to synfuel plants.
03/01620
Optimal
use of coal for power generation
in India
Mathur. R. PI al. Energy Policy, 2003, 31, (4), 319-331. There is growing consensus among energy planners that electricity requirements in India would increase rapidly in the next couple of decades, and that coal would continue to dominate the generating capacity mix. Comparatively high levels of ash in Indian coal causes concern both in terms of the high costs of coal movement and the associated environmental impacts. As per the notification of September 1997, all power plants located in sensitive areas, metropolitan cities and in areas distant from the coalfields, must use coal with <34% ash. However, little progress has been made towards coal beneficiation and some consumers have already started to import non-coking coal for blending in order to comply with environmental requirements. The importance of planning for optimal utilization and transportation of thermal coal cannot be underestimated, especially at a juncture where the Indian coal industry is already facing competition from rising imports of non-coking coal. This paper assesses the optimality of the current patterns of coal movement and examines the economics of beneficiating thermal coals. A linear programming model has been developed based on the framework of the general transportation problem. The authors conclude that the washery is not economically attractive given the current costs, beneficiation technique and quality of Indian non-coking coal. Model simulations have been attempted to assess the possibility of coal beneficiation based on techno-economic considerations rather than political or other considerations. The paper also stresses the possibility of overall gains to the economy by modifying the current patterns of coal movement.
03/01621 Potentials of regenerative solid fuels and the need for the characterization of their combustion behavior Kock, 0. Chemi~ lngenieur Technik, 2002, 74, (lo), 1380-1388. (In German) Apart from coal, solid regenerative fuels will obtain increasing importance in overlapping fuel markets. The combustion process depends on the properties of the fuel and fuels can be characterized using standard analysis tests. These standard test methods are simplified and only valid for the specific fuel type. The transfer to other fuel types can not be made without further analysis tests. The development of new highly informative analysis methods is necessary to compare the different reactions of a combustion process by using fuels of different origin. A new analysis principle fulfils these demands. The main difference to common techniques is that it uses large fuel particles. This leads to a better statistical validation of the analysis 286
Fuel
and
Energy
Abstracts
September
2083
03/01622 Pro ram for investigation, development presentation o7 novel technologies for ecologically use of coal Grinbaum, M. E/cii/~icire.\X~ A review on the development use of coal in I!SA.
03/01623 Prospect 21 st century
S/misil.
2002.
I, 72 XI.
of new technologies
of coal chemical
industry
and clean
1111 RIlw‘1rl)
for ecological
clean
of China in the
Yong, Y.-H. and Feng, X.-T !t4~,1 Hira,~~~,c, 2002. 30. (1). .; 7 (In Chinese) Modes of global energy position and coal utilization in the ?Irt century are analysed in this review. It then goes on to consider the development of Chinese coal chemistry industry.
03/01624 Technical mining industry
developments
in the German
hard-coal
Jurecka, H. CI (11. Er:ntc~trr//, 2002, 55. (8). 417-419. (In <&man) Deutsche Steinkohle AG (DSK) is the European Union’s largest producer of hard coal. Further developments, the implementation ol innovative mining technology and the use of mostly standardized equipment have improved the operating results. The sophisticated state-of-the-art environment is not only reflected by the use of innovative equipment for driving, extraction and infrastructure but also by mapping important processes with the help or virtual technology. The technical highlights for example include the development and use of the most modern winning equipment (plough and drum shearer), conveyors and standard shield-type supports. Innovative conventional and mechanized heading technology (drill carriages. support platforms, heading machines) is also used. Apart from the further development of equipment to be used in the faces and at the headings, it was possible to implement highly efficient conveying and transporting systems for the infrastructure. The developments were largely influenced by boundary conditions, which grew more difficult as the depth increased, and by the objective of increasing the efficiency of the mining equipment, as well as the process, measurement and monitoring technology by means of technical innovations. Improving the safety technology also had a positive effect on the development ol the mining operations.
Derived solid fuels 03/01625 Baosteel coke quality prediction models. II. Establishment and application of coke quality prediction model Zhang, Q. et 01. Rmlino Nuc~.~ue X~hatl. 2002. 30, (4), 300 305. (III Chinese) To satisfy the need of large volume blast furnace, a target value of 66”; or higher for coke strength after reaction (CSR), 26% or lower for coke reacth$ index (CRI) and 87% or higher for JIS drum strength ) were set in Baosteel Co., Ltd, In order to keep up with this PIIS target and control the coke making cost, coke quality prediction models for Baosteel Co. circumstance were required. Summarizing the international and domestic coke quality prediction methods and using evolved GHMP (group method data handle) method, the Baosteel Co. coke quality prediction model was established on the basis of 16 coals and 64 blends carbonization results on simulated coke oven (SCQ). then it is adjusted to the commercial coke oven. One of the important contributions of the model is. that the introduction of the mineral catalysis index (MCI) as a main factor has increased the accuracy of the model for prediction of the CSR and CRI. The MCI takes into account not only the quantity of the mineral composition but also the catalysis ability including both positive and negative Application has proved that the derived model can predict the coke quality and conduct the blending of coal effectively. The mean deviations of predicted values vs the measured ones of DI, CRT and CSR are 0.16%‘, 0.65% and 0.82% respectively.
03/01626
Blast furnace
coke and its manufacture
Fukuda, K. et al. Jpn. Kokai Tokkyo Koho JP 2000 238,578 ((‘1. ClOB57/00), 4 Dee 2002, Appl. 2001:158,382. (In Japanese) The coke has openings of pores with circle equivalent diameter 2 100 nm occupying 540% of the cross-section of the coke. The coke is manufactured in a chamber furnace by filling coal to a packing density. D, 0.7-0.9 t/ma, detected by the required >lOO pm pore opening/coke cross-section area ratio A by A = (-423O)xD + 72.88.