01 Solid fuels (trampod, storage)

95104479 Su ercrltlcal desulturlzatlon of coal wlth alcohols. I. Results In ba ch reactor P Li, W. and Guo, S. Ranliao Huaxue Xuebao, 1994, 22, (4), 439-443. (In Chinese) Describes how high rank coking coals was desulphurized with supercritical alcohols usin tion time an d

a 100 mL batch reactor. The effects of temperature, extrac- ethanol~oal ratio were studied.

95lQ4480 The washlng and preparatlon of lndoneslan coal Sudarsono, A. Asahi Garasu Zaidan Josei Kenkyu Seika Hokoku, 1994, 667-672. Indonesian coal resources are estimated to be more than 36 billion tons, with a majority being of low grade. Chving to its low calorific value, cleaning of this low-grade coal to varying degrees to improve the heat content, can be economically and technically justified. Sink-and-float tests of Central Kalimantan coal samples shows that the ash content can be reduced from 14 down to 7% by usin dense medium concentration method at se aration density about 1.35.

4%. T% e recovery of this concentration

is about 67

Transport, Storage

95104491 Effect of particle size snd particle size dlstrlbutlon on flow propertles of tine coal Schoenlebe, K. and Seewald, H. 573-581.

Au&we&Tech., 1994, 35, (ll),

The first step in the determination of the effect of narrow particle size fractions, on the flow properties of particulate media with a wide particle dlstrjbut!on is the determmatipn of the ?oy properties of the particle size fraction Itself. The flow function of the mdwldual materials, depending on particle diameter, can be described by an exponential function which, depending on the test material, results in differ&t exponents and does not lead to any uniform law. Differences in the particle size relationship to flow prop&ties can be primarily attributed to the different surface gedme- tries or particle shapes, which can be quantified by surface measurements.

Economics, Business, Marketing, Policy

95104482 Aslan coal prospects to 2010 Daniel, hf. IEAPERll8, IEA Coal Research, Gemini House, lo-18 Putney Hill, London SW15 &44, U55.00, Mar. 1995, 64 pp. This report will be of benefit to all executives and anal ayssing energy developments in the rapidly growing an 1

sta involved in evolving Asian

region.

95/04483 Bytom Coal Company S.A. s competltlve partner on the coal market Sokalla. A. and Grxcgorcxyk, J. Prxexl. Gorn.. 1994, 50. (5). 2-9. Reports that the Bytom &al Company S.A., Poland- is &piimenting a programme of radical and rapid restructuring to prove itself a reliable partner for major coal customers.

95m4494 Coal In the UK: The Industry after prlvatlsatlon Parker, M. and Brough, M. 0XER4 Press, Oxford, UK, U95.00, 1995. The book discusses privatisation of the coal industry in the UK.

95104495 Coal to break $9 bllllon export barrier Queensland Coal Australia, Jun. 1995, 1. (4). p. 6.

Reports that higher prices negotiated by Australian coal producers with overseas buyers are expected to 1995-96 about $8 billion for the E

ush the value of coal exports during rst time - about $1 billion more than

predicted for 1994-95.

95104496 Desulturlzatlon of coal by mlcroblal tlotatlon Ohmurn, N. and Saiki, H. Japanese)

Kagaku So& 1995, 37, (21 23-26. (In

Discusses desulphurixation of coal by microbial flotation by Thiobacillus ferrooxidans.

95/04457 Latest developments at ACIRL Queensland Coal Ausrralia, Jun. 1995, 1, (4), p. 9.

sis of the latest developments at the Australian Coal which has extensive facilities in

95104480 The Queensland Coal Board. Queensland coal sta- tlstlcs comments on March 1995 quarter Queensland Coal Australia, Jun. 1995, 1, (4), 11-18.

95104409 Solld-fuel slurry composltlons Ishikawa, K. et al., (Assigned to) Japan Synrhetic Rubber Co&d, JAP. ParJP.O6,340,887, Dec. 1994. The composition is comprised of water-soluble sulphonatcs of C,, ali-

hatic E

diene polymers, solid fuels, and water. Sulphonates improves uidability and storage stability of the solid fuel slurries, and can be

applied to coals, petroleum cokes, pitch, etc.

95104490 South Blackwater Coal boost Queensland Coal Australia, Jun. 1995, 1, (4). p. 10.

Reports that South Blackwater Coal Pty Ltd is set to boost potential annual outout from its Kenmare. Bowen Basin mine from about 3 to 4 million tonhes with the installatibn of a new materials handling system and the upgrading of existing coal preparation facilities.

Derived Solid Fuels

95104491 Analysis of cokln I!

process and V

rsssure evalua- tlon by a two dlmenslonal mat ematlcal mode Di Sante, L. et aL, Proc. lronmaklng Confr, 1994,53, 107-113. In order to study gas development and pressure increase during coal cok- ing, a two-dimensional mathematical model was developed and fitted to data, based on conservation equations for mass, momentum, and energy for all the chemical species present in the coal bed.

95104492 Detalled analysls of the effect of Inertlnlte group maceral scatter on coking propertles of selected coals Matuszewska, A. Polish)

Karbo-Energochenr-EkoL, 1994.39, (12), 321-327. (In

95104493 Development of poroslty In steam activated brown coal chars obtalned In different condltlons of pyrolysis Siemieniewska, T. cl aL, Stud. Surf. ScL CaraL, 1994, 87, 695-705. Two demineralized brown coals - a humodetrinitic and a humotelinitic coal, were subjected to pyrolysis, at heatin rates of 5Vmin and lOOO“/s. The influence of the petrographuz cornposItion of the coals and of the heating rate during in the non-activat e8

yrolysis on the reactwity and development of porosity and steam activated chars is discussed.

95104494 Funher developments In PACTI non-recovery coke productlon systems Ciarimboli, J. P. and Sturgulewski, R. M. 53. 169-175.

Proc. Ironmaking Conf., 1994,

In-a joint venture development between Industrial Minera Mexico, S.A. (IMMSAJ and Pennsvlvania Coke Technolonv Inc. (PACTD. a limited &Juctiin PACT1 n&t-recovery cokemakinrfacility’ waa &alled and commissioned in Mexico in 1992. The results of facility start-up are outlined.

95/04495 Hlstorlc outllne of classlcal coking from beehlve coke ovens In Koppers coke ovens Kobel-Najzarek, E. and Waailewski, P. Karbo-Energochem-EkoL, 1994, 39, (8). 183-190. (In Polish) Describes the development of the coking industry, including progress in coking technology and coke oven construction and ita influence on other branches of the economy.

95104496 Manufacture of coke tima, T. and Matsunaga, M. (Assigned to) Shinnippon Seitetsu KK, JAP. Pat. JP.O6,264,067, Sep. 1994. Describes the process of coke manufacture where the oven temperature during the feeding of coal is above the average ovtn temperature of coking cvcle It\ and less than the temoerature oft + 150”. the oven temoerature is then d&eased by >ZO”/h to a iemperature in the r&ge of 900”- &sOq, and increased and returned to the oven temperature of coal feeding at the end of coking.

95/04497 Manufacture of hlgh-quallty hlgh-strength coke Amamoto, K. and Asada. S. (Assigned to) Kansai Coke & Chemicals, JAP. Pat. JP.O6,248,273, Sep. 1994. A w Ei

recess for the manufacture of high-quality wke having high strength by ng raw coal in a coking chamber and inJecting pressurized non-oxidix-

ing gas from the openings along the gas pipe inserted in the centre part of the raw coal layer.

95/0#99 Manufacture of hlahlv reactive coke Haiaguchi, H. and Kumagai, A &.&cd to) Shinnitretsu Kagaku, JAP. Pat. JP.06,313,171, Nov. 1994.

95/04499 A new wet coal chargln Dawes Lane coke ovens -A total B

taclllty at Brltlsh Steel qual ty project

Newbould, J. G. Proc. Ironmaking Con& 1994, 53, 145-150. The pa r describes the installation of a new wet coal feeding system, state-o fpe -the-art screw discharge cars, and total refurbishment of battery top, without loss of output, quality or battery emissions performance. The impact on door emissions during the project was minimal.

326 Fuel and Energy Abstracts September 1995