03 Method and apparatus for manufacture of hlgh95lO5809 concentration coal-water pastes for pumping Ito, H. ef al., (Assigned lo) Kawasaki Heavy Ind. Ltd., JAP. Pat JP.O7,18,273, Jan. 1995. Method for In situ characterization of a medium of 95/05810 dispersed matter In a continuous phase, such as a coal slurry, using a fluorescent dye Kaufman, E. N. (Assigned to) United Stares Dept. of Energy, US Pat US.S,396,075, Mar. 1995. Method of coal liquefaction 95105811 Suzuki, N. et al., (Assigned to) NKK Corp., EUR. Pat. EP.638,627, Feb. 1995. Nitrogen compound distrlbutlon and fuel Incompat95105812 lbilitv reactions in a tar sand derived middle c(istillate fuel Hugh& J. M. et al., Fuel Sci. Technol. Int., 1995, 13, (4), 413-429. The organo-nitrogen compounds in a high-paraffin high-nitrogen, lowsulphur jet fuel derived from Athabasca tar sands were isolated by mild acid extraction followed by silica-gel adsorption. Three extracts were derived from this fuel: a basic nitrogen compound extract in CH Cl ; a non-basic nitrogen compound extract NBNC, in McOH; and an kBkC extract in CH,Cl,. Nltro en evolution from coal, peat and wood dur95105813 ing gasification: LsMature review Leppaclahti, J. and Koljonen, T. Fuel Process. Technol., 1995, 43, (l), 1-45. During gasification, fuel nitrogen is liberated mainly as ammonia, hydrogcn cyanide, molecular nitrogen, or as heavy aromatic compounds, while a smaller part of the nitrogen is retained in solid char. Independent of the fuel gasified, more N&-is formed than other nitrogenous-compounds in most gasifiers. The NH, content in the product gas seems to be dependent mainly on the nitrogen content of the fuel. The measured NH, conccntrations have varied between 150 and 10,000 ppm, the lowest being for wood, which usually has a nitrogen content less than l%, and the highest for peat and coal, which have nitrogen content varying from 0.5 to 3.0%. A novel ap roach for the assessment of the rate 95105814 limiting step In the Flsc Rer-Tropach slurry process Inga, J. R. and Morsi, B. I. Prepr. Pap.-Am. Chem. Sot., Dir. Fuel Chem., 1995, 40, (l), 187-191. The rate-limiting step in the Fischer-Tropsch slurry process was assessed using a simple computer model that takes into account the water gas shift reaction in the calculation of the importance of gas-liquid mass transfer and makes use of the ‘Singular Kinetic Path’ concept proposed by R. Espinoza (1993). Physical and thermal pro ertles and leachln char95105815 acteristics of a hydroretorted beneflc Pated eastern US 01B shale In dlfferant proc~salng stages Mensinger, M. C. and Budiman, J. S. Fuel, Sep. 1995,74, (9), 1291-1296. In connection with storage in embankments, tests were conducted to determine the physical and thermal properties and leaching characteristics of samples of beneficiated and thermally processed Alabama shale, including permeability, compressibility, compactibility, consolidatio?, shear stress, cohesion, thermal conductivity, and liquid and plastic lirmts. Tests were conducted on samples of unprocessed, hydroretorted, hydroretorted and combusted, and hydroretorted and agglomerated bencficiated shale. The results show that the physical properties of unprocessed and thermally processed beneficiated shale differ considerably, but that none of the thermally processed shale samples exhibits toxicity as assessed by the US EPA toxicity characteristic leaching procedure (TCLP). Combustion and agglomeration reduce the amounts of metals leached during TCLP tests. Preparatlon and modlflcatlon 95/05818 cl0 catalysts for coal llquefactlon Mochida, i. er al., Prepr. Pap.-Am. Chem. Sot., 40, (2), 329-334. Discusses coal liquefaction recoverable particle gravimetric separation methods were used in the
of recgverable partl-
Gaseous fuels (sources, properties, recovery, treatment)
95lO8819 Reduction behavlour and catalytic propertlss of cobalt contalnlna ZSM-5 zaolltes Jong, S. J. and Ch&i S. Appl. Caral. A, 1995, 126, (l), 51-66. The reduction behaviour and catalvtic DroDcrties of Co-containing ZSMJ zeolites prepared by various methdds were compaked and charact&ed by temperature-programmed X-ray diffraction, and IR reduction, spectroscopy. 95105820 Rheologlcal behaviour of coal-water mixtures. 2. Effects of surfactants and temperature Roh, N. S. et al., Fuel, Sep. 1995, 74, (9), 1313-1318. The rhcological charactcrisics of coal-water mixture (CWM) were invcstigated, including the effects of surfactant type and concentration, presence of added electrolytes and slurry temperature. The slurryability of coal could be enhanced considerably by the addition of surfactants and some electrolytes and the slurries almost exhibited shear-thinning behaviour, i.e.. were pseudoplastic with n < 1, which is a desirable rhcological charactcristic for CWM. The slurry viscosity increased as the temperature, the amount of anionic surfactant and electrolyte, and the HLB value of non-ionic surfactant decreased. The addition of nonylphenol non-ionic surfactants also enhanced the resistance of CWM to sedimentation, and this effect was more pronounced, the greater the number of ethylene oxide groups in the surfactant molecule. 95105821 Role of CO, in the Initiation of chain growth during the Fischer-Tropsch synthesis Davis, B. H. et al., Prepr. Pap.-Am. Chem. Sot., Div. Fiel Chem., 1995, 40, (l), 177-181. The paper presents data to show that alcohols produce hydrocarbons during the Fischer-Tropsch Synthesis (FTS) which is not consistent with a simple initiation mechanism. CO, is oroduced dircctlv from the alcohol and not bv the reverse of the carbonylation reaction. CO;also initiates chain growth ih the FTS; the initiation intermediate is presumed to be the same intcrmcdiate as in the water-gas-shift reaction. The role of recycle oil in direct coal liquefaction 95105822 process development FK!;~~ P. Prepr. Pap.-Am. Chem. Sot., Div. Fuel Chem., 1995, 40, (2), Discusses recycle oil characterization and its influence on the industrial development of coal liquefaction technology. 95105823 The role of thermal hydrogen-transfer processes In catalytic coal liquefaction McMillcn, D. F. and Malhotra, R. Prepr. Pap.-Am. Chem. Sot., Div. Fuel Chem., 1995, 40, (2), 221-227. The paper discusses the process development results, thermal and catalytic reactions in coal liquefaction from model compound studies. Solid fuel-water slurries and their preparation 95105824 Sawada, M. et al., (Assigned to) Ube Industries, JAP. Pat. JP.O7,62,364, Mar. 1995. 95105825 XPS study of Iron catalysts for Fischer-Tropsch avnthesls -a------Zhao-Tie, L. et al., Fuel Sci. Technol. Inr., 1995, 13, (5), 559-567. The surface characteristics of Fe-Cu-K catalvsts for the Fischer-Tropsch synthesis were determined by XPS. The surf&e composition of catalysts poisoned by carbonyl sulphide (COS) was investigated by XPS and compared with the composition of unpoisoned catalyst. QSlO5828 Zlrconla promotlon of Fischer-Tropsch cobalt catalysts: Behavlor In flxed-bed and slurry bubble column reactors Oukaci, R. et al., Prepr. Pap.-Am. Chem. Sot., Div. Fuel Chem., 1995, 40, (l), 182-186. A series of cobalt-based Fischer-Tropsch catalysts supported on alumina and silica were prepared with different loadings of Zr and different sequences of Co and Zr. The catalysts were evaluated in terms of activity and selecitivity both in fixed-bed and slurry bubble column reactors.
Div. Fuel Chem., 1995, catalyst. Magnetic and study.
Pretreatment effect studies with a preclbitated iron 95105817 Fischer-Tropsch catalyst Bukur, D. B. et al., Appl. Catal. A, 1995, 126, (l), 85-113. 85/05818 Proaress In the develooment and oroductlon of nanoscale Iron-containing catalysts ’ Matson. D. W. et al.. Preor. Pau.-Am. Chem. Sot., Div. Fuel Chem., 1995, 40, (2), 346-350: Describes the development of ultrafine iron-based catalysts for coal liquefaction.
03 GASEOUS FUELS Sources, Properties, Recovery, Treatment 95105027 Coalbed methane in Alberta $_y;s, T. L. and Schuldhaus, K. F. J. Can. Pet Technol., 1995, 34, (3), The paper discusses coalbed methane (CBM) in Alberta, including the potential resources base, elaboration on the application of natural gas regulations to CBM, activity to date, and some of the main regulatory issues and initiatives that have arisen. It is shown that there is a need to collect Alberta specific CBM data before decisions can be made on the necessity of regulatory change specifically for CBM development.
Fuel and Energy Abstracts November 1995 415