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03569 Production of minimal natural resource concretes utilizing fluidized bed combustion by-products and conventional power plant fly ash
04
By-products
related to fuels
A method to obtain a compact representation of 95103563 process performances from a numerical simulator: example of pressure swing adsorption for pure hydrogen production Chlendi, M. et al., Gas Separorian & Purification, 1995, 9, (2), 125-135. The purpose of this work is to propose a method of global characterization of the behaviour of pressure-swing-adsorption (PSA) cycles based on statistical experiments design, the ‘experiments’ being actually numerical (simulation). The result of that procedure presented here is a set of polynomials describing the performance of the PSA cycles (purity, yield, productivity) as functions of operating or design variables (flow rates, pressures, composition, bed length, step durations). These polynomials represent the sensitivity of the process to fluctuations, perturbations or intentional changes of process variables, and can be used, within their range of validity, as a fast aid to opedtors, and as a tool for design and optimization. Parameters Influencing the oxygen and chloride 95103564 permeability of superplasticized normal portland cement and fly ash-normal portland cement mortar and concrete Lynsdale, C. J. and Cabrera, J. G. Am. Concr. Inst., SP, 1994, 148, 435-450. Discusses how work carried out for many years at Leeds University, Civil Engineering Materials Unit, has shown that the durability of conirete can be assessed effectively by measuring its permeability to gases, liquids, and ions. The paper presents the findings of a laboratory study of the properties of normal portland cement and fly ash-normal portland cement mortar and concrete mixtures. The study involves 28 mixtures, incorporating the use of five chemically different superplasticizers and three water-cementitious materials ratios. Phase transitions irt middle-distillate waxes: Effect 95103565 of a pour-point depressant additive Srivastava. S. P. et al., Fuel, Jun. 1995, 74, (6). 928-931. The phasetransition temperatires and energies ofpetroleum waxes derived from Bombay High middle distillate were determined. The effects of isoand cycloparaffins and aromatics, individually and collectively, on these parameters were investigated. The influence of a commercial pour-point depressant additive and its concentration on the same parameters were also stddied. The mechanism of pour-point depression is discussed in terms of changes in these parameters. Preflame oxidation characteristics of methanol 95103566 Aniolek, K. W. and Wilk, R. D. Energy & Fuels, May-Jun. 1995, 9, (3), 795-405. The low-temperature slow oxidation of methanol was examined experimentally in a constant volume stirred reactor. Initial temperatures range from approximately 650 to 700 K. Initial pressures of 700 Torr and below were examined and the equivalence ratio was varied between 0.5 and 1.5. Temperatures and pressure histories were obtained from methanol reacting in air and oxygen. Global indicators of reaction rates, reactivity, and autoignition tendency were derived from these data. The relationship among these indicators and the effects on these indicators of initial temperature. initial oressure. and fuel/oxidizer mixture ratio were examined. In geneial, it w& found’that the overall reaction rate increased with, increasing temperature, pressure, and equivalence ratio. ) Preparation of activated carbon from western 95103567 Canadian high rank coals Kovacik, G. et al., Fuel Process. Technol., 1995, 41, (2), 89-99. Partial steam gasification of Mt. Klappan anthracite and Cascade semianthracite with semicoke conversion >60%, produced activated carbons with surface areas >lOOO m’/g. The pore structures of the activated carbons were predominantly microporous and mesoporous. The proportions of macropores were on the order of 2%. Fuel gas produced during steam activaiion of semicokes contained predomin&ly’ combustible g&es, 515% co,. 95103568 Process and apparatus for detection of yarn defects for manufacture of carbon fibers Yamazaki, Y. and Abe, Y. (Assigned to) Shin’nippon Seitersu KK; Shinnittetsu Kagaku, JAP. Pat. JP.O6,308,053, Nov. 1994.
Production of minimal natural resource concretes 95103569 utilizing fluidlred bed combustion by-products gnd conventlonal power plant fly ash I Kilgour, C. L. et al., Proc. Inst. Briquet. Agglom. Bienn. Conf, 1994, 23, 127-138. The paper describes how artificial aggregates were produced from fluidized bed combustion (FBC) fly ash from the Iowa State University Power Plant, and a class C fly ash frdm the Lansing power plant in Iowa, using a rotary pan aggiomerator. Concretes were produced in which limestone aggregate was replaced by these agglomerates, sand was replaced by FBC spent bed material from the power plant and cement by Class C fly ash. It was found that agglomerated Lansing fly ash appeared to be suitable replacement for limestone aggregate. Control concretes and concretes in which the limestone aggregate was replaced by agglomerated Lansing fly ash had essentially the same compresssive strength.
260
Fuel and Energy Abstracts
July 1995
95103570 Production problems In the steam-stimulated shaley oil sands of the Cold Lake reservoir: Causes and possible solutions Chakrabarty, T. and Longo, J. M. J. Can. Per. Tech&., 1994, 33, (lo), 34-39. Presents laboratory and field data that support the hypothesis that the minerals in the clasts play a role in the bitumen production problems of the steam-stimulated shaley oil sands. Also describes the application of portable X-ray fluorescence and near-IR instruments for rapid, non-destructive identification of reactive minerals in cores, and of photoelectric absorption logs for identifying shaley oil sands with reactive minerals. Discusses the potential methods for formation damage remediation and prevention. Rapid detection and characterization of petroleum 95103571 products and residues by TLC: Part 1 Dhole, V. R. and Ghosal, G. K. J. Planar Chromatogr. Mod. TLC, 1994, 7, (6), 469-471. Describes a TLC method which has been developed for analysis of residues from the petroleum products (e.g. gasoline, kerosene, and diesel fuel) generally encountered as accelerants in fires and arson cases. Reaction of [60]fullerene with triethylamine 95103572 Pola, J. et al., Fullerene Science & Technol., 1995, 3, (3), 299-303. [60]Fullerene reacts with neat triethylamine via an electron transfer involving an intermediate C60-radical-anion, to give a salt-like product. This decomposes to [60]fullerene upon either heating, or treatment with ultrasound EI mass fragmentation of the product indicates an intramolecular abstraction of H from C,H, by the [60]fullerene moiety. Recovery of crude pyridine and phenol from coking 95103573 factory wastewater Xu, H. et al., Huadong Yejin Xueyuan Xuebao, 1994, 11, (1). 56-60. (In Chinese) The paper discusses the removal of phenol from coking wastewater by solvent extraction. The distributions of crude pyridine in light oil and ammonia liquor were determined and the enrichmint experiments of crude pyridine with the fractionation method was carried out. 95103574 Recycling and magnetization of incineration-fly ash for aeneral waste Koji’;la, A. and Yanagisawa, T. Shigen Kankyo Tuisaku, 1994, 30, (8), 711-717. (In Japanese) Reformation of fly ash 95103575 Takegawa, T. et al., (Assigned io) Mitsubishi Heavy Ind. Ltd., JAP. Pat. JP.O6,315,673, Nov. 1994. Describes the process for reformation of fly ash which comprised treatment of fly ash at 1600-1700” in high-temperature incinerators into molten ash, making the molten ash into granulated slag by rapidly cooling with water, and pulverization of the granulated slag. The process is used for reformation of fly ash exhausted from coal-fired boilers. Reforming of coal tar from low-temperature dry 95103576 distillation (Assigned to) Kawasaki Steel Co., JAP. Pat. Hanaoka, K. er al., JP.O6,287,566, Oct. 1994. Reforming of tar or pitch binders for formed coke 95103577 (Assigned to) Kawasaki Steel Co., JAP. Pat. Hanoaka, K. et al., JP.O6,330,050, Nov. 1994. Remarkable effect of fullerenes of IOW-Valent tita95103578 nium mediated organic reaction Talukdar, S. et al., Fullerene Science & Technol., 1995, i, (3). 327-332. The paper describes how the addition of catalytic amounts of fullerenes as co-oidlnating ligand to the low valent titanium reagent resulted in the remarkable increase in the yields of phenanthrenes from orthomethoxy aryl aldehydes/ketones via intramolecular C-C coupling. This is the first report on the use of fullerenes as a ligand in transition metal mediated organic synthesis. Rotary kiln for manufacturing of lightweight aggre95103579 gates for cement Narishima, R. er al., (Assigned to) Onoda Cement Co.Ltd., JAP. Pat. JP.O6,265,271, Sep. 1994. Separation of vanadlum In recovery of metal values 95103580 from bltumen-fuel ash Woolery, M. R. and Rigsby, L. (Assigned to) U.S. Vanadium Corp., EUR. Par. EP.616,039, Sep. 1994. Describes a process where the ash from a fuel emulsion based on natural bitumen is slurried with water at 20% solids and pH ~6.5, and the slurry is treated to oxidize any reduced vanadium followed by precipitation of polyvanadate for separation from the Ni and Mg values remaining in solution.
By-products
related to fuels
A method to obtain a compact representation of 95103563 process performances from a numerical simulator: example of pressure swing adsorption for pure hydrogen production Chlendi, M. et al., Gas Separorian & Purification, 1995, 9, (2), 125-135. The purpose of this work is to propose a method of global characterization of the behaviour of pressure-swing-adsorption (PSA) cycles based on statistical experiments design, the ‘experiments’ being actually numerical (simulation). The result of that procedure presented here is a set of polynomials describing the performance of the PSA cycles (purity, yield, productivity) as functions of operating or design variables (flow rates, pressures, composition, bed length, step durations). These polynomials represent the sensitivity of the process to fluctuations, perturbations or intentional changes of process variables, and can be used, within their range of validity, as a fast aid to opedtors, and as a tool for design and optimization. Parameters Influencing the oxygen and chloride 95103564 permeability of superplasticized normal portland cement and fly ash-normal portland cement mortar and concrete Lynsdale, C. J. and Cabrera, J. G. Am. Concr. Inst., SP, 1994, 148, 435-450. Discusses how work carried out for many years at Leeds University, Civil Engineering Materials Unit, has shown that the durability of conirete can be assessed effectively by measuring its permeability to gases, liquids, and ions. The paper presents the findings of a laboratory study of the properties of normal portland cement and fly ash-normal portland cement mortar and concrete mixtures. The study involves 28 mixtures, incorporating the use of five chemically different superplasticizers and three water-cementitious materials ratios. Phase transitions irt middle-distillate waxes: Effect 95103565 of a pour-point depressant additive Srivastava. S. P. et al., Fuel, Jun. 1995, 74, (6). 928-931. The phasetransition temperatires and energies ofpetroleum waxes derived from Bombay High middle distillate were determined. The effects of isoand cycloparaffins and aromatics, individually and collectively, on these parameters were investigated. The influence of a commercial pour-point depressant additive and its concentration on the same parameters were also stddied. The mechanism of pour-point depression is discussed in terms of changes in these parameters. Preflame oxidation characteristics of methanol 95103566 Aniolek, K. W. and Wilk, R. D. Energy & Fuels, May-Jun. 1995, 9, (3), 795-405. The low-temperature slow oxidation of methanol was examined experimentally in a constant volume stirred reactor. Initial temperatures range from approximately 650 to 700 K. Initial pressures of 700 Torr and below were examined and the equivalence ratio was varied between 0.5 and 1.5. Temperatures and pressure histories were obtained from methanol reacting in air and oxygen. Global indicators of reaction rates, reactivity, and autoignition tendency were derived from these data. The relationship among these indicators and the effects on these indicators of initial temperature. initial oressure. and fuel/oxidizer mixture ratio were examined. In geneial, it w& found’that the overall reaction rate increased with, increasing temperature, pressure, and equivalence ratio. ) Preparation of activated carbon from western 95103567 Canadian high rank coals Kovacik, G. et al., Fuel Process. Technol., 1995, 41, (2), 89-99. Partial steam gasification of Mt. Klappan anthracite and Cascade semianthracite with semicoke conversion >60%, produced activated carbons with surface areas >lOOO m’/g. The pore structures of the activated carbons were predominantly microporous and mesoporous. The proportions of macropores were on the order of 2%. Fuel gas produced during steam activaiion of semicokes contained predomin&ly’ combustible g&es, 515% co,. 95103568 Process and apparatus for detection of yarn defects for manufacture of carbon fibers Yamazaki, Y. and Abe, Y. (Assigned to) Shin’nippon Seitersu KK; Shinnittetsu Kagaku, JAP. Pat. JP.O6,308,053, Nov. 1994.
Production of minimal natural resource concretes 95103569 utilizing fluidlred bed combustion by-products gnd conventlonal power plant fly ash I Kilgour, C. L. et al., Proc. Inst. Briquet. Agglom. Bienn. Conf, 1994, 23, 127-138. The paper describes how artificial aggregates were produced from fluidized bed combustion (FBC) fly ash from the Iowa State University Power Plant, and a class C fly ash frdm the Lansing power plant in Iowa, using a rotary pan aggiomerator. Concretes were produced in which limestone aggregate was replaced by these agglomerates, sand was replaced by FBC spent bed material from the power plant and cement by Class C fly ash. It was found that agglomerated Lansing fly ash appeared to be suitable replacement for limestone aggregate. Control concretes and concretes in which the limestone aggregate was replaced by agglomerated Lansing fly ash had essentially the same compresssive strength.
260
Fuel and Energy Abstracts
July 1995
95103570 Production problems In the steam-stimulated shaley oil sands of the Cold Lake reservoir: Causes and possible solutions Chakrabarty, T. and Longo, J. M. J. Can. Per. Tech&., 1994, 33, (lo), 34-39. Presents laboratory and field data that support the hypothesis that the minerals in the clasts play a role in the bitumen production problems of the steam-stimulated shaley oil sands. Also describes the application of portable X-ray fluorescence and near-IR instruments for rapid, non-destructive identification of reactive minerals in cores, and of photoelectric absorption logs for identifying shaley oil sands with reactive minerals. Discusses the potential methods for formation damage remediation and prevention. Rapid detection and characterization of petroleum 95103571 products and residues by TLC: Part 1 Dhole, V. R. and Ghosal, G. K. J. Planar Chromatogr. Mod. TLC, 1994, 7, (6), 469-471. Describes a TLC method which has been developed for analysis of residues from the petroleum products (e.g. gasoline, kerosene, and diesel fuel) generally encountered as accelerants in fires and arson cases. Reaction of [60]fullerene with triethylamine 95103572 Pola, J. et al., Fullerene Science & Technol., 1995, 3, (3), 299-303. [60]Fullerene reacts with neat triethylamine via an electron transfer involving an intermediate C60-radical-anion, to give a salt-like product. This decomposes to [60]fullerene upon either heating, or treatment with ultrasound EI mass fragmentation of the product indicates an intramolecular abstraction of H from C,H, by the [60]fullerene moiety. Recovery of crude pyridine and phenol from coking 95103573 factory wastewater Xu, H. et al., Huadong Yejin Xueyuan Xuebao, 1994, 11, (1). 56-60. (In Chinese) The paper discusses the removal of phenol from coking wastewater by solvent extraction. The distributions of crude pyridine in light oil and ammonia liquor were determined and the enrichmint experiments of crude pyridine with the fractionation method was carried out. 95103574 Recycling and magnetization of incineration-fly ash for aeneral waste Koji’;la, A. and Yanagisawa, T. Shigen Kankyo Tuisaku, 1994, 30, (8), 711-717. (In Japanese) Reformation of fly ash 95103575 Takegawa, T. et al., (Assigned io) Mitsubishi Heavy Ind. Ltd., JAP. Pat. JP.O6,315,673, Nov. 1994. Describes the process for reformation of fly ash which comprised treatment of fly ash at 1600-1700” in high-temperature incinerators into molten ash, making the molten ash into granulated slag by rapidly cooling with water, and pulverization of the granulated slag. The process is used for reformation of fly ash exhausted from coal-fired boilers. Reforming of coal tar from low-temperature dry 95103576 distillation (Assigned to) Kawasaki Steel Co., JAP. Pat. Hanaoka, K. er al., JP.O6,287,566, Oct. 1994. Reforming of tar or pitch binders for formed coke 95103577 (Assigned to) Kawasaki Steel Co., JAP. Pat. Hanoaka, K. et al., JP.O6,330,050, Nov. 1994. Remarkable effect of fullerenes of IOW-Valent tita95103578 nium mediated organic reaction Talukdar, S. et al., Fullerene Science & Technol., 1995, i, (3). 327-332. The paper describes how the addition of catalytic amounts of fullerenes as co-oidlnating ligand to the low valent titanium reagent resulted in the remarkable increase in the yields of phenanthrenes from orthomethoxy aryl aldehydes/ketones via intramolecular C-C coupling. This is the first report on the use of fullerenes as a ligand in transition metal mediated organic synthesis. Rotary kiln for manufacturing of lightweight aggre95103579 gates for cement Narishima, R. er al., (Assigned to) Onoda Cement Co.Ltd., JAP. Pat. JP.O6,265,271, Sep. 1994. Separation of vanadlum In recovery of metal values 95103580 from bltumen-fuel ash Woolery, M. R. and Rigsby, L. (Assigned to) U.S. Vanadium Corp., EUR. Par. EP.616,039, Sep. 1994. Describes a process where the ash from a fuel emulsion based on natural bitumen is slurried with water at 20% solids and pH ~6.5, and the slurry is treated to oxidize any reduced vanadium followed by precipitation of polyvanadate for separation from the Ni and Mg values remaining in solution.