Journal of the Japan Institute of Energy
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 1882-6121
PRINT ISSN: 0916-8753

Journal of the Japan Institute of Energy Vol. 76 (1997), No. 1

  • Manufacture Test of Heat Insulator from PFBC' Coal Ash and Effects of Test Conditions on Its Characteristics

    pp. 29-36

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3775/jie.76.29

    To produce a heat insulator by curing with steam at low temperature, a new technology of using coal ash discharged from pressurized fluidized bed combustor (PFBC) was developed. Effects of various curing conditions on manufacturing of heat insulator were investigated. Results are summarized as: (1) the produced heat insulator mainly consists of calcium silicate hydrates, calcium aluminate sulfate and hemihydrate gypsum, (2) high quality heat insulators were able to manufactured under conditions of temperature 353 K, humidity 80%, curing time 24 hr, (3) the new insulator produced here shows better qualities than that of some commercial brick.
  • Study on a Separation Technique for Plastic-metal Wastes by the Molten Salt (II)

    pp. 37-46

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3775/jie.76.37

    Previously, we reported the development of a new separation technique of plastics from compound wastes by using a high temperature molten salt as a separation medium, in which the basic characteristics of separation phenomena were investigated. In this report, a simple theoretical model was developed for predicting of the separation phenomena. The model includes both heating and deformation processes of the plastic. The heating process was analyzed as the boundary value problem of heat conduction involving with heat transfer, The flow of the fluidized plastic was described as a high viscosity flow driven by the buoyancy force. The deformation on the surface of the plastic was predicted theoretically. The deformation pattern was found to be in qualitatively agreement with the experimental data. Separation time was measured experimentally against the various thickness of plastic. Theoretical separation time was derived from a combination of the heating time and the deformation time, and was described as a function of plastic thickness. The theoretical model was found to agree well with the experimental result.
  • Rate Analysis of Catalytic Pyrolysis of Coal in a Powder-Particle Fluidized Bed

    pp. 47-54

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3775/jie.76.47

    Experimental results of catalytic Pyrolysis of Taiheiyo coal in a powder-particle fluidized bed (PPFB) under hydrogen atmosphere were analyzed. The catalytic pyrolysis in PPFB was considered to occur in two steps, that is, the primary pyrolysis and the catalytic decomposition of the pyrolysis product. The reaction model for the catalytic decomposition was proposed. The experimental results of hydropyrolysis of coal with CoMo-B catalyst in PPFB were analyzed by using the reaction model under the assumption of a plug flow for gas and a perfect mixing for catalyst particles in the bed. Activation energy and frequency factor of each reaction rate constant were obtained from the experimental data. Calculated yields of light aromatic hydrocarbons and gaseous products approximately agreed with experimental ones. The calculation result can be used to predict yields of tar, light aromatic hydrocarbons and gaseous products for designing this type of catalytic pyrolysis reactor.

Article Access Ranking

01 Oct. (Last 30 Days)

  1. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  2. Recent Progress of Instrumentation Technology for Process Automation in Steel Industry Tetsu-to-Hagané Vol.106(2020), No.9
  3. Accuracy Improvement of the XRD-Rietveld Method for the Quantification of Crystalline Phases in Iron Sintered Ores through the Correction of Micro-absorption Effects ISIJ International Advance Publication
  4. Melting Erosion Failure Mechanism of Tuyere in Blast Furnace ISIJ International Advance Publication
  5. Review on the High-Temperature Thermophysical Properties of Continuous Casting Mold Fluxes for Highly Alloyed Steels Tetsu-to-Hagané Advance Publication
  6. Mechanism of Corrosion Protection at Cut Edge of Zn-11%Al-3%Mg-0.2%Si Coated Steel Sheets ISIJ International Vol.60(2020), No.9
  7. Potential Influences of Impurities on Properties of Recycled Carbon Steel ISIJ International Advance Publication
  8. Evaluation and Prediction of Blast Furnace Status Based on Big Data Platform of Ironmaking and Data Mining ISIJ International Advance Publication
  9. Permeability Coefficient of Oxygen in Molten Slags and Its Mechanisms ISIJ International Vol.60(2020), No.9
  10. Composition Changes of Inclusions by Reaction with Slag and Refractory: A Review ISIJ International Vol.60(2020), No.9

Search Phrase Ranking

01 Oct. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. ultrasonic testing bar small diameter
  5. ultrasonic inclusion
  6. isij international
  7. jeong-sik kim
  8. 柳修介
  9. continuous casting of copper alloys
  10. tetsu