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. 73 (1994), No. 4

  • Graphic Representation of the 13C Chemical Shifts and Substructures of Hydrocarbons and Oxygen-containing Compounds for the Analysis of Chemical Structures of Coals and the Related Material

    pp. 267-278

    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.73.267

    The 13C chemical shift ranges are representated graphically for the carbon types and the α -circumstances in hydrocarbons and oxygen-containing compounds. The main purpose of the charts is simple and easy utilization of the correlations between 13C shift range and the substructure for the structural analysis of the natural products such as coals, soils, lignins and their reaction products.
    The 13C NMR spectra were observed for Ishikari peat, the extracted residue, the extracted oil, a lignin and a cellulose. In the solid state, CPMAS and the dipolar -ing spectra were observed, and the chemical structures of Ishikari peat were discussed by using the charts. The most different points in structure of Ishikari peat from woods are the inclusion of the alkyl chain structures.
  • Evaluation of Coking Properties of Coals by Quantification of Pyrolytic Products

    pp. 279-289

    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.73.279

    In order to evaluate coal for metallugical coke, thermogravimetric analysis, quantification of gaseous products during pyrolysis, caking and coking properties of different rank of coals including air oxidized were investigated. Following results were obtained.
    (1) Degree of oxidation of coals can be detected by monitoring the change of CO, CO2 and CH4 in pyrolytic gases.
    (2) The higher was the CH4 concentration in the gases, the higher was the resolidified temperature with Gieseler plastometry become. The developement of the optical anisotropy in coke texture was implicated with CH4 evolution.
    (3) Coals with the large extent of thermal weight loss and the higher ratio of CH4 in pyrolytic gases showed generally excellent plasticity, although the coal gave cokes with higher porosity.
    Coking properties of coals were discussed from the view of the structural aspect. The quantification of thermal weight loss and the concentration of CH4 in pyrolytic gases were introduced as the criteria of coking characteristics.

Article Access Ranking

16 Jan. (Last 30 Days)

  1. A Review of the Chemistry, Structure and Formation Conditions of Silico-Ferrite of Calcium and Aluminum (‘SFCA’) Phases ISIJ International Vol.58(2018), No.12
  2. Improving Blast Furnace Raceway Blockage Detection. Part 1: Classification of Blockage Events and Processing Framework ISIJ International Advance Publication
  3. Phase Transformation Behavior of Oxide Scale on Plain Carbon Steel Containing 0.4 wt.% Cr during Continuous Cooling ISIJ International Vol.58(2018), No.12
  4. Hydrogen Embrittlement Susceptibility Evaluation of Tempered Martensitic Steels Showing Different Fracture Surface Morphologies Tetsu-to-Hagané Vol.105(2019), No.1
  5. Improvement of Sinter Productivity by Control of Magnetite Ore Segregation in Sintering Bed ISIJ International Vol.58(2018), No.12
  6. Gasification and Migration of Phosphorus from High-phosphorus Iron Ore during Carbothermal Reduction ISIJ International Vol.58(2018), No.12
  7. Effect of TiO2 and MnO on Viscosity of Blast Furnace Slag and Thermodynamic Analysis ISIJ International Vol.58(2018), No.12
  8. Effect of Coke Size on Reducing Agent Ratio (RAR) in Blast Furnace ISIJ International Vol.58(2018), No.12
  9. High Temperature Thermal Diffusivity Measurement for FeO Scale by Electrical-Optical Hybrid Pulse-Heating Method ISIJ International Vol.58(2018), No.12
  10. Improving Blast Furnace Raceway Blockage Detection. Part 3: Visual Detection Based on Tuyere Camera Images ISIJ International Advance Publication

Search Phrase Ranking

16 Jan. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. 鉄と鋼
  5. continous annealing
  6. laser welder
  7. titanium
  8. a
  9. activity feo
  10. argon steel