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. 88 (2009), No. 7

  • Development of Optimization Model for Budget Distribution to Countermeasures against Livestock Manure Management (Study on Reasonable Budget Planning for Effective Utilization of Livestock Manure)

    pp. 577-585

    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.88.577

    In this research, the model for budget allocation to countermeasures against livestock manure oversupply problem was developed to contribute to the establishment of reasonable policy decision-making. The model was based on the multi-criteria analysis, which was often applied to the evaluation of public works projects. The developed model was applied to Maebashi city, Gunma Prefecture as a case study. As a result, the most effective countermeasure was the combination of "Feed Production" and "Methane Fermentation" to improve the environmental & social benefits, which had high priority for residents in Maebashi city. And "Livestock Reduction" was also an effective countermeasure in case that there was leeway in the budget. It seemed to be difficult to execute "Livestock Reduction" In Japan. However, the expected benefits were quite large especially in water pollution, global warming and acidification if that countermeasure could be executed. Therefore, a promotion of consensus building between government and residents through environmental education was expected.
  • Estimation of Carbon Aromaticity for Asphaltenes by Elemental Analysis and Proton NMR

    pp. 586-591

    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.88.586

    The structure of asphaltene is an important factor for investigating the reactivity of heavy hydrocarbons. For the evaluation of asphaltene, elemental analysis and NMR analysis are commonly applied. However, such analyses are sometimes limited due to too small sample size. Especially, 13C-NMR analysis for the determination of carbon aromaticity (fa) requires about 100mg of asphaltene while elemental analysis and 1H-NMR analysis requires only 10mg or less. In addition, 13C-NMR analysis takes quite a long time for the measurement. It is well known that H/C atomic ratio has a strong relationship with fa, but it has relatively weak relationship with molecular structure. Therefore, we studied a statistical estimation method for fa of hepane-insolubles (asphaltene) from the results of elemental analysis and 1H-NMR analysis using 45 worldwide vacuum resides (VR). As a result, fa was estimated within a error of 0.04 using H/C, N/C, S/C and O/C atomic ratios obtained by an elemental analysis and hydrogen distribution obtained by 1H-NMR. The difference between observed number of aromatic rings per unit structure and estimated ones is within one. Those results are quite effective because only 20-30 mg of samples are necessary to obtain fa, and the data set for the average molecular structure analysis can be obtained from very small sample size obtained by a preparative GPC, for example.

Article Access Ranking

22 Mar. (Last 30 Days)

  1. Dependence of Carbon Concentration and Alloying Elements on the Stability of Iron Carbides ISIJ International Advance Publication
  2. Comprehensive Optimization Control Technology of Rolling Energy and Oil Consumption in Double Cold Rolling ISIJ International Advance Publication
  3. Experiments on Removal of Hydrophilic Fine Particles in Bubbly Flow ISIJ International Vol.59(2019), No.2
  4. Effects of Impurities and Processing Conditions in Al–1%Mn Alloys on the Formation of Thermally Stabilized Substructures MATERIALS TRANSACTIONS Vol.59(2018), No.11
  5. Temperature Field Distribution of a Dissected Blast Furnace ISIJ International Advance Publication
  6. Coating Film Profiles Generated by Fluctuating Location of the Wiping Pressure and Shear Stress ISIJ International Vol.59(2019), No.2
  7. Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works ISIJ International Vol.56(2016), No.10
  8. Effect of EAF Slag Temperature and Composition on its Electrical Conductivity ISIJ International Vol.59(2019), No.2
  9. Fundamentals of Silico-Ferrite of Calcium and Aluminium (SFCA) Iron Ore Sinter Bonding Phase Formation: Effects of Basicity and Magnesium on Crystallisation during Cooling ISIJ International Vol.59(2019), No.2
  10. Effect of Nut Coke Addition on Physicochemical Behaviour of Pellet Bed in Ironmaking Blast Furnace ISIJ International Advance Publication

Search Phrase Ranking

22 Mar. (Last 30 Days)

  1. blast furnace
  2. blast furnace productivity
  3. blast furnace permeability
  4. galvanizing
  5. tuyere abrasion
  6. 鉄と鋼
  7. tuyere erosion
  8. isij
  9. lme
  10. tuyere failure