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. 92 (2013), No. 1

  • Dynamic Behavior of Calcium and Mercury in Carbon Reduction of Gypsum

    pp. 157-163

    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.92.157

    In a series of studies on regeneration and cleaning of gypsum produced from flue gas desulfurization, change in chemical form of calcium and release behavior of mercury during reduction of gypsum with solid carbon were investigated. Calcium sulfate dihydrate as a model compound for gypsum was mixed with solid carbon and heated to a terminal temperature of 1100 °C under a nitrogen stream. CaS was produced by the reduction of CaSO4 with carbon. CaO formed drastically above 900 °C via a reaction of CaSO4 and CaS. An optimum amount of solid carbon to CaSO4 was determined for the production of CaO. To remove mercury from FGD gypsum during the carbon reduction, release behavior of mercury from gypsum was investigated. Model compounds were prepared by addition of reagents of HgCl2, HgO and HgSO4 to calcium sulfate dihydrates. HgCl2 in gypsum was released as Hg via HgO during heating in a nitrogen stream. HgO and HgSO4 changed to elemental Hg and volatilized. Carbon addition accelerated the release of every mercury compounds to gas phase as elemental Hg from the matrix of gypsum.
    x

    Readers Who Read This Article Also Read

    1. Dependence of the Molecular Structural Parameters of Asphaltene on the Molecular Weight Journal of the Japan Institute of Energy Vol.93(2014), No.2
    2. Study on an HCCI Engine fueled by Biomass Gas (Effect of Inhomogeneity of Premixture) Journal of the Japan Institute of Energy Vol.93(2014), No.2
    3. Synthesis Gas Production via Non-catalytic and Catalytic Gasification of Lignin with High-moisture Content Journal of the Japan Institute of Energy Vol.93(2014), No.7
  • Employment Life Cycle Analysis of Geothermal Power Generation Using an Extended Input-Output Model

    pp. 164-173

    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.92.164

    Increasing attention has been paid to geothermal power generation in particularly after The Great East Japan Earthquake. However, up till now, socio-economic impacts of geothermal power generation have not been thoroughly analyzed in Japan. The objective of the present study is to analyze employment created over the entire life cycle of geothermal power generation (i.e. resource survey, equipment production, plant construction, operation and maintenance), and clarify the characteristics compared to wind and solar photovoltaic power generation. An extended input-output table, which was constructed by disaggregating the existing sectors of the 2005 Input-Output Table for Japan, was developed and used for the analysis. Employment created over the life cycle of geothermal power generation was estimated to be 0.81 person-year per GWh. Employment at the operation and maintenance stage accounted for 65% of the total employment. That is, geothermal power generation can constantly produce employment over the life cycle, which is a different characteristic from wind and solar photovoltaic power generation. Other interesting characteristic is that more employment is produced in service industry sectors such as Repair of machine, Wholesale trade, Other business services than in manufacturing and construction industry sectors.
    x

    Readers Who Read This Article Also Read

    1. Dependence of the Molecular Structural Parameters of Asphaltene on the Molecular Weight Journal of the Japan Institute of Energy Vol.93(2014), No.2
    2. Study on an HCCI Engine fueled by Biomass Gas (Effect of Inhomogeneity of Premixture) Journal of the Japan Institute of Energy Vol.93(2014), No.2
    3. Synthesis Gas Production via Non-catalytic and Catalytic Gasification of Lignin with High-moisture Content Journal of the Japan Institute of Energy Vol.93(2014), No.7

Article Access Ranking

30 Jan. (Last 30 Days)

  1. Automatic Ultrasonic Testing of Non-metallic Inclusions Detectable with Size of Several Tens of Micrometers Using a Double Probe Technique along the Longitudinal Axis of a Small-diameter Bar ISIJ International Vol.61(2021), No.1
  2. Effect of microstructure on mechanical properties of quenching & partitioning steel ISIJ International Advance Publication
  3. Preface to the Special Issue on “Advanced Carbon Utilization Technologies and Processes for Sustainably Prosperous Society” ISIJ International Vol.62(2022), No.12
  4. Role and Potential of Aluminium and Its Alloys for a Zero-Carbon Society MATERIALS TRANSACTIONS Vol.64(2023), No.2
  5. A novel way refining the partially reverted globular austenite in reversion from martensite ISIJ International Advance Publication
  6. Soft Sensors and Diagnostic Models Using Real Time Data of Blast Furnaces at Tata Steel ISIJ International Vol.63(2023), No.1
  7. Interaction Coefficients of Cu and Sn with Mn in Molten Iron at 1873 K ISIJ International Vol.62(2022), No.12
  8. Iron ore granulation for sinter production: Developments, progress, and challenges ISIJ International Advance Publication
  9. Separation of Phosphorus from Phosphorus-concentrated Steelmaking Slag Tetsu-to-Hagané Vol.109(2023), No.1
  10. Application of Variable Gauge Rolling Technology for Plate to Reduce the Head Impact ISIJ International Advance Publication

Search Phrase Ranking

30 Jan. (Last 30 Days)

  1. blast furnace
  2. aaa
  3. process
  4. aaaa
  5. tetsu
  6. a
  7. aa
  8. ...
  9. experimental study on
  10. glass isij