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. 82 (2003), No. 12

  • Biomass Gasification in Supercritical Water with Partial Oxidation

    pp. 919-925

    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.82.919

    Partial oxidation was applied to enhance the gasification efficiency of the supercritical water gasification of biomass. Hydrogen peroxide was employed as oxygen source and effect of partial oxidation on supercritical water gasification of 0.6M glucose, a model compound of biomass, and cabbage slurry was experimentally investigated using a bench-scale continuous reactor. For gasification at 873K, gasification efficiency close to unity was obtained, but at a lower temperature, the value decreased. The effect of partial oxidation was thus investigated at lower temperatures. Partial oxidation was effective in improving gasification efficiency for both glucose solution and cabbage slurry. The improvement of gasification efficiency was accompanied with higher yield of both hydrogen and carbon monoxide. The effect is clear at higher temperature. Proper amount of oxidant addition needs to be decided.
  • Conversion of Acetone to Aromatic Chemicals with HZSM-5

    pp. 926-932

    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.82.926

    Monoaromatic compounds are important chemicals as raw material for many petrochemical industries. Conventionally, these compounds are obtained from fossil resources by petroleum refining processes. In order to reduce the dependency on this resource, a new route with the utilization of biomass as starting material for the production aromatic chemicals is considered to establish a sustainable system of chemical industry. The route is that acetone could be produced selectively by catalytic reaction from biomass-derived oil. From this point, therefore, this study is to explore a catalytic conversion of acetone toward aromatic chemicals with HZSM-5. The reaction is carried out by continuous flow reactor at an atmospheric pressure to examine the activity and selectivity of HZSM-5. Some parameters such as temperature, space velocity, effect of water have been investigated. The results show that HZSM-5 exhibited a high active and a shape-selective catalyst for the formation of monoaromatic chemicals. The favourable condition for acetone aromatization is found i.e. at 673K with space velocity of 4h-1, the acetone conversion is close to 100% and monoaromatic selectivity is approximately 71%. The low selectivity of carbon oxides (less than 5%) was obtained, and it could be contributed significantly for this catalytic reaction on realization toward sustainable development of chemical industry in the future. There is no effect of water existence in the acetone feed on the aromatization reaction process, making the process will be simplified.

Article Access Ranking

16 Oct. (Last 30 Days)

  1. Preface to the Special Topics on “Cutting-edge Technologies and Scientific Researches of Zinc and Zinc Alloy Coated Steel Sheets” ISIJ International Vol.58(2018), No.9
  2. Mechanical Property of Ultrafine Elongated Grain Structure Steel Processed by Warm Tempforming and Its Application to Ultra-High-Strength Bolt Tetsu-to-Hagané Advance Publication
  3. Improvement of Wettability between Steel and Liquid Zn–Al Alloy by Forced Wetting ISIJ International Vol.58(2018), No.9
  4. Automotive Corrosion and Accelerated Corrosion Tests for Zinc Coated Steels ISIJ International Vol.58(2018), No.9
  5. Effect of Annealing Temperature on the Selective Oxidation and Reactive Wetting of a 0.1C-6Mn-2Si Advanced High Strength Steel During Continuous Galvanizing Heat Treatments ISIJ International Vol.58(2018), No.9
  6. Effect of Si/Mn Ratio on Galvannealing Behavior of Si-added Steel ISIJ International Vol.58(2018), No.9
  7. Crystal Structures and Mechanical Properties of Fe–Zn Intermetallic Compounds Formed in the Coating Layer of Galvannealed Steels ISIJ International Vol.58(2018), No.9
  8. Micro-Vickers Hardness of Intermetallic Compounds in the Zn-rich Portion of Zn–Fe Binary System ISIJ International Vol.58(2018), No.9
  9. Influence of Annealing Temperature and Dew Point on Kinetics of Mn External Oxidation ISIJ International Vol.58(2018), No.9
  10. Fracture Toughness of the Fe–Zn Intermetallic Compounds Measured by Bend Testing of Chevron-Notched Single-Crystal Microbeams ISIJ International Vol.58(2018), No.9

Search Phrase Ranking

16 Oct. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. isij international
  5. 半田恒久
  6. isij
  7. local formability high strength steel
  8. carbon monoxide reduction and accompanying swelling of lron oxide compacts
  9. castrip process
  10. convertor scrap