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1997 Fiscal Year Final Research Report Summary

Development of Draft Tube Spouted Bed Coal Gasifier with Circulating Ceramic Particles as Thermal Medium for Hydrogen-rich Gases Production

Research Project

Project/Area Number 07555241
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section展開研究
Research Field 化学工学一般
Research InstitutionKAGOSHIMA UNIVERSITY

Principal Investigator

HATAKE Yasuo  Kagoshima Univ., Fac.of Engineering, Professor, 工学部, 教授 (00038051)

Co-Investigator(Kenkyū-buntansha) KOGA Kazunori  Kyocera Co., Ltd., Head of R & D Center, 総合研究所, 所長
IWANAGA Kazuhiro  Nisso Engineering Co., Ltd., Chief Researcher, 主任研究員
IJICHI Kazuya  Kagoshima Univ., Fac.of Eng., Associate Professor, 工学部, 助教授 (60041555)
YOSHIZAWA Hidekazu  Kagoshima Univ., Fac.of Eng., Associate Professor, 工学部, 助教授 (20244262)
UEMURA Yoshimitsu  Kagosima Univ., Fac.of Eng., Associate Professor, 工学部, 助教授 (60160222)
Project Period (FY) 1995 – 1997
KeywordsCoal Gasification / Scale-up / Ceramic Particles / Hydrogen Production / Thermal medium / Converging Nozzle
Research Abstract

A spouted bed draft tube type reactor with circulating ceramic particles was proposed for the coal gasifier with which 50% or more hydrogen content gases were efficiently produced at comparatively low temperatures and under atmospheric pressure. At first, 1 kg-coal/h feed for the coal gasification process was successfully demonstrated using a reactor constructed in 1994. This time, to carry out a scale-up experiment from 1 kg-coal/h to 2 kg-coal/h and to achieve the significant improvements of reactor performance by equipping with measurement devices, a new type reactor was designed and constructed.
Experimental operations of the reactor informed us the conclusive functional disorder of L-valve, which was expected to stop the bypassing gas flow from the nozzle part to the annulus part. This time, cold model experiments were carried out using the new reactor with ceramic particles as circulating medium. The effects of operating factors such as bypassing flow and tube clearance on the circulating velocity of ceramic particles were investigated to obtain the fundamental information on the bypassing flow. In the cold model experiments, the converging nozzle was introduced to significantly increase the circulating rate.

  • Research Products

    (6 results)

All Other

All Publications (6 results)

  • [Publications] 伊地知 和也: "低温・常圧での石炭ガス化技術" 燃料及燃焼. 62. 653-659 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 三原 久正: "ドラフトチューブ付噴流層による石炭接触ガス化装置の開発" 鹿児島大学工学部研究報告. 32. 71-75 (1995)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] 幡手 泰雄: "ドラフトチューブ付噴流層ガス化装置による石炭ガス化" 化学工学論文集. 22巻5号. 1180-1184 (1996)

    • Description
      「研究成果報告書概要(和文)」より
  • [Publications] K.Ijichi, Y.Hatate and H.Mihara: ""Coal Gasification Technology under Low Temperatures and Atmospheric Pressure"" Fuel and Combustion Engineering. 62(9). 653-659 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] H.Mihara, T.Yoshimi, K.Ijichi, Y.Uemura, Y.Ohzuno, K.Hagihara and Y.Hatate: ""Development of a Draft Tube Spouted Bed Catalytic Coal Gasifier"" The Research Reports of the Faculty of Engineering, Kagoshima University. 37. 71-75 (1995)

    • Description
      「研究成果報告書概要(欧文)」より
  • [Publications] Y.Hatate, H.Mihara, K.Ijichi, T.Yoshimi, S.Arimizu, Y.Uemura and D.F.King: ""Catalytic Coal Gasification Using a Draft Tube spouted Bed Gasifier"" KAGAKU KOGAKU RONBUNSHU. 22(5). 1180-1184 (1996)

    • Description
      「研究成果報告書概要(欧文)」より

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Published: 1999-03-16  

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