12. Ash Behaviors and Deposition Characteristic in Coal Gasification Process

• Kawai Takayuki

  Department of Ecological Engineering, Toyohashi University of Technology

• Miyauchi Yoshiki

  Department of Ecological Engineering, Toyohashi University of Technology

• Naruse Ichiro

  Department of Ecological Engineering, Toyohashi University of Technology

Bibliographic Information

Other Title

• 12.石炭ガス化過程における灰の挙動と付着特性

Abstract

Recently, high-temperature and high-pressure coal gasification combined cycle systems have been under developed to realize more efficient and ecological coal utilization technologies. In the gasification process, however, slugging and fouling troubles sometimes occur in the section of furnace wall and heat exchanger, respectively, since the operating temperature exceeds the ash melting temperature. Therefore, it is necessary to predict ash behaviors in the gasification process, based on the properties of mineral particles in the raw coals. Objective of this study is to elucidate the formation behaviors of ash particles and deposition characteristic during coal gasification. The experiments were conducted, using a horizontal high-temperature pulverized coal reactor. Ash particles in the reacting particles sampled during reaction were analyzed, using a Computer Controlled Scanning Electron Microscope (CCSEM).

Journal

• Proceedings of Conference on Coal Science

  Proceedings of Conference on Coal Science 42 (0), 27-28, 2005

  The Japan Institute of Energy

Details

• CRID: 1390282680745956352
• NII Article ID: 110006857809
• DOI: 10.20550/jiesekitanronbun.42.0_27
• ISSN: 24238309
• ISSN: 24238295
• Text Lang: ja
• Data Source:
  • JaLC
  • CiNii Articles
• Abstract License Flag: Disallowed