Environmental Performance of Oxygen-Blown Entrained-Bed Coal Gasification Pilot Plant.

• Ueda Fumiki

  Research Association for Hydrogen from Coal Process Development Manual Corporation & AssisTec

• Yoshida Nobuo

  Research Association for Hydrogen from Coal Process Development Hitachi, Ltd.

• Hashimoto Ryouichi

  Research Association for Hydrogen from Coal Process Development Tokyo Gas Co., Ltd.

• Muramatu Tadayoshi

  Research Association for Hydrogen from Coal Process Development Electric Power Development Co., Ltd.

• Koyama Shuntaro

  Hitachi, Ltd.

• Takagi Masato

  Hitachi, Ltd.

• Kida Eiji

  Babcock-Hitachi, K.K.

Bibliographic Information

Other Title

• 酸素吹き気流層石炭ガス化パイロットプラントの環境特性
• サンソ フキ キリュウソウ セキタン ガスカ パイロット プラント ノ カンキ

Abstract

The behavior of trace elements in four coals during entrained-bed coal gasification in a 50 t/d plant (HYCOL) was characterised by their distribution in solid, water and gas. More volatile elements were present in dust from water scrubbing (cake) than in slag from the gasifier. The cake contained submicron particles. Results from leaching tests on slag and cake showed that water emissions were below the regulatory limit. More than 90% of the coal sulfur was liberated and converted to H₂S and COS in the syngas and a few percent of the coal nitrogen converted to NH₂ and HCN. Since almost all NH₂ and HCN can be removed by water scrubbing, their contents in syngas were less than a few ppm. The scrubbing system will remove a significant proportion of submicron particles and nitrogen compounds from syngas.<BR>The trace elements in syngas and the elements possibly accumulated in the plant devices must be measured directly to understand the behavior more precisely.

Journal

• KAGAKU KOGAKU RONBUNSHU

  KAGAKU KOGAKU RONBUNSHU 23 (1), 18-27, 1997

  The Society of Chemical Engineers, Japan

Keywords

• Coal Gasification
• Ash
• Trace Elements
• Hazardous Air Pollutants

Details

• CRID: 1390282679486219264
• NII Article ID: 10002766922
• NII Book ID: AN00037234
• DOI: 10.1252/kakoronbunshu.23.18
• ISSN: 13499203
• ISSN: 0386216X
• NDL BIB ID: 4119082
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I4119082
• Web Site: http://www.jstage.jst.go.jp/article/kakoronbunshu1975/23/1/23_1_18/_pdf
• Text Lang: ja
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed