書誌事項
- タイトル別名
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- Development of Pyrolytic Gasifier
- パイロリティックガスカロ ノ カイハツ
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The purpose of this study is to investigate experimentally the characteristics of a pyrolytic gasifier. Two facilities were used. One is a 1⁄5 scale plastic model of the 6t⁄d pilot plant. With this model the relative solid circulation rate was measured. The second facility was used the lab-scale bubbling fluidized bed gasifier coupled with a pneumatically transported char bed combustor. Here, the gasification characteristics were investigated for a two-stage bubbling fluidized bed gasifier.The results revealed that a relative solid circulation rate above 20 could be achieved by control of fluidized bed height and pressure in the gasifier, therefore allowing self-sustaining operation. The combustor inlet showed severe wear; hence, for this part abrasion-resistant material must be used. Concerning gasification characteristics, the two-stage bubbling fluidized bed gasifier showed a remarkable increase in gasification efficiency and tar suppression. When gasifying Ca-impregnated fuel, however, no remarkable change in tar contents was observed. This result is interpreted such that tar can easily be reformed/destructed by a Ca-catalyst. A cold gas efficiency about 83.5 %, which is feasible for self-sustained operation, was still achieved at somewhat lower temperatures in the gasifier for Ca-impregnated fuel. Consequently, the operation of the pyrolytic gasifier is easy. However, for the lower temperature tar increased. Therefore, gas reforming at a subsequent stage of the gasifier is important.
収録刊行物
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- 高温学会誌
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高温学会誌 33 (1), 21-26, 2007
一般社団法人 スマートプロセス学会 （旧高温学会）
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詳細情報 詳細情報について
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- CRID
- 1390001206429102848
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- NII論文ID
- 10029254621
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- NII書誌ID
- AN00080051
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- BIBCODE
- 2007JHTS...33...21M
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- COI
- 1:CAS:528:DC%2BD2sXks1Kksro%3D
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- NDL書誌ID
- 8670108
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- ISSN
- 03871096
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- NDL
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- 抄録ライセンスフラグ
- 使用不可