Gasification performance of coals using high temperature air

Shinobu Sugiyama, Naoki Suzuki, Yoshitaka Kato, Kunio Yoshikawa, Akira Omino, Toru Ishii, K. Yoshikawa and Takashi Kiga

Energy, 2005, vol. 30, issue 2, 399-413

Abstract: MEET (Multi-staged Enthalpy Extraction Technology) system is a new coal/wastes-fired power generation system. In order to establish the MEET system technology, a demonstration plant of commercial scale, MEET-II, was installed. The capacity of the MEET-II is 2 t/day of coal of 4 t/day of RDF. MEET-II consists of a pebble bed slagging-gasifier, a high temperature air generator, and a high temperature air combustion boiler. Gasification with high temperature air results in higher heating value of syngas. Cleaned-up syngas is used as a fuel for the boiler as well as for preheating air up to 1000 °C. Combustion and gasification tests at the MEET-II were conducted using pulverized coal as a fuel. Combustion experiments demonstrated almost complete char combustion with a short residence time, and gasification experiments demonstrated targeted calorific value of syngas, 1000 kcal/mN3.

Date: 2005
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Citations: View citations in EconPapers (7)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:30:y:2005:i:2:p:399-413

DOI: 10.1016/j.energy.2004.06.001

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