GASIFICATION OF SOLID FUEL AT THE DEMONSTRATION PLANT OF MEET SYSTEM, MEET II

摘要

MEET (the Multi-staged Enthalpy Extraction Technology) system is a new coal/wastes-fired power generation system. In order to realize MEET system, demonstration plant of commercial scale, MEET II, was completed. The capacity of MEET II is 2 t/day of coal or 4 t/day of RDF. There were no such small-scale plants, which can utilize energy from solid fuel. MEET II consists of pebble bed slagging-gasifier, high-temperature air generator and high temperature air combustion boiler. The gasification by high-temperature air results in higher calorific value of syngas. Cleaned-up syngas is used as a fuel of boiler, and for preheating air to high temperature. Gasification tests at MEET II were conducted using pulverized coal as a fuel. The tests were performed with no trouble from light-off to shut down, and smooth slag extraction and almost targeted high-calorific syngas was obtained.