COGを利用した低カロリー焚き燃焼器技術(<総説特集>コークス炉ガス(COG)利用技術の最前線)

概要

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Utilization of byproduct waste gases that are generated at steel and petroleum industries are an excellent source of low cost energy. These gases find application as low BTU fuels in gas turbine combined cycle power plants. However, the physics pertaining to low BTU fuels combustion necessitates some modifications to the combustor design operated with more common fuels such as natural gas and liquid fuels. Mitsubishi has designed two types of diffusion combustors for burning low BTU fuels depending on the burning speed capacity of the fuel. A combustor with a short residence time was developed for high burning velocity fuel, and a long residence time type of combustor was developed specifically for low burning velocity fuel. Low burning velocity fuel is composed of BFG and COG. Mitsubishi has successfully operating experience in low BTU fuels with COG. Two types of combustors has been operated in Mitsubishi's large frame industrial gas turbines at turbine inlet temperatures ranging from 1000 to 1350deg.C.
2006-05-20