Optimization of Combined Cycle Power System with Blast Furnace Gasification

Abstract

This paper proposes the early stage Plan that Iron works and Refinery cooperate to save energy and to increase Co-production Blast Furnace process is originally Co-production process (Iron production & Gasification production) Excess fuels (asphalt & pulverized coal) injecting into Blast Furnace is gasified high-efficiently (95〜98%) At the early stage Plan, Excess fuels are asphalt 60kg/ton-pig iron and pulverized coal 65kg/ton-pig iron. This Blast Furnace Gasification System and BFG (Blast Furnace Gas) Combined Cycle Power System are optimized in a typical Iron works model (6mihon ton/Y steel product) with Pinch Technology method This Optimization yields Power (559MW) and surplus COG (Coke Oven Gas) that is exported to Refinery Energy saving 13% of total Iron works energy consumption is estimated.