Activities New Energy Award 2000 Director-General of the Agency for Natural Resources and Energy Prize

New Energy Award 2000

Application Category

Reformed Gas Fuel from Waste at Steel Works
Winner
Kawasaki Steel Corporation

This is the Japan's first reformed gas type waste fuel producing facility at practical scale, which generates fuel gas by heating and melting industrial waste at high temperature.
Discharge of toxic materials including dioxins is extremely low. Produced gas can be utilized in various ways.
The advanced concept of the waste fuel manufacturing facility with positive environmental countermeasures for industrial waste treatment was highly evaluated together with its high economic efficiency achieved by introduction of the practical scale of the reformed gas type waste fuel producing facility in the steel works.

Features of Equipment, Systems and Facilities

Facility

Kawasaki Steel Thermo-Select Method (150 t/day per furnace = 2 lines)
It produces fuel gas consists mainly of hydrogen and carbon monoxide from waste.
Production capacity of fuel gas (estimated value) : 90,000 t / year × 1,783 Mcal = 160,000,000 Mcal / year.
Waste is pressed without pretreatment and processed with dry and heat decomposition treatment in the degasification channel by indirect heating.

After the heat decomposition, the waste is placed in the high temperature reaction furnace and melted by reaction with oxygen and heat decomposition carbon.

Gas produced is reformed, cooled, and purified, then recovered as clean fuel gas. The fuel gas is used for the existing gas turbine combined power generator in the steel works.

Appearance of the facility

Features
This is Japan's first practical scale facility to recover fuel gas from industrial waste. Exhaust gas from waste is not discharged to the outside of the facility at all as it is recovered as fuel gas and transferred to the steel works. Further, as reusable materials such as slug, metal, metal hydroxide and sulfur are collected as well as fuel gas from waste, final treatment is not necessary. As a result, the total discharged amount of dioxin is extremely reduced. The facility also functions as decomposition equipment for dioxin and other toxic substances.
A step for a recycling community
By products generated from waste are utilized effectively by making most of the infrastructure of steel works and their location, which is near to the waste disposal area. This contributes to zero land fill wastes and will be a step for the realization of recycling community.

New Energy Award 2000

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