CO2 Ultimate Reduction in SteelmakingP (COURSE50 P j t)Process (COURSE50 Project)

COURSE50 :CO2 Ultimate Reduction in Steelmaking process byInnovative technology for cool Earth 50

13.9.2016

〇Shigeaki Tonomura1,Yutaka Ujisawa1, Natsuo Ishiwata2, Naoki Kikuchi3,Shin Tomisaki4 and Yukio Tomita5Shin Tomisaki and Yukio Tomita

1 Nippon Steel &Sumitomo Metal Corporation,2 JFE Steel Corporation2 JFE Steel Corporation, 3 Kobe Steel Co., Ltd.,4 Nippon Steel & Sumikin Engineering Co.,Ltd.,5 Ni hi S l C L d5 Nisshin Steel Co., Ltd.

Overview of R&D Activities in COURSE50

(1) Technologies to reduce CO2 emissions from blast furnace (2) Technologies for CO2 capture

・Chemical absorptionReduction of cokeIron ore

H amplificationCoke BFG

・Physical adsorptionCoke production technology

H2 amplification

Shaft furnace

CO-rich gas

Regeneration

CO2 storage technology

for BF hydrogen reduction

COG reformer

H2

High strength & high reactivity coke

Coking plant BFRegeneration

Tower

Reboiler

Absorption Tower

Iron ore pre-reduction

technology Coke substitution reducing agent production technology CO2 capture

technologyfor BF hydrogen reduction

Reaction control technology Other project

Electricit

Steam Cold air

Hot air Sensible heat recovery from slag (example) Waste heat recovery boiler

KalinaSlag

technology

BOF

Electricity

Hot metal

Kalina cycle

Power generation Technology for utilization of unused waste heat

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R&D Organization

*

*NEDO: New Energy and Industrial TechnologyDevelopment Organization

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p g(National Research and Development Agency)

Approach Methods

Sequestration of

2

Sequestration ofCO2

Use of non-carbon reductants

S ti d t f

tic C

O2

hods

Separation and capture of CO2Separation from blast

(1)Utilization of HydrogenNatural gasBy-product gas

to d

rast

ion

met furnace gas

･Chemical absorption･Physical adsorption

By-product gasIndirect utilization of electricity

(2)Di ili i f l i i

proa

ch t

miti

gati Physical adsorption

Separation from other processes･Smelting reduction on a coal

(2)Direct utilization of electricity hydrometallurgical electrolysis method

App m ･Smelting reduction on a coal

basis･Direct reduction on a coal b i

(3)Utilization of C-neutral reducing agent (biomass charcoal waste)basis agent (biomass, charcoal, waste)

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R&D Schedule

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Concept of Iron Ore Hydrogen Reduction Reinforcementp y g

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Hydrogen Reduction Trial in LKAB Experimantal BFyd oge educt o a pe a ta

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Results of Hydrogen Reduction Trial y g

H2 reduction increased in both COG injection from the blast tuyeres andreformed COG injection from the shaft tuyeres because of the fast reactionrate of H2 reduction.・Carbon direct reduction decreased which is a huge endothermic reaction;・Carbon direct reduction decreased, which is a huge endothermic reaction;this is the main reason for the reduction in carbon input.

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Results of Oxygen Potential in the Blast Furnace

Upper shaft tuyeresHot top gas

Upper shaft probe

Lower shaft tuyeresRCOG

COG

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New Experimental Blast Furnace p

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Location of New Experimental Blast Furnace

10/17NSSMC Kimitsu Works

Schematic View of New Experimental Blast Furnace p

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Photo of Ne E perimental Blast F rnacePhoto of New Experimental Blast Furnace

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Inside of Experimental Blast FurnaceInside of Experimental Blast Furnace

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Pre-test Operation results of Experimental BFPre test Operation results of Experimental BF

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Pre-test operation of experimental BF

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Pathway to the Target

12

14

12

14

Improvement

10

12

mis

sion

s rn

ace(

%)

10

12 Improvement of coke

Improvement f

6

8

erin

g C

O2

emth

e bl

ast f

ur

6

8 of raw materialsImprovement of blast

2

4

Low

efr

om t

2

4 conditions Simple application of COG

Several candidates come under review

00 5 10 15 20 25

Sequestration of CO2 from BFG

0Lowering CO2 emissions from

the blast furnace(%)(%)

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Concluding Remarks

COURSE50 aims at developing new drastic CO2 reduction technologies.The CO2 emissions reduction target is approximately 30% in the steel works.

The project aims to achieve this reduction through iron ore reduction byThe project aims to achieve this reduction through iron ore reduction byusing coke oven gas (hydrogen resource containing) to suppress CO2 emissions From blast furnaces, in combination with separation and recovery of CO2from blast furnace gas by using unused waste heat in the steel works.

The project completed the development of the basic technologies in STEP 1The project completed the development of the basic technologies in STEP 1(2008-2012) according to schedule, and is now engaged in the developmentof the comprehensive technologies in STEP 2 (2013-2017).

The goal of the project is to establish the CO2 reduction technologies whichcontribute technically to commercialize the first unit by around 2030contribute technically to commercialize the first unit by around 2030and to generalize the technologies by 2050, considering the timing of thereplacement of blast furnace equipment.

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