NEDO-NSTDA 2nd Webinar
CCUS Technology: A Way to Carbon Neutrality of Thailand

IHI's Solution for Carbon Recycling
March 2023
IHI Proprietary Information
The information contained in this document is IHI
Proprietary Information and is disclosed in confidence.
It is the property of IHI and shall not be used,

Dr.Eng. Toshiyuki Suda
Program Director for Carbon Solution
Corporate Strategy Headquarters

disclosed to others or reproduced without the express
written consent of IHI. If consent is given forreproduction in whole or in part, this notice and thenotice set forth on each page of this document shallappear in any such reproduction in whole or in part.

Copyright © 2023 IHI Corporation All Rights Reserved.

IHI Group Company Profile

Copyright © 2023 IHI Corporation All Rights Reserved.

Confidential

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IHI’ s vision"a society that does not depend on fossil fuels for growth”

Confidential

Carbon neutrality of primaryenergy & hydrogen/carbon source
CO2

Carbon Neutrality
Rate of emission＝Rate of fixation

Atmospheric CO2
NuclearRenewables

Biomass
WastesCarbonSourceHydrogen, Ammonia

Hydrogen Source
Bio-feedstockE-feedstock

HydrogenCarbonElectricity

CO2Inevitable CO2emission

Negativeemission

Bio-fuel
E-fuelElectrification
Power from biomass,hydrogen & ammonia

Power from Nuclear

Feedstock for industry
Renewables
Power to X

Carbon neutrality ofpower generation

Ammonia

Power to X

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Fuel for transportation

Fuel for industry& household

Carbon neutrality of
fuel

Carbon neutrality offeedstock

Carbon Recycling / CCU
3

Confidential

Carbon Recycling / CCU Technology

Oxyfuel combustion
Electrolysis
Chemical adsorption

CO2 Capture

Gasification

Compact reactor
for SMR

Hydrogen, syngas
production

CCU
TechnologyConversion to valuable resources
Methanation, Olefin production，SAF…
Copyright © 2023 IHI Corporation All Rights Reserved.

4Confidential

CO2 Capture: Pilot Plants
20 ton-CO2/d Pilot Plant

Achieved approximately 40% higher energy efficiency

Location

IHI’s AIOI Works inJapan

Source Gas

Flue Gas of Coal-FiredBoiler
or Propane Gas Boiler

Captured CO2

20 ton-CO2/d

CO2 Capture Ratio

90%

Flue Gas Flow Rate

Max 4,000m3N/h-wet

PICA Pilot Plant

and more

The 5,000-hour operation successfully completed

Partially funded by BCIA
(Brown Coal Innovation Australia)

Location

Loy Yang A Power
plant In Australia

Source Gas

Flue Gas of CoalFired Boiler

Captured CO2

0.5 t-CO2/d

CO2 Capture Ratio

90%

Flue Gas Flow Rate

100 m3N/h-wet

PICA (Post-combustion carbon capture, IHI, CSIRO, AGL)

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20ton-CO2/d Pilot Plant (Chemical absorption)
Absorber Tower
and WashingTower（H42m）

Confidential

CCTF
desulphurizer

Stripper
Tower
Desulphurization
tower(H18mD
Control roomprecoolingtower
CCTF exhaust gasFanBoiler
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6Converting CO2 into valuable chemicals & fuelConfidentialConcept
CO2 is hydrogenated by H2 from renewable sources to clean fuel such as
methane and useful chemicals such as lower olefins as materials for plastics.
Methanation
Lower Olefins

CO2 + 4H2 → CH4 + 2H2O
2CO2 + 6H2 → C2H4 + 4H2O
3CO2 + 9H2 → C3H6 + 6H2O

Renewable source
H2Methane

Existing infrastructure

H2 generation

Lower Olefins
CO2Biomass

CO2 capture

Chemicalplants

Plastics

Syngas from biomass(CO+H2)
Gasification

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7Confidential

Unique IHI–ISCE2 Methanation Catalyst
CO2 + 4H2 → CH4 + 2H2O DH0298=-165 kJ/mol
Very high exothermic reaction

Sintering

Activity

Challenges for the catalyst;
Overcome the trade-off relationshipbetween Activity and Robustness

Carbondeposition

Our solution is core-shell type Ni catalyst

Poisoning

Active metal
Nano-size Ni
CH4 H2O

20nm

TEM Picture
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CO2H2Porous oxide
matrixKamata et al., Dispersed and high loading Ni catalyst stabilized in porous Reference
SiO 2 matrix
for XXXX
substituted
Numbernatural gas, Catal. Today 299, 193-200 (2018)8Confidential

Development of Methanation Catalyst
IHIGeneral catalyst• Ni nanoparticles in core-shell form Ni＠SiO2 • General supported catalysts（Patent No.6203375：IHI, ISCE2）

Catalyst• Small Ni particle size, highly dispersed andindependent• Porous matrix prevents particles fromcontacting each other（See Illustration）• Resistant to poisoning
and sintering• Allowable total sulphur
concentration highEvaluation

Ni particles• Ni metal particle size is relatively large andNi particles are present on the carriersurface• Ni easily moves and assembles on thePorous matrix surface of the carrier(See illustration）• Low to poisoning
and sintering• Allowable total sulphur
concentration low○△
Before reaction

After reaction

IHI－ISCE2
Methanation
catalyst
Porous matrix inhibits Ni nanoparticle growth.

Comparative
catalyst
Ni-basedmethanation
catalyst
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9Development of Methanation Catalyst

Confidential

Performance comparison under actual gas from gasified coal

Reaction RateIHI’s catalyst

Commercial catalyst✓ Coal gasification gas: conditions
with CO/H2 and poisoning
components sulfur, etc.
(strict conditions)✓ More stable performance thancommercial catalysts wasconfirmed under these actual gasconditions.

Stability evaluation of CO2 methanation catalyst✓ Confirmed that methane can bestably produced for more than
3000hrs without performancedegradation

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10Technical Roadmap for Methanation technology

Confidential

2019, Bench Scale test (1.25Nm3-CH4/h) have been carried out.
2020, Demonstration Scale Test (12.5Nm3-CH4/h) has been started.

2022, Small methanation system commercialized.

Lab ScaleTestMethan(Nm3/h)～0.05～2018

BenchScale Test

～1.252019

Demonstration
Scale Test

～12.5IHI－ISCE2Methanation Catalyst

Scaling up～Several ～Several
10,000100
3Nm3/hrNm /hr2020～

Demo-Scale Test 12.5Nm3-CH4/h

Lab Scale Test
～0.05Nm3-CH4/h（IHI YokohamaEngineering Center）

Bench Scale Test
1.25Nm3-CH4/h（IHI Yokohama Engineering Center
IHI Methanation System

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11Mid-scale Demonstration Project (500Nm3/h)

Confidential◆ World’s largest methanation facilities（500Nm3/h）and CO2 Capture◆ Utilizing reaction heat of methanation for CO2 Capture◆ Demonstration of technology to reduce CO2 emissions by 50% compared
to conventional in the blast furnace process in the steel industry.
◆ Realize carbon recycling by replacing coke with synthetic methane as thereducing agent in the blast furnace.
◆ The operation will be started in April 2025

Existing Blast Furnaces

Steel stone(Cokes)

Carbon recycling blast furnace

Exhaust Gas

Steel stone(Cokes)

Replacing coke with carbon neutral methane.
Blast furnace gas
Utilization

Methanation
Heated air

CarbonRecycling

pulverized
coal

Carbon neutral
Source：https://www.jfe-steel.co.jp/company/pdf/carbon-neutral-strategy_220901_1.pdf
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CO2 to Olefin project

Confidential

NEDO commissioned project
JPNP16002

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Power to X: Soma IHI Green Energy Center

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Confidential

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Soma IHI Green Energy Center (SIGC)

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Confidential15

Blockchain for Environmental Value Distribution

Confidential

IHI and Fujitsu start joint project on new environmental
value distribution platform using blockchain technology- Apr. 12, 2022 -IHI Corporation (hereinafter IHI) and Fujitsu Limited today announced
the launch of a joint project on environmental value trading starting
April 1, 2022, with the aim of contributing to the realization of a carbonneutral society and to revitalize the market of environmental value
trading ecosystems.

https://www.ihi.co.jp/en/all_news/2022/other/1197835_
3498.html

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