The Role of Precious Metals in Contributing to Carbon Neutrality

The Role of Precious Metals in Contributing to Carbon Neutrality

TANAKA will take on the challenge of addressing global warming, a social issue on a global scale, by aiming to achieve carbon neutrality by 2050 and actively introducing technologies that contribute to a decarbonized society within the Group and in society.
Through products and solutions that utilize the unique characteristics of precious metals, TANAKA will continue to provide value to customers and society as a whole.

For more details on our Carbon Neutrality Declaration, click here.

Toward the Realization of a Hydrogen Society

With the international framework for reducing greenhouse gas emissions (Paris Agreement) adopted at COP21 as its cornerstone, a shift to renewable energy with the aim of eliminating fossil fuels is underway worldwide.
Hydrogen energy is positioned as a core technology, and progress is being made in the practical application of hydrogen production from renewable energy, hydrogen energy storage and transportation, and hydrogen fuel cells.

Global hydrogen and hydrogen-based fuel use in the NZE
(Hydrogen consumption outlook by sector and industry)

Forecast of hydrogen consumption by sector and industry worldwide from 2020 to 2050. Source: IEA
Source: IEA 2021; Net Zero by 2050 A Roadmap for the Global Energy Sector,
https://www.iea.org/reports/net-zero-by-2050, License: CC BY 4.0

Amid this global trend, TANAKA is actively engaged in developing new technologies and, as a leading company in precious metal products, will contribute to the realization of a hydrogen society.

TANAKA's hydrogen-related products and solutions are used in various fields.

ACatalyst for Fuel CellsBPrecious Metal Plated ProductsCCatalyst for water electrolysisDReforming/Conversion/PROX CatalystEexhaust gas purification catalystFHydrogen Permeable Membranes

TANAKA's hydrogen-related products and solutions in various fields

Fuel Cell Stacks and Water Electrolysis Stacks

ACatalyst for Fuel CellsBPrecious Metal Plated ProductsCWater Electrolysis Catalyst

Schematic of precious metal material usage in fuel cell stacks and water electrolysis stacks

Stationary Fuel Cell System

DReforming/Conversion/PROX CatalystEexhaust gas purification catalystFHydrogen Permeable Membranes

Schematic of where precious metal materials are used in a stationary fuel cell system

TANAKA offers a variety of fuel cell-related products that use precious metals, including Electrocatalysts for Fuel Cells, which are used in polymer electrolyte fuel cells (PEFC) and have world-class shipment volumes, Electrocatalysts for Water Electrolysis, which are necessary for hydrogen production, Palladium Hydrogen Permeable Film, which enables the purification of hydrogen with high purity, Reforming Catalysts, which are used to generate hydrogen from hydrocarbons such as natural gas, and PROX Catalysts, which selectively oxidize and remove carbon monoxide during hydrogen generation.

Initiatives for Ammonia as a Zero Emission Energy

Ammonia (NH3) is expected to serve as a hydrogen carrier and a zero-emission fuel that, like hydrogen, does not emit CO2during combustion. With its significant potential as a next-generation energy source, ammonia is now being produced at chemical plants worldwide.
In order to use this promising energy source efficiently and safely, the precious metal catalysts developed by our company are being utilized.

Utilization of Ammonia and the Role of Precious Metal Catalysts

Diagram explaining the role of precious metal catalysts in ammonia utilization

Ammonia Reforming
Decomposes ammonia to generate hydrogen
2NH3→ N2+ 3H2

Ammonia purification
Suppresses the generation of nitrogen oxides
(NOx and N2O) during ammonia decomposition
4NH3+ 3O2→ 2N2+ 6H2O

Nitrogen oxide removal
Using ammonia
Decomposes NOx at low temperatures
4NO + 4NH3+ O2→ 4N2+ 6H2O

We provide ammonia reforming catalysts that decompose ammonia to generate hydrogen and catalysts for suppressing and decomposing NOx and N2O in ammonia-containing exhaust gas.

Carbon recycling (CO2utilization) initiatives

CO, which causes global warming2Methods for reducing concentrations are not limited to developing and promoting low-carbon products.
In recent years, CO2not only reduces CO2Collect and use CO2Utilization Technology is gaining attention.

Image of CO2Utilization (Image based on products provided by TANAKA)

Conceptual image of CO2 utilization using our products

TANAKA2produces methane as fuel Methanation catalyst and produce CO and hydrogen, which are used as chemical raw materials. Carbon dioxide reforming catalyst, reverse shift catalyst By developing and providing carbon recycling (CO2We will promote the utilization of this information.

Examples of Initiatives at Business Sites Toward Carbon Neutrality

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