Social Issues addressed by Sumitomo —Compass for the Future—

Sumitomo Rubber Industries × Decarbonization

Aiming for tire manufacturing without CO2 emissions by utilizing hydrogen produced in Fukushima, where the plant is located, as a heat source in the production process

 Decarbonization
Among greenhouse gas (GHG) emissions implicated in global warming, carbon dioxide (CO2) emissions are a major culprit. Hence the importance of initiatives to reduce CO2 emissions in the drive to achieve net zero GHG emissions, i.e., carbon neutrality. In order to limit the global average temperature increase and achieve net zero GHG emissions in the second half of the 21st century, which are among the goals of the Paris Agreement, the Japanese government set a target of a 26% reduction in GHG emissions by 2030 compared with 2013. In October 2020, the then-prime minister declared that Japan intends to achieve carbon neutrality by 2050. At the Leaders Summit on Climate, hosted by the U.S. in April 2021, Japan declared its target of a 46% reduction in GHG emissions by 2030 compared with 2013. Sumitomo Rubber Industries began a proof of concept that involves using hydrogen energy in tire production processes at its factory with the aim of achieving carbon neutrality in 2050. The company targets zero CO2 emissions from production while also promoting local production for local consumption by utilizing hydrogen produced within the region where the factory is located.

In manufacturing industry, achieving zero CO2 emissions in production processes is a critical theme. Many manufacturers share a sense of urgency, believing that if they do not position decarbonization at the heart of their business, it will be a major risk for their future.

The core business of Sumitomo Rubber Industries is manufacturing tires for motor vehicles. The company formulated a long-term sustainability policy in 2021. By promoting initiatives to enhance both the Sumitomo Rubber Group’s economic value and the Group’s value to society as well as ESG management, Sumitomo Rubber Industries aims to achieve carbon neutrality (Scope 1 and 2) by 2050 and various other targets.

The company is working to reduce CO2 emissions through energy saving, cogeneration (combined heat and power generation), and the use of solar power generation, but these efforts alone will not reduce CO2 emissions to zero. Tire production processes emit CO2 when generating steam, which is necessary as a heat source. Since this steam is at a high temperature of over 100°C and at high pressure, it is technically difficult to generate steam using electricity. One option would be to develop a technology that does not use steam, but even if such a technology were developed, it would require new facilities, which would be costly, and existing production equipment would no longer be usable. Therefore, natural gas, a fossil fuel, is currently used, but the company felt that it would be difficult to achieve carbon neutrality by 2050 if the current situation continued.

Strive to reduce factory CO2 emissions by Energy Saving, Congenerasion(combined heat and power), Solar power, as well as exploring possibility of using hydrogen for curing process

Sumitomo Rubber Industries has focused on using hydrogen instead of natural gas as an energy source for steam generation. The advantages of hydrogen are not only that it can generate steam without emitting CO2 during combustion but also that the technology has been established to a certain degree and existing equipment can continue to be used. In addition, the company can utilize the expertise it has accumulated in tire manufacturing. Having decided that generating steam with hydrogen is the most realistic and effective approach at present, the company embarked on a proof of concept.

The main tire manufacturing plant of Sumitomo Rubber Industries is in Shirakawa City, Fukushima Prefecture. Opened in 1974, the Shirakawa Factory is one of the largest tire plants in Japan, with a daily production capacity of 43,000 tires. This factory also serves as a base for R&D. A large site area means that it can easily accommodate future facility expansion. In August 2021, with the support of the New Energy and Industrial Technology Development Organization (NEDO), the company began a proof of concept at the Shirakawa Factory for use of hydrogen with the ultimate goal of achieving carbon neutrality of tire manufacturing.

Tire manufacturing involves six processes: mixing rubber and chemicals, manufacturing tire components, assembling the components, vulcanizing to unify several types of rubber to make a tire by heating and pressurizing to cause chemical reactions, inspection, and shipping. Since, as a heat source, the vulcanization process uses high-pressure, high-temperature steam, which is difficult to generate using electricity, it is the biggest hurdle to carbon neutrality in the tire and rubber industry.

Sumitomo Rubber’s largest R&D base. With plenty of ground area, easily able to install new facilities and ready for future expansion

The purpose of the proof of concept is to confirm stable and efficient operation of the hydrogen boiler during the vulcanization process and evaluate the effectiveness of fuel conversion to hydrogen, as well as to establish a model for local production for local consumption of hydrogen by using hydrogen produced in Fukushima, where the plant is located. Fukushima Prefecture is a pacesetter in terms of utilization of renewable energy and home to cutting-edge research on hydrogen. In this proof of concept, hydrogen produced in Koriyama City, which is near the Shirakawa Factory, will be mainly used, with hydrogen produced in Iwaki City as a backup. Both cities are in Fukushima Prefecture.

Use of locally produced hydrogen results in reduction of CO2 emissions during transportation. In addition, the company also aims to contribute to local production for local consumption by participating as a consumer in the Fukushima Plan for a New Energy Society promoted by the Ministry of Economy, Trade and Industry, the Agency for Natural Resources and Energy, and the government of Fukushima Prefecture.

In April 2022, construction of a hydrogen gas receiving facility and a hydrogen boiler began on the premises of the Shirakawa Factory, with plans calling for operations to begin in January 2023. In addition, a solar power generation facility will be installed separately from the proof of concept. Sumitomo Rubber Industries aims to develop tires whose manufacture involves zero CO2 emissions, including through the use of electricity from the photovoltaic power generation facility.

SUMITOMO RUBBER INDUSTRIES
https://www.srigroup.co.jp/english/
Since our founding in 1909, the Sumitomo Rubber Group has created numerous Japan-first and world-first products and technologies, from manufacturing Japan’s first domestic automobile tire in 1913 to developing the world’s first 100% fossil resource-free tires and more. Taking full advantage of our advanced proprietary rubber technologies, the Sumitomo Rubber Group is actively engaged in the global manufacture and sale of various types of tires for passenger cars, trucks, buses and motorcycles under our flagship DUNLOP and FALKEN brands. In addition to our main Tire Business, we also operate a Sports Business and an Industrial Products Business, manufacturing and selling everything from golf balls and clubs to dock fenders and medical rubber stoppers worldwide.
“Our Philosophy,” the Corporate Philosophy Framework of the Sumitomo Rubber Group, defines our Purpose thusly: “Through innovation we will create a future of joy and well-being for all.”

Social issues addressed by Sumitomo Group companies

Decarbonization

Decarbonization

Read about initiatives to achieve a low-carbon society, aiming at net-zero greenhouse gas emissions since these emissions are implicated in global warming.

Supply chain

Supply chain

In view of ongoing globalization and the growing complexity of supply chains, companies need to respond appropriately to issues in supply chains.

New workstyles

New workstyles

The pace of workstyle reform is accelerating as the COVID-19 pandemic has prompted numerous companies to embrace novel ways of working.

Health

Health

For companies, the COVID-19 pandemic has brought the crucial importance of employee health into sharp focus.

Climate Change

Climate Change

Accelerating global warming poses serious business risks. Accordingly, companies need to formulate strategies and implement specific countermeasures from a medium- to long-term perspective.

Electrification of mobility

Electrification of mobility

Spurred by efforts to reduce environmental impacts and in line with increasing social needs, replacement of gasoline-powered vehicles with electric vehicles is accelerating.

Community

Community

Vigorous initiatives are afoot to tackle social issues by revitalizing communities and the interpersonal relationships that bind them together.

Poverty

Poverty

Poverty persists in contemporary Japan and the existence of child poverty is a grave concern.

Development of the next generation

Development of the next generation

In view of the continuing decline of Japan’s working age population, due to population aging coupled with a low birthrate, development of the next generation is an urgent issue.

Advanced Medicine

Advanced Medicine

The rapid progress in medicine in recent years is largely due to the efforts of not only universities and other research institutions but also of companies to develop cutting-edge technologies.

Local production for local consumption

Local production for local consumption

Numerous initiatives to promote industry and commerce at the regional and community level are underway, involving the use of renewable energy and thus contributing to decarbonization.

Food loss and waste

Food loss and waste

One-third of food produced is lost or wasted globally, amounting to about 1.3 billion tons per year. Food loss and waste is a pressing issue in need of a solution.

Planetary Health

Planetary Health

Companies are addressing a wide range of issues so that people and companies can coexist in harmony with the global environment.

Resilience

Resilience

In addition to natural disasters, there are various types of hazards whose nature, incidence and severity are changing with the times. Resilience and flexibility are indispensable in dealing with them.

Regional revitalization

Regional revitalization

Read about initiatives to achieve sustainable regional revitalization. The attributes and resources that each region can offer are leveraged to strengthen local economies and overcome the problem of population decline.

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