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- Reduction of Greenhouse Gas Emissions
Reduction of Greenhouse Gas Emissions
Scope 1, 2
In accordance with the “Act on Promotion of Global Warming Countermeasures”, we collect data on the emissions of carbon dioxide (CO2) and other GHG from all of our business establishments, including our plants, laboratories, and head office and submit this data to the national government. In FY2017, the conversion of the fuel of melamine heating furnace from heavy oil to natural gas, which generates less GHG, helped to reduce GHG emissions from energy use and non-energy use. The volume of reduction of emissions was 53,000 tons-CO2e compared to FY2016 levels. By reducing emissions by 15% from FY2011 level, the energy consumption rate calculated as a ratio of emissions and sales (emissions / sales) significantly improved by 64% compared to that of FY2011.
Scope 3: Indirect Emissions of GHG via the Supply Chain
To discover our GHG emissions throughout the supply chain, from the purchase of raw materials to use and disposal by customers, we calculated our indirect GHG emissions via the supply chain (Scope 3) in addition to our direct GHG emissions (Scope 1) and indirect emissions derived from energy (Scope 2). We also participated in the Ministry of the Environment’s SC (Supply Chain) emissions calculation support project, and the results of these initiatives are available on the Green Value Chain Platform website at https://www.env.go.jp/earth/ondanka/supply_chain/gvc/en/. Scope 3 was calculated and found to be accounted for 62% of purchased products and services.
TOPICS：Efforts for Reducing GHG Emissions
At the Toyama Plant, fuel and feedstock for ammonia were conversed from naphtha and heavy oil to natural gas in August 2016 and fuel for melamine heating furnace in August 2017. This contributed to a major achievement in reducing emissions of not only carbon dioxide but also sulfur oxides (SOx). We also contributed to reduction of GHG emissions by making effective use of carbon dioxide, which is a by-product of the manufacturing process.
On the other hand, in July 2017, production capacity of nitric acid was optimized to reduce nitrous oxide (N2O) emissions generated from reactors by approximately 30,000 tons as CO2 equivalent per annual. This year, we plan to switch fuel used in heating furnaces using cyanuric acid as a heating medium. We will continue to expand the use of natural gas for other boiler fuels and consider ways to reduce the amount of GHG emissions in order to reduce our environmental impact.
