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GEM: Blast furnace decarbonisation remains key focus of glo-Heat Treatment Exhibition-Industrial Furnace Exhibition-The 26th China(Guangzhou)International Heat Treatment, Industrial Furnace Exhibition
12/23/2025 热处理展-工业炉展-heat treatment expo-furnace expo |
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Recent research has shown that the global steel industry''s greenhouse gas (GHG) footprint was around 4.43gigatonnes of C02equivalent (Gtc02e) in 2023, which was 8.2 percent of total global GHG emissions of around53.8 GtC02e in that year. The steel industry''s share in total global C02 emissions, excluding other GHGs, washigher at 10.7 percent.
In 2025, global steel industry emissions actually fell marginally by 0.4 percent year on year. But this has beendue to decrease in production because of weak economic sentiments and slump in demand rather than throughlow-carbon technology deployment.
Cross country steel industry emissions data recently published by Global Energy Monitor (GEM) for the year2023 (the latest data available) show how unequal access to critical raw materials such as ferrous scrap andlow carbon fuels shape the emissions trajectory of diferent countries. For example, the US and Turkiye have farlower average emissions intensity of steel production (around 1.2 tcO2e/tcs) compared with China and india(around 2.6-2.5 tCo2e/tcs).
This is because China and ndia are largely dependent on coal for steel production due to unavailability of scrapin required volumes and lower access to comparatively cleaner natural gas unlike the US.
Blast furnace emissions
So, with the Chinese steel industry contributing 55-60 percent of global production, and with india being thesecond largest producer increasing its share at the fastest pace among all countries, the focus of steeldecarbonisation naturally shifts to Asia and, of course, the blast furnace which comprises around 90 percent ofChinese steel production and roughly 45 percent of India''s output.
Although india''s coal dependence doesn''t end with the blast furnace, with coal-based DRl forming a significantchunk of total iron production, the sheer scale of announced investments in BF-BOF steel production reinforcesthe focus on the BF as the central focus of decarbonisation efforts in India and globally.
For perspective, BF-BOF accounts for over 88 percent of steel industry emissions, as per GEM data. "(The BF.BOF route) accounted for nearly 3.9 GtcO2e, while electric arc furnace (EAF) route emitted around 0.53GtCO2e" globally in 2023, states GEM''s latest Steel Climate lmpact 2025 report.
"Fuel-related emissions remain the main driver across all routes, especially in BF-BOF steelmaking, reflectingthe industry''s heavy reliance on coal. Emissions are also highly concentrated geographically: China aloneproduced about 60 percent of global steel GHG emissions, followed by India, Japan, Russia, and South KoreaThese five countries alone account for around 80 percent of global steel GHG emissions," the report observes.
热处理展-工业炉展-2026第二十六届广州国际热处理、工业炉展览会-巨浪展览-Heat Treatment Exhibition-Industrial Furnace Exhibition-The 26th China(Guangzhou)International Heat Treatment, Industrial Furnace Exhibition
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