Net Zero Targets and Sources of GHG's
The International Council on Mining and Metals (ICMM) has committed its members to achieve Net-Zero Scope 1 and 2 greenhouse gas (GHG) emissions by 2050 or sooner. Their members account for over 650 mining sites in more than 50 countries.
24/7 Renewable Power
In mining, electricity is essential for various key operations and processes and accounts for 30-35% of a mine's GHG emissions. As such, mines are looking at various renewable energy strategies that can provide them with 24/7 green power and support their future mine electrification plans.
Process Heat
The source of the process heat for calcining, drying, roasting, etc is typically from fossil fuels like coal, diesel, HFO, propane and natural gas. As a result, these thermal processes are a major additional source of GHG emissions and mines are looking at ways of decarbonizing these assets.
Material Movement
Material movement is one of the most critical operations in mining, directly impacting productivity, costs, safety, energy efficiency, GHG emissions and sustainability. Mines are looking at ways to reduce or eliminate their diesel fuel usage through electrification and more efficient hauling technologies.
Alternative Fuels
Mines are exploring alternative fuels to diesel fuel and other high carbon intensive fossil fuels for mine transportation and process heat applications in their quest to decarbonize their operations. These alternative fuels include Biodiesel, Renewable Diesel, LNG, Hydrogen, E-Fuels and Synthetic Fools.
Are Trucks the right tool for the job?
Russell Blades from Barrick Gold and Adriaan Davidse from Deloitte discuss potentially better ways to move ore rather than using conventional diesel haul trucks. These strategies include various electric based options like Railveyor and Conveyors that are designed to reduce energy and operating costs and GHG emissions.
To help mine's decarbonize their mining operations, they will need "round - the - clock" renewable power and process heat. Technologies like 247Solar can provide the necessary electrical and thermal (250C) requirements for the mine's existing and future (mine electrification) power needs and thermal processes like ore/concentrate/pellet drying, etc. These thermal processes have been difficult in the past to decarbonize as they typically operate on expensive fossil fuels (diesel, HFO, coal, natural gas) that generate significant GHG's and other harmful emissions
In the Mining Industry, the calcination process is used in the production of lime and the decomposition of lithium bearing minerals (spodumene) to make lithium more chemically reactive for further processing. Not only do these processes produce CO2 from the fuels (diesel, coal, HFO, natural gas) they burn but the chemical reactions also produce CO2. Calix's patented core platform technology delivers efficient indirect heating of minerals, the ability to use of renewable electricity for heating and the simplification of carbon capture from the raw materials without additional chemicals or processes.
Material movement using diesel haul trucks is a major energy and operating expense within the mining industry and a significant contributor to the site's GHG emissions (0.096 kgCO2e/tonne-km). Haul trucks are also a very inefficient way of moving ore and other payloads. In comparison, conveyors (0.022 kgCO2e/tonne-km) and electric trains like Railveyor (0.012 kgCO2e/tonne-km) provide cost effective and lower carbon intensity alternatives to using diesel haul trucks to move ore, waste and other materials..
Energy and Mining Consulting
14828 Rocky Top Drive, Huntersville, NC, 28078, United States
Phone: 702-764-5120
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