18 February 2025

Sweden: Heidelberg Materials has successfully operated a 300kW plasma-heated cement kiln at its Slite cement plant, which it claims is the first of its kind. The producer has achieved 54 hours of continuous operation, with 60% CO₂ concentration in the flue gas. The aim is to reach 99%.

The kiln is part of the ELECTRA project, which aims to replace traditional combustion processes with electricity-based solutions, like plasma. The project consists of 17 partners from 8 countries.

Project manager Bodil Wilhelmsson said "It looks very promising. We started the tests at the end of last year and can now say with certainty that this is the right way to go: we will be able to produce clinker with plasma."

Fuel-related CO₂ emissions from cement production are eliminated because no fuel needs to be used in the production process. Instead, CO₂ is heated to over 5000°C, where it becomes a plasma jet that heats the material in the kiln.

Wilhelmsson added "The absence of fuel in the process means that there is no ash in the product. This means that a parameter that could affect the quality of the product if it fluctuates is no longer considered. So, it looks like the quality of the clinker can actually be slightly higher in this process."

Heidelberg Materials plans to build a 1MW kiln in Skövde cement plant in 2026, where further tests will continue.

Nigeria: The Lagos State government has signed a memorandum of understanding (MoU) with Lafarge Africa for the collection of non-recyclable combustible waste from across the state and landfill sites for conversion into alternative fuel at Lafarge’s Ewekoro plant.

Lafarge Africa CEO Lolu Alade-Akinyemi said “We have successfully deployed waste-to-energy solutions globally, and today, we are extending that expertise to Lagos.”

Taiwan: The government will draft carbon border adjustment mechanism (CBAM) legislation in the second half of 2024 ‘at the earliest’, according to the Taipei Times. The measure will follow the EU's CBAM implementation in 2026, with official guidelines expected to be issued by July or August 2025.

Domestic cement and steel producers have reportedly complained to the Ministry of Environment that competing importers are not required to disclose their emissions. Subsequently, the Ministry is preparing a list of importers to be regulated. According to the Minister of Environment, Peng Chi-Ming, Taiwan imports about one-third of its cement from Vietnam, which would be subject to CBAM regulations.

The legislation will align with corresponding EU regulations and complement carbon fees for domestic producers introduced in 2024.

Uzbekistan: Cement companies in Uzbekistan produced 16Mt of cement in 2024, according to data from the national Statistics Agency. This represents a 34% year-on-year increase from 2023, when companies produced 11.9Mt.

India: Star Cement has successfully commissioned a 7MW air-quenched cooler waste heat boiler at its newly operational cement plant in Lumshnong, Meghalaya. increases the plant’s total waste heat recovery (WHR) capacity to 19MW. The WHR project aims to improve operational efficiency and reduce environmental impact.