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Dr Paula Carey, Co-Founder & Chief Scientific Officer, Carbon8 explains the impact of carbon capture technology at Carbon8 on the productivity, efficiency and circular economy of cement plants.

Tell us about your carbon capture technology.
Carbon8’s carbon capture utilisation and storage (CCUS) technology is known as Accelerated Carbonation (ACT). In the process, carbon dioxide derived directly from flue gas generated by a cement plant is reacted with calcium minerals within the cement by-pass or kiln dust produced by the same plant without the need for purification.

The reaction occurs at atmospheric temperatures and pressures over 20-30 minutes and can be engineered so that a carbon negative lightweight aggregate is produced, through granulation of the fine grained dusts.

The technology is delivered in a containerised plant (known as the CO2ntainer) with a small footprint that is plugged directly into the flue stack of the cement plant without affecting the cement manufacturing process.

What role can your technology play when implemented in a carbon intensive industry like the cement industry?
The amount of carbon dioxide that is captured is limited by the amount of residue available, but the economics of our system means that a profit can be made for every tonne of CO2 captured without the need for subsidies, or large energy penalties or the use of expensive toxic chemicals such as amines. The process results in the sustainable management of an industrial residue that might otherwise be destined for landfill and produces a low carbon product for the construction industry reducing the need for the extraction of natural aggregate.

What is the impact of your technology on the productivity and cost of cement manufacturing?
The installation of our technology has no effect on the productivity of the cement plant, it has a low energy requirement and its installation adds to the bottom line of the cement production.

How does your technology impact the energy efficiency of a cement plant?
Because our technology operates at atmospheric temperatures and pressures, it has a low energy demand and does not have an impact on the efficiency of the cement plant.

How does your tech support the circular economy?
Carbon8’s technology produces a carbon negative, lightweight aggregate from an industrial residue, breaking the route to landfill disposal and producing a sustainable product for the construction industry that replaces the need for the extraction of natural virgin aggregate. On our website – www.carbon8.co.uk – we describe ourselves as a “circular impact company

What are the major challenges in implementation and execution of your technology?
Because the amount of CO2 captured is relatively small compared with large-scale, expensive carbon capture projects, it has been more challenging to demonstrate the economic and environmental benefits of deploying and operating our technology within the global cement industry. A Vicat cement plant in France has been using our CO2tainer since 2020, after successful trials with CRH in Canada and Hanson (now part of Heidelberg Cement Group) in the UK.

The variability of the waste streams that are available to Carbon8 also raises a challenge; every cement works is slightly different and demands a unique solution in terms of mix design for our process.

What innovations can the world expect from Carbon8 in the near future?
We are using AI to develop our process control to overcome the variability of the residues that are generated by the different hard-to-abate industries, and so facilitate the deployment of ACT solutions into other sectors, like Energy From Waste, biomass and steel.

Concrete

Jefferies’ Optimism Fuels Cement Stock Rally

The industry is aiming price hikes of Rs 10-15 per bag in December.

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Cement stocks surged over 5% on Monday, driven by Jefferies’ positive outlook on demand recovery, supported by increased government capital expenditure and favourable price trends.

JK Cement led the rally with a 5.3% jump, while UltraTech Cement rose 3.82%, making it the top performer on the Nifty 50. Dalmia Bharat and Grasim Industries gained over 3% each, with Shree Cement and Ambuja Cement adding 2.77% and 1.32%, respectively.

“Cement stocks have been consolidating without significant upward movement for over a year,” noted Vikas Jain, head of research at Reliance Securities. “The Jefferies report with positive price feedback prompted a revaluation of these stocks today.”

According to Jefferies, cement prices were stable in November, with earlier declines bottoming out. The industry is now targeting price hikes of Rs 10-15 per bag in December.

The brokerage highlighted moderate demand growth in October and November, with recovery expected to strengthen in the fourth quarter, supported by a revival in government infrastructure spending.
Analysts are optimistic about a stronger recovery in the latter half of FY25, driven by anticipated increases in government investments in infrastructure projects.
(ET)

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Concrete

Steel Ministry Proposes 25% Safeguard Duty on Steel Imports

The duty aims to counter the impact of rising low-cost steel imports.

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The Ministry of Steel has proposed a 25% safeguard duty on certain steel imports to address concerns raised by domestic producers. The proposal emerged during a meeting between Union Steel Minister H.D. Kumaraswamy and Commerce and Industry Minister Piyush Goyal in New Delhi, attended by senior officials and executives from leading steel companies like SAIL, Tata Steel, JSW Steel, and AMNS India.

Following the meeting, Goyal highlighted on X the importance of steel and metallurgical coke industries in India’s development, emphasising discussions on boosting production, improving quality, and enhancing global competitiveness. Kumaraswamy echoed the sentiment, pledging collaboration between ministries to create a business-friendly environment for domestic steelmakers.

The safeguard duty proposal aims to counter the impact of rising low-cost steel imports, particularly from free trade agreement (FTA) nations. Steel Secretary Sandeep Poundrik noted that 62% of steel imports currently enter at zero duty under FTAs, with imports rising to 5.51 million tonnes (MT) during April-September 2024-25, compared to 3.66 MT in the same period last year. Imports from China surged significantly, reaching 1.85 MT, up from 1.02 MT a year ago.

Industry experts, including think tank GTRI, have raised concerns about FTAs, highlighting cases where foreign producers partner with Indian firms to re-import steel at concessional rates. GTRI founder Ajay Srivastava also pointed to challenges like port delays and regulatory hurdles, which strain over 10,000 steel user units in India.

The government’s proposal reflects its commitment to supporting the domestic steel industry while addressing trade imbalances and promoting a self-reliant manufacturing sector.

(ET)

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Concrete

India Imposes Anti-Dumping Duty on Solar Panel Aluminium Frames

Move boosts domestic aluminium industry, curbs low-cost imports

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The Indian government has introduced anti-dumping duties on anodized aluminium frames for solar panels and modules imported from China, a move hailed by the Aluminium Association of India (AAI) as a significant step toward fostering a self-reliant aluminium sector.

The duties, effective for five years, aim to counter the influx of low-cost imports that have hindered domestic manufacturing. According to the Ministry of Finance, Chinese dumping has limited India’s ability to develop local production capabilities.

Ahead of Budget 2025, the aluminium industry has urged the government to introduce stronger trade protections. Key demands include raising import duties on primary and downstream aluminium products from 7.5% to 10% and imposing a uniform 7.5% duty on aluminium scrap to curb the influx of low-quality imports.

India’s heavy reliance on aluminium imports, which now account for 54% of the country’s demand, has resulted in an annual foreign exchange outflow of Rupees 562.91 billion. Scrap imports, doubling over the last decade, have surged to 1,825 KT in FY25, primarily sourced from China, the Middle East, the US, and the UK.

The AAI noted that while advanced economies like the US and China impose strict tariffs and restrictions to protect their aluminium industries, India has become the largest importer of aluminium scrap globally. This trend undermines local producers, who are urging robust measures to enhance the domestic aluminium ecosystem.

With India’s aluminium demand projected to reach 10 million tonnes by 2030, industry leaders emphasize the need for stronger policies to support local production and drive investments in capacity expansion. The anti-dumping duties on solar panel components, they say, are a vital first step in building a sustainable and competitive aluminium sector.

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