Concrete

Many industries have limited options to decarbonise

Published

4 years ago

October 13, 2022

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In the light of the recent announcement by NTPC of using Carbon Clean’s CDRMax™ carbon capture technology, Prateek Bumb, Co-Founder & CTO, Carbon Clean Solutions Limited, discusses their technology and its impact on industrial decarbonisation.

Tell us about the design and carbon capture power of the NTPC Power Plant by Carbon Clean.
The carbon capture plant is designed to capture 20 tonnes of carbon dioxide (CO2) per day, from the flue gas of Unit-13 of the Vindhyachal Super Thermal Power Station. The CO2 will eventually be combined with hydrogen to produce 10 tonnes per day of methanol through a catalytic hydrogenation process.
Carbon Clean’s CDRMax™ carbon capture technology is being used for this demonstration project, which is the first step toward decarbonising the power plant. The objectives of the project are to review the economics, design optimisation and waste heat utilisation, in order to further reduce the overall cost of carbon capture and utilisation. Evidence suggests that it will be both feasible and cost-effective, by using our carbon capture technology – CDRMaxTM.

What is the key technology backing the power plant?
Carbon Clean’s CDRMax™ carbon capture technology can be used with point source gases that contain CO2 concentrations between 3 per cent and 25 per cent by volume and produces CO2 with purities greater than 99 per cent, which can then be sold, reused or sequestered.
The CDRMax™ process uses Carbon Clean’s proprietary solvent, process equipment design, and advanced heat integration to significantly reduce both capital and operating costs. Due to an extremely low rate of corrosion, smaller equipment, and other improvements, CDRMax™ has been proven to provide a 20 per cent CapEx reduction compared to other available solutions. Thanks to lower heat and energy demand, CDRMax™ reduces OpEx by 30 per cent to 40 per cent compared to other available carbon capture solutions.

Tell us about the disposal of the captured carbon.
Carbon utilisation or storage at industrial plants is determined on a case-by-case basis. For example, the carbon captured at the St Fergus Gas plant will be transported and permanently stored offshore, as part of the Acorn Project. Meanwhile, in a project with Tuticorin Alkali Chemicals & Fertilizers Limited, India, the captured carbon is converted to soda ash and sold to Unilever, which uses it to manufacture cleaning products.

What impact is Carbon Clean planning to make on industrial decarbonisation?
Heavy industry accounts for around 30 per cent of global carbon emissions. Many industries – such as cement, steel, and refineries – have limited options to decarbonise. Point source carbon capture offers these industries a means of tackling their emissions and it is available now.
Carbon Clean is leading innovation in point source carbon capture and addressing the barriers to mass deployment, which have mainly been the cost and space requirements to install the technology.
Our latest fully modular carbon capture solution, CycloneCC, overcomes these barriers. CycloneCC has a footprint that is up to 50 per cent smaller than conventional carbon capture units and it will be deployable in less than eight weeks. It also has the potential to reduce CapEx and OpEx by up to 50 per cent and drive down the cost of carbon capture to $30/tonne on average, which would make the economic case for carbon capture undeniable.
This latest innovation, alongside Carbon Clean’s recent funding round, puts the company on track to deliver industrial decarbonisation on a gigatonne scale by the mid-2030s.

How do you picture your contribution to the Indian industrial economy›s goal to reach net zero by 2070?
Outside of the project with NTCP, Carbon Clean is working with Tata Steel and Tuticorin Alkali Chemicals & Fertilizers in India. We also have a joint venture with Veolia – Veolia Carbon Clean – that is committed to reducing industrial carbon dioxide emissions and helping India achieve its climate goals through the development of a series of carbon capture and compressed biogas (CBG) projects.
Looking forward, achieving net zero in India, will require a collaborative effort between hard-to-abate sectors, government and technology providers, such as Carbon Clean.

–Kanika Mathur

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Concrete

India’s Cement Sector Cuts Energy Use, but Worker Safety Worsens

iFOREST finds efficiency gains alongside water and safety concerns

Published

8 hours ago

November 2, 2026

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India’s cement sector has improved its energy and carbon efficiency, but rising groundwater use in water-stressed regions and deteriorating worker safety remain significant concerns, according to a report by the International Forum for Environment, Sustainability & Technology (iFOREST). The findings also highlighted weak policy implementation and gaps in sustainability reporting.

India, the world’s second-largest cement producer, uses about 2.54 gigajoules of energy per tonne (GJ/t), below the global average of 2.88 GJ/t. However, renewable sources accounted for only 5.1 per cent of the sector’s energy mix, indicating continued dependence on conventional sources.

The report assessed 18 cement companies against 107 Business Responsibility and Sustainability Reporting indicators for FY24 and FY25. The companies covered 87 per cent of India’s cement production. Carbon emissions intensity declined from 0.58 to 0.57 tonnes of carbon dioxide per tonne, but total emissions increased 4 per cent to 224.3 mn t, equivalent to about 6 to 7 per cent of India’s overall emissions.

Overall water withdrawal declined 9.5 per cent during the study period, while withdrawals in water-stressed areas, mainly in Rajasthan, increased by more than 20 per cent. Groundwater’s share of withdrawals in these areas rose from 27 per cent to 38 per cent, raising concerns about the sector’s impact on vulnerable water resources.

The sector employs about 228,000 people, including 63 per cent contractual workers, 3.1 per cent women and 0.07 per cent persons with disabilities. Women in key managerial roles earned 26.8 per cent less than men, while median pay for women workers fell 11.1 per cent in FY25 as men’s pay increased. Worker injuries rose 36.5 per cent to 359, and fatalities increased from 17 to 22, with workers accounting for more than 90 per cent of deaths.

iFOREST recommended cement-specific reporting guidance, standardised metrics, mandatory production disclosure and third-party verification. It also called for environmental, social and governance policies to be integrated into business strategies and implemented more effectively on the ground.

Concrete

Ambuja Cements Expects Volume Growth to Outpace Industry in H2

Ambuja Cements sees stronger trade and institutional demand in H2 FY27.

Published

8 hours ago

November 2, 2026

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Ambuja Cements expects its sales volumes to grow faster than the cement industry during the second half of fiscal year 2027, as it seeks a recovery in institutional demand after a weak first half. The Gautam Adani-owned company is aiming to rebuild volumes while protecting profitability.

The company reported a 90 per cent year-on-year decline in consolidated net profit attributable to owners of the parent to Rs. 1.93 bn for the quarter ended 30 September, from Rs. 17.74 bn a year earlier. The previous year’s profit included a reversal of income-tax provisions worth Rs. 16.97 bn. Revenue from operations rose marginally to Rs. 91.66 bn from Rs. 91.3 bn.

Trade volumes increased 8.6 per cent year-on-year in the September quarter, but weaker institutional sales left overall volumes broadly unchanged. Ambuja Cements expects both trade and institutional sales to turn positive in the third and fourth quarters. Trade sales are made through dealers and distributors, while institutional or business-to-business sales involve bulk supplies to infrastructure developers, government projects and real estate companies.

The company had earlier reduced institutional sales that did not generate adequate returns. It now plans to rebuild the business selectively, while continuing to prioritise trade sales and higher-value products. Trade accounted for 74 per cent of sales in the quarter, up six percentage points from a year earlier, while premium products increased to 37 per cent of trade sales from 35 per cent. Blended cement’s share rose to 82 per cent from 77 per cent.

Ambuja Cements commissioned 4.6 mn t of capacity during the quarter. Another 3.2 mn t at Bathinda in Punjab and Jodhpur has stabilised, with the facilities expected to ramp up in the second half. A further 2.4 mn t facility at Varkala in Bihar is scheduled for commissioning during the period. Higher fuel and logistics costs remain a challenge, while the company has realised a cement price increase of about Rs. 10 per bag in October and is targeting operating costs of Rs. 4,250 per t for the full year.

Concrete

JK Lakshmi Cement Begins Rs 110 Billion Assam Plant Project

The 2.5 MTPA integrated cement plant is expected to be completed by FY2029.

Published

2 days ago

October 31, 2026

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JK Lakshmi Cement has recently laid the foundation stone for Project Kamakshi, its first integrated cement manufacturing facility in Assam, marking its entry into Northeast India. The groundbreaking ceremony was held at Umrangso village in Dima Hasao district in the presence of Assam Chief Minister Himanta Biswa Sarma.

The project involves an investment of Rs 110 billion, including the mining lease, and will have an annual cement production capacity of 2.5 million tonnes, supported by a 1 million tonne clinkerisation unit. Scheduled for completion by FY2029, the facility is expected to generate employment for over 2,000 people while catering primarily to the growing Northeast market.

The integrated plant will feature dedicated railway sidings to facilitate efficient transportation of raw materials and finished cement, strengthening supply chain reliability and regional distribution.

Vinita Singhania, Chairperson and Managing Director, JK Lakshmi Cement, said, “”Project Kamakshi is the start of a long-term relationship with Assam and the wider North East. This is a region that is building fast, and it deserves quality cement made close to home. With this plant, we want to bring scale, jobs, and dependable supply to the region. At JK Lakshmi Cement, we believe that building a stronger India goes beyond infrastructure. It is also about growing together with the communities we serve.””

The investment aligns with the company’s strategy to expand into high-growth markets beyond its established presence in Northern, Western and Eastern India. The project is also expected to support regional economic development and infrastructure growth.

JK Lakshmi Cement aims to pursue its expansion plans while working towards its long-term target of achieving net-zero emissions by 2047.