Displaying items by tag: Emissions

Egypt: Heidelberg Materials subsidiary Suez Cement has invested US$16m in upgrading its operations towards increased alternative fuel (AF) use since 2010. The producer uses AF in the burners and kilns of all three of its cement plants, at Helwan, Kattameya and Suez. Meanwhile, Suez Cement has invested US$60m in dust control measures over the same period. Other on-going investments include US$25m in the construction of a waste heat recovery (WHR) plant at the Helwan cement plant. The company is committed to reaching a 24% reduction in its CO₂ emissions between 2019 and 2030.

Technical director Omar Khorshid said “We are committed to pursue initiatives to broaden our range of innovative and eco-friendly building solutions, advance operational efficiency through digitalisation and strengthen customer engagement for better business results and more positive impact."

Philippines: Cemex Philippines (CHP) says it has reduced the CO₂ emissions from its subsidiaries, Solid Cement Corporation and APO Cement Corporation, by 50% between 1990 and 2022. From 2020 to 2022 CHP reduced its net CO₂ emissions by 18%. The company claims this is the highest CO₂ emissions reduction in the sector based on publicly released information.

Luis Franco, the president and chief executive officer of CHP, said "This milestone CO₂ reduction was possible because of our team's high commitment to achieve net zero. We are on track to meet our ambition of less than 430kg of net CO₂ per tonne of cement by 2030 and deliver net-zero CO₂ concrete by 2050." He added that the company is confident it can reach a 67% reduction by 2030 through the continued used of alternative fuels and decarbonated raw materials.

Ireland/UK: A six-month feasibility study conducted by Mannok at its Derrylin plant, in conjunction with Catagen, has found a number of ways that the cement producer can reduce its CO₂ emissions. Using Catagen’s HGEN renewable hydrogen generator with waste heat recovery could potentially decrease the cement plant’s annual CO₂ emissions by 7%. In addition the study found that using biohydrogen generation from waste biomass could generate larger volumes of hydrogen with less renewable energy required, compared to electrolytic hydrogen generation. Using Catagen’s BIOHGEN process in this way could minimise carbon intensity by a further 18%. A combined group of engineers from Mannok and Catagen worked on the project.

Kevin Lunney, operations director at Mannok, said “We are very excited to be working with the Catagen team, who have demonstrated a deep level of technical ability and competency during the feasibility work. I have no doubt that Mannok will derive significant value from the work already completed, with many new opportunities for collaboration now presenting that we would not have considered before. Achieving Net Zero is now the primary goal for our business and I expect Catagen will play a significant role in our achieving that goal, which we expect will have major benefits for the sector overall.”

In early April 2023 Mannok revealed that it had secured funding from the UK Government Green Energy Scheme to support its energy transformation programme. The first phase of the initiative, which the funding will support, is the generation of onsite green hydrogen to replace the use of diesel in over 70% of the company’s 150 heavy-goods truck fleet.

Belfast-based Catagen started as a testing company providing emissions data to the automotive sector. It has started working in other industrial sectors - such as cement, glass and steel in Europe and the US – as part of its ClimaHtech product range.

India: UltraTech Cement says that it has made a second deployment of GreenLine liquefied natural gas (LNG)-powered cement trucks in its cement operations. Indo-Asian News Service has reported that the new trucks will operate from UltraTech Cement’s Pune cement terminal in Maharashtra. GreenLine says that its LNG trucks have 28% lower CO₂ emissions than ordinary cement trucks, equating to reductions of 24t/yr per truck for UltraTech Cement.

The cement producer’s associate vice president Tanmay Pradhan said “We are dedicated to creating a sustainable future, and we are fully committed to collaborating with our partners and stakeholders to achieve our goal of a cleaner environment. Our association with GreenLine is a step forward in our ongoing efforts to decrease emissions, enhance energy efficiency, and promote sustainability."

Brazil: Votorantim Cimentos recorded specific CO₂ emissions per tonne of cement of 579kg/t in 2022, down by 3% year-on-year from 2021 levels and by 24% from its 1990 baseline.

The group achieved an alternative fuel (AF) thermal substitution rate of 27% in 2022, compared with 22% in 2021, marking strong progress towards its 2030 target of 53%. Meanwhile, its cement’s clinker factor fell to 74% from 75%, against a 2030 target of 68%.

Votorantim Cimentos’ global director of sustainability, institutional relations, product development, engineering and energy, Álvaro Lorenz, said “Fighting the negative effects of climate change is at the heart of our strategy and aligns with our focus on competitiveness and on creating a positive legacy for society. We continue to work to optimise our product portfolio, explore opportunities in the circular economy and develop new technologies. The improvements in our performance in 2022 reinforce our commitment and ongoing efforts to support the carbon neutral agenda.”

Mexico: Cemex has reviewed its global sustainability and financial performance during 2022 in its Integrated Report 2022. During the year, the group reduced its specific CO₂ emissions by 9% from 2020 levels and by 30% from 1990 levels. It achieved a target of US$1bn-worth of investment in strategic projects over a period begun in 2020. Projects included the execution of water optimisation plans at 20% of Cemex sites in high-water stress areas. Cemex co-processed 27Mt of waste as alternative fuel (AF) in its global cement production - 67 times greater than its own non-recyclable waste footprint - and achieved an AF substitution rate of 35%. Meanwhile, the group also reduced its cement's clinker factor to 74%. Its Vertua reduced-CO₂ concrete range accounted for 33% of its concrete sales. During the year, Cemex launched the world's first net zero, fully electric heavy concrete mixer truck.

In 2022, Cemex recorded sales of US$15.6bn, down by 12% year-on-year, and reduced its debt to US$408m.

France: Vicat and Materrup have formed a joint venture to industrialise production and accelerate marketing of Materrup's Clay Cement 1 (MCC1) raw clay cement. The Le Moniteur newspaper has reported that the technology is based on a precursor and activator mixture which removes the need for calcination of the clay. Materrup said that this halves MCC1 cement's CO₂ emissions compared with ordinary Portland cement (OPC).

The partners say that clay has better long-term feasibility than other alternative raw materials for cement production, because global reserves are currently 2Tnt.

Canada: A court has fined Lafarge Canada US$145,000 for a dust spill from its Bath, Ontario, cement plant in October 2019 that 'covered' homes, gardens and cars. The court found that the emission 'caused or was likely to cause adverse effects.' The Belleville Intelligencer newspaper has reported that the Canadian Ministry of Environment previously concluded that no harm to health resulted from the incident.

Plant manager Ignacio Arroyo said "Myself and our plant team unreservedly apologise for the upset and concern that our dust release has caused all of you. We intend to make it right and make sure it never happens again."

World: The United Nations (UN) has reviewed the progress of initiatives towards the reduction of mercury emissions from cement and other industries under its Environment Programme (UNEP). Mercury is sometimes present in the raw materials and fuel used in cement production. The sector currently emits 2220t/yr of mercury, 11% of global anthropogenic mercury emissions. The UNEP’s Cement Partnership Area aims to ensure ‘globally significant’ emissions reductions. Its priority actions include: establishing sectoral mercury inventories and baseline scenarios, encouraging techniques for the minimisation of mercury releases, increasing awareness in the industry, governments and regulatory bodies and supporting the development of policies in line with the Minamata Convention on Mercury.

The Cement Partnership Area said that it has achieved progress in expanding its cement plant mercury emissions management knowledge base and in reducing emissions. It called on governments to increase funding for projects, the development of new technologies and the publication of guidance documents.

Germany: The Science-Based Targets Initiative (SBTi) has validated Heidelberg Materials' new 2030 CO2 reduction targets. The targets have a base year of 2020 and conform to a 1.5°C climate change framework. Per tonne of cementitious material, the producer is now committed to reducing its Scope 1 CO2 emissions by 24%, its Scope 2 CO2 emissions by 65% and its Scope 3 emissions by 25%.

Heidelberg Materials' chief sustainability officer Nicola Kimm said “As reflected in our updated Sustainability Commitments 2030, climate action is a crucial element of Heidelberg Materials’ sustainability strategy. The SBTi validation shows that our sustainability agenda not only includes the most ambitious reduction target in the cement industry – but also a realistic, measurable plan in line with the 1.5°C scenario. We follow a clear, science-based approach, reducing our carbon footprint through the levers of product and process innovation and industrial-scale carbon capture, utilisation and storage. By closing the carbon and material loops, we will lead the sustainable transformation of our sector.”

In 2019, Heidelberg Materials became the first cement company to secure SBTi validation for its emissions reduction commitments.