Displaying items by tag: Emissions

Mexico: Cemex has launched a new brace of CO₂ emissions reduction targets. The group is now targeting CO₂ emissions below 475kg/t of cement and 165kg/m3 of concrete by 2030. These represent decreases of 40% and 35% respectively compared to 1990 levels. The group plans to invest US$60m/yr in efforts to meet its 2030 targets. It had previously targeted CO₂ emissions below 520kg/t of cement by 2030. It now aims to achieve the previous target by 2025. The group says it intends to reach the new targets through the use of alternative fuels with high biomass content, hydrogen injection, low temperature and low CO₂ clinker, decarbonated raw materials, optimisation of the kilns’ heat consumption and the reduction of clinker factor through the higher utilisation of blended cements in the market.

Chief executive officer Fernando Gonzalez said, “Climate action is the biggest challenge of our times, and Cemex is taking decisive action to address it. We commit to continue leading the industry in climate action.”

Spain: The total CO₂ emissions of cement and clinker production in Spain fell by 14% year-on-year in 2020. The El Economista newspaper has reported that a report by the Sustainability Observatory recorded that 10 Spanish companies were responsible for emitting 51Mt of CO₂ in 2020 or 56% of the national total.

US: Italy-based Buzzi Unicem subsidiary Lone Star Industries has concluded a settlement with the US Department of Justice, the Environmental Protection Agency and the state of Indiana over Clean Air Act violations at its integrated Greencastle plant in Indiana, dating from 2010 to the present day. The Indy Star newspaper has reported that under the terms of the settlement the producer must pay a fine of US$700,000. The authorities ordered the company to upgrade the plant in line with state and federal pollution regulations. The violations involved emissions of particulate matter that exceeded state and federal limits.

Australia: Adbri says it wants to achieve net zero carbon emissions by 2050 as part of its commitment to a low carbon future. The board and management team are assessing medium and long term emissions reduction options and are intend to release a roadmap by the 2022 annual general meeting. Adbri set its current emissions reduction target in 2019, to deliver a 7% reduction in its greenhouse gas emissions by 2024 against 2019 baselines. In 2020 it achieved 2.3% reduction.

“We recognise that process emissions from the production of cement and lime are not easy to abate. Adbri is committed to maintaining its sector leadership position in sustainability by continuing to increase its use of renewable energy, alternative fuels and supplementary cementitious materials. Developments in technology and partnership with industry, government and research institutions will be critical as we deepen our understanding of long term emission reduction options. This will form part of our roadmap toward net zero by 2050,” said Adbri’s chief executive officer Nick Miller.

US: The Texas Commission on Environmental Quality has approved a request by Holcim US to use more petcoke at its integrated Midlothian plant. Local health and environmental campaigners had hoped to challenge the decision at a meeting in late March 2021, according to the Fort Worth Star-Telegram newspaper. The changes will enable the company, part of Switzerland-based LafargeHolcim, to more than double the plant’s carbon monoxide (CO) emissions to 7000t/yr. 35 local residents submitted requests for a hearing to query the application. Holcim US was identified from state data as the leading emitter of industrial pollutants in North Texas in 2019.

Switzerland: Dürr is supplying a regenerative thermal oxidation system (RTO) to Jura Cement Fabriken integrated plant in Wildegg as the main stage in its air pollution control system. The upgrade is intended to enable the cement producer to comply with anticipated lower gas emission limits for carbon monoxide, hydrocarbons, and ammonia (NH₃). The supplier says its solution combines Dürr’s Ecopure RTO multiple-chamber principle with an optimisation of the existing process technology in the calciner. It is scheduled to start operation in 2022.

Jura Cement operates two integrated plants in Switzerland. It is part of the Switzerland-based Jura Materials Group, which has been part of the Ireland-based CRH since 2000.

Spain: The Spanish cement association Oficemen has targeted a 43% emissions drop by 2030 across its entire value chain compared to 1990 levels. The objective has been published as part of the association’s sustainability roadmap to 2050. It is a tightening of the previous target of 27% by 2030. Oficemen intends to meet the tougher reduction by using the so-called 5C approach - clinker, cement, concrete, construction and built environment, and (re)carbonation – as detailed by Cembureau, the European Cement Association. Oficemen also revealed that it is working with the Spanish Technological Platform for CO₂ (PTECO₂) on identifying potential locations for storing captured CO₂. Hugo Morán, Secretary of State for the Environment, participated remotely with the launch event.

Oficemen also reports that Spanish cement consumption fell by 12% year-on-year to 12.2Mt in the first 11 months of 2020. Exports declined by 5%.

India: The Tamil Nadu Pollution Control Board (TNPCB) has fined ACC subsidiary Madukkarai Cement US$61,000 for fugitive emissions of clinker and cement dust in mid-2020. The Hindu newspaper has reported that inspections found dust in the village Kurumbapalayam, Coimbatore District, located on the eastern side of the cement plant. An ambient air quality survey in September 2020 revealed higher-than-prescribed particulate volumes.

In addition to paying the fine, the producer must comply with 19 instructions of the TNPCB for air pollution control and monitoring by 7 January 2021.

Italy: The Italian cement and concrete association Federbeton says that investments in sustainable technologies in domestic cement production totalled Euro110m between 1 January 2017 and 31 December 2019. This reduced carbon dioxide (CO₂) emissions by 311,000t in 2019 alone, up by 12% year-on-year from the reduction in 2018. An increased alternative fuel (AF) substitution rate of 6.7% in 2019 contributed to the reduction, up by 0.7% from 6.6%. Producers’ full-year AF consumption was 1.6Mt.

Zimbabwe: The Environmental Management Agency (EMA) has ordered Lafarge Cement Zimbabwe to stop operations at its integrated Harare plant due to abnormal dust emissions. As part of the order the plant has been requested to notify local stakeholders and the community of any new developments or incident that may affect them, according to the NewsDay newspaper. It will also be required to report daily dust emissions readings to the EMA every two weeks.

The cement producer said it experienced an unexpected surge in dust emissions during a trial of using saw dust as an alternative fuel at the plant between July 30 and 1 August 2020. It added that immediate action was taken to control and contain the emissions and the incident was reported to EMA in line with regulatory requirements.