Displaying items by tag: Emissions
Pakistan: Arif Habib Group plans to spend US$235m on upgrading its Power Cement plant in Nooriabad to 3.37Mt/yr from 0.9Mt/yr. The upgrade will be completed by the end of 2019, according to the Express Tribune newspaper. Company chairman Nasim Beg said that he was hoping to take advantage of growing cement demand in the country as the effects of the China-Pakistan Economic Corridor heighten.
Power Cement has also completed a US$3.4m upgrade to its filter bag house equipment by installing new equipment to reduce dust emissions. Company officials say the plant is now capable of reducing dust emissions to just 17mg/m3. This is below the 300mg/m3 level set by the Environment Quality Standards in Pakistan and the World Bank’s limit of 100mg/m3 for old cement plants.
UAE: Union Cement’s waste heat recovery project has been recognised by the Dubai Carbon Centre of Excellence (DCCE) for reducing CO2 emissions in Dubai in 2016. Local projects under the emirate’s Carbon Abatement Strategy achieved an emissions reduction of 419,500t of CO2 in 2016 saving nearly US$1.4m, according to comments made by DCCE to the Gulf Today newspaper. Other projects that contributed to the saving included the Dubai 13MW Photovoltaic Plant and Dewa Energy Efficient Chillers. The DCCE promotes Dubai’s transition to a low-CO2 green economy and is responsible for monitoring the levels of CO2 emissions in the Emirate.
US: Drake Cement has applied to the Arizona Department of Environmental Quality (ADEQ) to revise its air quality permit in order increase its clinker production at its Paulden plant by 10% to 0.73Mt/yr from 0.66Mt/yr at present. The cement producer is required to make the application as the increased production could increase its emission of particulate matter. The plant is also requesting a removal of the rolling three-hour clinker production rate limit of 83.3t/hr and an increase in the allowable hours of quarry crushing operation. The ADEQ will be holding a public hearing on the revision on 19 January 2017.
LafargeHolcim, ArcelorMittal, Evonik and Solvay form partnership to reduce carbon emissions across industries17 November 2016
Morocco: LafargeHolcim, ArcelorMittal, Evonik and Solvay have formed a Low Carbon Technology Partnerships Initiative across the steel, cement and chemicals industries. This new partnership will look at the potential synergies that exist between the manufacturing processes of these three energy intensive sectors, and how these synergies could be harnessed to reduce CO2 emissions.
As a first step, and following preliminary research, the innovative partnership will produce a study with the technical support of Arthur D Little to identify potential ways to valorise industrial off-gases and other by-products from their manufacturing processes to produce goods with a lower carbon footprint than through the fossil path. The preliminary research has already allowed identification of significant potential in selected trans-sector pathways.
The study is aimed at bringing a fact-based overview of carbon and energy sources from industrial off-gases (first at a European level), and evaluating the technical, environmental and economic feasibility of different Carbon Capture and Usage (CCU) pathways and their potential.
Initial findings from the first step already underway suggest that deploying cross-sector carbon capture and reuse opportunities on an industrial scale could reduce up to 3 GT/yr or 7% of global anthropogenic CO2 emissions. Existing conversion technologies that could be deployed across the three sectors could utilise by-products in the off-gases to create building materials, organic chemicals and fuel. Increased availability and greater access to renewable energy sources would significantly boost net carbon reduction efforts by those three sectors, within a supportive legislative framework. Cross sector carbon capture and reuse should also result in job creation, to be further investigated.
The study, carried out at European level, is building the ground for similar investigation extended at global level and paves the way for identifying and assessing industrial scale projects on CCU at the interface between the sectors.
“Concrete offers the highest level of life-cycle sustainability performance and we are continuously developing new products and solutions for a low carbon society. This new ambitious partnership will support our mission to cut our net emissions per ton of cement by 40% towards 2030 (versus 1990) and to develop and further deploy low carbon solutions for the construction sector. But to make this a reality, we will need an enabling regulatory framework and support for innovation,” said Bernard Mathieu, Head Group Sustainable Development of LafargeHolcim.
US: Holcim US has officially completed its US$96m upgrade project to its Hagerstown cement plant in Maryland. The two-year modernisation project has helped the plant to adhere to NESHAP environmental rules and has increased production capacity at the site by 0.2Mt/yr.
"A cornerstone of the regional community for 113 years, we recognise the importance of this facility to the Hagerstown community," said John Stull, chief executive officer of US cement operations for LafargeHolcim. "Our investment to modernise clinker production represents our continued commitment to our customers and local manufacturing. The facility will continue to be a strong and reliable partner to the community for many more years to come."
The upgrades to the plant should deliver a more than a 60% reduction to nitrogen oxides (NOx), approximately a 50% reduction to sulfur dioxide (SO2) and more than a 75% reduction to Particulate Matter (PM) emissions from the plant.
European Bank for Reconstruction and Development helps to reduce carbon emissions from the Egyptian cement industry29 September 2016
Egypt: The Egyptian cement industry could reduce its CO2 emissions by 2030 by following new recommendations in a report from the European Bank for Reconstruction and Development (EBRD). These recommendations have been published in the EBRD’s report, ‘Policy roadmap for a Low-Carbon Egyptian Cement Industry,’ which highlights the need for decisive and collaborative action by the industry’s stakeholders in order to achieve a reduction in CO2 emissions.
“Improving environmental standards in the cement industry and offering commercial incentives is realistic and vital for the profitability of the sector,” said Philip ter Woort, the EBRD Director for Egypt.
The roadmap outlines recommendations for policy actions from the Egyptian government that may provide effective incentives for the cement industry to improve its energy efficiency and to reduce CO2 emissions. The report points out that the potential for improvement is high despite that 50% of the Egyptian cement industry’s production capacity was built after 2000, and is using up-to-date equipment and clinker kilns that use best available technology (BAT).
Until 2014, the Egyptian cement industry, one of the most energy intensive industries in the country, had primarily used state-subsidised natural gas and heavy fuel oil to fire its cement kilns. However, following a gradual phasing out of the energy subsidies, Egyptian cement companies have switched to using high CO2 intensive fuels such as coal and petcoke.
The roadmap suggests that in order to reduce CO2 emissions, the industry should reduce the clinker content in cement, increase the use of alternative fuels, improve electrical energy efficiency and use more renewable sources of energy. Under one of the more ambitious scenarios, 2.2Mt/yr of coal will no longer have to be imported by 2030, saving about US$200m. Furthermore this would lead to a reduction in CO2 emissions to about 2% below the historic level prior to the fuel switch. In addition the cement industry could increase its usage of alternative fuels substitution.
The report was initiated by the EBRD, in cooperation with Egypt’s Ministry of Industry and Trade, the Egyptian Environmental Affairs Agency (EEAA), the Chamber of Building Materials Industries/Cement Industry Association (CBMI) and the Cement Sustainability Initiative (CSI) of the World Business Council for Sustainable Development (WBCSD).
Canada: Lafarge Canada has announced the completion of modernisation and environmental upgrades at its Exshaw cement plant in Alberta. The plant has increased its cement production capacity to 2.2Mt/yr from 1.3Mt/yr. Environmental improvements have led to a 60% reduction in sulphur dioxide emissions, a 40% reduction in nitrogen oxide emissions and a reduction in fugitive dust and noise coming from the plant's equipment. The plant has also achieved zero water discharge from its operations.
"It is an incredible achievement to comple a project of this scale. Completing it safely takes focus and energy and I applaud the team for its dedication to this goal," said René Thibault, President and CEO, Lafarge, Western Canada. "By all accounts we consider the project to be a success, cementing our long term commitment to Exshaw, Alberta and western Canada."
The upgrade consisted of shutting down the plant’s kiln four in November 2015. It modernised kiln five to meet new emissions targets by retiring less efficient gravel-bed filter technology. It then built a new production line, kiln six, with a baghouse to collect particulates, as well as a vertical raw mill, a EcoDome storage facility, a pre-heater tower and a vertical cement mill.
Construction at the plant began in 2013, with more than 600 contracted employees on site at the peak of construction activity in addition to 160 permanent employees. The team achieved nearly three million hours without a lost time incident.
US: The Environmental Protection Agency (EPA) and the Department of Justice (DOJ) have agreed a settlement with Cemex, under which the company will invest approximately US$10m to cut air pollution at five of its cement plants to resolve alleged violations of the Clean Air Act. Under the consent decree lodged in the District Court for the Eastern District of Tennessee, Cemex will also pay a US$1.69m civil penalty, conduct energy audits at the five plants, and spend US$150,000 on energy efficiency projects to mitigate the effects of past excess emissions of nitrogen oxides (NOx) from its facilities.
“This settlement requires Cemex to use state-of-the-art technology to reduce harmful air pollution, improving public health in vulnerable communities across the South and Southeast,” said Cynthia Giles, Assistant Administrator for EPA’s Office of Enforcement and Compliance Assurance. “EPA is committed to tackling clean air violations at the largest sources, cutting the pollutants that cause respiratory illnesses like asthma.”
The five Cemex cement plants affected by the deal are located in Demopolis in Alabama, Louisville in Kentucky, Knoxville in Tennessee and New Braunfels and Odessa in Texas. The Knox County, Tennessee and Louisville, Kentucky air pollution control authorities participated in this settlement. Cemex is required to install pollution control technology that will reduce emissions of NOx and establish strict limits for sulphur dioxide (SO2) emissions. The cement producer will install and continuously operate a selective non-catalytic reduction system for controlling NOx at the five plants and meet emission limits that are consistent with the current best available control technology for NOx. EPA estimates this will result in NOx emissions reductions of over 4000t/yr. Each facility will also be subject to strict SO2 emission limits.
This settlement is part of EPA’s National Enforcement Initiative to control harmful emissions from large sources of pollution, which includes cement plants, under the Clean Air Act’s Prevention of Significant Deterioration requirements. The total combined SO2 and NOx emission reductions secured from cement plant settlements under this initiative will exceed 75,000t/yr once all the required pollution controls have been installed and implemented.
The settlement is subject to a 30-day public comment period and final court approval.
US: The Oregon Department of Environmental Quality (DEQ) is working with Lehigh Cement to investigate a potential source of hexavalent chromium (chromium six) emissions from a cement terminal in Portland. The environmental agency suspects that cement dust may be a contributing source of chromium six that it has monitored since March 2016 in southeast Portland. The DEQ is working with the cement company to improve its dust-capturing efforts when unloading cement from railcars.
“We're concerned about the persistence of elevated levels of chromium,” said Pete Shepherd, interim DEQ director. “We are making every effort to bring those levels down.” The DEQ has also required a nearby glass manufacturer to clean its exhaust stacks to tackle the problem.
Germany: HeidelbergCement has released its seventh Sustainability Report so far. Highlights from the report include a reduction of specific net CO2 emissions by 22% to 606kg/t of cement (compared to 1990 levels) and a decreased clinker factor of 75%. However, specific emissions for NOx, SO2 and mercury all rose slightly from 2014.
“The numbers show what kind of progress HeidelbergCement made in 2015,” said Bernd Scheifele, CEO of HeidelbergCement. “We have also substantially intensified our commitment to the development of technologies to use CO2 as a resource, and we have entered into very promising cooperative research projects. This puts us at the forefront of the movement in the cement industry.”
The 2015 report is also the first to present data on water management, following the implementation of industry indicators for water reporting at all cement plants in 2013 and 2014.