Displaying items by tag: Tyres

Russia: Holcim Russia has committed to realising a 15% CO₂ emissions reduction in its cement production between 2019 and 2030 to 475kg/t from 561kg/t. It plans to further reduce its cement’s CO2 emissions to 453kg/t by 2050, and to implement further measures to ensure its net carbon neutrality at that time.

Corporate relations director Vitaly Bogachenko said “The company's goal is to drastically reduce carbon emissions, and there are two working solutions for this. The first is the use of alternative fuels (AF) obtained from different types of waste: residues of municipal solid waste after sorting and extraction of all useful fractions from them, used tyres and others. The presence of biomass in them makes such fuels carbon neutral, so emissions during production are significantly reduced. The second solution is to replace carbon intensive raw materials. For example, instead of limestone, we use slags. The 'recipe' for cement is completely different: thanks to the new composition and the lower temperature during the firing process, the carbon footprint in the production of cement is reduced.”

Ireland: The Environmental Protection Agency (EPA) has postponed a four-day hearing over Irish Cement’s alternative fuel (AF) licence application, scheduled for May 2020, to an as yet unspecified date due to the coronavirus. Under the terms of the proposed licence, Irish Cement will be able co-process a maximum of 90,000t/yr of refuse-derived fuel (RDF), including tyres, in the single dry line of its 1.0Mt/yr Mungret plant in County Limerick. The EPA said that emissions from operations under the terms of the licence ‘will meet all required environmental protection standards.’

Irish Cement received its preliminary licence to burn refuse-derived fuel (RDF) in September 2019. The move attracted local resistance, with 4500 people participating in a protest on 5 October 2019.

The EPA has said that it will give all relevant parties notice ‘well in advance’ of the date of the rescheduled hearing, which will take place after the government lifts the country’s coronavirus lockdown. On 14 April 2020 County Limerick had 234 coronavirus cases out of an Irish total of 10,647.

Cuba: State-owned Cementos Cienfuegos has started to burn waste tyres in order to save on imported petcoke costs. Cuba is suffering a coal shortage due to reinforced economic sanctions led by the US.

The plant is using 130-150 tyres per day as part of a project that, in its initial phase, makes it possible to replace 5% of its petcoke requirements. Plant manager Ernesto Gálvez, explained the plant eventually aims to burn 400 tyres per day.

Oman: Oman Environmental Services Holding Company (Be'ah) has signed an agreement with Oman Cement Company, in which Be'ah will supply expired tyres to the cement producer for use as an alternative fuel.

The agreement was signed by Eng Tariq bin Ali al Amri, CEO of Be'ah, and Eng Salem bin Abdullah al Hajri, CEO of Oman Cement Company. Eng Hajri reported that the agreement will contribute to the national economy, diverting 30,000t of waste tyres from landfill.

Spain: Brazilian-based Votorantim Cimentos’ subsidiary Cementos Cosmos has received authorisation for the combustion of tyres to fuel the kilns at its 1.6Mt/yr Toral de los Vados plant in León. Diario del León has reported that the government of Castile and León will complete bureaucratic procedures finalising the permit before 25 December 2019.

Sweden: Conveyor belts supplied by Germany’s Continental are being used in the Förbifart Stockholm road infrastructure project. HeidelbergCement’s aggregate company Jehander is using Continental steel cord conveyor belts at its Löten quarry near Stockholm to allow rubble from tunnelling to be reused for road construction. In addition, drilling machines from Epiroc are using Continental DrillMaster tyres to provide high cut resistance, good traction and stability.

Overall, around 5.5Mt of rock will be extracted to build the tunnels required for the new bypass. A series of conveyor belt systems are being used to transport the extracted rock to three temporary ports that have been set up for the project. The rubble is taken across the waterways by inland vessels from the construction site in Stockholm to Löten. The rubble is then reused as concrete, mostly for road construction, or it used for local construction.

Spain: Cementos Cosmos has stated its intention to ask the Castilla León Board for permission to burn tyres in the kiln at its plant in Oral Sarriana. The move has already been met with resistance from the local Bierzo Aire Limpio platform, which has raised concerns about the effects of tyre burning on the local agricultural sector as well as ‘the alarming rates of contamination, cancer and premature deaths in a region closed in by mountains.’

This is despite the plant already having permission to burn paper and plastic waste. The increase in alternative fuels, ideally up to a 70% thermal substitution rate, is intended to reduce the plant’s dependence on fossil fuels.

Canada: As it awaits industrial approval from the Province to burn tyres at its Nova Scotia cement plant, Lafarge Canada says it has spent US$830,000 to install emissions monitoring systems. The company says its new equipment measures plant emissions such as sulphur dioxide, nitrogen oxides, carbon monoxide, carbon dioxide, oxygen, and total hydrocarbons every 10 seconds.

Rob Cumming, Lafarge's environment director, says the company's proposed one year pilot project at its Brookfield plant will allow it to gather the scientific evidence needed to assure the public that it is safe to use scrap tyres as a replacement for coal.

In October 2017, the Environment Department said it was reviewing the company's application and would make a decision on the project within 60 days. The project has drawn criticism from residents near the plant, environmental groups and Nova Scotia's NDP, which has called on the Liberal government to ban tyre burning.

Canada: The New Democratic Party has called for a ban of burning tyres in Nova Scotia. The opposition political party held a news conference with opponents of the government's decision in July 2017 to approve a one-year pilot project allowing Lafarge Canada to burn tyres for energy at the company's Brookfield cement plant, according to the Canadian Press newspaper. No tyres have been burned at the plant so far as the cement producer waits for industrial approval of the project from the provincial government.

Mark Butler of the Ecology Action Centre said the government’s decision was based on a Dalhousie University engineering study that was too narrow in its focus and wasn't peer reviewed. However the government has said that it used several technical studies to inform its decision. A group of local residents also started legal action in August 2017 on the grounds that the project violated the province's Environment Act.

Canada: Lafarge Canada has started a partnership with Dalhousie University researcher Mark Gibson to test tyre-derived fuel on an industrial scale at the Brookfield cement plant in Nova Scotia. Working under a Natural Sciences and Engineering Research Council of Canada (NSERC) Discovery Grant, this initiative will research the adoption of low carbon fuels in the cement industry. The research will continue the partnership between Lafarge Canada and Dalhousie's Faculty of Engineering.

"My students and I are very pleased to see this work enter the real world. Based on our research, we expect to see significant reductions in greenhouse gas emissions from the Brookfield cement plant and thereby help Nova Scotia move one step closer to a low carbon economy," said Gibson. He added that the use of tires will also reduce NOx emissions. In 2015, Gibson and his team published a report entitled ‘Use of scrap tyres as an alternative fuel source at the Lafarge cement kiln, Brookfield, Nova Scotia.’

Due to different initiatives including previous work with Dalhousie's Faculty of Engineering, the Brookfield plant has substituted alternative fuels for conventional ones by using front-end burner injection in its kiln. The plant is expected to reach a substitution rate of up to 30% by the end of 2016. Following the test using tyres the cement producer expects to use 15% of its fuel requirements from 450,000 tyres per year, or just under half the amount of tyres generated in Nova Scotia. The project proposal will be explained in further detail at a Public Meeting planned for 20 October 2016 in Brookfield.