Displaying items by tag: Alternative Fuels

Canada: Lafarge Canada and Geocycle Canada have successfully completed a pilot at the Lafarge Brookfield cement plant in Nova Scotia to produce clinker using recycled minerals from discarded material. This pilot can potentially cut CO₂ emissions by 60% of clinker. The new clinker product will be used to produce recycled cement in 2024.

CEO of Lafarge Canada David Redfern said "Our teams have been tirelessly working towards finding solutions to decarbonise our business in Canada. This new recycled-minerals clinker combines operational excellence with circular construction, building new and green from what is considered old and waste. This is a great example of how far we can go - the local team at Brookfield is certainly setting the tone for the industry in Canada."

Since May 2023, Lafarge Canada, Geocycle Canada and the Holcim Group Innovation Centre have been collaborating on a 100% circular production of clinker at the Brookfield plant. The new production method involves substitution of raw materials with lower carbon options from discarded materials, as well as alternative fuels produced from these materials. The trial was performed in February 2024 and cement from this clinker will be produced in 2024 for further testing and development of the technology.

Jamaica: Caribbean Cement is allocating US$8m, 20% of its planned US$40m investment in 2024, to increase sustainability efforts at its Rockfort plant. The company is aiming to become net-zero by increasing its use of alternative fuels and repurposing materials like tyres, which will also help to save on operational expenses and fuel costs, according to the company.

The repurposing of tyres, which commenced following a Government of Jamaica partnership, will remove a ‘significant’ portion of the estimated 1.5m tyres at the country’s Riverton dump, along with other materials such as pallets, which Caribbean Cement now uses as alternative fuel sources in the cement manufacturing process. With the help of its XRC3000c shredder obtained from Austria-based company UNTHA, Caribbean Cement said it has shredded more than 9000 tyres to date.

Managing director Jorge Martínez said “At the moment our first goal for the end of 2024 is to at least reach 10% alternative fuels. We will remove some of those fuels that are not renewable, substituting it with ones that are. This is part of our future in action programme. Some of these actions are also related to the reuse of some materials in the plant as we take waste materials from other industries and beach clean-ups for repurposing. We try to reuse them in any way we can.”

US: Cemex, in collaboration with the Mission Possible Partnership (MPP) and supported by the Bezos Earth Fund, is undertaking an analysis of decarbonisation strategies at its Balcones cement plant in Texas, US. This initiative is part of Cemex's broader goal to achieve net-zero CO₂ emissions by 2050. The analysis will explore various technological pathways including the use of alternative fuels, incorporation of lower-carbon materials, carbon capture and storage and the utilisation of captured carbon for producing synthetic fuels, chemicals, or construction materials. The partnership focuses on innovations such as substituting traditional fossil fuels with waste, renewable gas, biomass, hydrogen and electrification in the cement production process.

CEO of Cemex, Fernando González said “Our collaboration with the Mission Possible Partnership represents a joint effort seeking to accelerate our sustainable commitments and comprehensively evaluate the extent to which we can utilise decarbonisation levers within a specific plant ecosystem. This involves leveraging scalable technologies that would contribute to achieving our ambitious decarbonisation goals on the path to becoming a net-zero company by 2050.”

Denmark: M&J Recycling has appointed René Normann Christensen as its new CEO, effective immediately. Christensen brings extensive leadership from previous CEO roles at Kohberg Bakery Group, engineering firm Glunz & Jensen and circular food packaging producer Plus Pack. He has a degree in Finance from Syddansk Universitet.

M&J Recycling says that Normann Christensen’s appointment marks a strategic step towards the company's next growth phase. It thanked previous CEO Uffe Hansen for his ‘tremendous job’ in building a new, resilient organisation, ready for future growth.

ChairCarsten Knudsen said “After a successful carve out from Metso in 2021, M&J Recycling has now reached a point on the growth journey where it is necessary to change focus and increase momentum. There is a significant global potential for M&J’s industrial waste shredders, and I am confident that René Normann Christensen will, as the new CEO, strengthen the organisation and take M&J Recycling to the next level.”

Australia: Cement Australia has received a US$34.4m federal grant for a kiln upgrade to its Railton cement plant in Tasmania. The upgrade will allow the plant to raise its alternative fuels substitution rate. The project is funded by the government’s Powering the Regions initiative, with total investments valued at US$215m.

Australian Minister for Climate Change and Energy Chris Bowen said “This US$215m investment in Australia’s hard-to-abate manufacturing and mining facilities is about securing the future of high-quality, low-emissions products made right here. Northern Tasmania, Central Queensland and Western Australia have been industrial powerhouses for generations, and the government is ensuring that continues. As global markets change rapidly, we’re supporting Australian industry to not only survive but thrive with our world-class products that support regional jobs across the country.”

Pakistan: On 18 April 2024, the Sustainable Development Policy Institute (SDPI) and the Policy Research Institute for Equitable Development (PRIED) launched two studies focusing on the decarbonisation of Pakistan's cement sector. The initiative focuses on collaboration and technology sharing to reduce the industry's carbon footprint.

Professor Muhammad Fahim Khokhar from the National University of Science and Technology (NUST) said "The global CO₂ emissions released from the cement sector are 37.4Gt, which is rising at 1.1% per year."

The study by PRIED and NUST showed a 30% increase in cement sector CO₂ emissions in 2020 relative to 1990-2000, reaching 49.6Mt/yr. The study proposed strategies for cement sector decarbonisation, such as alternative fuels, clinker substitution, renewable energy, process electrification, energy efficiency and carbon capture technologies.

According to researcher Saleha Qureshi, the major challenge for decarbonisation is that cement industries in Pakistan rely on over 65% coal in the calcination process. Other challenges identified were lack of regulatory and policy support, absence of performance-based standards, high transition cost and limited incentive available for the transition.

Colombia: Cementos Argos and Sistema Verde have collaborated to transform nearly 27t of waste from the Estéreo Picnic music festival in Bogotá on 21 – 24 March 2024 into alternative fuel for Cementos Argos' Cartagena plant. The initiative, which includes converting materials such as plastics and cardboard into fuel, aligns with Cementos Argos’ aim to reduce fossil fuel use and CO₂ emissions per tonne of cement by 29% by 2030.

Mauricio Giraldo, director of alternative resources at Cementos Argos said "We are very pleased to be part of this alliance with which we join the global need to join efforts to make an adequate use of waste in a safe, controlled and clean manner. Our goal as a company is to dispose of more than 300,000t/yr of waste, and with actions like this, we continue to contribute to achieving this goal.”

Thailand: Saraburi, which houses Thailand’s key cement plants, is expected to start converting waste to energy in a project led by the Thai Cement Manufacturers Association (TCMA). TCMA has developed a pilot project to create ‘ignitable waste pallets’, which will replace imported coal in cement production, according to TCMA chair Dr Chana Poomee. The process involves using waste from mining, cement plants and local communities to produce fuel, focusing on waste that cannot be reused or recycled.

Seven cement plants are located in the Tan Diao subdistrict due to its proximity to limestone mountains essential for cement production. The province is facing a growing waste management problem, owing to urbanisation and the expansion of agribusiness in the area. ‘Saraburi Sandbox’ project, a public-private-people partnership (PPP), seeks to address these issues.

Kittipong Promwong, president of the National Higher Education, Science, Research and Innovation Office, believes the Saraburi Sandbox is crucial to the government's commitment to lowering CO₂ emissions.

The US Department of Energy (DOE) announced a US$1.6bn investment in the cement sector this week. The funding was part of a total of US$6bn for 33 projects in over 20 states to decarbonise energy-intensive industries also including chemicals and refining, iron and steel, aluminium and metals, food and beverages, glass, process heat applications and pulp and paper. The DOE was keen to link the money to “the President’s Bipartisan Infrastructure Law and Inflation Reduction Act.” Politics is never far away it seems! The projects are part of the Industrial Demonstrations Program, managed by DOE’s Office of Clean Energy Demonstrations (OCED).

Table 1: Summary of US Department of Energy funding announced on March 2024 to decarbonise cement and concrete production

Table 1 above shows the main approaches each of the projects aim to use. The two most expensive ones involve carbon capture and sequestration (CCS) at Heidelberg Materials US’ Mitchell cement plant in Indiana and National Cement’s Lebec plant in California respectively. In a complimentary press release Chris Ward, the CEO of Heidelberg Materials North America, said “This substantial federal funding investment will help create the first full-scale deployment of carbon capture and storage on a cement plant in the US.” The proposed CCS unit at the plant will capture around 2Mt/yr of CO₂ from 2030. If Ward’s forecast is accurate (and no one beats them to it), then Heidelberg Materials will likely have set up the first full-scale CCS units at cement plants in both North America and Europe. This will be a significant achievement. The National Cement project, by contrast, is a mixed bag of approaches to decarbonising cement production that follows the multi-lever approach advocated for in many of the industry net-zero roadmaps. It intends to use agricultural by-products such as pistachio shells, as alternatives fuels to lower the fuel-based emissions, calcined clay to lower the clinker factor and CCS to capture the remaining 950,000t/yr of CO₂ emissions.

The other projects either involve using calcined clay or substituting limestone with calcium silicate. The Summit Materials proposal is noteworthy because it aims to build four clay calcination units in locations in Maryland, Georgia and Texas. None of these appear to be near Summit’s (or Cementos Argos’) cement plants. This suggests that the company may be intending to use calcined clay in ready-mixed concrete production. The Roanoke Cement Company calcined clay project will be baseEuropead at its cement plant in Troutville, Virginia.

The remaining two grant recipients, Brimstone and Sublime Systems, will both test the companies’ different methods of manufacturing cement by using calcium silicate instead of limestone. Brimstone’s method produces ordinary Portland cement (OPC) and supplementary cementitious materials (SCM). The company said in July 2023 that its OPC met the ASTM C150 standards. However, the company has released less information about its actual process. Sublime Systems’ uses an electrolysis approach to create its ASTM C1157-compliant cement. It calls this ‘ambient temperature electrochemical calcination.’

Investment on the same scale of the DOE has also been happening in Europe. In July 2023, for example, the European Commission announced an investment of Euro3.6bn in clean tech projects to be funded from the proceeds of the European Union emissions trading scheme (ETS). This was the third call for large-scale projects following previous announcements of recipients in 2021 and 2022. Euro1.6bn of the third call funding went towards cement and refining projects including five cement and lime projects in Belgium, Croatia, Germany and Greece. The money granted for each of these schemes was in the region of Euro115 - 235m.

Both the US and Europe are throwing serious finance at the cement industry to try and kickstart the various pathways towards net zero. They are also doing it in different ways, with the US aiming to boost its economy by onshoring sustainable industry, and Europe hoping to fund its approach via carbon taxation. Government-driven decarbonisation investment for cement in other large countries and regions around the world appears to be lagging behind the US and Europe but these may spring up as net zero targets are set, roadmaps drawn up and government policy formulated. These places could also benefit from watching what works and does not work elsewhere first. Back in the US and Europe the next tricky part of this process will be bridging the gap between government subsidy and commercial viability.

India: ACC and Ambuja Cements' Geoclean has launched two new facilities for sustainable waste management. The Ambuja Marwar pre-processing and co-processing facility in Rajasthan can convert 220,000t/yr of refuse into alternative fuel, while the ACC Jamul co-processing facility will process an additional 120,000t/yr.

The Ambuja Marwar facility, in collaboration with the Ambuja Marwar Farmer Producer Organisation, aims to source 50,000t/yr of agricultural waste from local farmers. This initiative will also increase the plant's thermal substitution rate to 15%. Similarly, the ACC Jamul facility will enhance its thermal substitution rate to 10%, reducing CO₂ emissions through the co-processing of waste in the cement kiln.