Displaying items by tag: Alternative Fuels

India: A report by the Cement Sustainability Initiative (CSI) shows that the local cement sector is on track to meet its 2030 targets from the low carbon technology roadmap (LCTR). Direct CO₂ emission intensity fell by 5% in 2017 in the Indian cement sector compared to the 2010 baseline. CO₂ emission intensity, including onsite or captive power plant (CPP) power generation, was reduced by 6.8% compared to the 2010 baseline. The alternative fuels thermal substitution rate (TSR) increased by 5 times from 2010 to 2017. The sector consumed more than 1.2Mt of alternative fuels in 2017.

“Sustainability is a journey, not a destination. In our globalised and interconnected world, no one can solve alone the challenges ahead of us and the only opportunity to succeed is through collaborative partnerships, where the common interests of all are considered as more important than the sum of individual interests. This is exactly the spirit that has animated the CSI’s low carbon journey since 1999. This flagship project - with its members - has developed, implemented and shared collective solutions for measuring, reporting and improving its greenhouse gas reduction performance, year after year,” said Philippe Fonta, managing director CSI.

The CSI and the International Energy Agency (IEA) worked with nine local CSI member companies - ACC, Ambuja Cements, CRH, Dalmia Cement (Bharat), HeidelbergCement, Orient Cement, Shree Cement, UltraTech and Votorantim Cimentos - to carry out the status review on the sector’s performance trends, continuous implementation measures and notable achievements based on the milestones set in the 2013 LCTR. The Status Review Report was developed in consultation with Confederation of Indian Industry (CII), with support from International Finance Corporation (IFC) and the Cement Manufacturers Association (CMA).

The findings of the report show that the direct CO₂ emission intensity was reduced by 32kgCO₂/t cement to 588kgCO₂/t cement in 2017 mainly due to an increased use of alternative fuel and blended cement production, coupled with a reduction in clinker replacement factor. However, the study also shows that significant efforts will be needed to meet the 2050 objectives of 40% reduction. The CO₂ emission intensity (including onsite or CPP power generation) has reduced by 49kgCO₂/t cement to 670kgCO₂/t cement in 2017 compared to the baseline year. The report has highlighted the adoption of waste heat recovery (WHR) systems by local cement plants.

The alternative fuels TSR increased to 3% in 2017 from 0.6% in 2010. More than 60 cement plants in India have reported continual usage of alternative fuels, with 24% of the total alternative fuels consumed as biomass. The share of blended cements used in the total quantity of cement manufactured increased to 73% in 2017 from 68% in 2010, largely due to the market’s growing acceptance of blended cement, emerging awareness of sustainability concepts, the availability of fly ash from thermal power plants and the use of advanced technology. The production of Pozzolana Portland Cement grew to 65% in 2017 from 61% in 2010. The share of Portland Slag Cement in cement production remained flat, at less than 10%, over the same period. The clinker factor reduced to 0.71 in 2017 from 0.74 in 2010.

In August 2018 the Global Cement and Concrete Association (GCCA) said it was taking over the work previously done by the CSI from 1 January 2019.

US: Bulk Handling Systems (NHS) has appointed Matthias Erdmannsdoerfer as managing director of Max-AI. Prior to this new role, Erdmannsdoerfer worked for more than six years as the president of National Recovery Technologies (NRT), a developer of optical sorting technology and subsidiary of BHS. In his new role Erdmannsdoerfer will be responsible for the Max-AI product line including sales, business development and product and application development.

Launched by BHS in 2017, Max-AI technology powers robotic sorters, optical sorters and reporting systems, and will continue to be integrated into new and existing equipment throughout material recovery facilities (MRFs). Since its inception, more than 50 Max-AI AQC (Autonomous Quality Control) robotic sorters have been sold in quality control (QC) applications of both fibre and containers.

Germany: Environmental data from the German Cement Works Association (VDZ) show that average nitrogen dioxide emissions (NO₂) from cement production dropped below 300mg/Nm³ in 2017. The value has more than halved since 2000. Other data from the ‘Environmental Data of the German Cement Industry 2017’ report shows that fossil fuels usage by the cement industry fell to 35% in 2017 compared to 45.6% in 2008.

"By consistently promoting the development of clinker-efficient cements, German cement manufacturers are noticeably reducing the carbon footprint as compared to traditional Portland cements," said VDZ President Christian Knell.

Knell also warned that the costs of carbon capture technologies should not be allowed to jeopardise the competitiveness of domestic cement manufacturers and give rise to ‘undesirable’ carbon leakage effects. The industry is currently researching methods to further reduce CO₂ emissions such as carbon capture, storage and utilisation techniques, but it is dependent on external financing.

18 German cement manufacturers with a total of 46 cement plants are members of the VDZ. The local industry employs around 8000 people.

China: Huaxin Cement’s sales rose by 27% year-on-year to US$1.75bn in the first half of 2018 from US$1.38bn in the same period in 2017. Its net profit nearly tripled to US$304m from US$107m. Its cement and clinker sales volumes grew by 1.13% to 32.2Mt.

The cement producer said that it had been challenged by raw materials and fuel price rises and kiln suspensions due to government-mandated peak shifting production during the reporting period. However, measures such as higher alternative fuels co-processing rates and efficiency gains helped to bolster its financial performance. Its kiln waste processing volumes increased by 18.4% to 0.68Mt.

The company added that its Tibet Shannan 3rd Phase 3000t/day clinker production line was ‘proceeding smoothly’ and was scheduled to start operation by the end of August 2018. Its 4000t/day Yunnan Luquan clinker line and 2.85Mt/yr Huangshi clinker replacement line projects have started construction. In Nepal a 2800t/day clinker line is scheduled to start construction by the end of the year. It is also working on municipal solid waste (MSW) projects in Wuhan Changshankou and Lijiang.

Egypt: Khaled Fahmy, the Minister of Environment, has opened a new production line at Arabian Cement Company’s Ain Sokhna plant in Suez. The line uses FLSmidth’s Hotdisc combustion device to allow it to use high levels of alternative fuels, according to the Watani newspaper. The opening was attended by Muhammad Shehab Abdel-Wahab, chief executive of the Egyptian Environmental Affairs Agency, Nahed Youssef, head of waste management organisation, as well as a number of representatives of the financiers, and director of the European Investment Bank.

In 2015 Arabian Cement Company commissioned another Hotdisc installation. At the time is said it had a designed fuel mix of 70% coal and 30% alternative fuels, using a mixture of agricultural wastes, municipal sludge, and refuse-derived fuel (RDF).

Poland: LafargeHolcim has celebrated investing over Euro95m at its Kujawy cement plant since 2008. As part of the Pomeranian Special Economic Zone, the plant has had a number of upgrades over the last decade and has created over 60 jobs.

Projects at the site have included spending Euro24m on environmental improvements such as installing new filters, building a new clinker silo and four cement silos, and converting the plant to process alternative fuels. Euro56m has been invested on production upgrades including a new cement grinding mill, a new calciner and new constant monitoring systems. Euro18m has been spent on two bulk loading terminals, a new weighbridge and self-loading systems and a new laboratory.

France: The French cement industry union (SFIC), plus three other professional organisations, has announced that has committed to increase the amount of wood waste used in France’s cement plants. It has committed to increasing the amount used by 90% compared to 2015 by 2020.

90,000t of wood were used as fuel in cement production in 2015. The goal is to use 170,000t in 2020. Four cement plants will act as pilot sites. The wood used must be from the same region as the plant burning it. According to the SFIC, alternative fuels account for 41% of cement fuels used in France.

This week’s Plastics Strategy from the European Commission (EC) presents the cement industry with a narrowing target. If the Plastics Strategy is successful it will prevent plastics waste altogether. This will then eliminate the key calorific content of refuse-derived fuels (RDF) and disrupt co-processing supply chains at cement plants across the continent. If it is too lax then dumping plastics in landfill could become more economically viable, also changing the market dynamic. Neither extreme looks likely at this stage but the European cement industry needs to make its views known.

Cembureau, the European cement association, has done just that today with the publication of a position paper on the subject. It conveniently ignores the top two tiers of the waste hierarchy – prevention and re-use – but it does recognise that ‘high quality recycling’ is the preferred option. This is followed by the target of its lobbying: protecting co-processing. Make no mistake, this is supporting industrial behaviour change with solid environmental benefits. Its areas for policymakers to focus on include protecting co-processing: a ban on landfill; linking energy recovery to recycling; concentrating on the legislation; thinking about material lifespan sustainability benefits; and helping minimise the investment costs for processing facilities.

Providing cool heads prevail, the importance of co-processing plastics as part of any realistic plastics strategy seems unlikely to change any time soon. What’s more likely to be the real target for Cembureau is standardising measures on collection, sorting and material recovery across the European Union (EU). For example, as this column has reported twice in 2017 (GCW288 and GCW324), the issues with waste disposal legislation in Italy have led to various problems in the sector. Waste collectors found it easier to export RDF to Morocco from Italy rather than use it locally in 2016. The slag industry has also reported similar issues with reuse in Italy. The consolidation of the local cement industry following the takeover of Italcementi and Cementir by HeidelbergCement and of Cementizillo by Buzzi Unicem should present a more unified industry approach towards alternative fuels. Backup from the EC could solve the other half of the alternative fuels puzzle in Italy and help to deliver serious change. Ecofys data from 2014 showed the EU co-processing average rate as being 41%, with six countries – Ireland, Portugal, Spain, Bulgaria, Italy and Greece – having rates below 30%.

Vagner Maringolo of Cembureau outlined the market opportunities for waste uptake at cement plants at the 11th Global CemFuels Conference that took place in Barcelona in February 2017. He started by revealing that plastics represented over 40% of the total share of alternative fuels used in the EU in 2014. A ban on landfilling municipal waste was expected to boost the supply of RDF and a Cembureau/Ecofys study on the market potential of alternative fuels concluded that around 10Mt of waste was co-processed in cement kilns in the EU28 in 2015. This represented around 2% of total combustible waste each year but it represented 10% of all of the energy recovery from waste in the EU. In other words co-processing plastics waste offers a very attractive means for the EU to meet its sustainability targets.

However, before Cembureau and the cement industry starts popping the (reusable) champagne corks, consider the wider picture. China has banned imports of foreign waste in 2018 including RDF from the UK, a major exporter. Unless new markets are found this may impact the price of RDF in Europe. Brexit is another example how of European waste markets might be disrupted in the medium-term. Cement producers want a steady supply of cheap fuels but if the providers can’t make enough money from their products then the market will fail. The tightrope for Cembureau to walk with plastics is to promote RDF use and secure its supply. Persuading the EC to support this may involve some wobbling along the way.

The 12th Global CemFuels Conference on alternative fuels for cement and lime takes place in Berlin on 20 – 21 February 2018

Belgium: Cembureau, the European cement association, has published a position paper outlining its stance European Commission’s plastics strategy. The association wants policymakers to ensure any plastic waste that has a calorific value that can be recovered as a fuel source is not landfilled. At present there are differences in waste management policies across the member states of the European Union.

Other points that Cemburea wants to highlight include: a ban on landfill of recoverable and recyclable waste; recognition that cement plants can treat different waste streams such as plastics and simultaneously recycle them as material in the manufacturing process of cement and recover them as energy; the specific relevance that co-processing offers the unique opportunity of a simultaneous energy and material recovery; and the potential to minimise investment costs in dedicated facilities.

In January 2018, the European Commission published a dedicated Plastics Strategy as part of the Circular Economy package. The strategy indicates that there is currently a low rate of recycling or reuse of plastics with most of it going to landfill or used in incinerators.

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.