Displaying items by tag: Alternative Fuels

Germany: Beumer Group has published a technical report detailing changes to its operations due to the on-going Covid-19 outbreak. The group says that cement producers in some markets have changed to 50kg to 25kg bags. It also reported an increased rate of digitisation, less personal interaction with customers and an increased reliance on alternative fuels.

Cement head of sales Kay Wieczorek said, "Over past months, Covid-19 has forced us to cope with some changes. This will probably bother us even more in the colder months." He added, "Even if the Covid-19 figures are currently in progress, I am sure that BEUMER Group will come through this crisis pretty well; we just have to be well-prepared for it."

France: Vicat started using a CO₂ntainer system supplied by UK-based Carbon8 Systems at its Montalieu-Vercieu cement plant in November 2020. It uses captured CO₂ from the unit’s flue gas emissions to carbonate cement-plant dust and produce aggregate, which can then be used to make products such as concrete. The system has particular relevance for a plant burning alternative fuels due to the additional chlorinated dust created compared to the use of conventional fossil fuels. The company says it is the first European cement producer to use the process at an industrial scale. Previously, Carbon8 Systems said that its CO₂ntainer would process and convert up to 12,000t of cement bypass dust in its first phase of operation.

Vicat Group scientific director Laury Barnes-Davin said, “We were drawn to Carbon8 Systems’ two-part technology: capturing the CO₂ that Montalieu emits, and using it to produce an aggregate that can be marketed in the construction industry. It opens up great potential for our operations not just in France but also in all the countries where we work across the globe.” The group hopes to reach a 100% alternative fuel substitution rate in France by 2024.

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.

Austria: Loesche subsidiary A TEC has won a contract for the supply and installation of a Flash Dryer for alternative fuels (AFs) in the kiln line of Lafarge Zementwerke's 1.1Mt/yr Mannersdorf cement plant in Lower Austria. The supplier said that it will complete the project in early 2021.

The company said, “Reaching high thermal substitution rates (TSR) requires firing of alternative fuels at the kiln burner. To reach a stable sintering zone for the required clinker quality a high fuel quality (high LCV, small particle size) is needed, otherwise the clinker quality may suffer or the TSR can be limited. With the A TEC Flash Dryer various waste heat sources can be used (clinker cooler flue gas, bypass gas, preheater gas, etc.). The material is dosed to the hot gas flow in the flash dryer and transported with this gas flow, while the moisture is evaporated, to a cyclone and a subsequent filter where the fuel is separated from the gas flow and on-line fed to a kiln burner or a satellite burner. In addition to the drying the lifting effect of the gas can separate 3D impurities which contributes in a further increase of the fuel quality.”

South Korea: SungShin Cement has placed an order with Denmark-based FLSmidth for the supply of two HotPlate combustion devices for installation in lines three and six of its SungShin cement plant. The plant is in the transition from coal fuel to the possibility of 100% alternative fuel (AF) use in the two lines, which it plans to commission in mid and late 2021 respectively.

Team manager of production technology Cho K-R said, “With its degree of flexibility, the HotDisc allows us to substitute coal with a wide range of AFs – refuse-derived fuel (RDF) in our case. As we turn waste into energy, the HotDisc lowers our operating costs without compromising energy efficiency.”

FLSmidth previously delivered two HotDiscs to South Korea, to SsangYong’s Donghae and Yeongwool cement plants.

US: Bulk Handling Systems (BHS) has appointed Thomas Brooks as its chief technology officer (CTO). He previously worked as BHS’ Director of Technology and Product Development. Brooks was recently named a Waste360 40 Under 40 award winner. He has served in management and new product development roles in the aerospace, biomedical, industrial and automotive industries, among others. He holds a Bachelor’s Degree from Tennessee Tech University in Mechanical Engineering with a focus on controls and fluid dynamics.

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.

Mexico: Cemex says that the ongoing coronavirus pandemic will not delay its ‘Climate Action Strategy’ that was previously announced in February 2020. The building materials producer has developed a CO₂ reduction roadmap to help guide it towards a towards a targeted 35% reduction in net specific CO₂ emissions between 1990 and 2030.

The roadmap consists of: reduction of CO₂ emissions of clinker through “the production of novel clinkers with lower heat consumption”; use of “alternative decarbonated raw materials”; increased alternative fuel substitution; and increased substitution of clinker with “alternative cementitious materials, using admixtures to enhance strength, and adopting new grinding technologies to improve performance”; in addition to the increased use of renewable energy.

Cemex chief executive officer (CEO) Fernando Gonzalez said, “Climate change is one of the biggest challenges of our time, and we believe that we can continue to address it as a fundamental component of our efforts to recover from the Covid-19 pandemic.”

Hungary: Italy-based Entsorga has completed the installation of an automated alternative fuel (AF) line at a Hungarian cement plant.The upgrade consists of an Entsorga Spider crane and Pelican power system which will be able to maintain a continuous feed to the plant’s calcination system 24 hours a day.

Entsorga CEO Francesco Galanzino said, “Bringing a commission to a successful conclusion in the middle of the maximum intensity period of the coronavirus crisis has been a great satisfaction. The cement plant will make significant savings in CO₂ emissions.”

Spain: A 25% alternative fuel (AF) substitution rate has accounted for a 9650t reduction in CO₂ emissions at Cementos Cosmos’ 0.7Mt/yr Oural, Galicia plant, lowering the specific CO2 emissions of its clinker by 45kg/t. A main constituent of the AF mix was olive stones. Cementos Cosmos Oural plant managing director Jaime Santoalla said, “At Cementos Cosmos, we accept our responsibility to meet the global objectives of reducing greenhouse gas emissions.”