Cement News tagged under: Alternative Fuels
Crystal clusters in clinker13 December 2017, Published under Cement NewsWith increasing use of alternative fuels, short homogenisation times in precalciner kiln systems and the requirement for high alite cement, the presence of crystal clusters is not expected to be a thing of the past. While the impact of crystal clusters in clinker on quality is not always clear, some effects can be seen. Figure 1: brown and lighter blue belite crystals surrounding liquid phase Cement clinker for general-purpose Portland cement is composed essentially of four... |
Cemex receives waste tyre hoard in Queretaro08 December 2017, Published under Cement NewsCemex is taking used tyres off the street in Santiago de Queretaro, Mexico, thanks to a local authority initiative to clean up tyres left on vacant urban land and in the drainage system of the city. The Mayor Marcos Aguilar Vega announced that up to 3905 wheels were collected during the first Llantaton 2017, held a few weeks ago, and that add to that are harvested during the year. "So as in alliance with tire companies and a cement factory, these programme are made to remove the tyres ... |
RDF production and utilisation in India07 December 2017, Published under Cement NewsThe production of refuse-derived fuels (RDFs) from municipal solid waste (MSW) offers one solution to address the growing waste issue in countries with increasing populations such as India. At the same time, these RDFs enable the cement industry to substitute fossil fuels and reduce its CO2 emissions. By Palash Kumar Saha and Dr Kåre Helge Karstensen, SINTEF, Norway, and Kannan Vairavan and Vinoth Balakumar, CII-GBC, India. Input waste quality for RDF and compost production at Ramky E... |
Jammu & Kashmir government plans co-processing of plastic waste01 December 2017, Published under Cement NewsIn India, the Jammu and Kashmir government is considering the use of polythene and plastic material waste, which accounts for around 20 per cent of waste collection, to fire cement and brick kilns, in line with the National Green Tribunal’s guidelines to the 2016 solid waste management rules. The move was discussed in a meeting led by Pradeep Singh, advisor to the Chief Minister of Jammu and Kashmir. Going forward, the initiative will look at implementation strategies that take into accoun... |
Ohorongo considers TDF use28 November 2017, Published under Cement NewsFollowing the inauguration of its first RDF processing plant earlier this year , Namibia's Ohorongo Cement is now investigating, together with Metallurgical Research and Consulting (METRECO), the use of tyre-derived fuel (TDF) to fire its cement kilns at the Sargberg plant. The step is taken in line with the company’s efforts to replace up to 80 per cent of imported coal with alternative fuels by 2019. “With gas temperatures of up to 2000˚C, the cement manufacturing process guarantee... |
Holcim Philippines uses cigarettes as fuel27 November 2017, Published under Cement NewsCigarettes seized due to excise tax liability will now be used as a fuel by Holcim Philippines. The 9496 cases of cigarettes worth PHP142.4m (US$2.8m) will be burnt over the course of 15 days, according to SunStar. The Department of Finance has allowed their use as an alternative fuel by Holcim Philippines Davao. "I would like emphasize that this is not the last incineration that will happen. All tobacco products found to have been produced without its manufacturer paying the correspondin... |
Irish Cement plans to reduce carbon emissions22 November 2017, Published under Cement NewsIrish Cement has stated that its plans to increase alternative fuels usage is not a move to develop a waste incinerator, according to The Irish Times. The company has been using 120,000t of residual waste at its Platin cement works and has requested permission to increase the volume to 600,000t. The new plans submitted to Bord Pleanála for approval would allow the company to replace up to 85 per cent of its fossil fuels with alternative fuels. The project would help reduce Ireland’s carbo... |
Evolving the future20 November 2017, Published under Cement NewsGermany-based grinding specialist Loesche held its 2017 Symposium under the banner of “Evolving the future” on 6-7 September at the Maritim Hotel in Düsseldorf, Germany. Around 500 delegates from cement companies and suppliers attended the event to take stock of the latest developments in grinding and help Loesche celebrate its 111th anniversary. Some 500 delegates gathered to hear Loesche's latest advances in grinding technology Following a warm welcome to the Loesche Symp... |
Tyres: going full circle09 November 2017, Published under Cement NewsContributing to the circular economy, an innovative tyre-burning initiative at PPC’s De Hoek plant in the Western Cape, South Africa, has successfully demonstrated the viability of burning waste tyres as an alternative to coal in cement production. The project not only reduces coal usage and NOx emissions but also decreases landfill requirements for waste tyres, achieving a positive environmental impact. By Johan Vorster, PPC, South Africa. PPC De Hoek's location and the socio-ec... |
Spain's cement industry in drive to reduce CO2 emissions 80% by 205018 October 2017, Published under Cement NewsAccording to a new report by Oficemen, the Spanish cement industry is undertaking steps to reduce its CO2 emissions by 80 per cent by 2050 when compared with 1990 as base year. In its “Roadmap of the Spanish cement industry for the reduction of carbon emissions by 2050”. Conventional means such as increased energy efficiency and co-processing will enable the sector to reduce its CO2 footprint by 35 per cent compared to the base year. The roadmap foresees improvements in thermal efficiency ... |