Cement News tagged under: Alternative Fuels

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Lafarge starts low-carbon fuel research project

12 January 2018, Published under Cement News

Lafarge Canada Inc, in cooperation with the University of Calgary, Queen’s University and Pembina Institute, is carrying out a million-dollar study on the environmental benefits of introducing lower-carbon fuels at its Exshaw Cement plant in Alberta, Canada. “Our estimates show each 20 per cent incremental replacement of natural gas at the Exshaw Cement Plant with lower carbon fuels could result in the elimination of nearly 75,000tpa of CO2. This is the equivalent of taking over 16,000 ca...

Not simply calcining

10 January 2018, Published under Cement News

While the primary purpose of the calciner in a cement plant is to aid decomposition of calcite from the preheated raw meal, the need to lower CO 2 emissions and the introduction of alternative fuels has broadened the range of requirements that modern-day calciners need to address. By Dr Heiko Schürmann and Norbert Streit, KHD-Humboldt Wedag GmbH, Germany. Figure 1: the main purpose of the calciner is to decompose calcite from the preheated raw meal, which is the most energy-intens...

Cauldon’s six decades

10 January 2018, Published under Cement News

Last year saw Aggregate Industries celebrate six decades of cement production at the Cauldon plant, the first dry-process cement works in the UK. Ignacio Mirasol, plant manager at Cauldon, takes us through the plant’s history and how it has changed during this time to meet today’s market requirements. Aggregate Industries’ Cauldon plant celebrates six decades of history ICR: What was the cement plant’s initial capacity in 1957 when it became the UK’s first dry-process cement pl...

AICCE returns to Egypt

03 January 2018, Published under Cement News

The 22nd Arab International Cement Conference and Exhibition (AICCE22) was held at the International Congress Center, Maritim Jolie Ville, in Sharm El Sheikh, Egypt, between 14-16 November 2017, attended by 450 delegates from over 30 nations. An international exhibition with 119 stands was the main focus of the event, supported by a comprehensive conference programme with 46 presentations dealing in the full range of cement manufacturing technologies. Opening session of AICCE22 in S...

UNTHA expands distribution in Japan

20 December 2017, Published under Cement News

Shredding specialist UNTHA continues to expand in Asia, following the agreement of a new distribution partnership with Sun Earth, a leading technology provider in Japan's waste management industry.   UNTHA’s Austrian manufactured shredding technology wil now be supplied to a number of sophisticated waste and alternative fuel production facilities throughout Japan.   "We want to offer our customers the most advanced waste technologies in the world," commented Yutaka Ebihara, Sun Earth CEO....

Bamburi Cement suspends plans to switch to solar power

18 December 2017, Published under Cement News

Bamburi Cement has put its plans to switch to solar power on hold, reports Standard Digital. The high cost of the project has left the company to resort to other methods to reduce its rising energy expenses, such as using waste tyres for fuel.  Bamburi Cement spends KES2.4bn (US$23.2m) annually on electricity to run its two plants in Mombasa and Nairobi. These figures make it the second-highest consumer of electricity in Kenya. To reduce that power usage by a significant factor, the compa...

LafargeHolcim plans PLN150m investment in Kujawy

18 December 2017, Published under Cement News

LafargeHolcim intends to invest PLN150m (US$42m) in alternative fuel-related projects in its Cementownia Kujawy cement works in Poland. The company will modify the clinker line to burn alternative fuels and improve product quality. The investment will also include the construction of new cement loading terminals and the launch of a fully-automated laboratory.

Crystal clusters in clinker

13 December 2017, Published under Cement News

With 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 Queretaro

08 December 2017, Published under Cement News

Cemex 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 India

07 December 2017, Published under Cement News

The 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...