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Cemex fuels energy and carbon savings

Cement and building materials manufacturer CEMEX UK, replaced more than 52% of the traditional fossil fuels used to heat its cement kilns with alternative fuels during 2010, up from 45% in 2009.
This saved the company nearly 194,000 tonnes of CO2 over a 12 month period across its cement plants. Or, the equivalent to saving the CO2 emissions generated by around 77,000 cars in a year.

In the UK, CEMEX uses alternative fuels at its cement plants in Rugby, Warwickshire and South Ferriby, North Lincolnshire. These used 49% and 67% alternative fuels respectively during 2010.

The alternative fuels used at Rugby are Climafuel and chipped tyres, and Climafuel and secondary liquid fuel (SLF) at South Ferriby are used. Climafuel is derived from household and commercial and industrial waste which is diverted from landfill and processed through a Mechanical and Biological Treatment plant. Secondary liquid fuel is made from industrial liquid wastes that cannot be recycled, such as paint thinners, inks and varnishes.

Vice President of Cement Operations for CEMEX UK, Carlos Uruchurtu says: “The use of alternative fuels also helps to reduce waste sent to landfill. In CEMEX’s case, more than 300,000 tonnes of waste that would otherwise go to landfill was used to fuel the kilns in 2010.

“We did well in 2010, but are looking to increase the use of alternative fuels further in the future. While 100% replacement would be a challenge in the immediate future, it should be our goal, subject to public consultation and permit approvals, as well as capital investment and continuous improvements in the waste derived fuels supply chain.”

While South Ferriby has permission to use 85% alternative fuels, Rugby hopes to secure the permission to use 65% alternative fuels on a permanent basis later this year.

About Fiona Russell-Horne

Fiona Russell-Horne
Group Managing Editor across the BMJ portfolio.

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