Cement News tagged under: emissions

RSS feed

EPA to take Irish cement to court re emissions incident

04 December 2017, Published under Cement News

The Environmental Protection Agency has initiated legal proceedings against Irish Cement for alleged breaches of its operating licence at its Limerick plant. The EPA has confirmed to the Limerick Leader it has issued a summons to the company, relation to the emissions from the Castlemungret cement pant.  The case is scheduled to come before a sitting of Limerick District Court on 2 March 2018. A spokesman confirmed it received the summons "in relation to dust emission incidents earlie...

Kiln emissions – more than just hot air

01 February 2017, Published under Cement News

In last month’s Technical Forum we promised to return to the topic of cement kiln emissions, which were said to be both simple and complex, benign and noxious. The challenge is to see the broad simplicity, which then allows the increasing complexity to be understood. By Dr Michael Clark, UK. Kiln emissions include a wide range of gases – some benign but others noxious At the macro level cement kiln emissions are indeed simple. The raw materials used for manufacturing clinker are...

Going alternative in Japan

12 December 2016, Published under Cement News

With Japanese cement demand falling over the past 20 years, Sumitomo Osaka Cement has constantly evolved its cement manufacturing processes. As a result, the company’s Ako integrated cement plant stepped up its use of alternative fuels and raw materials as part of its efforts to reduce costs and the impact of plant emissions. By Tetsuo Yokobori, Sumitomo Osaka Cement, Japan. Sumitomo Osaka Cement has carried out many improvements at its Ako plant, Japan Sumitomo Osaka Cement (SO...

USA: Hagerstown plant US$96m upgrade

26 October 2016, Published under Cement News

Holcim (US) has completed a US$96m upgrade on its Hagerstown plant, Maryland. The facility has existed for over 100 years and according John Stull, CEO of US operations for LafargeHolcim, the latest improvements "really should help this plant to serve the community for another 20 to 30 years.” The project, during which the plant remained operational, took two years to complete and complies with federal environmental regulations. Oliver Terver, Hagerstown plant manager, spoke of the company...

Canada: Lafarge improving environmental impact

13 September 2016, Published under Cement News

Lafarge has completed a CAD20m (US$15.3m) modernisation project at its Exshaw plant in Alberta. The works focussed on improving the plant’s environmental impact but also nearly doubled output from 1.3Mta to 2.2Mta. The retrofit was carried out on the plant’s kiln No. 5, alongside the construction of a new state-of-the-art kiln No. 6. While completing this project, which was started in 2013, one of the plant’s older kilns had to be decommissioned.  Amongst the environmental measures put...

USA: Cemex settles with EPA

28 July 2016, Published under Cement News

Cemex and its affiliate, Kosmos Cement Company, have reached a settlement deal with the Environmental Protection Agency (EPA) to resolve alleged historical violations of the Clean Air Act at five cement plants in Alabama, Kentucky, Tennessee and Texas. Cemex will invest around US$10m to cut emissions of harmful pollution. Emissions monitoring and reduction equipment will be installed at the five plants. Cemex will also pay US$1.69m in civil penalties, conduct energy audits and spend US$15...

Raw MSW gasification at Conch Tongling Cement

25 July 2016, Published under Cement News

To enable Conch Tongling Cement to burn a higher rate of alternative fuels, an integrated gasification system was installed and duly tested. The system converts organic or fossil fuel-derived carbonaceous materials into CO, H and CO 2 and without combustion, produces a fuel that can be used in cement production. By Yan Da-Hai, Chinese Research Academy of Environmental Sciences, China, Kåre Helge Karstensen and Christian J Engelsen, Foundation for Scientific and Industrial Research (SINTEF),...

Lowering NOx and SO2

19 December 2012, Published under Cement News

There are several options for reducing NOx and SO2 in the cement pyroprocess. However, the solution selected must be both cost-effective and flexible in terms of raw materials, fuels and operating conditions. Making the correct choice requires the necessary process know-how and advanced technical solutions to handle NOx and SO2 emissions at all levels. FLSmidth is one of the few companies to offer both. Lars Schultz explains. Dialogue between FLSmidth specialist and customer, SNCR inj...

Behind the numbers

30 July 2012, Published under Cement News

The Cement Sustainability Initiative’s “Getting the numbers right” project has seen the creation of a sizeable and influential database on cement plant emissions and energy consumption, which has just been updated with 2010 data. Phil Kerton of CPK Consultancy, UK, takes a first look at some of the interesting values and trends that can be extracted from this important resource. It is the sixth year that the Cement Sustainability Initiative publishes data on cement industry CO2 emissi...