Displaying items by tag: GCW159

An update on the algae bioreactor project at Votorantim's St Marys cement plant in Canada this week provides a good opportunity to review this particular aspect of carbon sequestration. The project, run with Pond Biofuels, went live in 2009. It has now reached its third generation bioreactor at the site.

Little or no performance data has been released generally so we have no way at present of knowing how viable the process is commercially. Cement backers, Brazilian firm Votorantim, are certainly excited by the project even if only for the sustainability kudos it gives them. Director Edvaldo Araújo Rabello presented the project as one of the company's highlights at a keynote presentation at the 6°CBC Congresso do Cimento held in São Paulo, Brazil in May 2014.

One hurdle for the St Marys pilot is the relative lack of light, a required input for algae photosynthesis, even in Canada's most southerly state. Pond Biofuels have reportedly dodged this by using continuously flashing LEDs to simulate artificially short days that encourage growth. On paper or powerpoint a process that could potentially cut even a proportion of CO₂ emissions from a cement plant sounds enticing. Yet if it creates more CO₂ than it saves, through electricity requirements for example, than it isn't worth using.

This is probably what shelved Lafarge's Carbon Capture and Transformation project. It ran a pilot project at its Val d'Azergues plant in France in 2009 with Salata GmbH. The pilot worked but the researchers decided that new advances in processes and biotechnology were required to make the economic and environmental results better. Other companies have also had problems. Holcim started its Aurantia – GreenFuel project in late 2007 at its Jerez cement plant in Spain, backing it with an investment US$92m. This project stalled when GreenFuel shut in 2009 citing lack of funding as the recession hit.

ACC in India also reportedly started its own algae project in 2007, mentioning it in its sustainability report, but nothing more has been reported since. Since this burst of interest InterCement has invested US$2.5m towards algae research in 2013 working with the Federal University of São Carlos, the Federal University of Santa Maria and Algae Biotecnologia.

Algae-based carbon projects for cement plants may remain stuck in the research stage but the market for biofuels continues to grow. For example, this week we report that Ohorongo Cement in Namibia plans to increase its use of blackthorn as a biofuel to use as an alternative fuel in co-processing. The prospects of turning waste CO₂ into a valuable commodity remains uncertain, but the rewards are great. Let's wait and see what St Marys can do.

US: Vulcan Materials has announced that its board has named J Thomas Hill as the company's new CEO, succeeding Donald James in the role. James, who is 65 years old, will become the company's executive chairman. He has served as Vulcan's CEO since 1996 and as its chairman since 1997. Hill, who is 55, previously had acted as Vulcan's chief operating officer. Before that, he held several management positions in sales and operations since joining the company in 1979.

Vulcan also promoted its financial chief John McPherson to the position of chief financial and strategy officer, a role in which he will oversee strategy and human resources functions in addition to his existing duties.

Russia: Andrey Nesen has been appointed as the new director of Voskresenskcement plant, a Lafarge subsidiary. Nesen will oversee production and personnel development, the upkeep of corporate safety standards and will control implementation of the plant's social projects. Andrey Nesen previously occupied the position of Voskresenskcement's operations director, production manager and director of the production analysis department.

India: Vicat Group has purchased Sagar Cements' stake in Vicat Sagar Cement for US$72m, subject to customary conditions precedents. After this transaction, Vicat will own 100% of Vicat Sagar Cement. Together with the share purchase, the two groups will untie all their ownership links.

Vicat Sagar Cement operates a cement plant in North Karnataka with a cement production capacity of 3Mt/yr. The plant includes its own captive power plant and access to the rail network. Vicat's India operations, comprising Bharathi Cement and Vicat Sagar Cement, include two cement plants with a total production capacity of 8Mt/yr.

In 2013 Vicat reported sales of US$210m in India, a rise of 12.7% year-on-year. In the first quarter of 2014, sales in India rose by 27.2%.

Spain: The Spanish cement makers association Oficemen expects cement demand in Spain to fall by 3% year-on-year to 10.4Mt in 2014.

Despite the slight recovery of the Spanish economy expected by analysts, the year is expected to be difficult for the local cement makers, the chairman of Oficemen, Isidoro Miranda, has said. Cement demand is expected to start increasing in 2015 if the Development Ministry decides to boost investments public works, he added. In June 2014, cement demand in Spain fell by 2% year-on-year to 967,790t.

Laos: The Lao government has halted coal exports to protect cement and other key national industries, according to the Lao Ministry of Energy and Mines. The country has six cement plants, which import a large volume of high-price coal, the ministry reported.

According to local cement producers the price of locally produced cement is currently higher than that in Thailand. This poses a challenge for the industry when the Association of Southeast Asian Nations (ASEAN) Economic Community is established in 2015. Hence they are supporting a legal means to secure an adequate supply of coal mined inside the country.

China: Xinjiang Uyghur Autonomous Region in northwest China saw cement production fall by 14.4% year-on-year to 12.8Mt in the first half of 2014, the local administration of building materials has revealed. Cement sales dropped by 13% to 12.6Mt during the same period.

Meanwhile, the region produced 13.5Mt of clinker in the first half of 2014, a rise of 10.5%. At the end of June 2014 clinker inventories totalled 9.04Mt, an increase of 75.5%.

Bosnia and Herzegovina: Bosnian cement factory Tvornica Cementa Kakanj (TCK) plans to invest Euro10.2m in the 2013 - 2018 period towards environmental upgrades. In 2014 TCK plans to invest Euro2.55m on modernising its cement mills and dust collecting system. The company is majority-owned by Dutch-based CEEM Investment, a subsidiary of HeidelbergCement.

Jamaica: The Caribbean Cement Company and the Venezuelan government are close to a supply agreement for approximately 340,000t of clinker. The deal is valued at about US$29m, according to the Jamaican government. The clinker will be used by Venezuela as part of an initiative to build two million homes over a seven-year span to address a housing shortage.

Tajikistan: Tajikistan generated 496,600t of cement in the first six months of 2014, according to the Ministry of Industry and New Technologies. Tajikistan reportedly generated 385,000t of cement in 2013. The country is now intending to double its annual production of cement in 2014.

In September 2013, the Yovon cement plant (Huaxin Gayur Cement Co Ltd) started operation. It has reportedly produced 362,800t of cement in January - June 2014. This was over 70% of the overall volume of cement produced in Tajikistan in the first half of 2014.

Other cement plants in the country include the Tajikistan - China joint venture, Yovon cement, with a cement production capacity of 1Mt/yr. OJSC Tojikcement (Dushanbe cement plant) produced 101,600t of cement in the first half of 2014.