Displaying items by tag: US

US: The Texas Commission on Environment Quality has discarded legal limits on crystalline silica in ready-mix concrete plants’ dust emissions. Commissioner Bobby Janecka said "I am pretty comfortable moving forward and finalising the proposed revision of the standard permit to bring us back to the point we departed from in 2012." He added that the commission had confirmed the decision with analysis from before the previous rule change, which he attributed to a ‘clerical error.’

US: Lehigh Hanson has launched a new bag design for its EcoCemPLC product, a Portland Limestone Cement. Features of the refreshed packaging design for EcoCemPLC include the ‘reduced carbon footprint’ icon, featured prominently in the new bag design to emphasise EcoCemPLC’s carbon-reduction benefit. The newly designed bag will be released to retail and dealers in October 2021.

“The new bag design and transition to EcoCemPLC is about more than aesthetics - it’s about clearly communicating the proven benefits of EcoCemPLC to sustainably minded customers,” said Alex Car, president of Lehigh Hanson’s Northeast Region.

US: LafargeHolcim US says that the integrated 2Mt/yr Midlothian plant in Texas will become the first cement plant in the country to fully convert to Portland Limestone Cement (PLC) production. The unit will switch to producing the company’s OneCem product, a blended cement manufactured with up to 15% of finely ground limestone. The move is intended to help LafargeHolcim US and its customers meet sustainable construction goals and lower carbon emissions.

“This is an important, but not unique, step for us. We were the first to produce OneCem, a PLC product, in one of the fastest-growing metro areas in the country, and fuel our industry’s step towards a zero carbon future,” said Patrick Cleary, senior vice president of sales, LafargeHolcim US Cement.

The company is promoting OneCem as an alternative to Ordinary Portland Cement in terms of concrete workability, set time, durability and strength development. It can be incorporated into a broad spectrum of applications that will support foundational structures. The product is available in the Western and Southern regions of the US and the company plans to ‘rapidly’ expand production.

Australia: US-based Carbon Direct has bought a 7% stake in Calix. Reuters News has reported the value of the stake as US$17.7m. Reuters News has reported that Calix plans to use the proceeds to scale up its carbon capture and storage (CCS) technology, as demonstrated at the LEILAC and LEILAC 2 installations at Lixhe, Belgium, and Hanover, Germany.

Calix chief executive officer Phil Hodgson said "As the world puts emissions trading schemes in place, CCS does start to look like a multibillion dollar addressable market.”

US/Denmark: Chart Industries subsidiary Sustainable Energy Solutions has chosen FLSmidth to help adapt and commercialise its Cryogenic Carbon Capture carbon capture and storage (CCS) system for the global cement industry. The system captures and stores CO₂ from flue gas as a liquid. FLSmidth says that it will use its global reach and process knowledge to accelerate the commercialisation of Cryogenic Carbon Capture and optimise its design for cement plants. It believes the technology can cut 90% of process CO₂ emissions at half the cost and energy consumption of current CCS processes.

FLSmidth cement president Carsten Riisberg Lund said “The cement industry is pursuing all options to reduce its environmental footprint, and CCS is a necessary technology to achieve this goal. Through this agreement with Chart, we lay the foundation for the scale-up and deployment of Cryogenic Carbon Capture technology with our customers. The technology developed by Chart is expected to become the most competitive at scale.” He added “This agreement is a significant leap forward in our joint efforts to enable our customers to reduce their environmental footprint.”

US: Mississippi Lime has appointed Paul Hogan as its president and chief executive officer (CEO). After a transition period he will take up the posts in early 2022 when the current holder, Bill Ayers, retires.

Hogan previously worked as the CEO of the Americas of Italmach Chemicals. In this position, he led their specialty chemical business in the Americas while also serving as the Global Vice President responsible for their oil and gas division. Previously, he held key positions of increasing responsibility with Solvay, Emerald Kalama Chemicals, Dupont Dow Elastomers, Elementis and Dynea. Hogan attained a Bachelor of Science degree in Chemistry with Business Studies from the University of Abertay in Dundee, Scotland and a Master of Business Administration (MBA) from the University of Durham Business School in England.

US: The US Geological Survey (USGS) recorded a 0.8% year-on-year increase in total US cement shipments in the first half of 2021 to 50.4Mt from 50.0Mt in the first half of 2021. Domestic deliveries constituted 85% of the total at 42.6Mt, against 7.75Mt of imports (15%). Clinker imports were 1.23Mt, with a total value of US$81.6m. Turkey was the lead exporter of clinker to the US in 2020 at 470,000t (38%), followed by Saudi Arabia with 466,000t (38%) and Canada with 276,000t (22%).

US: Italy-based Bedeschi has been awarded a new order for the supply of two BED RNSH 1800/6 type apron feeders for Lehigh Cement’s integrated Mitchell plant in Indiana. The new feeders will be able to process up to 1300t/hr of crushed limestone and they will be placed in the primary and secondary crushing area to replace the old existing machines. They feature super duty design with CAT type chains and a Bedeschi super duty belt. As part of the installation Bedeschi has used a three dimensional survey to define the exact room availability in the existing plant. The new feeders will join three others at the plant that were already ordered as part of an upgrade programme for clay crushing and additive dosing. No value for the order has been disclosed.

Lehigh Cement, a subsidiary of Germany-based HeidelbergCement, resumed work on its US$600m upgrade project at the Mitchell plant in February 2021. Work on the upgrade was suspended in early 2020.

US: Sweden-based Bruks Siwertell has delivered a 5000 S road-mobile ship unloader to Ozinga. The product was originally ordered in 2020 and it provides a continuous rated unloading capacity of 300t/hr for vessels up to 5000dwt. It is Ozinga’s first order from Bruks Siwertell.

Ozinga specialises in concrete, dry bulk materials and natural gas energy solutions. It operates a network of truck, rail, barge and ship terminals mostly in the mid-west region of the US, where the new ship unloader will be used.

US/India: Judges from Yale University have awarded first place at the 2021 Yale Environment 360 video contest to Aarti Srivastava for her documentary film entitled the 'Story of Lumshnong.' The Indo-Asian News Service has reported that the film tracks the ‘disaster’ ensuing from the establishment of eight cement plants near the town of Lumshnong in a forested area of Meghalaya state. It claims that the intensive activity has led to water problems, high dust levels in Lumshnong and deforestation.