Displaying items by tag: Trial

UK: Hanson, part of Germany-based HeidelbergCement, has supplied basalt from its Builth Wells, Powys quarry to the world’s first CO₂ sequestration field trial in the Brecon Beacons. The trial uses local live soil enriched with basalt for enhanced CO₂ sequestration in a reforested 11ha woodland. Enhanced rock weathering takes crushed basalt, a by-product of quarrying, and applies it to the soil to capture CO₂ and provide essential nutrients to fertilise trees and the fungi in the soil that support tree growth. The building materials producer says it is a method that has been proven to be successful in sugar beet and pea crops.

Sustainability director Marian Garfield said, “Hanson is focussed on climate protection and carbon reduction, and enhancing biodiversity net gain are two of our key 2030 commitments.” She added, “We are excited to be involved with this project, which aims to determine whether basalt can accelerate the removal of CO₂ from the atmosphere in the creation of new woodland and could therefore potentially play a vital role in helping tackle the climate crisis.”

India: Ambuja Cement has successfully sent two cement shipments to their destinations using biofuel-powered ships. Two of the company’s cement carriers delivered cement in India while running using biofuel derived from soya extract.

The biodiesel blend (B20) was in compliance with International Maritime Organisation sulphur content requirements and met International Convention for the Safety of Life at Sea (SOLAS) levels in terms of flash point requirements. No increase of NOx was observed with biodiesel blend as compared to low sulphur high-speed diesel (LSHSD), rather the emission level was found to be less. The reduction in CO₂ was found to be around 7% and the total life cycle reduction of CO₂ by life cycle analysis was measured to be around 21%, as the biodiesel from soya extract had a reduction of life cycle greenhouse gas emissions by 70%.

Following the successful initiative, the Directorate General of Shipping has approved biofuels trials for the rest of Ambuja Cement’s fleet, which are mainly deployed on the Indian coastal route.

Germany: Mexico-based Cemex subsidiary Cemex Zement has set up an innovation acceleration partnership called Carbon Neutral Alliance to support its work to achieve net zero CO₂ emissions at its Rüdersdorf cement plant by 2030. The association will work to develop industrial-scale demonstration projects in line with the company’s Future in Action programme. Its scope will include carbon capture and storage (CCS), the transformation of captured CO₂ into building materials, synthetic fuels and green hydrocarbons, hydrogen production and waste heat recovery (WHR). Cemex plans to share the knowledge gained by the alliance across its global cement network.

Managing director and Rüdersdorf plant manager Stefan Schmorleiz said, "It is expected that CO₂ will be further processed to convert to new forms of energy and materials for use locally by industrial, residential, and transport sectors. Together with our partners, we will take feasibility studies through to economic solutions to decarbonising cement production.”

Germany: ThyssenKrupp says that the four cement producer members of Cement Innovation for Climate (CI4C) are preparing to launch an industrial-scale trial of its Polysius Pure Oxyfuel carbon capture and storage (CCS) process. The renewably-powered process produces ‘refuel’ synthetic fuels such as kerosene for aviation.

Senior Proposal Manager Markus Sauer said,“CI4C and ThyssenKrupp are currently investigating the use of our polysius pure oxyfuel technology in a demonstration plant. Working with our long-standing customers, we would be delighted if we could demonstrate the efficiency of our technology for the first time on an industrial scale. By using this technology, the cement industry could significantly reduce its process-related CO₂ emissions and thus make an important contribution to climate protection.”

UK: Yorkshire Water is trialling a new concrete surface applicant designed to prolong the lifespan of concrete. It says that the alumina and zirconia silicate ceramic surface treatment protects concrete from wet/dry and freeze/thaw cycles, peeling, flaking, chalking and delaminating. This reduces the need for replacement of concrete structures, reducing CO₂ intensity by 43% compared to bare concrete, according to the company. Advanced materials producer Haydale supplied the product.

Senior project manager Jonathan LeMoine said “In early 2021 we will be using one of our capital partners to apply the material to a number of our chemical bunds. The results will be immediately apparent and will pave the way for a larger programme of works protecting our assets.” He added “We often invest in trialling new technologies and techniques to pave the way for lower emissions in our capital expenditure (CAPEX) and operating expenditure (OPEX) solutions. We’re excited to see the results from this trial, and hope that it will provide a low carbon alternative to demolishing and rebuilding.”

Sweden: Cementa’s Skövde plant working on project to optimise its grinding process and reduce the clinker factor of the cement it produces. The project is looked at grinding limestone separately as opposed to grinding it with clinker and gypsum, which it currently does. The plant is using a mill it only uses occasionally to grind the limestone to the desired size. A full-scale trial was run in the autumn of 2018. Products from the trial are now being tested at a laboratory.

Japan: Taiheiyo Cement says it has started the country’s first carbon capture and storage (CCS) test at its Fujiwara plant in Inabe, in conjunction with the Ministry of Environment. It is testing a chemical absorption method on kiln exhaust gases at the plant. Further installations on the project will continue during January 2019.

Canada: The Greater Vancouver Water District (GVWD) has struck a deal with Lafarge Canada to sell drinking water treatment residuals to the Richmond cement plant for use in cement production. The contract is for a three-year agreement up to a total cost of just under US$1m, according to Postmedia News. The deal follows a 12-month industrial trial that started in mid-2016.

The residuals will be used as a substitute for shale in the production process. Around 10,000t/yr of residuals will be used to replace 2100t/yr of red shale and conglomerate that are currently supplied from a quarry at Sumas Mountain, Abbotsford. The use of residuals doesn’t affect the plant’s Air Quality Permit following stack tests. As part of the agreement Lafarge will need to build additional storage capacity at its plant.

Saudi Arabia: Eastern Province Cement has started the trial operation of its new cement mill, which is expected to continue for three months until mid-June 2016. Commercial operation of the new mill will begin in the second quarter of 2016, the company said in a bourse statement. It added that the relevant financial impact is difficult to determine at this stage as it depends on market supply and demand.

Canada: The Nova Scotia government has said that hydraulic fracturing waste water is going to be shipped to a Lafarge Canada cement plant in Brookfield for use in cement production. Environment Minister Randy Delorey presented details of the pilot project at a community meeting in Truro.

Atlantic Industrial Services will ship 2Ml of waste water from holding ponds in Debert to Brookfield over a three week period. The water will be used as coolant in the kiln and evaporated at 700°C. Lafarge will test its equipment for residual inorganic materials before and after using the water.