A new demonstration unit will replace some of the natural gas used to power a ground granulated black furnace slag (GGBS) plant in Port Talbot, Wales, with green hydrogen.
Building materials supplier Hanson today (11th Feb) shared details of the project, stating that it has collaborated with the Energy Safety Research Institute at Swansea University to look at reducing its carbon emissions in Port Talbot.
To achieve its ambitions, the unit will produce hydrogen through the process of electrolysis, where renewable energy is generated through wind and solar on site and directed into the electrolyser of water splitting device.
The electrolyser can efficiently use the energy to split water into hydrogen and oxygen. The hydrogen is then passed into the burner to enrich the combustion mixture, saving carbon emissions from the burning of natural gas.
Hanson’s project is part of the £9.2m ERDF funded rice project.
“It is estimated that cement is the source of just under 1.5 per cent of UK CO2 emissions,” said Marian Garfield, head of sustainability at Hanson UK.
“With demand for cement and cement replacement products predicted to increase by a quarter by 2030, researchers and industry are working hard to reduce the level of carbon emissions associated with production.
“As a leading manufacturer, we take our responsibility very seriously. In the UK we have already achieved a 30% reduction in CO2 emissions since 1990 across the business and have set an ambitious new target of a 50% reduction by 2030 from the same baseline.”
“We are constantly looking to improve energy efficiency and carbon reduction at our cement and Regen plants, so we are delighted to be involved with this innovative research project.”
Hanson’s Port Talbot plant produces Regen GGBS, which is used as a replacement for up to 80% of the cement in concrete.