RSSA - A series of fortuitous events: Capture of carbon dioxide by milling of silicate minerals
29th January 2024 7:00 pm
Professor Zoe Shipton OBE FRSE
Professor of Geological Engineering
University of Strathclyde
In the Augustine United Church
41 George IV Bridge
Edinburgh, EH1 1EL
On Monday 29th January 2024, at 7pm
Milling minerals rich in magnesium and iron within CO2 gas has been proposed to capture carbon as metal-carbonates. Through a series of fortuitous events, we discovered that not only are rocks much better than trapping CO2 than individual minerals, but that this process can occur on all common silicate minerals. Polymineralic rocks are crushed worldwide to produce construction aggregate. If crushing processes could be conducted within a stream of effluent CO2 gas (such as produced from cement manufacture) our findings suggest that for every 100 Mt of hard rock aggregate sold, 0.4-0.5 MtCO2 could be captured as a by-product.
Professor Zoe Shipton is a geologist who researches the structural and permeability architecture of fault zones, geological processes of earthquake rupture propagation and constraining uncertainty in geological models.
Zoe is Professor of Geological Engineering at the University of Strathclyde, where she collaborates with scientists, engineers and social scientists to deliver subsurface solutions for the energy transition.
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