Transformation of abundant magnesium silicate minerals for enhanced CO2 sequestration
| Autor: | Matthew James Watson, Barney Shanks, Allan Scott, Vineet Shah, Christopher R. Cheeseman, Aaron T. Marshall, Nan Yang, Christopher Oze |
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| Rok vydání: | 2021 |
| Předmět: |
Electrolysis
Olivine Magnesium chemistry.chemical_element 02 engineering and technology Mineralization (soil science) Carbon sequestration engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology 01 natural sciences Silicate 0104 chemical sciences law.invention chemistry.chemical_compound chemistry law Greenhouse gas Environmental chemistry engineering General Earth and Planetary Sciences 0210 nano-technology Carbon General Environmental Science |
| Zdroj: | Communications Earth & Environment. 2 |
| ISSN: | 2662-4435 |
| Popis: | Global climate change related to anthropogenic CO2 emissions is one of the most significant challenges for the future of human life on Earth. There are many potential options for reducing or even eliminating atmospheric CO2 emissions including underground sequestration, carbon mineralization and ocean storage. One of the most promising materials for carbon mineralization is Mg(OH)2 which is highly reactive and capable of forming stable carbonates. Here we show a novel low-carbon method of producing Mg(OH)2, from globally abundant olivine-rich silicate rocks. A combination of acid digestion and electrolysis of olivine were used to produce Mg(OH)2 in a fully recoverable system. The use of Mg(OH)2 from olivine provides a viable pathway for significant industrial scale reductions in global anthropogenic greenhouse gas emissions. Magnesium hydroxide is a sustainable material for CO2 sequestration, according to an acid digestion and electrolysis method using olivine-rich silicate rocks in a fully recoverable system. |
| Databáze: | OpenAIRE |
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