CO2 Adsorbents Based on MgO Nanoparticle Clusters Coated with Alkali-Metal Salts

Technology

The manufacturing process begins with creating surfactant-coated MgO nanoclusters in a non-aqueous solvent. Subsequently, the clusters are coated with alkali-metal salts through a series of solution dispersions and evaporations, thereby enhancing their CO2 adsorption capacity. When exposed to a gas stream containing CO2, the coated nanoclusters adsorb the CO2, effectively removing it from the stream through rapid uptake of large amounts at moderate temperatures.

Problem Addressed

This invention addresses the urgent need to reduce CO2 emissions from fossil fuel combustion to mitigate climate change. Coal-fired power plants and mobile sources are major contributors to CO2 emissions, making effective post-combustion carbon capture technologies essential. Current methods for CO2 capture can be energy-intensive and costly. This technology offers a more efficient and potentially cheaper alternative, facilitating easier implementation on a large scale or retrofitting into existing CO2-emitting technologies or plants, including mobile sources such as vehicles, trains and ships.

Advantages

• Lower energy requirements compared to traditional CO2 capture methods
• Scalability for large-scale implementation
• Versatility in application, as the technology can be used across various industries