Isothermal Carbon Capture And Release Of Carbon Dioxide With Molecular Polyamines

Patent Status

Patent Pending

Brief Description

The problem of carbon dioxide (CO2​) emissions from industrial processes and mixed gas streams presents a significant global challenge, often addressed by energy-intensive and costly technologies. UC Berkeley researchers have developed an innovative solution for capturing and removing CO2​ in an energy-efficient, isothermal manner. The invention is a novel composition that uses a porous organic framework of solid molecular hexamine, specifically 2,3,6,7,14,15-hexakis(aminomethyl)triptycene, that assembles into a three-dimensional ammonium carbamate network. This unique network possesses two one-dimensional pores that selectively capture CO2​ upon exposure. This technology enables the capture and subsequent release of CO2​ without the large temperature or pressure swings required by conventional methods, offering a more sustainable and economically viable approach to carbon management.

Advantages

• Isothermal Process: Both the capture and release of CO2​ occur at a constant temperature, which significantly reduces the energy consumption and costs associated with regeneration.

• Reusability: The solid molecular framework is designed to be highly stable and reusable for multiple cycles without degradation.

• High Selectivity: The unique pore structure of the material allows for the preferential binding of CO2​ over other gases in a mixed stream.

• Scalability: The robust nature of the porous solid material is well-suited for integration into large-scale industrial capture systems.

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