Potassium Silicate as Low-Temperature Binder in 3D-Printed Porous Structures for CO Separation.

Activated carbon sorbents were directly 3D-printed into highly adaptable monolithic/multi-channel systems by using potassium silicate as a low-temperature binder. By employing emerging 3D-printing technologies, monolithic structured sorbents were printed and fully characterized using N, Ar, and CO-sorption and Hg-intrusion porosimetry. The CO-capture performance and the required temperature for active-site regeneration were evaluated by thermogravimetric analysis-looping experiments.