Development of a High-Temperature Liquid-Phase min Using Molten Alkali Borates

Background and Objectives

The realization of Energy Green Transformation (GX) requires the establishment of large-scale CCUS systems min efficiently min CO2 and store or convert/reuse it. This research aims to establish a new high-temperature liquid-type CO2 capture method that enables highly efficient CO2 capture, particularly from industrial waste gases.

Research

We will advance the analysis and evaluation of our novel high-temperature liquid CO₂ capture method, which utilizes the world's first liquid-flowable CO₂ absorbent operable at elevated temperatures—the "melted alkali borate"—particularly focusing on the correlation between its CO₂ sorption/desorption characteristics and rheological properties at high temperatures. This will enable the further advancement of this CO₂ absorbent and the optimization of the continuous CO₂ capture process.

GX Expected effects of technological development

This research concerns min new, innovative, high-efficiency, low-cost min essential for realizing a zero-carbon society. This technological achievement is considered to significantly contribute to the academic and industrial development of this field as a crucial foundational technology for GX technologies in Japan and worldwide.