Carbon-capture potential of industrial by-products for post-carbon society

Abstract

To contribute to the realization of carbon neutrality by 2050, the authors have focused on the fact that some of the by-products of social activities have the ability to fix carbon dioxide, and have envisioned the creation of a carbon-capture urban environment using these materials. Also, the authors have emphasized carbon capture capabilities of industrial waste disposal facilities named as “Disposal Facility CCS”, since these are where substances containing large amounts of free calcium accumulate. As described herein, the authors have emphasized several kinds of by-product as carbon capture materials, and propose datasets of these carbon capture capabilities by measurement using constant flow aeration type CO2 fixation testing, which we developed. Furthermore, using these datasets, the authors estimate the potential carbon capture capability of a specific industrial waste disposal facility as an example of “Disposal Facility CCS”, and demonstrate its relative effectiveness compared to that of forests. Furthermore, the authors estimate the carbon capture potentials of industrial by-products generated in Japan as some examples. Consequently, this study proposed carbon capture future society concept using CO2 fixation materials on the basis of the estimation results conducted in this study.