Volume 23: Sustainable Energy Solutions for a Post-COVID Recovery towards a Better Future: Part VI

Capturing CO2 from Wood Fast Pyrolysis Yingying Sun, Beibei Dong, Liang Wang, Eva Thorin, Hailong Li

Abstract

To achieve the climate goal set by the Paris Agreement, negative emission technologies (NETs) will play an important role. Bioenergy with carbon capture and storage (BECCS) is one of the most promising of NETs. This work aims to find a suitable technology for capturing CO2 from fast pyrolysis, which include Monoethanolamine based chemical absorption (MEA-CC), temperature swing absorption (TSA) and calcium looping (CCL) are considered. By using validated models, the CO2 capture rate, CO2 purity and energy penalty are employed as key performance indicators to compare the performance of those technologies. It has been found that CCL has the highest CO2 purity, MEA-CC, TSA and CCL have similar CO2 capture rates and TSA has the lowest energy penalty. Results provide insights and suggestions about the selection of CO2 capture technology for pyrolysis.

Keywords BECCS, Negative emission technologies, Fast pyrolysis, Capture rate, Energy penalty