Valorization of Different Fractions from Butia Pomace by Pyrolysis: H₂ Generation and Use of the Biochars for CO₂ Capture.

ABSTRACT: This work valorizes butiá pomace (Butia capitata) using pyrolysis to prepare CO₂ adsorbents. Different fractions of the pomace, like fibers, endocarps, almonds, and deoiled almonds, were characterized and later pyrolyzed at 700 °C. Gas, bio-oil, and biochar fractions were collected and characterized. The results revealed that biochar, bio-oil, and gas yields depended on the type of pomace fraction (fibers, endocarps, almonds, and deoiled almonds). The higher biochar yield was obtained by endocarps (31.9%wt.). Furthermore, the gas fraction generated at 700 °C presented an H₂ content higher than 80%vol regardless of the butiá fraction used as raw material. The biochars presented specific surface areas reaching 220.4 m² g^-1. Additionally, the

SUBMITTER: Nunes IDS 

PROVIDER: S-EPMC9658530 | biostudies-literature | 2022 Nov

REPOSITORIES: biostudies-literature