Biochar-driven simplification of the compositions of cellulose-pyrolysis-derived biocrude oil coupled with the promotion of hydrogen generation

Chenxi Wang, Hanwu Lei, Rongge Zou, Moriko Qian, Wendy Mateo, Xiaona Lin, Roger Ruan

Research output: Contribution to journalArticlepeer-review

Abstract

The corn stover originated biochar was developed to catalyze and simplify the compositions of biocrude oil from cellulose pyrolysis. The generation of common species such as furans and (anhydro)-sugars in the biocrude oil from cellulose pyrolysis was weakened remarkably in the presence of biochars, while the formation of phenol and alkylphenols was enhanced. The formation of hydrogen was favored when the biochar was presented. For example at the temperature of 600 °C and biochar to cellulose ratio of 3, about 78 vol% of hydrogen was detected, increased from around 48 vol% for non-catalytic pyrolysis. Despite 10 cycles of reuse, the biochar remained a good activity towards promoting the generation of hydrogen and monomeric phenols. This work relates to a new access to simplify the compositions of biocrude oil and produce renewable hydrogen energy through the low-cost, simple, and highly stable biochar catalyst.

Original languageEnglish (US)
Article number125251
JournalBioresource Technology
Volume334
DOIs
StatePublished - Aug 2021

Bibliographical note

Funding Information:
This study was supported by the Agriculture and Food Research Initiative Competitive Grant no. 2016-67021-24533 and 2018-67009-27904 from the National Institute of Food and Agriculture, United States Department of Agriculture. We are grateful for the help from Dr. Aftab Ahamed with the GC/MS analysis in Bioproducts, Sciences, & Engineering Laboratory (BSEL). And we also acknowledge Dr. Valerie Lynch-Holm and Dr. Dan Mullendore in Franceschi Microscopy & Imaging Center (FMIC) at Washington State University involving the SEM in this work.

Publisher Copyright:
© 2021 Elsevier Ltd

Keywords

  • Biochar
  • Biocrude oil
  • Cellulose pyrolysis
  • Hydrogen
  • Monomeric phenols

PubMed: MeSH publication types

  • Journal Article

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