A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
Effect of sodium borohydride and hydrogen peroxide pretreatments on soda pulping of sugar maple (Acer saccharum) (2021)

Lehto, J., van Heiningen, A., Patil, R., Louhelainen, J., & Alén, R. (2021). Effect of sodium borohydride and hydrogen peroxide pretreatments on soda pulping of sugar maple (Acer saccharum). Journal of Wood Chemistry and Technology, 41(2-3), 128-136. https://doi.org/10.1080/02773813.2021.1922456

JYU-tekijät tai -toimittajat

Julkaisun tiedot

Julkaisun kaikki tekijät tai toimittajat: Lehto, Joni; van Heiningen, Adriaan; Patil, Ravikant; Louhelainen, Jarmo; Alén, Raimo

Lehti tai sarja: Journal of Wood Chemistry and Technology

ISSN: 0277-3813

eISSN: 1532-2319

Julkaisuvuosi: 2021

Volyymi: 41

Lehden numero: 2-3

Artikkelin sivunumerot: 128-136

Kustantaja: Taylor & Francis

Julkaisumaa: Yhdysvallat (USA)

Julkaisun kieli: englanti

DOI: https://doi.org/10.1080/02773813.2021.1922456

Julkaisun avoin saatavuus: Ei avoin

Julkaisukanavan avoin saatavuus:

Tiivistelmä

For recovering value-added wood-based organic material prior to delignification, sodium borohydride (NaBH4) and hydrogen peroxide (H2O2) pretreatments under alkaline conditions were performed before soda pulping of sugar maple (Acer saccharum) chips with sodium hydroxide (NaOH). In this investigation, it was determined whether the pulp yield could be increased by partly stabilizing the hemicelluloses by these pretreatments, and simultaneously obtains lower pulp kappa numbers. The results indicated that when aiming to the same kappa numbers (i.e., kappa numbers 14.3-20.5), roughly 3% higher pulp yield could be achieved if the chips were pretreated with alkaline 0.5% NaBH4 solutions, compared to those produced without such pretreatment or pretreated only with NaOH (i.e., without NaBH4). In contrast, pretreatments conducted with alkaline 2.5% H2O2 did clearly lower pulp yields at the same kappa number range (14.0-22.7) when compared to the reference cooks conducted with NaOH pretreated materials. However, an increase in the H2O2 charge of the pretreatment from 2.5% to 5.0% had a clearly beneficial effect, as the pulp yield and kappa numbers after pulping of 5.0% H2O2 pretreated pulps were comparable to the reference cooks.

YSO-asiasanat: massanvalmistus; esikäsittely; vetyperoksidi; natriumhydroksidi; vaahtera

Vapaat asiasanat: hydrogen peroxide; pretreatment; soda cooking; sodium borohydride; sugar maple

Liittyvät organisaatiot

OKM-raportointi: Kyllä

Raportointivuosi: 2021

Alustava JUFO-taso: 1