Factors affecting seawater-based pretreatment of lignocellulosic date palm residues

Research output: Contribution to journalJournal articleResearchpeer-review

  • Chuanji Fang
  • Mette Hedegaard Thomsen
  • Christian Grundahl Frankær
  • Juan Rodrigo Bastidas-Oyanedel
  • Grzegorz P. Brudecki
  • Jens Ejbye Schmidt

Abstract

Seawater-based pretreatment of lignocellulosic biomass is an innovative process at research stage. With respect to process optimization, factors affecting seawater-based pretreatment of lignocellulosic date palm residues were studied for the first time in this paper. Pretreatment temperature (180 °C–210 °C), salinity of seawater (0 ppt–50 ppt), and catalysts (H2SO4, Na2CO3, and NaOH) were investigated. The results showed that pretreatment temperature exerted the largest influence on seawater-based pretreatment in terms of the enzymatic digestibility and fermentability of pretreated solids, and the inhibition of pretreatment liquids to Saccharomyces cerevisiae. Salinity showed the least impact to seawater-based pretreatment, which widens the application spectrum of saline water sources such as brines discharged in desalination plant. Sulfuric acid was the most effective catalyst for seawater-based pretreatment compared with Na2CO3 and NaOH.
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Seawater-based pretreatment of lignocellulosic biomass is an innovative process at research stage. With respect to process optimization, factors affecting seawater-based pretreatment of lignocellulosic date palm residues were studied for the first time in this paper. Pretreatment temperature (180 °C–210 °C), salinity of seawater (0 ppt–50 ppt), and catalysts (H2SO4, Na2CO3, and NaOH) were investigated. The results showed that pretreatment temperature exerted the largest influence on seawater-based pretreatment in terms of the enzymatic digestibility and fermentability of pretreated solids, and the inhibition of pretreatment liquids to Saccharomyces cerevisiae. Salinity showed the least impact to seawater-based pretreatment, which widens the application spectrum of saline water sources such as brines discharged in desalination plant. Sulfuric acid was the most effective catalyst for seawater-based pretreatment compared with Na2CO3 and NaOH.
Original languageEnglish
JournalBioresource Technology
Volume245
Issue numberPART A
Pages (from-to)540-548
Number of pages9
ISSN0960-8524
DOI
Publication statusPublished - Dec 2017
Publication categoryResearch
Peer-reviewedYes

    Research areas

  • Biorefinery, Date palm residues, Lignocellulosic biomass, Pretreatment, Seawater
ID: 263143855