Levulinic acid production from wood with green solvents

SEMERCİ N. I., GÜLER F.

JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY, cilt.41, sa.1, ss.58-64, 2020 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 41 Sayı: 1
  • Basım Tarihi: 2020
  • Doi Numarası: 10.1080/02773813.2021.1873388
  • Dergi Adı: JOURNAL OF WOOD CHEMISTRY AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Agricultural & Environmental Science Database, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Sayfa Sayıları: ss.58-64
  • Anahtar Kelimeler: Lignocellulosic biomass, levulinic acid, protic ionic liquid, gamma-valerolactone
  • Ankara Üniversitesi Adresli: Evet

Özet

In this work, protic ionic liquid, 1-methylimidazolium hydrogen sulfate (HMIMHSO4) and gamma-valerolactone (GVL) were explored with respect to their effects on levulinic acid production directly from cotton stalks and pine using the acidic catalyst, CrCl3.6H(2)O in a hydrothermal reactor. GVL as a biomass-derived solvent resulted in higher yields of levulinic acid compared to HMIMHSO4 which was attributed to the higher lignin depolymerization capacity of the solvent and GVL's capability for stabilization of the solvated protons. The increasing water content of the media from 10% to 20% enhanced the production and the yields. GVL gave the maximum levulinic acid concentration and yield from pine; 21.4 g/L and 78%, respectively when the reaction was conducted at 180 degrees C and 10% biomass loading with 20% water and 0.1 M CrCl3.6H(2)O for 4 h.