We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
Effects of Acid and Organosolv Pretreatments on the Analytical Fast Pyrolysis Products of Green Coconut Fiber.
- Authors
de Araújo Padilha, Carlos Eduardo; Santiago, Luiz Eduardo Pereira; de Araújo Guilherme, Alexandre; Cavalcante, José Demétrio Nery; Thomas, Habila Yusuf; dos Santos, Everaldo Silvino; Melo, Dulce Maria de Araújo; Braga, Renata Martins; de Santana Souza, Domingos Fabiano
- Abstract
The present study evaluated the effects of acid and organosolv pretreatments on the analytical fast pyrolysis products of green coconut fiber (GCF), a residue from the coconut processing industry. Untreated and pretreated biomasses were characterized by chemical composition, crystallinity, functional groups, and thermal stability. Fast pyrolysis experiments were carried out in a pyrolysis–gas chromatography-mass spectrometry (Py-GC/MS) apparatus in the absence and presence of HZSM-5 zeolite. Both pretreatments effectively removed hemicellulose, ashes, and extractives, increasing cellulose content and crystallinity. Organosolv pretreatment with glycerol also promoted the reduction of Klason lignin in GCF from 35.68 to 28.68%, while acid pretreated GCF had 45.51% Klason lignin. In pyrolysis without a catalyst, acid and organosolv pretreatments reduced the selectivity of C1-C4 compounds from 47.05% to 23.22% and 25.31%, respectively. The generation of phenol and methylphenols from GCF increased after acid and organosolv pretreatments. With the aid of HZSM-5, high benzene-toluene-ethylbenzene-xylene (BTEX) values were obtained using acid-pretreated GCF (72.0%) and organosolv-pretreated GCF (71.1%) when compared to experiments with untreated GCF (64.9%). Pyrolysis vapors from organosolv-pretreated GCF also have a low selectivity of naphthalenes (9.63%). Thus, chemical pretreatments ratified their role in improving the bio-oil, raising the GCF as an opportunity to produce phenol or monoaromatics via fast pyrolysis.
- Subjects
COCONUT products; GREEN products; PYROLYSIS; HEMICELLULOSE; FIBERS; THERMAL stability; NAPHTHALENE derivatives
- Publication
BioEnergy Research, 2024, Vol 17, Issue 2, p1315
- ISSN
1939-1234
- Publication type
Article
- DOI
10.1007/s12155-023-10693-5