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Title: Effect of Autohydrolysis Pretreatment Conditions on Sugarcane Bagasse Structures and Product Distribution Resulting from Pyrolysis

Abstract

Pyrolysis has been increasingly perceived as a promising technology to produce biofuel precursors (bio-oil) from agricultural residuals; however, there is a significant quality gap between a bio-oil and the fuels used for transportation. In this paper, we autohydrolyzed pretreated sugarcane bagasse at three different conditions (180 °C–10 min, 180 °C–40 min, 200 °C–40 min), then we investigated the effect of this pretreatment on a subsequent pyrolysis stage. High-pressure ion-exchange chromatography (HPIC) and the 13C cross-polarization/magic angle spinning (CP/MAS) solid-state nuclear magnetic resonance (NMR) revealed that the autohydrolysis pretreatment significantly disrupted the hemicellulose fractions in the sugarcane bagasse and caused the breakage of lignin ether linkages in the sugarcane bagasse feedstocks. As the 31P NMR results indicated, the autohydrolysis pretreatment removed carboxylic acid groups up to 66.7 %, which could significantly address the corrosion problem of bio-oils. Heteronuclear single quantum correlation (HSQC) analysis suggested that the autohydrolysis pretreatment effectively lowered the presence of the oxygenated aromatic compounds in the bio-oils. Finally, gel permeation chromatography (GPC) analysis of the bio-oils indicated that the oils from severely pretreated sugarcane bagasse pyrolyzed at a low temperature (i.e., 400 °C) contained lower-molecular-weight components similar to those present gasoline products.

Authors:
 [1];  [2];  [3];  [4];  [1]; ORCiD logo [5]
  1. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering
  2. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering; Zhejiang Univ., Hangzhou (China). State Key Lab. of Clean Energy Utilization
  3. Southeast Univ., Nanjing (China). Key Lab. of Energy Thermal Conversion and Control. School of Energy and Environment
  4. Auburn Univ., AL (United States). Dept. of Biosystems Engineering
  5. Univ. of Tennessee, Knoxville, TN (United States). Dept. of Chemical and Biomolecular Engineering. Inst. of Agriculture. Dept. of Forestry, Wildlife, and Fisheries. Center for Renewable Carbon; Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States). Joint Inst. for Biological Science. Biosciences Division
Publication Date:
Research Org.:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Univ. of Tennessee, Knoxville, TN (United States)
Sponsoring Org.:
USDOE; National Science Foundation (NSF)
OSTI Identifier:
1468146
Alternate Identifier(s):
OSTI ID: 1515638
Grant/Contract Number:  
AC05-00OR22725; CBET-1333372
Resource Type:
Accepted Manuscript
Journal Name:
Energy Technology
Additional Journal Information:
Journal Volume: 6; Journal Issue: 4; Journal ID: ISSN 2194-4288
Publisher:
Wiley
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; biomass; bio-oil; fuels; NMR spectroscopy; pyrolysis

Citation Formats

Hao, Naijia, Lu, Kongyu, Ben, Haoxi, Adhikari, Sushil, Lacerda, Tais Bezerra, and Ragauskas, Arthur J. Effect of Autohydrolysis Pretreatment Conditions on Sugarcane Bagasse Structures and Product Distribution Resulting from Pyrolysis. United States: N. p., 2017. Web. doi:10.1002/ente.201700490.
Hao, Naijia, Lu, Kongyu, Ben, Haoxi, Adhikari, Sushil, Lacerda, Tais Bezerra, & Ragauskas, Arthur J. Effect of Autohydrolysis Pretreatment Conditions on Sugarcane Bagasse Structures and Product Distribution Resulting from Pyrolysis. United States. doi:10.1002/ente.201700490.
Hao, Naijia, Lu, Kongyu, Ben, Haoxi, Adhikari, Sushil, Lacerda, Tais Bezerra, and Ragauskas, Arthur J. Thu . "Effect of Autohydrolysis Pretreatment Conditions on Sugarcane Bagasse Structures and Product Distribution Resulting from Pyrolysis". United States. doi:10.1002/ente.201700490. https://www.osti.gov/servlets/purl/1468146.
@article{osti_1468146,
title = {Effect of Autohydrolysis Pretreatment Conditions on Sugarcane Bagasse Structures and Product Distribution Resulting from Pyrolysis},
author = {Hao, Naijia and Lu, Kongyu and Ben, Haoxi and Adhikari, Sushil and Lacerda, Tais Bezerra and Ragauskas, Arthur J.},
abstractNote = {Pyrolysis has been increasingly perceived as a promising technology to produce biofuel precursors (bio-oil) from agricultural residuals; however, there is a significant quality gap between a bio-oil and the fuels used for transportation. In this paper, we autohydrolyzed pretreated sugarcane bagasse at three different conditions (180 °C–10 min, 180 °C–40 min, 200 °C–40 min), then we investigated the effect of this pretreatment on a subsequent pyrolysis stage. High-pressure ion-exchange chromatography (HPIC) and the 13C cross-polarization/magic angle spinning (CP/MAS) solid-state nuclear magnetic resonance (NMR) revealed that the autohydrolysis pretreatment significantly disrupted the hemicellulose fractions in the sugarcane bagasse and caused the breakage of lignin ether linkages in the sugarcane bagasse feedstocks. As the 31P NMR results indicated, the autohydrolysis pretreatment removed carboxylic acid groups up to 66.7 %, which could significantly address the corrosion problem of bio-oils. Heteronuclear single quantum correlation (HSQC) analysis suggested that the autohydrolysis pretreatment effectively lowered the presence of the oxygenated aromatic compounds in the bio-oils. Finally, gel permeation chromatography (GPC) analysis of the bio-oils indicated that the oils from severely pretreated sugarcane bagasse pyrolyzed at a low temperature (i.e., 400 °C) contained lower-molecular-weight components similar to those present gasoline products.},
doi = {10.1002/ente.201700490},
journal = {Energy Technology},
number = 4,
volume = 6,
place = {United States},
year = {2017},
month = {9}
}

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