Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement
Pretreatment is a crucial process in a lignocellulosic biorefinery. Corncob is typically considered as a natural renewable carbon source to produce various bio-based products. This study aimed to evaluate the performance of the hydrothermal-mechanical pretreatment of corncob for biofuels and biochem...
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MDPI AG
2022-06-01
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author | Jiraporn Phojaroen Thitirat Jiradechakorn Suchata Kirdponpattara Malinee Sriariyanun Jatupol Junthip Santi Chuetor |
author_facet | Jiraporn Phojaroen Thitirat Jiradechakorn Suchata Kirdponpattara Malinee Sriariyanun Jatupol Junthip Santi Chuetor |
author_sort | Jiraporn Phojaroen |
collection | DOAJ |
description | Pretreatment is a crucial process in a lignocellulosic biorefinery. Corncob is typically considered as a natural renewable carbon source to produce various bio-based products. This study aimed to evaluate the performance of the hydrothermal-mechanical pretreatment of corncob for biofuels and biochemical production. Corncob was first pretreated by liquid hot water (LHW) at different temperatures (140–180 °C) and duration (30, 60 min) and then subjected to centrifugal milling to produce bio-powders. To evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were investigated. The results indicated that the maximum fermentable sugars (FS) were 0.488 g/g biomass obtained by LHW at 180 °C, 30 min. In order to evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were 28.3 g of FS/kWh and 7.21 kg of waste/kg FS, respectively. These obtained results indicate that the combined hydrothermal-mechanical pretreatment was an effective pretreatment process to provide high energy efficiency and low waste generation to produce biofuels. In addition, the energy efficiency and waste generation will be useful indicators for process scaling-up into the industrial scale. This combined pretreatment could be a promising pretreatment technology for the production of biofuels and biochemicals from lignocellulosic valorization. |
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issn | 2073-4360 |
language | English |
last_indexed | 2024-03-09T22:42:29Z |
publishDate | 2022-06-01 |
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series | Polymers |
spelling | doaj.art-4ec5a7a1d5d04f62af153371e32c62e12023-11-23T18:35:52ZengMDPI AGPolymers2073-43602022-06-011412231310.3390/polym14122313Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic EnhancementJiraporn Phojaroen0Thitirat Jiradechakorn1Suchata Kirdponpattara2Malinee Sriariyanun3Jatupol Junthip4Santi Chuetor5Department of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandDepartment of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandDepartment of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandBiorefinery and Process Automation Engineering Centre (BPAEC), King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandFaculty of Science and Technology, Nakhon Ratchasima Rajabhat University, Nakhon Ratchasima 30000, ThailandDepartment of Chemical Engineering, Faculty of Engineering, King Mongkut’s University of Technology North Bangkok (KMUTNB), Bangkok 10800, ThailandPretreatment is a crucial process in a lignocellulosic biorefinery. Corncob is typically considered as a natural renewable carbon source to produce various bio-based products. This study aimed to evaluate the performance of the hydrothermal-mechanical pretreatment of corncob for biofuels and biochemical production. Corncob was first pretreated by liquid hot water (LHW) at different temperatures (140–180 °C) and duration (30, 60 min) and then subjected to centrifugal milling to produce bio-powders. To evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were investigated. The results indicated that the maximum fermentable sugars (FS) were 0.488 g/g biomass obtained by LHW at 180 °C, 30 min. In order to evaluate the performance of this combined pretreatment, the energy efficiency and waste generation were 28.3 g of FS/kWh and 7.21 kg of waste/kg FS, respectively. These obtained results indicate that the combined hydrothermal-mechanical pretreatment was an effective pretreatment process to provide high energy efficiency and low waste generation to produce biofuels. In addition, the energy efficiency and waste generation will be useful indicators for process scaling-up into the industrial scale. This combined pretreatment could be a promising pretreatment technology for the production of biofuels and biochemicals from lignocellulosic valorization.https://www.mdpi.com/2073-4360/14/12/2313hydrothermal-mechanical pretreatmentagricultural wastesenergy efficiencywaste generation |
spellingShingle | Jiraporn Phojaroen Thitirat Jiradechakorn Suchata Kirdponpattara Malinee Sriariyanun Jatupol Junthip Santi Chuetor Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement Polymers hydrothermal-mechanical pretreatment agricultural wastes energy efficiency waste generation |
title | Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement |
title_full | Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement |
title_fullStr | Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement |
title_full_unstemmed | Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement |
title_short | Performance Evaluation of Combined Hydrothermal-Mechanical Pretreatment of Lignocellulosic Biomass for Enzymatic Enhancement |
title_sort | performance evaluation of combined hydrothermal mechanical pretreatment of lignocellulosic biomass for enzymatic enhancement |
topic | hydrothermal-mechanical pretreatment agricultural wastes energy efficiency waste generation |
url | https://www.mdpi.com/2073-4360/14/12/2313 |
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