A novel sub-pilot-scale direct-contact ultrasonic dehydration technology for sustainable production of distillers dried grains (DDG)
Abstract
DDG is a major source of protein, calcium, phosphorus, and sulfur is arguably the most important byproduct of the bioethanol industry with increasing demand over the past few years. Reducing energy consumption in the DDG production process and energy recovery from DDG is vital for sustainable bioethanol productions. In this paper, a novel direct-contact multi-frequency, multimode, and modulated (MMM) ultrasonic dryer (US) was developed for the first time and has been applied in dehydration of wet distillers' grain (WDG). Ultrasonic drying (US) was combined with a convective airflow (HA) at different temperatures of 25 (room temperature), 50 and 70 °C to evaluate the impact of US, HA, and US + HA on drying kinetics, activation energy, chemical compositions, microstructure, and color of DDG. Semi-empirical kinetic models were developed and evaluating drying performances showed that the application of ultrasound significantly enhanced the drying rate and decreased the drying time (by 46%), especially at low drying temperatures. The activation energy for moisture removal in the presence of ultrasound was about 50% of that without ultrasound. The final dried distillers' grains product processed by ultrasonic drying had a brighter color, a higher available protein, a higher digestible protein (the lowest acid detergent insolublemore »
- Authors:
-
- Univ. of Illinois at Urbana-Champaign, IL (United States)
- Publication Date:
- Research Org.:
- Worcester Polytechnic Institute, MA (United States)
- Sponsoring Org.:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDA; National Science Foundation (NSF)
- OSTI Identifier:
- 1904778
- Grant/Contract Number:
- EE0009125; 2018-67017-27913; NSF IIP 16-24812 I/UCRC IA
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Ultrasonics Sonochemistry
- Additional Journal Information:
- Journal Volume: 85; Journal Issue: C; Journal ID: ISSN 1350-4177
- Publisher:
- Elsevier
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; Acoustics; Chemistry; Non-thermal drying; Modulated ultrasound; Dried distillers grains (DDG); Acid detergent insoluble crude protein; Process enhancement
Citation Formats
Malvandi, Amir, Nicole Coleman, Danielle, Loor, Juan J., and Feng, Hao. A novel sub-pilot-scale direct-contact ultrasonic dehydration technology for sustainable production of distillers dried grains (DDG). United States: N. p., 2022.
Web. doi:10.1016/j.ultsonch.2022.105982.
Malvandi, Amir, Nicole Coleman, Danielle, Loor, Juan J., & Feng, Hao. A novel sub-pilot-scale direct-contact ultrasonic dehydration technology for sustainable production of distillers dried grains (DDG). United States. https://doi.org/10.1016/j.ultsonch.2022.105982
Malvandi, Amir, Nicole Coleman, Danielle, Loor, Juan J., and Feng, Hao. Thu .
"A novel sub-pilot-scale direct-contact ultrasonic dehydration technology for sustainable production of distillers dried grains (DDG)". United States. https://doi.org/10.1016/j.ultsonch.2022.105982. https://www.osti.gov/servlets/purl/1904778.
@article{osti_1904778,
title = {A novel sub-pilot-scale direct-contact ultrasonic dehydration technology for sustainable production of distillers dried grains (DDG)},
author = {Malvandi, Amir and Nicole Coleman, Danielle and Loor, Juan J. and Feng, Hao},
abstractNote = {DDG is a major source of protein, calcium, phosphorus, and sulfur is arguably the most important byproduct of the bioethanol industry with increasing demand over the past few years. Reducing energy consumption in the DDG production process and energy recovery from DDG is vital for sustainable bioethanol productions. In this paper, a novel direct-contact multi-frequency, multimode, and modulated (MMM) ultrasonic dryer (US) was developed for the first time and has been applied in dehydration of wet distillers' grain (WDG). Ultrasonic drying (US) was combined with a convective airflow (HA) at different temperatures of 25 (room temperature), 50 and 70 °C to evaluate the impact of US, HA, and US + HA on drying kinetics, activation energy, chemical compositions, microstructure, and color of DDG. Semi-empirical kinetic models were developed and evaluating drying performances showed that the application of ultrasound significantly enhanced the drying rate and decreased the drying time (by 46%), especially at low drying temperatures. The activation energy for moisture removal in the presence of ultrasound was about 50% of that without ultrasound. The final dried distillers' grains product processed by ultrasonic drying had a brighter color, a higher available protein, a higher digestible protein (the lowest acid detergent insoluble crude protein), and a better surface profile with no compromise on minerals and fiber contents.},
doi = {10.1016/j.ultsonch.2022.105982},
journal = {Ultrasonics Sonochemistry},
number = C,
volume = 85,
place = {United States},
year = {Thu Mar 17 00:00:00 EDT 2022},
month = {Thu Mar 17 00:00:00 EDT 2022}
}
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