Next Article in Journal
Effectiveness and Sustainability of Grain Price Support Policies in China
Next Article in Special Issue
Density of Biogas Power Plants as An Indicator of Bioenergy Generated Transformation of Agricultural Landscapes
Previous Article in Journal
Use of Bio-Based Plastics in the Fruit Supply Chain: An Integrated Approach to Assess Environmental, Economic, and Social Sustainability
Previous Article in Special Issue
The Influence of Digestate on the Static Strength of Spring Rapeseeds (Brassica napus var. arvensis)
 
 
Article

Energy Consumption at Size Reduction of Lignocellulose Biomass for Bioenergy

1
Department Management and Entrepreneurship, Politehnica University of Bucharest, 060042 Bucharest, Romania
2
Department of Biotechnical Systems, Politehnica University of Bucharest, 060042 Bucharest, Romania
*
Author to whom correspondence should be addressed.
Sustainability 2019, 11(9), 2477; https://doi.org/10.3390/su11092477
Received: 29 March 2019 / Revised: 19 April 2019 / Accepted: 23 April 2019 / Published: 27 April 2019
In order to obtain bioenergy (biogas, biofuel) or pellets, different types of lignocellulosic biomass are subjected to a mechanical pretreatment, first by size reduction, then by separating, and ultimately by fracturing or bio-refining. Biomass processing mainly refers to a grinding process that occurs until reaching certain limits. The size reduction process, such as grinding, is an operation that is executed with different levels of energy consumption, considering biomass mechanical characteristics and the necessary grinding level. This paper, illustrates a comparative analysis of experimental results obtained by grinding multiple types of vegetal biomass (Miscanthus, corn stalks, alfalfa, willow) used in the process of bio-refining and bio-fracturing. Experiments were realized using both a laboratory knife mill Grindomix GM200 (Retsch GmbH, Haan, Germany), and a 22 kW articulated hammer mill, using different grinding system speeds and different hammer mill sieves. Results have shown that biomass mechanical pre-processing grinding leads to supplementary costs in the overall process through bio-refining or bio-fracturing in order to obtain bio-products or bio-energy. So, specific energy consumption for grinding using a hammer mill can reach 50–65 kJ/kg for harvested Miscanthus biomass, and 35–50 kJ/kg for dried energetic willow, using a 10 mm orifice sieve, values which increase processing costs. View Full-Text
Keywords: biomass; size reduction; hammers mill; energy consumption; Miscanthus biomass; size reduction; hammers mill; energy consumption; Miscanthus
Show Figures

Figure 1

MDPI and ACS Style

Moiceanu, G.; Paraschiv, G.; Voicu, G.; Dinca, M.; Negoita, O.; Chitoiu, M.; Tudor, P. Energy Consumption at Size Reduction of Lignocellulose Biomass for Bioenergy. Sustainability 2019, 11, 2477. https://doi.org/10.3390/su11092477

AMA Style

Moiceanu G, Paraschiv G, Voicu G, Dinca M, Negoita O, Chitoiu M, Tudor P. Energy Consumption at Size Reduction of Lignocellulose Biomass for Bioenergy. Sustainability. 2019; 11(9):2477. https://doi.org/10.3390/su11092477

Chicago/Turabian Style

Moiceanu, Georgiana, Gigel Paraschiv, Gheorghe Voicu, Mirela Dinca, Olivia Negoita, Mihai Chitoiu, and Paula Tudor. 2019. "Energy Consumption at Size Reduction of Lignocellulose Biomass for Bioenergy" Sustainability 11, no. 9: 2477. https://doi.org/10.3390/su11092477

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Back to TopTop