Title:
Seawater Modified Spruce Sawdust's Higher Heating Value Optimization within the Biorefinery and the Zero-waste Circular Bioeconomy Concept
Author(s):
Politi, D.V., Nazos, A.G., Sidiras, D.K.
Document(s):
Paper
Poster
Abstract:
Global population growth, fossil fuel resources reducing, and climate change show the need for an alternative zero waste biobased circular economy. The biorefinery concept is the center of a bio-based economy. Biomass is a promising source of solid fuels that could compete with fossil fuels like oil and coal because of its low emissions of greenhouse gases and their acceptable performance in thermal processes. The present study contributes to this research by considering the enhancement of the higher heating value of spruce through the exploitation of the seawater modified biomass. The replacement of freshwater by seawater for biomass pretreatment is an alternative to overcome limitations in the availability of this natural resource. The impact of time, temperature, and seawater concentration on the modification process is investigated. Innovative kinetic models were applied to simulate the experimental data using the combined severity factor methodology combining the effect of temperature time and pH of a non-isothermal seawater modification process. Response surface methodology was also involved to define optimal pretreatment conditions. Spruce is a low-cost alternative source for combustion and the seawater modified spruce can be chosen as a bioenergy sustainable product within the concept of zero waste circular economy.
Keywords:
sawdust, spruce, seawater, higher heating value, severity factor
Topic:
Biomass Conversion to Intermediate Bioenergy Carriers and Sustainable Biofuels
Subtopic:
Hydrothermal processing
Event:
31st European Biomass Conference and Exhibition
Session:
5CV.1.3
Pages:
992 - 1000
ISBN:
978-88-89407-23-3
Paper DOI:
10.5071/31stEUBCE2023-5CV.1.3
Price:
FREE
