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Open Access. Powered by Scholars. Published by Universities.®

2019

Renewable energy

Physical Sciences and Mathematics

Series

Articles 1 - 4 of 4

Full-Text Articles in Engineering

Oxytree Pruned Biomass Torrefaction: Process Kinetics, Kacper Świechowski, Sylwia Stegenta-Dąbrowska, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec Oct 2019

Oxytree Pruned Biomass Torrefaction: Process Kinetics, Kacper Świechowski, Sylwia Stegenta-Dąbrowska, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Oxytree is a fast-growing energy crop with C4 photosynthesis. In this research, for the first time, the torrefaction kinetic parameters of pruned Oxytree biomass (Paulownia clon in Vitro 112) were determined. The influence of the Oxytree cultivation method and soil class on the kinetic parameters of the torrefaction was also investigated. Oxytree pruned biomass from a first-year plantation was subjected to torrefaction within temperature range from 200 to 300 °C and under anaerobic conditions in the laboratory-scale batch reactor. The mass loss was measured continuously during the process. The relative mass loss increased from 1.22% to 19.56% with ...


Proof-Of-The-Concept Of Spent Mushrooms Compost Torrefaction - Preliminary Studies Of Process Kinetics And The Influence Of Temperature And Duration On Calorific Value Of The Biochar, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec Jul 2019

Proof-Of-The-Concept Of Spent Mushrooms Compost Torrefaction - Preliminary Studies Of Process Kinetics And The Influence Of Temperature And Duration On Calorific Value Of The Biochar, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Poland is the 3rd producer of mushrooms in the world. Mushroom production in Poland accounts for nearly 25% of the total production in the EU, and it is still growing. One type of waste generated during mushroom production is mushroom spent compost (MSC), with a 5:1 (MSC: mushrooms) production rate. We investigated valorizing the MSC to produce fuel via torrefaction (‘roasting’, a.k.a. low-temperature pyrolysis). Specifically, we developed models for the MSC torrefaction kinetics using thermogravimetric analyses (TGA) and the effects of torrefaction temperature (200~300 °C) and process duration time (20~60 min) on the resulting biochar ...


Waste To Carbon: Preliminary Research On Mushroom Spent Compost Torrefaction, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec Jun 2019

Waste To Carbon: Preliminary Research On Mushroom Spent Compost Torrefaction, Ewa Syguła, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

Mushroom production in Poland is an important and dynamically developing element of diverse agriculture. Mushroom spent compost (MSC) is major waste generated during production, i.e., MSC: mushrooms is ~5:1. To date, the main use of MSC is soil application as organic fertilizer. To date, several methods of MSC treatment have been researched and developed including production of compost, bioethanol, biogas, enzyme lactase, xylo-saccharides, and hydrogen. Torrefaction may be considered a novel approach for biomass valorization. Thus, we are pioneering the potential use of MSC valorization via torrefaction. We explored valorizing the waste biomass of MSC via thermal treatment ...


Fuel Properties Of Torrefied Biomass From Pruning Of Oxytree, Kacper Świechowski, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec Apr 2019

Fuel Properties Of Torrefied Biomass From Pruning Of Oxytree, Kacper Świechowski, Marek Liszewski, Przemysław Bąbelewski, Jacek A. Koziel, Andrzej Białowiec

Agricultural and Biosystems Engineering Publications

The very fast growing Oxytree (PaulowniaClonin Vitro 112) is marketed as a promising new energy crop. The tree has characteristically large leaves, thrives in warmer climates, and requires initial pruning for enhanced biomass production in later years. We explored valorizing the waste biomass of initial (first year) pruning via thermal treatment. Specifically, we used torrefaction (‘roasting’) to produce biochar with improved fuel properties. Here for the first time, we examined and summarized the fuel properties data of raw biomass of Oxytree pruning and biochars generated via torrefaction. The effects of torrefaction temperature (200~300 °C), process time (20~60 min ...