Comparison of blockboards with core layers made of kiri (Paulownia spp.) and of spruce (Picea abies) regarding mechanical properties

Nelis, Philipp A.; Henke, Olaf; Mai, Carsten

doi:10.1007/s00107-019-01381-3

Cited by 6 publications

(3 citation statements)

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“…Paulownia species have been introduced to the United States [5]. In recent years, these trees have become more popular for timber purposes in warmer climates [6], and are cultivated in southern Europe [7]. Oxytree is a hybrid of Paulownia elongata and Paulownia fortunei, grown in vitro.…”

Section: Discussionmentioning

confidence: 99%

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Świechowski

Liszewski²,

Bąbelewski³

et al. 2019

Data

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The very fast growing Oxytree (Paulownia Clon in 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), soil type, and agro-technical cultivation practices (geotextile and drip irrigation) on fuel properties of the resulting biochars were summarized. The dataset contains results of thermogravimetric analysis (TGA) as well as proximate and ultimate analyses of Oxytree biomass and generated biochars. The presented data are useful in determining Oxytree torrefaction reaction kinetics and further techno-economical modeling of the feasibility of Oxytree valorization via torrefaction. Oxytree torrefaction could be exploited as part of valorization resulting from a synergy between a high yield crop with the efficient production of high-quality renewable fuel.

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Section: Discussionmentioning

confidence: 99%

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Świechowski

Liszewski²,

Bąbelewski³

et al. 2019

Data

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“…In addition to the importance of Paulownia culture in the fields of CO 2 mitigation, biomass, and wood production, this tree has great commercial potential due to the bioproducts it could produce. Paulownia wood can be used in the production of wood plastics and their composites (Khanjanzadeh et al, 2012;Ebrahimi et al, 2021), blackboards (Nelis et al, 2019), low-density woods (Li et al, 2018;Yu et al, 2018), lightweight particleboards (Nelis et al, 2018;Nelis and Mai, 2021), biopolymers (Rodríguez-Seoane et al, 2020), as well as energy sources (Zhang et al, 2017) such as bioethanol (Zhang et al, 2017;Kirikkaleli et al, 2022), biomethane (Janjić and Janjić, 2019), and biohydrogen (Zhang et al, 2022). In addition to the applications of Paulownia wood, the Paulownia flowers, leaves, and their remains can be utilized for medicinal (Yang et al, 2019;Adach et al, 2021;Dżugan et al, 2021;Huang et al, 2021;Nowak et al, 2022), animal feed (Al-Sagheer et al, 2019;Ganchev et al, 2019;Alagawany et al, 2022), and bioremediation applications (Tzvetkova et al, 2015;Miladinova-Georgieva et al, 2018a;Miladinova-Georgieva et al, 2018b).…”

Section: Investment Opportunities and Risks In Paulownia And Other Ca...mentioning

confidence: 99%

Paulownia trees as a sustainable solution for CO2 mitigation: assessing progress toward 2050 climate goals

Ghazzawy,

Bakr,

Mansour

et al. 2024

Front. Environ. Sci.

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Due to the progressive climate change on our planet, scientists are interested in solving this issue since it threatens not only certain regions or countries but also the world’s ecosystems and economies. Therefore, minimizing carbon dioxide (CO2) emissions and reducing atmospheric levels are global priorities. Thus, it is necessary at this moment to develop an appropriate approach to reduce or stabilize CO2 levels in the atmosphere. However, CO2 capture projects are long-term, low-profitable, and high-risk environmental projects. Consequently, it is necessary to find an appropriate and sustainable CO2 capture approach that is efficient in reducing atmospheric CO2 levels while having a safe impact on the environment. Although carbon (C) is the key basic component used to produce biological compounds by photosynthetic organisms in terrestrial plants, the C pathway is a key factor affecting the capture of CO2 by photosynthetic organisms. Among photosynthetic organisms, Paulownia, a multipurpose tree, is popular around the world for its timber and its potential role in CO2 sequestration. Paulownia spp. belongs to the Paulowniaceae family and comprises a group of trees. These trees are primarily found in southeastern Asia, particularly in China, and have been intentionally grown for more than two millennia due to their ornamental, cultural, and medicinal value. The number of Paulownia species varies depending on taxonomic classification, ranging from 6 to 17. Among them, Paulownia tomentosa, Paulownia elongata, Paulownia fortunei, and Paulownia catalpifolia are the most widely recognized and favored species. The present review provides a comprehensive technical-economic scenario for the capture of one million tons of CO2 by Paulownia trees (as a terrestrial plant model, grown on 2,400 ha−1). P. tomentosa can be utilized in agroforestry systems to mitigate greenhouse gas (GHG) emissions within urban cities and emphasize the carbon storage potential of agroforestry. In conclusion, Paulownia trees as an environmental mass project showed great encouragement to investors and governments to expand these types of projects to achieve global climate goals by 2050.

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“…Innovative methods without adhesive, such as dowel welding of blockboard core strips with 0-20 • dowel insertion angle, resulted in good mechanical properties of the boards [9]. A part of the studies investigated new designs of the structures [6,10] and various raw materials for the core [11][12][13]. Other studies were oriented to the joint types used for the core stripes, to their lengths and their influence on the properties of blockboards [9,14,15].…”

Section: Introductionmentioning

confidence: 99%

Effect of Variable Conditions of Exposure on the Physical and Mechanical Properties of Blockboards

Zeleniuc

Coşereanu

2022

Applied Sciences

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The growing demand for wood and the continued increase of the raw material price have resulted in companies using more efficient wood resources in wood-based products such as blockboard. These boards are used in the field of interior design, especially. The aim of this research was to evaluate the effect of variable environmental conditions on the physical and mechanical properties of blockboard (BK). Two types of commercial BK were exposed in variable environmental conditions (kitchen, bathroom and climatic chamber) for three months. The BK structures were composed of veneer (V) and high-density fibreboards (HDF) for the face sheets and glued, solid wood, resinous strips for the core. The temperature and relative humidity of the air (RH) ranged from 18 °C to 25 °C and from 25% to 90%, respectively. In the climatic chamber (CC), the dynamics of the parameter variations were different than in the other two exposure climates, being determined by the programmed cyclic changes in RH. The changes observed on physical and mechanical properties were more extreme for the blockboards tested in the CC than in the kitchen (K) and bathroom (Ba). After 3 months of exposure in the CC, the thickness and weight of the boards increased by 1.8 and 1.1 times, respectively, for veneered BK, and by 4.4 and 0.4 times, for BK with HDF faces, compared to values recorded in the kitchen. The panels exposed in the CC exhibited the highest increase in moisture content (MC): 41% for veneered BK and 82% for BK with HDF faces after three months of exposure, followed by those exposed in the bathroom and kitchen. Increases in MC determined decreases of flexural properties and soundness surfaces, more evident for HDF face structures compared to V ones.

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Comparison of blockboards with core layers made of kiri (Paulownia spp.) and of spruce (Picea abies) regarding mechanical properties

Cited by 6 publications

References 1 publication

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Fuel Properties of Torrefied Biomass from Pruning of Oxytree

Paulownia trees as a sustainable solution for CO2 mitigation: assessing progress toward 2050 climate goals

Effect of Variable Conditions of Exposure on the Physical and Mechanical Properties of Blockboards

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