Pyrolysis for exploitation of biomasses selected for soil phytoremediation: Characterization of gaseous and solid products

Giudicianni, Paola; Pindozzi, Stefania; Grottola, Corinna Maria; Stanzione, Fernando; Faugno, Salvatore; Fagnano, Massimo; Fiorentino, Nunzio; Ragucci, Raffaele

doi:10.1016/j.wasman.2017.01.031

Cited by 34 publications

(28 citation statements)

References 75 publications

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“…This is in line with other studies that demonstrated that the biochar yield depends on pyrolysis temperature and retention time [28][29][30][31]. For example, biochar yield obtained from pyrolysis of pelletized sunflower at 400°C decreased from 36.17% to 33.19% at 500°C [27]. The retention time of 60 min resulted in slightly lower biochar yield when compared to time of 10 min.…”

Section: Pyrolysis Efficiency Moisture and Organic Matter Contentssupporting

confidence: 90%

“…Longer heating times (120 min) resulted in higher average biochar yield. The content of organic matter decreased with the increase in temperature which was reported in other studies [27].…”

Section: Pyrolysis Efficiency Moisture and Organic Matter Contentssupporting

confidence: 84%

“…The shape of the investigated pellets was typical for biomass pellets [26,27], i.e. cylindrical elongated and regular with the diameter of 8 mm and the length from 5 to 25 mm.…”

Section: Pelletized Sunflower Huskmentioning

confidence: 99%

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Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

et al. 2018

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Abstract. Pyrolysis of biomass residues from agriculture and food processing industry allows production of biochars with diverse physical and chemical properties for a wide range of applications in agriculture and environmental protection. Biochars produced from pelletized sunflower husks through slow pyrolysis in the range of temperatures (480-580°C) showed total carbon of 70.53%-81.96%, total nitrogen of 1.2%, alkaline pH (9.37-10.32), low surface area (0.93-2.91 m 2 g -1 ) and porosity of 13.23-15.43%. Higher pyrolysis temperatures resulted in lower biochar yields. With the increase in temperature the content of organic matter, nitrogen, Ca and Mg decreased whereas the increase in temperature resulted in higher contents of total carbon and phosphorus. Produced biochars showed potential for agricultural applications.

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Section: Pyrolysis Efficiency Moisture and Organic Matter Contentssupporting

confidence: 90%

“…Longer heating times (120 min) resulted in higher average biochar yield. The content of organic matter decreased with the increase in temperature which was reported in other studies [27].…”

Section: Pyrolysis Efficiency Moisture and Organic Matter Contentssupporting

confidence: 84%

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Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

et al. 2018

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“…P. nigra wood was selected as a precursor because it allows for the production of a biochar with a higher specific surface area compared to other lignocellulosic biomasses treated in the same pyrolytic conditions. 17 Moreover, P. nigra is among the faster growing trees for short rotation coppice, with an annual dry matter production of 17.8 Mg ha –1 year –1 . 17 Cellulose fibers were selected as model feedstock; cellulose is one of the three main biomass components, and the most abundant component in P. nigra wood (55.4 wt % cellulose, 11.6 wt % lignin, and 26.8 wt % hemicellulose).…”

Section: Experimental Sectionmentioning

confidence: 99%

“… 17 Moreover, P. nigra is among the faster growing trees for short rotation coppice, with an annual dry matter production of 17.8 Mg ha –1 year –1 . 17 Cellulose fibers were selected as model feedstock; cellulose is one of the three main biomass components, and the most abundant component in P. nigra wood (55.4 wt % cellulose, 11.6 wt % lignin, and 26.8 wt % hemicellulose). 17 …”

Section: Experimental Sectionmentioning

confidence: 99%

Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO₂ Adsorption and Separation

et al. 2018

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The potentialities in the use of biochars prepared by steam-assisted slow pyrolysis as adsorbents of gases of strategic interest (N2, CO2, and CH4) and their mixtures were explored. The biochars prepared from Populus nigra wood and cellulose fibers exhibited a narrow microporosity, with average pore sizes ranging between 0.55 and 0.6 nm. The micropore volume increased with the pyrolysis temperature, allowing CO2 and CH4 uptakes at room temperature between 1.5 and 2.5 mmol/g and between 0.1 and 0.5 mmol/g, respectively. These values are in line with those from the literature on biomass-derived carbon-based materials, exhibiting much higher porous features than those reported herein. As for the separation of CO2/N2 and CO2/CH4 gas mixtures, data showed that the prepared biochars exhibited good selectivities for CO2 over both N2 and CH4: between ca. 34 and 119 for a CO2/N2 mixture in typical post-combustion conditions (15:85, v/v) and between 14 and 34 for a CO2/CH4 mixture typical of natural gas upgrading (30:70, v/v).

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A state‐of‐the‐art review of the fate of heavy metals and product properties from pyrolysis of heavy‐metal(loid)‐enriched biomass harvested from phytoextraction

Kumar

Kan

et al. 2022

Env Prog and Sustain Energy

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Vegetation has successfully been used for cleaning up metal(loid) polluted water bodies and lands through extracting and accumulating of contaminants in their aboveground biomass (phytoextraction). As this remediation technique is approaching extensive demonstration scale application and potential commercialisation, research efforts have been investigating new ways to achieve valorization of its by-products, the heavy-metal-enriched biomass (HMEB). Biomass pyrolysis as an energy conversion technique represents a key step to numerous valorization options of HMEB.During the pyrolysis of HMEB, understanding the thermal decomposition pathways, and the migration and transformation of metal(loid)s are critical for the production of clean, safe and value-added end-products. This work performs a state-of-the-art review of the studies conducted on phytoextraction and biomass pyrolysis of HMEB with emphasis on the properties of pyrolysis products as well as the behavior of heavy metal(loid)s during pyrolysis in relation to HMEB feedstock properties and the variables of the process.

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Pyrolysis for exploitation of biomasses selected for soil phytoremediation: Characterization of gaseous and solid products

Cited by 34 publications

References 75 publications

Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO₂ Adsorption and Separation

A state‐of‐the‐art review of the fate of heavy metals and product properties from pyrolysis of heavy‐metal(loid)‐enriched biomass harvested from phytoextraction

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Pyrolysis for exploitation of biomasses selected for soil phytoremediation: Characterization of gaseous and solid products

Cited by 34 publications

References 75 publications

Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

Effects of pyrolysis parameters on the yield and properties of biochar from pelletized sunflower husk

Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO2 Adsorption and Separation

A state‐of‐the‐art review of the fate of heavy metals and product properties from pyrolysis of heavy‐metal(loid)‐enriched biomass harvested from phytoextraction

Contact Info

Product

Resources

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Assessing the Potential of Biochars Prepared by Steam-Assisted Slow Pyrolysis for CO₂ Adsorption and Separation