Comparison of biochar properties from biomass residues produced by slow pyrolysis at 500°C

Lee, Yongwoon; Park, Jinje; Ryu, Changkook; Gang, Ki Seop; Yang, Won Seok; Park, Young-Kwon; Jung, Jinho; Hyun, Seunghun

doi:10.1016/j.biortech.2013.08.135

Cited by 537 publications

(224 citation statements)

References 26 publications

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“…The three main components of biomass; hemicellulose, cellulose and lignin have different chemical structures and thus, correspondingly thermal stability [40]. Thermogravimetric analysis (Figure 2) indicated the thermal decomposi- tion behavior of lignocellulosic component for each biomass [39].…”

Section: Stability Indicatorsmentioning

confidence: 99%

“…The peaks observed between temperatures of 200˚C to 300˚C and 300˚C to 400˚C relate to the release of hemicellulose and cellulose, respectively [34]. Lignin has a much higher molecular weight and during pyrolysis it decomposes over a wider range of temperature, contributing for the formation of condensed aromatic carbon in biochar's structure [40]. The interval between 300˚C and 400˚C is the highest for all samples from 20% to 50% mass loss, the highest value exhibited by sawdust and the lowest by poultry litter.…”

Section: Stability Indicatorsmentioning

confidence: 99%

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Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars

Conz¹,

Abbruzzini²,

Andrade³

et al. 2017

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Pyrolysis temperature and feedstock type used to produce biochar influence the physicochemical properties of the obtained product, which in turn display a range of results when used as soil amendment. From soil carbon (C) sequestration strategy to nutrient source, biochar is used to enhance soil properties and to improve agricultural production. However, contrasting effects are observed from biochar application to soil results from a wide range of biochar's properties in combination with specific environmental conditions. Therefore, elucidation on the effect of pyrolysis conditions and feedstock type on biochar properties may provide basic information to the understanding of soil and biochar interactions. In this study, biochar was produced from four different agricultural organic residues: Poultry litter, sugarcane straw, rice hull and sawdust pyrolysed at final temperatures of 350˚C, 450˚C, 550˚C and 650˚C. The effect of temperature and feedstock type on the variability of physicochemical properties of biochars was evaluated through measurements of pH, electrical conductivity, cation exchange capacity, macronutrient content, proximate and elemental analyses, Fourier transform infrared spectroscopy (FTIR) and thermogravimetric analyses. Additionally, an incubation trial was carried under controlled conditions to determine the effect of biochar stability on CO 2 -eq emissions. Results showed that increasing pyrolysis temperature supported biochar stability regardless of feedstock, however, agricultural properties varied widely both as an effect of temperature and feedstock. Animal manure biochar showed higher potential as nutrient source rather than a 915 Agricultural Sciences C sequestration strategy. Improving the knowledge on the influence of pyrolysis temperature and feedstock type on the final properties of biochar will enable the use of better tailored materials that correspond to the expected results while considering its interactions with environmental conditions.

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Section: Stability Indicatorsmentioning

confidence: 99%

Section: Stability Indicatorsmentioning

confidence: 99%

Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars

Conz¹,

Abbruzzini²,

Andrade³

et al. 2017

View full text Add to dashboard Cite

show abstract

“…Lignin-richer biomass is considered to produce better charcoal (higher calorific value) and Lee et al (2013) showed that the higher lignin content, the higher is the biochar yield. Gani and Naruse (2007) stated that biomass with higher cellulose content pyrolyzes faster than biomass with higher lignin content.…”

Section: Chemical Composition Of Feedstockmentioning

confidence: 99%

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Novotny

Maia

Carvalho

et al. 2015

Rev. Bras. Ciênc. Solo

175

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Biochar (carbonized biomass for agricultural use) has been used worldwide as soil amendment and is a technology of particular interest for Brazil, since its "inspiration" is from the historical Terra Preta de Índios (Amazon Dark Earth), and also because Brazil is the world's largest charcoal producer, generating enormous residue quantities in form of fine charcoal and due to the availability of different residual biomasses, mainly from agroindustry (e.g., sugar-cane bagasse; wood and paper-mill wastes; residues from biofuel industries; sewage sludge etc), that can be used for biochar production, making Brazil a key actor in the international scenario in terms of biochar research and utilization). In the last decade, numerous studies on biochar have been carried out and now a vast literature, and excellent reviews, are available. The objective of this paper is therefore to deliver a critical review with some highlights on biochar research, rather than an exhaustive bibliographic review. To this end, some key points considered critical and relevant were selected and the pertinent literature "condensed", with a view to guide future research, rather than analyze trends of the past.

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“…Nutrient composition, pH, volatile components, density, porosity and other characteristics of biochar are affected by the feedstock and the conditions of the thermolytic conversion process used (Spokas et al, 2012;Lee et al, 2013;Sigua et al, 2014). In particular, the soluble, leachable components also differ among biochars (Jaffé et al, 2013).…”

Section: Introductionmentioning

confidence: 99%

Crop residue decomposition in Minnesota biochar-amended plots

Weyers

Spokas

2014

Solid Earth

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Abstract. Impacts of biochar application at laboratory scales are routinely studied, but impacts of biochar application on decomposition of crop residues at field scales have not been widely addressed. The priming or hindrance of crop residue decomposition could have a cascading impact on soil processes, particularly those influencing nutrient availability. Our objectives were to evaluate biochar effects on field decomposition of crop residue, using plots that were amended with biochars made from different plant-based feedstocks and pyrolysis platforms in the fall of 2008. Litterbags containing wheat straw material were buried in July of 2011 below the soil surface in a continuous-corn cropped field in plots that had received one of seven different biochar amendments or a uncharred wood-pellet amendment 2.5 yr prior to start of this study. Litterbags were collected over the course of 14 weeks. Microbial biomass was assessed in treatment plots the previous fall. Though first-order decomposition rate constants were positively correlated to microbial biomass, neither parameter was statistically affected by biochar or wood-pellet treatments. The findings indicated only a residual of potentially positive and negative initial impacts of biochars on residue decomposition, which fit in line with established feedstock and pyrolysis influences. Overall, these findings indicate that no significant alteration in the microbial dynamics of the soil decomposer communities occurred as a consequence of the application of plant-based biochars evaluated here.

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Comparison of biochar properties from biomass residues produced by slow pyrolysis at 500°C

Cited by 537 publications

References 26 publications

Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars

Effect of Pyrolysis Temperature and Feedstock Type on Agricultural Properties and Stability of Biochars

Biochar: Pyrogenic Carbon for Agricultural Use - A Critical Review

Crop residue decomposition in Minnesota biochar-amended plots

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