Consistency of biochar properties over time and production scales: A characterisation of standard materials

Ondřej Mašek; Wolfram Buss; Audrey Roy-Poirier; Walter Lowe; Clare Peters; Peter Brownsort; Dimitri Mignard; Colin Pritchard; Saran Sohi

doi:10.1016/j.jaap.2018.02.020

Consistency of biochar properties over time and production scales: A characterisation of standard materials

Ondřej Mašek^*, Wolfram Buss, Audrey Roy-Poirier, Walter Lowe, Clare Peters, Peter Brownsort, Dimitri Mignard, Colin Pritchard, Saran Sohi

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

108 Citations (Scopus)

Abstract

Users of biochar in the field require this product to reliably meet its declared specifications. For the first time, this work investigated, whether these specifications could be reproducibly obtained as a sole function of the thermal history of the biomass feedstock during slow pyrolysis, irrespective of the type and scale of the production unit. Using volatile matter content as a proxy for a wider set of biochar quality parameters, biochar from units at scales from grams to hundreds of kilograms, representing three main types of slow pyrolysis units (fixed bed, screw reactor and rotary kiln) were investigated. For the first time we showed that comparable biochar could be produced by these very different pyrolysis units, with good reproducibility within individual as well as among separate production runs.

Original language	English
Pages (from-to)	200-210
Number of pages	11
Journal	Journal of Analytical and Applied Pyrolysis
Volume	132
DOIs	https://doi.org/10.1016/j.jaap.2018.02.020
Publication status	Published - Jun 2018
Externally published	Yes

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title = "Consistency of biochar properties over time and production scales: A characterisation of standard materials",

abstract = "Users of biochar in the field require this product to reliably meet its declared specifications. For the first time, this work investigated, whether these specifications could be reproducibly obtained as a sole function of the thermal history of the biomass feedstock during slow pyrolysis, irrespective of the type and scale of the production unit. Using volatile matter content as a proxy for a wider set of biochar quality parameters, biochar from units at scales from grams to hundreds of kilograms, representing three main types of slow pyrolysis units (fixed bed, screw reactor and rotary kiln) were investigated. For the first time we showed that comparable biochar could be produced by these very different pyrolysis units, with good reproducibility within individual as well as among separate production runs.",

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AU - Mašek, Ondřej

AU - Buss, Wolfram

AU - Roy-Poirier, Audrey

AU - Lowe, Walter

AU - Peters, Clare

AU - Brownsort, Peter

AU - Mignard, Dimitri

AU - Pritchard, Colin

AU - Sohi, Saran

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AB - Users of biochar in the field require this product to reliably meet its declared specifications. For the first time, this work investigated, whether these specifications could be reproducibly obtained as a sole function of the thermal history of the biomass feedstock during slow pyrolysis, irrespective of the type and scale of the production unit. Using volatile matter content as a proxy for a wider set of biochar quality parameters, biochar from units at scales from grams to hundreds of kilograms, representing three main types of slow pyrolysis units (fixed bed, screw reactor and rotary kiln) were investigated. For the first time we showed that comparable biochar could be produced by these very different pyrolysis units, with good reproducibility within individual as well as among separate production runs.

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Consistency of biochar properties over time and production scales: A characterisation of standard materials

Abstract

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