Farm and laboratory size biochar and heat coproduction in reducing atmosphere compact autothermal pyrolysis reactor
September 15-20, 2019
Local production of the biochar (BC) at the farm level remains unresolved regarding technology and operation/business model. A new patented technical solution of coproduction BC and heat in a Reducing Atmosphere (BC&H-RA)  as a compact autothermal pyrolysis reactor/boiler enters the market. The device covers a niche market of smaller size (5-50 kg/h of BC) [2, 4] production units offering fully automatic all day (24 h) operation with all ecological features of flue/exhaust gases. Fully automatic operation provides BC acc. to EBC quality standard from standard wood chips (BS-EN-ISO 17225) of wide particle sizes up to 45 mm of diameter. Under presented conditions, farm size reactor/boiler use 20 kg/h of BM (wood chips) or 1.7 m3 per day and produce 5 kg/h of BC or approx. 0.8 m3 per day at 26 kW continuous thermal output.
A possible implementation of alternative biomasses (BM) needs to be tested to assure BC - EBC quality with some corrections of process parameters. Compact pyrolysis unit can be installed as a domestic boiler producing hot water (max 90/70 ºC regime) and BC in big bags.
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Dušan Klinar, Nataša Belšak Šel, Štefan Čelan, and Klavdija Rižnar, "Farm and laboratory size biochar and heat coproduction in reducing atmosphere compact autothermal pyrolysis reactor" in "Bio-Char II: Production, Characterization and Applications", Franco Berruti, Western University, London, Ontario, Canada David Chiaramonti, RE-CORD, University of Firenze, Italy Ondrej Masek, University of Edinburgh, Edinburgh, United Kingdom Manuel Garcia-Perez, Washington State University, USA Eds, ECI Symposium Series, (2019). https://dc.engconfintl.org/biochar_ii/71