PRODUCTION OF ENERGY AND AGRIBIOCHAR WITHOUT RESIDUES AND WITH NEGATIVE CARBON FOOTPRINT WITH CHAB AND CHPAB CONCEPTS FROM THE ANNUAL RESIDUAL VEGETABLE AGRICULTURAL BIOMASS FROM ROMANIA.

Agriculture is and will be a permanent source of food and residual biomass, but also an energy consumer with high GHG emissions. In Romania 2018 agriculture consumed 6.05 TWh energy with an emission of 18.32 Tg.CO2e and at a collection level of 67% could be obtained 21Tg.db dry residual vegetable agricultural biomass with an energy potential of 100 TWh, energy resource untapped. With micro-gasification processes CHAB and CHBAP from chopped and from agripellets with a lot of ash that cannot be burned efficiently, Energy and Biochar are produced without residues and with negative carbon footprint. Biochar is also usable as an efficient agricultural amendment with which economically and safely sequester CO2 compared to known processes and with heat, that can be stored more efficiently than power, power is produced - when and as needed - and with negative carbon footprint. In a plant with CHAB concept from a 1 tonne of dry residual biomass is produced on average 2.5 MWht of heat and 200 kg of biochar with a minim negative carbon footprint of -400 kg.CO₂. Annually, from 20 Tg of agro-pellets with CHAB plants is produced 4 Tg of biochar and 50 TWh of thermal energy and 5.25 Gg of diesel will not be burned, having as ecological effect a negative carbon footprint of -18.25 Tg CO₂/year which offsets by 25% the CO₂ emissions of RO agriculture. CHBAP plants produce thermal and electrical energy with a cogeneration index of 5% and an almost zero carbon footprint with very low heat storage capacities and accumulator batteries. The fully automated CHAB and CHABAP plants is easy to uses by operators with medium training, contribute to increasing the level of employment in rural areas, contributing to the decarbonization of the Romanian economy in a GNDE requirements. [ABSTRACT FROM AUTHOR]