METHOD OF PRODUCTION OF FUEL AND OF OBTAINING THERMAL ENERGY FROM BIOMASS WITH LOW ASH- MELTING TEMPERATURE, IN PARTICULAR FROM STILLAGE FROM BIOETHANOL PROCESSING

摘要

The invention relates to fuel formed by a fuel mixture, whose one component is formed by partially dewatered stillage from the bioethanol production and the other one are milled materials, where the ratio of total of sodium weight and potassium weight in the ashes to the weight of the other non-combustible components of a value less than 1:5.85 and/or it set up to achieve the resulting ash melting temperature of the mixture higher than 760° C. It also relates to the method of obtaining thermal energy from this mixture, in which first the critical combustion temperature causing slagging in the furnace and/or on the heat transfer surfaces and/or of the fluidized bed with melted ashes is ascertained and then the ratio of stillage from the production of bioethanol and to the biomass with low melting temperature of ashes to milled materials is set up in a ratio giving a higher ash-melting temperature of the resulting mixture than the ascertained critical temperature and then the obtained partially dewatered mixture is combusted in the combustion apparatus. It also relates to the method of obtaining thermal energy from waste in the preparation of the fuel mixture, e.g. from centrate, and to the apparatuses for the implementation thereof.