RESEARCH OF SOLID FUEL BRIQUETTES OBTAINING FROM BREWER’S SPENT GRAIN
Keywords:brewer’s spent grain, secondary raw materials, briquettes, solid fuel
The article describes the results of experimental studies of the use of barley brewer’s spent grain (BSG) for the production of alternative solid fuels. A method of obtaining briquettes by pressing is described. The calorific values of the raw material and the obtained samples were defined. According to the research results, it is determined that the value of the highest calorific value of dried brewer’s spent grain is 20005 kJ/kg, and created solid fuel samples – briquettes– in the range from 20173 to 20298 kJ/kg. The residual moisture content of the dried brewer’s spent grain was ~ 6.5% wt., the ash content of the dried brewer’s spent grain was in the range of 1.6÷2.3% wt. The residual moisture content of the briquettes was in the range of 0.5÷1.5% wt., and the ash content was in the range of 1.5÷1.6% wt. The obtained alternative solid fuel, which contains barley brewer’s spent grain, has a high calorific value, does not contain harmful impurities, does not require additional cleaning, does not require auxiliaries to form a solid form, provides additional disposal of industrial beer industry wastes, increases environmental friendliness by replacing traditional fuel resources and the absence of large amounts of harmful emissions. Created samples do not require binders and pre-cleaning before production.
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