waste fuel substitution techniques

CINAR, is active in the development of waste fuel substitution techniques for the cement and lime industries, i.e., insertion of whole or chipped tyres, plus a whole rane of engineered fuels into In-Line and Air-Through calciners as well as Bio or Engineered fuels through the kiln burner, which can significantly curtail kiln fuel costs and offer an alternative to tyre disposal.

Waste derived fuels and their use to substitute conventional fuels is a rapidly emerging technology, capable of destroying a broad range of the by-products of industrial, agricultural and biological waste in the most economical and pollution free way. Bio-wastes have the added advantage of being carbon neutral.

Bio-fuel derived from many sources (i.e., sawdust, agricultural waste, municipal waste, etc.) is used in both solid and gaseous forms to be burned in suspension, fluidised bed, or in internal combustion engines/gas turbine combustors. Extremely high substitution rates of the order of 90% have been achieved in various cement plants, utilising coconut shells, rice husk, sugar cane and/or mixed agricultural waste.

Temperature distribution along the combustion chamber of a car tyre incinerator.