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The fuel blending
process uses high British Thermal Unit (BTU) waste streams as
an alternative fuel to operate cement and aggregate kilns, boiler
and industrial furnaces, or incinerators. Waste fuels must have
a (BTU) value of at least 5,000 per pound to be considered for
fuel blending.
Waste disposed of through fuel blending
includes:
- Flammable Solvents
- Paint Waste
- Inks
- Petroleum Products
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 Because
the cement manufacturing process requires extremely high temperatures
(up to 3,500ºF), cement kilns are an ideal disposal technology
for these types of waste streams. In this process, waste fuels
are blended with a primary fuel source (coal or oil) to produce
the extreme temperatures required to turn limestone into calcium
oxide. The calcium oxide becomes a cement clinker. The clinker
produced in the rotary cement kiln is ground, mixed with gypsum,
and sold as Portland Cement. |
