Low- and medium-grade fuel produced
from LFG has a heating value of approximately
16.8 MJ/m3. This heat value is roughly one-half
the heating value of natural gas. LFG that has
been further processed and treated to produce
high-grade fuel has a higher heating value (37.3
MJ/m3) than low and medium grade fuel, and can
be substituted directly for natural gas in pipeline
applications (CRA, 1996).
For more information about this matter, please
refer to Section 3 of the “Handbook for
the Preparation of Landfill Gas to Energy Projects
in Latin America and the Caribbean” or click
here.
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All LFG utilization facilities require an LFG recovery
of the LFG. An effective collection system, associated
with a LFG utilization facility, would also protect
against odor and other emissions, but as a byproduct
of the fuel recovery rather than as the primary
objective. In an effectively designed and operated
LFG collection system, these two sets of objectives
can be made
Low-grade LFG fuel -
Utilization of LFG as a low-grade fuel typically
requires minimal processing, involving condensate
removal chamber(s) as part of the LFG collection
system and moisture knockout pots to reduce the
amount of moisture in the gas stream.