Environmental Engineering Reference
In-Depth Information
ion: An atomic particle that has
a charge.
mass: The amount of physical
matter in an object.
methane: A gas used as a fuel that
is the main ingredient in natural
gas. It is a compound of hydrogen
and carbon.
nonrenewable: A resource of
which there is only a certain
amount. Sources such as
coal, natural gas, and oil are
nonrenewable.
photosynthesis: The process
by which plants use energy from
the Sun to turn water and carbon
dioxide into food; they then give
off oxygen.
propane: A type of gas that may be
used as a fuel.
prototype: The i rst version of
an invention, used to test out the
invention.
rei ned: Made more pure through a
chemical process.
renewable: A resource that never
gets used up. Energy sources such
as sunlight, wind, and biofuels
are renewable; sources such
as coal, natural gas, and oil are
nonrenewable.
steam-methane reforming:
The most common method to
get hydrogen out of methane
gas, in which the methane reacts
chemically with extremely hot
steam.
synthesis gas: Also called syngas,
a mixture of hydrogen and carbon
monoxide produced during the
middle of the coal gasii cation
process. When this gas reacts with
steam, it produces even more
hydrogen.
pipeline: A series of pipes that are
used to transport water, gas, or oil
from one location to another over
long distances.
power plant: A place for the
production of electric power, also
sometimes called a “power station.”
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