Qatar Economic Outlook 2021 - 2023
24
Technological Development of Gas
as Clean Energy
Natural gas is the cleanest burning fossil fuel
due to its relatively
low carbon emissions,
and assuming very little in the way of fugitive
emissions. Studies by the US Environmental
Protection Agency (US EPA) found that
energy production using LNG generates 45%
to 55% of the carbon dioxide emissions of
burning low-quality lignite coal.
Since the gas
industry has gone through
several stages, as described in Box (1-4), a
number of studies were conducted to
estimate the quantity of carbon emission
from LNG
process in each stage, and it has
been determined that CO2 emissions remain
lower than coal emissions by 20% to 53%.
This is why important LNG buyers consider
LNG to be the most appropriate transition
fuel
10
.
However, monitoring of fugitive methane
emissions
must be taken into account, as
methane is much more powerful a
greenhouse gas than carbon dioxide;
Methane is warming the planet by about 80
times more than carbon dioxide, according to
the United Nations' Intergovernmental Panel
on Climate Change
11
.
The economic
importance of natural gas
industry stems from the fact that it is not only
used to generate electric power but also is
one of the
most important intermediate
materials for many manufacturing industries
such as: plastics, fertilizers,
and household
uses in kitchen stoves and for space heating.
Thanks to the invention of the gas-to-liquid
(GTL) technology used during the past two
10
https://www.qatarenergy.qa/en/MediaCenter/Pages/newsdetails.asp
x?ItemId=3683
11
https://www.unep.org/news-and-stories/story/methane-emissions-
are-driving-climate-change-heres-how-reduce-them
decades, which reduced gas mass by 1/600
compared
to its original gaseous state, this
has facilitated storing and the transportation
of the gas safely and in large quantities, until
it has today become a vital global commodity
traded across the oceans to various parts of
the world. The volume of international trade
in LNG has increased from 238 million tons
in 2012 to 356 tons in 2020, demonstrating a
growth rate of 50%, as shown in Figure (1-4).
It is worth noting that methane emissions are
not limited to what leaks from the natural gas
process, which, for example, constitute 30%
of the total emissions in the United States
12
of America, as the rest comes from
agricultural activities such as raising livestock
at 27%, and land uses as waste centers at
17%, or natural fertilizer processes (animal
manure) at 9%, coal uses at 7%, and others
at 9%. Methane emissions can be reduced by
changing manure preparation including
capturing it, or
modifying animal feeding by
12
https://www.epa.gov/ghgemissions/overview-greenhouse-
gases#methane
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