ÃÑ 44ÆäÀÌÁö

25ÆäÀÌÁö º»¹®½ÃÀÛ

Prometheus
through the
electric cars. Electric cars do not need oil, so they do
Journal
m e m b r a n e
not need an internal combustion engine located under
¨ÏPolymer
to selectively
the hood of the car. Therefore, the development of a
permeate only
vehicle that fills the empty space under the hood with
carbon dioxide
a DAC device is being carried out. The Saudi Arabian
from the air
oil company, Aramco, is developing carbon capture and
and collect it. A
storage technology that can be applied to passenger cars
membraneisafilm
and trucks using mobile carbon capture technology. In
that selectively
general, engines convert 25 to 40 percent of fuel energy
t ra nsm it s a
into propulsion. The rest is emitted in the form of heat
specific molecule
through a radiator; and energy can be recovered by
¡ãThe membrane method uses the property
of the gas moving from high to low
or ion. T he
converting this wasted heat into energy to power carbon
pressure.
method uses the
dioxide capture and compressor operation. The carbon
property of the gas moving from high to low pressure.
collection system reacts with the material that dissolves
Professor Park explains, ¡°When pressure is applied to
this emission gas to collect carbon dioxide, compresses
the air, the air naturally moves from a high-pressure to
carbon dioxide, and stores it safely in the tank in the
a low-pressure film and passes through the film.¡± At this
vehicle. Commercial vehicles such as trucks generally
time,thefilmmembranefiltersgasessuchasnitrogenand
returntoagarageafteroperatinghours,socarbondioxide
oxygen and passes only carbon dioxide. The membrane
stored in such vehicles can easily be removed. Although
method ends in this process, so the membrane method
the principle is the same as the passenger car model, a
is known as an energy-efficient and eco-friendly process
larger energy recovery system can be installed in larger
because it doesn¡¯t emit harmful substances. Because
vehicles. As a result, it is possible to collect more carbon
of these characteristics, it is one of the most studied
dioxide than from a passenger car. Thus, the collection
methods at present. As a result, in order to maximize
rateofcarbondioxideemissionsfromtruckshasrisento
separation performance, various forms, such as hollow-
40percent,achievingthebestperformancesofar.
fiber types like wheat straw, and flat plate types were
In addition, there are carbon absorption facilities using
studied depending on the material and structure of the
theDACtechnology.DAChastheadvantageofbeingable
membrane.Inaddition,thebiggestadvantageofseparator
tobeinstalledanywhere,sothedevelopmentofabsorption
technology is that it has a small installation area, does
facilities is now taking place. A representative example
not require thermal energy, and is simple to operate.
is the DAC facility of Carbon Engineering, a Canadian-
Therefore, it is considered the only DAC technology that
based clean energy company. The company draws air
can continuously remove carbon dioxide from various
through large air contacts based on liquid absorption
environments, including small sources of pollutants and
technology.Thereafter,theabsorbedairispassedthrough
urbancenters.
a potassium hydroxide solution, which is an absorbent,
to collect carbon dioxide in the form of carbonate. The
¨ÏAramco
Useofcarbonaftercapturingitwith
DACtechnology
WaysofapplicationusingtheDACtechnologyonly
One of the main factors in carbon emissions is
transportation. However, this mobility can also be a way
tocollectcarbonifcombinedwithDAC.Arepresentative
class would be the automobile. Diesel and gasoline cars,
which used to use oil as fuel, are now being replaced by
¡ãAramcodevelopsmobilitywithDACtechnology.
23
MAY 2023

25ÆäÀÌÁö º»¹®³¡



ÇöÀç Æ÷Ä¿½ºÀÇ ¾Æ·¡³»¿ëµéÀº µ¿ÀÏÇÑ ÄÁÅÙÃ÷¸¦ °¡Áö°í ÆäÀÌÁö³Ñ±è È¿°ú¹× ½Ã°¢Àû È¿°ú¸¦ Á¦°øÇÏ´Â ÆäÀÌÁöÀ̹ǷΠ½ºÅ©¸°¸®´õ »ç¿ëÀÚ´Â ¿©±â±îÁö¸¸ ³¶µ¶ÇϽðí À§ÀÇ ÆäÀÌÁöÀ̵¿ ¸µÅ©¸¦ »ç¿ëÇÏ¿© ´ÙÀ½ÆäÀÌÁö·Î À̵¿ÇϽñ⠹ٶø´Ï´Ù.
»ó´Ü¸Þ´º ¹Ù·Î°¡±â ´ÜÃàÅ°¾È³» : ÀÌÀüÆäÀÌÁö´Â ÁÂÃø¹æÇâÅ°, ´ÙÀ½ÆäÀÌÁö´Â ¿ìÃø¹æÇâÅ°, ùÆäÀÌÁö´Â »ó´Ü¹æÇâÅ°, ¸¶Áö¸·ÆäÀÌÁö´Â ÇϴܹæÇâÅ°, ÁÂÃøÈ®´ëÃà¼Ò´Â insertÅ°, ¿ìÃøÈ®´ëÃà¼Ò´Â deleteÅ°