The process of purifying CO2 is obtained from burning of fuel, using
MEA (Monoethanolamin) in a aqueous solution which has been known
for quite some time. The plant uses a modernized process by which
high purity and food quality CO2 can be obtained. The plant has
the latest automatic control equipment and is easy to operate and
requires very little maintenance.
The
CO2 containing combusion gases passes through a pre-cleaning stage
and is brought into contact with an aqueous MEA solution which absorbs
CO2. Afterwards, the CO2 gas is desorbed from this solution and
compressed to the required pressure using special compressors. This
is followed by cleaning, drying and final cleaning stages of CO2
gas which is then liquified and filled in a storage tank.
The following gives a brief description of individual steps involved
in the plant. The System incorporates modular design. In standard
sized plants, the combusion and desorption, the absorption and wash-columns
the compressor station, the cleaning and drying station as well as
refrigeration plant are separate unit.
Storage
Tank system with CO2 evaporator and / or liquid CO2 pumps, cooling
tower, etc. dry ice machine, etc. are additional optional equipment
which could be offered at additional cost.