CO2 Capture Plant
SINOCEAN TECHNOLOGY POWER
How CO2 is produced?
The flue gas containing CO2 (about 200 ℃) is cooled by reboiler 2
and then goes into the washing tower, and then into CO2 absorber
(or gravity absorber), most of the CO2 is absorbed by solvent, and
unabsorbed co2 gas will be dischared through top tower into the
atmosphere. The CO2-rich liquid from the bottom after by the rich
liquid heat exchangers, heat recovery after CO2 into the
regeneration tower (or gravity regenerator), rich liquid from
renewable column into the upper portion, by stripping desorption
portion CO2, and then enters the reboiler, so that one of the
further desorption of CO2. After poor liquid CO2 desorption from
recycled bottom outflow, after the rich liquid heat exchanger,
pumped to the water cooler, cooling into the absorber, and from
circulating solvent constitutes a continuous process of absorption
and desorption of CO2 desorption CO2 out of steam after cooling
separated and removed together with water purity of 99.0% (dry) or
more of CO2, the CO2 gas into the compressor pressurized cushion.
Pressurized carbon dioxide gas to a pressure of about 2.5MPa, in
the purification adsorption tower was filtered and high-boiling
impurities, and then further purified by molecular sieve and
dehydrated, dry carbon dioxide gas is condensed in the condenser
for cryogenic liquid carbon dioxide, liquid carbon dioxide and then
purified from the upper part of the tower into the purification
distillation tower, after distillation to obtain food-grade liquid
carbon dioxide, carbon dioxide from the bottom of the tower taken
out of cryogenic storage tank for later use. The CO2 meets
international food-grade quality standards.
1. Mature compound Amine low partial pressure CO2 recovery
technology could absorb
25% more and lower energy 30% than traditional MEA
(monoethanolamine solution )
Solution. And also compound amine solution has no corrosion for
2. Use steam from burning oil as heat for CO2 regenerator. And
extra water steam can be
supplied if needed. Lower running cost.
3. Add regeneration co2 gas cooling equipment and solution
filtering equipment; low solution consumption.
4. Use dry absorption purification technology and no need extra
energy and make sure
impurities like Sulphide, nitric oxide will be transferred and removed completely.
- Use high precision filter to make sure liquid co2 food grade and