Size of CO2 molecule is found to be 393 angstrom. If a membrane is prepared or produced synthetically whose porous size is around 395 angstrom such that when air is allowed to pass through it, it should block all other components of air other than CO2. Or else it must be produced in such a way that it should block CO2 and allow all other components of air.
SOLUTION 2:-
(Amine-H2CO3) formed when heated to a temperature of 70 deg Celsius it gives Amine, water and carbon-di-oxide.
(Amine-H2CO3) heat Amine + H2O +CO2 ↑
This is how carbon-di-oxide can be extracted from the atmospheric air.
. The active material or the working substance used is AMINE along with water. Amine reacts with water to form (Amine-H2O).
Amine + Water (Amine-H2O)
When air is blown through this solution, all other components of except CO2 bubbles out and only CO2 reacts to give (Amine –H2CO3 ).
CO2 + (Amine-H2O) (Amine-H2CO3)
SOLUTION 3:-
The process involves pumping air from the atmosphere through a chamber containing sodium hydroxide, which reacts with the CO2 to form sodium carbonate. This carbon-containing solution is then mixed with lime to precipitate powdered calcium carbonate – a naturally occurring form of which is limestone. Finally, the "limestone" is heated to release pure CO2 for storage.
EVAD CONCEPT SELECTION
CRITERIA CONCEPTS
STANDARD | NaOH | AMINE | MEMBRANE | |
EFFICIENCY | ++ = HIGH + = MODERATE - = LOW | + | ++ | ++ |
MANUFACTURING COST | ++ = LOW + = MODERATE -- = HIGH | ++ | + | -- |
RELIABLITY | --= POOR ++ = EXCELLENT | -- | ++ | ++ |
MAINTAINANCE COST | - = HIGH ++ = LOW | - | ++ | ++ |
AVAILABILITY OF ACTIVE MATERIAL | ++ = MORE + = LESS -- = NOT EXISTED | ++ | + | -- |
TOLTAL MARKS | ---------------- | 14 | 18 | 14 |
++ = 4.
+ = 3.
- = 2.
-- = 1.
Using EVAD concept selection we found that AMINE process is best suited for the extraction of CO2.
AKASH NIDHI P S 1mso9isoo8
SANJAY V 1MSO9ISO84
BHARATH KUMAR P 1MSO9ISO25
ARUN V S 1MS09ISO19
MANISH KUMARA
MOHAMMED SHUAIB
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