joshhan2000

I have posted here before and got a lot of good feed back. So here is my question. Why has there not been anyone else looking at new tech for absorbing CO2. The current tech date back about 5000 years to a goat bladder and some baked sea shells. It has not changed much since then. I know that maybe the electronics final caught up with the market to allow for reliable controls. When I started looking at this problem I contacted the right people and they gave me some advise. Basically I have seen the improvement in implication of the system but not much different then the goat bladder. There are two things you need to make a rebreather. O2 and sorb. Every thing else just make it work better but if get rid of any of those two it just does not work any more.


Ok guy hold on I going to do some math and I hope I will not loose anyone while doing this

Ideal gas law is PV=nRT
P is pressure
V is volume
n is moles
R is a gas constant
T is temp in Celsius

When a person is breathing for every mole of oxygen use 90% come out as CO2. Ca(OH)2 Has an equilibrium of 55%. Model by the balance equation of

Ca(0H)2 + .55CO2 ----à CaCO3 + H20

So using this info we can come up with the following math

(PVo – PVf ) * .9 * 74
__________________= gram of Ca(OH)2

RT * (.55)


Po is initial pressure of O2
Pf is final pressure of O2
R is gas constant
T is temp in Celsius
V = volume
.9 is the O2 to CO2 conversion
74 is the molecular weight of Ca (OH)2
.55 is the equilibrium point

As you can see there is lots of room for improvement. I have some idea I am going to be trying in the lab over the next 3 mouths. All I can figure is that you really can not see the chemistry so no one gives it a thought. But if you could realize that at best only half of the chemical on your back gets use at a time then you just might think more about it