My sister who lives in the city of cars, Detroit, has just informed me that she has found a way to greatly increase her auto milage and thus make her foot print smaller. Her "mechanic" has pumped nitrogen into the 4 tires of her 2007 Buick. This cost her $30. BUT, he guarantees that she will save her $50.00 due to the increased MPG. I doubt this.
1. Wouldn't the tire companies be touting this?
2. My sister travels 2000 miles a year - how can she save $50.00?
3. Isn't nitrogen part of a formula for laughing gas?
4. Is the "Mechanic" blowing more than nitrogen?
That refrigeration cost would have to be borne anyway even if nobody needed the by product of oxygen production, nitrogen. If nobody needed pure oxygen, then pure nitrogen would be the product and pure oxygen would be the by product, something to be thrown away if nobody needs it.
It is quite possible that both oxygen and nitrogen are actually by products of argon production, an inert gas used in MIG and TIG welding.
"It is quite possible that both oxygen and nitrogen are actually by products of argon production, an inert gas used in MIG and TIG welding."
It's not a matter of one or another gas being a by-product, the folks in the industrial gas business have processes to separate and sell all these gasses. Each individual gas is sold at it's market value, based on supply and demand.
I'm not sure I follow your post, BLE. We use nitrogen for cooling and as a purge gas. Oxygen is used for breathing and as an oxidizer. We can't use argon; it costs too much.