[elemnts12]

Hi,

So we are running a pilot plant which is producing acetone from the catalytic dehydrogenation of isopropanol. Before we ran the reaction, we created standards of varying mole fractions to create a calibration curve.

We now are running a reaction by feeding 0.5 ml/hr of isopropanol and 20 standard cubic centimeters of inert gas into the reactor. We then send the product gas to be examined by the GC. What happened based on our calibration curve and GC results, we computed an 83% mol fraction isopropanol presence exiting the reactor. But that is impossible since the inlet is containing 42% mol fraction isopropanol and the rest is carrier gas. Am I messing up somewhere in the calculation, such as forgetting a correction factor? Why are we getting such a high value for this? This suggests that there was mass made, which unless its some sort of magic reactor - it is impossible .

[curiouscat]

Can you describe how you callibrated?

Also how are you taking gas samples?