Engineers this is a serious problem.How to maintain a temperature of 450celcius degres in a chaimber?

Question

I'm doin a project to produce silver impregenated activated carbon.finish the production in 50 minutes but now it takes 3hours which is a loss.
This is the whole thing!
We put 6 canisters inside the chaimber filled with activated carbon and inside of it we mix silver nitrate solution(40% of the weight of the carbon) and mix it before heating it.We have 6 L.P gas burners inside the chaimber and we want to heat it for 450 degrees.We were planning to get rid of the steam within 20 minutes(practically it takes 2 hours) .So i need to find a method to increase the heat transfer rate inside the chaimber and maintain a steady temperature of 450degrees.
If we could get rid of the steam from 6 canisters(length of a canister is 700mm) within 30 minutes we are done.But how? know only 2 methods
1.By drying the mixture outside and do the pyrolysis process inside the chaimber.
2.finding a method to transfer heat uniformly inside the canister

wt douthink?

Ed ur answer is really sensible and it hits the point.But the problem is if i change the AgNO3 solution everything will change.Coz AgNO3 solution is made in the most precise maner so i cant change it.

I agree with the vacuum thing.Thats a good idea.
If u get to know any other methods please do mail me.My email address is
[e-mail]

Answer 1

Provide circulating air, increasing airflow around the canisters

Pulling a partial vacuum. Doesn't sound as if you could do it

Pulling a partial vacuum on the canisters prior to putting them in the oven.

Changing the heating method, as perhaps by induction.

Choosing an orientation of the canisters so airflow around them is optimized

Increasing the concentration of the silver nitrate so less water has to be removed.