Cleaning Polymerization Reactor

Is the " hard" polymer reacting with the Al walls? Or just sticking?

Teflon coating comes to mind, but not knowing the specifics there's not much more to say.

Agree with Slack. Ask the chemist, unless YOU are the chemist.

it just sticking, and there's no one (in my co.) know how to stop formation of undesired and hard polymer, that's why I'm asking.

by the way I'm chemical engineer.

There's your problem.

Somewhere in the archives there should be a process description document that was created by the design team, and that document will have the Process Chemist's input to it. There will also be a Commissioning Report document. Find those documents, read them, and discover why the process is doing what it is doing now instead of what it was doing at the time it was commissioned.

What if it is a stolen technology without documents and without proper know how information? These days tea shops and engineering workshop look almost alike. Lots of things are cooked up and you see all this mesh all over. Perhaps a new engineer may not have access to the documents as company may like to protect their some vital secretes. I think this person should tell why he does not have access to the company documents. Is he asking you to do that job?

actually I think so, and I search for this for my self because I want to over come this problem which delay the start up and takes more efforts to clean it manually.

I agree. Also, remember that Teflon has operating temperature restrictions and they might be exceeded during use of the Polymerization step; that depends a lot on the type of polymer reactor and how it is operated.

Well,

We shouldn't have to tell that to a chemical engineer, should we?

More than 300C for PTFE is sure a problem. At 400C it decomposes. There is softening after 250C which may result into bulging and deformation of the surface in thick films.

Acrylic may get soften and also dissolve in Acetone and perhaps then you can remove it. This can work on room temperature itself. It may also be possible for you to recover Acetone from debris. If your chamber wall is also of similar material then be careful. We never clean PCB with Acetone as it may dissolve some plastic parts. It can also leave some white residue on the surface but not sure about its chemical contents that may be left on the surface. You can see this even on your hands if you clean in Acetone. May be a second cleaning in Ethyl Alcohol can be done.