top 100 grad engineering school vs not?

I know the ranks aren’t everything, but it’s just my bits of greed to have a degree from a well-known presitigious engineering grad schools.

However, how much does the name affect your job prospects in large chem. Engineering companies?

If you are interested in a Ph.D. then your advisor is the key to getting a good job after graduation. If you are interested in a Masters degree, then look for the specialization you are interested in and make sure that the school has a lot of companies coming to recruit.

How do I know if the school has connectsion to companies? Are they advertised in the website?

Look at their career center’s web page. They usually advertise the companies that come to recruit.