In fact you have no choice.All depends on the admission you can get. I would recommend the safety center in the chemical engineering department of Texas A&M university. http://psc.che.tamu.edu/ As far as I know ,everyone( whatever you are a master or Ph.D)can get a job after graduation .It might be a choice if you just want a job in a large oil company like Chevron ,BP..... Good Luck !