A sample from an SOP I've written.
A few years ago, as a young Chemical Engineer, I remember having been surprised to see gigantic chemical plants with their huge machinery producing tons of different products throughout the year. The reason for my surprise was the knowledge that these huge plants turn out to yield only 60 to 70 percent! I’m sure that with the advent of newer technologies, like automation for example, there must be improvement; however there is no question in my mind that there is a lot to be developed in improving the yield of these plants, and getting the productivity close to that elusive 100 percent. It is my dream to be a part of this endeavour, to help and push toward these future improvements that could potentially change the face of Chemical Engineering.
I have written many SOP's in the past. I myself had scored 1410/1600 in GRE and 113/120 in TOEFL. Will finish on time and give the best in quality.