.  Draw a block flow diagram for apetroleum refinery that includes three differentseparation processes, five different conversionprocesses along with one or more finishing processes, andone supporting process to produce altogether ninecommercial fuels and materials from a sour crude oil.Clearly label all the feedstocks, processes, and products on yourdiagram including the type of process (separation, conversion,finishing, and support) and the intermediateproducts.   Make sure that all processes arecorrectly connected. Write down the principal objectivesof this refinery.
