CHOICE OF FEEDSTOCK ◆ Availability E What feedstocks are available at the potential plant ? E At what price? Purity E At what purities is are the feedstocks available? E Are the impurities > Inert? Affect reaction rates or separation system performance? Catalyst poisons or otherwise foul the process equipment? 1l/19/99 Input-Output Structure11/19/99 Input-Output Structure 8 CHOICE OF FEEDSTOCK u Availability ð What feedstocks are available at the potential plant site? ð At what price? u Purity ð At what purities is are the feedstocks available? ð Are the impurities ÿ Inert? ÿ Affect reaction rates or separation system performance? ÿ Catalyst poisons or otherwise foul the process equipment?