Traditionally, refineries recover diesel as a direct product from the atmospheric crude tower. With continuing changes in diesel quality and increased diesel demand, keeping with that tradition leaves recoverable diesel behind. The fewer the processing steps, the better the diesel and the easier the diesel treatment. Keeping diesel out of the FCC maximizes diesel value. Diesel slipping into the vacuum unit restricts downstream capacity. For revamps, adding alternate diesel production locations creates strategies to maximize unit performance and minimize investment. Even for new units, examining all of the options and using a less conventional approach often increases yields and reduces investment compared to slavish application of conventional practice.
展开▼
