Distillation Patents (Class 208/347)
- C1-C4 alkane removal (Class 208/351)
- Flash vaporizaton (Class 208/352)
- With heat recovery by indirect heat exchange (Class 208/353)
- Plural or combined with additional distillation (Class 208/354)
- With added gas or vapor (e.g., steam) (Class 208/356)
- Vacuum or pressure (Class 208/357)
- With liquid product recycle to rectification zone (Class 208/358)