Few-Step Iterative Methods for Distillation Process Design Using Trajectory Bundle Theory: Rigorous Minimum-Reflux Calculation

摘要

A general minimum-reflux calculation algorithm for multiocmponent nonideal mixtures is devel- oped from the geometrical theory of the arrangement of distillation trajectories. Various separation variants are considered, including intermediate variants and variants with one distributed component. Methods are sug- gested for determining the liquid and vapor compositions in the feed cross section. The algorithm covers special cases such as separation at a tangential pinch and separation with heat supply to or extraction form the feed cross section.