Physico-chemical data required for the design of near-critical fluid extraction process

摘要: Before the chemical engineering design of a proposed process can be initiated, values (or good estimates) will required for number physico-chemical properties both pure components (these are usually comparatively easy to find) and relevant mixtures. Extraction processes involving near-critical solvents no more less demanding than other, conventional, in this respect. Figures 1.16, 1.17 1.18, example, also 9.2 9.3 show simplified layouts possible extracting beds solids or liquid streams with solvent. In these cases disengagement solute from solvent gas is achieved by throttling expansion. When carrying out simple type, phase equilibria mixtures material extractors solvent/solute separator. Mass transfer rate data sizing continuous Figure 1.18 9.2. They evaluating performance extractor units (V1, V2, V3 10.2 5 9.3) used batch extraction solids.