Analysis of Complex Separation Schemes in the Presence of Chemical Reactions

Hoffmaster, Warren R.; Hauan, Steinar

doi:10.1081/ss-120022571

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Feasibility Of Reacting Mixtures With Distillation Boundaries1

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2009

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“…It is well-known that reactions can circumvent azeotropes during distillation processes. − Such experiences encourage us to investigate the conditions under which the systems in Figure can feasibly circumvent phase equilibrium limitations. Let us again focus on RCM-430 from example 3.…”

Section: Feasibility Of Reacting Mixtures With Distillation Boundariesmentioning

confidence: 99%

Feasibility of Continuous Reactive Distillation with Azeotropic Mixtures

Guo

Chin

Lee

2004

Ind. Eng. Chem. Res.

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By using phase and reaction equilibrium information, the feasibility criteria for single-feed and double-feed reactive distillation systems are derived: When the products are a stable node and an unstable node and a part of the reaction equilibrium curve lies in the same distillation region as the products, both reactive rectifying and reactive stripping sections can feasibly produce pure products in a single-feed column. If one of the products is a saddle and no azeotrope exists between the products, a single-feed column is still feasible, but only with large reaction equilibrium constants. If a saddle product forms a minimum-boiling azeotrope with another product, an entrainer is needed to break this azeotrope in a double-feed column. If both reaction products are saddles, the same double-feed column configuration with an entrainer can produce pure products.

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Section: Feasibility Of Reacting Mixtures With Distillation Boundariesmentioning

confidence: 99%