Process boundary approach to separations synthesis

Pressly, Thomas G.; Ng, Ka Ming

doi:10.1002/aic.690450911

Cited by 13 publications

(12 citation statements)

References 25 publications

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“…For more quantitative design methods, we need to express them in the form of algebraic equations Ž . Pressly and Ng, 1999 . However, it is not apparent from the adjacency matrix, which saturation varieties are bounded by which edges.…”

Section: Identification Of Saturation ©Arietiesmentioning

confidence: 95%

Representation of high‐dimensional solid‐liquid phase diagrams of ionic systems

Samant

2001

AIChE Journal

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Section: Identification Of Saturation ©Arietiesmentioning

confidence: 95%

Representation of high‐dimensional solid‐liquid phase diagrams of ionic systems

Samant

2001

AIChE Journal

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“…Important advances in the representation of these systems have been achieved by Ng and co‐workers. The representation of the phase diagram using hyperplanes for linear systems or by a set of hyperplanes for nonlinear systems allows identifications of limits and regions of the system, facilitating identification of possible separation pathways 17. This type of tool allows one to work with any type of phase diagram, and thus includes hybrid processes such as distillation–crystallization 18.…”

Section: Multicomponent Systemsmentioning

confidence: 99%

On the design of crystallization‐based separation processes: Review and extension

2006

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An analysis is given of various aspects of the design of crystallization-based separation processes. A literature review is included for each of the different themes treated in the study. Special emphasis is placed on the usefulness of the relative composition diagram as a tool for identification of possible flow sheets for separations based on fractional crystallization. A series of rules are derived that may be of practical value in the use

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“…For this purpose, the satumethods, we need to express them in the form of linear alge-ration variety matrix is more useful. The row headings of this braic equations (Pressly and Ng, 1999). However, it is not matrix correspond to saturation varieties and the column headings correspond to the vertices of the corresponding digraph.…”

Section: Uimentioning

confidence: 99%

Representation of high‐dimensional, molecular solid‐liquid phase diagrams

Samant¹,

Berry²,

Ng³

2000

AIChE Journal

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A generic framework for the representation of multicomponent molecular solid-liquid phase diagrams in the form of digraphs is presented. Pure components, eutectic points, and saturation points in the solid-liquid composition space are represented as vertices of the digraph. These vertices are connected to form edges on the basis of the adjacency matrix, which is constructed by following a set of generic rules derived from the Gibbs phase rule. These edges form the boundaries of high-dimensional saturation varieties. Included in the framework is a procedure for plotting high-dimensional isobaric and isothermal isobaric phase behavior in the form of projections and cuts. With this framework, solid-liquid phase behavior of multicomponent systems can be easily represented and studied. Applications include facilitation of experimental deuelopment of highdimensional phase diagrams and synthesis of crystallization-based separation processes. The latter is illustrated with the separation of a quinary mixture.

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Process boundary approach to separations synthesis

Cited by 13 publications

References 25 publications

Representation of high‐dimensional solid‐liquid phase diagrams of ionic systems

Representation of high‐dimensional solid‐liquid phase diagrams of ionic systems

On the design of crystallization‐based separation processes: Review and extension

Representation of high‐dimensional, molecular solid‐liquid phase diagrams

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