Journal
AICHE JOURNAL
Volume 59, Issue 10, Pages 3686-3701Publisher
WILEY
DOI: 10.1002/aic.14112
Keywords
molecular design; CAMD; group contribution methods; isomer generation; integer optimization; product design; refrigerant design; solvent design
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Funding
- National Energy Technology Laboratory's research under the RDS Contract
- National Science Foundation [1030168]
- Dow Chemical Company
- Directorate For Engineering
- Div Of Civil, Mechanical, & Manufact Inn [1030168] Funding Source: National Science Foundation
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A new framework to automate, augment, and accelerate steps in computer-aided molecular design is presented. The problem is tackled in three stages: (1) composition design, (2) structure determination, and (3) extended design. Composition identification and structure determination are decoupled to achieve computational efficiency. Using approximate group-contribution methods in the first stage, molecular compositions that fit design targets are identified. In the second stage, isomer structures of solution compositions are determined systematically, and structure-based property corrections are used to refine the solution pool. In the final stage, the design is extended beyond the scope of group-contribution methods by using problem-specific property models. At each design stage, novel optimization models and graph theoretic algorithms generate a large and diverse pool of candidates using an assortment of property models. The wide applicability and computational efficiency of the proposed methodology are illustrated through three case studies. (c) 2013 American Institute of Chemical Engineers AIChE J, 59: 3686-3701, 2013
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