Design and Economic Evaluation for Production of Ethyl Lactate via Reactive Distillation Combined with Various Separation Configurations
Journal
Computer Aided Chemical Engineering
Journal Volume
44
Pages
127-132
Date Issued
2018
Author(s)
Abstract
Ethyl Lactate (L1E) has been holding as a promising replacement for the petroleum-based solvent in world markets because of its biodegradable and nontoxic identities. However, the process design for production and separation of L1E is challenging due to its complex kinetics. This work provides a modified design by using a side draw to obtain high purity L1E from the 1st reactive distillation (RD) column in reactive part. Besides, several separation configurations recycling reactants are implemented to investigate the most economic process design. The final result shows that the heat duty saved as much as 22.3 % in the reactive part by using a side draw. Also, the pervaporation (PV) module in the separation part is more economical than extractive distillation (ED) in terms of total annual cost (TAC). ? 2018 Elsevier B.V.
Subjects
Ethyl Lactate
Pervaporation
Process design
Reactive distillation
Type
book part