Refining of 2, 2-dimethylolpropionaldehyde and Recovering of the Excessive Raw Material

DOI

10.2991/icmea-16.2016.28How to use a DOI?

Keywords

Continuous Side-distillation, Aspen Plus, Refining and Recovery, Dimethylolpropionaldehyde, Methanol and Propylaldehyde, Orthogonal Experiment.

Abstract

This study establishes a method of refining the 2,2-dimethylolpropionaldehyde and recovering the methanol and propylaldehyde by continuous side-distillation and distillation, the process was simulated by Aspen Plus software. In addition, the effects of the theoretical stage numbers, feed stage, side-stream stage, reflux ratio and side-stream ratio are studied and optimized to obtain the optimal operating conditions. Under the optimal operating conditions, the mass fraction and yield of the 2,2-dimethylolpropionaldehyde in side-stream reach 99.01% and 99.91% respectively. After recycling the mixture from the side-distillation tower top, the total mass fraction of the methanol and propylaldehyde reaches 99.39%, and the yield of them reaches 99.96% and 99.99% respectively, meanwhile the mass fraction of the water reaches 99.99%.

Copyright

© 2016, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Sai-Jian SHI
AU  - Xin HUANG
AU  - Xiao-Yan CAO
AU  - Zheng-Gui GU
PY  - 2016/12
DA  - 2016/12
TI  - Refining of 2, 2-dimethylolpropionaldehyde and Recovering of the Excessive Raw Material
BT  - Proceedings of the 3rd International Conference on Material Engineering and Application (ICMEA 2016)
PB  - Atlantis Press
SP  - 175
EP  - 180
SN  - 2352-5401
UR  - https://doi.org/10.2991/icmea-16.2016.28
DO  - 10.2991/icmea-16.2016.28
ID  - SHI2016/12
ER  -