Multi-objective optimisation of a Rectisol (TM) process for carbon capture

作者：Sharma Ishan; Hoadley Andrew F A^*; Mahajani Sanjay M; Ganesh Anuradda

来源：Journal of Cleaner Production, 2016, 119: 196-206.

DOI：10.1016/j.jclepro.2016.01.078

• Carbon capture
• Genetic algorithm
• Rectisol
• Process optimisation
• Process integration
• Carbon dioxide condensation

In the present work, a standalone Rectisol (TM) unit for carbon capture has been optimised with a Multi Objective Optimisation (MOO) perspective. The energy penalty and carbon dioxide capture rate have been simultaneously optimised to get the best operating conditions for various carbon dioxide capture rates. The Rectisol (TM) process typically has high refrigeration demand. Hence, any optimisation of Rectisol (TM) is incomplete without simultaneous optimisation of the refrigeration system. Hence, in this work, the refrigeration system has also been optimised with the help of a separate algorithm. Two options for pressurising the captured carbon dioxide, i.e. by condensation and pumping the carbon dioxide (Case-I) and by compression (Case-II), have also been compared. The results show that Case-I performs better for low capture rates compared to Case-II. However, the relative difference between the two diminishes with increasing capture rates.

• 出版日期2016-4-15