Publication detail

A graphical approach for mixed ratio optimisation in the binary mixed amine solution

Wang, Y., Guo, L, Wang, B., Klemeš, J.J.

Original Title

A graphical approach for mixed ratio optimisation in the binary mixed amine solution

Type

journal article in Web of Science

Language

English

Original Abstract

Chemical absorption method plays an important role in the process of CO2 separation. One major problem for chemical absorption is huge energy consumption, which is affected by the performance of absorbents. Developing a type of absorbent with high absorption capacity and low regenerative energy consumption is a research topic that attracts attention. The combination of two or more amines is one way to develop new solvents. However, the change of amine liquid ratio can cause a series of complex nonlinear changes in absorption capacity, absorption heat, the heat of vaporisation and sensible heat. It is of interest to visualise the amine solution mixing ratio optimisation to help reduce the energy consumption and increase the absorption capacity. Derivative analysis of standardised vs variables diagram (DSVD), a kind of graphical method based on maximum benefit and minimum consumption, is proposed to determine the optimal mixing ratio of binary amine solution. This novel approach helps to visualise what kind of amines are not suitable for compounding, what kind of amines have the best compounding ratio, and how to determine the optimal compounding ratio. The optimal mixing ratio of the Methyldiethanolamine (MDEA) - Piperazine (PZ) system and MDEA - Monoethanolamine (MEA) were optimised by this method. The optimal ratio of MDEA - PZ and MDEA - MEA are 0.6 (PZ: MDEA = 0.6:0.4, wt.%) and 0.8 (MEA: MDEA = 0.8:0.2, wt.%).

Keywords

Carbon emissions capture and storage; Derivative analysis of standardised vs variables diagram (DSVD); Graphical method; Heat of absorption; Mixing ratio optimisation; Regeneration energy

Authors

Wang, Y., Guo, L, Wang, B., Klemeš, J.J.

Released

1. 6. 2022

Publisher

Academic Press

ISBN

0301-4797

Periodical

JOURNAL OF ENVIRONMENTAL MANAGEMENT

Number

311

State

United Kingdom of Great Britain and Northern Ireland

Pages from

114779

Pages to

114779

Pages count

13

URL

https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0301479722003528

BibTex

@article{BUT177108,
  author="Bohong {Wang} and Jiří {Klemeš}",
  title="A graphical approach for mixed ratio optimisation in the binary mixed amine solution",
  journal="JOURNAL OF ENVIRONMENTAL MANAGEMENT",
  year="2022",
  number="311",
  pages="114779--114779",
  doi="10.1016/j.jenvman.2022.114779",
  issn="0301-4797",
  url="https://www-sciencedirect-com.ezproxy.lib.vutbr.cz/science/article/pii/S0301479722003528"
}