Work

Experimental VLE data for the AMP/PZ/H2O system under relevant water wash conditions for carbon capture applications

Year: 2024

Type: article

Abstract: New vapour liquid equilibrium (VLE) ebulliometric data for 2-Amino-2-methyl-1-propanol (AMP) and Piperazine (PZ) aqueous solutions are presented in this work for a range of temperatures, 30°C, 40°C and 50°C, and AMP:PZ molar ratios of 3:1.5/4:1/6:1 representative of those expected in water wash systems typically located at the top of absorber columns as an effective emission mitigation strategy in post-combustion carbon capture. The scatter in experimental data for AMP and PZ partial pressures suggests that obtaining VLE experimental data at low temperatures and low amine concentrations is challenging, despite its necessity. Experimental VLE data also suggest that an increase in the AMP/PZ ratio, as typically encountered in water wash processes, does not notably impact the volatility of each amine. The newly developed NRTL thermodynamic models in Aspen Plus ( Yi et al., 2024 ) and Matlab ( Hartono et al., 2021a ) for the quaternary system AMP/Pz/H 2 O/CO 2 show improvements in predicting the volatility of amines.

Source: Chemical Engineering Science

DOI: 10.1016/j.ces.2024.120992

Authors: Charithea Charalambous, Laura Herraiz, Ardi Hartono, Hanna K. Knuutila, Susana Garcia

Institutions: Heriot-Watt University, Norwegian University of Science and Technology

Language: English

Topic: Carbon Dioxide Capture Technologies

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: hybrid

Estimated APC paid: $3,930

OpenAlex ID: W4405288030

FWCI: 0.404

Cites: 27

Cited by: 3

Related to: 10