Imperial College London
Alternate

ProfessorBenoitChachuat

Faculty of Engineering, Department of Chemical Engineering

Professor of Process Systems Engineering
 
 
 
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Contact

 

b.chachuat Website

 
 
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Location

 

609Roderic Hill BuildingSouth Kensington Campus

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Summary

 

Publications

Citation

BibTex format

@article{Quek:2021:10.1016/j.seppur.2020.117938,
author = {Quek, VC and Shah, N and Chachuat, B},
doi = {10.1016/j.seppur.2020.117938},
journal = {Separation and Purification Technology},
pages = {1--11},
title = {Plant-wide assessment of high-pressure membrane contactors in natural gas sweetening – Part II: Process analysis},
url = {http://dx.doi.org/10.1016/j.seppur.2020.117938},
volume = {258},
year = {2021}
}
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RIS format (EndNote, RefMan)

TY  - JOUR
AB  - This paper presents a model-based assessment of a natural gas sweetening process combining high-pressure membrane contactor with conventional amine regeneration. The analysis builds on a mathematical model of the membrane contactor developed in the companion paper, which is capable of quantitative predictions of the CO2 and hydrocarbon absorption in the amine solvent and the solvent evaporative losses to the treated gas. The predictive capability of the plant-wide model is tested against data from a pilot plant operated under industrially relevant conditions at a natural gas processing facility in Malaysia, showing a close agreement of the predictions with the CO2 outlet purity and the energy consumption at various CO2 loading in the amine solvent. This enables a model-based analysis of various operational decisions on the plant-wide solvent losses and hydrocarbon recovery from the rich amine. A new semi-lean process configuration that replaces the energy-intensive stripper column by a simple flash separator is shown to reduce the overall energy consumption significantly while still meeting sales gas specification. This new configuration forms the basis for the scale-up of a commercial natural gas sweetening process, which shows a high intensification potential in terms of volume footprint and energy duty compared to conventional amine treating plants.
AU  - Quek,VC
AU  - Shah,N
AU  - Chachuat,B
DO  - 10.1016/j.seppur.2020.117938
EP  - 11
PY  - 2021///
SN  - 1383-5866
SP  - 1
TI  - Plant-wide assessment of high-pressure membrane contactors in natural gas sweetening – Part II: Process analysis
T2  - Separation and Purification Technology
UR  - http://dx.doi.org/10.1016/j.seppur.2020.117938
UR  - https://www.sciencedirect.com/science/article/pii/S1383586620324114?via%3Dihub
UR  - http://hdl.handle.net/10044/1/84606
VL  - 258
ER  -
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