Title: Post-combustion CO₂ capture in a CI engine using adsorbent - a numerical and experimental study

Authors: Sushil Kumar Rathore; Bamunusinghe Arachchige Umesh Maduwantha; Ravi Maniarasu; Sivalingam Murugan

Addresses: Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India; Department of Mechanical Engineering, Thiagarajar College of Engineering, Madurai 625015 Tamil Nadu, India ' Department of Mechanical Engineering, National Institute of Technology, Rourkela, Odisha, 769008, India

Abstract: This research explores the feasibility of using a biomass-based adsorbent to reduce carbon dioxide (CO₂) emissions from a compression ignition (CI) engine. A numerical study of counter-pressure is performed in a capture unit using permeability factors of an adsorbent. The adsorbent is kept in two positions to examine its gas adsorption performance. Numerical results ensure acceptable back pressure and superior capture efficiency. The capture unit is designed under the permissible counter-pressure limit and coupled to the exhaust of a CI engine. The adsorbent exhibited simultaneous CO, CO₂, HC, and NO reduction by 6.5%, 18%, 9.8%, and 12%, respectively.

Keywords: adsorbent; adsorption; carbon dioxide; diesel engine; greenhouse gas emissions; post-combustion capture unit.

DOI: 10.1504/IJGW.2024.139262

International Journal of Global Warming, 2024 Vol.33 No.3, pp.264 - 283

Received: 27 Jul 2023
Accepted: 20 Dec 2023
Published online: 28 Jun 2024 *

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