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- In relation to this article, we declare that there is no conflict of interest.
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This is an Open-Access article distributed under the terms of the Creative Commons Attribution Non-Commercial License (http://creativecommons.org/licenses/bync/3.0) which permits
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Guidelines for the Design of Solid CO 2 Adsorbents for Mobile Carbon Capture in Heavy-Duty Vehicles: A Review
Abstract
The transportation sector is the largest contributor to carbon dioxide (CO 2 ) emissions, largely due to heavy-duty vehicles
(HDVs) that inevitably rely on internal combustion engines. Electrifi cation is a promising technology for decarbonizing
light-duty vehicles but it is diffi cult to apply to HDVs with long driving ranges and signifi cant weights. One possible solution
is a mobile carbon capture (MCC) system that adapts onboard CO 2 capture and storage to the HDV. Although conceptual
designs have been presented for MCC systems that use adsorbents and temperature-swing adsorption (TSA), the development
of the adsorbent-based MCC remains in its infancy. Since adsorbents play a critical role in determining the overall weight,
volume, and energy consumption of the MCC, the development of a high performance adsorbent is a key factor in the successful
MCC design. In this review, we aim to provide guidelines for the design of CO 2 adsorbents for MCC in HDVs. First,
we briefl y introduce the adsorbent selection criteria for TSA in MCC, including the CO 2 working capacity, purity, stability,
and regeneration energy. Then, we summarize recent progress in the development of adsorbents tested under MCC-relevant
conditions. Finally, the current challenges and future prospects of MCC are discussed.
