| Title |
Low-temperature carbon dioxide conversion via reverse water-gas shift thermochemical looping with supported iron oxide / |
| Authors |
Sun, Eddie ; Wan, Gang ; Haribal, Vasudev ; Gigantino, Marco ; Marin-Quiros, Sebastian ; Oh, Jinwon ; Vailionis, Arturas ; Tong, Andrew ; Randall, Richard ; Rojas, Jimmy ; Gupta, Raghubir ; Majumdar, Arun |
| DOI |
10.1016/j.xcrp.2023.101581 |
| Full Text |
|
| Is Part of |
Cell reports physical science.. Amsterdam : Elsevier. 2023, vol. 4, iss. 9, art. no. 101581, p. 1-16.. ISSN 2666-3864 |
| Keywords [eng] |
chemical looping ; CO2 utilization ; iron oxide ; low temperature ; reverse water-gas shift ; sustainable fuels and chemicals |
| Abstract [eng] |
Carbon dioxide utilization via the reverse water-gas shift (RWGS) reaction is a potentially scalable method to mitigate rising global carbon dioxide emissions if high carbon monoxide yields and reaction rates can be achieved at low reaction temperatures. Iron oxide (Fe2O3) has been extensively studied as a chemical looping material in RWGS, but nearly all studies were performed at high temperatures, where sintering and deactivation occur. Here, we investigate Fe2O3 as an RWGS chemical looping metal oxide at low reaction temperatures (500°C for both oxidation and reduction steps) and find that a direct, reversible, and stable metal/oxide phase transition results in a high carbon monoxide yield of 386 mL CO/g-Fe2O3/cycle. The measured carbon monoxide yield remains relatively stable for 350 redox cycles or 12.1 days on stream. The affordability and abundance of Fe2O3, the high carbon monoxide yield, and its extended time-on-stream without substantial performance degredation makes Fe2O3 a RWGS chemical looping metal oxide with a promising chance of commercialization. |
| Published |
Amsterdam : Elsevier |
| Type |
Journal article |
| Language |
English |
| Publication date |
2023 |
| CC license |
|
