High Selectivity of Medium Distillates in Fischer–Tropsch Synthesis Using Dual Bed

Westphalen, Gisele; Cortez, Karine Alves; Baldanza, Maria A. S.; Almeida, António; Salim, Vera Maria Martins; Silva, Mônica Antunes Pereira da; Silva, Victor Teixeira da

doi:10.1007/s10562-021-03834-y

Cited by 2 publications

(3 citation statements)

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“…Designing tailored catalysts to enhance selectivity toward distillates in the C 8 −C 16 range is essential for tackling this challenge. 89,90 The energy intensity of the CO 2 reduction in the RWGS process and its low technical maturity as well as the low selectivity of the FT process and downstream hydrogen separation pose significant challenges in the RWGS-FT route. The detailed investigation of the impact of the endothermic high-temperature RWGS process will be discussed in Section.…”

Section: Energy Intensitymentioning

confidence: 99%

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From CO₂ to Sustainable Aviation Fuel: Navigating the Technology Landscape

Hirunsit,

Senocrate,

Gómez-Camacho

et al. 2024

ACS Sustainable Chem. Eng.

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Sustainable jet fuel plays a crucial role in reducing aviation's carbon footprint, offering a promising approach toward net-zero emissions in the aviation sector. This work investigates pathways for producing jet fuels directly from CO 2 . Given the early stage of many direct CO 2 utilization technologies, identifying promising pathways is essential. Our investigation focuses on the three most important routes for jet fuel production, each of which employs a distinct intermediate compound. These routes are the reverse water−gas shift and Fischer−Tropsch (RWGS-FT) route, the methanol route, and the CO 2 electrolysis route, which employ syngas, methanol, and ethylene as key intermediates, respectively. By performing comprehensive process simulations and analyzing the resulting energy intensity and thermal and CO 2 efficiency of each route, these findings provide quantitative early-stage evaluations and allow us to identify key technical development requirements. Our results indicate that the methanol route exhibits the lowest energy intensity, followed by the RWGS-FT and CO 2 electrolysis routes. H 2 production accounts for a significant share of the energy demand for the RWGS-FT and methanol routes. The RWGS-FT route shows the lowest CO 2 efficiency, while the methanol route achieves 92% CO 2 efficiency including recycle streams, highlighting its potential for jet fuel production. Furthermore, the CO 2 electrolysis route holds the potential to achieve close to 100% CO 2 efficiency and requires significantly less H 2 feedstock. However, it faces challenges of a high energy demand. In addition, our study investigates key effects of potential technology optimization, providing a guideline for research and technology optimization.

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Section: Energy Intensitymentioning

confidence: 99%

“…Given that the FT synthesis produces a wide range of hydrocarbons, optimizing this route for C 8 –C 16 production remains a critical challenge. Designing tailored catalysts to enhance selectivity toward distillates in the C 8 –C 16 range is essential for tackling this challenge. , …”

Section: Energy Intensitymentioning

confidence: 99%

From CO₂ to Sustainable Aviation Fuel: Navigating the Technology Landscape

Hirunsit,

Senocrate,

Gómez-Camacho

et al. 2024

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

show abstract

“…20 In the literature, β-SiC has been reported as a support for Co catalysts due to: (i) its good thermal conductivity; 3 (ii) its resistance to oxidation in the presence of excess of water; 21 (iii) the effect of its chemical inertness on the catalytic performance. 22 Westphalen et al 23 synthesized a high surface area β-SiC support using magnesiothermic reduction. Cobalt supported on the synthesized β-SiC was more stable and favoured the formation of C 5+ products as compared to cobalt supported on commercial β-SiC.…”

Section: Introductionmentioning

confidence: 99%