Fischer–Tropsch synthesis to olefins boosted by MFI zeolite nanosheets

Wang, Chengtao; Fang, Wei; Liu, Zhiqiang; Wang, Liang; Liao, Zuwei; Yang, Yongrong; Li, Hangjie; Liu, Lu; Zhou, Hang; Qin, Xuedi; Xu, Shaodan; Chu, Xuefeng; Wang, Qianqian; Zheng, Anmin; Xiao, Feng‐Shou

doi:10.1038/s41565-022-01154-9

Cited by 66 publications

(44 citation statements)

References 51 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One route is based on bifunctional catalysis using oxide–zeolite composite catalyst (OX-ZEO), where the activation of CO and the C–C bond formation are performed on separated active sites. ,,, Therefore, the product selectivity can be facilely controlled, and the selectivity to lower olefins in hydrocarbons reaches up to ∼80%, surpassing the maximum value predicated by the ASF model. Fischer–Tropsch to olefins (FTO) is another promising direct route for olefin production from syngas. ,,,,, Although the selectivity to lower olefins is limited by the ASF model, the FTO process is highly efficient for long-chain olefin production, and a higher CO conversion as well as olefin yield can be readily obtained. The typical FTO catalysts include Fe-based and Co-based systems …”

Section: Fischer–tropsch To Olefinsmentioning

confidence: 99%

“…Fischer−Tropsch to olefins (FTO) is another promising direct route for olefin production from syngas. 16,23,24,83,88,89 Although the selectivity to lower olefins is limited by the ASF model, the FTO process is highly efficient for long-chain olefin production, and a higher CO conversion as well as olefin yield can be readily obtained. The typical FTO catalysts include Fe-based and Co-based systems.…”

Section: Fischer−tropsch To Olefinsmentioning

confidence: 99%

See 1 more Smart Citation

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Lin

et al. 2022

ACS Catal.

View full text Add to dashboard Cite

Fischer–Tropsch synthesis (FTS) is a versatile technology to produce high-quality fuels and key building-block chemicals from syngas derived from nonpetroleum carbon resources such as coal, natural gas, shale gas, biomass, solid waste, and even CO2. However, the product selectivity of FTS is always limited by the Anderson–Schulz–Flory (ASF) distribution, and the key scientific problems including selectivity control, energy saving, and CO2 emission reduction still challenge the current FTS technology. Herein, we review recent significant progress in the field of FTS to obtain specific target products including fuels, olefins, aromatics, and higher alcohols with high selectivity. These achievements are enabled by developing highly efficient catalysts and a controlled reaction pathway based on an integrated process. The structural nature of catalytic active sites and established structure–performance relationships are clarified. Moreover, we specially focus on the carbon utilization efficiency, and the efforts to tune the preferential formation of value-added chemicals and strategies to reduce CO2 selectivity are summarized. The challenges and the perspectives for future FTS technology development with high carbon efficiency are also discussed.

show abstract

Section: Fischer–tropsch To Olefinsmentioning

confidence: 99%

Section: Fischer−tropsch To Olefinsmentioning

confidence: 99%

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Lin

et al. 2022

ACS Catal.

View full text Add to dashboard Cite

show abstract

“…The possibility of gas-phase polymerization can be limited upon a combination of zeolites, and the reaction feed from the metallic phase could be tuned to synthesize petrochemicals (e.g., aromatics). Strategically, the following two research strategies were employed for the hydrogenation of CO/CO 2 : (i) Fischer–Tropsch synthesis (FTS) on the metallic catalyst followed by oligomerization/cracking/aromatization reactions on the zeolitic component ,,,− (N.B. : CO 2 -derived FTS is associated with the reverse water-gas shift reaction (RWGS: CO 2 + H 2 ⇌ CO + H 2 O)) and (ii) methanol synthesis over a metallic catalyst (CO + 2H 2 → CH 3 OH; CO 2 + 3H 2 → CH 3 OH + H 2 O) in combination with the zeolite-mediated classical MTH process (Figure ).…”

Section: Roadmap Of This Perspectivementioning

confidence: 99%

Evaluating the Role of Descriptor- and Spectator-Type Reaction Intermediates During the Early Phases of Zeolite Catalysis

Gong

Chowdhury

2022

ACS Catal.

View full text Add to dashboard Cite

The philosophy of "Ikigai"�a reason for being�could be extended to rationalize the role of organic reaction intermediates in zeolite catalysis. Each reaction intermediate's ikigai is specific under the confined microenvironment of the zeolite: either controlling the product selectivity (i.e., "descriptor"-type reaction intermediates) or promoting the catalyst deactivation (i.e., "spectator"-type reaction intermediates). Based on the process conditions and zeolite topologies, the ikigai of reaction intermediates could be altered, where the "descriptor" character could turn into a "spectator" depending on the working environment. Although the spectroscopy-/mechanism-driven development of catalytic technologies has been accelerated in the past decade and can now identify "elusive" zeolite-trapped reaction intermediates, it still does not always necessarily imply their "positive" impact during catalysis. Therefore, future research activities should be dedicated to recognizing the true ikigai of identified reaction intermediates: i.e., differentiating their spectator role from the catalytically relevant descriptor. Considering its potential industrial application, we will present our account and philosophy on the current status and future impact of mechanism-driven development of zeolite-mediated catalytic technologies in this Perspective.

show abstract

“…Similar variation trends were observed in the in situ FT-IR spectrum of O-AlB 2 (Figure S12). Furthermore, additional peaks at 1300− 1000 cm −1 of the stretching vibration of �CH 2 of olefins 28 appeared at 350 °C. There were weakening peaks of C 3 H 8 but no new peaks of �CH 2 in the in situ FT-IR spectra of O-AlB 2 (Figure S12), which was consistent with the previously described results (Figure 2a).…”

Section: ■ Introductionmentioning

confidence: 99%

B–O Oligomers or Ring Species in AlB₂: Which is More Selective for Propane Oxidative Dehydrogenation?

et al. 2023

View full text Add to dashboard Cite

B-based catalysts are widely studied in the oxidative dehydrogenation of propane (ODHP) owing to their high selectivity. Correspondingly, two species, B−O oligomers and rings, have been recognized as active centers in B-based catalysts. To answer the essential question of whether B−O oligomers or ring species are more selective for ODHP, two AlB 2 catalysts enriched with B−O rings (R-AlB 2 ) and abundant B(OH) x O 3−x oligomers (O-AlB 2 ) were designed and compared herein. When tested in ODHP, R-AlB 2 exhibits an olefin yield of 30.2% at 500 °C, which is 2.3 times that of O-AlB 2 . Additionally, R-AlB 2 was stable for up to 200 h without deterioration. Multiple characterizations, including in situ Fourier transform infrared spectroscopy and theoretical calculations, demonstrate that B−O rings are more advantageous for producing propylene (C 3 = ) via a dehydration pathway with lower energy barriers and ethylene (C 2 = ) via two other reaction pathways (direct cracking of propane and oxidative coupling of methyl) B(OH) x O 3−x is primarily responsible for producing few C 3 = .

show abstract

Fischer–Tropsch synthesis to olefins boosted by MFI zeolite nanosheets

Cited by 66 publications

References 51 publications

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Evaluating the Role of Descriptor- and Spectator-Type Reaction Intermediates During the Early Phases of Zeolite Catalysis

B–O Oligomers or Ring Species in AlB₂: Which is More Selective for Propane Oxidative Dehydrogenation?

Contact Info

Product

Resources

About

Fischer–Tropsch synthesis to olefins boosted by MFI zeolite nanosheets

Cited by 66 publications

References 51 publications

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Advances in Selectivity Control for Fischer–Tropsch Synthesis to Fuels and Chemicals with High Carbon Efficiency

Evaluating the Role of Descriptor- and Spectator-Type Reaction Intermediates During the Early Phases of Zeolite Catalysis

B–O Oligomers or Ring Species in AlB2: Which is More Selective for Propane Oxidative Dehydrogenation?

Contact Info

Product

Resources

About

B–O Oligomers or Ring Species in AlB₂: Which is More Selective for Propane Oxidative Dehydrogenation?