Direct CO2 hydrogenation to light olefins by suppressing CO by-product formation

Tan, Li; Zhang, Peipei; Cui, Yu; Suzuki, Yuichi; Li, Hangjie; Guo, Lisheng; Yang, Guohui

doi:10.1016/j.fuproc.2019.106174

Cited by 79 publications

(32 citation statements)

References 49 publications

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“…However, we need to point out that a slight deactivation is also observed at 350°C for the ZSM-5 based catalysts. Finally, CO addition seems to slightly enhance the C 3 selectivity, in line with the recent results by Tan et al 89 who observed an increase in the hydrocarbon selectivity by CO co-feeding. Altogether, we can consider the ZrZn-30/ZSM-5 combined system, tested at 350°C and 30 bar, as the most promising candidate/ reaction conditions, displaying the highest conversion and stability with a C 3 selectivity close to 35% among hydrocarbons.…”

Section: Catalysis Science and Technology Papersupporting

confidence: 89%

CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

Ticali

Salusso

Ahmad

et al. 2021

Catal. Sci. Technol.

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Section: Catalysis Science and Technology Papersupporting

confidence: 89%

CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

Ticali

Salusso

Ahmad

et al. 2021

Catal. Sci. Technol.

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“…The high selectivity of the In 2 O 3 /ZrO 2 &SAPO hybrid catalyst towards olefin formation (~77.6%) (Figure 12) demonstrated that the breaking of the Anderson-Schulz-Flory distribution is possible by proper catalyst design. Unfortunately, the yield of olefins is still low (about 8%) [98].…”

Section: Tandem Catalytic Systemsmentioning

confidence: 99%

“…The high selectivity of the In2O3/ZrO2&SAPO hybrid catalyst towards olefin formation (⁓77.6%) (Figure 12) demonstrated that the breaking of the Anderson-Schulz-Flory distribution is possible by proper catalyst design. Unfortunately, the yield of olefins is still low (about 8%) [98]. Despite intensive work on tandem bifunctional catalysts, poisoning of the catalyst by the produced CO (by-product) remains an unsolved problem [96].…”

Section: Tandem Catalytic Systemsmentioning

confidence: 99%

“…Higher CO 2 conversions lead to lowering of olefins selectivity due to side reactions [39]. The catalysts are bifunctional with the metal function necessary for the hydrogenation of CO 2 to methanol and the acid function, provided by HZSM-5 or SAPO-34 zeolites, which is required for the transformation of methanol to light olefins [39,[96][97][98][99][100][101][102].…”

Section: Tandem Catalytic Systemsmentioning

confidence: 99%

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Catalysts for the Conversion of CO2 to Low Molecular Weight Olefins—A Review

et al. 2021

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There is a large worldwide demand for light olefins (C2=–C4=), which are needed for the production of high value-added chemicals and plastics. Light olefins can be produced by petroleum processing, direct/indirect conversion of synthesis gas (CO + H2) and hydrogenation of CO2. Among these methods, catalytic hydrogenation of CO2 is the most recently studied because it could contribute to alleviating CO2 emissions into the atmosphere. However, due to thermodynamic reasons, the design of catalysts for the selective production of light olefins from CO2 presents different challenges. In this regard, the recent progress in the synthesis of nanomaterials with well-controlled morphologies and active phase dispersion has opened new perspectives for the production of light olefins. In this review, recent advances in catalyst design are presented, with emphasis on catalysts operating through the modified Fischer–Tropsch pathway. The advantages and disadvantages of olefin production from CO2 via CO or methanol-mediated reaction routes were analyzed, as well as the prospects for the design of a single catalyst for direct olefin production. Conclusions were drawn on the prospect of a new catalyst design for the production of light olefins from CO2.

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“…[12] For example, zeolite and bifunctional capsule catalysts were designed to offer spatially confined model in the direct synthesis of target product from syngas or CO 2 hydrogenation. [13,14] H 2 O is a key byproduct of the FTS process and is obtained from the oxygen atoms contained in CO. The partial pressure of H 2 O has a significant influence on the WGS reaction, and as such also affects the product distribution of FTS.…”

Section: Introductionmentioning

confidence: 99%

A Hydrophilic Supported Fe₃O₄ Catalyst with Enhanced Light Olefins Selectivity in the Fischer‐Tropsch Synthesis

Zhang

Gao

et al. 2021

ChemistrySelect

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A series of Fe 3 O 4 catalysts supported on chitosan (CTS) were prepared through successive hydrothermal synthesis, crosslinking, and mechanical mixing of CTS. The prepared catalysts were characterized by SEM, XRD, N 2 adsorption-desorption, XPS, FTÀ IR, TG, H 2 À TPR, COÀ TPD, C 3 H 6 À TPD, and contact angle (CA) analysis, then evaluated for their performance in the Fischer-Tropsch synthesis (FTS). CTS supported Fe 3 O 4 catalyst increased the hydrophilicity of the pristine un-supported Fe 3 O 4 . Results revealed that the catalysts exhibit high activity with tuned product distribution in FTS. The water gas shift reaction is facilitated over the Fe 3 O 4 /CTS catalysts, and their selectivity for light olefins is significantly improved by inhibiting the secondary reaction of the initial olefins, which was confirmed by C 3 H 6 À TPD experiments. The Fe 3 O 4 particle size has a significant influence on product distribution, with larger Fe 3 O 4 particles being beneficial to the formation of light olefins. The 30 % Fe 3 O 4 /CTS catalyst has light olefin selectivity of 35 % with an O/P value of 2.19, which are higher than those of 21 % and 0.62 over the pristine Fe 3 O 4 .

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Direct CO2 hydrogenation to light olefins by suppressing CO by-product formation

Cited by 79 publications

References 49 publications

CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

Catalysts for the Conversion of CO2 to Low Molecular Weight Olefins—A Review

A Hydrophilic Supported Fe₃O₄ Catalyst with Enhanced Light Olefins Selectivity in the Fischer‐Tropsch Synthesis

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Direct CO2 hydrogenation to light olefins by suppressing CO by-product formation

Cited by 79 publications

References 49 publications

CO2hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO2/zeolite catalysts

CO2hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO2/zeolite catalysts

Catalysts for the Conversion of CO2 to Low Molecular Weight Olefins—A Review

A Hydrophilic Supported Fe3O4 Catalyst with Enhanced Light Olefins Selectivity in the Fischer‐Tropsch Synthesis

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CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

CO₂hydrogenation to methanol and hydrocarbons over bifunctional Zn-doped ZrO₂/zeolite catalysts

A Hydrophilic Supported Fe₃O₄ Catalyst with Enhanced Light Olefins Selectivity in the Fischer‐Tropsch Synthesis