Hydrogenation of CO2 to light olefins on ZZ/MnSAPO-34@Si-2: Effect of silicalite-2 seeds on the acidity and catalytic activity

Lu, Peng; Riswan, Madame; Chang, Xiaoning; Zhu, Kaiwen; Hondo, Emmerson; Nyako, Abdul; Xing, Chuang; Du, Ce; Chen, Shuyao

doi:10.1016/j.fuel.2022.125470

Cited by 5 publications

(5 citation statements)

References 39 publications

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“…Specifically, a high selectivity of C 5+ hydrocarbons (91.9 %) was achieved via RWGS‐FTS route over a Fe−Zn‐Zr@HZSM‐5 catalyst, where the optimum zeolite BAS density and shell thickness was achieved by utilizing this strategy, exhibiting its potential to steer product selectivity [138] . Furthermore, the core‐shell concept has recently garnered attention for CO 2 hydrogenation as multiple studies observed an increased olefin selectivity, compared to the physical mixing of the same catalyst components [102,112–113] . However, several unanswered questions persist, such as, what is the interaction between the active sites, and whether there can be any effect of ion migration in such arrangements.…”

Section: Discussionmentioning

confidence: 99%

“…[138] Furthermore, the core-shell concept has recently garnered attention for CO 2 hydrogenation as multiple studies observed an increased olefin selectivity, compared to the physical mixing of the same catalyst components. [102,[112][113] However, several unanswered questions persist, such as, what is the interaction between the active sites, and whether there can be any effect of ion migration in such arrangements. A thorough exploration of these factors can pave the way for the development of an optimal catalyst for the efficient and selective hydrogenation of CO 2 .…”

Section: Core-shell Catalystmentioning

confidence: 99%

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Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

Mahnaz¹,

Dunlap²,

Helmer³

et al. 2023

ChemCatChem

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The thermocatalytic conversion of carbon dioxide (CO2) into valuable hydrocarbons presents a promising solution for mitigating anthropogenic CO2 emissions while producing drop‐in replacements for fossil‐derived products. Among the two tandem mechanisms for the direct hydrogenation of CO2, the methanol synthesis coupled with the methanol to hydrocarbon (MTH) reaction offers an improvement over the reverse water‐gas shift coupled with Fischer‐Tropsch synthesis reaction (RWGS‐FTS), as it is not limited Anderson‐Schulz‐Flory distribution and yields higher selectivity towards specific products (e.g., olefins, aromatics, higher hydrocarbons). Herein, we focus on the recent progress achieved through this pathway and outline the existing knowledge gaps. We discuss the challenges involved in the process and highlight the key descriptors in the selection of catalyst components. Finally, we present several potential solutions to circumvent the current challenges, aiming to expedite the advancement of this route toward an efficient CO2 hydrogenation process.

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Section: Discussionmentioning

confidence: 99%

Section: Core-shell Catalystmentioning

confidence: 99%

Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

Mahnaz¹,

Dunlap²,

Helmer³

et al. 2023

ChemCatChem

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“…Therefore, from the conventional Fischer-Tropsch reaction, it is possible to access catalytic systems that could be tested in modified Fischer-Tropsch processes capable of using CO 2 as a raw material to access light olefins (C2-C4) widely used in different fields such as the synthesis of polymers and pharmaceutical intermediates. However, the chain length distributions are given by the Anderson-Flory (ASF) distribution, which limit the C2-C4 range to less than 58% [427]. Finally, it is possible to integrate waste CO 2 in synthesis using Fe-based Fischer-Tropsch with green H 2 as well as olefin oligomerization, thereby increasing the production of value-added liquid hydrocarbons [428].…”

Section: Modified Fischer-tropsch Synthesis Routementioning

confidence: 99%

A Review on Green Hydrogen Valorization by Heterogeneous Catalytic Hydrogenation of Captured CO2 into Value-Added Products

et al. 2022

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The catalytic hydrogenation of captured CO2 by different industrial processes allows obtaining liquid biofuels and some chemical products that not only present the interest of being obtained from a very low-cost raw material (CO2) that indeed constitutes an environmental pollution problem but also constitute an energy vector, which can facilitate the storage and transport of very diverse renewable energies. Thus, the combined use of green H2 and captured CO2 to obtain chemical products and biofuels has become attractive for different processes such as power-to-liquids (P2L) and power-to-gas (P2G), which use any renewable power to convert carbon dioxide and water into value-added, synthetic renewable E-fuels and renewable platform molecules, also contributing in an important way to CO2 mitigation. In this regard, there has been an extraordinary increase in the study of supported metal catalysts capable of converting CO2 into synthetic natural gas, according to the Sabatier reaction, or in dimethyl ether, as in power-to-gas processes, as well as in liquid hydrocarbons by the Fischer-Tropsch process, and especially in producing methanol by P2L processes. As a result, the current review aims to provide an overall picture of the most recent research, focusing on the last five years, when research in this field has increased dramatically.

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“…[17] The thermal catalysis of CO 2 can be divided into CO 2 -COhydrocarbons and CO 2 -methanol-hydrocarbons according to different reaction principles. [18,19] Methanol as an intermediate product is more selective for the product, but the CO 2 utilization is generally lower. [20] CO 2 -CO-hydrocarbons is also a modified Fischer-Tropsch process, typically having higher CO 2 utilization and easier access to long-chain hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

“…The thermal catalysis of CO 2 can be divided into CO 2 ‐CO‐hydrocarbons and CO 2 ‐methanol‐hydrocarbons according to different reaction principles [18,19] . Methanol as an intermediate product is more selective for the product, but the CO 2 utilization is generally lower [20] .…”

Section: Introductionmentioning

confidence: 99%

The Effect Of Ca Doping On The CO2 Hydrogenation Performance Of CaxZn10‐xFe20 Catalysts (x=0, 0.5, 1 and1.5)

Cai

Zhang

Cao

et al. 2023

Chemistry An Asian Journal

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In this paper, CaxZn10-xFe20 catalysts were prepared by the co-precipitation method and applied to CO 2 hydrogenation. The experimental results show that the CO 2 conversion of the catalyst Ca1Zn9Fe20 at a Ca doping amount of 1 mmol can reach 57.91 %, which is 13.5 % more than the CO 2 conversion of the catalyst Zn10Fe20. Moreover, the catalyst Ca1Zn9Fe20 has the lowest selectivity for both CO and CH 4, with 7.40 % and 6.99 %, respectively. The catalysts were characterized by XRD, N 2 adsorption-desorption, CO 2 -TPD, H 2 -TPR, and XPS. The results demonstrate that the doping of Ca increases the basic sites on the catalyst surface and thus allows the catalyst to adsorb more CO 2 to promote the reaction. Besides, the Ca doping amount of 1 mmol can suppress the formation of graphitic carbon on the catalyst surface and prevent the excess graphitic carbon from covering the active site Fe 5 C 2 .

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Hydrogenation of CO2 to light olefins on ZZ/MnSAPO-34@Si-2: Effect of silicalite-2 seeds on the acidity and catalytic activity

Cited by 5 publications

References 39 publications

Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

A Review on Green Hydrogen Valorization by Heterogeneous Catalytic Hydrogenation of Captured CO2 into Value-Added Products

The Effect Of Ca Doping On The CO2 Hydrogenation Performance Of CaxZn10‐xFe20 Catalysts (x=0, 0.5, 1 and1.5)

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Hydrogenation of CO2 to light olefins on ZZ/MnSAPO-34@Si-2: Effect of silicalite-2 seeds on the acidity and catalytic activity

Cited by 5 publications

References 39 publications

Selective Valorization of CO2 towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

Selective Valorization of CO2 towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

A Review on Green Hydrogen Valorization by Heterogeneous Catalytic Hydrogenation of Captured CO2 into Value-Added Products

The Effect Of Ca Doping On The CO2 Hydrogenation Performance Of CaxZn10‐xFe20 Catalysts (x=0, 0.5, 1 and1.5)

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Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis

Selective Valorization of CO₂ towards Valuable Hydrocarbons through Methanol‐mediated Tandem Catalysis