CO2 hydrogenation to lower olefins on a high surface area K-promoted bulk Fe-catalyst

Visconti, Carlo Giorgio; Martinelli, Michela; Falbo, Leonardo; Infantes‐Molina, Antonia; Lietti, Luca; Forzatti, Pio; Iaquaniello, Gaetano; Palo, Emma; Picutti, Barbara; Brignoli, Fabio

doi:10.1016/j.apcatb.2016.07.047

Cited by 264 publications

(177 citation statements)

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“…showed that reaction temperatures of around 400 8Cw ere suitablef or synthesizingl ight olefins. [50,51,56,87,93,95] Optimal temperatures differ between studies, but ah igherO /P ratio was obtained upon increasingt he temperature from 200 to 300 8C. [87] Moreover,C O 2 conversion decreases at temperatures ranging from 100 to 450 8C.…”

Section: Effectsofo Peratingc Onditionsmentioning

confidence: 97%

“…[50,51] Alkali-metal cocatalysts Adding alkali metals (K + ,N a + ,R b + ,C s + ,a nd Li + )t oi ronbased catalysts improves both CO 2 conversion and olefin production, mainly because of their electronic and basic properties. However,f ewer studies focused on improving the performance of pristine iron catalysts.…”

Section: Iron-basedcatalystsmentioning

confidence: 99%

“…[50,51,56,87,93,95] Optimal temperatures differ between studies, but ah igherO /P ratio was obtained upon increasingt he temperature from 200 to 300 8C. [50] Scheme7.Proposed reaction mechanism for the conversion of CO 2 to methanol over the ZnÀGaÀOcatalyst. [56] Thermodynamic studies at 400 8Ca nd a3 :1 H 2 /CO 2 ratio showedt hat CO 2 conversion increaseds harply if the pressure increased between0and2MPa.…”

Section: Effectsofo Peratingc Onditionsmentioning

confidence: 99%

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A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

2019

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ReviewsScheme2.Redox (left) and associative (right) reaction pathways for the RWGS reaction. [82] Scheme3.Reduction and carburization steps of an iron-based catalyst. [83] Scheme4.Catalytic activity (top) and iron-phase composition of the catalyst (bottom) as af unction of time during the reaction. Reactionconditions:H 2 / CO 2 = 3, 250 8C, 1MPa, FeÀAlÀCuÀ9K catalyst. FT refers to the Fischer-Tropschr eaction. Arrows indicatethe increase or decrease of reaction yield/iron phase during ac ertain episode. [84] ChemSusChem

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Section: Effectsofo Peratingc Onditionsmentioning

confidence: 97%

Section: Iron-basedcatalystsmentioning

confidence: 99%

Section: Effectsofo Peratingc Onditionsmentioning

confidence: 99%

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A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

2019

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“…Most recent and current research investigations [42][43][44][45][46][47][48][49] on reaction mechanism for Fe-based catalysts have been conducted for hydrocarbon, olefin and methane synthesis from CO 2 hydrogenation process.…”

Section: Reaction Mechanismmentioning

confidence: 99%

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

Tursunov

Кustov

Kustov

2017

Oil & Gas Science and Technology - Rev. IFP Energies nouvel

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-Climate change and global warming have become a challenging issue affecting not only humanity but also flora and fauna due to an intense increase of CO 2 emission in the atmosphere which has gradually led to amplification in the average global temperature. Hence, a number of mechanisms have been promoted to diminish the atmospheric commutation of carbon dioxide. One of the well-known techniques is Carbon Capture and Storage (CCS) which mechanism is based on capture and storage vast quantities of CO 2 , as well as Carbon Capture and Utilization (CCU) which mechanism is based on CO 2 conversion to liquid fuels (e.g. methanol, hydrocarbons, carbonate, propylene, dimethyl ether, ethylene, etc.). Particularly, methanol (CH 3 OH) is a key feedstock for industrial chemicals, which further can be converted into high molecular alternative liquid fuels. In this regard, hydrogenation of CO 2 is one of the promising, effectual and economic techniques for utilization of CO 2 emission. Nevertheless, the reduction/activation of CO 2 into useful liquid products is a scientifically challenging issue due to the complexities associated with its high stability. Thus, various catalysts have been applied to reduce the activation energy of the hydrogenation process and transform CO 2 into value-added products. Thereby, this review article highlights the progress and the recent advances of research investigation in Cu and Fe-based catalytic conversion of CO 2 , reaction mechanisms, catalytic reactivity, and influence of operating parameters on product efficiency.

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“…The CO 2 /H 2ren .r oute via methanol, in contrast to direct olefin synthesis by the Fischer-Tropsch to olefin (FTO) process, [45] has the potentiala dvantages that the MTO step is already implementedo nalarge scale and that it allows ab etter tuning of the selectivity to olefins. In the Dechema technology study "Low carbon energy and feedstock for the European chemical industry" commissioned by the European Chemical Industry Council (CEFIC), [46] Bazzanella and Ausfelder remarked that "taking the CO 2 feedstock demand and footprint for the hydrogen-based methanolp roduction into account,t he total carbon footprint of thep rocess chain from water and captured CO 2 to methanol and further to olefins amountst oÀ1.89 t, which is the avoided CO 2 per ton of ethylene or propylene produced via this pathway."…”

Section: Essaysmentioning

confidence: 99%

Beyond Solar Fuels: Renewable Energy‐Driven Chemistry

et al. 2017

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The ongoing energy transition based on the substitution of fossil feedstocksa se nergy sourcesw ith renewablee nergy (RE) sourcesdemands reconsideration of current industrial chemical production,w hich is anticipated to be at the end of this cycle. The main element determining greenhouse gas (GHG) emissions during chemical production is the use of fossil fuels to drive chemical transformations, rather than their use as sources of carbon.F urthermore, RE will become progressively cheaper as as ource of energy with respectt ot hat derived fromf ossil fuels and new chemical raw materials such as methanol, derived from the conversion of waste CO 2 ,w illb ecome available on al arge scale, being used as energy vectors to transport RE on ag lobals cale. There are thus converging sustainability elements indicating the need to move to af uture scenario of chemicali ndustrialp roduction denoted as "RE-driven chemistry", which can also provide ag reat opportunity for innovation and competitivity in chemical industry.I nt his Essay we discuss how it is realistic to conceive of RE-driven chemistry,w hich will be an on-incremental change to move to al ow-carbon economy,t hat is, with ad ecreasei nG HG emissions by up to 80 %. However,t his objective requires the fulfillment of two criteria: i) the use of RE-driven processes for the production of base raw materials, such as olefins,m ethanol, and ammonia,w hich are at the top of the chemical production value chain and ii)the development of RE-driven routes that simultaneously realize process and energy intensification, that is, which combine the use of RE in substitution of fossil fuels to significantly reducethe number of the process steps. Twospecific examples of using RE to realize novel conversion pathways are discussed: the direct synthesies of ammonia from N 2 andH 2 Oa nd that of acetic acid from CO 2 and H 2 O. They exemplify the above concept and the possibility of ar eductiono fo ver 80 % in GHG emissions. Some aspects of the production of olefins from renewable methanola re also discussed. Enabling this vision of an ew chemical industrial production based on the use of RE requires significant investment in new production technologies, because an on-incremental change in chemical industry-thedevelopment of newm aterials, reactors and processes( for example, based on the use of electrons and photons rather than heat as today)-is an ecessity.T hese novel technologiesw ill offer the opportunity to overcome the actual industrial process, by switching from largei ntegrated chemical plantst oad istributed modelo fp roduction with various sustainability benefits.

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CO2 hydrogenation to lower olefins on a high surface area K-promoted bulk Fe-catalyst

Cited by 264 publications

References 61 publications

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

A Critical Look at Direct Catalytic Hydrogenation of Carbon Dioxide to Olefins

A Brief Review of Carbon Dioxide Hydrogenation to Methanol Over Copper and Iron Based Catalysts

Beyond Solar Fuels: Renewable Energy‐Driven Chemistry

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