State of the art and perspectives in catalytic processes for CO2 conversion into chemicals and fuels: The distinctive contribution of chemical catalysis and biotechnology

Aresta, Michele; Dibenedetto, Angela; Quaranta, Eugenio

doi:10.1016/j.jcat.2016.04.003

Cited by 290 publications

(120 citation statements)

References 465 publications

(511 reference statements)

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“…A pivotal point in human history is upon us where we can choose to change the course we are on and embark on a more sustainable one. One approach to a more sustainable future is to use CO 2 as the carbon source for fuels and carbon-based materials that are currently only derived from coal, oil and natural gas (Peters et al, 2011; Aresta et al, 2016; Landälv, 2017; Artz et al, 2018). Such an approach may have the dual effect of both removing CO 2 already in the atmosphere and recycling and reusing what is emitted during combustion, thereby forming a static CO 2 loop (Rahman et al, 2017).…”

Section: Introductionmentioning

confidence: 99%

Process Advantages of Direct CO2 to Methanol Synthesis

2018

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Developing a laboratory scale or pilot scale chemical process into industrial scale is not trivial. The direct conversion of CO2 to methanol, and concomitant production of hydrogen from water electrolysis on large scale, are no exception. However, when successful, there are certain benefits to this process over the conventional process for producing methanol, both economic and environmental. In this article, we highlight some aspects that are unique to the process of converting pure CO2 to methanol. Starting from pure CO2 and a separate pure source of H2, rather than a mixture of CO, CO2, and H2 as is the case with syngas, simplifies the chemistry, and therefore also changes the reaction and purification processes from conventional methanol producing industrial plants. At the core of the advantages is that the reaction impurities are essentially limited to only water and dissolved CO2 in the crude methanol. In this paper we focus on several aspects of the process that direct conversion of CO2 to methanol enjoys over existing methods from conventional syngas. In particular, we discuss processes for removing CO2 from a methanol synthesis intermediate product stream by way of a stripper unit in an overhead stream of a distillation column, as well as aspects of a split tower design for the distillation column with an integrated vapo-condenser and optionally also featuring mechanical vapor re-compression. Lastly, we highlight some differences in reactor design for the present system over those used in conventional plants.

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Section: Introductionmentioning

confidence: 99%

Process Advantages of Direct CO2 to Methanol Synthesis

2018

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“…[4][5][6][12][13][14][15][16][17][18][19][20] Ni and Ru-based materials have been commonly used for this reaction while, in terms of supports, SiO 2 , Al 2 O 3 , Ce and Zr oxides, mesoporous materials, carbons, hydrotalcite-derived materials and zeolites have been reported. [4][5][6][12][13][14][15][16][17][18][19][20] The development of suitable zeolite catalysts, through the preparation of well-defined samples, with controlled type of active sites (metals, metal oxides and acidity), could not only allow taking advantage from zeolite ability to stabilize different metal species, but also from zeolite confinement effects (zeolite cages, channels and channels intersections really act like nanoreactors, boosting catalysts activity). [21][22][23][24] Different zeolite structures could be used as supports and their basicity/acidity could be modified by cationic-exchange with alkaline metals and by post-synthesis treatments (e. g. dealumination).…”

Section: Introductionmentioning

confidence: 99%

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

et al. 2019

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This work provides a short review of the literature concerning the utilization of zeolites as supports for CO2 methanation catalysts. Indeed, the application of these materials in carbon dioxide hydrogenation into methane has led to considerably relevant performances according to the literature, being zeolite‐based catalysts more active and selective than commercial materials reported. Considering the well‐known zeolite features and the possibility to finely modulate its properties, inducing relevant changes on the adsorbed metal species and in the CO2 activation ability of the catalyst, potentially interesting catalytic properties can be generated also towards this transformation. Possible correlations between the characteristics of these materials, found as relevant for CO2 methanation, and the catalytic properties will be then presented and discussed.

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“…Various ways for converting CO 2 , one of the greenhouse-effect molecules, into useful valuable chemical substances, such as thermochemical catalytic reactions [1,2] and photocatalytic reactions, [3,4] have been studied to attain a CO 2 zero-emission society. The electrochemical CO 2 reduction (ECR) is an effective way to convert CO 2 to carbon monoxide (CO), [5][6][7][8] formic acid (HCOOH), [9][10][11] alcohol, [12][13][14] and various hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical CO₂ Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H₂ for Sn/Au(110)

et al. 2019

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We investigated electrochemical CO2 reduction (ECR) on 0.1 monolayer‐thick‐Co and Sn‐deposited Au(110) surfaces (Co/Au(110), and Sn/Au(110)). Scanning tunneling microscopic images showed quasi‐one‐dimensional Co and Sn islands with different aspect ratios growing along the trenches of the missing‐row direction of the (1×2) reconstructed Au(110) surface. The selectivity and partial current density of the CO and H2 evolutions correlated with those of the deposited metals. CO evolution selectivity of the former Co/Au(110) increased compared with that of the Au(110), while that of the Sn/Au(110) significantly decreased. Co/Au(110) showed 1.4‐fold higher CO evolution activity than that of the clean Au(110) at −1.35 V vs. reversible hydrogen electrode. In contrast, the H2 evolution of the latter surface was significantly enhanced at a potential lower than −0.1 V. The results showed that site separations of Au and alloying elements of Co and Sn at the topmost surface determine the ECR product selectivity of alloy electrodes.

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State of the art and perspectives in catalytic processes for CO2 conversion into chemicals and fuels: The distinctive contribution of chemical catalysis and biotechnology

Cited by 290 publications

References 465 publications

Process Advantages of Direct CO2 to Methanol Synthesis

Process Advantages of Direct CO2 to Methanol Synthesis

Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Electrochemical CO₂ Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H₂ for Sn/Au(110)

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State of the art and perspectives in catalytic processes for CO2 conversion into chemicals and fuels: The distinctive contribution of chemical catalysis and biotechnology

Cited by 290 publications

References 465 publications

Process Advantages of Direct CO2 to Methanol Synthesis

Process Advantages of Direct CO2 to Methanol Synthesis

Tuning Zeolite Properties towards CO2 Methanation: An Overview

Electrochemical CO2 Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H2 for Sn/Au(110)

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Tuning Zeolite Properties towards CO₂ Methanation: An Overview

Electrochemical CO₂ Reduction on Bimetallic Surface Alloys: Enhanced Selectivity to CO for Co/Au(110) and to H₂ for Sn/Au(110)