Innovative 3D-manufacture of structured copper supports post-coated with catalytic material for CO 2 methanation

Danaci, Simge; Protasova, LN Lidia; Snijkers, Frans; Bouwen, Wim; Bengaouer, Alain; Marty, Pascal

doi:10.1016/j.cep.2018.03.023

Cited by 45 publications

(36 citation statements)

References 26 publications

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“…More recently, the same research team applied the 3DFD technique for obtaining the structured reactors using copper as raw material [139]. In all cases, the systems were coated with a Ni/Al 2 O 3 catalyst.…”

Section: Discussionmentioning

confidence: 99%

“…In this case, the structured catalyst of "zig-zag" configuration showed better results and the probable improvement of the heat and mass transport phenomena must be the reason. More recently, the same research team applied the 3DFD technique for obtaining the structured reactors using copper as raw material [139]. In all cases, the systems were coated with a Ni/Al2O3 catalyst.…”

Section: The Use Of Structured Reactors For the Sabatier Reactionmentioning

confidence: 99%

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Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

et al. 2018

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The current scenario where the effects of global warming are more and more evident, has motivated different initiatives for facing this, such as the creation of global policies with a clear environmental guideline. Within these policies, the control of Greenhouse Gase (GHG) emissions has been defined as mandatory, but for carrying out this, a smart strategy is proposed. This is the application of a circular economy model, which seeks to minimize the generation of waste and maximize the efficient use of resources. From this point of view, CO2 recycling is an alternative to reduce emissions to the atmosphere, and we need to look for new business models which valorization this compound which now must be considered as a renewable carbon source. This has renewed the interest in known processes for the chemical transformation of CO2 but that have not been applied at industrial level because they do not offer evident profitability. For example, the methane produced in the Sabatier reaction has a great potential for application, but this depends on the existence of a sustainable supply of hydrogen and a greater efficiency during the process that allows maximizing energy efficiency and thermal control to maximize the methane yield. Regarding energy efficiency and thermal control of the process, the use of structured reactors is an appropriate strategy. The evolution of new technologies, such as 3D printing, and the consolidation of knowledge in the structing of catalysts has enabled the use of these reactors to develop a wide range of possibilities in the field. In this sense, the present review presents a brief description of the main policies that have motivated the transition to a circular economy model and within this, to CO2 recycling. This allows understanding, why efforts are being focused on the development of different reactions for CO2 valorization. Special attention to the case of the Sabatier reaction and in the application of structured reactors for such process is paid.

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Section: Discussionmentioning

confidence: 99%

Section: The Use Of Structured Reactors For the Sabatier Reactionmentioning

confidence: 99%

Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

et al. 2018

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“…In addition, previously reported values (Danaci et al, 2016(Danaci et al, , 2018 54 for Ni coated 3D-SS and 3D-Cu were added to this comparison (wherein 3D-SS is a 3D printed stainless steel structure and 3D-Cu a 3D printed Cu structure). Regarding the effect of the geometry, the results for the 3D printed stainless steel and Cu coated structures (3D-SS and 3D-Cu, respectively) described by Danaci et al, 2016Danaci et al, , 2018 are shown in Figure 4 for comparison showing opposing results: while the CH4 yield for all the samples is at its highest at 350 °C, the coated structures show the maximum CH4 yield at 450 °C. In particular their CH4 selectivity (in Figure 4c), catches the eye as it displays the highest CH4 selectivity (98 %) overall, slightly above that of the 3D printed Octolyst structure at both 350 °C and 400 °C.…”

Section: Catalyst Activitymentioning

confidence: 99%

“…These results confirm the earlier conclusion that the highest catalytic activity (CH4 yield, CH4 selectivity and CO2 conversion) can be obtained by 3D printing the commercial catalyst. A notably sharp drop in selectivity (corresponding to low but increasing conversion) observed for Ni-alumina pellets and Ni-alumina beads leads to a loss in productivity at temperatures from 350 ° C. :CO2 ratio of 4:1 and at a GHSV of 3750 h -1 (total flow of 200 ml/min: 40 ml/min of H2 and 10 ml/min of CO2 in 150 ml/min of He) at 1 atm; the 3D printed Octolyst displayed all three points of conversion at the equilibrium maximum; corresponding thermodynamic equilibrium data points were calculated using the FactSage 7.2 software package 65 ; 3D-SS and 3D-Cu were previously described by Danaci et al, 2016, 2018.…”

Section: Catalyst Activitymentioning

confidence: 99%

3D printed Ni/Al2O3 based catalysts for CO2 methanation - a comparative and operando XRD-CT study

Middelkoop

Vamvakeros

Wit

et al. 2019

Journal of CO2 Utilization

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Ni-alumina-based catalysts were directly 3D printed into highly adaptable monolithic/multichannel systems and evaluated for CO2 methanation. By employing emerging 3D printing technologies for catalytic reactor design such as 3D fibre deposition (also referred to as direct write or microextrusion), we developed optimised techniques for tailoring both the support's macroand microstructure, as well as its active particle precursor distribution. A comparison was made between 3D printed commercial catalysts, Ni-alumina based catalysts and their conventional counterpart, packed beds of beads and pellet. Excellent CO2 conversions and selectivity to methane were achieved for the 3D printed commercial catalyst (95,75 and 95,63 % respectively) with stability of over 100 h. The structure-activity relationship of both the commercial and in-house 3D printed catalysts was explored under typical conditions for CO2 hydrogenation to CH4, using operando 'chemical imaging', namely X-Ray Diffraction Computed Tomography (XRD-CT). The 3D printed commercial catalyst showed a more homogenous distribution of the active Ni species compared to the in-house prepared catalyst. For the first time, the results from these comparative characterisation studies gave detailed insight into the fidelity of the direct printing method, revealing the spatial variation in physico-chemical properties (such as phase and size) under operating conditions.

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“…Different techniques are available to 3D print metallic structures, 9 such as robocasting, 10,11 selective electron beam melting (SEBM), 12 selective laser melting (SLM), binder jetting, investment casting 13 and combined 3D printing‐replica techniques.…”

Section: Introductionmentioning

confidence: 99%

Production and characterization of copper periodic open cellular structures made by 3D printing‐replica technique

Balzarotti

Bisaccia

Tripi

et al. 2020

J Adv Manuf & Process

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Innovative 3D-manufacture of structured copper supports post-coated with catalytic material for CO 2 methanation

Cited by 45 publications

References 26 publications

Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

Policies and Motivations for the CO2 Valorization through the Sabatier Reaction Using Structured Catalysts. A Review of the Most Recent Advances

3D printed Ni/Al2O3 based catalysts for CO2 methanation - a comparative and operando XRD-CT study

Production and characterization of copper periodic open cellular structures made by 3D printing‐replica technique

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