Technoeconomic perspectives on sustainable CO2 capture and utilization

Karimi, Iftekhar A.; Kawi, Sibudjing

doi:10.1007/s11356-016-7838-z

Cited by 7 publications

(2 citation statements)

References 9 publications

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“…In spite of the great effort that has been put towards the development of renewable and green energy, fossil fuels are still our major energy source. Another strategy to solve the problem is the capture and utilization of CO 2 as a feedstock for the production of fuels and chemicals . Thus, not only could the CO 2 concentration in the atmosphere be reduced but also valuable chemicals can be produced …”

Section: Introductionmentioning

confidence: 99%

Sandwich‐Like Silica@Ni@Silica Multicore–Shell Catalyst for the Low‐Temperature Dry Reforming of Methane: Confinement Effect Against Carbon Formation

2017

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We synthesize a new sandwich‐like silica@Ni@silica multicore–shell catalyst. Firstly, Ni phyllosilicate (NiPS) is supported on silica nanospheres by a simple ammonia evaporation method. Then NiPS is coated with a layer of mesoporous silica to obtain a core–shell NiPS@silica structure by the hydrolysis of tetraethylorthosilicate (TEOS). The thickness of the shell can be tuned by varying the amount of TEOS. After calcination and H2 reduction at high temperature, multiple small Ni nanoparticles (≈6 nm) are generated and supported on the inner silica core but also encapsulated within the outer mesoporous silica shell. This silica@Ni@silica multicore–shell catalyst shows a high and stable conversion (≈60 %, gas hourly space velocity=60 000 mL h−1 gcat−1) for the dry reforming of methane (DRM) at 600 °C, whereas pristine NiPS deactivates quickly because of heavy carbon formation. We investigated the spent catalysts by using thermogravimetric analysis and TEM and found that there is almost no carbon formation for this new multicore–shell catalyst. Compared with a conventional Ni@silica core–shell catalyst, our multicore–shell catalyst is much easier to synthesize and the process does not require any toxic organic solvents. We believe that this strategy to make a multicore–shell catalyst can be applied to more nanomaterials and extended to other catalytic reactions besides DRM.

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Section: Introductionmentioning

confidence: 99%

Sandwich‐Like Silica@Ni@Silica Multicore–Shell Catalyst for the Low‐Temperature Dry Reforming of Methane: Confinement Effect Against Carbon Formation

2017

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“…Most of the research has been aimed at addressing this problem through CCS and CCU techniques. A number of authors have reviewed the technologies and current challenges with respect to CCS (Li, et al 2013;Rahman, et al 2017) and CCU (Almomoori, et al 2017; Karimi and Kawi, 2016;Lin and Biddinger, 2017;Yuan, et al 2015;Kongpanna et al 2015;Roh, et al 2016a). The approach primarily being employed is to manage the CO 2 concentrations after it has been released, that is "cure" the problem.…”

Section: Co 2 Emissions and Managementmentioning

confidence: 99%

Sustainable chemical processing and energy-carbon dioxide management: Review of challenges and opportunities

Vooradi

Bertran

Frauzem

et al. 2018

Chemical Engineering Research and Design

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Catalytic conversion of CO2 into methanol

Berahim

Zabidi²

2022

Carbon Dioxide Capture and Conversion

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Technoeconomic perspectives on sustainable CO2 capture and utilization

Cited by 7 publications

References 9 publications

Sandwich‐Like Silica@Ni@Silica Multicore–Shell Catalyst for the Low‐Temperature Dry Reforming of Methane: Confinement Effect Against Carbon Formation

Sandwich‐Like Silica@Ni@Silica Multicore–Shell Catalyst for the Low‐Temperature Dry Reforming of Methane: Confinement Effect Against Carbon Formation

Sustainable chemical processing and energy-carbon dioxide management: Review of challenges and opportunities

Catalytic conversion of CO2 into methanol

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