A fundamental study of CO2 capture and CH4 production in a rapid cyclic system using nickel-lithium-silicate as a catal-sorbent

Jo, Seong Bin; Lee, Jong Heon; Kim, Tae Young; Woo, Jin Hyeok; Ryu, Ho-Jung; Hwang, Byungwook; Lee, Soo Chool; Kim, Jae Chang; Gilliard-AbdulAziz, Kandis Leslie

doi:10.1016/j.fuel.2021.122602

Cited by 21 publications

(11 citation statements)

References 53 publications

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“…Using the solid-state reaction, Jo et al also prepared nickel–lithium–silicate (Ni/LS) SECs . The working CO 2 capture capacity and CH 4 productivity of Ni/LS SECs were investigated and compared with Ni/CaO SECs in a rapid cyclic system.…”

Section: Integrated Co2 Capture and Utilizationmentioning

confidence: 99%

“…(a) Comparison of working CO 2 capture capacity and CH 4 productivity of Ni/CaO and Ni/LS SECs; molar flow rate of CO 2 and CH 4 of (b) Ni/CaO and (c) Ni/LS SECs at 1 and 5 cycles in a rapid cyclic system. Reproduced with permission from Reference . Copyright 2021, Elsevier.…”

Section: Integrated Co2 Capture and Utilizationmentioning

confidence: 99%

“…CO 2 capture capacity showed a positive correlation with temperatures. 229 They found that the captured CO 2 was converted completely to CH 4 at 500, and carbonation 230 The working CO 2 capture capacity and CH 4 productivity of Ni/LS SECs were investigated and compared with Ni/CaO SECs in a rapid cyclic system. The Ni/CaO SECs exhibited approximately three times higher working CO 2 capture capacity at 550 °C for 1 h at the first rapid cycle than the Ni/LS SECs.…”

Section: Integrated Co 2 Capture and Utilizationmentioning

confidence: 99%

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Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Cruz

Shah

et al. 2022

ACS Catal.

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Sorption-enhanced catalysts are bifunctional materials consisting of a heterogeneous catalyst affixed to a solid sorbent with a combined capacity to selectively capture and convert CO2 directly to value-added fuels and chemicals in the same reactor. The benefits of facile separation of CO2, directly from air or from flue gas, and conversion to chemical commodities is appealing for developing an integrated carbon capture and utilization scheme. The growth of this area is rapidly expanding with interest from catalysis, materials design, and life-cycle analysis researchers. However, the promise of sorption-enhanced catalysts is limited by their reduced thermal stability, CO2 capture capacity, and restricted product streams to C1 hydrocarbons. The prime issue is that the reaction conditions for the capture of CO2, regeneration of the sorbent, and utilization can be vastly different. It remains a challenge to optimize both the properties of the sorbent support material and the heterogeneous catalyst used. This perspective summarizes the current state-of-the-art for the properties of solid sorbents, heterogeneous catalysts, and the combined sorbent-enhanced catalysts for producing hydrocarbons from CO2. Lastly, the perspective discusses challenges and future areas for improving the performance and capture efficiency of sorption-enhanced catalysts.

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Section: Integrated Co2 Capture and Utilizationmentioning

confidence: 99%

Section: Integrated Co2 Capture and Utilizationmentioning

confidence: 99%

Section: Integrated Co 2 Capture and Utilizationmentioning

confidence: 99%

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Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Cruz

Shah

et al. 2022

ACS Catal.

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“…Currently, the CO 2 adsorption technique is used on some highly active materials, such as basic metal oxides, to combat global warming. In the pure form or promoted with other materials, MgO is regarded as a cornerstone component in all prepared materials for CO 2 capture purposes, among these basic metal oxides. − This characteristic relates to the abundance and strength of basic sites over the MgO surface. − Other types of adsorbents, including the reduced graphene oxide–MnO 2 nanocomposite, nickel–lithium silicate for CO 2 capture and subsequent production of CH 4 , Li 4 SiO 4 -based sorbents for high-temperature CO 2 capture, NiO-functionalized ultra-stable Y zeolite, Mg–Al mixed metal oxides for high-temperature CO 2 capture, alumina-supported layered double hydroxides, CuAl 2 O 4 nanoplates, Ni–CaO dual function materials, and CaO–Fe 2 O 3 –SiO 2 composite, have been extensively examined . Few articles have focused on the study of capturing CO 2 in a dynamic mode at different temperatures by flowing CO 2 gas at different rates through the adsorbents. , Many review articles with a forward-looking perspective discussed various CO 2 capture techniques − utilizing different adsorbent materials.…”

Section: Introductionmentioning

confidence: 99%

“… 2 − 9 This characteristic relates to the abundance and strength of basic sites over the MgO surface. 10 − 12 Other types of adsorbents, including the reduced graphene oxide–MnO 2 nanocomposite, 13 nickel–lithium silicate for CO 2 capture and subsequent production of CH 4 , 14 Li 4 SiO 4 -based sorbents for high-temperature CO 2 capture, 15 NiO-functionalized ultra-stable Y zeolite, 16 Mg–Al mixed metal oxides for high-temperature CO 2 capture, 17 alumina-supported layered double hydroxides, 18 CuAl 2 O 4 nanoplates, 19 Ni–CaO dual function materials, 20 and CaO–Fe 2 O 3 –SiO 2 composite, have been extensively examined. 21 Few articles have focused on the study of capturing CO 2 in a dynamic mode at different temperatures by flowing CO 2 gas at different rates through the adsorbents.…”

Section: Introductionmentioning

confidence: 99%

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

et al. 2022

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The utilization of Mg−O−F prepared from Mg(OH) 2 mixed with different wt % of F in the form of (NH 4 F•HF), calcined at 400 and 500 °C, for efficient capture of CO 2 is studied herein in a dynamic mode. Two different temperatures were applied using a slow rate of 20 mL•min −1 (100%) of CO 2 passing through each sample for only 1 h. Using the thermogravimetry (TG)-temperature-programed desorption (TPD) technique, the captured amounts of CO 2 at 5 °C were determined to be in the range of (39.6−103.9) and (28.9−82.1) mg COd 2 •g −1 for samples of Mg(OH) 2 mixed with 20−50% F and calcined at 400 and 500 °C, respectively, whereas, at 30 °C, the capacity of CO 2 captured is slightly decreased to be in the range of (32.2−89.4) and (20.9− 55.5) mg COd 2 •g −1 , respectively. The thermal decomposition of all prepared mixtures herein was examined by TG analysis. The obtained samples calcined at 400 and 500 °C were characterized by X-ray diffraction and surface area and porosity measurements. The total number of surface basic sites and their distribution over all samples was demonstrated using TG-and differential scanning calorimetry-TPD techniques using pyrrole as a probe molecule. Values of (ΔH) enthalpy changes corresponding to the desorption steps of CO 2 were calculated for the most active adsorbent in this study, that is, Mg(OH) 2 + 20% F, at 400 and 500 °C. This study's findings will inspire the simple preparation and economical design of nanocomposite CO 2 sorbents for climate change mitigation under ambient conditions.

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Synergistic promotions of K doping on CO₂ capture and in situ conversion

Xie,

Shao,

Sun

et al. 2023

AIChE Journal

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The integrated CO2 capture and conversion (iCCC) technology has been recognized as a promising strategy for upcycling the emitted CO2 into artificial carbon sequestration but still demands highly efficient dual functional materials (DFMs). We develop an efficient iCCC process of the integrated lithium‐looping (LiL) and reverse water gas shift reaction through deeply understanding K doping in the novel Kx‐Li4SiO4@Niy DFMs. The appropriate K doping enables the fast diffusion of CO2 and H2 into the bulk DFMs through forming LiKCO3 surface eutectic layer as well as strongly interacts with catalyst Ni to generate new medium basic sites for synergistic promotions of CO2 capture and in situ conversion. More importantly, after the pelletization, the LP‐K0.2‐Li4SiO4@Ni10 DFM (20–40 mesh) avoids the agglomeration and achieves an excellent and stable iCCC cycle performance, with CO2 capture capacity of 3.8 mmol/g, CO2 conversion efficiency of 90%, and CO selectivity close to 100% at 550°C in one fixed‐bed column.

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A fundamental study of CO2 capture and CH4 production in a rapid cyclic system using nickel-lithium-silicate as a catal-sorbent

Cited by 21 publications

References 53 publications

Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

Synergistic promotions of K doping on CO₂ capture and in situ conversion

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A fundamental study of CO2 capture and CH4 production in a rapid cyclic system using nickel-lithium-silicate as a catal-sorbent

Cited by 21 publications

References 53 publications

Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Perspective on Sorption Enhanced Bifunctional Catalysts to Produce Hydrocarbons

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO2 at Different Temperatures under Ambient Pressure

Synergistic promotions of K doping on CO2 capture and in situ conversion

Contact Info

Product

Resources

About

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

Synergistic promotions of K doping on CO₂ capture and in situ conversion