Activated carbon and metal organic framework as adsorbent for low-pressure methane storage applications: an overview

Policicchio, Alfonso; Filosa, Raffaele; Abate, Salvatore; Desiderio, Giovanni; Colavita, E.

doi:10.1007/s10934-016-0330-9

Cited by 35 publications

(18 citation statements)

References 56 publications

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“…Among these factors, the surface area seems to primarily affect the CH4 storage capacity. Figure 4a clearly shows a positive correlation between the surface area and the CH4 storage capacity, as shown in previous studies [7,36,37]. By using upgraded ACs (AC-WA) in ANG experiments at 3.5 MPa in this study, the CH4 storage capacity of upgraded samples increased by 59.6% for AC-WR (0.273 g-CH4/g-ACs) compared with the low-grade sample (0.171 g-CH4/g-ACs).…”

Section: Methane Storage Capacity At Different Conditionssupporting

confidence: 87%

“…Among these factors, the surface area seems to primarily affect the CH 4 storage capacity. Figure 4a clearly shows a positive correlation between the surface area and the CH 4 storage capacity, as shown in previous studies [7,36,37]. of methane storage between adsorbed natural gas (ANG) and compressed natural gas (CNG) at different pressures (inset Figure 3b illustrating the ratio for ANG/CNG).…”

Section: Methane Storage Capacity At Different Conditionssupporting

confidence: 84%

“…As an alternative method for natural gas storage, adsorbed natural gas (ANG) systems, which can store natural gas at a relatively lower pressure (3)(4), have been considered and intensively studied [6][7][8][9][10]. The CH 4 storage capacity is the same or even higher than that of compressed natural gas (CNG) at 20 MPa.…”

Section: Introductionmentioning

confidence: 99%

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The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

et al. 2018

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In this study, a feasible experiment on adsorbed natural gas (ANG) was performed using activated carbons (ACs) with high surface areas. Upgraded ACs were prepared using chemical activation with potassium hydroxide, and were then applied as adsorbents for methane (CH4) storage. This study had three principal objectives: (i) upgrade ACs with high surface areas; (ii) evaluate the factors regulating CH4 adsorption capacity; and (iii) assess discharge conditions for the delivery of CH4. The results showed that upgraded ACs with surface areas of 3052 m2/g had the highest CH4 storage capacity (0.32 g-CH4/g-ACs at 3.5 MPa), which was over two times higher than the surface area and storage capacity of low-grade ACs (surface area = 1152 m2/g, 0.10 g-CH4/g-ACs). Among the factors such as surface area, packing density, and heat of adsorption in the ANG system, the heat of adsorption played an important role in controlling CH4 adsorption. The released heat also affected the CH4 storage and enhanced available applications. During the discharge of gas from the ANG system, the residual amount of CH4 increased as the temperature decreased. The amount of delivered gas was confirmed using different evacuation flow rates at 0.4 MPa, and the highest efficiency of delivery was 98% at 0.1 L/min. The results of this research strongly suggested that the heat of adsorption should be controlled by both recharging and discharging processes to prevent rapid temperature change in the adsorbent bed.

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Section: Methane Storage Capacity At Different Conditionssupporting

confidence: 87%

“…Among these factors, the surface area seems to primarily affect the CH 4 storage capacity. Figure 4a clearly shows a positive correlation between the surface area and the CH 4 storage capacity, as shown in previous studies [7,36,37]. of methane storage between adsorbed natural gas (ANG) and compressed natural gas (CNG) at different pressures (inset Figure 3b illustrating the ratio for ANG/CNG).…”

Section: Methane Storage Capacity At Different Conditionssupporting

confidence: 84%

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The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

et al. 2018

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“…However, adsorbents with high CH 4 adsorption capacity and high CH 4 /N 2 selectivity are prerequisites given the low concentration of CH 4 (0.1-1.5%) in ventilation air and the large volume of ventilation air. It has been demonstrated that the CH 4 uptake amount is almost linearly related to the surface area of the adsorbent; 90,97 meanwhile, it has also been revealed that the optimum pore diameter for CH 4 adsorption is within the range of 0.7-1.0 nm. [98][99][100] Therefore, an adsorbent with a high surface area associated with an optimal pore size is the key prerequisite for high CH 4 adsorption capacity.…”

Section: Materials For Selective Adsorption Of Ch 4 From Ch 4 -N 2 Mi...mentioning

confidence: 99%

Enrichment of low concentration methane: an overview of ventilation air methane

et al. 2022

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“…[19] This trend has been widely reported in the literature for different gases and it is demonstrated a strict correlation between adsorption capacity and textural properties of adsorbates. [20] In detail, it is proved that a high adsorption at lower pressure is connected with the presence of micropores, according to micropore filling theory according which smaller micropores with an overlapping adsorption force cause volume filling adsorption, reaching saturated adsorption at the low-pressure. On the contrary, the adsorption at higher pressure is related to pore-filling mechanism in mesopores.…”

Section: Introductionmentioning

confidence: 99%

Assessment of poly(L‐lactide) as an environmentally benign CO₂ capture and storage adsorbent

Stelitano

Lazzaroli

Conte

et al. 2020

J of Applied Polymer Sci

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Carbon capture and storage (CCS) in conjunction with an increasing use of renewables provides a clean pathway to sustainable development and climate change mitigation. In selecting a low temperature CCS adsorbent, parameters such as selectivity, regeneration energy, and economicity play a crucial role. Poly(L‐lactide) (PLA) is one of the most promising materials in science and engineering, not only because it is a green polymer progressively replacing petrobased plastics, but also for its carbon dioxide (CO2)‐philic nature that makes it a suitable candidate for greenhouse gas capture and climate change mitigation. Literature data point to PLA as a valid CCS candidate, although no direct gaseous CO2 adsorption investigation or with mild preparation/regenerative energy was reported. In the present experimental work, a deeper investigation of the adsorption/desorption properties of PLA in presence of gaseous CO2 at room temperature was undertaken by means of a home‐made Sievert‐type apparatus. The effects of pressure (0–15 bar), morphology (commercial pellets, powder, and flakes), and regenerative energy (303 and 333 K) were investigated. PLA samples were also characterized by helium picnometry to obtain skeletal density and by XRD and SEM to obtain morphological and structural information. Results show that PLA represents a valid and ecological alternative among the materials for the capture of CO2. The PLA absorption capacity reaches 16 wt% at 15 bar and 303 K, and is closely linked to the thermal treatment, morphology, and crystalline structure of the material.

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Activated carbon and metal organic framework as adsorbent for low-pressure methane storage applications: an overview

Cited by 35 publications

References 56 publications

The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

Enrichment of low concentration methane: an overview of ventilation air methane

Assessment of poly(L‐lactide) as an environmentally benign CO₂ capture and storage adsorbent

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Activated carbon and metal organic framework as adsorbent for low-pressure methane storage applications: an overview

Cited by 35 publications

References 56 publications

The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

The Effects of Methane Storage Capacity Using Upgraded Activated Carbon by KOH

Enrichment of low concentration methane: an overview of ventilation air methane

Assessment of poly(L‐lactide) as an environmentally benign CO2 capture and storage adsorbent

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Product

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Assessment of poly(L‐lactide) as an environmentally benign CO₂ capture and storage adsorbent