Experimental studies on 3A and 4A zeolite molecular sieves regeneration in TSA process: Aliphatic alcohols dewatering–water desorption

Gabruś, E.; Nastaj, J.; Tabero, P.; Aleksandrzak, Tomasz

doi:10.1016/j.cej.2014.07.108

Cited by 83 publications

(55 citation statements)

References 53 publications

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“…The results obtained are in a good accordance with the literature data for thermal 3A and 4A zeolite dehydration, offering the optimal dehydration temperature at the level of 240 C [8]. The dynamic adsorption capacity of these zeolites obtained at this temperature was shown to be 15-15.5%, which constituted about 65 % of the equilibrium adsorption capacity values.…”

Section: Effect Of Temperature On Naa Zeolite Adsorption Capacitysupporting

confidence: 90%

“…At the same time, MW dehydration time obtained in our experiments is much higher than that of the corresponding thermal process at the same temperature, being more than 200 min [8]. MW process acceleration can be explained, firstly, by inertialess and volumetric MW heating resulting in a speedy zeolite heating and dehydration, since the temperature and concentration gradients coincide in this case and are directed from the surface into the bulk of zeolite.…”

Section: Effect Of Temperature On Naa Zeolite Adsorption Capacitymentioning

confidence: 74%

“…Gabrus et al proposed in-situ thermal regeneration of 3A and 4A zeolites in the fixed bed after liquid-phase dewatering of aliphatic alcohols [8]. Thermal stability of zeolites, water adsorption capacity, adsorption selectivity and thermal desorption efficiency were carefully studied.…”

Section: Introductionmentioning

confidence: 99%

“…On the other hand, the temperature limitation exists, as high temperatures may cause partial or complete damage to zeolite matrix resulting in decrease in adsorption capacity and in zeolite life-time shortening [8].…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

The use of microwave irradiation for zeolite regeneration in a continuous ethanol dewatering process

Pinchukova

Voloshko

Baumer

et al. 2015

Chemical Engineering and Processing: Process Intensification

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Section: Effect Of Temperature On Naa Zeolite Adsorption Capacitysupporting

confidence: 90%

Section: Effect Of Temperature On Naa Zeolite Adsorption Capacitymentioning

confidence: 74%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

The use of microwave irradiation for zeolite regeneration in a continuous ethanol dewatering process

Pinchukova

Voloshko

Baumer

et al. 2015

Chemical Engineering and Processing: Process Intensification

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“…Temperature swing adsorption (TSA) process has been widely adopted for the adsorptive gas separation in practical application (Gabruś et al, 2015). As evidenced from the acetone-TPD results, most of acetone molecules can be effectively desorbed from the adsorbent surfaces of RMCM-41, RSBA-15 and RSBA-16(0.004) at 200°C.…”

Section: Cyclic Acetone Adsorption/desorption Testsmentioning

confidence: 93%

Adsorption/Desorption Behaviors of Acetone over Micro-/Mesoporous SBA-16 Silicas Prepared from Rice Husk Agricultural Waste

Zeng

Bai

2016

Aerosol Air Qual. Res.

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The preparation of micro-/mesoporous SBA-16 adsorbent by rice husk derived sodium silicate as the silica source and its acetone adsorption/desorption behaviors were reported for the first time. The pore structural properties of waste-derived SBA-16 materials were controlled and optimized by adjusting the surfactant/silica molar ratios from 0.002 to 0.01 for achieving the best acetone adsorption performance. And the relationship between structural properties and acetone adsorption performances of SBA-16 adsorbents was investigated. The resultant waste-derived SBA-16 materials, denoted as RSBA-16, had specific surface areas of 575-1001 m 2 g -1 , pore sizes of 3.3-3.7 nm and pore volumes of 0.41-0.72 cm 3 g -1 . Among the studied adsorbents, RSBA-16(0.004) exhibited the highest saturated acetone adsorption capacity of 179 mg g -1 . It also showed excellent regeneration stability during 20 consecutive cycles. The results indicated that specific surface areas in both micro-and meso-pore ranges were the main factor that determined the superiority of acetone adsorption capacity of RSBA-16(0.004) over other adsorbents such as mesoporous RMCM-41 and micro-/mesoporous RSBA-15. The acetone adsorption experiments at 500-5000 ppmv demonstrated that the adsorption isotherm was well fitted with the Langmuir model, thus the adsorption of acetone on RSBA-16 might be a monolayer physisorption process. The results demonstrated the high adsorption capacity and cyclic stability of waste-derived RSBA-16(0.004) can be considered as a potential adsorbent for VOCs removals.

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A “Liquid‐In‐Solid” Electrolyte for High‐Voltage Anode‐Free Rechargeable Sodium Batteries

Lu,

Yang,

et al. 2024

Advanced Materials

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Developing anode‐free batteries is the ultimate goal in pursuit of high energy density and safety. It is more urgent for sodium (Na)‐based batteries due to its inherently low energy density and safety hazards induced by highly reactive Na metal anodes. However, there is no electrolyte that can meet the demanding Na plating‐stripping Coulomb efficiency (CE) while resisting oxidative decomposition at high voltages for building stable anode‐free Na batteries. Here, a “liquid‐in‐solid” electrolyte design strategy is proposed to integrate target performances of liquid and solid‐state electrolytes. Breaking through the Na+ transport channel of Na‐containing zeolite molecular sieve by ion‐exchange and confining aggregated liquid ether electrolytes in the nanopore and void of zeolites, it achieves excellent high‐voltage stability enabled by solid‐state zeolite electrolytes, while inheriting the ultra‐high CE (99.84%) from liquid ether electrolytes. When applied in a 4.25 V‐class anode‐free Na battery, an ultra‐high energy density of 412 W h kg−1 (based on the active material of both cathodes and anodes) can be reached, which is comparable to the state‐of‐the‐art graphite||LiNi0.8Co0.1Mn0.1O2 lithium‐ion batteries. Furthermore, the assembled anode‐free pouch cell exhibits excellent cycling stability, and a high capacity retention of 89.2% can be preserved after 370 cycles.

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Experimental studies on 3A and 4A zeolite molecular sieves regeneration in TSA process: Aliphatic alcohols dewatering–water desorption

Cited by 83 publications

References 53 publications

The use of microwave irradiation for zeolite regeneration in a continuous ethanol dewatering process

The use of microwave irradiation for zeolite regeneration in a continuous ethanol dewatering process

Adsorption/Desorption Behaviors of Acetone over Micro-/Mesoporous SBA-16 Silicas Prepared from Rice Husk Agricultural Waste

A “Liquid‐In‐Solid” Electrolyte for High‐Voltage Anode‐Free Rechargeable Sodium Batteries

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