Hydrothermal stability of SAPO-34 for refrigeration and air conditioning applications

Chen, Haijun; Cui, Qi; Wu, Juan; Zhu, Yuezhao; Li, Quanguo; Zheng, Kai; Hu-qing, Yao

doi:10.1016/j.materresbull.2013.11.035

Cited by 12 publications

(10 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The surface area for aged samples, for shelf and cycle condition, is of 717.18 m 2 /g and 710.35 m 2 /g, respectively. The slight difference (less than 10%) between the surface area of fresh and aged samples is covered by the uncertainty of the instrument, and in accordance with previous findings obtained in . Accordingly, this characterization also confirms that the absorbent AQSOA Z02 is totally stable under the considered aging conditions.…”

Section: Case Study: Aqsoa Z02supporting

confidence: 91%

“…The slight difference (less than 10%) between the surface area of fresh and aged samples is covered by the uncertainty of the instrument, and in accordance with previous findings obtained in. 17 Accordingly, this characterization also confirms that the absorbent AQSOA Z02 is totally stable under the considered aging conditions. Finally, the pore size and the pore volume were also calculated by applying other models, such as Horvath-Kawazoe method.…”

Section: • Nitrogen Physisorptionsupporting

confidence: 70%

“…Besides, a protocol of mechanical stability verification was also proposed, verifying the stiffness, hardness, and resistance to impact and vibrations of the developed coating technologies. The hydrothermal stability of a SAPO‐34 was investigated in aprevious study, by cycling it in a dedicated setup, between 150°C and 27–30°C at saturated water vapor pressure corresponding to 25–27°C and 10°C in the condenser/evaporator, respectively. Up to 60 cycles were performed and the stability was checked by adsorption isotherm, X‐ray diffraction (XRD), nitrogen physisorption, and scanning electron microscopy (SEM).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

Frazzica

Brancato

2018

Int J Energy Res

View full text Add to dashboard Cite

Summary This paper presents an experimental protocol for the cycling stability of adsorbent materials for thermal energy storage (TES) applications under hydrothermal conditions. Two different aging conditions were identified, namely, cycle and shelf test. The former one mimicking the cycling between desorption and adsorption conditions, while the latter one keeping a constant temperature for long time under constant water vapor pressure. A flexible experimental setup was then designed and realized to contemporarily perform both aging condition under selectable operating conditions. The protocol defines different characterization methods to compare the fresh and the aged samples. The measurement of the water vapor adsorption equilibrium isobars represents the main parameter to directly highlight possible degradation phenomena. Subsequently, X‐ray diffraction patterns (XRD), nitrogen physisorption, and scanning electron microscopy coupled to energy dispersive x‐ray (SEM–EDX), are used to evaluate structural, textural, morphological, and elemental composition variation that can help in identifying the causes of possible degradation. The proposed protocol was employed to validate the stability of a commercial adsorbent, AQSOA Z02, that proved a quite stable behavior both under cycle and shelf investigated conditions.

show abstract

Section: Case Study: Aqsoa Z02supporting

confidence: 91%

Section: • Nitrogen Physisorptionsupporting

confidence: 70%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

Frazzica

Brancato

2018

Int J Energy Res

View full text Add to dashboard Cite

show abstract

“…We study the effect of this architecture on heat and mass transfer in the adsorbent coating and assess the practical performance under relevant sorption cycles using advanced thermal analysis. While the process is applicable to a variety of different adsorbent particles, SAPO-34 is used here due to its hydrothermal stability, 43 wide availability, and popular use in adsorption heat pumps. Bottom-up Directed Assembly.…”

Section: ■ Introductionmentioning

confidence: 99%

High-Power Adsorption Heat Pumps Using Magnetically Aligned Zeolite Structures

Ammann

Ruch

Michel

et al. 2019

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

Adsorption heat pumps offer a clean, zero-emission technology for universally applicable cooling or heating utilizing water as a refrigerant and waste or renewable heat as driving energy instead of electricity. Despite their attractive environmentally friendly prospects, the broader application of such classes of heat pumps has not yet been possible, mainly because of the low power density of adsorption heat exchangers and the corresponding large size and high cost of the adsorption heat pumps. We report an inexpensive route for the fabrication of zeolite coatings with high adsorption power density based on the bottom-up assembly of colloids directed by magnetic and capillary forces. Such an assembly process relies on the chaining of oil droplets under an external magnetic field during deposition of the coating, followed by the formation of a percolating network of bridged adsorbent particles upon drying. This results in vertically open channels and thermal bridges that facilitate directed mass and heat transport across the structured zeolite coating during sorption cycles. By reaching up to 3.3-fold higher performance than their unstructured counterparts using readily available zeolite as an adsorbent material, the architectured coatings produced through this facile, upscalable approach hold great potential for next-generation adsorption heat pumps.

show abstract

“…Similar to zeolites, SAPO catalysts can be prepared, even in the nanoscale for hydroconversion reactions without deactivation. They have been reported to show resistance to catalyst poisons (e.g., water or impurities in the reaction feed) and enhanced activity/stability properties during many reactions. − Therefore, this paper reports a mini review on the progress made on the applications of the zeolites (i.e., silicoaluminates) and the SAPO catalysts for the methanol to propylene reactions. Emphasis was placed on the role of catalyst properties (morphology, acidity, etc.)…”

Section: Introductionmentioning

confidence: 99%

Recent Developments on Silicoaluminates and Silicoaluminophosphates in the Methanol-to-Propylene Reaction: A Mini Review

Galadima

Muraza

2015

Ind. Eng. Chem. Res.

View full text Add to dashboard Cite

The increase in shale gas supply stimulates the exploration of different conversion paths from natural gas to fuels and chemicals. Methanol is a natural gas derivative with a strategic role in the production of fuels and chemicals. A promising industrial option is the conversion of methanol feedstock into propylene under affordable and economical reaction conditions. Although the methanol-to-hydrocarbon (MTH) reaction is a known technology for a few decades, key details related to catalyst development and overall experimental design must be fully explored. Therefore, the paper tailors recent updates on the progress made, especially on the key identified and prospective catalysts such as zeolites (i.e., silicoaluminates) and silicoaluminophosphates (SAPOs). This mini review also discusses the role of catalyst textural and acidity properties, reaction conditions, and associated reaction mechanisms.

show abstract

Hydrothermal stability of SAPO-34 for refrigeration and air conditioning applications

Cited by 12 publications

References 28 publications

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

Verification of hydrothermal stability of adsorbent materials for thermal energy storage

High-Power Adsorption Heat Pumps Using Magnetically Aligned Zeolite Structures

Recent Developments on Silicoaluminates and Silicoaluminophosphates in the Methanol-to-Propylene Reaction: A Mini Review

Contact Info

Product

Resources

About