Carboxylic functionalized mesoporous polymers for fast, highly efficient, selective and reversible adsorption of ammonia

Zhang, Jiayin; Ma, Yongde; Wu, Wenquan; Cai, Zhenping; Cao, Yanning; Huang, Kuan; Jiang, Lilong

doi:10.1016/j.cej.2022.137640

Cited by 28 publications

(20 citation statements)

References 51 publications

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“…The comparison of the SPF–Na resin with other reported porous adsorbents such as PDVB-2.0AA, Mg 2 (dobpdc), Ni 2 (dobpdc), Co 2 Cl 2 (BBTA), COF-10, NU-1000-Cl-120, NU-1000-Cl-300, and NU-300 in terms of NH 3 adsorption capacity and reversibility is summarized and listed in Table S1 (Supporting Information). It is indicated that the adsorption capacities of NH 3 on porous adsorbents NU-1000-Cl-120, NU-1000-Cl-300, and NU-300 were obviously lower than the performance of the SPF–Na resin.…”

Section: Resultsmentioning

confidence: 99%

“…To this demand, many endeavors have been focused on exploring efficient solid adsorbents, such as zeolites, mesoporous silica, activated carbons, porous dyes, covalent organic frameworks (COFs), porous polymers, and metal–organic frameworks (MOFs), − to capture toxic NH 3 . However, the synthesis of most of these materials is tedious, or the raw materials are difficult to obtain.…”

Section: Introductionmentioning

confidence: 99%

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Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

Tan

Sun

et al. 2023

Ind. Eng. Chem. Res.

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Currently available liquid absorbents and porous adsorbents for capturing NH3 are often unfavorable in terms of possessing high stability and reusability. Herein, three novel sulfonated phenol–formaldehyde (SPF) resins with almost non-porosity were prepared through a facile polymerization of various phenol sulfonates with formaldehyde and applied to the adsorption of NH3. It is demonstrated that the SPF–Na resin displayed excellent reversibility and good stability for efficient NH3 adsorption (12.87 mmol·g–1) and superior ideal adsorption solution theory selectivities for 3% NH3/97% N2 (5076) and 3% NH3/97% H2 (2619) at 298.2 K and 1.0 bar even in 20 adsorption–desorption cycles, whereas common PF resin only achieved a very low capacity of 1.9 mmol·g–1. Column breakthrough results further confirmed that the SPF–Na resin showed good performance in selective adsorption of 3% NH3 in the mixture of NH3/N2/H2. Nonporous SPF resins with high stability, desired capacity, and outstanding reversibility are perceived as promising solid adsorbents for effectively capturing NH3 in the ammonia industry.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

Tan

Sun

et al. 2023

Ind. Eng. Chem. Res.

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“…Lee et al synthesized a microporous amic acid polymer with both Brønsted acidic and hydrogen-bond sites for efficient adsorption of NH 3 . Since then, a lot of other POPs with Brønsted acidic or hydrogen-bond sites were developed for the adsorption of NH 3 . − …”

Section: Solid Adsorptionmentioning

confidence: 99%

“…Therefore, the interaction of metal ions with NH 3 does not affect the major frameworks of POPs, and the POPs do not have the problems of framework collapse after NH 3 adsorption Table summarizes the functional types and NH 3 adsorption capacities of representative POPs reported in the literature. − …”

Section: Solid Adsorptionmentioning

confidence: 99%

A Mini-Review on NH₃ Separation Technologies: Recent Advances and Future Directions

Zhang

Zheng

et al. 2022

Energy Fuels

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NH3 has been recognized as a future carrier of energy considering its high content of H. It can be combusted directly, or decomposed on-site to release H2. For the application of NH3 as an energy carrier, the efficient separation of NH3 is an important task. So far, many technologies such as physical condensation, liquid absorption, solid adsorption, and membrane separation are available for the separation of NH3. Recently, the integration of physical condensation and solid adsorption was also proposed for the separation of NH3, to simultaneously utilize the advantages of both technologies. However, an up-to-date review providing an overall description of NH3 separation technologies is still absent. In this mini-review, we briefly summarized the recent advances in NH3 separation technologies, and mainly discussed the publications in the past five years. First, we sequentially introduced physical condensation, liquid absorption, solid adsorption, membrane separation, and integration technologies. Then, the future directions for the development of NH3 separation technologies were analyzed.

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“…Previous reports have shown the promise of using absorber columns packed with metal halides that can enable ammonia production at lower pressure. There are other materials that are proposed to separate gaseous ammonia, such as ionic liquids, eutectic solvents, zeolite, polymeric sorbents, etc. The ammonia sorption capacity of some of the newly developed absorbents and their suitable sorption conditions are summarized in Table S1.…”

Section: Introductionmentioning

confidence: 99%

Optimizing Reaction-Absorption Process for Lower Pressure Ammonia Production

Nowrin

Malmali

2022

ACS Sustainable Chem. Eng.

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Ammonia separation using metal halide absorbents has been shown to be a viable path for ammonia production at lower pressure. This work reports on optimizing the operating parameters of the reaction−absorption process that can be adapted for large-scale processing. The experiments were executed in three different modes. First, the effect of reaction parameters on the production rate was studied. Then, the absorption conditions were investigated in a single-pass reaction-then-absorption mode to evaluate the effectiveness of the absorbent at different temperatures, pressures, and space velocities. Finally, fed-batch reactionabsorption tests were conducted in constant pressure to evaluate the process performance with optimized conditions and gain more in-depth understanding of the transient behavior of this process. Results suggest that the recycle flow rate and absorber temperature significantly influence the ammonia production rates. These findings were then used to optimize the performance of a continuous fed-batch ammonia production process at constant pressure. A production rate upward of 27 μmol g cat s −1 was obtained under the most optimized conditions, which is a factor of 14 greater than the best result reported earlier. The optimized conditions were then used to study the cyclic operation of the fed-batch reaction− absorption process in a cyclic process. A transient behavior was observed for the ammonia production, which could be attributed to the partial saturation of the absorber column. Stable performance of reaction-absorption process was demonstrated for more than nine cycles, with no decay in the performance of the absorber after relatively short regeneration cycles.

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Carboxylic functionalized mesoporous polymers for fast, highly efficient, selective and reversible adsorption of ammonia

Cited by 28 publications

References 51 publications

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

A Mini-Review on NH₃ Separation Technologies: Recent Advances and Future Directions

Optimizing Reaction-Absorption Process for Lower Pressure Ammonia Production

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Carboxylic functionalized mesoporous polymers for fast, highly efficient, selective and reversible adsorption of ammonia

Cited by 28 publications

References 51 publications

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH3

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH3

A Mini-Review on NH3 Separation Technologies: Recent Advances and Future Directions

Optimizing Reaction-Absorption Process for Lower Pressure Ammonia Production

Contact Info

Product

Resources

About

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

Sulfonated Phenol–Formaldehyde Resins for Highly Efficient, Selective, and Reversible Adsorption of NH₃

A Mini-Review on NH₃ Separation Technologies: Recent Advances and Future Directions