Performance comparisons of NH3/ionic liquid absorption–compression heat pump for increasing the utilization of geothermal energy

Wu, Wei; You, Tingting; Li, Xianting

doi:10.1016/j.ijrefrig.2019.04.024

Cited by 23 publications

(3 citation statements)

References 57 publications

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“…Recently, ionic liquids (ILs) were proposed as a new type of scrubbers for the elimination of NH 3 from industrial streams 12,13 . ILs are organic salts comprising of asymmetric cations and anions, and exist in liquid state at or near room temperature 14–16 .…”

Section: Introductionmentioning

confidence: 99%

“…Recently, ionic liquids (ILs) were proposed as a new type of scrubbers for the elimination of NH 3 from industrial streams. 12,13 ILs are organic salts comprising of asymmetric cations and anions, and exist in liquid state at or near room temperature. [14][15][16] They have many distinctive features, among which the extremely low volatility and unlimited structural designability are particularly attractive.…”

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confidence: 99%

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Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Cheng

Lan

et al. 2022

AIChE Journal

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The elimination and recycling of NH3 from the vented circulating stream of NH3 synthesis process is of great significance to the protection of air environment and saving of NH3 product. Deep eutectic solvents (DESs) with as many weak acidic sites as possible are anticipated to exhibit high efficiency for NH3 absorption at low pressures. Herein, we designed and prepared a series of metal‐based DESs by mixing EaCl, metal chloride (SnCl2, ZnCl2, FeCl3, or CoCl2), and Gly. The physiochemical properties, NH3 absorption performance, and mechanism of prepared metal‐based DESs were investigated systematically. It is found that considerably high solubilities of NH3 in DESs can be achieved by utilizing the multiple coordination and hydrogen‐bond interaction with NH3 provided by metal ions and Gly respectively. The values of NH3 solubilities (17.55 mol/kg at 298.2 K and 103.0 kPa, and 10.24 mol/kg at 298.2 K and 6.8 kPa) are the highest reported to date.

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Section: Introductionmentioning

confidence: 99%

mentioning

confidence: 99%

Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Cheng

Lan

et al. 2022

AIChE Journal

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“…Markmann 29 exploited a hybrid system using H 2 O/NH 3 as working fluid, which was able to cover heating demand around 373.15 K and supply additional chilled water. Wu 30 carried out study on the absorption‐compression cycle with IL/NH 3 mixtures. Results showed that [OMIM][BF 4 ] yields the largest heating COP .…”

Section: Introductionmentioning

confidence: 99%

Thermodynamic performance of absorption‐compression hybrid refrigeration cycles based on lithium nitrate+1‐butyl‐3‐methylimidazolium nitrate/water working fluid

Wang

Li²,

Luo

2020

Int J Energy Res

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In this paper, LiNO 3 (lithium nitrate)-[BMIM]NO 3 (1-butyl-3-methylimidazolium nitrate)/H 2 O is presented for absorption-compression hybrid refrigeration. The thermophysical properties and corrosion of this ternary system were measured. The performance of this hybrid system using LiNO 3-[BMIM]NO 3 / H 2 O was studied and compared with those based on LiBr (lithium bromide)/ H 2 O, LiNO 3 /H 2 O, and LiNO 3-[MMIM][DMP] (1,3-dimethylimidazolium dimethylphosphate)/H 2 O. Results showed that the hybrid refrigeration cycles can work at much lower generator and evaporator temperatures in comparison with the pure absorption cycle. Generator temperatures of both hybrid cycles based on this working fluid were lower than those using the other working fluids. At different refrigeration temperatures, the generator temperatures of both hybrid cycles using this presented working fluid were reduced about 7 and 10 K, respectively, in comparison with those based on LiBr/ H 2 O. Compared with other working fluids, both single-and double-effect hybrid systems using this new working fluid achieved a larger coefficient of performance around 0.88 and 1.6, respectively. Additionally, the exergetic efficiency for both hybrid cycles is also about 10% larger than that using LiBr/ H 2 O. And this working fluid shows an excellent thermal stability below 598.32 K and acceptable high-temperature anti-corrosion to metallic materials. Moreover, the hybrid cycle using LiNO 3-[BMIM]NO 3 /H 2 O of 80 kW has a shorter payback period of 5.51 years when utilizing solar energy as the driven heat source. Therefore, LiNO 3-[BMIM]NO 3 /H 2 O shows great advantages in the absorption-compression hybrid cycles.

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Advances in Waste Heat and Renewable Energy Utilization

You

2019

Absorption Heating Technologies

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Performance comparisons of NH3/ionic liquid absorption–compression heat pump for increasing the utilization of geothermal energy

Cited by 23 publications

References 57 publications

Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Thermodynamic performance of absorption‐compression hybrid refrigeration cycles based on lithium nitrate+1‐butyl‐3‐methylimidazolium nitrate/water working fluid

Advances in Waste Heat and Renewable Energy Utilization

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Performance comparisons of NH3/ionic liquid absorption–compression heat pump for increasing the utilization of geothermal energy

Cited by 23 publications

References 57 publications

Remarkable NH3 absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Remarkable NH3 absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Thermodynamic performance of absorption‐compression hybrid refrigeration cycles based on lithium nitrate+1‐butyl‐3‐methylimidazolium nitrate/water working fluid

Advances in Waste Heat and Renewable Energy Utilization

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Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction

Remarkable NH₃ absorption in metal‐based deep eutectic solvents by multiple coordination and hydrogen‐bond interaction