Proposal and investigation of a novel small-scale natural gas liquefaction process using diffusion absorption refrigeration technology

Mehrpooya, Mehdi; Amirhaeri, Yasaman; Hadavi, Hamed

doi:10.1007/s11696-022-02294-x

Cited by 6 publications

(1 citation statement)

References 54 publications

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“…It is also feasible to use the unit’s squandered energy by utilizing ACCs. − The most famous working fluids for single-stage ACCs are water/lithium bromide (LiBr/H 2 O) and ammonia/water (NH 3 /H 2 O) . In addition, much research has been conducted on the performance of ACCs using other working fluids such as ammonia/lithium nitrate (LiNO 3 /NH 3 ), lithium bromide + zinc bromide/methoxide (LiBr + ZnBr 2 /CH 3 O), and calcium chloride/water (H 2 O/CaCl 2 ). , There are studies on the use of this technology, especially in power plants, food industries, , and oil and gas industries. , In particular, some studies have been conducted for the indirect use of ACCs to improve cooling performance in the LNG industry. − Also, diffusion–absorption − and absorption–compression − refrigeration process cycles are used to provide refrigeration in integrated structures. Figure illustrates a schematic of multieffect ACCs used in integrated systems.…”

Section: Different Methods To Improve the Performance Of Hydrogen Liq...mentioning

confidence: 99%

Strategies To Improve the Performance of Hydrogen Storage Systems by Liquefaction Methods: A Comprehensive Review

et al. 2023

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The main challenges of liquid hydrogen (H2) storage as one of the most promising techniques for large-scale transport and long-term storage include its high specific energy consumption (SEC), low exergy efficiency, high total expenses, and boil-off gas losses. This article reviews different approaches to improving H2 liquefaction methods, including the implementation of absorption cooling cycles (ACCs), ejector cooling units, liquid nitrogen/liquid natural gas (LNG)/liquid air cold energy recovery, cascade liquefaction processes, mixed refrigerant systems, integration with other structures, optimization algorithms, combined with renewable energy sources, and the pinch strategy. This review discusses the economic, safety, and environmental aspects of various improvement techniques for H2 liquefaction systems in more detail. Standards and codes for H2 liquefaction technologies are presented, and the current status and future potentials of H2 liquefaction processes are investigated. The cost-efficient H2 liquefaction systems are those with higher production rates (>100 tonne/day), higher efficiency (>40%), lower SEC (<6 kWh/kgLH2), and lower investment costs (1–2 $/kgLH2). Increasing the stages in the conversion of ortho- to para-H2 lowers the SEC and increases the investment costs. Moreover, using low-temperature waste heat from various industries and renewable energy in the ACC for precooling is significantly more efficient than electricity generation in power generation cycles to be utilized in H2 liquefaction cycles. In addition, the substitution of LNG cold recovery for the precooling cycle is associated with the lower SEC and cost compared to its combination with the precooling cycle.

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Section: Different Methods To Improve the Performance Of Hydrogen Liq...mentioning

confidence: 99%

Strategies To Improve the Performance of Hydrogen Storage Systems by Liquefaction Methods: A Comprehensive Review

et al. 2023

View full text Add to dashboard Cite

show abstract

Energy and exergy analysis-based monthly co-optimization of a poly-generation system for power, heating, cooling, and hydrogen production

Amirhaeri

Pourfayaz

Hadavi

et al. 2022

J Therm Anal Calorim

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Evaluation of small-scale liquefied natural gas (SSLNG) processes: advanced exergoeconomic analysis

et al. 2022

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Proposal and investigation of a novel small-scale natural gas liquefaction process using diffusion absorption refrigeration technology

Cited by 6 publications

References 54 publications

Strategies To Improve the Performance of Hydrogen Storage Systems by Liquefaction Methods: A Comprehensive Review

Strategies To Improve the Performance of Hydrogen Storage Systems by Liquefaction Methods: A Comprehensive Review

Energy and exergy analysis-based monthly co-optimization of a poly-generation system for power, heating, cooling, and hydrogen production

Evaluation of small-scale liquefied natural gas (SSLNG) processes: advanced exergoeconomic analysis

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