Dual-effect single-mixed refrigeration cycle: An innovative alternative process for energy-efficient and cost-effective natural gas liquefaction

Qyyum, Muhammad Abdul; He, Tianbiao; Qadeer, Kinza; Mao, Ning; Lee, Sanggyu; Lee, Moonyong

doi:10.1016/j.apenergy.2020.115022

Cited by 47 publications

(21 citation statements)

References 47 publications

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“…where η ex is the exergy efficiency,Ẇ t is the total power consumption, andẆ m is the theoretical minimum power, which can be described as (Qyyum et al, 2020b):…”

Section: Exergy Analysismentioning

confidence: 99%

“…Due to the small capacity and decentralized location of the biomethane production (Fan et al, 2008), small-scale biomethane liquefaction technologies are the most suitable option to recover these sources with a low capital cost and flexible operation (Baccioli et al, 2018). The conventional NG liquefaction processes, namely, cascade liquefaction process (Lee et al, 2014;Mehrpooya et al, 2016), mixed refrigerant liquefaction process (He et al, 2020b;Qyyum et al, 2020b), and expander-based liquefaction process (Lin et al, 2017;He et al, 2019), can be adapted to produce LBM. However, the cascade liquefaction process and most of the mixed refrigerant liquefaction processes are designed for the large-scale LNG plants with a complex configuration, making them unsuitable for small-scale LBM production.…”

Section: Introductionmentioning

confidence: 99%

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Black Hole-Inspired Optimal Design of Biomethane Liquefaction Process for Small-Scale Applications

Qyyum

Zhou

et al. 2021

Front. Energy Res.

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Biomethane is regarded as a promising renewable energy source, with great potential to satisfy the growth of energy demands and to reduce greenhouse gas emissions. Liquefaction is a suitable approach for long distances and overseas transportation of biomethane; however, it is energy-intensive due to its cryogenic working condition. The major challenge is to design a high-energy efficiency liquefaction process with simple operation and configuration. A single mixed refrigerant biomethane liquefaction process adopting the cryogenic liquid turbine for small-scale production has been proposed in this study to address this issue. The optimal design corresponding to minimal energy consumption was obtained through the black-hole-based optimization algorithm. The effect of the minimum internal temperature approach (MITA) in the main cryogenic heat exchanger on the biomethane liquefaction process performance was investigated. The study results indicated that the specific energy consumption of modified case 2 with MITA of 2°C was 0.3228 kWh/kg with 21.01% reduction compared to the published base case. When the MITA decreased to 1°C, the specific power of modified case 1 reduced to 0.3162 kWh/kg, which was 24.96% lower than the base case. In terms of exergy analysis, the total exergy destruction of the modified cases 1, 2, and 3 was 31.28%, 22.27%, and 17.51% lower than the base case, respectively. This study’s findings suggested that introducing the cryogenic liquid turbine to the single mixed refrigerant-based biomethane liquefaction process could reduce the specific energy consumption and total exergy destruction significantly. Therefore, this study could provide a viable path for designing and improving the small-scale biomethane liquefaction process.

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“…where η ex is the exergy efficiency,Ẇ t is the total power consumption, andẆ m is the theoretical minimum power, which can be described as (Qyyum et al, 2020b):…”

Section: Exergy Analysismentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Black Hole-Inspired Optimal Design of Biomethane Liquefaction Process for Small-Scale Applications

Qyyum

Zhou

et al. 2021

Front. Energy Res.

Self Cite

View full text Add to dashboard Cite

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“…An energy and cost-efficient dual-effect single mixed refrigerant (DSMR) process is proposed, and it employs a single loop refrigeration cycle to generate the dual cooling and subcooling effect, separately. The DMR process and the proposed DSMR process are simulated (with same design parameters) using well-known commercial simulator Aspen Hysys v10 (Qyyum et al, 2020).…”

Section: Frontiers In Heat and Mass Transfermentioning

confidence: 99%

Simulation and Optimization of Multistage Compressed DMR Natural Gas Liquefaction Process

Rong-ge¹,

Zhang²,

Xu³

et al. 2020

Frontiers in Heat and Mass Transfer

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“…This improvement has been optimized in system equipment power consumption and engineering construction period [23]. Qyyum [24] proposed a doubleeffect single mixed refrigerant (DSMR) process with good energy consumption and construction cost, which uses a single-loop refrigeration cycle to produce double cooling and supercooling effects. He [25] tested the stability and dynamic response of mixed refrigerant process.…”

Section: Introductionmentioning

confidence: 99%

Operation analysis of C3-MR process cold box by grey system theory

Yang

Xiao

Jia³

2021

SN Appl. Sci.

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In this paper, the problems of high refrigerant line differential pressure and uneven distribution of cold energy in cold box regulation under C3-MR process are studied. Five reasons are predicted by engineering performance. Using gas chromatography experiment and grey system pure mathematics analysis, it is determined that the main causes of the problem are unreasonable distribution ratio of each group of mixed refrigerants and disordered latent heat of vaporization of refrigerants. Furthermore, the grey system model is used to study: 1. grey relation analysis model shows that the correlation degree of T3 temperature measuring point is 0.8552, which is the only main factor. The abnormal working condition is determined by the project to be caused by incorrect proportion of N2 components. 2. According to GM(1,N) model, the driving term of T3 temperature measuring point is 3.8304, which needs to be supplemented with N2 component to eliminate the problem. 3. After adding N2 to 10% (mol component), abnormal working conditions disappeared. The GM(1,N) model is used again to verify that the difference of driving results is small, the average relative error is 24.91%, and the accuracy of the model is in compliance.

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Dual-effect single-mixed refrigeration cycle: An innovative alternative process for energy-efficient and cost-effective natural gas liquefaction

Cited by 47 publications

References 47 publications

Black Hole-Inspired Optimal Design of Biomethane Liquefaction Process for Small-Scale Applications

Black Hole-Inspired Optimal Design of Biomethane Liquefaction Process for Small-Scale Applications

Simulation and Optimization of Multistage Compressed DMR Natural Gas Liquefaction Process

Operation analysis of C3-MR process cold box by grey system theory

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