The optimization and thermodynamic and economic estimation analysis for CO2 compression-liquefaction process of CCUS system using LNG cold energy

Xin, Yue; Zhang, Yindi; Peng, Xue; Wang, Ke; Adu, Emmanuel; Tontiwachwuthikul, Paitoon

doi:10.1016/j.energy.2021.121376

Cited by 20 publications

(9 citation statements)

References 39 publications

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“…The commercial viability and market-acceptance significantly motivate the use of LNG-fueled ships due to their economic and environmental merits. LNG-fueled ships will play an essential role in a near-term transition toward zero-carbon shipping (Kumar et al, 2011;Thomson et al, 2015;IMO, 2016;Schinas and Butler, 2016;Xin et al, 2021).…”

Section: Eco-friendly Fuelsmentioning

confidence: 99%

An Overview of Multi-Energy Microgrid in All-Electric Ships

et al. 2022

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Owing to the severe fossil energy shortage and carbon pollution, the extensive electrification of maritime transportation, represented by all-electric ships (AESs), has become an appealing solution to increase the efficiency and environmental friendliness of the industry. To improve energy utilization, not only renewable energy but also thermal energy has been introduced is used in AESs. However, various uncertainties that are associated with renewable energy and ship motions significantly inhibit and complicate the operation and navigation of multi-energy shipboard microgrids. Accordingly, a new coordination of optimal energy management and voyage scheduling is important in reducing both the costs and emissions of AESs. This overview characterizes shipboard microgrids and several emerging technical challenges related to joint power and voyage scheduling, and elucidates prospects for further research, based on a comprehensive survey of the relevant literature.

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Section: Eco-friendly Fuelsmentioning

confidence: 99%

An Overview of Multi-Energy Microgrid in All-Electric Ships

et al. 2022

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“…Due to the influence of hydrogen ing, the generation of CO2 and N2 decreases, and the generation of H2O increases, aff the change of specific heat capacity in the combustion area. The mass-weighted in method is used for the entire area, as shown in Equation (3), to obtain the change o cific heat capacity at constant pressure in the combustion area under various hyd blending ratio conditions, as also shown in Figure 19.…”

Section: Emission Detection Of Combustion Pollutantsmentioning

confidence: 99%

“…As important renewable energy, hydrogen energy is being jointly promoted by the global trend of clean and low-carbon energy and the progress of the hydrogen energy technology. Due to the large-scale use of hydrogen energy, global CO 2 emission will be reduced by 20% by 2050 [3]. At present, the development and construction of the natural gas pipeline network have experienced a maturity, and it is feasible to mix hydrogen in it for utilization, and the energy storage is huge.…”

Section: Introductionmentioning

confidence: 99%

Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers

et al. 2021

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Hydrogen mixed natural gas for combustion can improve combustion characteristics and reduce carbon emission, which has important engineering application value. A casing swirl burner model is adopted to numerically simulate and research the natural gas hydrogen mixing technology for combustion in gas boilers in this paper. Under the condition of conventional air atmosphere and constant air excess coefficient, the six working conditions for hydrogen mixing proportion into natural gas are designed to explore the combustion characteristics and the laws of pollution emissions. The temperature distributions, composition, and emission of combustion flue gas under various working conditions are analyzed and compared. Further investigation is also conducted for the variation laws of NOx and soot generation. The results show that when the boiler heating power is constant, hydrogen mixing will increase the combustion temperature, accelerate the combustion rate, reduce flue gas and CO2 emission, increase the generation of water vapor, and inhibit the generation of NOx and soot. Under the premise of meeting the fuel interchangeability, it is concluded that the optimal hydrogen mixing volume fraction of gas boilers is 24.7%.

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“…With the influence of the continued growth in energy demand and the carbon capture, utilization, and storage (CCUS) policy, the acceleration of the exploration and development of natural gas, represented by tight sandstone gas, has become one of the hot spots of contemporary research. 1,2 Tight sandstone gas is widely distributed in the Ordos, Sichuan, Tarim, Songliao, Bohai Bay, and other basins in China, 3,4 with an estimated resource of about 21.85 × 10 12 m 3 . In terms of reserves and production, it is the most important unconventional natural gas resource in China with the most realistic significance for exploration and development.…”

Section: Introductionmentioning

confidence: 99%

Effect of Pore-Throat Heterogeneity on Gas–Water Flow in Tight Gas Reservoirs: From Micro- to Centimeter Scale

Wang,

Kang,

You

et al. 2024

Energy Fuels

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The practice of gas reservoir development shows that tight sandstone gas wells show an ultralow water flowback rate, even if the displacement differential pressure is continuously increased. Scholars have studied the influence of physical properties, pore structure, and fluid properties on flowback efficiency, but the influence of heterogeneity on water phase flowback is still not sufficient, especially comprehensive research across different scales. To deal with this, we investigate the effect of heterogeneity on fluid flow capability through centimeter core-scale experiments and micrometer pore-scale simulations. First, on the basis of the bounds of different pore-throat structure testing methods, the full-scale pore size distribution (PSD) and throat size distribution (TSD) structures are characterized by splicing. Next, we extract the high-pressure mercury injection (HPMI) sorting coefficient and the pixel variation coefficient of pore segmentation in scanning electron microscopy (SEM) images as the characterization parameters of heterogeneity. Direct experimental evidence shows that the stronger the rock heterogeneity, the larger the sorting coefficient and variation coefficient and the weaker the fluid mobility. It is difficult to improve the gas phase seepage ability even with a continuously increasing displacement pressure differential. Finally, we explored whether the reason for this phenomenon is mainly controlled by heterogeneity. We carried out microfluidic simulations, and the simulation results provide a good complementary explanation for this phenomenon. The preferential flow pathway effect induced by strong heterogeneity makes it impossible to affect the fluid flow state by only changing the displacement pressure differential, and it is difficult for the displacement phase to establish a new flow channel. The findings at different scales provide unique insights into the combined effects of pore heterogeneity and displacement pressure differentials on fluid flow.

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The optimization and thermodynamic and economic estimation analysis for CO2 compression-liquefaction process of CCUS system using LNG cold energy

Cited by 20 publications

References 39 publications

An Overview of Multi-Energy Microgrid in All-Electric Ships

An Overview of Multi-Energy Microgrid in All-Electric Ships

Numerical Simulation of Combustion of Natural Gas Mixed with Hydrogen in Gas Boilers

Effect of Pore-Throat Heterogeneity on Gas–Water Flow in Tight Gas Reservoirs: From Micro- to Centimeter Scale

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