Thermodynamic analysis of a novel power plant with LNG (liquefied natural gas) cold exergy exploitation and CO2 capture

Gómez, Manuel Romero; Gómez, Javier; González, Luis Español

doi:10.1016/j.energy.2015.09.011

Cited by 63 publications

(10 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…1 Natural gas represents a key transition fuel that can help meet this objective because it is found in abundance and, when combusted, produces about half the CO 2 emissions of coal as well as greatly reduced particulate emissions. 2 Accordingly, natural gas production, processing and utilization are topics that have been considered extensively [3][4][5][6][7][8][9] , including in many studies by Marsh and coworkers. [10][11][12][13][14][15][16][17][18][19][20][21][22][23] Liquefied natural gas (LNG) is essential to the intercontinental trade of natural gas because the liquid phase has an economically viable energy density.…”

Section: Introductionmentioning

confidence: 99%

“…Natural gas represents a key transition fuel that can help meet this objective because it is found in abundance and, when combusted, produces about half the CO 2 emissions of coal as well as greatly reduced particulate emissions . Accordingly, natural gas production, processing, and utilization are topics that have been considered extensively, − including in many studies by Marsh and co-workers. − Liquefied natural gas (LNG) is essential to the intercontinental trade of natural gas because the liquid phase has an economically viable energy density. However, the production of LNG is technically demanding, as it requires the exploitation and detailed understanding of phase equilibrium in multicomponent mixtures at high pressure and low temperatures. − …”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Visual Measurements of Solid–Liquid Equilibria and Induction Times for Cyclohexane + Octadecane Mixtures at Pressures to 5 MPa

et al. 2017

View full text Add to dashboard Cite

A specialized apparatus designed for visual measurements of solid-liquid equilibrium (SLE) and solid-liquid-vapor equilibrium (SLVE) was constructed and used to measure liquidus (melting) temperatures in binary mixtures of cyclohexane (C 6 H 12) and octadecane (C 18 H 38) across the entire range of composition and at pressures from about (0.004 to 5.3) MPa. A Peltier-cooled copper tip immersed in the liquid mixture was used to determine both freezing and melting temperatures by varying the temperature of the copper tip relative to the stirred, bulk liquid. With the bulk liquid held at the mixture's SLVE temperature, the induction time required to nucleate solid octadecane decreased exponentially as the subcooling of the copper tip increased, halving approximately every 0.25 K. At higher pressures, while the melting temperature of pure cyclohexane (cyC 6) increased by about 0.55 KMPa-1 , at x cyC6 = 0.5675 it increased by only 0.15 KMPa-1. The new data were compared with measurements reported in the literature, empirical correlations describing those literature data, and the predictions of models based on cubic equations of state (EOS), including the Peng-Robinson Advanced (PRA) EOS implemented in the software Multiflash. The best description of the data was achieved by adjusting the binary interaction parameter in the PRA model from 0 to-0.0324, which reduced the deviation of the SLVE data at the eutectic point (x cyC6 0.95) from (12.8 to-0.2) K. Although the accuracy of predictions made with the SLVE-tuned PRA EOS deteriorated slightly at pressures around 5 MPa, they were still as good as, or better, than the empirical correlations available for this system. Furthermore, the SLVE-tuned PRA EOS was more accurate at describing literature VLE data for this binary than the default PRA EOS, reducing the r.m.s. deviation in bubble temperature predictions from (6.7 to 0.67) K.

show abstract

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Visual Measurements of Solid–Liquid Equilibria and Induction Times for Cyclohexane + Octadecane Mixtures at Pressures to 5 MPa

et al. 2017

View full text Add to dashboard Cite

show abstract

“…1 To meet the target of keeping global warming within 2 °C above preindustrial levels, we need to halve oil production and consumption, stop combusting fossil fuels for electricity, 2 and start to efficiently capture atmospheric CO 2 . 3,4 Serious measures are also required to increase and optimize renewable and climate-neutral electricity supplies 5,6 and to satisfy the globally increasing demand for energy storage. 7 Indeed, current efforts aim at enhancing energy production from hydro and geothermal reservoirs, 8,9 developing better solar panels 10 and flow-driven turbines, 11 increasing the height of wind towers, 12 optimizing the design of tide barrages, 13 and more efficiently exploiting genetically modified phototrophic microbes 14 or their consortia 15 to produce energy-rich biomass and biodiesel feedstock.…”

Section: ■ Freshwaters Powering the Worldmentioning

confidence: 99%

“…Notwithstanding these potential ecosystem-scale effects, when we consider the dire need for innovative energy solutions, reducing anthropogenic GHG emissions, and lowering levels of GHGs in the atmosphere, tapping freshwaters for CH 4 and energy appears as a potential masterstroke. With the rapid emergence of recently optimized technologies to harvest the reducing power of lakes and reservoirs worldwide, globally integrated, locally fueled, and climateneutral gas-to-power grids could be created.…”

Section: For Ch 4 Harvesting In Freshwatersmentioning

confidence: 99%

Tapping Freshwaters for Methane and Energy

Bartosiewicz

Rzepka

Lehmann

2021

Environ. Sci. Technol.

View full text Add to dashboard Cite

Energy supply limits development through fuel constraints and climatic effects. Production of renewable energy is a central pillar of sustainability but will need to play an increasingly important role in energy generation in order to mitigate fossil-fuel based greenhouse-gas emissions. Global freshwaters represent a vast reservoir of biomass and biogenic CH 4 . Here we demonstrate the great potential for the optimized use of this nonfossil carbon as a source of energy that is replenishable within a human lifetime. The feasibility of up-scaled adsorption-driven technologies to capture and refine aqueous CH 4 still awaits verification, yet recent estimates of global freshwater CH 4 production imply that the worldwide energy demand could be satisfied by using the "biofuel" building up in lakes and wetlands. Biogenic CH 4 is mostly generated from biomass produced through atmospheric CO 2 uptake. Its exploitation in freshwaters can thus secure large amounts of carbon-neutral energy, helping to sustain the planetary equilibrium.

show abstract

“…The extraction and utilization of this cold energy has great potential to improve the combined efficiency and to reduce the overall capital and operating costs. Various methods for the LNG cold energy recovery have been proposed, evaluated, and optimized in the literature, including the integration with power generation [54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69][70], air separation or other low-temperature fractionation [71][72][73][74][75][76], seawater desalination [77,78], agro food deep-freezing and space air conditioning [79][80][81], etc. Utilizing the LNG cold energy for power generation is less influ-enced by the ambient condition, downstream market supply and demand, transportation etc., and attracts the most attention worldwide.…”

Section: Cold Energy Recovery Considerationmentioning

confidence: 99%

Design of an Intermediate Fluid Vaporizer for Liquefied Natural Gas

Chen

Fan

2017

Chem Eng & Technol

View full text Add to dashboard Cite

The intermediate fluid vaporizer (IFV) owns various advantages over other types of liquefied natural gas (LNG) vaporizers. Research findings related to the design of an IFV, including configurational variations, selection of candidate working fluids, one‐dimensional steady‐state thermal model, computational fluid dynamics (CFD) model for thermal dynamic analysis, and cold energy recovery have been reviewed. Further updates to the current one‐dimensional thermal model are needed. A three‐dimensional unsteady CFD model should be established for the instantaneous flow and heat transfer analysis. Integrating the LNG regasification and cold energy recovery will bring more complexity in process design, optimization, and operation.

show abstract

Thermodynamic analysis of a novel power plant with LNG (liquefied natural gas) cold exergy exploitation and CO2 capture

Cited by 63 publications

References 43 publications

Visual Measurements of Solid–Liquid Equilibria and Induction Times for Cyclohexane + Octadecane Mixtures at Pressures to 5 MPa

Visual Measurements of Solid–Liquid Equilibria and Induction Times for Cyclohexane + Octadecane Mixtures at Pressures to 5 MPa

Tapping Freshwaters for Methane and Energy

Design of an Intermediate Fluid Vaporizer for Liquefied Natural Gas

Contact Info

Product

Resources

About