CO2 Conditioning and Transportation

Heggum, Geir; Weydahl, Torleif; Mo, Roald; Mølnvik, Mona J.; Austegaard, Anders

doi:10.1016/b978-008044570-0/50142-2

Cited by 16 publications

(6 citation statements)

References 5 publications

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“…Compression process includes condensation of water before CO 2 conditioning and generally dehydration in the CO 2 compression intercooling is also required [3][4][5][6][7][8][9]. A recent research also includes the removal of other components in CO 2 rich-stream [2].…”

mentioning

confidence: 99%

Optimization of intercooling compression in CO2 capture systems

Romeo

Bolea

Lara

et al. 2009

Applied Thermal Engineering

105

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mentioning

confidence: 99%

Optimization of intercooling compression in CO2 capture systems

Romeo

Bolea

Lara

et al. 2009

Applied Thermal Engineering

105

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“…A number of previous studies have shown that the SRK equation predicts the phase behavior of CO 2 and CO 2 mixtures with the greatest precision at high pressure. , However, the SRK equation with improper water–CO 2 binary interaction parameters often fails to predict their solubility . In this study, the SRK equation was modified with a binary interaction parameter ( k ij ) of 0.193 in the van der Waals mixing rule, as reported by Heggum et al…”

Section: Design Basismentioning

confidence: 92%

Carbon Dioxide Liquefaction Process for Ship Transportation

Lee

Yang

Jeong

et al. 2012

Ind. Eng. Chem. Res.

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CO 2 liquefaction is an essential process for long-distance ship transportation. The conventional CO 2 liquefaction process employs either an external coolant or liquid expansion followed by multistage compression to obtain liquefied CO 2 at low pressure. However, these processes consume considerable amounts of energy, which presents an obstacle to commercialization. Thus, the CO 2 liquefaction process needs to be carefully researched and designed to reduce the operating energy. In this study, two alternative CO 2 liquefaction processes are proposed and evaluated. These alternative processes use multistage expansion and multistream heat exchangers to lower the input stream temperature for the compressor. In addition, the system is operated in a more efficient manner by operating the process with an optimized compression ratio. Evaluation of the economic feasibility was performed in this study for a complete assessment of the alternative processes. As a result, about 98.1 kWh/t of CO 2 was consumed for alternative process 2, which is only 91.8% of the total operating energy of existing CO 2 liquefaction processes, and the CO 2 liquefaction costs for alternative process 2 were reduced by 5.5%.

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“…Figure shows the process flow diagram for the liquefaction model. Soave–Redlich–Kwong (SRK) was used as the property method with a modified binary interaction parameter ( k ij ) of 0.193 in the van der Waals mixing rule . Captured CO 2 is fed to a seawater heat exchanger (SEAWATER HE-1) to reduce the temperature before entering the multistream process heat exchanger (PROCESS HE-1).…”

Section: Process Descriptionmentioning

confidence: 99%

Parametric Optimization for Power De-Rate Reduction in the Integrated Coal-Fired Power Plant with Carbon Capture and Storage

Lee

Jung

et al. 2015

Ind. Eng. Chem. Res.

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Carbon capture and storage (CCS) has attracted worldwide attention as a near-term technology to decelerate global warming. Postcombustion CO 2 capture utilizes existing coal-fired power plants, and aqueous monoethanolamine (MEA) scrubbing is the most common capture technology. However, the heat and energy requirements of solvent regeneration and CO 2 liquefaction cause a 30% decrease in net power output. This power de-rate is a major obstacle to implementing CCS. In this study, simulation-based parametric optimization was performed to minimize the power de-rate. Postcombustion CO 2 capture with aqueous MEA scrubbing (85%, 90%, and 95% removals) and CO 2 liquefaction integrated with a 550 MWe supercritical coal-fired power plant was simulated. The liquid to gas ratio and stripper operating pressure of the CO 2 capture process were the manipulated variables with steam extracted from the intermediate pressure−low pressure crossover pipe and the first low pressure turbine as possible heat sources. The power de-rate was reduced to 17.7% when operating at optimum conditions.

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CO2 Conditioning and Transportation

Cited by 16 publications

References 5 publications

Optimization of intercooling compression in CO2 capture systems

Optimization of intercooling compression in CO2 capture systems

Carbon Dioxide Liquefaction Process for Ship Transportation

Parametric Optimization for Power De-Rate Reduction in the Integrated Coal-Fired Power Plant with Carbon Capture and Storage

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