Development and analysis of a natural gas reliquefaction plant for small gas carriers

Nekså, Petter; Brendeng, Einar; Drescher, Michael; Norberg, B.

doi:10.1016/j.jngse.2010.05.001

Cited by 36 publications

(9 citation statements)

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“…[18] TheU S does not currently have federal LNG quality requirements, but revaporizedL NG must meet NG pipeline standards of 2-4 %C O 2 .I ndustrial natural-gas specifications require 50 ppm of CO 2 or less for streams that form LNG.T he reason for CO 2 removald own to 50 ppm stems from concerns aboutt he degradation of operability caused by potential CO 2 freezing during the liquefaction of natural gas.T he solubility of CO 2 in the final LNG product under normal conditions is higher than 50 ppm. [19] Thus,i ti si mportantt o considert he application of the cryogenic carbon capture (CCC) of LNGt oa chieve 50 ppm CO 2 and the potential for CO 2 -tolerant liquefaction. This makest he removal of CO 2 from natural gas of crucial importance.…”

Section: Hybrid Solution( Mixed Physical and Chemical Solvent)mentioning

confidence: 99%

“…The reason for CO 2 removal down to 50 ppm stems from concerns about the degradation of operability caused by potential CO 2 freezing during the liquefaction of natural gas. The solubility of CO 2 in the final LNG product under normal conditions is higher than 50 ppm . Thus, it is important to consider the application of the cryogenic carbon capture (CCC) of LNG to achieve 50 ppm CO 2 and the potential for CO 2 ‐tolerant liquefaction.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

et al. 2017

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In this investigation, a natural‐gas (NG) treatment system for NG sources with high CO2 content is simulated experimentally and theoretically using Aspen Plus. The concept uses patented heat exchangers and a process design developed as part of the cryogenic carbon capture(CCC) process to remove enough CO2 to enable the treated gas to be handled without the modification of traditional NG equipment. Simultaneously, the process removes liquefied natural gas (LNG) very efficiently. This process provides a simpler alternative to the solvent‐based CO2 removal, absorbent drying, and cryogenic NG liquid extraction systems found in traditional NG processing. The data from an experimental bench‐scale apparatus verify the results of the simulations as a function of NG composition and pressure. Costing parameters, exergy loss, and heat‐exchanger efficiency are also discussed. The results confirm low exergy losses for bench‐scale apparatus. The system uses heat exchangers with efficiencies of more than 90 %. High pressure and low methane content in the NG result in high CO2 capture.

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Section: Hybrid Solution( Mixed Physical and Chemical Solvent)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

et al. 2017

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“…The second group forces the process gas to develop a reverse thermodynamic cycle in one or several steps. In general, the Mixed Refrigerant technology is applied more and more widely because of its high efficiency [6].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigation of mobile small-scale liquefier for 10000 NM3/D of coal bed methane gas

Sun¹,

Wu²,

Gong³

et al. 2012

AIP Conference Proceedings

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There is a growing recognition that unconventional sources of gas, such as shale gas, coal bed methane (CBM) and deep tight gas will contribute a significant component of future gas supplies as technologies evolve. In recent years, the interest in such source of gas utilization technologies based on small-scale LNG production has been rising steeply. In this paper, a mobile liquefier prototype for 10000 Nm 3 /d of CBM has been designed, constructed and tested. It has two cascade refrigeration systems. The high-temperature refrigeration system will pre-cool the resource gas to 5 o C, and the low-temperature refrigeration system will continue to cool the resource gas to the liquefied point with a Mixed Refrigerant Cycle (MRC). The kernel compressor is a conventional oil-lubricated air-conditioning compressor with the discharge pressure of 2.0 MPa. The main heat exchanger is plate-fin heat exchanger with four passages. A series of experiments have been done on the prototype liquefier at different resource gas pressures and environmental temperatures. It is less than one hour from the start of the equipment to the existence of LNG. The maximum production of LNG is about 20 m 3 /d when a stream of about 12500 Nm 3 /d of pure CBM at a process pressure of 1.3 MPa is liquefied. The energy consumption of liquefying 1 Nm 3 methane is 0.612 kWh.

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“…As the environmental pollution becomes an international issue, the demand for the engines that utilize gas which is clean energy is greatly increasing. Since gas engines have good economic feasibility and efficiency beside the environment‐protecting advantage, engines for large‐scale ships are replaced by gas engines . The conventional Diesel engines utilize the bunker‐C oil as the fuel, but the dual fuel (DF) engine, which is a more advanced engine than the Diesel engine, utilizes both the bunker‐C oil and the liquefied natural gas (LNG) simultaneously.…”

Section: Introductionmentioning

confidence: 99%

“…Since gas engines have good economic feasibility and efficiency beside the environment-protecting advantage, engines for large-scale ships are replaced by gas engines. [1,2] The conventional Diesel engines utilize the bunker-C oil as the fuel, but the dual fuel (DF) engine, which is a more advanced engine than the Diesel engine, utilizes both the bunker-C oil and the liquefied natural gas (LNG) simultaneously. The conventional Diesel engines utilize the bunker-C oil as the fuel, but the DF engine, which is a more advanced engine than the Diesel engine, utilizes both the bunker-C oil and the LNG simultaneously.…”

Section: Introductionmentioning

confidence: 99%

Corrosion behavior in 10% H₂C₂O₂·H₂O solution of austenite stainless steel for double wall gas pipe of duel fuel engine for liquefied natural gas ship

Kim

Han

Park

2012

Surface & Interface Analysis

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In this study, to evaluate the corrosion resistance in the case of the identical welding by the gas metal arc welding with the STS 304 and STS 316L alloys, the double wall gas pipe materials, using the ER 308L electrode, the corrosion characteristics of the base metal and the welding zone were compared and evaluated by various electrochemical experiments in 10% oxalic acid solution, and the corrosion behavior was analyzed by observing the process of the corrosive damage. The STS 304 identical welding zone was a small cathode‐large anode cell where the base metal played the role of an anode and protected the welding zone. However, corrosion took place preferentially in the STS 316L welding zone because the welding zone played the role of an anode. Copyright © 2012 John Wiley & Sons, Ltd.

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Development and analysis of a natural gas reliquefaction plant for small gas carriers

Cited by 36 publications

References 0 publications

Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

Experimental investigation of mobile small-scale liquefier for 10000 NM3/D of coal bed methane gas

Corrosion behavior in 10% H₂C₂O₂·H₂O solution of austenite stainless steel for double wall gas pipe of duel fuel engine for liquefied natural gas ship

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Development and analysis of a natural gas reliquefaction plant for small gas carriers

Cited by 36 publications

References 0 publications

Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

Effect of Operating Conditions on Cryogenic Carbon Dioxide Removal

Experimental investigation of mobile small-scale liquefier for 10000 NM3/D of coal bed methane gas

Corrosion behavior in 10% H2C2O2·H2O solution of austenite stainless steel for double wall gas pipe of duel fuel engine for liquefied natural gas ship

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Corrosion behavior in 10% H₂C₂O₂·H₂O solution of austenite stainless steel for double wall gas pipe of duel fuel engine for liquefied natural gas ship