An Economic Analysis of Ways of Purifying Natural Gas with a High CO<sub>2</sub>Content

Gerasimov, V. E.; Peredel'skii, V. A.; Lyapin, A. I.; Darbinyan, R. V.; Dovbish, A. L.

doi:10.1023/b:cape.0000039680.08556.5c

Cited by 2 publications

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“…This process has the additional advantage of separating the water and carbon dioxide . Approximately 25% of the natural gas produced in the world is transported as LNG, since the volume is reduced around 600 times.…”

Section: Introductionmentioning

confidence: 99%

Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

2006

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A vacuum pressure swing adsorption (VSA-PSA) process is studied for the removal of carbon dioxide in a contaminated stream of natural gas to achieve fuel grade methane. The adsorbent used was zeolite 13X (CECA) where CO2 is strongly adsorbed. A Skarstrom-type cycle comprising pressurization with product, feed, countercurrent blowdown, and countercurrent purge was employed. A mixture having 60% CH4/20% CO2/20% N2 was used, and two different temperatures were evaluated in a single-column VSA-PSA unit. Under the conditions tested, CO2 was removed to levels lower than 2% as required by fuel grade methane with methane recovery higher than 80% without recycle. This separation process also helps in the CH4−N2 separation. A bidisperse (macropore−micropore) model also including distributed energy balances in gas, solid, and column wall considering heat and mass transfer resistance at the gas−solid interface was used to simulate the VSA-PSA behavior and compare with experiments. Also, some scale-up considerations are considered and evaluated by simulations of the process.

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Section: Introductionmentioning

confidence: 99%

Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

2006

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An Analysis of CO2 Storage Prospects in Deep Saline Reservoirs

Huo

Jalali

2010

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We analyze the prospects of CO2 storage in deep saline reservoirs. Our analysis indicates that the outlook for this method of CO2 storage is favorable. Although this is a subjective assessment, we attempt to clarify the factual trends underpinning this perspective. This includes the robust trend in growth of natural gas demand, severity of the sour gas problem, precedence in governmental action in the form of fiscal deterrents to CO2 emissions and stimulants for geological storage, and the large footprint of deep saline reservoirs.It is therefore not surprising that the few industrial-scale projects implemented for direct storage of CO2 in geological formations all adhere to the same blueprint -sour gas fields in relative proximity of deep saline or bottom-water reservoirs, developed in countries where government is adopting a proactive approach to curbing CO2 emissions, by levying tax and by assuming the longterm liability of these projects.

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An Economic Analysis of Ways of Purifying Natural Gas with a High CO₂Content

Cited by 2 publications

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Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

An Analysis of CO2 Storage Prospects in Deep Saline Reservoirs

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An Economic Analysis of Ways of Purifying Natural Gas with a High CO2Content

Cited by 2 publications

References 0 publications

Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

Removal of Carbon Dioxide from Natural Gas by Vacuum Pressure Swing Adsorption

An Analysis of CO2 Storage Prospects in Deep Saline Reservoirs

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An Economic Analysis of Ways of Purifying Natural Gas with a High CO₂Content