Methane enrichment from high carbon dioxide content natural gas by pressure swing adsorption

Abdullah, Anas; Idris, I.; Shamsudin, Ili Khairunnisa; Othman, Mohd Roslee

doi:10.1016/j.jngse.2019.102929

Cited by 22 publications

(10 citation statements)

References 21 publications

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“…However, there was multi‐pronged effect when the equalization mode was introduced in the carbon capture experiment. This effect was related to reduced product purity due to product contamination 24 and increased product recovery which was revealed previously in methane enrichment process 4 and in situ carbon capture 17 . As a result, research has been focusing on improvement of CH 4 purity and recovery to meet the gas pipeline quality standard which has not been addressed adequately in the present literatures, specifically for CH 4 enrichment from gas fields containing extraordinarily high CO 2 .…”

Section: Introductionmentioning

confidence: 81%

“…The carbon was then dried and heated for an hour at 750°C in a nitrogen atmosphere 25 . CeCl 3 was used in the experiment because it reportedly increased the surface area substantially 26 that led to the marked increase in adsorption of CO 2 in the previous work to enrich methane from natural gas 4 and capture CO 2 from flue gas stream 25 …”

Section: Methodsmentioning

confidence: 99%

“…Pressure swing adsorption A, flow integrated design 4 ; B, operating modes in methane enrichment [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Methodsmentioning

confidence: 99%

“…There is an interest in research and development of PSA to enrich CH 4 from natural gas. In this area of research, PSA technology was chosen due to its cost effectiveness, zero unwanted by products and maturity 4 . In Otway basin Australia for instance, a PSA demonstration skid with silica‐alumina adsorbent was deployed to remove CO 2 from high CO 2 content natural gas comprising of 30% to 50% CO 2.…”

Section: Introductionmentioning

confidence: 99%

“…In a separate development using PSA with activated carbon from palm kernel shell to remove CO 2 from high CO 2 content natural gas comprising of 70% CO 2, 4 85.7% methane purity was reportedly observed with recovery of 54.2%. CO 2 was enriched simultaneously to achieve the purity of 94.7% and recovery of 90.2% using the same PSA configuration, that is, without pressure equalization.…”

Section: Introductionmentioning

confidence: 99%

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Effect of pressure equalization on methane enrichment from stranded natural gas usingPSAwith amorphous Kenaf and microporous palm kernel shell adsorbents

et al. 2020

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Summary Improvement of quality fuels has gained traction as a result of growing demand for higher quality fuels because of health concern, environmental issues and tighter emission control by regulatory bodies. Low quality, unprocessed fuels produce household air pollution on burning that can be fatal. In this work, Kenaf and palm kernel adsorbents were used in pressure swing adsorption to enrich methane from stranded natural gas containing extraordinarily high carbon dioxide content of 70 vol%. Microporous palm kernel activated carbon from this work was found effective in methane enrichment process to produce better quality fuel that met the gas pipeline quality standard. Methane with 85.0% purity and 94.2% recovery was achieved at 1 minute of adsorption time due to the methane flow‐through and effective carbon dioxide retention. Increased adsorption time of higher than 1 minute resulted in the reduction of both purity and recovery of the gases due to the delayed cross‐over of methane. Methane compression at three bars consumed 10.0 kJ/min out of 33.0 kJ/min. Methane expansion released 8.0 and 2.0 kJ/min from methane and carbon dioxide rich stream, respectively during blowdown. The total entropy change from the compression and expansion of the gas was nil, suggesting that the process induced no disorder to the surrounding. Pressure swing adsorption with equalization mode reduced the methane purity to 76% and carbon dioxide recovery to 70% but increased the methane recovery to almost 100% and carbon dioxide purity to 97% in a criss‐cross procession.

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Section: Introductionmentioning

confidence: 81%

Section: Methodsmentioning

confidence: 99%

“…Pressure swing adsorption A, flow integrated design 4 ; B, operating modes in methane enrichment [Color figure can be viewed at wileyonlinelibrary.com]…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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