H 2 PSA purifier for CO removal from hydrogen mixtures

Young Woo You, Dong Geun Lee, Ki Yong Yoon, Dong Kyu Moon, Seong Man Kim, Chang Ha Lee

Research output: Contribution to journalArticle

39 Citations (Scopus)

Abstract

A two-bed PSA purifier was developed to produce high purity hydrogen for fuel cell applications. Two types of hydrogen-rich mixtures produced from coal off-gas were used. Feed 1 consisted of a 99% H 2 mixture (H 2:CO:CO 2:N 2 = 99:0.1:0.05:0.85 vol.%) containing 0.1% CO while Feed 2 was a 95% H 2 mixture (H 2:CO:CO 2:CH 4:N 2 = 95:0.3:0.1:0.05:4.55 vol.%) containing 0.3% CO. An increase in the P/F ratio and adsorption pressure led to an almost linear decrease in H 2 recovery with increasing purity. However, a sharp drop in CO concentration occurred at a specific operating range in both feeds. The feed was purified to 1.1 ppm CO with 99.99+% H 2 purity and 80.0% recovery under 6.5 bar and 0.15 P/F ratio while CO in Feed 2 could be reduced to 6.7 ppm with 99.96% H 2 purity and 78.4% recovery. The PVSA process, which combined vacuum and purge steps, could improve recovery by about 10% compared to the PSA process.

Original languageEnglish
Pages (from-to)18175-18186
Number of pages12
JournalInternational Journal of Hydrogen Energy
Volume37
Issue number23
DOIs
Publication statusPublished - 2012 Dec 1

Fingerprint

purification
purity
recovery
Recovery
Hydrogen
hydrogen
coal
fuel cells
beds
Fuel cells
Coal
Vacuum
methylidyne
Adsorption
vacuum
adsorption
Gases
gases

All Science Journal Classification (ASJC) codes

  • Renewable Energy, Sustainability and the Environment
  • Fuel Technology
  • Condensed Matter Physics
  • Energy Engineering and Power Technology

Cite this

You, Young Woo ; Lee, Dong Geun ; Yoon, Ki Yong ; Moon, Dong Kyu ; Kim, Seong Man ; Lee, Chang Ha. / H 2 PSA purifier for CO removal from hydrogen mixtures. In: International Journal of Hydrogen Energy. 2012 ; Vol. 37, No. 23. pp. 18175-18186.
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abstract = "A two-bed PSA purifier was developed to produce high purity hydrogen for fuel cell applications. Two types of hydrogen-rich mixtures produced from coal off-gas were used. Feed 1 consisted of a 99{\%} H 2 mixture (H 2:CO:CO 2:N 2 = 99:0.1:0.05:0.85 vol.{\%}) containing 0.1{\%} CO while Feed 2 was a 95{\%} H 2 mixture (H 2:CO:CO 2:CH 4:N 2 = 95:0.3:0.1:0.05:4.55 vol.{\%}) containing 0.3{\%} CO. An increase in the P/F ratio and adsorption pressure led to an almost linear decrease in H 2 recovery with increasing purity. However, a sharp drop in CO concentration occurred at a specific operating range in both feeds. The feed was purified to 1.1 ppm CO with 99.99+{\%} H 2 purity and 80.0{\%} recovery under 6.5 bar and 0.15 P/F ratio while CO in Feed 2 could be reduced to 6.7 ppm with 99.96{\%} H 2 purity and 78.4{\%} recovery. The PVSA process, which combined vacuum and purge steps, could improve recovery by about 10{\%} compared to the PSA process.",
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H 2 PSA purifier for CO removal from hydrogen mixtures. / You, Young Woo; Lee, Dong Geun; Yoon, Ki Yong; Moon, Dong Kyu; Kim, Seong Man; Lee, Chang Ha.

In: International Journal of Hydrogen Energy, Vol. 37, No. 23, 01.12.2012, p. 18175-18186.

Research output: Contribution to journalArticle

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