LNG fired zero emission combined power generation plant

Sanjayan Velautham, Takehiro Ito, Yasuyuki Takata, Hideo Mori

Research output: Contribution to journalArticle

Abstract

The potential of a zero emission combined power generation plant fired by liquefied natural gas (LNG) has been investigated. The thermodynamic cycle proposed is basically an integration of a combined cycle power generation plant, an air separation unit (ASU), and a carbon dioxide (CO2) recovery unit, while the by-products are liquefied CO2, gaseous nitrogen (N2) and water (H2O). LNG is burnt in oxygen (O2)-CO2 mixture and recirculated in a gas turbine-steam turbine combined power generation plant. Such recirculation leads to flue gas with very high CO2 concentration. O2 for combustion is obtained from ASU. LNG is used in both cooling the air for the ASU and to condense a part of the flue gas. By integrating the ASU and the combined power generation plant, the overall thermal efficiency calculated is around 47% (LHV).

Original languageEnglish
Pages (from-to)125-136
Number of pages12
JournalMemoirs of the Graduate School of Engineering, Kyushu University
Volume59
Issue number2
Publication statusPublished - Jun 1999
Externally publishedYes

Fingerprint

liquefied natural gas
Liquefied natural gas
power generation
Power generation
air
Air
Flue gases
turbine
Steam turbines
Carbon Dioxide
Byproducts
Gas turbines
Carbon dioxide
Nitrogen
combustion
carbon dioxide
thermodynamics
Thermodynamics
Oxygen
Cooling

All Science Journal Classification (ASJC) codes

  • Management of Technology and Innovation
  • Process Chemistry and Technology
  • Earth and Planetary Sciences(all)
  • Atmospheric Science
  • Energy(all)

Cite this

LNG fired zero emission combined power generation plant. / Velautham, Sanjayan; Ito, Takehiro; Takata, Yasuyuki; Mori, Hideo.

In: Memoirs of the Graduate School of Engineering, Kyushu University, Vol. 59, No. 2, 06.1999, p. 125-136.

Research output: Contribution to journalArticle

Velautham, Sanjayan ; Ito, Takehiro ; Takata, Yasuyuki ; Mori, Hideo. / LNG fired zero emission combined power generation plant. In: Memoirs of the Graduate School of Engineering, Kyushu University. 1999 ; Vol. 59, No. 2. pp. 125-136.
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