A proposal of low CO2 emission power generation system utilizing oceanic methane hydrate

Shigenao Maruyama, Masazumi Chisaki, Atsuki Komiya, Ryo Shirakashi

Research output: Contribution to conferencePaperpeer-review

2 Citations (Scopus)

Abstract

A novel power generation system with low carbon dioxide (CO2) emission was proposed. Thermal stimulation method was selected to dissociate the oceanic methane hydrate. By means of process simulation, the feasibility of proposed system was confirmed. A power generation system with approximately 40% thermal efficiency and above 90% CO2 recovery rate was achieved. In this system, CO2 due to the combustion is recovered by compressed seawater. CO2 dissolved seawater is heated by the exhausted gas and injected to the hydrate layer to dissociate the methane hydrate. CO2 is sequestrated simultaneously. Moreover, in order to quantify the heat loss during the injection of hot seawater to the hydrate layer, numerical simulation of the internal pipe flow was conducted. It was shown that the seawater temperature at the pipe outlet can be evaluated by the pipe diameter, thermal conductivity and the thickness of the insulation material.

Original languageEnglish
Publication statusPublished - 2009 Jan 1
Event9th International Conference on Power Engineering, ICOPE 2009 - Kobe, Japan
Duration: 2009 Nov 162009 Nov 20

Other

Other9th International Conference on Power Engineering, ICOPE 2009
CountryJapan
CityKobe
Period09/11/1609/11/20

Keywords

  • CO recovery
  • Methane hydrate
  • Physical absorption method
  • Power generation system
  • Thermal stimulation method

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Fuel Technology

Fingerprint Dive into the research topics of 'A proposal of low CO2 emission power generation system utilizing oceanic methane hydrate'. Together they form a unique fingerprint.

Cite this