Engie

Gdf Suez

Sandra Capela

Bernard Marchand

Mathieu Ourliac

Yilmaz Kara

Stéphane Fortin

Laurent Lantoine

Naushad Manjoo

Marion Maheut

A method is provided for estimating at least one combustion characteristic of a fuel gas belonging to a family of fuel gases, where the at least one characteristic includes at least one of a Wobbe index or a higher heating value. The method includes measuring at least two flow properties of the fuel gas and measuring a dihydrogen content Xcontained in the fuel gas. The method also includes estimating the at least one characteristic using an empirical affine relationship of Here, &#x3b1;, &#x3b2;, and &#x3b3; are coefficients predetermined for the family of fuel gases, and Y is a variable representative of physical properties of the fuel gas prepared from the measurements of the at least two flow properties of the fuel gas.

Method for estimating a combustion characteristic of a gas that may contain dihydrogen

A device includes a gasifier to produce a gaseous compound from a biomass. The gasifier includes inlets for the biomass and for an oxidizing agent and an outlet for the gaseous compound including carbon monoxide. A first methanation unit to methanate the carbon monoxide to produce a substitute natural gas exiting the gasifier. The first methanation unit includes at least one inlet for water and an inlet for the gaseous compound coming from the gasifier. A second methanation unit to methanate the carbon dioxide to produce the substitute natural gas. The second methanation unit includes at least one inlet for water and one inlet for the carbon dioxide from the first methanation unit. A dihydrogen producing unit to produce dihydrogen from water and electric current. The dihydrogen producing unit includes an electrical power supply, an inlet for water and an outlet for dihydrogen supplying the second methanation unit.

Device and method for producing substitute natural gas and network comprising same

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Pantin, France

Sandra Capela