Centre National De La Recherche Scientifique

Institut National Polytechnique De Toulouse

Lafarge

Ifp Energies Nouvelles

Yannco

Mehrdji Hemati

Antoine Fecant

Lars Fischer

Michel Gimenez

Gilles Flamant

Loïc Rouleau

Samy Ould-Chikh

Yann Mercier

A process for decarbonation of particles of raw meal, to be burnt in a clinkering kiln at a cement plant, the process includes: a) decarbonation of particles of raw meal, in a fluidized bed heat exchanger, the particles being suspended in a rising carrier gas including carbon dioxide, the fluidized bed heat exchanger having a solid heat carrier circulating counter-current relative to the carrier gas, to provide an effluent gas including carbon dioxide and decarbonated raw meal; b) separating the effluent gas and the decarbonated raw meal c) separating the effluent gas into a first and second part; cooling the first part of the effluent gas and recycling to provide carrier gas, d) isolating the second part of effluent gas e) recovering and re-heating the heat carrier and recirculating to step (a).

Decarbonation process

The invention relates to a device for collecting solar energy (), characterized in that it includes at least one solar receiver () including at least one suspension of solid particles fluidized by a gas, each suspension circulating between an inlet and an outlet of the receiver (), wherein the volume of particles is between 40% and 55% of the volume of the suspension, and the average size of the particles is between 20 and 150 &#x3bc;m.

Device for collecting solar energy

Growing community of inventors

Pins-Justaret, France

Mehrdji Hemati