Centre National De La Recherche Scientifique

Lafarge

Institut National Polytechnique De Toulouse

Institut National Polytechnique De Toulouse (inpt)

Ifp Energies Nouvelles

Institute National Polytechnique De Toulouse

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