Ifp Energies Nouvelles

Yves Scharff

Vincent Coupard

Thierry Chapus

Frederic Bazer-Bachi

Laurent Bournay

Pierre-Yves Martin

Elodie Tellier

Stéphane Fedou

Sebastien Boucher

Yann Lepine

Octavio Carvalho

Frederic Bazer-bachi

Stephane Fedou

Sébastien Boucher

A process for the hydrotreatment of a feed obtained from renewable sources in which the total stream of feed F is divided into a number of different part-streams of feed F1 to Fn equal to the number of catalytic zones n, where n is 1 to 10. The mass flow rate of hydrogen sent to the first catalytic zone represents more than 80% by weight of the total mass flow rate of hydrogen used. The effluent from the reactor outlet undergoes at least one separation step. A portion of the liquid fraction is recycled to the catalytic zones in a manner such that the local recycle ratio for each of the beds is 2 or less, and the local dilution ratio over each of the beds is less than 4.

Process for the hydrotreatment of renewable materials, with an optimized gas recycle

The present invention describes a process for the production of alkyl esters of fatty acids and glycerine employing, in a reaction section, at least one transesterification reaction between an animal or vegetable oil and an aliphatic mono-alcohol, and using a heterogeneous solid catalyst, in which the energy balance is improved by thermal integration of the energy released during the mono-alcohol condensation step.

Process for the production of alkyl esters from animal or vegetable oil and an aliphatic mono-alcohol with thermal integration

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Montesson, France

Yves Scharff