Societe Nationale Elf Aquitaine

Institute Francais Du Petrole

Axens

Marek B.v.

Ifp Energies Nouvelles

Jean-Marc Bader

Florent Picard

Yann Creff

Clementina Lopez Garcia

Nicolas Couenne

François Wahl

Damien Maintenant

The present invention describes a control system for units for the production of 1-butene by the oligomerization of ethylene in the presence of a homogeneous catalyst, in the liquid phase and at the bubble point, which uses a multivariable predictive controller and provides the units with better stability.

Use of an advanced multivariable controller to control alphabutol units

This invention describes a method for determining the content of conjugated diolefins by means of the measurement of the MAV of a sample of catalytic cracking gasoline or thermal cracking gasoline, from its NIR (near-infrared) spectrum, and the application of said method for monitoring a unit for selective hydrogenation of the cracking gasolines.

Method for monitoring and regulating selective hydrogenation of olefinic gasoline fractions

Single-leaf valve for gas-fired boilers

An intermediary chamber associated to a device for feeding a pulsatory combustion chamber with fuel and comburent includes a heat tube l65 defining with the inner channel wall 125 a recirculation zone for the burnt gases issuing from the combustion chamber. The intermediary channel located between the combustion chamber for pulsatory combustion of a mixture of fuel and a combustive agent and an injection chamber includes the heat tube being directly communicated with the combustion chamber, wherein an internal wall of the intermediary channel and an outer surface of the heat tube define a recirculation zone for the recirculaton of burn gases issuing from the combustion chamber, the recirculation zone being at least partially open at an upper end thereof.

Intermediary channel for a feeding device for a pulsatory combustion

Growing community of inventors

Taluyers, France

Jean-Marc Bader