The production of carbon black, components of hydrocarbon...

C - Chemistry – Metallurgy – 10 – G

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C10G 1/10 (2006.01) C10B 53/07 (2006.01)

Patent

CA 2673530

The inventive method consists in carrying out a rubber crumb thermolysis in a fluidized layer in the vertical flow of a supercritical hydrocarbon alkylaromatics-containing gas. The rubber crumb thermolysis is carried out in a reactor at a mass ratio between a solvent and residues less than 0.1. The solvent is also used in the form of a fluidizing agent, a heat carrier and a entrainer for removing reaction products from the reactor, thereby enabling the solvent to flow in such a way that all the products produced by the rubber crumb thermolysis are totally removed from the reactor in the common stream with the solvent.

L'invention concerne un procédé qui est mis en oeuvre par la thermolyse des miettes de caoutchouc dans une couche pseudo-liquéfiée dans un flux vertical d'un gaz d'hydrocarbures contenant des alkyles aromatiques. La thermolyse des miettes de caoutchouc est effectuée dans le réacteur avec un rapport massique du solvant et des déchets de 1,0 au maximum. Le solvant sert en même temps d'agent de liquéfaction, de caloporteur et de vecteur utilisé pour sortir du réacteur des produits de réaction, ce qui assure la circulation du solvant avec l'évacuation complète de tous les produits, obtenus pendant la thermolyse des miettes de caoutchouc, du réacteur dans un flux commun avec le solvant.

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