A process for the manufacture of carbon disulphide

C - Chemistry – Metallurgy – 01 – B

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C01B 31/26 (2006.01) E21B 43/16 (2006.01)

Patent

CA 2652002

The invention provides a process for the manufacture of carbon disulphide comprising supplying a molecular oxygen-containing gas and a feedstock comprising a hydrocarbonaceous compound to a reaction zone containing a liquid elemental sulphur phase and reacting, in the liquid sulphur phase, at a temperature in the range of from 300 to 750 °C, the hydrocarbonaceous compound with elemental sulphur to form carbon disulphide and hydrogen sulphide and oxidising at least part of the hydrogen sulphide formed to elemental sulphur and water. The invention further provides the use of a liquid stream comprising carbon disulphide, hydrogen sulphide and carbonyl sulphide obtainable such process for enhanced oil recovery.

L'invention concerne un procédé destiné à la fabrication de disulfure de carbone qui consiste à acheminer un gaz contenant de l'oxygène moléculaire et une charge contenant un composé hydrocarboné dans une zone de réaction qui comprend une phase de soufre élémentaire liquide, à faire réagir dans cette phase, à une température comprise entre 300 et 750 °C, le composé hydrocarboné avec du soufre élémentaire pour former du disulfure de carbone et du sulfure d'hydrogène et, enfin, à oxyder en soufre élémentaire et en eau au moins une partie du sulfure d'hydrogène formé. Cette invention a aussi pour objet l'utilisation d'un flux liquide contenant du disulfure de carbone, du sulfure d'hydrogène et du sulfure de carbonyle pouvant être obtenus par ce procédé amélioré de récupération de pétrole.

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