A process for the manufacture of synthesis gas by partial...

C - Chemistry – Metallurgy – 01 – B

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C01B 3/36 (2006.01) C10J 3/46 (2006.01)

Patent

CA 2190514

A process for the manufacture of synthesis gas by reacting oxygen-containing gas (oxidizer), moderator gas and a liquid, hydrocarbon- containing fuel in a reaction zone of a substantially non-catalytic gas generator comprising the steps of simultaneously injecting the said fuel and said oxidizer into the reaction zone through a multi-orifice (co-annular) burner comprising an arrangement of n separate passages or channels coaxial with the longitudinal axis of the said burner wherein n is 3 or more. The fuel is passed through one or more of the passages advantageously at a velocity or velocities between 2 and 40 m/s, whereby at least 2 passages remain, the oxygen-containing gas is passed through one or more of the remaining passages advantageously at a velocity or velocities between 20 and 140 m/s, whereby at least 1 passage remains, the moderator is passed through one or more of the remaining passages advantageously at a velocity or velocities between 5 and 140 m/s, in such a way that any two passages through which the fuel respectively the oxygen-containing gas are passed are always separated by at least one passage through which the moderator is passed.

Ce procédé permet de fabriquer un gaz de synthèse en faisant réagir, dans une zone de réaction d'un générateur de gaz essentiellement non catalytique, un gaz contenant de l'oxygène (oxydant), un gaz modérateur et un combustible liquide contenant des hydrocarbures. Ce procédé comprend les étapes suivantes: injecter simultanément ledit combustible et ledit oxydant dans la zone de réaction à travers un brûleur à plusieurs orifices (coannulaire) comprenant un agencement de n passages ou canaux séparés, disposé coaxialement par rapport à l'axe longitudinal dudit brûleur, n étant égal ou supérieur à 3. Dans ce procédé, on fait passer ledit combustible à travers un ou plusieurs desdits passages, avantageusement à une vitesse ou à des vitesses comprises entre 2 et 40 m/s, jusqu'à conserver au moins deux de passages, le gaz contenant l'oxygène est amené à passer à travers un ou plusieurs des passages restants, avantageusement à une vitesse ou à des vitesses comprises entre 20 et 140 m/s, jusqu'à conserver au moins un passage, le gaz modérateur est amené à passer à travers un ou plusieurs des passages restants, avantageusement à une vitesse ou à des vitesses comprises entre 5 et 140 m/s, de façon à ce que les deux passages de n'importe quelle paire de passages, à travers lesquels passent respectivement le combustible et le gaz contenant l'oxygène, soient toujours séparés par un passage à travers lequel passe le gaz modérateur.

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