Process for the production of pipelineable crude oil from...

C - Chemistry – Metallurgy – 10 – G

Patent

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C10G 9/00 (2006.01)

Patent

CA 2195165

A process for the production of stable, pipelineable crude oil from heavy oils and/or bitumen that comprises feeding the heavy oils or bitumens either directly or after preheating into a fired heater. The feed is heated and kept at an elevated temperature long enough to break the viscosity. Alternatively, the feed is heated to a lesser temperature and transferred to a vessel for soaking over a longer time to break its viscosity. The heavy oil or bitumen feed may be prefractioned to removed lighter fractions prior to transferring the heavier fraction to the heater or heater/soaker which outputs visbroken products with lowered viscosity that are pipelineable crude oil. For predistillation, the lighter fractions are recombined with the visbroken product for pipeline transport.

Procédé de production, à partir de pétrole lourd et(ou) de bitume, d'huile brute stable transportable par pipeline. Comprend le chargement du pétrole lourd ou du bitume dans un appareil de chauffage à combustible, soit directement, soit après préchauffage. Les matières chargées sont chauffées à température élevée assez longtemps pour en réduire la viscosité; ou bien chauffées à température plus basse puis transvidées pour un long séchage destiné à en abaisser la viscosité. L'huile lourde ou le bitume chargé peut être préfractionné pour enlever les fractions plus légères avant de transvider la fraction plus lourde dans l'appareil à chauffer ou à chauffer/sécher dont sortiront les produits viscoréduits constituant l'huile brute transportable par pipeline. ~ des fins de prédistillation, les fractions plus légères sont réassociées au produit viscoréduit pour transport par pipeline.

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