Process to produce pipeline-transportable crude oil from...

C - Chemistry – Metallurgy – 10 – G

Patent

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Details

C10G 9/00 (2006.01) C10G 51/02 (2006.01)

Patent

CA 2530148

The present invention relates to a process for the production of a pipeline- transportable crude oil from a bitumen feed, comprising; (1) dividing the bitumen feed into two fractions, the first fraction comprising between 20 and 80 wt% of the feed, the second fraction comprising between 80 and 20 wt% of the total feed, (the two fraction together forming 100 wt % of the feed), (2) distillation of the first fraction obtained in step (1) (preferably under vacuum) into a light fraction boiling below 380 ~C (preferably the 450 ~C fraction, more preferably the 510 ~C fraction) and a residual fraction, (3) thermal cracking (of at least part of, preferably all of,) the residual fraction obtained in the distillation process described in step (2), (4) distillation of the product obtained in step (3) into one or more light fractions (boiling below 350 ~C), optionally one or more intermediate fractions (boiling between 350 and 510 ~C) and a heavy fraction (boiling above at least 350 ~C)r (5) combining the second fraction obtained in step (1), the light fraction obtained in step (2) and the light fraction(s) obtained in step (4) to obtain a pipelinetransportable crude oil, and (6) using heavy fraction obtained in step (4) for the generation of power and/or heat.

L'invention concerne un procédé permettant de produire du pétrole brut transportable par pipeline à partir d'une matière bitumineuse naturelle, qui consiste (1) à diviser la matière bitumineuse naturelle en deux fractions, la première fraction comprenant entre 20 et 80 % en poids de matière, la seconde entre 80 et 20 % en poids de la matière totale (les deux fractions formant ensemble 100 % de ladite matière), (2) à distiller la première fraction obtenue en (1) (de préférence sous vide) en une fraction légère bouillant au-dessous de 380 ·C (de préférence la fraction de 450 ·C, voire de 510·C) et une fraction résiduelle, (3) à procéder au craquage thermique la fraction résiduelle (au moins partiellement, voire en totalité) obtenue en (2) lors du processus de distillation, (4) à distiller le produit obtenu en (3) en une ou plusieurs fractions légères (bouillant au-dessous de 350·C), éventuellement une ou plusieurs fractions intermédiaires (bouillant entre 350 et 510·C) et une fraction lourde (bouillant au-dessus d'au moins 350·C), (5) à combiner la seconde fraction obtenue en (1), la fraction légère obtenue en (2) et les fractions légères obtenues en (4) de façon à obtenir du pétrole brut transportable par pipeline, et à produire, à l'aide de la fraction lourde obtenue en (4), de l'énergie et/ou de la chaleur.

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