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High Quality Syncrude from Athabasca Bitumin Disclosure Number: IPCOM000219897D
Publication Date: 2012-Jul-17

Publishing Venue

The Prior Art Database

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K. Logwinuk, Director Licensed Technology and

H. D. Sloan, Process Manager

The M. W. Kellogg Company Three Greenway Plaza Houston, Texas 77046

Dr. A.

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Bitumens extracted from oil sands, as well as many of the very heavy oils, do not lend themselves to easy processing within conventional refineries. The relatively high Conradson Carbon content, as well as high levels of vanadiu~ and nickel, present considerable difficulties for catalytic hydroprocessing routes.

Processing of bitumens and heavy oils in delayed or fluid cokers produces unsaturated products and converts substantial quantities of the feed to unwanted by-product coke.

The ART* Process, which was initially developed by Engelhard Corporation for upgrading of petrole~ residual feedstocks and poor quality crudes, and which is available for license through

M. W. Kellogg, is also applicable for upgrading of bit unens and Canada's very heavy oils. Reconstitution of the ART products produces a substantially improved syncrude which can be proces- sed in most conventional refineries. However, depending upon

ART is a service mark of ~gelhard Corporation for professional services relating to selective vaporization processes for r~oving contaminants from petroleum feedstocks.


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the quality of the feed tions, the syncr ude
sul fur, nitrogen and
ART products prior to
of a high quality syncrude market cr udes.

   to the ART unit and market specifica- may still contain undesired levels of

carbon residue. Hydrotreatment of the reconstitution results in the production

equal to or superior to most world


A Bitumen Upgrader facility, proposed for upgrading Athabasca Bit t men to high quality syncrudes, is depicted by a block flow diagram, Figure ]. In essence, it consists of the following steps:

Art processing of Athabasca Bitumen.

Hydrotreatment of ART liquid products at high severity conditions.

Recovery of heat from ART flue gases as high pressure" steam, which is used within the battery limits, and export of surplus steam.

Citrate cleanup of cooled ART flue gases which also produces sulfur.


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Recovery of C3's and C4's in a gas plant, plus amine scrubbing to separate H2S from the product gases.

Generation of hydrogen from the H2S free product gases and natural gas.

Reconstitution of hydrotreated liquid products and recovered C3+C4 into a high quality synthetic crude.

Although the ARTCAT~ Reactivation Unit Upgrader battery limits, it is shown in the tie-in into the complex.

 is outside the Bitumen Figure I to illustrate


The ART Process is a selective vaporization and fluidized demetallization and decarbonization process. The equi~nent utilized is similar to that used in fluid catalytic cracking, which has been proven over a period of forty years. However, the operating conditions, contact time and type of fluidize...