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Innovative heavy crude conversion/upgrading process configuration

a technology of heavy crude oil and process configuration, which is applied in the direction of hydrotreatment process, hydrocarbon oil cracking, hydrocarbon oil treatment, etc., can solve the problems of unsatisfactory world demand for light crude oil, unsustainable world supply of light crude oil, and use of nature's resources, so as to maximize the yield of liquid sco

Inactive Publication Date: 2011-08-18
INST FR DU PETROLE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0012]An objective of the invention is to provide an innovative processing configuration for maximizing liquid SCO yield and balancing hydrogen requirements utilizing gasification of residues produced from the process.
[0014]It is a further objective of the present invention to utilize maximum size and throughput ebullated-bed reactor systems for the vacuum residue and DAO processing as well as for the SDA and gasification plants to provide maximum total heavy oil or bitumen feedrate and maximum resulting SCO production.

Problems solved by technology

It is generally accepted that world supplies of light crude oils recoverable by the conventional means of drilling wells into reservoirs and the use of nature's pressure, or by pumping to recover the oil, will be diminished to the extent that in the coming decades these supplies will no longer be capable of meeting the world demand.
The development of technology for the production of synthetic oil as an alternative to the light crude oil found in nature continues to be plagued by the large capital investments required in recovery and production facilities and a long wait for return on investment.
In addition, large expenditures are required to construct or retrofit refineries for synthetic oils recovered from heavy oils and bitumens.
Except for South Africa's Sasol process, which benefits from low cost labor used in coal mining, coal liquefaction is not yet cost competitive with synthetic oil produced from tar sands bitumen or heavy oils.

Method used

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  • Innovative heavy crude conversion/upgrading process configuration
  • Innovative heavy crude conversion/upgrading process configuration

Examples

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example 1

[0053]A flowrate of 300,000 BPSD of bitumen is processed in the example. The rate does not include the light diluent which is used to transport the crude from the field. The bitumen is fed to an atmospheric still which produces the light diluent (returned to the field), 43,400 BPSD of straight run atmospheric gas oil (SRAGO), and 256,600 BPSD of atmospheric residue. The atmospheric residue is sent to the vacuum fractionator to produce a vacuum residue stream (167,500 BPSD) along with 89,100 BPSD straight run vacuum gas oil (SRVGO) stream. The SRAGO and SRVGO are routed to traditional fixed-bed hydrotreating and hydrocracking units, respectively. These values and other flowrates are shown in Table 1.

[0054]The vacuum residue stream from the vacuum fractionator is split between an ebullated-bed hydroconversion unit and a solvent deasphalting unit. The split is determined by attaining a hydrogen-balanced plant. In this example, of the total 167,500 BPSD of straight run vacuum residue, 1...

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Abstract

The described invention discloses an innovative solvent deasphalter and hydroconversion-processing configuration for converting bitumen or heavy oils to produce a transportable synthetic crude oil (SCO). The innovative processing scheme disclosed herein maximizes the synthetic crude oil yield at a minimal investment compared to currently known methods.

Description

FIELD OF THE INVENTION[0001]The invention is an innovative hydroconversion processing configuration for converting bitumen or heavy oils and producing finished products and / or synthetic crude oil (SCO). The novel process configuration is self-sufficient for the required hydrogen and there is no heavy unconverted residue or coke product to dispose of using the disclosed process.[0002]The invention results in a high yield of specification SCO which will not contain any undesirable asphaltenes, no undesirable bottoms or coke product, and is accomplished with minimal investment and operating costs. SCO is the output from a bitumen / extra heavy oil upgrader facility used in connection with oil sand production. It is also the output from an oil shale extraction. The properties of the SCO depend to a large extent on the processes used in the upgrading. High quality SCO is typically low in sulfur, has an API gravity in the range of 32-38° and is also known as “upgraded crude”.BACKGROUND OF T...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): C10G47/22
CPCC10G21/003C10G47/22C10G2300/308C10G67/049C10G67/00
Inventor COLVAR, JAMES J.WISDOM, LAWRENCE I.
Owner INST FR DU PETROLE
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