Method and system for preparing a pipelineable hydrocarbon mixture
AssigneeStatoil Canada Limited
InventorsEinar Eng JOHNSEN, Knut Vebjørn GRANDE, Anne HOFF, Marianne HAUGAN, Harald VINDSPOLL
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Abstract
The present invention provides a method for preparing a pipelineable hydrocarbon mixture from a crude heavy hydrocarbon mixture comprising: —visbreaking said crude heavy hydrocarbon mixture at a temperature of 350 to 440° C. and a pressure of 20 to 150 bar for 0.5 to 15 minutes to produce a visbroken hydrocarbon mixture; and —mixing said visbroken hydrocarbon mixture with a diluent to produce said pipelineable hydrocarbon mixture.
Claims37
A method for preparing a pipelineable hydrocarbon mixture from a crude heavy hydrocarbon mixture comprising:
- visbreaking said crude heavy hydrocarbon mixture at a temperature of 350 to 440° C. and a pressure of 20 to 150 bar for 0.5 to 15 minutes to produce a visbroken hydrocarbon mixture;
- and
- mixing said visbroken hydrocarbon mixture with a diluent to produce said pipelineable hydrocarbon mixture.
A system for preparing a pipelineable hydrocarbon mixture from a crude heavy hydrocarbon mixture comprising:
- a separator for separating a heavy hydrocarbon and water mixture into a crude heavy hydrocarbon mixture and water, wherein said separator has an inlet for heavy hydrocarbon and water mixture, an outlet for water and an outlet for crude heavy hydrocarbon mixture;
- a visbreaker for visbreaking said crude heavy hydrocarbon mixture having an inlet for crude heavy hydrocarbon mixture fluidly connected to crude heavy hydrocarbon outlet of said separator and an outlet for visbroken hydrocarbon mixture;
- a cooling means for cooling said visbroken hydrocarbon mixture having an inlet for visbroken hydrocarbon mixture fluidly connected to the visbroken hydrocarbon mixture outlet of said visbreaker and an outlet for cooled visbroken hydrocarbon mixture;
- and
- a means for adding diluent to said cooled visbroken hydrocarbon mixture to produce said pipelineable hydrocarbon mixture.
A visbroken hydrocarbon mixture obtainable by visbreaking a crude heavy hydrocarbon mixture at a temperature of 350 to 440° C. and a pressure of 20 to 150 bar for 0.5 to 15 minutes.
A visbroken hydrocarbon mixture obtained by visbreaking a crude heavy hydrocarbon mixture at a temperature of 350 to 440° C. and a pressure of 20 to 150 bar for 0.5 to 15 minutes.
A visbroken hydrocarbon mixture having the following properties:
- an API gravity of 12 to 22°;
- a viscosity of 50 to 2000 cSt at 15° C.;
- and
- an olefin content of less than 3.0%.
Dependencies are inferred from the claim text.