Process for producing synthetic naphtha fuel and synthetic naphtha fuel produced by that process
AssigneeSasol Technology (Pty) Ltd
InventorLuis Pablo Dancuart
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Abstract
The invention provides a process for the production of a synthetic naphtha fuel suitable for use in compression ignition (CI) engines, the process including at least the steps of hydrotreating at least a fraction of a Fischer-Tropsch (FT) synthesis reaction product of CO and H2, or a derivative thereof, hydrocracking at least a fraction of the FT synthesis product or a derivative thereof, and fractionating the process products to obtain a desired synthetic naphtha fuel characteristic. The invention also provides a synthetic naphtha fuel made by the process as well as a fuel composition and a Cloud Point depressant for a diesel containing fuel composition, said fuel composition and said depressant including the synthetic naphtha of the invention.
Claims13
A process for the production of synthetic fuel suitable for use in CI engines, the process including at least the step of blending a synthetic naphtha fuel with diesel fuel, wherein the synthetic naphtha fuel is produced according to a process including at least the steps of:
- a) hydrotreating at least a condensate fraction of a Fischer-Tropsch (FT) synthesis reaction product of CO and H2, or a derivative thereof;
- b) hydrocracking at least a wax fraction of the FT synthesis product or a derivative thereof;
- c) fractionating the hydrocracked fraction of step b) to obtain desired synthetic naphtha fuel components;
- and
- d) blending said components of step c) with the hydrotreated fraction of step a) in a desired ratio to obtain a synthetic naphtha fuel having desired characteristics for use in a CI engine.
A Fischer-Tropsch derived synthetic naphtha fuel having a Cetane number above 30, a Cloud Point of below −30° C., more than 30% isoparaffins, and a Final Boiling Point (FBP) of less than 160° C.
A Fischer-Tropsch derived Cloud Point depressant for a diesel fuel containing fuel composition, the Cloud Point depressant having a Cetane number above 30, a Cloud Point of below −30° C., more than 30% isoparaffins, and a Final Boiling Point (FBP) of less than 160° C.
Dependencies are inferred from the claim text.