Methods of whole crude and whole crude wide cut hydrotreating and dewaxing low hetroatom content petroleum
AssigneeExxonMobil Technology and Engineering Company
InventorsXiaochun Xu, Xinrui Yu, Shifang Luo, Randolph J. Smiley, Joseph E. Gatt
Life of this patent
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Abstract
Methods of refining a whole crude oil stream. The methods involve first processing the crude either through a hydrotreating reactor comprising a dewaxing reactor bed or a flash evaporation separator. The treated streams are then further processed through a demetalization reactor bed, a hydroprocessing reactor bed, or both. The stream can then be still further processed via additional hydrotreating, distillation, or both.
Claims24
A method of refining a whole crude oil stream, the method comprising:
- feeding the whole crude oil stream into a hydrotreating reactor comprising a dewaxing reactor bed and one or more selected from a group consisting of a demetalization reactor bed and a hydroprocessing reactor bed;
- processing the whole crude oil stream within the hydrotreating reactor to create a treated stream;
- feeding the treated stream into the distillation tower;
- and
- processing the treated stream within the distillation tower to create one or more petroleum distillate streams.
A method of refining a whole crude oil stream, the method comprising:
- feeding the whole crude oil stream into a flash evaporation separator, the whole crude comprising less than about 20 wt % aromatics and 0.012 wt % or less of sulfur;
- processing the whole crude oil stream within the flash evaporation separator to create a plurality of flashed streams comprising at least one of a light ends stream, a flashed naphtha stream, and a kero plus stream;
- feeding the kero plus stream into a hydrotreating reactor comprising a dewaxing reactor bed and one or more selected from a group consisting of a demetalization reactor bed and a hydroprocessing reactor bed;
- processing the kero plus stream within the hydrotreating reactor to create a treated stream;
- and
- processing the treated stream within the distillation tower.
A method of refining a whole crude oil stream, the method comprising:
- feeding the whole crude oil stream into a flash evaporation separator to create a flash light ends stream, a flash middle stream, and a flash heavy ends stream;
- processing the flash middle stream within a hydrotreating reactor a hydrotreating reactor comprising a dewaxing reactor bed and one or more selected from a group consisting of a demetalization reactor bed and a hydroproces sing reactor bed to create a treated stream, the dewaxing reactor bed being arranged to contact the flash middle stream after the demetalization reactor bed;
- feeding the treated stream into the distillation tower;
- and
- processing the treated stream within the distillation tower to create one or more petroleum distillate streams.
A method of refining a whole crude oil stream, the method comprising:
- feeding the whole crude oil stream into a flash evaporation separator to create a flash light ends stream and a flash heavy ends stream;
- processing the flash light ends stream within a hydrotreating reactor a hydrotreating reactor comprising a dewaxing reactor bed and a demetalization reactor bed to create a treated stream, the dewaxing reactor bed being arranged to contact the flash middle stream after the demetalization reactor bed;
- feeding the treated stream into the distillation tower;
- and
- processing the treated stream within the distillation tower to create one or more petroleum distillate streams.
Dependencies are inferred from the claim text.