| Patent application number | Description | Published |
|---|
| 20120088702 | PROCESS FOR IMPROVING A RE-REFINED LUBE OIL STREAM - Embodiments of a process for improving a re-refined lube oil stream are provided. The process comprises the steps of introducing a gas stream comprising hydrogen (H | 04-12-2012 |
| 20140353209 | PROCESS FOR TREATING A NAPHTHA STREAM - One exemplary embodiment can be a process for treating a naphtha stream. The process may include providing the naphtha stream to a fractionation zone. The fractionation zone may include a fractionation column producing a first stream having one or more C5 | 12-04-2014 |
| 20150060334 | METHODS AND APPARATUSES FOR PROCESSING HYDROCARBON STREAMS CONTAINING ORGANIC NITROGEN SPECIES - Methods and apparatuses for processing hydrocarbon streams containing organic nitrogen species are provided. In an embodiment, a method for processing a hydrocarbon stream containing organic nitrogen species includes adding an aqueous acidic solution to a hydrocarbon feed stream to form a reaction stream. The method further includes contacting the reaction stream with a reaction surface and reacting the aqueous acidic solution and the organic nitrogen species to form an ammonium sulfate rich stream and a lean nitrogen naphtha stream. Also, the method includes separating an ammonium sulfate rich aqueous phase and an oil phase from the ammonium sulfate rich stream. | 03-05-2015 |
| 20150096923 | METHODS AND APPARATUSES FOR DESULFURIZING HYDROCARBON STREAMS - Methods and apparatuses for desulfurizing hydrocarbon streams are provided herein. In one embodiment, a method for desulfurizing a hydrocarbon stream includes separating the hydrocarbon stream into a heavier fraction and a lighter fraction. The heavier fraction includes a relatively higher amount of lower octane mono-unsaturates and the lighter fraction includes a relatively higher amount of higher octane mono-unsaturates. The method further includes hydrodesulfurizing the heavier fraction in a first hydrodesulfurization zone and hydrodesulfurizing the lighter fraction in a second hydrodesulfurization zone. Further, the method forms a hydrodesulfurized stream from the heavier fraction and the lighter fraction. | 04-09-2015 |
| 20150368571 | PROCESS FOR CONVERTING FCC NAPHTHA INTO AROMATICS - A method and apparatus for processing hydrocarbons are described. The method includes fractionating a hydrocarbon stream to form at least two fractions. The first fraction is reformed to form a reformate stream, and the reformate stream is introduced into an aromatics processing zone to produce aromatic products. At least a portion of the second fraction is cracked in a fluid catalytic cracking unit. A selectively hydrogenated light naphtha stream is formed by separating the cracked hydrocarbon stream into at least two streams and selectively hydrogenating the light naphtha stream, or selectively hydrogenating the cracked hydrocarbon stream and separating the hydrogenated cracked hydrocarbon stream into at least two streams. Aromatics are extracted from the selectively hydrogenated light naphtha stream forming an extract stream and a raffinate stream. The extract stream is hydrotreated, sent to the aromatics processing zone to produce additional aromatic products. | 12-24-2015 |
| 20160024396 | METHODS AND SYSTEMS FOR REMOVING SULFUR COMPOUNDS FROM A HYDROCARBON STREAM - Methods and apparatus for removing sulfur compounds from a hydrocarbon stream are disclosed. In one exemplary embodiment, a method for removing sulfur compounds from a hydrocarbon stream includes the steps of steam stripping a mixed hydrocarbon stream to form a steam stripped overhead stream comprising naphtha and lighter hydrocarbons and a steam stripped bottoms stream comprising naphtha and heavier hydrocarbons; fractionating the steam stripped bottoms stream to form a fractionated overhead stream comprising naphtha hydrocarbons; combining the steam stripped overhead stream with a portion of the fractionated overhead stream and an H2-rich makeup gas stream; and hydrodesulfurizing the combined stream to form an HDS reaction effluent stream. | 01-28-2016 |
| 20160101404 | PROCESS AND APPARATUS FOR SELECTIVELY HYDROGENATING NAPHTHA - The process and apparatus of the present invention selectively hydrogenates a heavier olefinic naphtha stream in an upstream catalyst bed and the hydrogenated effluent and a lighter olefinic naphtha stream in a downstream catalyst bed. The heavier di-alkenes are less re-active and are contacted with more hydrogenation catalyst than the lighter di-alkenes which are more re-active. | 04-14-2016 |
| 20160102258 | PROCESS AND APPARATUS FOR SELECTIVELY HYDROGENATING NAPHTHA - The process and apparatus of the present invention selectively hydrogenates a heavier olefinic naphtha stream in an upstream catalyst bed and the hydrogenated effluent and a lighter olefinic naphtha stream in a downstream catalyst bed. The heavier di-alkenes are less re-active and are contacted with more hydrogenation catalyst than the lighter di-alkenes which are more re-active. | 04-14-2016 |
