| Patent application number | Description | Published |
|---|
| 20090000985 | Process for Upgrading Contaminated Hydrocarbons - A process for the recovery and purification of a contaminated hydrocarbons, wherein the contamination includes metals, finely divided solids and non-distillable components. The process further includes hydroprocessing the oil to remove deleterious compounds, to produce high quality reusable lubricants, solvents and fuels and to improve the quality of water byproduct. | 01-01-2009 |
| 20090030251 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 01-29-2009 |
| 20090065399 | REMOVAL OF SULFUR-CONTAINING COMPOUNDS FROM LIQUID HYDROCARBON STREAMS - An improved method for desulfurizing a fuel stream such as a diesel stream is disclosed which includes generation of a sulfone oil, the desulfurization of the sulfone oil and the recycling of the resulting biphenyl-rich stream and ultra-low sulfur diesel streams. The method includes combining a thiophene-rich diesel stream with an oxidant to oxidize the thiophenes to sulfones to provide a sulfone-rich diesel stream. Sulfone oil is extracted from the sulfone-rich diesel stream to provide sulfone oil and a first low-sulfur diesel stream The low-sulfur diesel stream is recycled. The sulfone-rich oil stream is combined with an aqueous oxidant-containing stream, such as caustic stream, which oxidizes the sulfones to biphenyls and forms sulfite to provide a second low-sulfur diesel stream | 03-12-2009 |
| 20090158662 | SYSTEM AND METHOD OF INCREASING SYNTHESIS GAS YIELD IN A FLUID CATALYTIC CRACKING UNIT - Systems and methods of reducing refinery carbon dioxide emissions by improving the overall synthesis gas yield in a fluid catalytic cracking unit having a reactor and a regenerator are discussed. In one example, a method comprises introducing spent catalyst and a feed gas comprising oxygen to the regenerator at gasification conditions. The method further comprises heating the spent catalyst to burn coke therefrom to produce a synthesis gas. The method further comprises combining the synthesis gas with a dry gas comprising hydrogen, creating the overall synthesis gas and thereby increasing the yield of the overall synthesis gas produced in the FCC unit. | 06-25-2009 |
| 20090159494 | HYDROCRACKING PROCESS FOR FABRICATING JET FUEL FROM DIESEL FUEL - A method for obtaining jet fuel from diesel fuel is provided, the method comprising subjecting the diesel fuel to hydrocracking to convert at least a portion of the diesel fuel into a mixture of light hydrocarbons, kerosene, naphtha and a liquefied petroleum gas, isolating the kerosene, recovering jet fuel from the kerosene, subjecting at least a portion of the mixture of kerosene, naphtha and a liquefied petroleum gas to steam forming to obtain a synthesis gas containing hydrogen, and recycling hydrogen contained in the synthesis gas to the hydrocracking step. A modular system for performing the method is also provided. | 06-25-2009 |
| 20090163351 | SYSTEM AND METHOD OF REGENERATING CATALYST IN A FLUIDIZED CATALYTIC CRACKING UNIT - Systems and methods of improving synthesis gas quality in a fluid catalytic cracking unit are disclosed. In one example, a method comprises reacting a first stage regeneration gas comprising oxygen with spent catalyst from a reactor in a first stage of a regenerator to consume the oxygen in the first stage regeneration gas. This reaction produces a synthesis gas output and partially regenerated catalyst. The method further comprises reacting a second stage regeneration gas comprising oxygen with the partially regenerated catalyst in a second stage of the regenerator to regenerate the partially regenerated catalyst. This reaction produces the first stage regeneration gas for reaction with the spent catalyst in the first stage of the regenerator. Through the first and second stage reactions, the spent catalyst is regenerated and the synthesis gas quality is improved. | 06-25-2009 |
| 20090288939 | Distillation Apparatus - The apparatus comprises at least two distillation zones located within the column shell to produce an overhead and bottoms product from the first distillation zone and an intermediate product from the second distillation zone. A partition separates the two zones to prevent mass transfer across the boundary between the zones while permitting heat transfer across the boundary. A conduit provides fluid communication between a side draw stage in the first distillation zone and the second distillation zone. | 11-26-2009 |
| 20090288940 | Distillation Process - The process employs at least two distillation zones located within a column shell to produce an overhead and bottoms product from the first distillation zone and an intermediate product from the second distillation zone. Fluid is withdrawn from a side draw stage in the first distillation zone and passed through a conduit to the second distillation zone. A partition envelopes the second distillation zone to prevent mass transfer with the first distillation zone proximate the partition. The second distillation zone may be located relative to the first distillation zone to benefit from heat transfer across the partition. | 11-26-2009 |
| 20100047149 | METHODS FOR PREPARING COMPOSITIONS COMPRISING AMMONIUM NITRATE DOUBLE SALTS - Methods for the production of ammonium sulfate nitrate include (a) providing at a temperature of less than about 175° C. a melt including ammonium nitrate, ammonium sulfate, and water and the water content is greater than about 2 wt % based on the total weight of ammonium nitrate, ammonium sulfate and water in the melt, and (b) solidifying from the melt 1:2 ANS double salt by cooling at least a portion of the melt at a rate of less than about 100° C./min. | 02-25-2010 |
| 20100143213 | Process for Reducing Benzene Concentration in Reformate - A process and system for separating and saturating benzene from a reforming reactor effluent begins with introducing the reforming reactor effluent to a combined stabilizer and naphtha splitter. An overhead stream comprising light ends, a sidecut stream comprising C4− C5 compounds, a bottoms stream comprising C7+ compounds and a heart cut stream comprising C4, C5, C6 compounds including benzene are all removed from the combined stabilizer and naphtha splitter. The heart cut stream is introduced to a side stripper to produce a side stripper overhead stream reduced in benzene and a side stripper bottoms stream enriched in benzene. At least a portion of the side stripper bottoms stream enriched in benzene is introduced into a hydrogenation zone to saturate benzene and generate a hydrogenation zone effluent reduced in benzene. The side stripper overhead stream may be recycled to the combined stabilizer and naphtha splitter. | 06-10-2010 |
| 20100145118 | Process for Reducing Benzene Concentration in Reformate - A process and system for separating and saturating benzene from a reforming reactor effluent begins with introducing the reforming reactor effluent to a combined stabilizer and naphtha splitter. An overhead stream comprising light ends, a sidecut stream comprising C4-C5 compounds, a bottoms stream comprising C7+ compounds and a heart cut stream comprising C4, C5, C6 compounds including benzene are all removed from the combined stabilizer and naphtha splitter. The heart cut stream is introduced to a side stripper to produce a side stripper overhead stream reduced in benzene and a side stripper bottoms stream enriched in benzene. At least a portion of the side stripper bottoms stream enriched in benzene is introduced into a hydrogenation zone to saturate benzene and generate a hydrogenation zone effluent reduced in benzene. The side stripper overhead stream may be recycled to the combined stabilizer and naphtha splitter. | 06-10-2010 |
| 20100183485 | Coking Apparatus and Process for Oil-Containing Solids - A process for upgrading unconventional or heavy oils such as, tar sands, shale oil, or bitumen. This process may include a coking scheme in which oil-containing solids, of suitable size, are fed directly into the riser of an FCC unit. Contacting a hot stream of solids causes vaporization and produces a gaseous product stream. The gaseous product may be separated out in a separating vessel and coked or unconverted oil-containing solids may be transferred to a gasifier for combustion at high temperatures to remove the coke and residual oil. Syngas from the gasifier may be converted to hydrogen using a water gas shift reaction. The hydrogen may be used for hydroprocessing. | 07-22-2010 |
| 20100187823 | FIRED HEATER - A fired heater has two types of burners. The first burner is located in a duct which provides oxygen-containing gas to the heater to be combusted with the fuel provided by the burner. The second burner is located in the heater and provides both air and fuel for combustion. The heater may be located downstream of a gas turbine engine that cogenerates electricity and provides the oxygen-containing gas. | 07-29-2010 |
| 20100258427 | VAPOR-LIQUID CONTACTING APPARATUSES WITH VORTEX CONTACTING STAGES - Vapor-liquid contacting apparatuses, for example reactors and distillation columns (as well as reactive distillation apparatuses), comprising a vessel with one or more vortex contacting stages, are described. The one or more stages provide high interfacial area for the effective contacting of the different phases, in addition to the effective disengagement of these phases after contacting. | 10-14-2010 |
| 20110021851 | PROCESS OR SYSTEM FOR DESORBING AN ADSORBENT BED - One exemplary embodiment can be a process for desorbing an adsorbent bed. The process can include passing a desorbent stream through the adsorbent bed to remove at least one of a nitrile compound and an oxygenate compound. Generally, the desorbent stream after desorbing is combined with a feed stream for an alkylation zone after a selective hydrogenation zone. | 01-27-2011 |
| 20110027141 | Aromatics Co-Production in a Methanol-to-Propylene Unit - The present invention provides a reactor system having: (1) a first reactor receiving an oxygenate component and a hydrocarbon component and capable of converting the oxygenate component into a light olefin and the hydrocarbon component into alkyl aromatic compounds; (2) a separator system for providing a first product stream containing a C | 02-03-2011 |
| 20110028771 | Aromatics Co-Production in a Methanol-to-Propylene Unit - The present invention provides a reactor system having: (1) a first reactor receiving an oxygenate component and a hydrocarbon component and capable of converting the oxygenate component into a light olefin and the hydrocarbon component into alkyl aromatic compounds; (2) a separator system for providing a first product stream containing a C | 02-03-2011 |
| 20110118516 | Use of Olefin Cracking to Produce Alkylate - A process for producing a feedstock for gasolines having very little aromatic concentrations is disclosed. The present process uses by-product olefins and alkanes to produce an alkylate for use in gasoline blending. | 05-19-2011 |
