| Patent Number |
Title Of Patent |
Date Issued |
| 7025533 |
Concentrated buoyancy subsea pipeline apparatus and method |
April 11, 2006 |
| Various apparatuses and methods to traverse an undersea topographic feature (12) with a subsea pipeline (18) are disclosed. The apparatuses and methods of the present invention accomplish this task through the use of a concentrated buoyancy scheme (10). The invention disclosed can allow |
| 7011740 |
Catalyst recovery from light olefin FCC effluent |
March 14, 2006 |
| A method and system for recovering fines from a light FCC-type effluent gas. Cracked gases from the reactor are cooled by direct contact with circulating oil in an oil quench tower. The circulating oil also washes out the catalyst fines carried with the reactor effluent gas. A flow of |
| 6962661 |
Liquid--liquid extraction apparatus and method |
November 8, 2005 |
| Method and apparatus for contacting two liquid phases for liquid-liquid extraction in a vertical extraction vessel. A relatively heavier liquid phase, descending the extraction vessel at a relatively low volumetric flow rate, is dispersed into a continuous phase comprising a relatively |
| 6912965 |
Semisubmersible trimaran |
July 5, 2005 |
| A semisubmersible trimaran for use in an afloat sea base is disclosed. The trimaran has an upper deck structure 12 supported on a longitudinal center hull 26 and column-stabilized, longitudinal outrigger pontoons 28. The center hull 26 and pontoon columns 38 and 40 have a reduced waterpl |
| 6855272 |
Low pressure drop reforming exchanger |
February 15, 2005 |
| Syngas production process and reforming exchanger. The process involves passing a first portion of hydrocarbon feed mixed with steam and oxidant through an autothermal catalytic steam reforming zone to form a first reformed gas of reduced hydrocarbon content, passing a second portion of |
| 6825387 |
Low sodium cleavage product |
November 30, 2004 |
| Washed cleavage product (WCP) in a phenol manufacturing process is treated to remove sodium ions. The WCP is contacted with a cation exchange resin in hydrogen form, and then with anion exchange resin in free base or hydroxide form, to produce a WCP essentially free of sodium ions. The |
| 6818198 |
Hydrogen enrichment scheme for autothermal reforming |
November 16, 2004 |
| Recycling a portion of autothermal reformer effluent into the steam-hydrocarbon feed stream with a thermo-compressor ejector is disclosed, using the preheated feed mixture as motive fluid. Syngas recycle-motive fluid molar ratios are 0.2-1.0, selected to optimize the overall configur |
| 6818028 |
Steam-methane reformer furnace with convection-heated pre-reformer |
November 16, 2004 |
| A steam/hydrocarbon reformer employing a convection-heated pre-reformer is disclosed. The pre-reformer comprises catalyst-filled tubes disposed in the transition section between the radiant and convection sections. The pre-reformer tubes are transverse to the flow of flue gas from the ra |
| 6782950 |
Control wellhead buoy |
August 31, 2004 |
| The present invention relates to a subsea system for the production of hydrocarbon reserves. More specifically, the present invention relates to a control wellhead bouy that is used in deepwater operations for offshore hydrocarbon production. In a preferred embodiment, a bouy for support |
| 6752214 |
Extended reach tie-back system |
June 22, 2004 |
| A system for producing hydrocarbons from a subsea well comprises an unmanned floating platform positioned over the well, the platform including equipment for inserting coiled tubing or wireline tools or the like into the well for servicing, controlling, or conducting other operations |
| 6656366 |
Method for reducing solids buildup in hydrocarbon streams produced from wells |
December 2, 2003 |
| An apparatus and method are provided for preventing or reducing buildup of certain solids in a system or a conduit containing or conveying a fluid. The fluid can be a single phase liquid, such as a liquid hydrocarbon, or a multiphase fluid such as a mixture of several immiscible liquids, |
| 6599488 |
Pour point depression unit using mild thermal cracker |
July 29, 2003 |
| A method for lowering the cloud/pour point of a waxy crude oil in locations where size and/or weight of the facility may need to be limited (i.e. arctic zones and offshore). The major components of the system comprise a fractionation/quench tower and a reaction furnace. The furnace has |
| 6536528 |
Extended reach tie-back system |
March 25, 2003 |
| A system for producing hydrocarbons from a subsea well comprises an unmanned floating platform positioned over the well, the platform including equipment for inserting coiled tubing or wireline tools or the like into the well for servicing, controlling, or conducting other operations |
| 6503460 |
Staged catalyst regeneration in a baffled fluidized bed |
January 7, 2003 |
| Staged combustion in a single regenerator of a FCC unit is disclosed. The regenerator has a spent catalyst distributor at the top of the catalyst bed, and an air grid at the lower end of the bed. A baffle separates the catalyst bed into upper and lower stages. Excess oxygen is present in |
| 6499979 |
Prilling head assembly for pelletizer vessel |
December 31, 2002 |
| Disclosed is a pelletizer vessel and a prilling head assembly for use in the pelletizer vessel for prilling a hard resid material. The pellitizer vessel has an has an upright pelletizing vessel with an upper prilling zone, a sphere-forming zone below the prilling zone, a cooling zone bel |
| 6475294 |
Subsea pig reloader |
November 5, 2002 |
| A system for supplying pigs to a subsea pig launcher using a system carried and controlled by a remotely operated vehicle. The pigs are carried in racks that hold multiple pigs. The racks are extended and the pigs are allowed to drop into the barrel of the subsea pig launcher. The system |
| 6361682 |
Pelletization of petroleum resids |
March 26, 2002 |
| Disclosed are an integrated process and plant for slurrying and gasification or combustion of a petroleum resid such as asphaltenes from to make a synthesis gas or steam and/or power. The resid is prilled into a gaseous medium as a liquid with a rotating prilling head to form particles |
| 6357526 |
Field upgrading of heavy oil and bitumen |
March 19, 2002 |
| A process and system which integrates on-site heavy oil or bitumen upgrading and energy recovery for steam production with steam-assisted gravity drainage (SAGD) production of the heavy oil or bitumen. The heavy oil or bitumen produced by SAGD is flashed to remove the gas oil fraction, |
| 6332975 |
Anode grade coke production |
December 25, 2001 |
| The invention is a process for making anode grade coke which comprises solvent deasphalting a residue feedstock to obtain an essentially asphaltene-free, resin-containing stream and coking the resin-containing stream in a delayed coker to make anode coke. The solvent deasphalting can |
| 6331245 |
Petroleum resid pelletization |
December 18, 2001 |
| Disclosed are a method and apparatus for making substantially spherical, homogenous petroleum resid pellets having a size range between 0.1 and 10 mm, a penetration of essentially 0, a softening point temperature from about 200.degree. to about 400.degree. F., a residual water content of |
| 6291734 |
Integrated low pressure depropanizer/debutanizer column |
September 18, 2001 |
| An integrated debutanizer and low pressure depropanizer column and process for separating a feed stream comprising C.sub.3 's, C.sub.4 's and C.sub.5 + is disclosed. A single shell houses a refluxed upper portion and a lower portion of the column. A generally vertical wall partitions the |
| 6283206 |
Gas lift umbilical cable and termination assemblies therefor |
September 4, 2001 |
| A gas lift umbilical including a flexible pipe having a collapse resistant wall and a first sealing layer formed on an interior surface of the collapse resistant wall. The interior surface defines a longitudinal passage. A flexible gas lift hose is mounted within the longitudinal pas |
| 6278374 |
Flame detection apparatus and method |
August 21, 2001 |
| The present invention relates to flame detection apparatus and method. The present invention provides a method and apparatus for monitoring the status of a combustion unit having at least one bumer. Initially, a digital image of a flame corresponding to a flame is acquired. Next, a v |
| 6237545 |
Refinery process furnace |
May 29, 2001 |
| Refinery process furnaces are disclosed that have horizontal-helical radiant coils and/or improved ladder-type supports for the horizontal tubes. The coils have a tubeside fluid flow path from an inlet pipe section through an alternating series of straight horizontal pipe sections an |
| 6171570 |
Isothermal ammonia converter |
January 9, 2001 |
| A vertical tubular reactor for converting ammonia synthesis loop purge gas to ammonia; a method for converting ammonia synthesis loop purge gas to form additional ammonia; and a method for retrofitting a conventional ammonia plant having a synthesis loop using an iron-based synthesis |
| 6132687 |
Horizontal ammonia converter adapted for high activity catalyst |
October 17, 2000 |
| A method for modifying a standard two-bed horizontal ammonia converter to provide increased conversion and/or production capacity by placing the first secondary catalyst bed of the existing converter in parallel flow with the existing primary catalyst bed and replacing magnetite catalyst |
| 6077985 |
Integrated deethanizer/ethylene fractionation column |
June 20, 2000 |
| An integrated deethanizer and ethylene fractionation column and process for separating a feed stream comprising ethylene, ethane and C.sub.3+ is disclosed. A single shell houses a refluxed upper portion and a lower portion of the column. A generally vertical wall partitions the lower |
| 6059959 |
Varying carbon on catalyst to magnetically separate high metals catalyst |
May 9, 2000 |
| This process controls the magnetic separation of high metals catalyst by influencing the magnetic susceptibility by carbon levels on catalyst. In an FCC/RCC.RTM. operation employing magnetic separation of catalyst, particularly where the catalyst has enough metals to exhibit a high m |
| 6041942 |
Magnetic catalyst separation using stacked magnets |
March 28, 2000 |
| An improved magnet configuration of the magnet field generated by the magnetic roller in a magnetic separator to increase the separation capability of magnetic separators includes disc shaped magnets forming a magnetic roller beneath a Kevlar.TM. belt upon which withdrawn catalyst is |
