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| Number | Title | Issue Date |
| 7407571 | Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds A novel apparatus for producing sweet synthetic crude from a heavy hydrocarbon feed includes: an upgrader for receiving the heavy hydrocarbon feed and producing a distillate fraction including sour products, and high-carbon content by-products; a gasifier for receiv... | 08/05/2008 |
| 7267746 | Dividing wall distillation column control apparatus A control apparatus and control method for controlling the separation in a dividing wall distillation column of at least two feeds into at least three products is disclosed. The apparatus uses a temperature measuring device to measure the temperature of fluid in the... | 09/11/2007 |
| 7249469 | Method for separating a multicomponent stream This invention relates to a method for separating a stream having benzene, toluene and alkyl benzene, said method comprising: feeding the stream into a first distillation column, wherein the stream comprises between about 60 mole percent to about 85 mole percent tol... | 07/31/2007 |
| 7118653 | Process for the purification of mixtures of toluenediisocyanate incorporating a dividing-wall distillation column Process for the purification of toluenediisocyanate from a crude distillation feed which includes toluenediisocyanate, an organic solvent and less than 2% by weight phosgene by separating the crude distillation feed in a dividing-wall distillation column into at lea... | 10/10/2006 |
| 7108770 | Process for the purification of toluene diisocyanate incorporating a dividing-wall distillation column for the final purification Toluene diisocyanate is recovered from a crude distillation feed containing less than 2% by weight of phosgene by (a) fractionating the crude distillation feed containing less than 2% by weight of phosgene to remove the solvent and optionally the reaction res... | 09/19/2006 |
| 7005057 | Hydrocracking process for the production of ultra low sulfur diesel A catalytic hydrocracking process for the production of ultra low sulfur diesel wherein a hydrocarbonaceous feedstock is hydrocracked at elevated temperature and pressure to obtain conversion to diesel boiling range hydrocarbons. The resulting hydrocracking zone eff... | 02/28/2006 |
| 7005058 | Process and apparatus for removing sulfur from hydrocarbons Disclosed is an apparatus and process for controlling the sulfur content of effluent from a hydrocarbon fractionation column. The effluent includes a low boiling stream, a middle boiling stream and a high boiling stream. Either of the feed or the low boiling stream ... | 02/28/2006 |
| 6927314 | Fractionation and treatment of full boiling range gasoline A process to increase the octane number of a naphtha boiling range feed stock has been developed. Using a dividing wall column, the feed stock is separated into a light fraction comprising compounds containing five carbon atoms or less, an intermediate fraction cont... | 08/09/2005 |
| 6702936 | Method of and apparatus for upgrading and gasifying heavy hydrocarbon feeds A novel apparatus for producing sweet synthetic crude from a heavy hydrocarbon feed comprising: an upgrader for receiving said heavy hydrocarbon feed and producing a distillate fraction including sour products, and high-carbon content by-products; a gasif... | 03/09/2004 |
| 6413378 | Apparatus for separation and purification of saturated hydrocarbon and method for separation and purification An extractive distillation tower 4 supplied with a feedstock containing butadiene and a solvent and for distilling the feedstock to separate and purify the butadiene. The tower 4 includes sensors 32, 34 for detecting concentrations of specific impurities ... | 07/02/2002 |
| 6274003 | Apparatus for upgrading hydrocarbon feeds containing sulfur, metals, and asphaltenes Upgrading of a hydrocarbon feed containing sulfur, metals, and asphaltenes involves applying the feed to a distillation column for producing a substantially asphaltene-free, and metal-free fraction and a non-distilled fraction containing sulfur, asphalten... | 08/14/2001 |
| 6086721 | Facility for distilling a liquid product A vacuum-creating apparatus of the unit is provided with a pump and a separator, wherein the pump is connected at its inlet to the separator, a jet device is made as a liquid-gas device and is connected at its outlet, by means of a pressure main, to the s... | 07/11/2000 |
| 5980694 | Apparatus for the purification of water contaminated with oil An installation for cleaning oil-polluted water, in particular at oil and gas production plants, is provided with a distillation column having a polluted water feed and at least one contact packing above which the outlet of the polluted water feed is loca... | 11/09/1999 |
| 5843384 | Plant for purifying spent oil The invention concerns a plant for purifying spent oil, including apparatus for dehydration, preferably by atmospheric distillation, directly followed by vacuum distillation producing a residue and at least one distilled oil fraction. The vacuum residue d... | 12/01/1998 |
| 5811607 | Composite shingle particle salvage system A process and apparatus for the recovery of hydrocarbons from hydrocarbon containing composite materials, particularly roofing materials including asphalt and solid components to recover asphalt and the solid components. The process includes the steps of:... | 09/22/1998 |
| 5755933 | Partitioned distillation column An integrated distillation column having a partitioned stripping or absorption section is presented. The integrated stripping/distillation column comprises a single shell housing a refluxed absorption section and a reboiled stripping section. The strippin... | 05/26/1998 |
| 5730002 | Process and device for fractionating a fluid containing several separable constituents, such as a natural gas A gas containing at least two constituents A and B having different temperatures is fractionated by carrying out at least the two cooling and contacting phases as follows: a) during a first stage, said gas is at least partly cooled to cause condensation o... | 03/24/1998 |
| 5722258 | Apparatus for combined heat and mass transfer A liquid-vapor contact apparatus has pairs of vertical outer walls disposed in the manner of the vertical faces of a cuboid. The apparatus includes a plurality of spaced, parallel, vertical plates. Between each pair of adjacent plates there is a packing c... | 03/03/1998 |
| 5718127 | Liquid vapor contact apparatus A liquid-vapour contact apparatus has pairs of vertical outer walls disposed in the manner of the vertical faces of a cuboid. The apparatus includes a plurality of spaced, parallel, vertical plates. Between each pair of adjacent plates there is a packing ... | 02/17/1998 |
| 5645692 | Process for the stabilization of crude oils at the outlet of the extraction well and device for implementation thereof A method and apparatus for stabilizing crude oil at the outlet of a well, including at least one separation step wherein the crude oil is pressure distilled in at least one distillation column into at least two cuts, i.e., a C1-5 hydrocarbon ga... | 07/08/1997 |
| 5537840 | Downflow plate and fin heat exchanger for cryogenic rectification A downflow heat exchanger, particularly applicable as the main condenser/reboiler of a double column cryogenic air separation plant, wherein liquid distribution for uniform flow is carried out above the vapor passages and the well distributed liquid is pa... | 07/23/1996 |
| 5527449 | Conversion of waste oils, animal fats and vegetable oils Waste lubricating oil, vegetable oil and animal fat are reprocessed into commercially usable diesel fuel and naphtha by thermocracking. A thermocracker unit is fired with sludge removed from the principal pool of oil or fat undergoing vaporization. The va... | 06/18/1996 |
| 5507356 | Column having integrated heat exchanger Column having integrated heat exchanger A column is described including a column body (1) and at least one heat exchanger (2) installed directly on the column head. This heat exchanger is a plate heat exchanger which is specially arranged so that the cond... | 04/16/1996 |
| 5501079 | Apparatus and process for cryogenic separation of air and liquid distributor for a mass transfer column An apparatus and process for cryogenic separation of air are described which utilize a pipe distributor or a channel distributor for liquid distribution. The air separation apparatus contains a rectifying column having at least one section equipped with p... | 03/26/1996 |
| 5438836 | Downflow plate and fin heat exchanger for cryogenic rectification A downflow heat exchanger, particularly applicable as the main condenser/reboiler of a double column cryogenic air separation plant, wherein liquid distribution for uniform flow is carried out above the vapor passages and the well distributed liquid is pa... | 08/08/1995 |
| 5389242 | Process for the fractionation of oil and gas on a petroleum deposit effluent A description is given of a process for the fractionation of oil and gas on a petroleum deposit effluent, including: (a) a stage wherein the liquid and gaseous phases are separated at the gas evacuation pressure P1, producing a gaseous fraction G1, on the one ... | 02/14/1995 |
| 5362381 | Method and apparatus for conversion of waste oils Waste lubricating oil is reprocessed into commercially usable diesel fuel and naphtha by thermocracking. A thermocracker unit is fired with sludge removed from the principal pool of oil undergoing vaporization. The vapors are separated from liquids in a p... | 11/08/1994 |
| 5339648 | Distillation system with partitioned column A distillation system, particularly useful for the cryogenic distillation of feed air, employing a first column and a partitioned second column whereby three separate product streams may be withdrawn from the partitioned column.... | 08/23/1994 |
| 5252201 | Fractionating process and fractionator An improved fractionating process is provided wherein a liquid stream is withdrawn from the separation zone of the fractionator, is cooled and is recycled to the fractionator at a location below the location of withdrawal of the liquid stream. An improved... | 10/12/1993 |
| 5167773 | Distillation tower and sidestream stripper therefor A distillation tower (1) has a plurality of liquid sidestream lines (5, 6, 7) and a multi-stage sidestream stripper (13) which includes a respective stripping section (14, 15, 16) for each sidestream line housed in a common, upright, cylindrical shell (28... | 12/01/1992 |
| 5034103 | Distillation column with a draw-off device A draw-off device is disclosed for a vacuum distillation column in which device a layer of gutters is provided. A secondary wall is arranged in the gutters creating a heat-insulating layer to reduce the condensation of vapor passing along the outer walls ... | 07/23/1991 |
| 4839108 | Liquid distribution device and pan A liquid distribution device for more uniformly distributing a liquid to packed beds is composed of a box-pipe distributor, for the delivery of liquid to a pan distributor having a deck and risers postioned on the deck, with ells contained in the risers. ... | 06/13/1989 |
| 4752358 | Apparatus for solvent extraction of tar sands Tar sands are solvent extracted to form an oil-containing extract and a sandy residue. The solvent can be distilled from the oil and recycled. Residual solvent vapors can be adsorbed on an adsorbent bed. The sandy residue can be flash pyrolyzed to provide... | 06/21/1988 |
| 4744868 | Distillation column and method A stripping column is comprised of one or more mixing channels situated in parallel arrangement, each channel in the form of a zigzag strip through which liquid cascades in a series of falls alternating with a corresponding series of pools. Simultaneously... | 05/17/1988 |
| 4629534 | Fractional distillation apparatus and method An apparatus and method are provided for the fractional distillation of liquids in a fractionation column wherein cool liquids from the bottom tray of the column are effectively prevented from passing out directly with bottoms product before first passing... | 12/16/1986 |
| 4592830 | Hydrovisbreaking process for hydrocarbon containing feed streams A hydrogen donor solvent selected from the group consisting of a full range crude oil and an atmospheric topped crude oil is used in a hydrovisbreaking process. The heavy fraction being processed is heated in the presence of hydrogen and the solvent under... | 06/03/1986 |
| 4529381 | Radiation shield and method for shielding a furnace convection section Apparatus and method for substantially blocking the "line-of-sight" between a radiant section of a furnace and a convection section positioned above the radiant section, while at the same time permitting flue gases from the radiant section to travel subst... | 07/16/1985 |
| 4422901 | Apparatus for the continuous solvent extraction of bitumen from oil-bearing sand In a continuous process for the extraction of crude refinery stock from oil-bearing sand, miscella produced earlier in the process is returned and mixed with oil-bearing sand to provide a feed slurry which, after heating, is separated into two streams, on... | 12/27/1983 |
| 4406743 | Fractionation column for reclaiming used lubricating oil A novel process for the purification of used oil comprising removing the ash-forming components, then subjecting the oil to vacuum fractionation. A novel vacuum fractionation column is also disclosed.... | 09/27/1983 |
| 4131538 | Method of separating a predetermined fraction from petroleum oil using multistage evaporators A method and apparatus for separating a predetermined fraction from a crude oil includes preheating the crude oil to vaporize a portion, and feeding the two-phase crude to a first stage flash evaporator. In the first stage evaporator, a vapor portion is s... | 12/26/1978 |
