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WO/1996/006900A1 |
The invention relates to a process to selectively hydrogenate di-olefinically, poly-olefinically, and acetylenically unsaturated hydrocarbon components a C2 to C5+ or a C3 to C5+ fraction of a cracked hydrocarbon stream. The process comp...
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WO/1996/005900A1 |
The proposed vacuum distillation process involves dividing the liquid product fed into a vessel under a vacuum into a steam/gas phase and at least one liquid fraction, removal of the steam/gas phase from the vessel using a vacuum-produci...
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WO/1996/003198A1 |
Process and apparatus for desulfurizing the gaseous product of the vacuum distillation of the heavy fraction of crude oil. The initial gaseous mixture (8) to be desulfurized is an incondensible gas that contains hydrogen sulfide. A gas-l...
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WO/1995/035353A1 |
A process for treating a light cracked naphtha (2) in a catalytic distillation column (10) in which mercaptans and diolefins are removed simultaneously using a Pd catalyst (12). The treated naphtha is subsequently etherified. The mercapt...
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WO/1995/026388A1 |
A process for producing high-quality kerosene or gas oil stably and efficiently by hydrotreating crude oil, optionally after the removal of the naphtha fraction, by employing a specified catalyst, a process which allows catalyst life pro...
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WO/1995/013511A1 |
A process for separating a hydrocarbon mixture containing an alkene, a corresponding alkane having the same number of carbon atoms as the alkene and at least one heavier hydrocarbon component comprises the steps of: a) feeding the hydroc...
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WO/1995/010011A1 |
A process for separation of gases into two components of different boiling points, for example in the separation of ethane from natural gas, comprises a first separation tower (V1) and a second separation tower (V2). Liquid in stream (5)...
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WO/1995/004116A1 |
A method for stabilising 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 gas cut re...
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WO/1994/026848A1 |
A process method to produce the feedstocks for manufacturing high quality lube base oil of the present invention is utilizing the unconverted oil (UCO), which is produced from a fuels hydrocracker unit, to manufacture the feedstock oils ...
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WO/1994/021749A1 |
Thermal cracking of a hydrocarbon feed comprising heating the feed in a furnace (1); supplying the feed to a reaction chamber (15); separating the stream from the reaction chamber (15) into a light products stream and into a heavy produc...
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WO/1994/019426A1 |
This invention provides a method of removing benzene from gasoline blending stocks. A mixed hydrocarbon feed is distilled to separate benzene and non-aromatic components from non-benzene aromatic components. The benzene is then separated...
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WO/1994/018317A1 |
Dimerization and oligomerization of proteins are general biological control mechanisms that contribute to the activation of numerous cellular processes. We have developed a general procedure for the regulated (inducible) dimerization or ...
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WO/1994/013757A1 |
The invention concerns a method of obtaining, from the cracked gases emerging from a steam cracker, a polymerizable fraction of recyclable material consisting of styrene, methylstyrenes, vinyltoluenes, indene, methylindenes and fractions...
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WO/1994/008680A1 |
The invention relates to a method and an apparatus for selective and/or unselective vaporization and/or decomposition of, particularly, hydrocarbon compounds in liquid form, where the liquid is placed in an artificial gravitational field...
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WO/1994/006890A1 |
A process flow sequence for the reduction of polymer fouling while maintaining efficient production levels wherein a dual pressure, dual column configuration is used to effect the reduction in polymer fouling. The dual pressure, dual col...
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WO/1994/002209A1 |
A process and device are disclosed for cleaning in particular PCB-contaminated electric appliances (10) such as transformers filled with a fluid. The device has a fluid circuit (14), a distillator (34) for cleaning the fluid, a mixer (22...
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WO/1993/003115A1 |
The impurity content, e.g. propionitrile, in a fraction containing C5 or C6 tertiary olefins obtained by cracking hydrocarbons is reduced by distilling with an alkanol and removing the impurity as a higher boiling point fraction.
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WO/1993/000414A1 |
A process for the production of a substantially non-carcinogenic material from a reduced hydrocarbon crude feedstock, said material being selected from deasphalted oil and bright stock extract comprising: passing the reduced feedstock in...
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WO/1992/022624A1 |
Apparatus for reclaiming a useful oil product has an evaporation chamber, including an inlet for the waste oil, and an outlet for the vaporized oil, as a useful oil product. Burners are provided for heating the evaporation chamber to vap...
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WO/1992/015659A1 |
A method for refining waste lubricating oils into high-grade lubricating oils, comprising the following steps: 1) deposition of released water, distillation of residual water and light hydrocarbons; 2) fractionated production of fuel oil...
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WO/1992/008770A1 |
Commercially valuable oil is recovered from refinery-produced, Resource Conservation and Recovery Act classified, hazardous waste oil sludges by a series of volatilizing and condensing steps (which may vary depending on the oil, water, a...
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WO/1992/008682A1 |
A process sequence for treating cracked gases of heavy feedstocks which preferentially produces propylene to the exclusion of propane, butanes and butenes. The process eliminates the need for a depropanizer with the attendant savings in ...
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WO/1992/007921A1 |
The invention relates to a process and installation for producing liquid fuels and raw chemicals from petroleum as part of a refinery process with processing stages for distillation, thermal and/or catalytic cracking and reformation wher...
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WO/1992/003520A1 |
A process for separation and removal of stable polycyclic aromatic dimer foulants from refinery process streams by blending a paraffin stream (10) with a portion of heavy effluent (11) from a hydrocracking reactor (48) to induce precipit...
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WO/1990/005766A1 |
The gaseous mixture to be treated (1) is washed (5) between 0�C and -45�C by means of a solvent, CO2 and C3 and greater hydrocarbons to produce a methane current (8) containing at the most 2 mole per cent of CO2 and a liquid phase (1...
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WO/1990/000588A1 |
The hydrogen sulfide content of the atmosphere over sour heavy fuels oils is controlled by the addition of choline to the fuel oil.
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WO/1988/003942A1 |
A process for cracking petroleum hydrocarbon oil by heating, which comprises adding at most 1 part by weight of an active mercapto group-containing organic compound to 100 parts by weight of a petroleum hydrocarbon oil and distilling the...
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WO/1988/000493A1 |
The residue from a vacuum distillation process in a crude oil refinery is further treated by being submitted at a high temperature to a thin-film flash distillation in a high vacuum. By increasing the temperature, the feeding speed can b...
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WO/1986/006739A1 |
Control of crude oil distillation columns. In particular, properties of the liquid in the bottom tray of a side stream stripping unit (22) associated with the crude distillation column (10) are monitored in order to control product drawn...
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WO/1986/004338A1 |
An ester of a carboxy-containing interpolymer, said interpolymer having an RSV of from about 0.05 to about 2. The esterified polymer will include at least an ester group (A) which is a carboxylic ester group having at least about 8 aliph...
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WO/1984/001994A1 |
Liquid media, particularly spent oil, are heated by means of a radiating energy, particularly infrared radiation. An infrared radiation source (5) is arranged to this effect in a container (1). Insulating tubes (4) prevent a heat transfe...
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JP2024516242A |
Sustainable C for performing tar solvation6+C7A system and process for generating an aromatic-rich solvent stream within an olefins plant employing a system of two fuel oil towers receiving a hydrocarbon feed from a quench water separati...
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JP2024502436A |
A system and method for purging an isolation valve of a bottom slurry circuit using hydrocarbons, the isolation valve including a gate, a housing configured to receive the gate, and sealing to the gate. and an actuator configured to actu...
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JP2024502037A |
A system and method for purging an isolation valve using a liquid purge medium.
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JP7303258B2 |
A method for heating one or more streams from a refinery process, chosen from the group of a crude tower inlet, vacuum tower inlet, catalytic reformer inlet, coker inlet, thermal cracker inlet and hydrocracker inlet. The method includes ...
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JP2023085323A |
To provide a network of dividing-wall columns in a complex process units that improves energy efficiency of a process and requires a small plot area.A processing unit includes a naphtha hydrotreating unit comprising a first divided wall ...
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JP2023081566A |
To provide a method for operating a distillation column that is compatible with various operations and saves energy.A method of operating a distillation column and a distillation system comprises supplying at least one fraction distilled...
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JP7272938B2 |
A method for heating one or more streams from a refinery process, chosen from the group of a crude tower inlet, vacuum tower inlet, catalytic reformer inlet, coker inlet, thermal cracker inlet and hydrocracker inlet. The method includes ...
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JP2023518537A |
The present invention reduces prediction error, which corresponds to the sum of false predictions and lack of prediction, and allows better identification of operating parameters or characteristic values that may cause clogging. [Solutio...
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JP2023513408A |
A method for reducing or preventing corrosion or fouling in equipment for performing a chemical process, wherein the corrosion or fouling is caused by acidic compounds present in the chemical process, wherein the fourth A method of addin...
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JP2023508609A |
A system for producing needle coke and a method for producing needle coke using the system. The system comprises a coke chamber, a pressure stabilization tower, a buffer tank and a coking fractionation column. The tower top of the pressu...
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JP7216606B2 |
To provide a cleaning method capable of reducing adhesion of soil to a heat exchanger for preheating a crude oil during operation, and sufficiently and simply suppressing adhesion of soil to the heat exchanger for preheating a crude oil....
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JP7213132B2 |
To provide a cleaning method capable of reducing adhesion of soil to a raw material oil heat exchanger of a vacuum distillation apparatus during operation, and sufficiently and simply suppressing adhesion of soil to the raw material oil ...
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JP2023001071A |
To provide a hydrocracking method that can reduce and/or eliminate formation of a polycyclic aromatic compound.A method for hydrocracking a petroleum feedstock (1) comprises: a step of hydrocracking a feedstock; a step of performing an e...
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JP2022167091A |
To provide an agent supply method in a petroleum process that can efficiently prevent fouling and corrosion while suppressing corrosion in a subsequent facility in one aspect.A method for supplying a surfactant to a distillation facility...
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JP7162899B2 |
Methods for processing pyrolysis oil employs two or more of the following steps: A first separation creates (a) a lighter fraction and heavier fraction, (b) subjecting the lighter fraction to distillation and (c) subjecting the heavy fra...
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JP7141468B2 |
A catalytic distillation structure that may include a rigid framework having at least two grids with a plurality of horizontal fluid permeable tubes mounted to said grids to form a plurality of fluid pathways among the plurality of horiz...
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JP7104030B2 |
A process for vaporizing hydrocarbon feedstock comprising pressurizing the hydrocarbon feedstock using a hydrocarbon feedstock pump, preheating the hydrocarbon feedstock in a first heat exchanger and distilling the preheated hydrocarbon ...
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JP7092755B2 |
A process for steam cracking hydrocarbon feedstock in a steam cracking furnace, the process comprising superheating hydrocarbon feedstock using flue gas from a radiant section of the steam cracking furnace in hydrocarbon feedstock superh...
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JP7079852B2 |
This operating method for operating a device for distilling crude oil to produce a plurality of distillates is provided with: a design step for estimating the amount of water contained in the crude oil or the flow rate of each of a plura...
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