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JPH09220401A |
To increase the yield and production of the raffiniate without deteriorating the product by using a static mixer-type fixed lining at the upper part of an extraction tower instead of the stationary or rotary crown and disk. Close counter...
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JPH09176659A |
To provide a process by which oil-containing sludge produced from, e.g. an oil refinery can be purified to form a product in a recyclable state. This method comprises the step (I) of bringing oil-containing sludge S into contact with a s...
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JPH09157660A |
To automatically modify monitoring terms of a process to the optimum value according to the operating patterns in the process where the operational status of each apparatus change according to the grades of oils to be processed and the n...
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JP2611900B2 |
PURPOSE: To make a hydrocarbon oil containing a small amount of halogenated aromatic compounds safely handleable by removing the halogen compounds therefrom. CONSTITUTION: A hydrocarbon oil mainly consisting of nonaromatic hydrocarbon oi...
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JPH09125073A |
To dispose of carbon residues at low cost through such process that a thermally decomposed oil as solute discharged from the thermal decomposition tank of a liquefying equipment for waste plastic materials and a hydrocarbon oil as solven...
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JP2588772B2 |
Process for thermal cracking of residual hydrocarbon oils by 1) feeding the oil (1)(2) and a synthesis gas (14) to a thermal cracking zone (3), the gas having a temperature sufficiently high to maintain the temperature in the cracking zo...
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JPH08319488A |
To remove a hydrolyzable cation contained in a crude oil. This is a method of decreasing salt concn. of hydrolyzable metal cation chloride salt in a crude oil and comprises the following processes: a. a process of mixing a crude oil cont...
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JPH08319486A |
To remove arom. hydrocarbons from a hydrocarbon vapor stream contg. arom. hydrocarbons by contacting a hydrocarbon vapor stream with an extracting solvent which selectively dissolves arom. hydrocarbons in an extractive distillation colum...
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JPH08269470A |
PURPOSE: To efficiently remove an aldehyde from a hydrocarbon gas comprising an olefin as the main component and a trace amt. of the aldehyde by bringing the hydrocarbon gas into contact with an aq. soln. of a specific compd. CONSTITUTIO...
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JP2540046B2 |
In preparing alkanesulphonic acids by sulphoxidation of n-paraffins containing between 12 and 18 carbon atoms, using UV radiation to initiate the reaction (light-water process), a mixture is obtained which spontaneously allows a substant...
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JPH08508759A |
PCT No. PCT/GB94/00099 Sec. 371 Date Sep. 14, 1995 Sec. 102(e) Date Sep. 14, 1995 PCT Filed Jan. 19, 1994 PCT Pub. No. WO94/17155 PCT Pub. Date Aug. 4, 1994A treatment of waste petroleum (60,70) is disclosed by decoupling association of ...
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JPH08231965A |
PURPOSE: To economically obtain in high yield stably over a long period low- impurity vacuum-distilled desulfurized light oil and deasphalted oil. CONSTITUTION: This hydrogenation treatment process is made up of the following consecutive...
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JP2527949B2 |
Hydrocarbon oils, particularly petroleum oils, more particularly lube, transformer, white oil and other specialty oils can be extracted to remove aromatic hydrocarbon components therefrom using a combination polar extraction solvent, suc...
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JP2526382B2 |
A process for the recovery of aromatic nitrogen-containing compounds from an oily substance is disclosed which comprises extracting an oily substance containing aromatic nitrogen-containing compounds with a solvent containing water and a...
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JP2525409B2 |
A process for deasphalting a heavy hydrocarbon feedstock, comprising two stages of precipitation from the feedstock of an asphaltene fraction alone or, alternatively, of a resin fraction along with the asphaltene fraction, by means of a ...
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JPH0892569A |
PURPOSE: To obtain a regenerated oil usable to be blown into the tuyere of a blast furnace with a slurry pump by recovering a waste mineral oil, fractionating into a heavy viscous oil and a light viscous oil by a primary distillator, fra...
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JPH0853435A |
PURPOSE: To inhibit the oxidation and polymerization of a furfural derivative by adding a dialkylphenylenediamine to the furfural derivative as an inhibitor. CONSTITUTION: An inhibitor expressed by the formula (R1 and R2 are each a 2-4C ...
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JPH08789B2 |
This invention relates to an energy efficient process for the solvent extraction of aromatic hydrocarbons from hydrocarbon streams containing the same, using as the solvent ethyl acetoacetate. This solvent may be recovered from the aroma...
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JPH07110818B2 |
Mixtures of C12-C18 n-paraffins with paraffinsulphonic acids having the same number of carbon atoms, water and sulphuric acid, and obtained by sulphoxidation of said paraffins with SO2 and O2 in the presence of water and UV radiation are...
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JPH07108892B2 |
Mixtures of C12-C18 n-paraffins with paraffinsulphonic acids having the same number of carbon atoms, water and sulphuric acid, and obtained by sulphoxidation of said paraffins with SO2 and O2 in the presence of water and UV radiation are...
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JPH07286183A |
PURPOSE: To obtain light products of high quality by deasphalting a residual hydrocarbon oil and then, subjecting the deasphalted oil to thermal, cracking to efficiently carry out the conversion of the residual hydrocarbon oil. CONSTITUT...
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JPH0798947B2 |
A process for the separation of solvents from hydrocarbons dissolved in said solvents by contacting a feed solution (e.g. obtained from a dewaxing unit) comprising hydrocarbons dissolved in an aromatic solvent and a polar aliphatic solve...
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JPH0798799B2 |
N-methyl pyrrolidone solvent used to extract aromatic components from lubricating oil distillates is purified by contacting the solvent with activated alumina.
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JPH07507963A |
(57) [Summary] Since this publication is application data before electronic filing, summary data is not recorded.
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JPH0781149B1 |
A solvent extraction process for separating a heavy hydrocarbon feedstock material into its various component parts. The process comprises the utilization of pressure reduction to enhance the separation and recovery of a deasphalted oil ...
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JPH0765053B2 |
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JPH0756034B2 |
In a deasphalting process wherein the deasphalted oil is separated from the deasphalting solvent, the invention consists of performing said separation in at least two separate steps, differing by their temperatures, and of recovering hea...
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JPH0724210A |
PURPOSE: To efficiently treat various waste liquors from an oil refinery in a simple process at a low running cost. CONSTITUTION: A chlorine dioxide soln. is added to oil-contg. waste liquor from an oil refinery, they are brought into a ...
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JPH06329651A |
PURPOSE: To provide a processes for inhibiting oxidation and polymerization of furan compounds in preparation, storage or use by adding phenylenediamine or naphthalenediamine. CONSTITUTION: By introducing an effective amount of a compoun...
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JPH0680019B2 |
A method is disclosed for the separation of aromates from hydrocarbon mixtures employed as entry products, by means of extractive distillation, employing as selective solvent N-substituted morpholine, the substitutions of which display n...
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JPH06279771A |
PURPOSE: To purity an oil by securely removing noxious substance therefrom, reuse the product and reduce the formation of soot. CONSTITUTION: An extract of a plant such as wood, bamboo, grass, algae or seaweeds, a fine powder thereof (in...
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JPH06262004A |
PURPOSE: To remove oily material economically from an oily substrate containing water and its emulsion and the like by producing a phase differentiating interface in the presence of a comminuting surfactant through bringing the oily subs...
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JPH0645557B2 |
@ This invention relates to a low energy process for the solvent extraction of aromatic hydrocarbons from hydrocarbon streams containing the same, using as the solvent N-cyclohexyl-2-pyrrolidone together with small amounts of water. This...
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JPH0644534B2 |
Method for replacing a coolant containing PCB in electrical induction having a tank containing the PCB-containing coolant and an electrical winding and porous solid cellulosic electrical insulation immersed in the PCB-containing coolant ...
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JPH0635398B2 |
A process is disclosed for the separation of an aromatic hydrocarbon from a hydrocarbon mixture of varying aromatic content, by means of extractive distillation, employing as a selective solvent, an N-substituted morpholine, wherein the ...
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JPH06116570A |
PURPOSE: To obtain a low-aromatic hydrocarbon ail, excellent in light fastness and useful as cleaning solvents, insecticides, etc., and scarcely containing aromatics by hydrotreating a petroleum distillate under specific conditions in tw...
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JPH06503599A |
Raffinate yield from solvent extraction is improved when the extract phase recovered from the solvent extraction process is subjected to a membrane separation step wherein a saturates/1-ring aromatics rich retentate is produced and a 2+ ...
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JPH0613714B2 |
Process for deasphalting a hydrocarbon charge by means of a deasphalting solvent. The charge (1) is introduced, at 100 DEG -200 DEG C., in admixture with a deasphalting solvent (3and 4), into a settler (7). The deasphalted oil (24) is se...
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JPH0613713B2 |
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JPH0613715B2 |
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JPH0640957A |
PURPOSE: To efficiently separate a specified hydrocarbon feed stream into an aromatics lean raffinate stream useful for stock of lubricating oil, etc., and an aromatics rich extract stream by bringing the feed stream into contact with a ...
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JPH0641558A |
PURPOSE: To provide an essentially non-carcinogenic light lubricant and its preparation. CONSTITUTION: The preparation comprises a step to blend an effective amount of an essentially non-carcinogenic hydrocarbon having an antifrictional ...
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JPH0625692A |
PURPOSE: To improve a purification method of using amorphous adsorbent by solving a soap leaching problem without using filtration before vacuum bleaching step. CONSTITUTION: An improved purification solves soap leaching problem by a pro...
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JPH06500354A |
A process for separation and removal of stable polycyclic aromatic dimer foulants from refinery process streams by blending a paraffinic stream with a portion of heavy effluent from a hydrocracking reactor to induce precipitation of foul...
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JPH0578599B2 |
A process is disclosed for the solvent dewaxing of wax containing hydrocarbon oils, preferably waxy petroleum oils most preferably waxy lubricating or transformer oils. The process employs methyl tertiary butyl ether as the dewaxing solv...
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JPH05279674A |
PURPOSE: To treat an oil stained by sulfur compds., such as a high-boiling, heavy residual fuel, with an effective sweetening amt. of a specific quaternary ammonium ion compd. to remove the sulfur compds. and thus to treat the oil effect...
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JPH0572438B2 |
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JPH05239469A |
PURPOSE: To provide a process for selectively and efficiently separating arom. hydrocarbons from a mixture of hydrocarbons without addition of a surfactant. CONSTITUTION: An O/W emulsion obtd. by dispersing a liquid mixture of hydrocarbo...
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JPH0556397B2 |
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JPH05202367A |
PURPOSE: To obtain a desulfurized and denitrated light oil having a low particulate content and high cetane number according to simple operation without using an apparatus for hydrodesulfurization by extracting a light oil in a nitrogen-...
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