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JPH06157015A |
PURPOSE: To obtain a pitch for carbonaceous materials having a high carbon yield without increasing the softening point by removing a component soluble in an aqueous solution of an alkali from a mixture containing one or more of coal tar...
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JPH0637622B2 |
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JPH0633361B2 |
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JPH06501722A |
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JPH0625691A |
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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JPH0583595B2 |
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JPH0470354B2 |
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JPH0448837B2 |
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JPH04146994A |
PURPOSE: To improve the ignitability and flammability of a fuel oil by sinking a specified hydrophilic bag in a light fuel oil and making absorbed and removing moisture present in the oil. CONSTITUTION: A hydrophilic bag contg. a water-a...
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JPH03217490A |
PURPOSE: To inexpensively, readily and efficiently recover arsenic without eroding a device by bringing an arsenic-containing hydrocarbon into contact with an aqueous solution of water solution sulfide and then separating the resultant w...
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JPH03143993A |
PURPOSE: To economically and practically remove oxygen from a hydrocarbon fuel and to improve thermal stability of the hydrocarbon fuel by a constitution wherein a strong reducing agent is continuously introduced into the hydrocarbon fue...
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JPH0390173A |
PURPOSE: To obtain dehalogenizing agent convenient to handle, hard to oxidize nor hydrolyze by containing respectively specific amount of specific alkaline metal alcoholate, alcohol, specific polyether and non-halogen hydrocarbon oil. CO...
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JPH0323588B2 |
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JPH0232208B2 |
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JPH0214714A |
PURPOSE: To efficiently remove org. sulfur compds. by absorbing and removing mainly CS2 in a first stage from a gas contg. CS2 and COS, then decomposing COS in a second stage, and absorbing in a third stage H2S generated in the second st...
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JPH0214713A |
PURPOSE: To efficiently remove org. sulfur compds. in gas by bringing the gas into contact with a catalyst supporting diglycolamine to decompose the org. sulfur compds. and by absorbing and removing H2S produced by the decomposition. CON...
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JPH01304026A |
PURPOSE: To selectively remove H2S from a fluid mixture contg. the H2S and CO2 at need by treating the fluid mixture with an aq. soln. contg. high purity triethanolamine. CONSTITUTION: The fluid mixture is treated by the aq. soln. contg....
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JPH01275692A |
PURPOSE: To remove ash from a waste engine oil by making use of a simple apparatus to regenerate the waste engine oil as a fuel oil, by conducting a particular reaction of a waste engine oil in a batch reaction tank, roughly separating t...
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JPH01271487A |
PURPOSE: To attain effective utilization of resources and obtain a regenerated oil with a high utility value, by a process comprising simultaneously adding phosphoric acid and a particular anionic surfactant or a nonionic surfactant to w...
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JPH0144237B2 |
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JPH01201391A |
PURPOSE: To improve the yield of extraction, by adding an alkaline soln. to a tar acid-contg. hydrocarbon oil and conducting mixing and centrifugation to separate an alkaline tar acid soln. CONSTITUTION: A tar acid-contg. hydrocarbon oil...
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JPH01135896A |
PURPOSE: To remove organic acids and inorganic salts and prevent a purifier from corrosion, by bringing an oil with a high total acid value into contact with a mixture solution of an organic amine or ammonia, alcohol and water. CONSTITUT...
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JP01113492A |
PURPOSE: To improve the thermal stability of jet fuel sweetened by catalytic oxidation by washing the fuel with an aq. caustic alkali, then washing with water and drying the same. CONSTITUTION: The jet fuel is sweetened by prewashing the...
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JPS6470592A |
PURPOSE: To inexpensively sweeten petroleum distillate by a catalyst with high activity and stability by separating and recirculating an alkaline phase containing the catalyst at a separation region after passing petroleum through a reac...
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JPH0113516B2 |
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JPS63503547A |
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JPS6352078B2 |
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JPS63213593A |
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JPS63159493A |
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JPS6332836B2 |
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JPS6328117B2 |
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JPS6315886A |
PURPOSE: To obtain the title neutralizing agent having excellent transfer characteristics into the precondensation section of distillation equipment of a petroleum refinery and an excellent effect of controlling corrosion, by using a spe...
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JPS62253690A |
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JPS62250091A |
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JPS62220586A |
PURPOSE: To desulfurize a methylnaphthalene oil of tar type in high desulfurization ratio and in high yield, by heating at a specific temperature the methylnaphthalene oil of tar type from which nitrogen-containing compounds are removed ...
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JPS62192179A |
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JPS62164790A |
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JPS62132507A |
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JPS62128920A |
PURPOSE: To obtain an inexpensive alkalifying agent capable of efficiently neutralizing oil, waste liquor or the like having high specific gravity, hardly injuring the human body and easy to handle by mixing powder of an inorg. compound ...
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JPS62106987A |
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JPS6217388Y2 |
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JPS6146517B2 |
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JPS61500442A |
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JPS615512B2 |
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JPS60186588A |
PURPOSE: Sodium metal is added to tar oil containing impurities such as quinolines and they are heat-treated or the tar oil is distilled in the presence of sodium metal to effect selective hydrogenolysis of sulfur and nitrogen compounds....
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JPS60161482A |
PURPOSE: To separate and fractionate the acidic oil and basic oil in liquefied coal oil, remarkably improving the separation selectivity of each component existing in these oils, by dissolving and extracting the acidic oil and basic oil ...
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JPS60156593A |
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JPS6092390A |
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JPS5946554B2 |
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JPS59179588A |
PURPOSE: To obtain easily a naphthenic lubricating oil having a high viscosity and low acid value, by neutralizing a naphthenic crude oil, etc. fully with an excess aqueous solution of caustic alkali, and distilling the resultant treated...
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