33 results about "Petroleum as fuel" patented technology

It is a purpose of this invention to accurately measure the properties of petroleum and petroleum fractions from a small volume of sample oil in a short period of time with less cost and energy for the analysis by vaporizing and distilling the respective components contained in the sample to be measured by a distillation apparatus. The components in the sample oil are first separated and vaporized by the distillation apparatus and the boiling point distribution of the respective components is measured. The property estimation means is equipped with a property estimation model for evaluating the property estimate value outputted from the property estimation model. The method is incorporated into standard or otherwise any distillation test apparatus to provide accurate measure of the thermodynamic and transport properties of undefined multicomponent mixtures such as crude oil, petroleum fractions, gas condensates and the like.

A robust, non-aqueous, and oil-soluble organic peroxide oxidant is employed for oxidative desulfurization and denitrogenation of hydrocarbon feedstocks including petroleum fuels. Even at low concentrations, the non-aqueous organic peroxide oxidant is extremely active and fast in oxidizing the sulfur and nitrogen compounds in the hydrocarbon feedstocks without catalyst. Consequently, the oxidation reactions that employ the non-aqueous organic peroxide oxidant take place at substantially lower temperatures and shorter residence times than reactions in other oxidative desulfurization and denitrogenation processes. As a result, a higher percentage of the valuable non-sulfur and non-nitrogen containing components in the hydrocarbon feedstock are more likely preserved with the inventive process. Desulfurization and denitrogenation occur in a single phase non-aqueous environment so that no phase transfer of the oxidant is required.

Disclosed is a melt processible semicrystalline fluoropolymer comprising: (a) about 2 to about 20 weight percent of repeating units arising from hexafluoropropylene; (b) about 0.001 to about 1 weight percent of repeating units arising from a hydrocarbon monomer having a carboxyl group and a polymerizable carbon-carbon double bond; and (c) the remaining weight percent of repeating units arising from tetrafluoroethylene. This melt processible semicrystalline fluoropolymer is impermeable to fuels and is useful as a lining for petroleum fuel tubing, as well as chemical resistance coating for, or adhesive between, perfluoropolymer and other polymers, metals and inorganics.

This handling relates to the effective storage and blending of biodiesel with petroleum fuel. More specifically, the processing relates to blending biodiesel with petroleum based diesel fuel stocks in cold weather without shock crystallization.

The invention provides a methanol gasoline and a preparation method thereof. The methanol gasoline is prepared from methanol, cyclohexane, methyl ether, antiseptic and petroleum ether and has the characteristics of great power, small pollution emission, low cost and a cheap price; moreover, the methanol gasoline is simple to prepare, does not discharge harmful substances, is environment-friendly and can be mixed with a petroleum fuel for use; and in mixed use with the petroleum fuel, the methanol gasoline can improve the performance and quality of the petroleum fuel and reduce emission of main pollution sources like carbon monoxide and oxynitride.

The invention relates to a method of and a system for quantitative determination of sodium in petroleum fuel, such as heave fuel oil. The method comprises determining a concentration of sodium in the petroleum fuel using NMR. The method advantageously comprises determining sodium in the form of sodium isotope 23Na by performing at least one NMR measurement on at least a part of the petroleum fuel, obtaining at least one NMR spectrum from the NMR measurement(s) and performing the quantitative determination of sodium based on the NMR spectrum, where the result is compared to calibration data comprising NMR—determinations on petroleum fuels with known sodium concentration.

The invention relates to a toxicity detection method, in particular to the method for detecting the toxicity of fuel oil. Every nation has different kinds of automobile alternative fuel technology, but has the same aims of preventing the exhaustion of the oil fuel and reducing the pollution of automobile emission to the environment. At present, in a plurality of automobile alternative fuels, methanol gasoline and ethanol gasoline attract much attention, and are proved to be well used for the fuel oil of automobiles in actual application; however, the safety of the methanol gasoline and the ethanol gasoline in using processes is a question. Researches on the toxicity of the methanol gasoline and the ethanol gasoline are reported frequently; however, the researches on the direct detection of the toxicity of the gasoline, the methanol gasoline and the ethanol gasoline with luminous bacteria are not reported. The invention provides the method for detecting the toxicity of the fuel oil, which can be used for conveniently detecting the toxicity of the fuel oil.

A method for dispensing liquefied fuel, the method including: providing a non-petroleum fuel as a liquefied fuel to a storage tank; increasing pressure of the liquefied fuel to a target pressure usinga pump disposed within the storage tank, wherein a first portion of the liquefied fuel is bypassed around or at least partially around a heat exchanger, and a second portion of the liquefied fuel isdischarged to the heat exchanger, wherein the heat exchanger is configured to warm the second portion of the liquefied fuel. A dispenser is provided that incorporates a control system that allows coordinated fueling of one or more vehicles simultaneously, where the heat exchanger uses only the fuel itself without external refrigeration to manage final dispensing temperature and the fueling stationdoes not include a storage subsystem disposed between the pump and the dispenser.

The present invention relates to a process for reducing sulfur content in petroleum fuel, such as diesel fuel, and raising the Cetane Number to a value above 50.

The invention provides a magnetic core-shell structure carbon material as well as a preparation method and application thereof in desulfurization. The method comprises the following steps: preparing nitrogen-doped magnetic nanoparticles by adopting solvothermal, dispersing the nitrogen-doped magnetic nanoparticles in a carbon source solution for high-pressure heating reaction, roasting in a nitrogen atmosphere to obtain a magnetic core-shell structure carbon material, and further performing alkali active agent pore-forming on the material. The magnetic core-shell structure carbon material has a complete core-shell structure, a large specific surface area, an amorphous form and good stability, multiple metal active sites are exposed after activation at a high temperature, and the adsorption capacity and selectivity of an adsorbent to aromatic sulfides are significantly enhanced; and when being used as a desulfurization adsorbent for desulfurization, the adsorbent has the advantages of high adsorption rate, high desulfurization efficiency, good regeneration performance and easiness in recovery, especially has better desulfurization efficiency for thiophene sulfides in petroleum fuels, and has wide application prospects.

A sorbent composition comprising a vanadium compound and a TiO2 support material is disclosed. Methods of making and using the composition to remove heavy metals or heavy metal containing compounds from a fluid stream are also provided. Such methods are particularly useful in the removal of mercury and mercury compounds from flue gas streams produced from the combustion of hydrocarbon-containing materials such as coal and petroleum fuels.

The invention discloses automatic treatment equipment for the outer surface of a petroleum fuel storage tank. The automatic treatment equipment comprises a main machine body, a mixing cavity is formedin the main machine body, the mixing cavity is used for containing paint, a rotating rod is rotationally arranged in the mixing cavity, a stirring rod is fixedly arranged on the left side surface ofthe rotating rod, the stirring rod is used for stirring the paint in the mixing cavity, a fan cavity is formed in the right side of the mixing cavity, the right side wall adopts an opening design, external air flow can enter the fan cavity, the whole equipment can be adsorbed on the outer surface of the petroleum fuel storage tank through an electromagnetic adsorption block, and meanwhile, duringrepairing, automatic grinding work can be conducted on the to-be-repaired position through a grinding disc, so that the surface of the to-be-repaired position is smooth, paint attachment is facilitated, after automatic grinding of the grinding disc is completed, the paint can be automatically and evenly smeared through a smearing disc, the two functions are integrated on one equipment, and the functionality and practicability of the equipment are greatly improved.

The present invention relates to an ethylalcohol-diesel oil mixed fuel. Said mixed fuel contains (wt%) 5-30% of ethyl alcohol, 60-90% of light diesel oil and 5-10% of methyl ester. Said fuel can be stored for a long period of time, can not be demixed, can be used in diesel engine, and can reduce the smoke degree of diesel engine by 30-80% under the condition of no implementing any regulation, andcan be substituted for petroleum fuel.

A fuel supply method and circuit including at least one flow-rate regulating valve is provided at a return pipe for returning excess return fuel from a combustion chamber side. During the combustion operation, the fuel from the supply pipe is supplied to a fuel injection nozzle with the return pipe closed or restricted to a predetermined opening degree and the back pressure of the return pipe raised by at least one flow-rate regulating valve. The fuel is supplied to the fuel injection nozzle as being pressurized by the return back pressure, so that the fuel injection nozzle supplies to the combustion chamber the fuel that has been heated to a high-temperature. The return fuel is circulated from the return pipe directly through the supply pipe, and mixed in a sub-tank with low-temperature fuel from a fuel tank. The mixed fuel is supplied to the fuel injection nozzle.

The invention relates to a fluid bypass method and system for controlling the temperature of a non-petroleum fuel. The fluid bypass method includes: providing a fuel at a pressure sufficient to effecta desired flow rate to a vehicle, the fuel being at a liquid or substantially supercritical thermodynamic state requiring further heat addition in a vaporizer; and diverting a bypass stream with partial or no vaporization to a heat exchanger as a cold fluid on a cold side of the heat exchanger. The method further includes providing a remainder stream of the fuel to the vaporizer; mixing the remainder stream outflowed from the vaporizer with the cold fluid outflowed from the cold side of the heat exchanger to form a combined fuel stream; and providing the combined fuel stream to the heat exchanger as a warm fluid on a warm side of the heat exchanger.

Disclosed herein are methods for correcting fuel oil compositions having excess conductivity. The oil compositions comprise a Petroleum Based Component, a Conductivity additive and a Conductivity Correcting Additive.

There is disclosed a wet-processing method for combustion ashes of petroleum fuels, comprising a slurry preparation step of preparing a slurry of the combustion ashes; a metal oxidation step of preparing a slurry containing ammonium metavanadate; a solid / liquid separation step of removing solids from the slurry containing ammonium metavanadate; a double decomposition step for ammonium sulfate, of adding a magnesium compound to an aqueous ammonium sulfate solution recovered from the solid / liquid separation step; and an ammonia recovery step of recovering ammonia from a reaction solution recovered from the double decomposition step. The above metal oxidation step is conducted while controlling an ammonium sulfate concentration of the aqueous solution to 20 to 45% by weight and the temperature of the aqueous solution to not more than 50° C., and the above solid / liquid separation step is conducted using a specific solid / liquid separator while controlling the temperature of the slurry to not more than 40° C. The above wet-processing method is an industrially useful and simple process capable of readily recovering vanadium from combustion ashes which is suitably used, in particular, in such a case where the amount of combustion ashes to be treated is relatively small or where the combustion ashes have a less carbon content and a high vanadium content.

The invention discloses a permanent magnet actuating device which comprises a stator, a rotor, a rotating shaft and a machine base. The permanent magnet actuating device is characterized in that the stator or the rotor is composed of one or more sets of magnetic arrays formed by permanent magnets which are arranged at intervals according to a certain rule, and the magnetic arrays have attractive force and repulsive force in the tangential direction; the rotor or the stator is composed of one or more sets of radial permanent magnet bars, and the directions of the N poles or the S poles of each set of permanent magnet bars are determined in a unified mode; the permanent magnet bars of the rotor or the stator have a specific length so that the permanent magnet bars can enter the magnetic arrays of the stator or the rotor. According to the permanent magnet actuating device, the magnetic force of the permanent magnets can be converted into power cyclically under the condition that external energy is not consumed. In addition to publicly known advantages, the permanent magnet actuating device also has the remarkable and positive advantage of being capable of forming a large, medium or small-sized power device and a large, medium or small-sized power generation device so as to be widely applied to all fields such as industrial and agricultural production, communication and transportation and daily life of people. The power generating and heating mode with coal and petroleum as fuel will be replaced step by step, and haze will no longer rampage.

The invention relates to the field of renewable energy sources and particularly discloses a method for preparing a jet fuel through hydrogenation of hydrogen counter flow grease. The method comprisesthe following steps: (1) enabling the biological renewable grease to be in contact with a hydrotreatment catalyst to implement primary hydrotreatment under the existence of hydrogen, so as to obtain refined oil; (2) enabling the refined oil to be in contact with a heterogeneous catalyst under the existence of hydrogen to implement secondary hydroisomerization visbreaking treatment, distilling andseparating, so as to obtain the jet fuel, wherein the hydrotreatment conditions in the step (1) are as follows: the partial pressure of hydrogen is 6.0-8.0 MPa, the volume ratio of hydrogen to oil ranges from 1200:1 to 1800:1, the liquid hourly mass space velocity is 1h<-1> to 2h<-1>, and the reaction temperature is 380-450 DEG C, and the secondary hydroisomerization visbreaking treatment in the step (2) are as follows: the partial pressure of hydrogen is 6.0-8.0 MPa, the volume ratio of hydrogen to oil ranges from 1200:1 to 1500:1, the liquid hourly mass space velocity is 1h<-1> to 2h<-1>, and the reaction temperature is 280-320 DEG C. The performances (mainly flashing point, freezing point and combustion heat) of the jet fuel prepared through the method are close to that of the petroleumfuel, and meet ore even exceed the key specification of the aviation fuel, and the yield is also up to about 25%.

An object of the invention is to provide a catalyst capable of reducing both the black smoke quantity and the NOx quantity in exhaust gases. This invention provides, in a catalyst oxide for changing quality of fuel arranged between a petroleum fuel tank and a combustion chamber of the engine, a catalyst oxide for changing quality of fossil fuel, said catalyst oxide having, as main components, cerium oxide, zirconium oxide, thorium oxide, magnesium oxide and clay, comprising a ceramics catalyst oxide for subjecting petroleum fuel having said main components reduction-sintered to contact decomposition, and a catalyst oxide containing platinum·rhenium or palladium.

The invention discloses the use of the product of the low-temperature gasification of liquid dimethyl ether, which is characterized in that: the dimethyl ether gas product of the low-temperature gasification of the liquid dimethyl ether can be used in place of petroleum as fuel gas for vehicles and ships; and the heat flow generated at the same time can be used as a cold source for generating cold energy and ice. The invention has the advantages of little pollution and clean energy.