25 results about "Gasoline" patented technology

The invention relates to the selection of new hydrotreating catalyst, in order to solve existing porous metal carrier catalyst uneven bearing and looseness issue, putting forward a plating method to make the catalyst with carrier activenss on the porous metal carrier. The catalyst is even in active element distribution, fast in bearing, fine in heat conductivity and catalyst feature, simple in making, easy for realization, applicable for distillate hydrogenation, furfuraldehyde, alkyne and dienerite selective hydrogenation and all kinds of alike reations.

The invention relates to an aromatic hydrocarbon extraction method which comprises an extraction tower. The method is characterized in that a raffinate oil product is directly recovered from the top of the extraction tower; the bottom of the extraction tower is connected with a stripping tower through a pipeline; washing water enters the extraction tower from the top of the extraction tower; the top of the stripping tower is respectively connected with the bottoms of a feed tower and the extraction column through pipelines; the bottom of the stripping tower is connected with a recovery tower through a pipeline; aromatic hydrocarbons from the top of the recovery tower are directly discharged out of the device; and the bottom of the recovery tower is connected with the upper part of the extraction tower. Compared with the common aromatic hydrocarbon extraction processes, the extraction method provided by the invention has the advantages of high product quality, low investment and land saving. The method can treat diversified raw materials, and can treat reformed gasoline and ethylene cracked gasoline. The extraction tower has the functions of extracting aromatic hydrocarbons and washing raffinate oil with water.

The invention discloses a wear-resistant heavy oil catalytic cracking catalyst capable of reducing sulfur content of gasoline. Based on the total mass of the catalyst, the wear-resistant heavy oil catalytic cracking catalyst comprises not less than 15 mass percent of mullite, 0.05-20 mass percent of vanadium in terms of vanadium element and 15-50 mass percent of Y-type molecular sieve. The wear-resistant heavy oil catalytic cracking catalyst is prepared by taking mullite microspheres, which are synthesized at low temperature by taking a large amount of vanadium-containing compound as a phase change auxiliary agent, as a raw material, performing in-situ crystallization on the microspheres to synthesize a NaY molecular sieve, modifying and exchanging. The wear-resistant heavy oil catalytic cracking catalyst has rich middle pores and macropores, is strong in wear resistance, can reduce the sulfur content of the gasoline in a catalytic cracking process and has an excellent heavy oil cracking function.

The invention provides a preparation method of a corrosion inhibitor of methanol gasoline, and belongs to the technical field of metal corrosion protection. The preparation method comprises steps as follows: alpha-methylstyrene dimer, maleic anhydride, dicumyl peroxide and dimethylbenzene are added into a reactor, and then, the mixture is heated in an atmosphere of nitrogen for reacting; after the mixture is cooled to the room temperature, octadecanol, polyethylene glycol, p-toluenesulfonic acid, n-butyl alcohol and ethyl acetate are added, the mixture is heated for reacting and then cooled to the room temperature, and a mixture I is obtained; the mixture I is washed with a sulfuric acid aqueous solution, then washed with an NaOH aqueous solution and finally washed with an aqueous solution, and a mixture II is obtained; and benzotriazole, 2, 6-tert-butyl-4-methyl phenol, hexamethylene tetramine, ethanol, propargyl alcohol, trimellitate, a surface active agent and a combustion improver are added into the mixture II and uniformly stirred, and the corrosion inhibitor is obtained. The provided methanol gasoline has good solubility with various oils, the additive amount is small, and the corrosion-resistant effect is superior to that of a similar product.

A technology for reversion of FCC fraction of gasoline and simultaneous production of lower carbon alkene consists of preheating FCC fraction of gasoline to the reaction temperature, then entering the reactor filled with accelerating agent of modified zeolite molecular sieve to perform gasoline reversion reaction, cooling the reaction product to apply gas-liquid separation, in which the liquid product is modified gasoline and the lower carbon alkene product is obtained by separating gas product. The accelerating agent of modified zeolite molecular sieve is obtained by processing the zeolite molecular sieve at 600-850 DEG C with aqueous vapor for 1-24 hours. The invention has advantages that it can not only solve the problem of reduction of alkenes from FCC gasoline but also can substantially increase the product with a high added value including ethane and propylene, and the economic process technology is good.

A method for preparing clean diesel oil form inferior diesel oil comprises the following steps: carrying out an aromatic hydrocarbon extracting treatment on inferior diesel oil so as to obtain raffinate oil rich in saturated hydrocarbon and extract oil rich in polycyclic aromatic hydrocarbon, carrying out a hydrogenation refining treatment on the raffinate oil, subjecting the hydrogenation refining reaction product to a fractionation treatment, taking the fraction below 180 DEG C as the gasoline blending component and the fraction above 180 DEG C as the clean diesel, carrying out a hydrogenation modification treatment on the extract oil rich in polycyclic aromatic hydrocarbon, mixing the hydrogenation modification reaction product with inferior diesel oil, and then carrying out an aromatic hydrocarbon extracting treatment on the mixture for another time. The method adopts a combined technology to process inferior diesel oil, and can produce diesel oil, which meets the diesel oil standards and has a low sulfur content and a high cetane value.

The present invention relates to a gasoline environmental-protection and energy-saving additive and an environmental-protection and energy-saving gasoline, and belongs to the energy source cleaning technology. The gasoline environmental-protection and energy-saving additive is characterized by comprising by weight: 0.003-0.005 part of biological enzyme, 0.001-0.003 part of a coenzyme preparation, 0.2-0.4 part of a plant extract, and 35-45 parts of a petroleum distillate adopted as a carrier. According to the present invention, with the gasoline environmental-protection and energy-saving additive, the gasoline viscosity can be reduced so as to make the gasoline become the oxygen-rich fuel, the burnout characteristic and the low oxygen combustion performance of the gasoline can be improved, and the emissions of the nitrogen oxides, the sulfur oxides and the hydrocarbons after the gasoline combustion can be reduced.

The invention discloses a diesel-engine-driven self-priming pump and a control protection method, and belongs to the technical field of self-priming pumps. The problem that an existing traditional gasoline or diesel engine driven water pump lacks the protection measure is solved. A diesel engine, a vacuum suction device and a centrifugal pump are sequentially arranged on a base, a flywheel of thediesel engine is connected with one end of a transmission shaft of the vacuum suction device through a clutch, a thrust device is arranged on the clutch, the thrust device is used for driving the clutch, the other end of the transmission shaft of the vacuum suction device is connected with a pump shaft of the centrifugal pump, the centrifugal pump communicates with a water source through a pump inlet pipeline, a pressure chamber body is arranged on the vacuum suction device, and communicates with a suction chamber body through an air guide pipe, the suction chamber body communicates with the pump inlet pipeline, and an electric control cabinet is electrically connected with the diesel engine, the thrust device and the vacuum suction device. According to the diesel-engine-driven self-priming pump and the control protection method, the self-priming pump state can be automatically monitored, and the failure to the self-priming pump due to high temperature or low temperature can be avoided.

The invention discloses an environment-friendly gasoline engine particle trap. The environment-friendly gasoline engine particle trap comprises a trap body and exhaust pipes connected to the two ends of the trap body, the exhaust pipes are fixed to limiting moving mechanisms, the limiting moving mechanisms are driven by a bidirectional driving mechanism to move synchronously, the bidirectional driving mechanism comprises a screw rod and a driving part driving the screw to rotate, threaded sections with opposite rotating directions are arranged at the two ends of the screw rod, each limiting moving mechanism comprises a clamping mechanism and a limiting piece which are rotationally matched, and sliding blocks matched with the corresponding threaded sections are arranged on the limiting pieces; and the limiting moving mechanisms are arranged in corresponding guide pipes, guide grooves are formed in the guide pipes, each guide groove comprises a linear section and a spiral section which are connected, guide rods matched with the guide grooves are arranged on the clamping mechanisms, lock catches are arranged on the clamping mechanisms, unlocking pieces used for releasing the clamping mechanisms from clamping the exhaust pipes after the exhaust pipes are connected with the trap body are fixed beside the screw rod, and the unlocking pieces are matched with the lock catches. The trap has the advantages of being reasonable in structure, convenient to position and install and capable of improving installation efficiency.

The invention relates to methanol fuel security additive. Its components weight percentages are as follows: disperse brilliant blue 40-45%, spirit light fast blue 45-50, and methanol 10%. The invention also discloses the method used to add the additive into the methanol fuel. After adding the security additive, the methanol fuel can be changed from colorless to blue to know from gasoline and diesel oil to make people easily identify. In addition, it will not affect car dynamic performance, accelerating ability, pollutant discharging, and fuel consumption etc.

The invention provides a lubricating system for a double-stroke gasoline engine which comprises a cylinder, an oil pump and an oil tank. The oil pump is connected with the oil tank by an oil tube. The oil pump is connected with a crank shaft of the double-stroke gasoline engine by a gear pair. The oil pump is connected with an oil dividing box by an oil transportation tube. The oil dividing box is communicated with a plurality of oil holes on the cylinder by a plurality of oil supply tubes. An oil ring is arranged under a gas ring on the periphery of a piston in the cylinder. The oil pump and the gear pair are replaced by a diaphragm pump. An air inlet of the diaphragm pump is communicated with a crank shaft tank of the double-stroke gasoline engine by an air tube. An oil inlet of the diaphragm pump is communicated with the oil tank by the oil tube and an oil outlet is communicated with the oil dividing box by the oil transportation tube. The invention has reasonable structure, overcomes the shortcomings that the discharging effect is inferior due to the oil and gasoline mixture in the prior art, ensures the standard discharge of the double-stroke gasoline engine, and promotes the power and the service life of the double-stroke gasoline engine.

The invention relates to a gasoline mechanism, in particular to an engine oil oil-way system of a gasoline engine which comprises an engine box of the gasoline engine, wherein a crankcase used for accommodating a crankshaft is arranged in the middle of the engine box; a piston cylinder is arranged at the upper part of the crankcase; a cam cavity used for accommodating a timing gear, a driven gear and a cam, and an oil tank used for accommodating engine oil are arranged on the lateral face of the crankcase; the cam cavity is communicated with the oil tank through an oil pipe; the shaft end of the crankshaft penetrates through the cam cavity; a radial oil receiving hole is formed in the outer surface of a main journal of the crankshaft, and the main journal is arranged in the cam cavity; an oil passage is formed in the crankshaft in the axial direction; one end of the oil passage is communicated with the oil receiving hole, and the other end of the oil passage is arranged at the lower part of a connecting journal, and is communicated with the crankcase; an oil pipe is communicated with the bottom, close to the cam cavity, of the crankcase. The engine oil oil-way system of the gasoline engine has the benefits that a lubricating oil-way of the gasoline engine and a chain lubricating oil-way are well unified, so that the whole gasoline engine is compact in structure, and the like.

The invention relates to a method for producing a gasoline blending component from dry gas. The method comprises that dry gas contacts benzene on a catalyst, wherein the catalyst is a binder-free ZSM-5 molecular sieve with a silicon aluminum mole ratio SiO2/Al2O3 of 30-900 and a crystal grain diameter of 10-800 nm, and is treated with water vapor. According to the present invention, the method can be used to produce the high-octane value clean gasoline blending component through the reaction of the refinery dry gas and the benzene.

A method for cracking hydrocarbons is carried out by making a hydrocarbon contacting with a cracking catalyst. The cracking catalyst consists of molecular sieves 10 - 70wt%, fluoride 0.01 - 5wt%, which is carried by the former, a binding material 10 - 60wt%, and clay 0 - 75wt%. It achieves higher conversion rate of hydrocarbon to produce gasoline with higher octane value.