13 results about "Cold filter plugging point" patented technology

A composition comprising at least one fuel that is a diesel fuel, a biodiesel fuel, or combinations thereof and less than 100ppm, less than 50ppm (or less than 25ppm, less than 10ppm, 1 to 7ppm, or 5 to 7ppm) of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 25 to 500ppm (or 50 to 500ppm, or 150 to 450ppm or 250 to 450ppm, or 250 to 400ppm) of a terpolymer; and 5 to 90ppm, (or 10 to 70ppm, to 60ppm, or 10 to 55ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Methods of reducing the cold filter plugging point ("CFPP") of a fuel, said method comprising adding the following components: less than 100ppm, less than 50ppm (or less than 25ppm; less than 10ppm, 1 to 7ppm, or 5 to 7ppm) of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 25 to 500ppm (or 50 to 500ppm, or 150 to 450ppm or 250 to 450ppm, or 250 to 400ppm) of a terpolymer; and 5 to 90ppm, (or 10 to 70ppm, to 60ppm, or 10 to 55ppm) of hydrocarbyl-substituted amine detergent having at least one tertiary amino group. Uses of a fuel additive composition to reduce the cold filter plugging point ("CFPP") of a fuel, wherein the fuel additive composition comprises: 0.2 to 3wt% of an alkylene-coupled C10 to C60 (or C10 to C40, C14 to C32 or C24 to C28) alkylphenol; 10 to 50wt% of a terpolymer; and 2 to 10wt% of hydrocarbyl-substituted amine detergent having at least one tertiary amino group; and an optional solvent.

The utility model belongs to the field of laboratory equipment cleaning, and discloses an automatic cleaning device for a cold filter plugging point pipette. Comprising a testing part, a cleaning part and a control part. And the effects of efficient cleaning, thorough cleaning, rapid drying, environmental protection, safety and simple and convenient operation can be achieved.

The invention relates to the technical field of diesel oil preparation, in particular to a preparation method of environment-friendly diesel oil with an ultralow condensation point. Comprising the following steps: step 1: raw material pretreatment: S1.1, raw material component screening and proportion determination (in percentage by mass): a basic component: hydrofined diesel oil fraction (straight-run diesel oil is subjected to hydrodesulfurization / dearomatization, the distillation range is 180-360 DEG C, the sulfur content is less than or equal to 5 ppm, the aromatic hydrocarbon content is less than or equal to 10%, and the cetane number is more than or equal to 50), and the proportion is 60-70 wt%; the bio-based pour point depressing component comprises 10-15 wt% of rapeseed oil methyl ester biodiesel (the acid value is less than or equal to 0.5 mgKOH / g, the moisture is less than or equal to 0.05 wt%, and the iodine value is 100-120 gI / 100 g); the modified synthetic ester pour point depressant is a pentaerythritol fatty acid ester-polymethacrylate grafted copolymer (the number-average molecular weight is 8000-12000, and the ester content is 40-50 wt%); the condensation point of the finished diesel oil is less than or equal to-45 DEG C, the cold filter plugging point is less than or equal to-38 DEG C, the low-temperature fluidity is excellent, the finished diesel oil is suitable for all-weather use in-45 DEG C alpine regions, the sulfur content is less than or equal to 5ppm, the aromatic hydrocarbon content is less than or equal to 15%, the cetane number is greater than or equal to 52, the national VII diesel oil standard is completely met, and the particulate matter emission after combustion is reduced by 18%

The application provides a preparation method and application of a ternary copolymer EVA diesel pour point depressant, and belongs to the technical field of petroleum chemical additives. The ternary copolymer EVA diesel pour point depressant with an ethylene content of 60% to 65% is successfully prepared by introducing a third monomer into EVA, using an alkane compound as a solvent, adopting a medium-pressure polymerization process, and in a way of step feeding and continuously dropping the remaining raw materials. The introduction of the third monomer provides suitable polar groups and steric hindrance effects, effectively protects ester groups and improves the dispersibility of the pour point depressant in diesel. The ternary copolymer EVA diesel pour point depressant has a significant pour point depression effect, can reduce the diesel condensation point by 15 to 23 DEG C, and can reduce the cold filter plugging point by 8 to 14 DEG C. Compared with the existing high-pressure process, the application significantly reduces the equipment investment and energy consumption, the process is simple and easy to industrialize, provides an economic and efficient scheme for improving the low-temperature fluidity of diesel, and has a good popularization and application prospect.

The present application belongs to the technical field of biomass energy additive, and particularly relates to an environment-friendly crude oil pour point depressant as well as a preparation method and application thereof. The crude oil pour point depressant product is based on a fumaric acid high-carbon alcohol ester polymer formed by esterification of fumaric acid and a high-carbon alcohol ester, and the performance is optimized by mixing and adding a polymer formed by radical polymerization of glycidyl methacrylate and norbornene dicarboxylic anhydride. The two are mixed to form the required crude oil pour point depressant. The synergistic effect of the glycidyl methacrylate-norbornene dicarboxylic anhydride polymer on the fumaric acid high-carbon alcohol ester polymer can effectively improve the freezing point, cold filter plugging point and viscosity of the crude oil product, and further enhance the low-temperature conveying and application performance thereof.

The present application relates to the technical field of diesel oil freezing point and cold filter point prediction, and is a diesel oil freezing point and cold filter point prediction method and system, which comprises the following steps: analyzing and testing diesel oil by an analysis instrument to obtain an actual value of a first property; obtaining main homologues in diesel oil structure and a central molecule set according to the main homologues; expanding the central molecule set according to a preset rule to obtain virtual molecules; applying a preset structure and property relationship to the virtual molecules to obtain a virtual molecule content and a first property calculation function; optimizing the first property calculation function by an optimization algorithm to obtain a relative content of the virtual molecules; obtaining a diesel oil molecule matrix according to the relative content and a structure vector; and sending the diesel oil molecule matrix to a neural network model for prediction to obtain the freezing point and the cold filter point of the diesel oil. The present application can better describe diesel oil at a molecular level, and can more conveniently, economically and accurately predict the freezing point and the cold filter point.

Integrated general fuel and its preparation method and system. Its indexes are as follows: density at 20℃ is 0.775-0.830 g / cm 3 ; freezing point ≤-47℃; net heat value ≥42.8 MJ / Kg; cetane number ≥45; condensation point ≤-50℃; cold filter plugging point ≤-50℃; closed flash point ≥50℃; polycyclic aromatic hydrocarbon content ≤1 wt%; 10% recovery temperature ≤205℃; 50% recovery temperature ≤232℃; final boiling point ≤300℃. Its preparation method comprises: (1) coal direct liquefaction oil is subjected to fractionation, hydrofining and separation in sequence to obtain coal direct liquefaction full distillate; (2) coal indirect liquefaction oil is subjected to the foregoing process to obtain coal indirect liquefaction full distillate; (3) coal direct and indirect liquefaction full distillates are cut and blended. The integrated general fuel meets the main indexes of diesel and jet fuel; its preparation method and system are simple and low in cost.

The invention relates to a binary polymerization hydroxyl-containing low-temperature fluidity improver and a preparation method and application thereof.The preparation method comprises the steps that methacrylic acid, tetradecyl alcohol and hydroquinone are prepared into a mixed solution, esterification reaction is conducted under the action of a catalyst, tetradecyl methacrylate is obtained, and the tetradecyl methacrylate and the hydroquinone are mixed to obtain the binary polymerization hydroxyl-containing low-temperature fluidity improver. Tetradecyl methacrylate and 3-methyl-2-butene-1-alcohol are subjected to a polymerization reaction under the action of an initiator, and the binary polymerization hydroxyl-containing low-temperature fluidity improver is prepared. Compared with the prior art, the catalyst has good solubility and dispersibility in diesel oil, and the condensation point and the cold filter plugging point of the diesel oil can be remarkably reduced by inhibiting wax crystal growth and improving crystal distribution. Experimental results show that an excellent pour point depressing effect can be obtained under a relatively low addition amount. The method has the advantages of simple preparation process, easily available raw materials, high efficiency, low consumption, wide application range and the like, and is suitable for the field of low-temperature performance modification of diesel fuel and other medium-fraction oil products.

The utility model relates to the technical field of detection devices, in particular to a suction device of a cold filter plugging point tester. According to the technical scheme, the device comprises a base and a test tube, a refrigeration device body is embedded in the front end of the outer top surface of the base, the test tube is inserted into the middle of the interior of the refrigeration device body, a sealing cover is arranged at the top end of the test tube, a suction pipe is inserted into the middle of the interior of the sealing cover, and the top end of the suction pipe is connected with a first pipeline; one end of the first pipeline is connected to one side of the first filter, the other side of the first filter is connected to one side of the second filter through the second pipeline, and the other side of the second filter is connected to the input end of the pump body through the third pipeline. By arranging the two filters, the filtering efficiency is remarkably improved, solid particles in liquid are effectively intercepted, the accuracy of a measurement result is ensured, in addition, the liquid receiving barrel body is located in the top seat and is closed by the access door, impurities in external air are prevented from entering the top seat, and liquid pollution is avoided.

To provide a diesel fuel oil composition that combines excellent ignition performance, combustion performance at low temperature, low-temperature fluidity, and fuel consumption performance.SOLUTION: A diesel fuel oil composition comprises a hydrotreated vegetable oil and at least one base material selected from desulfurized straight-run gas oil, dewaxed gas oil, and desulfurized kerosene, wherein a content of the hydrotreated vegetable oil based on a total amount of the composition is 0.1 volume percent or more and less than 70.0 volume percent, and the diesel fuel oil composition satisfies all of the following requirements: (1) a cetane number exceeding 58.0, (2) a pour point of -17.5°C or lower, (3) a cold filter plugging point of -10°C or lower, and (4) a gross calorific value exceeding 37000 J / cm3. A method for producing the diesel fuel oil composition is also provided.SELECTED DRAWING: None

The invention relates to the technical field of petroleum performance detection, and discloses an automatic condensation point and cold filter plugging point measuring device and method. The automatic condensation point and cold filter plugging point measuring device comprises a measuring host, a mounting module and a control module, the mounting module is used for mounting and sealing the detection module at the detection station, and comprises a container bearing piece, a fixed connecting piece, a pressing driving piece and an adjustable sealing piece; the container bearing part is used for being connected with the detection module and bearing a storage container containing a to-be-detected medium. According to the invention, the digital closed-loop control of the pressing force is realized in the test tube mounting link, the consistent mechanical state and optimal thermal contact of each mounting are ensured, and the manual operation difference is eliminated; a sealing assembly capable of being dynamically adjusted is adopted in the sealing link, and interface change caused by thermal expansion and cold contraction can be compensated in real time according to pressure feedback in the whole testing process, so that stable and reliable long-term sealing is maintained in a wide temperature range.

The invention belongs to the technical field of fuel, and particularly relates to high-cleanness fuel suitable for inland ships and a preparation method of the high-cleanness fuel. According to the high-cleanliness fuel suitable for the inland ships and the preparation method of the high-cleanliness fuel, different common base oils are adopted for compatibility, and the high-cleanliness fuel suitable for the inland ships is prepared; the prepared high-cleanliness fuel has density, distillation range, cetane number, oxidation stability, cold filter plugging point, acidity, naphthenic hydrocarbon content, aromatic hydrocarbon content and polycyclic aromatic hydrocarbon content in specific ranges, so that the pollution emission and oil consumption rate of the high-cleanliness fuel product are remarkably reduced, the fuel oil production cost is low, and the preparation method is simple.

The utility model relates to the technical field of fuel oil detection, in particular to a visual fraction fuel oil cold filter plugging point tester. According to the technical scheme, the device comprises a bottom plate, a base plate, a tank body and a measuring cylinder, the base plate is arranged on the bottom plate, the bottom end of the tank body is placed on the base plate, a sealing cover is arranged at the opening position of the tank body, a cylinder body is arranged on the sealing cover, a piston is arranged in the cylinder body through a lifting assembly, a material nozzle is arranged on the cylinder body, a one-way valve is arranged in the material nozzle, and the measuring cylinder is arranged on the base plate. The measuring cylinder is placed on the bottom plate, a filter screen is arranged at an opening in the top end of the measuring cylinder, and the filter screen is located under an opening in the bottom end of the cylinder body. According to the utility model, the structure is convenient to clean by improving a pressure providing mode, the time and the frequency required by cleaning are reduced by optimizing the design, and cross contamination among different oils can be avoided, so that the accuracy of test data is improved, and the consistency of samples is ensured.