Totally found 98237 items.

  • [专利] (CN107735154) Additive composition for demulsification of water-in-oil emulsion, and method of use thereof, and method of demulsification
    (CN107735154) Additive composition for demulsification of water-in-oil emulsions, and method of use thereof, and method of demulsification. The present invention relates to a demulsification composition for demulsification of water-in-oil emulsion formed due to mixing of wash water in the crude oil, wherein the composition comprises: a. a compound selected from the group comprising glyoxal, neutralized glyoxal,glyoxal derivative and a mixture thereof; and b. one or more demulsifiers. In one embodiment, the present invention relates to a method of demulsification of water-in-oil emulsions by treating it with the present demulsification composition. In another embodiment, the present invention relates to a method of using the present additive composition for demulsification of water-in-oil emulsions.
  • [专利] (CN107735154) Additive composition for demulsification of water-in-oil emulsion, and method of use thereof, and method of demulsification
    (CN107735154) Additive composition for demulsification of water-in-oil emulsions, and method of use thereof, and method of demulsification. The present invention relates to a demulsification composition for demulsification of water-in-oil emulsion formed due to mixing of wash water in the crude oil, wherein the composition comprises: a. a compound selected from the group comprising glyoxal, neutralized glyoxal,glyoxal derivative and a mixture thereof; and b. one or more demulsifiers. In one embodiment, the present invention relates to a method of demulsification of water-in-oil emulsions by treating it with the present demulsification composition. In another embodiment, the present invention relates to a method of using the present additive composition for demulsification of water-in-oil emulsions.
  • [专利] (CN109157950) Method for purifying and utilizing cracking rich gas
    (CN109157950) The invention discloses a method for purifying and utilizing cracking rich gas. The method comprises the following steps: alkali washing: guiding high-temperature mixed gas generated by cracking intoan alkali washing tower; condensation: guiding the high-temperature mixed gas discharged from the alkali washing tower into a condenser through an induced draft fan to condense to 10-15 DEG C; solventwashing: guiding the condensed mixed gas and isophoron solution into a washing tower via a certain velocity ratio; copious cooling dehydration: guiding rich gas discharged from the washing tower intoa copious cooling condensation device to condense to 2-5 DEG C so as to remove moisture in the rich gas; chemical dehydration: guiding the copious cooling dehydrated rich gas into a drying tower so as to remove residual moisture in the rich gas; and rich gas tank filling: guiding the dried rich gas into a pressure pump to pressurizing to 50-80 Kpa, and filling the rich gas into a rich gas storagetank. According to the method, purification and recovery of rich gas generated in the process of preparing 3,5-xylenol via cracking can be realized, so that environment pollution caused by rich gas discharging is prevented.
  • [专利] (CN107973789) Epoxidized soybean oil flexibilizer as well as preparation method and application thereof
    (CN107973789) The invention provides an epoxidized soybean oil flexibilizer as well as a preparation method and application thereof. The epoxidized soybean oil flexibilizer disclosed by the invention is prepared bygrafting reaction between epoxidized soybean oil and thiourea modified piperylhydrazine compound. The epoxidized soybean oil flexibilizer disclosed by the invention can be applied to a polyvinyl chloride material, can obtain dual functionality, not only can improve material toughness, but also improve light stability and further has good compatibility.
  • [专利] (CN107725042) Physical simulation experiment device and method of high-temperature high-pressure large fractured-vuggy carbonate reservoir
    (CN107725042) The invention discloses a physical simulation experiment device of a high-temperature high-pressure large fractured-vuggy carbonate reservoir. The experiment device comprises a model system, an injecting system, a measuring system and a monitoring system. The invention further provides a physical simulation experiment method of the high-temperature high-pressure large fractured-vuggy carbonate reservoir, and the physical simulation experiment device of the high-temperature high-pressure large fractured-vuggy carbonate reservoir is adopted in the experiment method. According to the experiment device and the experiment method, through mutual cooperation of the model system, the injecting system, the measuring system and the monitoring system, influences of different fracture and vug positions, fracture and vug number, different cave sizes, the filling degree and bottom water on the exploitation effect of the fractured-vuggy reservoir can be simulated; high-temperature high-pressure reservoir conditions can be simulated; the experiment device can be disassembled and self-assembled, so that repeated use is achieved, and the cost is low.
  • [专利] (CN109053821) Methods for extracting tea polyphenol, total amino acid and flavonoids from momordica grosvenori leaves
    (CN109053821) The invention discloses methods for extracting tea polyphenol, total amino acid and flavonoids from momordica grosvenori leaves. The method for extracting tea polyphenol comprises the steps as follows: (1) percolation extraction: momordica grosvenori leaves are crushed, the crushed momordica grosvenori leaves are put in a percolation device to be compressed, water is added, percolation extractionis performed at the room temperature, and a percolate is obtained; (2) separation of tea polyphenol: an organic solvent is added, stirring, extraction and standing for layering are performed at the room temperature, a separated organic layer is washed to be colorless with an acid aqueous solution, concentration, drying and recrystallization are performed, and the tea polyphenol is obtained. The invention also discloses the method for extracting total amino acid and flavonoid simultaneously. The purity and the yield of tea polyphenol, total amino acid, a flavonoid I and a flavonoid II obtainedwith the methods are high. The methods are high in technological process operability, low in cost, green and environmentally friendly, efficient and comprehensive utilization of momordica grosvenori resources is realized, a new way is opened up for increase of incomes of momordica grosvenori processing enterprises, and the methods are suitable for industrial production.
  • [专利] (CN107686745) Light gasoline etherification system and light gasoline etherification technological method thereof
    (CN107686745) The invention provides a light gasoline etherification system and a light gasoline etherification technological method thereof. The light gasoline etherification system comprises a methanol raw material tank, a light gasoline raw material tank, a static mixer, a fixed bed reactor and a catalytic rectifying tower, wherein an upper section, a middle section and a lower section of the catalytic rectifying tower is respectively provided with a rectification section, a reaction section and a stripping section; a first gas phase material extraction pipe is arranged in a manner of leading out of themiddle part of the reaction section and is communicated with a feeding hole of the catalytic rectifying tower; a second gas phase material extraction pipe is arranged in a manner of leading out of themiddle part of the stripping section and is communicated with the middle part of the reaction section of the catalytic rectifying tower. In the light gasoline etherification technological method based on the system, gas phase material extraction ratios of the reaction section and the stripping section are both 30 to 60 percent. According to the technical scheme, conversion ratios of etherificatedcarbon 5 and etherificated carbon 6 are greatly improved, and the light gasoline etherification system and the light gasoline etherification technological method thereof also have the technical advantages of simple technological method, easiness for realization, simplification of separation processes and high etherification production efficiency; moreover, the production operation cost is greatlyreduced.
  • [专利] (CN106537016) Threaded joint for oil well pipe and composition for light-curable film covering
    (CN106537016) Provided is a threaded joint for an oil well pipe with which it is possible to suppress the increase in torque when a pin and a box are linked in a cold region. The threaded joint (1) for the oil well pipe of the present embodiment is provided with the pin (2) and the box (3). The pin (2) and the box (3) have respective contact surfaces (21, 31) having threaded parts (22, 32) and threadless metal contact parts (23, 33). The contact surface (21) of the pin (2) is provided with a light-curable film covering (25) as the uppermost layer. The light-curable film covering (25) contains a light-curable resin and perfluoro polyether. The contact surface (31) of the box (3) is provided with a solid lubricating film covering (35) as the uppermost layer.
  • [专利] (CN107922824) Smart water flooding processes for increasing hydrocarbon recovery
    (CN107922824) Methods, compositions, and techniques for enhancing the production of hydrocarbons such as crude oil from subterranean hydrocarbon bearing formations are disclosed. In some embodiments, the inventionrelates to processes for evaluating enhanced oil recovery mechanisms in carbonate based reservoirs at both the rock-fluid and oil-water interfaces using spectroscopic and interfacial techniques. In further embodiments, the spectroscopic and interfacial techniques include microscopic, rheometric and tensiometric measurements. In preferred embodiments, the disclosed methods and techniques provide reservoir based details at that allow for optimized "smart water" flooding practices and correspondingly higher oil recovery rates.
  • [专利] (CN109956856) Method for extracting coenzyme Q10 and phospholipid from coenzyme Q10 fermentation bacterial powder
    (CN109956856) The present application relates to a method for extracting coenzyme Q10 and phospholipid from coenzyme Q10 fermentation bacterial powder. The method is characterized by comprising the step of performing extraction on the fermentation bacterial powder of coenzyme Q10 production strain by using a mixed solvent having a three-dimensional Hansen solubility parameter of 21-23 (J/cm<3
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