168 results about "Light crude oil" patented technology

The invention discloses a method for preparing light fuel oil and propylene from inferior raw material oil. The inferior raw material oil enters a first reaction area and a second reaction area of a catalytic conversion reactor in turn to contact a catalytic conversion catalyst with coarse particle size distribution so as to perform primary reaction and secondary reaction respectively; after the reaction product and the spent catalyst undergo gas-solid separation, the spent catalyst is subjected to steam stripping and charring in turn and then returned to the reactor for recycling; and the reaction product is separated to obtain propylene, gasoline, catalytic wax oil and other products, wherein the catalytic wax oil enters at least one of hydrotreatment device, an arene extraction device and a hydrocracking device so as to obtain hydrogenated catalytic wax oil, raffinate oil and hydrocracking tail oil. The method improves the yield of the light oil, reduces the yield of oil slurry, realizes efficient utilization of petroleum resources, reduces the consumption of the catalyst, and reduces the catalyst content of the catalytic wax oil.

A method for preparing light fuel oil and propylene from poor-quality raw oil comprises the following steps: the poor-quality raw oil sequentially enters a first reaction zone and a second reaction zone of a catalytic conversion reactor so as to be contacted with a catalytic conversion catalyst to generate first reaction and second reaction respectively, and after gas-solid separation is implemented to reaction products and spent catalyst, the spent catalyst returns to the reactor for recycling after steam stripping and burning; the reaction products are separated to obtain propylene, gasoline, heavy oil and other products, wherein the heavy oil is contacted with hydrogen and a hydrotreating catalyst for reaction, the obtained hydrogenated heavy oil circulates to the first reaction zone of the catalytic conversion reactor or/and other catalytic conversion devices for further reaction to obtain the target products of the propylene and the gasoline. The characteristic of the heavy oil obtained by hydrotreating after the mild catalytic conversion of the poor-quality raw oil is significantly improved, thereby significantly increasing light oil, reducing dry gas, reducing the yield of oil slurry and realizing the high-efficient utilization of petroleum resources.

Disclosed is a method of simultaneously manufacturing high quality naphthenic base oil and heavy base oil using a single catalyst system, by subjecting an oil fraction (slurry oil or light cycle oil) produced by fluid catalytic cracking and an oil fraction (deasphalted oil) produced by solvent deasphalting to hydrotreating, catalytic dewaxing and hydrofinishing of the single catalyst system, thereby obtaining not only products having low viscosity but also heavy base oil products (150BS) having high viscosity which was impossible to obtain using a conventional catalytic reaction process, and also thereby producing base oil products having different properties using the single catalyst system, thus generating economic benefits and exhibiting superior efficiency.

A pre-refining catalytic hydrotreating process for the desulfurization, demetallization, and upgrading of heavy, sour crude oils operating at a moderate temperature and pressure through the utilization of moving catalyst bed technology.

The invention discloses a method for degumming vegetable fat by using phosphatidase A2. The method comprises the following steps of: A, heating crude oil to 40-50 DEG C; B, adding a 45 percent (W/W) citric acid solution till the final concentration is 0.01-0.02 percent, stirring (at the speed of more than or equal to 40 revolutions per minute) or homogenizing for 10 seconds, and preserving heat for 30 minutes; C, adding water in an amount of 1-5 percent based on the weight of the crude oil, and stirring uniformly; and D, adding enzyme in an amount of 0.005-0.015 percent (W/W) based on the weight of the crude oil, stirring and reacting for 1-3 hours, and centrifuging or naturally precipitating for separating degummed oil from a gum deposit. The method is practicable, and is easy and convenient to operate; when phosphatidase A2 is used for degumming, high-value enzyme hydrolyzed phospholipid can be obtained, so that energy consumption is lowered; and expressed (or leached) crude oil with very high phosphorus content or hydrated degummed oil with relatively low phosphorus content can be directly used for degumming in the method, so that the method has a wider application range.

The invention relates to a process for converting cycle oils produced in catalytic cracking reactions into olefin and naphtha. More particularly, the invention relates to a process for hydroprocessing a catalytically cracked light cycle oil, and then re-cracking it in an upstream zone of the primary FCC riser reactor.

This invention relates to a hydrocracking catalyst for preparing valuable light aromatic hydrocarbons from polycyclic aromatic hydrocarbons derived from oil, which includes (i) beta-zeolite, (ii) pseudo-boehmite, and (iii) one or more metals selected from among metals of Groups VIII and VIB, and which further includes a cocatalyst component, thereby producing a maximum amount of BTX (Benzene, Toluene, Xylene) from LCO (Light Cycle Oil).

The invention discloses a light crude-oil circular gas-injection low-temperature oxidization experimental method and device. The experimental device comprises a modeling system, a circulating system, an analysis system and a personal computer (PC) monitoring system; the model system is used for simulating the oil reservoir pressure and for simulating an oil reservoir temperature, and the produced gas is sent into the analysis system through the circulating system; the analysis system is used for analyzing the composition of the produced gas and for sending the produced gas after being analyzed into the circulating system; the circulating system is used for returning the produced gas to the modeling system to realize the circular monitoring; and the PC monitoring system is used for monitoring the simulated oil reservoir pressure and the simulated oil reservoir temperature of the modeling system and for recording the gas composition which is circularly monitored by the analysis system. The method and the device adopts a circular gas injection way, so the problem that the experimental balance is broken because of the gas sampling analysis in the reaction system during the experimental process can be avoided.

The invention discloses a method for preparing superior fuel oil from inferior crude oil. The inferior crude oil enters first and second reaction areas of a catalytic conversion reactor in turn to contact a catalytic conversion catalyst to respectively generate primary reaction and secondary reaction, reaction products and the spent catalyst are subjected to gas-solid separation, and the spent catalyst is subjected to steam stripping and burning in turn and returns to the reactor to be recycled; and the reaction products are separated to form propylene, light fuel oil, catalytic wax oil and other products, wherein after the catalytic wax oil is extracted, the obtained extracted oil is subjected to hydrotreatment, and the obtained hydrogenated extracted oil is circulated to the first reaction area of the catalytic conversion reactor or/and other catalytic conversion devices for further reaction to form the target product of light fuel oil. The method integrates catalytic cracking, hydrotreatment, aromatic hydrocarbon extraction, conventional catalytic cracking and other processes, and the light fuel oil and the propylene are prepared from the inferior crude oil to the greatest degree, so that the oil resources are efficiently utilized.

In one aspect, this invention provides a method for the in-situ production of natural gas, light crude oil, or sequences or mixtures thereof, comprising the steps of: (a) suspending a catalytic polymer bead in a fracturing medium, wherein said catalytic polymer bead is nearly neutrally buoyant in said fracturing medium; (b) introducing said suspension into a formation at sufficiently high rates and pressures that the formation fails and fractures to accept said suspension; and (c) collecting the natural gas, light crude oil, or sequences or mixtures thereof, generated by the subterranean formation. In another aspect, this invention provides compositions of matter for said catalytic polymer beads. In yet another aspect, this invention provides processing methods for producing said catalytic polymer beads.

The invention relates to a light cycle oil selective hydrorefining method, and mainly aims at solving the problem that at present arene is largely lost in the hydrorefining process. The problem is well solved by adopting the technical scheme that light cycle oil of which the sulfur content is 2000-15000ppm and hydrogen are used as raw materials; under the condition that the volume ratio of hydrogen to light cycle oil is 300-800 : 1, the temperature is 250-450 DEG C, the weight air speed is 0.5-3 per hour and the pressure is 3-12MPa, the raw materials are contacted with a catalyst; and after the reaction, the removal rate of sulfur in the light cycle oil is larger than 96.0% according to weight percent, the denitrification percent is large than 96.0%, the polycyclic aromatic hydrocarbon conversion rate is larger than 40.0%, and the total remaining rate of arene in a product is larger than 97.0% according to weight percent. The light cycle oil selective hydrorefining method can be applied to industrial production of benzene and dimethylbenzene in a light cycle oil selective hydrogenation mode.

The present invention relates to a catalyst for producing light fuel oil by using oil-bearing rock and its method. Said catalyst raw material composition includes (by wt%) 20-35% of cobalt naphthenate, 30-40% of ethylene glycol monomethyl ether, 3-5% of acidified active clay, 10-20% of stearin and 20-37% of chlorinated paraffin. The described chlorinated paraffin is industrial chlorinated paraffin 70. Said invention also provides the concrete method and steps of utilizing said catalyst to produce light fuel oil.

The invention provides a modifier for high-pour-point crude oil which is a complex composed of the following components in percentage by weight: 0.5-6% of antiwax pour point depressant, 10-45% of sodium petroleum sulfonate, 1-5% of alkyl phenol polyoxyethylene ether, 0.5-5% of an AE-type nonionic surfactant, 3-15% of an AR-type nonionic surfactant and the balance of a solvent. The modifier can result in an ideal antiwax effect of different water-containing oil well, prolong wax cleaning period, and guarantee the normal production of oil well under various working conditions, and has the characteristics of multiple effects and high adaptability.

The invention provides a hydrocracking method of deep cut anthracene oil. The method comprises the following steps of: refining deep cut anthracene oil by means of hydrogenation, then subjecting the deep cut anthracene oil into gas-liquid separation by means of a hot high-pressure separator and a hot low-pressure separator, partially recycling the hot low boiling point oil obtained into the hydrofining region to mix with the deep cut anthracene oil, infusing the residual hot low boiling point oil into the hydrocracking region and then orderly adding a hydrofining catalyst, a hydrodecarbonation catalyst and a hydrocracking catalyst, wherein the hydrocracking product and the gas separated from the hot high-pressure separator are entered into a cold high-pressure separator, the liquid separated during the hydrocracking process and the gas separated from the hot low-pressure separator are entered into a cold low-pressure separator, and the liquid separated during the hydrocracking process is infused into the product distillation column after stripping so as to obtain gasoline and diesel fractions. The hydrocracking method of deep cut anthracene oil provided by the invention has the advantages that the deep cut anthracene oil can be processed, the range of raw material is enlarged, the deep cut anthracene oil can be inversed in the maximum extent and the yield of light fuel oil is improved; simultaneously, the activity of hydrocracking catalyst is effectively protected and the device can be run in a long period.