52 results about "Petroleum processor" patented technology

A continuous process to upgrade heavy crude oil for producing more valuable crude feedstock having high API gravity, low asphaltene content, and high middle distillate yield, low sulfur content, low nitrogen content, and low metal co teat without external supply of hydrogen and / or catalyst. Heavy crude oil having substantial amount of asphaltene and heavy components is mixed with highly waxy crude oil having large amount of paraffinic components and water to decompose asphaltene compounds and remove sulfur, nitrogen, and metal containing substances under supercritical conditions. Product has higher API gravity, lower asphaltene content, high middle distillate yield, lower sulfur content, lower nitrogen content, and lower metal content to be suitable for conventional petroleum refining process.

This invention relates to a method for recovering and utilizing waste heat in oil refining including: 1, a high temperature hot water system recovers waste heat of all high temperature level and part of low temperature level and a low temperature hot water system recovers residual low temperature waste heat at a source part, 2, a heat trap part is divided into a stable part and an unstable part, the stable trap is taken as the main part of the high temperature hot water system and the unstable one is taken as the main part of the low temperature hot water system, 3, hot water is cooled to a stipulated temperature by a cooling system then sent to the source part to collect heat before returning to the source part.

The present invention discloses a descaling agent used for a hydrogenation device and the preparation method and the application thereof, and solves the coking and scale deposition of the relevant equipment during the petroleum refining process, such as a hydrogenation device reactor, a heating furnace, and a heat exchanger. The general formula of the hydrogenation descaling agent is shown as the formula (1), wherein, R is C8-C20 alkyl; R2 is H, R1 is C1-C24 alkyl, alkoxy or aryl; or both R1 and R2 are C1-C15 alkyl, alkoxy or aryl. Through adopting the descaling agent of the invention, notonly the coking and scale deposition can be inhibited, but also the production is simple and easy, and the descaling agent is harmless to the environment.

The invention discloses a method and a device for catalytic cracking of a riser in a petroleum refining process, which are mainly used to solve the problems of poor catalytic effect in the second half of the existing riser reactor, intensified thermal cracking reaction, and the like. The present invention adopts a two-stage riser reactor, the semi-regenerated catalyst and raw oil (401) with higher temperature from the first regenerator (10) enter the bottom of the riser reactor (3), and along the first reaction section (301) carry out catalytic cracking reaction upward; Introduce the regenerated catalyst from the lower temperature of the second regenerator (14) through the catalyst inlet (304) in the middle of the riser reactor (3), and from the first reaction section (301) The upward catalyst is mixed with oil and gas, enters the second reaction section (302) and continues upward to carry out the catalytic cracking reaction. The invention is mainly used for catalytic cracking processing of petroleum heavy distillates to improve the distribution of cracked products and the quality of cracked gasoline in catalytic cracking units.

The invention is a composition that is suitable for reducing sulfur species from products produced by petroleum refining processes, especially gasoline products produced by fluidized catalytic cracking (FCC) processes. The composition comprises zeolite, yttrium, and at least one element selected from the group consisting of zinc, magnesium and manganese, wherein the yttrium and element are present as cations. The yttrium and zinc are preferably present as cations that have been exchanged onto the zeolite. The zeolite is preferably a zeolite Y.

The invention provides an underground heat insulation air-suspended bed reactor which is suitable for a heavy oil hydrogenation lightweighting technology, a hydrogenation direct liquidation technology for coal and biomass and a mixing coprocessing lightweighting machining technology for coal, biomass and heavy oil in a petroleum refining process and a high-temperature and high-pressure chemical reaction process of other fluid materials.

The invention is a two-stage heavy oil catalytic cracking conversion method and device, belonging to petroleum refining process and device technical field, separating heavy oil reaction course into top and bottom reacting regions, making raw oil and regenerated catalyst firstly contact and react with each other in the bottom reacting region and successively separating the carbon deposit deactivated catalyst from reacting oil; making the oil gas go up into the second reacting region to mix with the catalyst used in gasoline reaction and continue reaction; a heavy oil reactor is connected in parallel with gasoline reacting part; the gasoline and catalyst complete reaction in the gasoline reactor and then make gas-solid separation in gasoline settler, where the oil gas is discharged through pipeline and the extracted catalyst is fed into pre-rising stages below the first and second heavy oil reacting regions to continue taking part in heavy reaction; a catalyst return pipe is arranged between the pre-rising stages of the gasoline settler and gasoline reactor to make a part of catalyst used in gasoline reaction return to the bottom of the gasoline reactor, so as to take part in gasoline reaction. And it can obviously raise efficiency of heavy oil reactor, improve product quality and need not consume energy because of catalyst change.

The invention belongs to the technical field of petrochemical equipment and particularly provides a high-temperature corrosion inhibitor for oilfield exploitation and a petroleum refining process. The high-temperature corrosion inhibitor is prepared from raw materials in parts by weight as follows: a raw material group A: 6-8 parts of ricinolic acid and 2-4 parts of stearic acid; a raw material group B: N-methyldiethanolamine, triethanolamine and industrial white oil, wherein the weight of N-methyldiethanolamine is 0.18-0.2 times that of the raw material group A, the weight of triethanolamine is 0.06-0.08 times that of the raw material group A, and the weight of the industrial white oil is 0.35-0.4 times that of the raw material group A. The high-temperature corrosion inhibitor has the corrosion inhibition rate of about 97% and has the advantages of being good in corrosion inhibiting effect, non-irritant, safe, reliable, safe and stable in the production use operation process, environment-friendly and the like. According to the preparation method, performance of the raw materials is comprehensively considered, and the high-temperature corrosion inhibitor with more stable performance and more excellent corrosion inhibition effects can be obtained.

The invention discloses an adaptive control method for the liquid level of a fractionation tower in the petroleum refining process. In this method, the reverse error neural network and extreme value optimization method are used as adaptive tools, and the predictive PI control strategy is designed in combination with the input and output of the actual operation process. The present invention first uses the data acquisition device to collect the past input and output of the system, and then designs an extreme value optimization algorithm as a solver to adjust the weight of the neural network online, thereby efficiently and accurately training the neural network; after satisfying the set error constraints, The trained neural network weight is used as the identification parameter of the system, and a system model close to the actual situation is established. Finally, the predictive PI control is designed to control the liquid level of the fractionation tower in the process of petroleum refining. By adopting the method of the invention, the interference of model mismatch to the system can be effectively relieved, the control performance is improved, and the application of advanced control in industrial process control is also promoted.

The invention relates to a quick-dry fog sealing layer material, which is formed by the following components: 20wt percent to 40wt percent of asphalt-recycling agent, and 5wt percent to 25wt percent of complex solubilizer, wherein the asphalt-recycling agent is formed by deasphalted oil, heavy aromatic oil and additives; the additives are selected from at least one of the following compounds: dibutyl phthalate, epoxidized soybean oil, chlorinated methoxy fatty acid ester and parabens; the mass ratio of the deasphalted oil to the heavy aromatic oil to the additives is 1:0.1 to 1:0.05 to 0.5. The invention also relates to a preparation method and application of the quick-dry fog sealing layer material. According to the quick-dry fog sealing layer material, the heavy aromatic oil and the like during the petroleum refining process are utilized to form the asphalt-recycling agent so as to obtain the fog sealing layer material with high additional value, so that the quick-dry fog sealing layer material can play a role in preventing aging and regenerating on aged asphalt pavements. In addition, according to the quick-dry fog sealing layer material provided by the invention, the maintenance time at low temperature is only 2 to 4h, which is shortened by over half the time for sealing and maintaining of the existing fog sealing layer material.

The invention discloses a smoke filter equipment used in petroleum refining process. Its structure includes a filter body, a filter plate assembly cover plate, a power on and off controller, a support base plate, and a miscellaneous box. The filter body is a cuboid, and the right side of the front end is inlaid The filter plate assembly cover is fastened, and the support bottom plate is welded on the front and rear sides of the bottom. The mechanism composed of springs, gears, chains, electromagnets, etc. enables the equipment to automatically switch between multiple spare filter plates at regular intervals, and can automatically lower and retract the front filter plates when switching to use, so that when the equipment is in use It can better prevent the filter drop, clogging and flue gas recirculation caused by the long-term use of the filter plate. It can also replace and clean the filter plate during work, and can perform secondary filtration, and can filter the impurities in the secondary filter. Automatic collection for ease of use.

The invention discloses smoke filtration equipment for a petroleum refining process. The smoke filtration equipment structurally comprises a main smoke treatment device, equipment scaffolds, a filterresidue outlet, a smoke inlet pipe, a conveying and connecting pipe, an induced draft fan, an induced draft fan servo motor, a reflux retreatment device, an exhaust chimney and an electric control cabinet; the six equipment scaffolds are arranged below the main smoke treatment device and is vertically connected by electrowelding; the filter residue outlet is formed below the right of the front surface of the main smoke treatment device; and the smoke inlet pipe is arranged in the center of the left side of the main smoke treatment device and is vertically connected by electrowelding. Due to the arrangement of the reflux retreatment device, the treated smoke is detected, and smoke treated not to reach the standard can be automatically subjected to reflux retreatment, so that dust dischargedinto the atmospheric environment is kept to be gases reaching the standard, the environment is protected, and the environment friendliness of the smoke filtration equipment for a petroleum refining process is effectively improved.