68results about "Reforming process control/regulation" patented technology

The invention relates to a naphtha catalytic reforming method which includes the steps as follows: the naphtha is pumped into the reactor of a catalytic reforming device; gas-liquid separation is carried out on the reformed product for separating gas components, the light component of C8<-> as well as the heavy component of C9<+>; then a light aromatics reaction is carried out on the heavy component of C9<+> under the existence of a light aromatics catalyst; the hydrogen used by the light aromatics reaction is from the circulated hydrogen generated from a reforming device; then gas-liquid separation is carried out on the product after the light aromatics reaction; the liquid returns to the liquid product distilling system of the reforming device. The method can fully utilize the heavy component of C9<+> and convert the heavy component into light aromatic hydrocarbon, improve the aromatic hydrocarbon yield or the yield of the reformed gasoline during the whole process and improve the character of the gasoline.

A system and a method for determining the relative value of a naphtha stream is provided, by conducting analysis on the crude oil sample, after which modules or steps are performed to estimate the total liquid yields, estimate raw product yields, normalize raw product yields, determine the value of each fraction based on predetermined values, and calculate the total value of the naphtha stream. The method is repeated on samples from different crude oils in order to provide relative values for comparison purposes at a predetermined RON.

A system and a method for determining the relative value of a naphtha product includes reforming the naphtha into fractions at a predetermined constant research octane number (RON), conducting PIONA analysis on the reformate, after which modules or steps are performed to assign the feed quality, assign the total liquid yields, assign raw product yields, normalize the assigned raw product yields, assign a value to one or more fractions, and calculate a total value of the naphtha stream. The method is repeated on samples of different crude oils in order to provide relative values at the predetermined RON for comparison purposes.

The invention relates to a real-time optimization method, device and system of a molecular-level device, and a storage medium. The method comprises the following steps: determining raw material molecular composition of a petroleum processing raw material; inputting the raw material molecular composition into a pre-trained product prediction model to obtain the predicted molecular composition of acorresponding predicted product and the predicted molecular content of each single molecule; acquiring a preset standard set of a preset target product; according to the predicted molecular composition and the predicted molecular content of each single molecule, judging whether the predicted product meets a preset standard of a target product, corresponding to the predicted product, in the presetstandard set or not; and if any preset standard of the corresponding target product is not met, adjusting operation parameters in a product prediction model to obtain the predicted molecular composition of the predicted product and the predicted molecular content of each single molecule again until the preset standard is met. According to the invention, molecular-level overall simulation and real-time optimization of the molecular-level device from raw materials to product processing are achieved, and precision and production benefits are improved.

The invention relates to a method, device and system for full-process optimization of molecular-grade oil refining processing, and a storage medium. According to embodiments of the invention, mixed products are obtained by simulating and predicting the molecular-grade crude oil processing flow; when the physical property of any mixed product does not conform to any preset standard, or the target parameters of the mixed products do not meet preset conditions, the proportions of different fractions entering corresponding petroleum processing devices are adjusted, the operation parameters in a product prediction model are adjusted, and mixing rules for mixing predicted products are adjusted so as to obtain mixed products again; and the above operations are repeated until the physical properties of all the mixed products meet any preset standard and the target parameters of all the mixed products meet the preset conditions, and a final predicted product is predicted by adjusting the proportion of fractions subjected to secondary treatment. A production process is simulated and optimized, so production benefits are improved.

This invention relates to process for producing a reformate or gasoline product. The process involves a rapid cycle of reacting hydrocarbon feedstock to form the product and then regenerating the catalyst used in the reaction. The process can be carried out at relatively high liquid hourly space velocities and preferably at relatively low hydrogen to hydrocarbon ratios to produce a reformed product having relatively high liquid yield and hydrogen content.

The invention relates to an oil-refining chemical production balancing system, which comprises an oil-refining production device, an oil tank, a lateral line for connecting the oil-refining production device and the oil tank, and a data acquisition unit for connecting an oil tank volume data acquisition device and a lateral line flow conjecture data acquisition device, wherein the data acquisition unit is connected with an estimation calculating device which can calculate out lateral line flow conjecture data according with oil tank volume data. The oil-refining chemical production balancing system can calculate out the lateral line flow conjecture data which are in consistent with the oil tank volume data and accords with actual situations better through the oil tank volume data, so thata production manager can accurately know the production condition of the oil-refining production device. The oil-refining chemical production balancing system can feed back on-site production information in time and make adjustments according with the actual situation aiming at the production condition of the device.

A method for cleaning a coke deposit from an internal surface of process equipment comprises removing at least a portion of the coke deposit from the internal surface using a flexible pig comprising aplurality of bristles, without damaging a metal protective layer of the internal surface of the process equipment. A flexible pig (100) for cleaning a coke deposit from an internal surface of processequipment without damaging a metal protective layer of the internal surface comprises a flexible body (110) formed of a polymeric material (130), and a plurality of bristles (120) partially encapsulated by the polymeric material of the flexible body.

The present invention relates to a multistage reforming process to produce a high octane product. A naphtha boiling range feedstock is processed in a multi-stage reforming process, in which said process involves at least 1) a penultimate stage for reforming the naphtha feedstock to produce a penultimate effluent 2) a final stage for further reforming at least a portion of the penultimate effluent 3) a regeneration step for the final stage catalyst. The severity of the penultimate stage can be increased during final stage catalyst regeneration in order to maintain the target RON of the reformate product and avoid reactor downtime.

One exemplary embodiment can be a process for facilitating a transfer of a metal catalyst component from at least one donor particle to at least one recipient particle in a catalytic naphtha reforming unit. The process can include transferring an effective amount of the metal catalyst component from the at least one donor particle to the at least one recipient particle under conditions to effect such transfer to improve a conversion of a hydrocarbon feed.

The present disclosure relates to a process for the deolefinization of hydrocarbon streams through an aromatic alkylation reaction by olefins, using a catalyst containing a framework-substituted zirconium and/or titanium and/or hafnium-modified ultra-stable Y (USY) type zeolite.

The invention relates to a continuous catalytic reforming method capable of achieving upflow regeneration of a catalyst and adsorption and recovery of chlorine in coke-burning gas. Upflow contact of the to-be-regenerated catalyst with the coke-burning gas is performed through a regenerator so as to achieve regeneration, so that the water content of the coke-burning gas in an upper coke burning section and a lower coke burning section is reduced to a very low level, and the water content of the coke-burning gas in the upper coke burning section is decreased gradually in the direction of catalyst movement. When the method is compared with the prior art, reduction of the specific surface area loss of the catalyst, prolonging of the service life of the catalyst and reduction of the loss of thechlorine component in the catalyst can be achieved in the regeneration process relative to a dry coke burning environment, so that the usage amount of a chlorinating agent needed to be supplemented in the oxychlorination process is reduced, and corrosion of the coke burning gas to devices and pipelines in a circulation loop is slowed down; and the chlorine in the coke burning gas is adsorbed by the to-be-regenerated catalyst, so that the chlorine injection amount in the oxychlorination section is reduced, investment is saved, and the environment is protected.

The invention relates to the technical field of catalytic reforming, and discloses a catalytic reforming energy-saving system, a catalytic reforming energy-saving method and a catalytic reforming reaction system. The catalytic reforming energy-saving system comprises a high-pressure absorption tank, a reformed oil stabilizing tower and a first heat exchanger, wherein the high-pressure absorption tank is communicated with a base solution output pipe; the base solution output pipe is communicated with the feed port of a reformate stabilizing tower; the reformate stabilizing tower is communicatedwith a base oil output pipe; the base oil output pipe serves as a heat source pipeline; and the base solution output pipe serves as a cold source pipeline and is connected with the first heat exchanger. The catalytic reforming energy-saving method comprises a step of performing heat exchange on a base solution generated by the high-pressure absorption tank with base oil generated by the reformatestabilizing tower as a heat source. The catalytic reforming reaction system comprises the catalytic reforming energy-saving system. According to the catalytic reforming energy-saving system, the catalytic reforming energy-saving method and the catalytic reforming reaction system, system load can be reduced, system energy consumption is reduced, and resource conservation is achieved.

A method and apparatus for processing a hydrocarbon stream are described. The method includes heating a feed stream in a convective bank. The heated feed stream is reacted in a first reaction zone to form a first effluent, which is heated in a first radiant cell. The first radiant cell combusts fuel to heat the first effluent and forms a first exhaust gas. The first exhaust gas is contacted with the convective bank to heat the feed stream. The outlet temperature the heated feed stream from the convective bank is controlled by introducing an additional gas stream into the convective bank. There can be additional reaction zones and radiant heaters.

Processes and apparatuses for relocating a reforming process heater service into the convection section rely on combining a flue gas recycle quench stream with the radiant section off gases entering the convection section. The uniformity of mixing influences the effectiveness of that quench stream. The more effective the quench stream is, the lower the equipment size required to manage the recycle design.