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58results about How to "Achieve flexibility" patented technology

Flexible assembly system for aircraft panel

The invention discloses a flexible assembly system for an aircraft panel. The flexible assembly system comprises a fixed base frame, a movable base frame which is capable of moving in the X-axis direction and is matched with the fixed base frame, a plurality of flexible clamping board assemblies arranged on the fixed base frame and the movable base frame and used for clamping the aircraft panel, a plurality of transmission positioning units arranged on the fixed base frame and the movable base frame and used for adjusting the positions of the flexible clamping board assemblies and robot perforating systems. The positioning assembly requirements of different aircraft panels can be satisfied by adjusting the positions of an inside fixing clamping board and an outside fixing clamping board and replacing a replaceable internal clamping board and a replaceable skin clamping board, and therefore the flexibility of the assembly system is achieved. The two robot perforating systems arranged on the two sides of a panel assembly tool are used for simultaneously satisfying the automatic perforating connecting requirements of the two sides of the aircraft panel. The flexible assembly system is high in flexibility, high-efficiency and high-quality assembly of the aircraft panel can be achieved, the assembly period is greatly shortened, and cost is reduced.
Owner:ZHEJIANG UNIV +1

Method and system for diagnosing and flashing electronic control unit of vehicle

ActiveCN106375175AImprove offline production efficiencyIncrease productivityBus networksUser Datagram ProtocolEthernet
The invention provides a method and a system for diagnosing and flashing the electronic control unit of a vehicle. The method comprises the following steps: an upper computer sends diagnosing and flashing instruction data to a lower computer via an Ethernet bus, wherein the diagnosing and flashing instruction data carries a CAN message for diagnosing and flashing and at least two target CAN bus IDs; the lower computer receives the diagnosing and flashing instruction data, extracts a CAN message in the data, and sends the CAN message to at least two target CAN buses according to the target CAN bus IDs; the lower computer receives a returned CAN response message, packages the CAN response message into an Ethernet data frame, and sends the Ethernet data frame to the upper computer via the Ethernet bus; the upper computer receives the Ethernet data frame, extracts the CAN response message from the Ethernet data frame, and processes the CAN response message; and the upper computer and the lower computer communicate via a user datagram protocol UDP. The electronic control units on multiple CAN buses can be flushed at the same time, and thus, the production efficiency is improved.
Owner:GUANGZHOU AUTOMOBILE GROUP CO LTD

Cloud host domain name dynamical configuration method and system

The present invention discloses a cloud host domain name dynamical configuration method and system. The method comprises that when a cloud host is started, a cloud host management platform selects a public network IP from an IP resource pool, allocates the public network IP address to the cloud host, requests a domain name service (DNS) server to establish a domain name record of the cloud host, indicates an exit device of a cloud data center to configure network address translation (NAT) table items of the cloud host, the NAT table items including a mapping relation between an intranet IP address and the public IP address, and allocating the public IP address distributed to the cloud host onto the exit device; a client end acquires the public IP address corresponding to a domain name of the cloud host from the DNS server, and addresses an access request to the exit device based on the public IP address; and the exit device inquires the NAT table items to acquire the corresponding intranet IP address and address the access request to the cloud host. Cloud host domain name dynamical configuration can be realized.
Owner:CHINA TELECOM CORP LTD

Method, system and equipment for obtaining neology

The present invention discloses a method for getting new word. The method contains the following steps: firstly, the alternative character string is gained from the chart data; and secondly, the alternative character string is filtered according to the preset rule and the filtered words are used as new word. The present invention also discloses a system for getting new word and an instant communication user end and a server which completes the getting of the new word. The present invention has the advantages of easily, effectively and in time automatically getting new word based on the word source of the instant communication, and the new word gotten by the present invention has a boarder service scale.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Machine type communication common message transmission method and device

The invention discloses a machine type communication common message transmission method, which is used for saving network resources and improving system capacity and efficiency. The method comprises that: a network side determines a radio access network (RAN) group corresponding to a machine type communication (MTC) group required to receive a paging message, and acquires a radio network temporary identifier (RNTI) of the RAN group; the network side generates the paging message; and the network side transmits the RNTI and the paging message to MTC terminals in the determined MTC group in a multicast way. The invention also discloses a device for implementing the method.
Owner:CHINA ACAD OF TELECOMM TECH

Physical certifying method and device

The method comprises; setting up a key and a corresponding relation between the operation command and the physical authentication; receiving the operation command; enquiring the key used by the operation command; according to the key, establishing a corresponding relation between the operation command and the physical authentication to get the physical authentication mode corresponding to the operation command; according to the physical authentication mode, initiating a physical authentication operation; if the physical authentication is passed, executing the operation command; otherwise, ending the procedure. The apparatus of the physical authentication comprise: an operation corresponding relation module, a processor, a physical authentication module respectively connected to the processor, an operational calculation module and a data memory module.
Owner:BEIJING WATCH DATA SYST

Language learning method and system based on visual equipment

The invention discloses a language learning method and system based on visual equipment, and the method and system are used for carrying out the language type interactive operation through the intelligent visual equipment. The method comprises the steps: making a teaching video corresponding to teaching contents based on the teaching contents and a corresponding video material; integrating the teaching video on the visual equipment with the function of voice interaction, so that a user learns a language through watching the teaching video played by the visual equipment; receiving a voice content sent by the user, and carrying out the voice recognition of the voice content; entering a voice recognition error correction mode according to a recognition result, or entering an intelligent interactive dialogue mode. The method achieves a purpose of carrying out the language type interaction operation through the intelligent visual equipment, and the user can learn the language freely and autonomously through the visual equipment, thereby solving a problem of weakness of mute learning in conventional language learning, improving the flexibility and convenience of language learning, and improving the user experience to a certain extent.
Owner:宋宇

Method and device for enhancing uplink coverage, and base station

The invention discloses a method and a device for enhancing uplink coverage, and a base station. The method comprises the step that a network side controls UE (user equipment) to use more than two HARQ (hybrid automatic repeat request) processes to transmit the same UL (uplink) transmission block. According to the method disclosed by the invention, the base station controls the UE to use more than two HARQ processes to transmit the same UL transmission block and controls the enhancement of the uplink coverage by controlling the cluster length of the TTI (transmission time interval) and the maximum trial transmission times of the HARQ processes, so that not only can the coverage performance of the UL be improved, but also the flexibility of the resource allocation can be realized.
Owner:ZTE CORP

System for achieving remote monitoring by means of WiFi-based intelligent equipment

The invention belongs to the field of smart homes, and discloses a system for achieving remote monitoring. The system is composed of the WiFi-based intelligent equipment, a WiFi network bridge module, a communication module and a control terminal. The WiFi network bridge module is in wireless communication connection with the WiFi-based intelligent equipment through WiFi signals, is connected with the communication module, and is used for playing a role in network bridge connection between the WiFi-based intelligent equipment and the communication module. The communication module has access to the Internet and builds remote connection with the control terminal through the network tunneling technology. A network channel is built for the control terminal and the WiFi network bridge module. According to the system, remote monitoring is achieved through short-distance controllable WiFi remote control products, and the system has the advantages of being low in price, simple in structure, convenient to use and the like. The problems that the varieties of current remote mobile monitoring terminal equipment are few, the whole system is high in cost, and the technical threshold is high are solved, and meanwhile the problem that most WiFi-based intelligent equipment on sale in the current market cannot be remotely controlled through the Internet is solved.
Owner:吴华瑜

Comprehensive training scene for nuclear power station personnel security skill

The invention discloses a comprehensive training scene for a nuclear power station personnel security skill. The comprehensive training scene comprises a training scene body and a training assembly located in the training scene body. The training scene body comprises a training plant, a first training platform, a second training platform and an airtight chamber. The first training platform, the second training platform and the airtight chamber are arranged in the training plant. The training plant comprises a floor, a ceiling and cement walls. The training assembly comprises a limited space training module and others. Each training module in the training assembly in the comprehensive training scene for the nuclear power station personnel security skill is a complete comprehensive training subject, the training modules can be detached or combined according to different requirements, and flexibility of training the security skill is achieved. In this way, single equipment using method introduction can be replaced with all the complete comprehensive training subjects in a nuclear power station training center, then nuclear power station personnel can personally practice and experience regulated security behaviors and master the comprehensive security protection skill, and the security awareness and behavior regulation of the nuclear power station personnel are actually improved.
Owner:CHINA GENERAL NUCLEAR POWER OPERATION +1

Modifying agent used for strengthening dimensional stability of compound wax emulsion of quick-growing wood

The invention discloses a modifying agent used for strengthening dimensional stability of compound wax emulsion of quick-growing wood. The modifying agent is prepared from the following raw materials in parts by weight: 3-3.5 parts of formaldehyde, 2-3 parts of urea, 1.5-2 parts of hexamethylenetetramine, 0.02-0.03 part of maleic anhydride, a proper amount of acetic acid, a proper amount of ammonia water, a proper amount of deionized water, 20-23 parts of dihydroxymethyl dihydroxyl ethylene urea with solid content being 42wt%, 1.5-2 parts of magnesium chloride hexahydrate, 10-11 parts of silica sol, 3-4 parts of paraffin, 2-3 parts of microcrystalline wax, 3-4 parts of fatty alcohol-polyoxyethylene ether and 2-2.5 parts of polyvinyl alcohol. The modifying agent disclosed by the invention is good in stability, is safe and environmentally-friendly and is suitable for industrial production; impregnation pressure treatment is carried out on the quick-growing wood, so that the modifying agent can penetrate into the wood to achieve waterproof and flexible effects, and therefore, the modified wood is not liable to crack, is resistant to moisture, is good in dimension stability; and furniture manufactured from the wood is strong and durable in use, is waterproof and mildew-proof, and can be used outdoors.
Owner:FUYANG WEIYE FURNITURE

Data processing, block generation and synchronization method for block link networks

A data processing, block generation and synchronization method for block link networks, a computing device, and a storage medium are provided, the data processing method includes: A. generating a deletion flag indicating deleted block data in response to deletion of block data stored in a preset storage space accessible by at least one block chain node in a block chain network, the block data being associated with a target block; B. adding that deletion mark into the deleted data list, and store the deleted data list in the preset storage space. The technical proposal of the invention can realize the deletion of the block data associated with each block in the block chain.
Owner:SHANGHAI DIANRONG INFORMATION TECH CO LTD

Method for reorienting network communication port and network communication system

This invention discloses one method and network communication system to network communication position, which comprises the following steps: when receive end determines communication end for position, then sending set address to send end through communication terminal, wherein, re-position address composed of position end address; achieving receive end through re-position end address information end, wherein, the said receive end address comprises original address, management send end or new agreement receive address; the send end tests the said position address through position end address information to communicate to end.
Owner:HUAWEI TECH CO LTD

Mold for Producing Fiber-Reinforced Components

A mold for a production device for production of fiber-reinforced components by means of an injection process is provided. The mold has a mold surface to form a surface of the fiber-reinforced component, the mold surface having a first partial area and a second partial area and in which the mold has an injection area for injection of matrix material into fibrous material situated on the mold surface through the second partial area of the mold surface and evacuation area for evacuation of a mold volume bounded by the mold through the first partial area of the mold surface.
Owner:EADS DEUT GMBH

Method for selective toluene disproportionation and transalkylation of benzene and C9 aromatics

The invention relates to a method for selective toluene disproportionation and the transalkylation of benzene and C9 aromatics and mainly solves the problems of low paraxylene concentration in mixed xylenes, large aromatic hydrocarbon processing circulating volume, strict reaction raw material requirements and high energy consumption in the production of paraxylene in the prior art. The invention adopts a technical scheme that: in the mixed raw materials separated from a reforming unit, the C9 aromatics and a third fraction of benzene enter a benzene and C9 aromatic transalkylation technical unit to undergo a dealkylation reaction to form a section fraction of benzene, a second fraction of toluene and a second fraction of C8 aromatics; the toluene enters a selective toluene disproportionation unit to undergo a selective disproportionation reaction to form C8 aromatics and benzene homolog flow containing the paraxylene, a third fraction of C8 aromatic, a third fraction of toluene and the third fraction of benzene are obtained, and the third fraction of toluene is returned to the selective toluene disproportionation unit; and the C8 aromatics separated from the reforming unit, the second fraction of C8 aromatics and the third fraction of C8 aromatics are mixed and delivered to a paraxylene separation unit to obtain the paraxylene. According to the technical scheme, the problem is well solved, and the method can be used in the production of the paraxylene.
Owner:CHINA PETROLEUM & CHEM CORP +1

Clinical medication behavior analysis system based on efficient negative sequence mining mode and working method thereof

The invention relates to a clinical medication behavior analysis system based on an efficient negative sequence mining mode and a working method thereof. The clinical medication behavior analysis system comprises a data acquisition system and a behavior analysis system; the data acquisition system comprises a data acquisition module and a data transmission module; the data acquisition module acquires and stores clinical medication behavior data in real time; the data transmission module transmits the clinical medication behavior data to the behavior analysis system; the behavior analysis system comprises a data processing module, a data analysis module and a data management module; the data processing module performs data cleaning on the clinical medication behavior data and performs data classification; the data analysis module performs analysis and prediction; and the data management module stores and displays the analysis result and recommends the next medication. According to the invention, the eNSP-IT algorithm is applied to clinical medication behavior analysis, so that the negative sequence relationship among medicine can be found out more quickly, the next medication of a patient can be predicted better, and clinical decisions based on the change of a medicine scheme are supported.
Owner:QILU UNIV OF TECH

Electric locomotive harmonic suppression method

An electric locomotive harmonic suppression method comprises: performing direct current component separation of alternating current transmitted by a primary side of a traction transformer, and obtaining first direct current components and second direct current components of harmonic currents with the preset number of times of the alternating current; employing a PI regulator to generate a harmonicvoltage regulating variable according to the first direct component and the second direct current component of each harmonic current of the alternating current; performing overlapping of the harmonicvoltage regulating variable and an output fundamental wave voltage of a grid-side converter to obtain a target output voltage of the grid-side converter, and outputting a control instruction corresponding to the target output voltage to control the grid-side converter to generate a compensation current so as to offset harmonic currents included in the alternating current. Harmonic currents in a high-voltage electric network are subjected to suppression at a secondary side of a traction transformer, and compared to a current electric locomotive harmonic suppression method, the electric locomotive harmonic suppression method is more flexible in realization and is higher in reliability and safety.
Owner:CSR ZHUZHOU ELECTRIC LOCOMOTIVE RES INST

Memory freeing method and device

The invention discloses a memory freeing method and device and belongs to the technical field of terminals. The method comprises the steps that progresses are established for application programs, wherein the progresses at least comprise a background running progress and a temporary progress, the background running progress occupies a first memory, and the temporary progress occupies a second memory; if a terminal is in a screen lock state, whether the temporary progress meets a memory freeing condition is judged; if the temporary progress meets the memory freeing condition, the temporary progress is shut down so that the second memory occupied by the application program can be freed. According to the memory freeing method and device, when the terminal is in the screen lock state, the second memory occupied by the application program is freed according to judgment of whether the temporary progress of the application program meets a memory freeing condition or not, the memory is freed according to the memory freeing condition under the condition that normal running of the application program is not affected, and implementation is flexible.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Compact shelving

The invention discloses a compact shelving which comprises a shelving body, a door body, a height adjusting part, a vacuum device, a temperature and humidity detection device and a book end, wherein the height adjusting part is arranged at the upper end of the shelving body and can move up and down by virtue of a front guide rail and a rear guide rail; at least two grooves used for draining and drying are formed in the bottom of the shelving body; the grooves are connected with valves by virtue of pipelines; the shelving body, the height adjusting part and the door body are in seal fit so as to form a closed pressure-resistant drying chamber; the temperature and humidity detection device is arranged inside the shelving body; at least two layers of partition plates are arranged inside the shelving body; the book end is arranged on the partition plates; and the book end is arranged on the partition plates by virtue of trapezoidal sliding rails. According to the compact shelving disclosedby the invention, by improving the structure of the compact shelving, on the one hand, a dry environment in the compact shelving is realized, and the quality of saved data is ensured; on the other hand, the flexibility of the compact shelving is realized, so that the compact shelving can adapt to data of different sizes.
Owner:JIANGXI BAILIAN STEEL PROD

Frictional force demonstrator

The invention discloses a frictional force demonstrator which comprises the components of a horizontal table, a sliding device, a displacement sensor, a motor pulling device, a friction block, a forcemeasuring device, a pointer, a first display device, a switch panel, a second display device, a chute, an amplifying device, an image acquisition device, a computer, a projector, a printer, a blackboard writing device, a projection device and a horizontal measuring device. According to the frictional force demonstrator, according to the indicating condition of the pointer on a scale plate, and amplifying a relation between a slide block pulling time by the motor pulling device and a movement distance of the slide block on the first display device, a relative motion trend direction and a relative motion direction are determined through observing a burr direction on a burr flexible plate by a magnifier, and furthermore the burr direction on the burr flexible plate in a continuous time period in the relative motion trend and the relative movement is acquired through the image acquisition device, and furthermore a burr direction image is amplified and displayed on a projection cloth curtain, thereby quickly, visually and accurately demonstrating the frictional force direction and the relative movement trend direction.
Owner:王佳愉

Dietary information recommendation method

The invention relates to a dietary information recommendation method. The method comprises steps: the expected price information of family diet is acquired; the physiological information of an individual family member is acquired, and based on the physiological information, nutritional information needed by each individual member is acquired; the preference information of each individual member and the seasonal food material information are acquired, a recommended dietary list is generated, the nutritional information corresponding to the recommended dietary list is matched with the nutritional information needed by each individual member, and the price information corresponding to the recommended dietary list is matched with the expected price information; and the recommended dietary listis selected by each individual member according to a price descending order or a price ascending order. Through acquiring the expected price information of the family diet, the nutritional information needed by each individual member, the preference information and the seasonal food material information, and in combination of the expected price information, the nutritional information, the preference information and the food material information, the dietary list which meets the requirements is generated for being selected by the individual member, and the effect of multi-angle and flexible recommendation is achieved.
Owner:SUZHOU UNIV

Flight information sending method and system

The invention discloses a flight information sending method and system. The method comprises the steps that a business event trigger source is monitored; according to the monitored business event trigger source, a relevant message template ID is triggered and screened from a rule base; according to a parameter item configured in a message template corresponding to the message template ID, a corresponding parameter value is extracted from the flight information corresponding to the flight ID, the parameter item of the message template ID is filled with the extracted parameter value of the flight information, and corresponding message content is generated; a corresponding message receiving object is obtained according to the flight ID and the message template ID, and a corresponding sending way is extracted according to the message template ID; the message content is sent to the corresponding message receiving object in the corresponding sending way. According to the method, airport flight information content can be flexibly configured, the information content is directly sent to a terminal where the designated message receiving object is located, and the problem of mistaken listening and mistaken propagation of a message in a telephone transmission process is avoided.
Owner:CIVIL AVIATION AIRPORT GRP CO LTD OF INNER MONGOLIA AUTONOMOUS REGION

Intelligent traffic monitoring method for mobile phone

The invention discloses an intelligent traffic monitoring method for a mobile phone, comprising a mobile phone traffic counting service procedure, a mobile phone traffic counting service procedure, a mobile phone traffic information storage procedure, a mobile phone traffic information charging service procedure and a mobile phone traffic cost display procedure; in the mobile phone traffic counting service procedure, the data traffic of the mobile phone needing to be monitored is counted; in the mobile phone traffic information analysis procedure, mobile phone receiving traffic is analyzed, and a monitored object management list is created; in the mobile phone traffic information storage procedure, mobile phone traffic data analyzed by the mobile phone traffic information analysis procedure is stored; in the mobile phone traffic information charging service procedure, the data stored by the mobile phone traffic information storage procedure is calculated; in the mobile phone traffic cost display procedure, the calculated mobile phone traffic cost is displayed, and final data is automatically generated in a corresponding management list. The method is easy to operate, convenient to use and high in safety.
Owner:NINGXIA XINHANG INFORMATION TECH

Multiple specific musical instrument strengthening separation method in single-channel music human voice separation

The invention relates to a multiple specific musical instrument strengthening separation method in single-channel music human voice separation. The method can used in strengthening separation of eight types of musical instruments, i.e., an electric guitar, a clarinet, a violin, a piano, a wooden guitar, an organ, a flute and a trumpet; and the strengthening separation is achieved through a layer of single-musical-instrument separators and three layers of multi-musical-instrument combined music enhancers, the first-layer multi-musical-instrument combined music enhancers can separate two types of musical instrument sounds, the second-layer multi-musical-instrument combined music enhancers can separate four types of musical instrument sounds, and the third-layer multi-musical-instrument combined music enhancers can separate eight types of musical instrument sounds. A DRNN is used as a core of the single-musical-instrument separators, and different DRNN models are established for the different single-musical-instrument separators; a BP network is taken as a core of the multiple musical instrument separators to achieve separation of the multiple musical instruments at the same time; and, finally, a construction method aiming at different training samples of the single-musical-instrument separators of a system is provided. The method is simple and flexible and has high practicability.
Owner:FUZHOU UNIVERSITY

Right setting method and device

Embodiments of the present application disclose a right setting method and device. The method is applied to a service including at least two layers, and the service in each layer is provided with a management right and a readable right. The method comprises the following steps: obtaining the right of the user to the service for each level of the service; Determining that the user has a first rightconfiguration qualification and a second right configuration qualification for the service when the user has a management right for the service, The first right configuration qualification being qualification of a whitelist capable of setting a readable right of the service, The second right configuration qualification being qualification to set a whitelist of readable rights and / or a whitelist of management rights of a service at a next level of the service. By adopting the embodiment of the present application, the flexibility of the right setting can be realized and the efficiency of the right setting can be improved.
Owner:TENCENT TECH (SHENZHEN) CO LTD

Method for planting gastrodia elata in greenhouse

InactiveCN106212011AAchieve flexibilityEffective use of land resourcesPlant cultivationCultivating equipmentsHoney mushroomScattered light
The invention discloses a method for planting gastrodia elata in a greenhouse. The method comprises the steps of mushroom stick making, site building, greenhouse building, gastrodia elata cultivation and planting management. The greenhouse and a cement pit are built on an open field for gastrodia elata cultivation, site selection flexibility is realized, and greenhouse building permanency and cement pit building practicality are realized. By the adoption of the method, standardized cultivation can be achieved, land resources can be effectively utilized, and manpower and materials are saved; by planting gastrodia elata in the cement pit, complete isolation of honey mushroom sticks and soil can be achieved, soil contamination is effectively controlled, influences of soil heavy metal and pesticide residues on mushroom sticks are avoided, and therefore the greenhouse can be used permanently. Gastrodia elata cultivated with the method is low in contamination rate, high in yield and low in cost. By adopting an anti-drop film and a heat insulation plastic film for covering, heat insulation can be achieved, uniform scattered light is available for the interior of the greenhouse, and gastrodia elata and mushroom sticks can grow well.
Owner:JIANGSU DAOCHENG BIOTECH CO LTD

Delivery locker operation guide method and device, delivery locker and storage medium

The invention discloses a delivery locker operation guide method and device, a delivery locker and a storage medium. The delivery locker operation guide method comprises the following steps: acquiringcurrent operation information of a user for a delivery locker and identity information of the user, wherein the current operation information includes operation time and an operation option; matchingthe identity information with preset identity tags, wherein the identity tags correspond to operation options one by one; if the matching succeeds, judging whether the operation time is within the effective time of an operation guide corresponding to the operation option or not; and if the operation time is within the effective time of the operation guide, starting the operation guide corresponding to the operation option. Through matching of the identity information and the preset identity tags, the problem concerned with personalization of the operation guide is solved; the operation guidecan be implemented according to different operation demands of different users; and the delivery locker operation experience of the users is improved.
Owner:SHENZHEN HIVE BOX TECHNOLOGY CO LTD

Combination method for increasing yield of p-xylene in aromatic hydrocarbon production

The invention relates to a combination method for increasing the yield of p-xylene in aromatic hydrocarbon production, which mainly ensures that the problems of low concentration of p-xylene in mixed xylenes, large aromatic hydrocarbon processing circulating amount, high requirements on reaction raw materials, high energy consumption and the like in aromatic hydrocarbon production are solved. The technical scheme of the method is as follows: mixed raw materials separated from a reforming unit are adopted; C-9 aromatic hydrocarbon and a third flow of benzene, which are separated from the reforming unit, enter into a benzene and C-9 aromatic hydrocarbon alkyl transfer unit so as to be subjected to dealkylation reaction to generate a second flow of benzene, a second flow of toluene and a second flow of C-8 aromatic hydrocarbon; toluene selectivity disproportionated reaction is carried out in all toluene selectivity disproportionation units to generate C-8 aromatic hydrocarbon containing p-xylene and benzene flows, thus obtaining a third flow of C-8 aromatic hydrocarbon, a third flow of toluene and a third flow of benzene, wherein the third flow of benzene is returned to the toluene selectivity disproportionation units; the C-8 aromatic hydrocarbon and the second flow of C-8 aromatic hydrocarbon, which are separated from the reforming unit are mixed and then delivered to an absorptive separation unit so as to obtain a fifth flow of C-8 aromatic hydrocarbon; and the third flow of C-8 aromatic hydrocarbon and the fifth flow of C-8 aromatic hydrocarbon are delivered to a crystallization separation unit so as to obtain a fourth flow of C-8 aromatic hydrocarbon and pure p-xylene, wherein the fourth flow of C-8 aromatic hydrocarbon is returned to the absorptive separation unit. The problems of the prior art can be solved, and the combination method can be used for p-xylene industrial production.
Owner:CHINA PETROLEUM & CHEM CORP +1
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