79results about How to "Improve heterogeneous performance" patented technology

The present invention provides method of producing food grade white oil with hydrogenated tail oil. Hydrogenated tail oil as material is treated through one high pressure hydrogenating and refining process under proper condition to obtain the food grade white oil product. The hydrogenated tail oil is produced with vacuum gas oil, refined solvent oil or Fischer-Tropsch synthesized oil as material and through hydrocracking or hydrotreating process under the action of hydrogenating catalyst, and has pour point lower than -10deg.c.

An embodiment of the present invention provides a data processing method and apparatus. The data processing method is applied to a scene that a hardware processing unit accelerates business data sent by a host; the method is implemented by the hardware processing unit and comprises the following steps of: receiving a request message passing through a driving layer of the host and sent by a business layer of the host, wherein the request message comprises at least one acceleration type identification and to-be-accelerated business data, and each acceleration type identification corresponds to an acceleration processing; performing at least one type of acceleration processing, in one-to-one correspondence with the at least one acceleration type identification, on the business data. According to the method, the interaction between the business layer of the host and the hardware processing unit does not need dedicated drive for cooperation, so that the dependence of the business layer on specific bottom layer driving can be shielded; the hardware processing unit in the method can run in different business platforms, and the heterogeneous capability of logic is enhanced, so that the dynamicity and flexibility in a business processing process can be improved.

The invention discloses a beta molecular sieve and a preparation method thereof. According to the method, after a crystallized beta molecular sieve slurry directly undergoes ammonium exchange and a template agent removal treatment, first a hydrothermal treatment is conducted, and then an aluminum salt solution treatment is carried out, so that part of non-framework aluminum can be removed uniformly under the condition of maintaining a high beta molecular sieve crystallinity. Thus, the obtained beta molecular sieve can has the characteristics of high silicon-aluminum ratio, large specific surface area, appropriate acidity and acid distribution, and reasonable pore structure, etc., and especially has a suitable cracking effect and a very good isomerization effect on long-chain alkane and the long side chain alkyl of aromatic hydrocarbon and cyclane. A hydrocracking catalyst prepared from the beta molecular sieve can substantially reduce the condensation point of diesel oil fraction while maintaining a high diesel oil yield, thus achieving the effect of increasing the yield of low condensation point diesel oil.

The invention discloses a hydrocracking catalyst and a preparation method thereof. The hydrocracking catalyst comprises a carrier and a hydrogenation active metal component, wherein the carrier comprises a beta molecular sieve, an SBA-15 molecular sieve, amorphous silica-alumina and an adhesive; properties of the beta molecular sieve are as follows: the mole ratio of SiO2 to Al2O3 is 60-100, the specific surface area is 505-850m<2> / g, the pore volume is 0.35-0.60mL / g, and the relative crystallinity is 100-148%; the relative crystallinity of the beta molecular sieve is greater than 95% after steam hydro-thermal treatment. As the beta molecular sieve and the SBA-15 which are high in crystallinity degree, high in silica-alumina ratio and good in stability are adopted as acid components of the carrier, the hydrocracking catalyst disclosed by the invention has the characteristics of high activity, good medium oil selectivity and good product properties.

The invention discloses a hydroisomerization pour-point-depressing deep-coupling process for producing low-pour-point diesel oil. The process comprises the following steps: mixing a diesel oil raw material and hydrogen; then successively allowing the mixture to pass through at least two tandem hydrogenation reaction zones, wherein each hydrogenation reaction zone successively includes a composite catalyst bed layer filled by a mixture of a hydrodewaxing catalyst and a hydro-upgrading isomerization pour-point-depressing catalyst, and a hydrofining catalyst bed layer according to a flow direction of the materials; and finally, subjecting an obtained reaction effluent of the last hydrogenation reaction zone to separation and fractionation so as to obtain the low-pour-point diesel oil. The method provided by the invention reasonably utilizes temperature rise in upgrading pour-point-depressing process and temperature drop in hydrodewaxing process, so clean low-pour-point diesel oil is produced; meanwhile, the yield and cetane number of the diesel oil are improved; hot-spot temperature of a device is reduced; and operation cycle is prolonged; moreover, consumption of cooled hydrogen and fuel gas loss of a heating furnace are reduced, and operation cost is saved.

The invention discloses a preparation method of a hydrocracking catalyst. The preparation method includes the steps of preparing a supporter and supporting a hydrogenation active metal component, wherein the supporter is prepared by knead-moulding a [beta] molecular sieve, a SBA-15 molecular sieve, amorphous silica alumina, and a binder. The [beta] molecular sieve is prepared through the steps of: preparing an amorphous silica alumina precursor through a specific acid-alkali precipitation method, adding water, a silicon source and a template agent to prepare silicon aluminum gel; and performing two-step dynamic crystallization, and performing ammonium salt exchange and template agent removal to prepare the [beta] molecular sieve. The hydrocracking catalyst is prepared with the [beta] molecular sieve and the SBA-15 molecular sieve which are high in crystallization degree, high in silicon aluminum ratio and good in stability, so that the catalyst is good in activity, high in medium oil selectivity and good in product quality.

The present invention provides one-section hydrogenation process for producing food level white oil. By using vacuum gas oil, deasphalted solvent oil and Fischer-Tropsch process oil as material, and hydrogenating catalyst containing modified beta-molecular sieve in 1-9 wt%, and through hydrocracking or hydrogenating, hot high pressure separating out gas and light distillate to obtain liquid product, mixing with newly formed hydrogen, and high pressure hydro-finishing in a reactor with loaded reduction type hydrogenating catalyst, food level white oil is produced. The process is simple and has high product quality.

The invention discloses a hydrocracking catalyst carrier and a preparation method thereof. The carrier comprises a beta molecular sieve, an SBA-15 molecular sieve, amorphous aluminum silicon and an adhesive, wherein according to the beta molecular sieve, the molar ratio of SiO2 / Al2O3 is 60-100, the specific area is 505-850 m<2> / g, the pore volume is 0.35-0.60 mL / g, and the relative crystallinity is 100-148%; the relative crystallinity obtained after steam hydro-thermal treatment of the beta molecular sieve is 95% or above. The carrier adopts the beta molecular sieve with the good crystallinity, high silica-alumina ratio and stability and SBA-15 as the acid component of the carrier, and the obtained hydrocracking catalyst has the advantages of being high in activity, good in middle oil selectivity and good in product characteristic.

The invention discloses an optimized diesel hydrocracking catalyst and a preparation method thereof. The optimized diesel hydrocracking catalyst is prepared from the following raw materials in percentage by weight: 1 to 25 percent of a modified molecular sieve, 10 to 65 percent of gamma-Al2O3, 15 to 70 percent of amorphous silica-alumina, 9 to 40 percent of an adhesive and 10 to 35 percent of active metal oxide. The catalyst has a specific surface area of 200 to 400m<2> / g and a total pore volume of 0.30 to 0.65cm<3> / g. The catalyst is obtained by adding the modified molecular sieve into an inorganic aluminum salt solution for preparing the gamma-Al2O3, performing precipitation, drying and calcination to obtain a composite material of the molecular sieve and the gamma-Al2O3, and performing mixing, rolling, forming, drying and activating on the other materials and the composite material according to the material proportion of the catalyst. The molecular sieve in a catalyst carrier of the catalyst is high in silica-alumina ratio, high in dispersity in the carrier and large in specific surface area, so that the carrier has more uniform acidic sites; alumina makes contact with the molecular sieve more closely, so that the condensation point of a diesel distillate can be obviously reduced and the cetane number of diesel can be increased on the premise of ensuring high yield of the diesel.

The invention discloses a lignin hydro-cracking catalyst which comprises an H beta molecular sieve and a hydrogenating active metal component, wherein the hydrogenating active metal component belongs to a group VIB and / or a group VIII; the pore volume of the catalyst is 0.5-0.8 mL / g, the total specific surface area is 600-800 m<2> / g, the mesoporous specific surface area is 400-450 m<2> / g, and the micropore specific surface area is 300-370 m<2> / g; the H beta molecular sieve has the following properties that the molar ratio of SiO2 to Al2O3 is 60:100, the specific surface area is 700-900 m<2> / g, the pore volume is 0.6-0.9 mL / g, and the relative crystallinity is 100-148 percent. The catalyst is prepared by adopting an impregnation method. The catalyst adopts a beta-type molecular sieve with high silica-alumina ratio, high crystallinity, large specific surface area and a special channel structure as an acidic component and has higher reaction activity and higher liquid yield for lignin hydro-cracking.

The invention relates to a method for hydrogenating naphthenic base distillate to produce lubricating oil basic oil. The naphthenic distillate is used as raw material and a one-stage in series hydrogenation process of hydrotreating-hydrodewaxing-hydrofinishing is adopted to produce the lubricating oil basic oil. Ordinary hydrotreating catalysts are filled in the upper part of a hydrotreating reaction area, and hydrotreating catalysts containing modified zeolites are filled in the lower part of the hydrotreating reaction area. The hydrodewaxing and hydrofinishing reaction areas are the same as those of the prior art, and are filled with hydrodewaxing catalysts and hydrofinishing catalysts. Compared with the prior art, the method disclosed by the invention has the advantages that system energy consumption is reduced, the pour point of a product is properly reduced, and the stability of the product is effectively improved.

The invention discloses a preparation method of a hydrocracking catalyst carrier. The preparation method comprises the following steps: mixing and kneading beta molecular sieve, SBA-15 molecular sieve, amorphous silica-alumina and a binder for molding to prepare the hydrocracking catalyst carrier; the beta molecular sieve is prepared as follows: adopting a specific acid-base precipitation method to prepare an amorphous silica-alumina precursor, then adding water, a silicon source and a template agent to obtain a silica-alumina gel, and after two-step dynamic crystallization, preparing the beta molecular sieve by ammonium salt exchange and template release agent treatment. The hydrocracking catalyst carrier adopts the beta molecular sieve and the SBA-15 molecular sieve with high crystallinity, high Si / Al ratio and good stability as acidic components, and hydrocracking catalysts prepared by the hydrocracking catalyst carrier have the advantages of high activity, high middle oil selectivity and good product quality.

The invention relates to the field of household appliance control, and specifically relates to a household appliance control method and device, a storage medium, a household appliance control system and a terminal. The method comprises the steps of acquiring the current environmental parameter fed by a household appliance; calculating a target environmental parameter according to a fuzzy clustering analysis model in response to an environmental parameter adjustment instruction sent by a client, and generating an environmental parameter adjustment scheme containing the target environmental parameter; and sending the environment parameter adjustment scheme to the household appliance, and controlling the household appliance to adjust the current environmental parameter of the household appliance to the target environmental parameter according to the environmental parameter adjustment scheme. According to the method, the diversity and the heterogeneity of household appliance control can beimproved, personalized requirements of different users are met, and finally, the purpose of enabling the user to obtain the optimal somatosensory comfort is achieved.

The present invention discloses a hydrocracking catalyst preparation method, which comprises: (1) carrying out a hydrothermal treatment on an ammonium type Y molecular sieve; (2) washing the molecular sieve obtained in the step (1) in a mixed solution of nitric acid and ammonium nitrate, adding alumina powder and / or amorphous silicon-aluminum powder, uniformly mixing, completely rolling, molding, drying, and calcining to obtain a catalyst carrier; and (3) impregnating the catalyst carrier obtained in the step (2) with an impregnating solution containing an active metal component, drying, and calcining to obtain the hydrocracking catalyst. According to the present invention, the isomerization performance of the prepared catalyst is improved, and the preparation process has characteristics of simple operation, low cost, and environmental protection.

The invention discloses a preparation method of a medium-oil hydrocracking catalyst carrier. The method comprises the steps that a beta-molecular sieve, a Y-molecular sieve, amorphous silica-alumina and a bonding agent are mixed, molded, dried and calcined to prepare the carrier, wherein the beta-molecular sieve is prepared through the steps that an amorphous silica-alumina precursor is prepared by adopting a specific acid-base precipitation method, then water, a silicon source and a template agent are added to obtain silica-alumina gel, two steps of dynamic crystallization, ammonium salt exchanging and template removing agent treating are sequentially conducted, and then the beta-molecular sieve is prepared. The beta-molecular sieve prepared through the method has the advantages of being high in crystallinity degree and silica-alumina ratio and good in stability, and the hydrocracking catalyst carrier prepared by taking the beta-molecular sieve as an acidic component of the hydrocracking catalyst carrier has the advantages of being good in activity, high in medium oil selectivity and good in product quality.

The invention discloses an improved diesel oil hydrocracking catalyst carrier and a preparation method thereof. Raw materials of the carrier comprise the following components in percentages by weight: 3-35% of a molecular sieve, 5-75% of gamma-Al2O3, 15-75% of amorphous silica-alumina and 7-40% of an adhesive; the specific surface area of the carrier is 200-450m<2> / g, and the total pore volume is 0.35-0.75cm<3> / g. In a process of preparing a molecular sieve and aluminum oxide compound material, the molecular sieve without a template is added. In a mixed liquid, NH4<+> generated by ammonia salt and ammonia water and alkali Na<+> balancing negative charges of a molecular sieve framework exchange; in a roasting process, an organic template in the molecular sieve and NH4<+> are removed, so that ammonium exchange and template removal of a zeolite molecular sieve in a process of preparing the compound material are realized without independently using the molecular sieve for ammonium exchange and template removal. The template plays supporting and protecting roles on a dust structure of the molecular sieve. The hydrocracking catalyst carrier prepared by the carrier can remarkably reduce the condensation point of a diesel fraction and improve the cetane number of the diesel oil on the premise of guaranteeing a high yield of diesel oil.

The invention discloses a processing method of Fischer-Tropsch synthetic oil. Fischer-Tropsch synthetic oil is used as a raw material, and a two-stage hydrogenation process of hydrofining-hydro-upgrading-isodewaxing is adopted to produce API III <+> lubricating oil base oil. Generated oil obtained through separation of a hydrofining-hydro-upgrading reaction effluent enters an isodewaxing reactionzone, and different types of API III <+> lubricating oil base oil products are obtained through separation and fractionation of an isodewaxing reaction effluent. The method has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthetic oil fraction hydrogenation.

The invention discloses a method for producing clean low freezing point diesel oil by treating high nitrogen diesel oil. The method comprises: after mixing a diesel oil raw material with hydrogen, sequentially feeding the mixture through at least two serial hydrogenation reaction regions, wherein each of the hydrogenation reaction regions according a material flowing direction sequentially comprises a hydrogenation refining catalyst bed layer and a compound catalyst bed layer mixed and filled with a hydrodewaxing catalyst and a hydrogenation modified isomerization-visbreaking catalyst; and separating and fractionating a reaction effluent obtained in the last hydrogenation reaction region to obtain the low freezing point diesel oil. According to the method disclosed by the invention, temperature rise in a modified depressing process and temperature drop in a hydrodewaxing process are reasonably utilized,so that the yield and cetane number of the diesel oil are improved while the low freezing point diesel oil is produced, and therefore, the hot-spot temperature is reduced and the operating period is prolonged. In addition, the consumption of cold hydrogen or the gas loss of a heating furance is reduced, and the operating cost is further lowered.

The invention provides a two-stage multi-layer resource scheduling method and system for mimicry defense, and the method comprises the steps: a scheduling object is built in a mimicry system, wherein the scheduling object comprises an executor deployment scheme, a backup executor pool and a work executor group; and two-stage scheduling is carried out among the three, a plurality of scheduling strategies are adopted to determine a multi-layer scheduling target, and scheduling services of an executor and resources are provided for the mimicry system in the stages of creation, initialization and executor cleaning and recovery. According to the method, the randomness and the isomerism of the scheduling result are improved through two-stage scheduling of the execution body deployment scheme and the backup execution body. Multi-layer scheduling is formed by comprehensively using multiple scheduling strategies, and scheduling in multiple scenes such as mimicry system initialization and cleaning recovery is met.

The invention discloses a processing method of Fischer-Tropsch synthetic oil. Fischer-Tropsch synthetic oil is used as a raw material, and a two-stage hydrogenation process of hydrofining-hydro-upgrading-isodewaxing is adopted to produce API III <+> lubricating oil base oil. Heavy distillate oil generated oil obtained through hydrofining-hydro-upgrading reaction effluent separation enters an isodewaxing reaction zone, and an isodewaxing reaction effluent is subjected to separation and fractionation to obtain different types of API III <+> lubricating oil base oil products. The method has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthetic oil fractionhydrogenation.

The invention discloses a hydrocracking catalyst carrier and a preparation method thereof. The carrier contains a beta molecular sieve, a Y type molecular sieve and aluminum oxide, wherein the natures of the beta molecular sieve are as follows: the molar ratio of SiO2 / Al2O3 is 30-150, non-framework aluminum accounts for below 2% of total aluminum, and silicon atoms coordinated by a Si(OAl) structure account for above 95% of the silicon atoms in a framework structure. The preparation method comprises the following steps: mixing the beta molecular sieve, the Y type molecular sieve and aluminum oxide and forming for preparation. In the catalyst disclosed by the invention, the beta molecular sieve with a uniform framework silica-alumina structure and the Y type molecular sieve are jointly used as a cracking component, and the prepared catalyst has the characteristics of high activity, high yield of high-quality intermediate fraction oil and capability of simultaneously co-producing high-quality hydrogenation tail oil in a hydrocracking process.

The present invention provides one-section hydrogenation process for producing food level white oil. By using vacuum gas oil, deasphalted solvent oil and Fischer-Tropsch process oil as material, and hydrogenating catalyst containing modified beta-molecular sieve in 1-9 wt%, and through hydrocracking inside a hydrocracking co-current reactor to obtain reaction product, hydrorefining in a countercurrent hydrorefining reactor with flash region to exhaust gas and liquid hydrocarbon, the reverse contact reaction between the downward flowing liquid hydrocarbon and the bottom entering newly formed hydrogen in the bed layer with reduction type hydrogenating catalyst, and final gas-liquid separation and product distillation, food level white oil is produced. The process is simple and has high product quality.

The invention provides a Web communication data transmission method, a server, a client and a system. The method includes the following steps that: after a communication request sent by a client is received, a source data to be transmitted is decomposed into n data blocks, and the lengths of the n data blocks are sequentially recorded according to a decomposition sequence, so that a first label can be obtained, the n data blocks are combined multiple times according to a preset confusing algorithm, so that a plurality of heterogeneous data can be obtained, and the lengths of the n data blocksare sequentially recorded according to a combination sequence, so that a plurality of second labels which are in one-to-one correspondence with the plurality of heterogeneous data are obtained; the first label, the heterogeneous data, and the second labels are stored and sent to the client, so that the client can perform analysis according to the first label, the heterogeneous data, and the secondlabels to obtain the source data to be transmitted. According to the Web communication data transmission method, the server, the client and the system of the invention, the local uncertainty and heterogeneity of Web communication data encryption are enhanced, so that attack difficulty can be improved, and therefore, the high security and high reliability of the communication of the Web service system can be ensured.

The invention discloses a preparation method for a hydrocracking catalyst and a preparation method thereof. The catalyst comprises a carrier and a hydrogenation active metal component. The carrier comprises a beta molecular sieve, amorphous silicon aluminum and an adhesive. The beta molecular sieve has the properties that a mol ratio of SiO2 to Al2O3 is 60 to 100; a specific surface area is 505 to 850 m<2> / g; a pore volume is 0.35 to 0.60 mL / g; and relative crystallinity is 100 to 148%. After hydro-thermal treatment by water vapor, the relative crystallinity of the beta molecular sieve is 95% or above. According to the invention, the beta molecular sieve with high crystallinity, a high silica-alumina ratio and good stability is used as an acidic component of the carrier and matched with amorphous silicon aluminum; and the hydrocracking catalyst prepared from the carrier is especially applicable to one-stage tandem hydrocracking process and has the characteristics of high activity, good medium oil selectivity and good product properties.

Production of hydrogenated and pour-point reducing modified isomerization diesel oil is carried out by using fraction oil as raw material from one-stage or series process flow, passing fraction oil raw material and hydrogen gas into catalyst bed which consists of beta molecular sieve 1-9wt%, and obtaining clean high-quality diesel product and naphtha product with low sulfur nitrogen and high arene content. The beta molecular sieve has small crystal grain, low acidity, high silica-alumina ratio and crystallinity. It achieves simple process, higher productivity and less impurities, and improves density and freezing point.

The invention discloses a catalyst for preparing base oil by isodewaxing hydrocracking tail oil and a preparation method of the catalyst, and belongs to the field of catalytic materials. The preparation method comprises the following steps: firstly, carrying out ball milling on two different types of molecular sieves by using a ball mill, then adding oxides or metal salts containing VIII B group metal elements for ball milling, and finally kneading, extruding, drying and roasting to prepare the isodewaxing catalyst. The molecular sieves are fully mixed, agglomeration among the molecular sieves is reduced, the surface area of the molecular sieves is increased, and the metal elements and the molecular sieves are chemically associated through ball milling, so that the synergistic effect between acid and metal in the catalyst is improved, and the dehydrogenation / addition activity of the catalyst is ensured. Therefore, the isodewaxing catalyst prepared by the invention has high conversion rate and selectivity.

The invention discloses a beta molecular sieve and a preparation method thereof. According to the method, after a crystallized beta molecular sieve slurry directly undergoes ammonium exchange and a template agent removal treatment, first a hydrothermal treatment is conducted, and then an aluminum salt solution treatment is carried out, so that part of non-framework aluminum can be removed uniformly under the condition of maintaining a high beta molecular sieve crystallinity. Thus, the obtained beta molecular sieve can has the characteristics of high silicon-aluminum ratio, large specific surface area, appropriate acidity and acid distribution, and reasonable pore structure, etc., and especially has a suitable cracking effect and a very good isomerization effect on long-chain alkane and the long side chain alkyl of aromatic hydrocarbon and cyclane. A hydrocracking catalyst prepared from the beta molecular sieve can substantially reduce the condensation point of diesel oil fraction while maintaining a high diesel oil yield, thus achieving the effect of increasing the yield of low condensation point diesel oil.

The invention discloses a lightweight encryption hijacking attack detection system based on deep learning, and relates to the field of computer network security. Comprising two parts of model training and deployment detection. Aiming at the defects of an existing detection system, a deep learning technology is used for carrying out classification detection on a mining program converted into an image. According to the method, the malicious code vectorization technology is used, the semantic features of the mining program are added into the picture, and higher classification precision is achieved. Meanwhile, good isomerism is guaranteed, and mining programs written by two mainstream languages (JavaScript and WebAssessment) can be detected at the same time. The method can be deployed to a campus or enterprise gateway to monitor and detect daily traffic. And adding the detected domain name on which the malicious mining script is mounted into a blacklist database. The detection system provided by the invention plays a crucial role in network defense of campuses and enterprises, and has positive significance in real-time detection and defense of encryption hijacking attacks.

The invention discloses an inferior-diesel hydro-upgrading catalyst carrier and a preparation method thereof. The catalyst carrier comprises a modified beta molecular sieve, amorphous silica-alumina, macroporous alumina and SB powder. When the catalyst carrier is used for preparing a catalyst, metals for hydrogenation comprise non-noble metals of group VIB and group VIII. The modified beta molecular sieve and the amorphous silica-alumina are taken as cracking components, so that nitrogen resistance of the catalyst is improved, and long-period operation of the catalyst is ensured when high-nitrogen materials are being processed. The modified beta molecular sieve has good cycloalkane ring opening selectivity and a good alkane isomerism performance, and exhibits the advantages of high diesel productivity, large reduction amplitude of diesel solidifying point and obvious improvement of cetane number while the carrier is used for catalytically processing inferior diesel.

The invention discloses a hydrogenation process for producing API III < + > lubricating oil base oil from Fischer-Tropsch synthetic oil. The Fischer-Tropsch synthetic oil is used as a raw material, and a hydrofining-hydro-upgrading-isodewaxing two-stage hydrogenation process is adopted to produce API III + lubricating oil base oil. The generated oil obtained by separation of hydrofining-hydro-upgrading reaction effluent enters an isodewaxing reaction zone; and the process further includes separating and fractionating the isodewaxing reaction effluent to obtain different types of API III + lubricating oil base oil products, cooling fractionated vacuum bottom oil to obtain an incompletely converted wax component, and returning the incompletely converted wax component to the hydro-upgrading reactor to continue the upgrading reaction. The invention has the advantages of simple process flow and wide raw material adaptability, and can be suitable for the process of producing special oil products with good stability by Fischer-Tropsch synthesis oil fraction hydrogenation.