31 results about "Type synthesis" patented technology

The invention provides an isomorph identification method for complex-hinge-containing kinematic chains based on topological characteristic loop codes. The isomorphic identification method comprises the following steps: first, calculating maximum loops of all excessive freedom degree vertexes according to a bi-color topological diagram adjacent matrix of the kinematic chains and to a corresponding algorithm; generating standardized bi-color topological diagram loop codes based on the maximum loops; taking the largest loop code as the topological characteristic loop code of the corresponding kinematic chain, wherein the topological characteristic loop code is in one-to-one correspondence with the kinematic chain, is unique, and represents the topological invariance of the kinematic chain; and finally, the purpose of isomorph identification can be realized via topological characteristic loop codes of two kinematic chains. The isomorph identification method has the advantages that calculation and simulation are conducted in an MATLAB; more than 3000 types of kinematic chains containing 10 or less complex hinges can be constructed when the isomorph identification method is combined with a corresponding type synthesis method; and results show that the isomorph identification method is practical, reliable and effective.

The invention discloses a natural gas type synthesis ammonia energy-saving and emission-reduction technology, which is characterized in that: a methodology of process systems engineering is adopted torealize mass-energy comprehensive integration, particularly comprising the following steps: carbon dioxide in one section of furnace flue gas is recovered by adopting a combined method of membrane separation and chemical adsorption; deeply cooling, distilling and recovering argon gas in purge gas of a hydrogen recovery device; a great quantity of low-temperature waste heat at the outlet positionof the top of a regenerating tower and an ice engine is recycled by adopting heat pump technology, so as to save cold of the ice engine and pre-heating boiler water; a similar device is used as a reference, the proposal is close to zero discharge, greenhouse gas emission load can be reduced by 50 percent to 100 percent, and carbon dioxide and argon gas are by-products at the same time, and the unit consumption of a product can reach 31GJ/tNH3, and compared with the original process, the energy saving can reach 5 percent to 15 percent. The technology is particularly suitable for the existing synthesis ammonia device which takes natural gas as raw material, so as to carry out energy-saving and emission-reduction technology reconstruction, the energy consumption of the natural gas type synthesis ammonia device based on the design of the proposal is the lowest level in the national similar devices.

Disclosed are a hydrogen selenide preparation device and a method. According to the method, the hydrogen selenide is directly synthesized by hydrogen and selenium(Se), a hydrogen inlet pipeline (26) is fed into a selenium liquefaction and vaporization device (5), a primary synthetic reaction between the hydrogen and the selenium is started, synthesized an H2Se/Se/H2 mixing gas-liquid stream is fed into a filling tower-type synthesis reactor (8) and subjected to a continuous synthetic reaction, the Se in a selenium condensation separator (10) is condensed into liquid, then is separated and flows back to the synthesis reactor or the selenium liquefaction and vaporization device for continuing reacting, an H2Se/H2 mixing gas stream flows into a hydrogen selenide condensation separator (18), non-condensable gas hydrogen in the hydrogen selenide condensation separator is separated and conveyed back to the hydrogen inlet pipeline (26), the non-condensable gas hydrogen and the hydrogen are combined for supplying hydrogen, and finally, the H2Se is condensed and collected in the hydrogen selenide condensation separator.

The invention discloses a catalyst for directly manufacturing low-carbon olefin through nuclear shell type synthesis gas. The catalyst is prepared from active components, auxiliaries and a carrier in weight percent as follows: 2.0-20% of cobalt oxide, 2.5-20% of manganese oxide, 0.05-2.0% of metal additive oxide, and 58-95% of carrier. The catalyst disclosed by the invention is high in selectivity, and capable of greatly reducing the CO2 selectivity.

The invention discloses a synthesis gas preparing system and method. The synthesis gas preparing system comprises a solid oxide electrolytic tank, a feed gas supply system, a fused salt supply systemand a synthesis gas mixing chamber. The solid oxide electrolytic tank comprises a cathode, an anode and an electrolyte. The cathode is in contact with feed gas, and the anode is in contact with the fused salt mixed with carbon powder and a catalyst. According to the synthesis gas preparing system and method, coupling of a solid oxide electrolytic tank technology and a coal gasification technologyis achieved, O2 generated in the electrolysis / co-electrolysis reaction process is subjected to coal gasification reaction with the carbon powder to generate CO, the high temperature fused salt is utilized to serve as a dispersing agent of the carbon powder, the specific surface area of the coal gasification reaction is enlarged, accordingly the transformation efficiency and the yield of the synthesis gas are improved, energy consumption per unit output is reduced, and the specific proportion of needed synthesis gas can be further adjusted. The synthesis gas preparing system and method are suitable for distributed type synthesis gas production factories, and have the characteristics of being high in energy efficiency, simple in operation, high in safety, capable of being produced in batches and the like.

The invention relates to an indirect heating-type synthesis assembly for single crystal synthesis by using a cubic press. The indirect heating-type synthesis assembly comprises pyrophyllite powder pressing block which is internally lined with a dolomite casing. The indirect heating-type synthesis assembly is characterized in that a cylindrical metal cup made of metal niobium, tantalum, molybdenum or tungsten is arranged in the dolomite casing, an aluminum oxide ceramic high-temperature pipe is wrapped outside the cylindrical metal cup and the aluminum oxide ceramic high-temperature pipe is made of alpha-aluminum oxide and talc through high-temperature sintering; metal conducting strips are respectively arranged on the two sides of the metal cup and are connected with the metal cup; and the two ends of the dolomite casing are respectively sealed by composite conducting plugs and the composite conducting plugs are connected with the metal conducting strips. The indirect heating-type synthesis assembly uses high-melting-point metals to make the metal cup which is also used as an electric heating element, aluminum oxide ceramic materials are additionally used for making the high-temperature protection pipe, the indirect heating-type synthesis assembly is suitable for synthesizing artificial single crystals such as diamonds by using the cubic press, the requirements of higher temperature and longer heating time are satisfied, the stability of single crystal synthesis technology and equipment is improved, the losses of anvils are reduced and favorable conditions are provided for the synthesis of gem grade diamonds.

The invention provides a method for continuous synthesis of a polycarboxylic acid water reducer. The method comprises providing a tubular reactor with a first feeding point, a second feeding point, a third feeding point, a forth feeding point and a fifth feeding point, continuously adding a mixed raw material to the first feeding point, the second feeding point, the third feeding point, the forth feeding point and the fifth feeding point according to a ratio and carrying out a reaction process to obtain the polycarboxylic acid water reducer. The mixed raw material comprises an unsaturated polyether macromonomer, an acrylic acid monomer, an initiator and a chain transfer agent. The method well controls a polycarboxylic acid water reducer synthesis process. The polycarboxylic acid water reducer has product performances better than those of the existing water reducer product prepared through a batch-type synthesis method and has a narrow molecular weight distribution range.

The invention provides an inflaming-retarding epoxy resin for an electronic packaging material and a copper-clad plate and a synthesis method thereof. In the invention, the inflaming-retarding epoxy resin for the electronic packaging material and the copper-clad plate is prepared from liquid epoxy resin, polycyclic diphenol/polycyclic dicarboxylic acid, organic boric acid and a nitrogen-containing heterocyclic compound by using a sectional type synthesis method in the presence of a catalyst through controlling reaction temperature, reaction time and other conditions, wherein the epoxide number of the epoxy resin is 0.05-0.2eq/100g, the softening point of the epoxy resin is 70-130 DEG C, the nitrogen content of the epoxy resin is 0.5-5wt%, and the boron content of the epoxy resin is 0-1.6wt%. According to the invention, the inflaming-retarding property and water tolerance of the epoxy resin are further improved through combining the flame resistance of condensed ring or biphenyl and inflaming-retarding properties of nitrogen-containing heterocyclic ring and organic boron, thereby meeting the non-halogen non-phosphorus requirements of an electronic component packaging material and a copper-clad plate.

The invention discloses a plant drought induced type synthesis promoter SP15. The nucleotide sequence of the plant drought induced type synthesis promoter SP15 is shown as SEQID No.1. A plant expression vector is formed by that a nucleotide sequence as shown in the SEQID No.1 is inserted to a vector plasmid. The invention further relates to an application of the promoter SP15 to breeding of drought resisting genetically-modified plant, and belongs to an artificially synthesized promoter. The expression situation of the SP15 promoter driving report genes GUS identified in a soybean hairy root transformation system indicates that the SP15 promoter can be induced by drought stress, and the expression intensity is equivalent to a CaMV 35s promoter.

The invention discloses a total heat recovery type synthesis gas cooler with a residue chamber. The total heat recovery type synthesis gas cooler comprises a synthesis gas cooler and a U-shaped residue chamber, wherein one end of the U-shaped residue chamber is communicated with the synthesis gas cooler, and a residue outlet is arranged on the bottom part of the residue chamber. The total heat recovery type synthesis gas cooler further comprises a gasification reaction chamber, and the bottom outlet of the gasification reaction chamber is communicated with the other end of the U-shaped residue chamber. A residue catcher is arranged in a passage in which the residue chamber turns to the synthesis gas cooler. The total heat recovery type synthesis gas cooler with residue chamber disclosed by the invention is used for effectively separating liquid slag and ash drops from the synthesis gas before the high temperature synthesis gas enters the synthesis gas cooler so as to solve such common problems of the synthesis gas cooler as scorification, blockage and contamination, and the like; and ash concentration in the synthesis gas is greatly decreased, so that the attrition of a convection heating surface is alleviated, the gas flow rate in the synthesis gas cooler can be correspondingly increased, the heat exchange is reinforced, the equipment is more compact and the production cost is lowered.

The invention relates to the field of mechanism kinematic chains, and discloses a metamorphic hand design method based on a metamorphic principle. The metamorphic hand design method based on the metamorphic principle comprises the steps of through number synthesis, obtaining a digital synthesis result regarding to the component number, the kinematic pair number, a loop and each multielement component number, then carrying out type synthesis, obtaining a kinematic chain, further selecting the kinematic link meeting the requirement to select components for regenerative design, and thus obtaininga design scheme of a metamorphic hand. According to the metamorphic hand design method based on the metamorphic principle provided by the invention, the metamorphic hand is designed through a combination method of the kinematic chain based on the metamorphic principle, so that irregular objects with different sizes are grabbed, the grabbing efficiency and the system reliability are improved, a robot error is remedied, and a higher additional value is brought for an assembling system.

The invention provides kettle type synthesis equipment. The kettle type synthesis equipment comprises a kettle body, a stirring and mixing device, a material filtering device and a pressure buffering device. An upper sealing end and a lower sealing end are arranged at the two ends of the kettle body respectively. The stirring and mixing device comprises a mounting rack, a driving motor, a driving shaft and a stirring paddle. The material filtering device comprises a material pumping pipe body, a filtering box body, a filter screen assembly, a filtering pump body, a reflowing pipe body and a valve. The pressure buffering device is located between the material pumping pipe body and a first filter screen; the pressure buffering device comprises a plurality of buffering plate bodies. The kettle type synthesis equipment is provided with the kettle body, the stirring and mixing device and the material filtering device, and the material filtering device can be used for circularly filtering materials to remove impurities; the operation of removing the impurities is relatively simple and convenient, and the production efficiency is relatively high.

The present invention relates to plant cells and plants, which are genetically modified, wherein the genetic modification leads to the expression in plastids of such plant cells and plants of an enzyme having the activity of a dextransucrase. Furthermore, the present invention relates to means and methods for the manufacture of such plant cells and plants. Plant cells and plants of this type synthesis a modified starch. The present invention therefore also relates to the starch synthesized by the plant cells and plants according to the invention as well as to methods for the manufacture of the starch and to the manufacture of starch derivatives of this modified starch.

The invention relates to a system for determining the steam-gas ratio of inlets of all shift converters at the conversion section of a tandem type synthesis ammonia plant. The system comprises an intelligent secondary meter cluster unit with a communication function and a gas composition analytical unit, wherein a temperature adjusting device is arranged between two adjacent shift converter sections; a temperature adjusting method comprises the steps of adding steam, spraying water for chilling and heat exchange; the determination system comprises a sensor group unit arranged on a series-connected line of a plurality of shift converter sections and pipelines, the sensor group unit comprises a sensor combination arranged in a main pipeline in front of a shift converter section to be detected for determining the temperature and the pressure of gas in the main reaction pipeline before steam adding or cold water chilling, a sensor combination for determining the temperature and the pressure of the gas in the main reaction pipeline after steam adding or cold water chilling, and a sensor combination for measuring the temperature and the pressure of chilled water or steam in a pipeline where the steam or chilled water is added. The system can statically, automatically and continuously measure the steam-gas ratios of all shift converter sections.

The invention belongs to the technical field of biomedical material synthesis, and particularly relates to a flow type synthesis device of nanogel. The device comprises an injection pump sample introduction system, a pipeline synthesis system, a product post-treatment system and a product collection system which are connected in sequence, the injection pump sample introduction system comprises a liquid sample introduction system, a gas sample introduction system and a liquid mixing pipeline, the liquid sample introduction system is connected with one end of a pipeline synthesis system through the liquid mixing pipeline, and the gas sample introduction system is directly connected with the pipeline synthesis system. The invention further provides a method for synthesizing the nanogel by using the flow type synthesis device. The invention has the beneficial effects that the specific surface area of heat exchange between reactants and the outside can be increased, the influence of temperature on the reactants and polymerization reaction is reduced, and uniform mixing of liquid is facilitated; the synthesis method is simple to operate and mild in synthesis condition, and has a wide application prospect in the biomedical field.

A convection-free flow-type reactor includes a reactor body. The reactor body includes a reaction chamber to house a fluid. An inlet is in communication with the reaction chamber to allow input of a reactant fluid. An outlet is in communication with the reaction chamber to allow output of a product fluid. An energy beam source device provides an energy beam to irradiate the reactant fluid in the reaction chamber. The disclosure further provides a convection-free flow-type synthesis method.

The present invention relates to a process for the polyol-type synthesis of nanoparticulate magnetite starting from mixtures of Fe⁰ and Fel^III in the presence of a mineral acid. The magnetite particles obtainable from the process have uniform size characteristics and have even presented higher SAR (Specific Absorption Rate) values than those of magnetosomes.