7 results about "Rates reactions" patented technology

The application relates to the field of carbon dioxide resource utilization, and discloses a numerical simulation method, device and equipment for a carbon dioxide resource utilization reaction, wherein the method comprises the following steps: a flow field simulation model and a reaction simulation model of the carbon dioxide resource utilization reaction are established; reaction component concentration and a reaction rate are obtained; based on the reaction component concentration, the flow field simulation model is analyzed in a steady state to determine stable flow field data of the resource utilization reaction; based on the reaction rate and the stable flow field data, equivalent stable time of the resource utilization reaction is determined; based on the reaction rate and the equivalent stable time, the reaction component concentration is corrected; based on the corrected reaction component concentration and the stable flow field data, the reaction simulation model is analyzed in a transient state until the resource utilization reaction ends, so that a numerical simulation result of the resource utilization reaction process is obtained. The technical scheme provided by the application can improve the simulation accuracy and simulation efficiency of the numerical simulation process for carbon dioxide resource utilization.

The invention provides a method for detecting impurities in a reaction process of N-(carbobenzoxy)-L-tyrosine methyl ester, which comprises the following steps: in the reaction process of the N-(carbobenzoxy)-L-tyrosine methyl ester, if a plurality of other unknown substances are generated if the feeding proportion, the temperature, the dripping speed and the like are not controlled well, the impurities are detected to be detected; unknown impurities generated in the process have certain influence on the purity of a sample, production equipment can completely remove reaction raw materials or degradation products, but the impurity removal capacity is limited for a small amount of generated impurities which are equivalent to main products in property, and the production equipment can be used for improving the reaction rate, exploring the optimal reaction conditions and monitoring other impurities generated in the reaction process. And performing qualitative analysis on impurities, and performing auxiliary detection by using a high performance chromatography-ultraviolet detection method. The detection method has the advantages of high sensitivity, almost no detection interference, good accuracy, short analysis time and the like, and can effectively overcome the defects in the prior art. The method can be used for detecting the reaction process of N-(carbobenzoxy)-L-tyrosine methyl ester and related substances of the product.

The application provides a measuring device and a measuring method for interfacial reaction intrinsic kinetics. The measuring device for interfacial reaction intrinsic kinetics comprises a reaction disc, the reaction disc is provided with a reaction channel, a first liquid inlet channel, a second liquid inlet channel, a first liquid outlet channel and a second liquid outlet channel, the first liquid inlet channel and the second liquid inlet channel are communicated with the inlet of the reaction channel, and the first liquid outlet channel and the second liquid outlet channel are communicated with the outlet of the reaction channel; a centrifugal driving member is connected with the reaction disc to drive the rotation of the reaction disc; a first conveying pump is used for conveying a first fluid to the first liquid inlet channel; a second conveying pump is used for conveying a second fluid to the second liquid inlet channel; a first collecting device is used for collecting the reacted first fluid; and a second collecting device is used for collecting the reacted second fluid. The measuring device for interfacial reaction intrinsic kinetics can decouple the mass transfer and the reaction rate in a heterogeneous reaction, so that the interfacial intrinsic reaction rate is obtained.

The application discloses a heat-triggered water-based carbodiimide crosslinking agent composition and application thereof. By introducing a latent acid and setting an alkaline environment during storage, the hydrolysis of carbodiimide and the pre-reaction of carbodiimide and carboxyl are simultaneously inhibited from the kinetic aspect, and the system is 'frozen' in a stable state. When used, the latent acid is triggered to decompose by heating, and the system pH is suddenly reduced to acidity by instantaneous release of protons, which not only quickly protonates and activates the carbodiimide, but also creates an optimal kinetic window in which the reaction rate of carbodiimide and carboxyl is much faster than the hydrolysis reaction, thereby accurately, synchronously and efficiently guiding the reaction path to the target crosslinking direction, and realizing the unification of'stable storage' and 'on-demand efficient reaction' in a single component.

The application discloses a mechanism-guided cascade reactor dynamic modeling and transfer learning method and device, and belongs to the technical field of chemical engineering and artificial intelligence, and comprises the following steps: residence time and input variables are taken as inputs of a reactor inlet, are processed through a reaction rate learning module, and finally the remaining reactant concentrations of different reaction microelements after corresponding residence time are obtained; flow and residence time are taken as input parameters and are input into a residence time distribution learning module; the module processes the parameters, and outputs the residence time probability distribution under the conditions of corresponding flow and residence time; the remaining reactant concentrations output by the reaction rate learning module and the corresponding probability distribution output by the residence time distribution learning module are subjected to weighted summation through a reactor output module, and finally the reactant concentration at the reactor outlet is obtained.

The utility model relates to the technical field of ethylene glycol hydrogenation reactors, in particular to an ethylene glycol hydrogenation reactor which comprises a device body, the device body is provided with a connecting mechanism, the connecting mechanism comprises connecting assemblies arranged on the two sides of the device body, and a reaction assembly is arranged in the middle of the device body. A filter assembly is arranged at the lower section of the device body, and the reaction assembly comprises a reaction tank fixedly mounted on the inner wall of the middle section of the device body. Through cooperation of a fixing sleeve, a hinged connecting rod, a limiting sliding block and a scraping plate, materials on the inner wall of the reaction tank can be scraped and swept, meanwhile, a rotating roller rolls in the materials, and all-directional and multi-angle stirring and mixing are achieved; the efficient stirring mode enables reactants to be in full contact, the reaction rate is remarkably increased, the uniformity and thoroughness of the reaction are improved, the quality and purity of products are improved, and compared with a traditional reactor, the problem that the stirring and mixing effect is poor is effectively solved.

The application discloses a kind of gas acceleration synthesis system and method for material preparation, belong to material preparation field, including gas source unit, raw material adding unit, acceleration chamber unit, reaction chamber unit, circulating chamber unit and collection chamber unit;The acceleration chamber unit, reaction chamber unit and circulating chamber unit are communicated to form circulation loop, and the gas source unit, raw material adding unit and collection chamber unit are communicated with circulation loop respectively;Its characterized in that: separation unit is further provided in circulation loop, and the separation unit is used to separate the particles in circulation loop;Large particles are transported to reaction chamber unit at low speed after separation, and small particles are transported into circulation loop again after separation;Product is collected by collection chamber unit;The application has the characteristics of fast reaction rate, high synthesis efficiency, environment-friendly and pollution-free, and has excellent application prospect.