9 results about "Henry's law" patented technology

The invention relates to the technical field of industrial control, and discloses a soda water production line intelligent control method and system based on the Internet of Things, and the method comprises the steps: obtaining a backpressure valve reference pressure value according to the obtained real-time dynamic data through employing a pre-constructed carbonation digital twin model, and calculating the backpressure valve reference pressure value according to the backpressure valve reference pressure value; the carbonation digital twinning model is set to obtain a theoretical pressure value by adopting the Henry law according to the target gas content and the real-time data of the mixed liquid temperature, and obtain a predicted pressure value by adopting the pre-constructed pressure prediction model according to the target gas content, the real-time data of the raw material liquid injection flow and the real-time data of the carbon dioxide injection flow; further obtaining a reference pressure value of the back pressure valve; according to a first difference value between the target gas content and the real-time gas content of the mixed liquid, a first feedback correction algorithm is adopted to correct the reference pressure value of the back pressure valve, and a dynamic pressure control instruction of the back pressure valve is obtained; and controlling the back pressure valve to execute the back pressure valve dynamic pressure control instruction. According to the method, the taste stability of the soda water is effectively improved.

A method for purifying a crude hydrogen feed stream utilizes an adsorbent having a N2 / Ar selectivity ranging from 2 to 4 at 30° C. and a Henry's law coefficient for argon ranging from 0.15 to 1.0 mmole / g / atma at 30° C. The composition of crude hydrogen streams from processes in which carbon dioxide is captured necessitates new criteria for adsorbent selection to improve recovery.

A process for purifying a crude hydrogen feed stream employs an adsorbent having a N2 / Ar selectivity at 30 DEG C in the range of 2 to 4 and a Henry law constant of argon at 30 DEG C in the range of 0.15 to 1.0 mmole / g / atm. The composition of a crude hydrogen stream from a carbon dioxide capture process requires formulation of new adsorbent selection criteria to improve recovery.

The invention discloses a device and a method for detecting dissolved gas and gas content in transformer oil, belongs to the technical field of power equipment state monitoring, and solves the problem of how to improve the detection efficiency of the dissolved gas and the gas content in the transformer oil. The device comprises a valve, a peristaltic pump, a flowmeter, an oil-gas membrane separation module, a mass spectrometry detection module, a low-concentration calibration mixed gas steel cylinder and a high-concentration calibration mixed gas steel cylinder, according to the method, the content of the target gas in the gas phase is analyzed by using the mass spectrometer and combining peak interference calibration, and then the concentration of each dissolved gas in the oil sample is calculated through reverse inference of the Henry law, so that the detection efficiency is greatly improved, and rapid, online and accurate monitoring of the multiple dissolved gases and the gas content in the transformer oil is realized; the method is suitable for transformer fault diagnosis and sealing state evaluation.

The embodiment of the invention provides a component phase state determination method and a component phase state determination system of a three-phase system, and belongs to the field of component numerical simulation. The method comprises the following steps: determining a gas-water initial phase equilibrium constant of each component according to a gas-oil initial phase equilibrium constant of each component in a three-phase system and a Henry law constant of a water phase; according to the physical property parameters of the three-phase system, the gas-oil phase equilibrium constant of each component and the gas-water phase equilibrium constant of each component, the phase equilibrium state of the three-phase system is determined; and under the condition that the three-phase system reaches phase equilibrium, according to the gas-oil phase equilibrium constant of each component and the gas-water phase equilibrium constant of each component, determining the molar percentage content of each component in the oil phase, the gas phase and the water phase. The component phase state determination method not only can calculate the molar percentage content of each component in an oil phase, a gas phase and a water phase, but also can simulate the influence of NaCl on the phase state and the disappearance process of the water phase.

The invention provides the use of a clearing gas in the separation of a mixture comprising a light and a heavy component that are difficult to separate. The invention further concerns a process for such a separation, comprising (a) providing a product mixture containing at least a light component and a heavy component, wherein a binary system of the light component and the heavy component has a Henry's law constant of at least 0.001 mol m−3 Pa−1, and the boiling point of the light component is at least 30° C. higher than the boiling point of the heavy component, determined at ambient pressure; (b) subjecting the product mixture to a distillation step, wherein the product mixture is heated in a distillation column to a distillation temperature at a distillation pressure; (c) feeding a clearing gas at a location below the feed point of the product mixture; (d) collecting at the top of the distillation column a product gas containing the light component and the clearing gas; (e) collecting at the bottom of the distillation column a product liquid containing the heavy component.

The invention provides a method for detecting the loading capacity of liquid-phase gas, which comprises the following steps: a reaction and data acquisition step: injecting a liquid-phase sample with a first volume V1 and a reaction liquid with a second volume V2 into a reaction container with a volume V, and fully reacting the liquid-phase sample with the reaction liquid to release gas under the condition of keeping the reaction container sealed, collecting the temperature T in the reaction container in the reaction process and the pressure P0 and P1 in the reaction container before the reaction is started and after the reaction is completed; calculating the amount of released gas: calculating the amount of substance of the released gas through double-model fusion of an ideal gas state equation and a Henry law according to the collected temperature T, pressure P0 and P1, the first volume V1, the second volume V2 and the volume V; and a gas loading capacity calculation step: calculating the gas loading capacity of the liquid phase sample according to the substance amount of the released gas, the first volume V1 and the effective component concentration of the liquid phase sample. And the accuracy and the anti-interference performance of gas loading capacity detection are improved.

The present application relates to the technical field of oil reservoir and energy utilization, and relates to a numerical simulation method of carbon filtration gas recovery scheme, comprising: finding out the spatial distribution of target area aquifer and mixed gas reservoir, establishing a three-dimensional geological structure model of the target reservoir; obtaining relevant parameters; establishing a mathematical model of carbon filtration gas recovery simulation based on a reservoir numerical simulator; depicting the expression of the dissolution process of CO2 in formation water in the carbon filtration gas recovery simulation process based on Henry's law; depicting the calculation formula of the residual CO2 amount in the porous medium in the carbon filtration gas recovery simulation process based on the Land model; constructing a reactive migration model of CO2 and CH4 mixed gas in the target reservoir under actual formation temperature and pressure according to the three-dimensional geological model, the mathematical model, the expression, the calculation formula and the relevant parameters; based on the reactive migration model, comparing and analyzing the influence of different production well numbers, positions and pressure differences on the CO2 dissolution storage amount and the CH4 mass fraction in the production well, and screening out the scheme with the maximum CO2 dissolution storage amount and CH4 mass fraction in the production well.

The application discloses a device and method for detecting dissolved gas and gas content in transformer oil, and belongs to the technical field of power equipment state monitoring. The device comprises a valve, a peristaltic pump, a flow meter, an oil-gas membrane separation module, a mass spectrometric detection module, a low-concentration calibration mixed gas cylinder and a high-concentration calibration mixed gas cylinder. The method utilizes a mass spectrometer and combines peak interference to calibrate and analyze the content of target gas in gas phase, and then inversely calculates the concentration of each dissolved gas in the oil sample through Henry's law, so that the detection efficiency is greatly improved, the rapid, online and accurate monitoring of multiple dissolved gases and gas content in transformer oil is realized, and the device is suitable for transformer fault diagnosis and sealed state evaluation.