48 results about "Carbon dioxide partial pressure" patented technology

The invention discloses a typhoon influence distinguishing method and system based on seawater CO2 partial pressure data, and the method comprises the steps: obtaining sea area situation monitoring data in a target sea area typhoon transit period through a multi-source observation platform, and constructing a standardized data set and a climate state background field; a DBSCAN clustering algorithm is adopted to perform water mass division, and the typhoon characteristic water mass distribution is determined in combination with a Manchester-HuitiniU test and correlation analysis. And calculating a seawater carbon dioxide partial pressure abnormal field based on the climate state background field, constructing a typhoon influence index sequential sequence, identifying a core influence area, and generating a typhoon influence trace path. And then seawater carbon dioxide partial pressure grid point reconstruction is carried out, and a typhoon influence space map is constructed. And finally, analyzing space-time change of carbon dioxide flux of air-sea, evaluating carbon sink stability, and generating a typhoon-carbon sink sensitivity zoning map. Seawater carbon dioxide partial pressure is used as a core index, limitation of a traditional method is overcome, and reliable technical support is provided for typhoon marine environment influence assessment.

The present invention relates to a system and method for capturing CO2 in a carbon emission source using chemical chain hydrogen production technology, using the heat released in the fuel chemical chain hydrogen production process to provide energy for a CO2 release unit in the CO2 capture process of a carbon emission source, and using water vapor generated by a reduction reaction to reduce the carbon dioxide partial pressure in the CO2 release unit, which is beneficial for the CO2 release unit to precipitate CO2. This method can achieve efficient conversion of fuel chemical energy while reducing the energy consumption of CO2 capture in a carbon emission source, and can reduce equipment investment costs compared to separately performing fuel chemical chain hydrogen production and capturing CO2 in flue gas.

The invention discloses a dynamic tracking adsorption testing device and method adaptive to different carbon dioxide partial pressure adsorption properties of multi-scene adsorbents, and solves the problems that an existing device cannot dynamically track the adsorption process and lacks a standard processing device and method for multi-parameter linkage analysis. The dynamic tracking adsorption testing device comprises a reaction master control, a self-regulation gas supply system and a gas analysis system, the gas inlet end of the reaction master control is communicated with the self-regulation gas supply system, and the gas outlet end of the reaction master control is communicated with the gas analysis system; the dynamic tracking adsorption test method comprises the following steps: performing vacuum activation pretreatment on a test sample, adsorbing and desorbing to obtain mass change in an adsorption stage and import and export concentration data, and establishing a triple adsorption quantity calculation model based on the mass change in the adsorption stage and the import and export concentration data; and completing an adsorption cycle stability test process according to the triple adsorption capacity calculation model after data analysis.

The invention discloses an adsorption method carbon dioxide capture control method, a storage medium and electronic equipment. The method comprises the following steps: obtaining a preset empty tower gas velocity of an adsorption tower according to a preset gas velocity operation model; obtaining a preset adsorption capacity of the adsorbent according to a preset capacity operation model; obtaining the actual gas inlet pressure of the adsorption tower according to a preset pressure operation model; according to the actual inlet air pressure and the average carbon dioxide concentration, the carbon dioxide partial pressure value in actual inlet air is obtained; determining the actual adsorption capacity according to the carbon dioxide partial pressure relation curve and the carbon dioxide partial pressure value; obtaining an actual operation period of the attached tower according to a preset period operation model; controlling the pressure of the adsorption tower and the operation state of flow adjusting equipment, so that the air inlet pressure of the adsorption tower is consistent with the actual air inlet pressure, and the operation cycle of the adsorption tower is consistent with the actual operation cycle. By means of the scheme, the adaptability and stability of the adsorption device to air inlet working condition fluctuation are improved.

The application discloses a kind of desulfurization wastewater's increase processing method of sink, for the problem of strong acidity of desulfurization wastewater, higher carbon dioxide partial pressure.Utilize sink increasing agent can realize wastewater sink, the percentage of weight of each component of sink increasing agent is as follows: calcium oxide 10-85%, apatite 10-85%, calcined dolomite 0.01-85%, limestone 0.01-85%, olivine 0.01-50%, sodium carbonate 0.01-10%, sodium bicarbonate 0.01-10%, potassium dihydrogen phosphate 1.00-40%, and the sum of weight ratio of above each component is 100%.By using the method of the application, the sink increasing agent is used to improve the alkalinity of desulfurization wastewater, significantly reduce the carbon dioxide partial pressure in wastewater, improve the absorption of carbon dioxide, realize the transformation of carbon source into carbon sink, and strictly control the weak alkaline of water body at the discharge end.The system can increase the absorption of carbon dioxide, realize the sink of desulfurization wastewater;The method can quickly dissolve the sink increasing agent, realize the quick sink effect;And the method can adjust the weak alkaline of water body at the discharge end, the weak alkaline of desulfurization wastewater with low pH after treatment can be directly discharged.

The invention relates to the field of medical data processing, in particular to a clinical evaluation and prediction method and system for exhaled gas and percutaneous carbon dioxide monitoring, and the method comprises the steps: determining a target skin area for implementing percutaneous carbon dioxide monitoring according to the body surface temperature data of a target object; according to the percutaneous carbon dioxide partial pressure of the target skin area, obtaining percutaneous carbon dioxide release characteristics; acquiring a relative change relationship between the percutaneous partial pressure of carbon dioxide and the exhaled gas partial pressure of carbon dioxide, and estimating energy metabolism characteristics in combination with percutaneous carbon dioxide release characteristics so as to construct a metabolism model matched with a target object and predict a disease risk change trend; evaluating and screening clinical detection data, and generating a disease risk evaluation result. By comparing and analyzing exhaled air and percutaneous carbon dioxide partial pressure data, the real body state can be comprehensively reflected, the potential health risk of a patient can be quickly predicted and evaluated, and the disease risk evaluation credibility can be improved.

The present invention relates to a breathing detection system, comprising: a mask, configured to cover at least part of the user's face to transfer oxygen to the user; an oxygen supply device, configured to provide oxygen to the user through the mask; a first monitoring unit, configured to monitor physiological parameters that change with changes in the partial pressure of carbon dioxide in the user's arterial blood; and a central control unit, the central control unit is respectively connected to the oxygen supply device and the first monitoring unit for communication, and the central control unit is configured to: when the physiological parameter obtained by the first monitoring unit exceeds a preset range, adjust the oxygen supply device to an intermittent oxygen supply mode to adjust the amount of oxygen provided by the oxygen supply device, thereby adjusting the oxygenation level. The present invention only needs to turn on and off the oxygen supply according to the patient's breathing stage, and does not need to set parameters such as oxygen flow or oxygen concentration multiple times.

The present invention relates to a method for growing a gallium oxide single crystal and an apparatus for growing a single crystal, and according to one aspect of the present invention, the method includes providing a gallium oxide raw material in a crucible containing iridium, injecting carbon dioxide so that a preset carbon dioxide partial pressure is formed to suppress the loss of iridium, melting the gallium oxide raw material provided in the crucible, and producing a gallium oxide single crystal from the melt.

The application relates to a method and device for pyrolyzing heavy magnesium water and basic magnesium carbonate, the method comprising: heating the heavy magnesium water; wherein a vacuum treatment is adopted, and the vacuum degree of the vacuum treatment is controlled to perform a first-stage pyrolysis of the heavy magnesium water; the vacuum treatment is stopped according to the first temperature of the heavy magnesium water to perform a second-stage pyrolysis of the heavy magnesium water, and basic magnesium carbonate is obtained. In the first-stage pyrolysis, it is also an induction period of pyrolysis. The heavy magnesium water is heated, and a certain vacuum degree is reached in the pyrolysis process by using the vacuum treatment, the carbon dioxide partial pressure in the pyrolysis is reduced, the induction period of the pyrolysis is controlled, the pyrolysis temperature in the first stage is reduced, the reaction rate of the pyrolysis is accelerated, and the energy consumption is reduced.

A process for making a substantially nitrosamine-free, substantially peroxide-free, substantially colorless amine oxide solution comprises reacting a tertiary amine capable of forming an amine oxide with a less than stoichiometric amount of aqueous hydrogen peroxide in an aqueous medium while imposing on the aqueous medium a vapor space having a carbon dioxide partial pressure p(CO2) of less than 0.75 bar absolute. The process allows for obtaining amine oxides which are substantially nitrosamine-free, substantially peroxide-free, and substantially colorless. This unique combination of desirable features has not been achieved so far in a process only comprising oxidation and distillation.

This invention provides a method, system, and ventilator for calculating and graphically plotting carbon dioxide output and carbon dioxide ventilatory equivalent slope. The method includes: acquiring expiratory volume data (VE) and carbon dioxide partial pressure data (E) for the same respiratory cycle of the ventilator. CO2 Based on VE and E CO2 Plot volumetric and carbon dioxide curves; determine the respiratory cycle based on volumetric and carbon dioxide curves; determine the respiratory cycle based on vitamin E and vitamin E. CO2 This invention involves plotting a volumetric carbon dioxide graph for one respiratory cycle; calculating real-time carbon dioxide output data based on the volumetric carbon dioxide graph; calculating the carbon dioxide output and plotting a volumetric carbon dioxide output graph; and calculating the carbon dioxide ventilation equivalent slope based on the volumetric carbon dioxide output graph. The advantages of this invention are: it can obtain real-time carbon dioxide output curves, carbon dioxide output-volume graphs, and volumetric carbon dioxide output graphs, and obtain the carbon dioxide output and carbon dioxide ventilation equivalent slope.

The invention discloses an aquarium water-gas interface carbon dioxide gas monitoring linkage control device and method, and belongs to the technical field of aquarium related equipment. The aquarium water-gas interface carbon dioxide gas monitoring linkage control device comprises a container body with an opening in the lower portion, and the opening of the container body is immersed into a water body of an aquarium water-gas interface; the gas enrichment cavity collects carbon dioxide which is dissolved in a water body and escapes from a water-gas interface in the area, the carbon dioxide passes through the vent hole and is detected by the sensing detection unit through the waterproof breathable film to generate carbon dioxide concentration data, and the control unit calculates the carbon dioxide partial pressure slope and the carbon dioxide escape flux according to the carbon dioxide concentration data; the carbon dioxide output of the carbon dioxide supply assembly is controlled based on the carbon dioxide escape flux. The system can monitor carbon dioxide dissolution in a water body in real time, timely reflect the carbon dioxide concentration change dynamic state of the water body, automatically control the supply amount of carbon dioxide, ensure the stability of photosynthesis of green plants in the aquarium, and realize dynamic balance of the carbon dioxide dissolution amount of the water body.

The invention provides basic cobalt carbonate with high carbonate content and a preparation method thereof, and belongs to the technical field of cobalt compound preparation. The basic cobalt carbonate can be used as a cobalt source or a cobalt compound precursor for a positive electrode material. The method comprises the following steps: introducing carbon dioxide into a sodium carbonate solution in advance to obtain a pre-carbonized sodium carbonate solution; synchronously dropwise adding the pre-carbonized sodium carbonate solution and the cobaltous sulfate solution for reaction under the condition of partial pressure of carbon dioxide, and controlling the pH value of the reaction solution to obtain reaction slurry; aging the reaction slurry under a carbon dioxide pressurization condition, regulating the pH value, and filtering to obtain a wet filter cake; the wet filter cake is sequentially subjected to sodium bicarbonate solution replacement washing and carbon dioxide saturated deionized water washing, then dried, smashed and screened, and a product is obtained; the method disclosed by the invention is beneficial to improving the carbonate introduction degree of basic cobalt carbonate and reducing soluble salt entrainment, and few insoluble residues are generated in acid medium dissolution evaluation.

The invention belongs to the technical field of oilfield chemistry, and relates to an organic packing liquid and a preparation method thereof. According to the organic packing liquid, hydrolysis ionization is blocked from the source by means of a non-aqueous solution medium, corrosion of acid gas to an underground pipe column at high temperature and high pressure is effectively reduced, and the organic packing liquid comprises, by weight, 80%-99.7% of polyhydric alcohol, 0.1%-0.3% of a deoxidant, 0.2%-2.0% of a buffering agent and 0-19.7% of heavy salt. The organic packing liquid disclosed by the invention has an extremely low corrosion rate to L80-13Cr, the corrosion rate to the L80-13Cr is only 0.0017 mm / a under the conditions that the partial pressure value of carbon dioxide reaches 10-20MPa, the partial pressure value of hydrogen sulfide reaches 2-10KPa and the temperature is 200 DEG C, and the organic packing liquid has no adverse effect on a rubber sheet of a field packer.

A mesoporous carbon sorbent for removal of carbon dioxide from a gaseous material includes a BJH average pore width greater than about 3 nm, and a selectivity of carbon dioxide to nitrogen greater than about 20.00 at about 30° C., a partial pressure of carbon dioxide of about 114 mmHg, and a partial pressure of nitrogen of about 646 mmHg. Related mesoporous carbon sorbents, and methods of forming the carbon sorbents are also disclosure.

The invention discloses a method and equipment for measuring the partial pressure of carbon dioxide in a water body through a spectrum method and a storage medium. The method comprises the following steps: regularly collecting a carbon dioxide partial pressure measured value and absorption spectrum data of a water body, pre-processing the absorption spectrum data by using multiple preset algorithms, evaluating the data quality of the pre-processed absorption spectrum data, and outputting optimal spectrum data; the method comprises the following steps: matching spectral data with a carbon dioxide partial pressure measured value, constructing a training sample set, carrying out parallel training on the training sample set by adopting multiple machine learning algorithms, constructing a candidate inversion model library, carrying out performance evaluation on inversion models in the candidate inversion model library, and determining a final pCO2 inversion model. And subsequently, when new absorption spectrum data to be measured are received, a pCO2 value can be output according to the pCO2 inversion model. The problem that the temporal-spatial resolution and the monitoring efficiency are low due to the fact that precision and large-range synchronous monitoring cannot be considered when the pCO2 value of the water body is measured is solved, and the effect of improving the temporal-spatial resolution and the monitoring efficiency is achieved.

A method for producing a carbamic acid salt, including contacting a carbon dioxide-containing mixed gas having a partial pressure of carbon dioxide of 0.001 atm or more and less than 1 atm with an amino group-containing organic compound in the presence of a base in at least one organic solvent selected from the group consisting of an organic solvent having 2 or more and 8 or less carbon atoms, and a method for producing a carbamic acid ester or a urea derivative using the carbamic acid salt.

The present application relates to the technical field of medical information monitoring, and more particularly to a non-invasive carbon dioxide partial pressure monitoring ear clip and an intelligent monitoring method thereof, comprising: determining that a trigger alarm is determined based on a theoretical carbon dioxide partial pressure value to determine that the partial pressure is unqualified; determining the content unqualified based on the evaluation concentration value; determining the alarm state according to the relationship between the first deviation value and the risk deviation value; in response to determining that the content is unqualified, determining that the second evaluation is inaccurate based on the actual standard deviation value; according to the relationship that the second deviation value is less than or equal to the second deviation threshold, the evaluation concentration value is re-determined based on the theoretical carbon dioxide partial pressure value, so as to re-determine the partial pressure qualification, and the early warning concentration range is re-determined according to the second deviation value; the present application can quickly and accurately obtain the carbon dioxide partial pressure condition through multi-parameter coupling in a non-invasive manner, and can master the alveolar ventilation function and the respiratory function in real time through the carbon dioxide partial pressure condition.

Device for determination of a CO2 partial pressure value on a blood side of an oxygenator having an oxygenator with a blood side, a gas side and a semipermeable membrane, wherein the membrane separates the blood side from the gas side, the gas side has an inlet and an outlet and, during operation of the oxygenator, a gas flow flows into the inlet to the outlet at a flow rate. The device also has a first sensor configured to measure CO2 partial pressure values of the gas side and a control unit configured to process the measured CO2 partial pressure values of the gas side and to determine a CO2 partial pressure value on the blood side based on the measured CO2 partial pressure values of the gas side. The control unit determines the CO2 partial pressure value on the blood side during operation of the oxygenator.

One or more light sensors in an ear-worn device may determine a partial pressure of carbon dioxide in a bloodstream of a patient. A processor of the ear-worn device may determine, based on the partial pressure of carbon dioxide and a threshold, a respiratory pathology of the patient.

One or more light sensors in an ear-worn device may determine a partial pressure of carbon dioxide in a bloodstream of a patient. A processor of the ear-worn device may determine, based on the partial pressure of carbon dioxide and a threshold, a respiratory pathology of the patient.

The present disclosure provides methods of producing recombinant adeno-associated virus (rAAV) wherein rAAV production occurs under a controlled partial pressure of carbon dioxide. Also are methods of producing rAAV under air sparge conditions for modulating the partial pressure of carbon dioxide.

The present invention relates to a gallium oxide single crystal growth method and a single crystal growth apparatus, according to one aspect of the present invention, the gallium oxide single crystal growth method comprising the steps of: supplying a gallium oxide raw material into a crucible containing iridium; injecting carbon dioxide to form a predetermined partial pressure of carbon dioxide to suppress the loss of iridium; a step for melting the gallium oxide raw material supplied into the crucible; and a step for producing a gallium oxide single crystal from the melt of the gallium oxide starting material. Thus, loss of iridium metal contained in the iridium crucible can be minimized thermodynamically.

This invention discloses a carbonate raw meal decomposition device in a high carbon dioxide partial pressure environment. It includes a high carbon dioxide partial pressure furnace, a raw meal buffer silo, a cyclone separator, and a waste heat boiler. The high carbon dioxide partial pressure furnace is connected to the raw meal buffer silo. The high carbon dioxide partial pressure furnace includes a reaction chamber and a vertical combustion furnace body, which are connected. A circulating separator is installed in the vertical combustion furnace body, and the circulating separator is connected to the side of the cyclone separator. The top of the cyclone separator is connected to the waste heat boiler. This invention's device is suitable for the continuous decomposition process of carbonate raw meal in a high carbon dioxide environment, and a material decomposition device has been developed to match the process design. This device can achieve a carbonate raw meal decomposition rate of over 85% at an 80% carbon dioxide concentration, ensuring the quality of cement clinker products after oxygen-enriched / pure oxygen combustion in cement kilns.

The present invention provides a method for estimating the productivity of global land and sea ecosystems based on SIF and light response, including: Step 1, fusing satellite remote sensing image data and meteorological data and performing consistency verification; Step 2, at each pixel point, substituting the input remote sensing data into the mechanical light response (MLR) theoretical formula to estimate the gross primary productivity (GPP), calculating the carbon dioxide partial pressure in the chloroplast stroma, the carbon dioxide compensation point of the chloroplast, the open ratio of the reaction center of the photosynthetic system, the energy ratio of plant heat dissipation and plant-emitted fluorescence, and the escape rate; Step 3, obtaining the distributions of C3 plants and C4 plants using vegetation type distribution data; calculating the gross primary productivity of C3 plants and C4 plants respectively. This solution simplifies the required quantity of vegetation parameters during the inversion process, greatly reduces the difficulty of parameter acquisition while ensuring the inversion accuracy, and at the same time significantly reduces the result uncertainty caused by parameters.

To provide a new method for producing a methylenedianiline compound without the need for formaldehyde.SOLUTION: There is provided a method for producing a methylenedianiline compound, characterized by heating an aniline compound to 25-100°C under a carbon dioxide partial pressure of 0.005-10 MPa (absolute pressure) in the presence of a reducing agent and a catalyst, and then adding an acid and heating to 25-100°C.SELECTED DRAWING: None

The application discloses a stalactite color pool in-situ conservation device and relates to the technical field of water quality treatment. The device comprises a water pump and a source water pool. One side of the water pump is provided with an atomization degassing chamber. One end of the bottom of the atomization degassing chamber is connected with a stirring chamber. One end of the stirring chamber is connected with a steady flow chamber. One side of the steady flow chamber is provided with a rough bed degassing channel. One side of the rough bed degassing channel is provided with a flow collecting chamber. The device atomizes the water of the water source to be repaired by using an atomization nozzle to form water mist, greatly increases the contact area of the water and the gas, makes the carbon dioxide in the water rapidly and massively escape, simultaneously performs secondary strengthened degassing by using the rough bed degassing channel, reduces the carbon dioxide partial pressure in the water body and improves the pH value, improves the SIc index of the water body, promotes the formation of a large number of calcium carbonate particles in the water, and effectively improves the stalactite deposition capacity of the water body.

The invention provides a carbon dioxide partial pressure sensor and application thereof, and relates to the technical field of electrochemistry. The carbon dioxide partial pressure sensor is mainly composed of an electrode substrate, and an electrolyte layer and a breathable film layer which are sequentially loaded on the electrode substrate. Wherein a redox medium in the electrolyte layer is p-benzoquinone. The p-benzoquinone is used as a redox medium in the electrolyte layer, so that the pH change caused by the change of the concentration of carbon dioxide in a solution sample can be directly detected, and the partial pressure of carbon dioxide in the solution can be directly, quickly and accurately detected; meanwhile, on the basis that p-benzoquinone is selected as an oxidation-reduction medium, the carbon dioxide partial pressure sensor can be designed into a single electrode, and the problems that an existing carbon dioxide partial pressure sensor is usually provided with multiple electrodes, and consequently the structure is complex, the response speed is low, and the stability is poor are effectively solved.

A system can include a reforming reactor, a water-gas shift (WGS) reactor, a sub-system to increase the partial pressure of carbon monoxide and carbon dioxide, and a sorption enhanced water-gas shift (SEWGS) reactor. The reforming reactor may react a hydrocarbon feed to produce a reformer effluent that includes carbon monoxide and hydrogen. The WGS reactor may receive the reformer effluent and to convert at least a portion of the carbon monoxide to carbon dioxide and hydrogen and produce a shift effluent. The sub-system may increase the partial pressure of carbon monoxide and carbon dioxide in the shift effluent. The SEWGS reactor may receive the shift effluent with the increased partial pressure of carbon monoxide and carbon dioxide and to provide a carbon-dioxide-rich product stream and a hydrogen-rich product stream.

The invention discloses an in-situ conservation device for a Chuaqua pool, and relates to the technical field of water quality treatment.The in-situ conservation device comprises a water pump and a source pool, an atomization degassing chamber is arranged on one side of the water pump, a stirring chamber is connected to one end of the bottom of the atomization degassing chamber, a flow stabilizing chamber is connected to one end of the stirring chamber, and a rough bed degassing channel is arranged on one side of the flow stabilizing chamber; according to the device, water of a water source to be repaired is atomized into water mist through the atomization nozzles, the contact area of water and gas is greatly increased, a large amount of carbon dioxide in water escapes rapidly, meanwhile, secondary enhanced degassing is conducted through the rough bed degassing channel, and therefore the water mist is formed. By reducing the partial pressure of carbon dioxide in the water body and increasing the pH value, the SIc index of the water body is improved, the formation of a large number of calcium carbonate particles in the water is promoted, and the travertine deposition capacity of the water body is effectively improved.