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70 results about "Breakthrough time" patented technology
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Breakthrough Time. Definition - What does Breakthrough Time mean? Breakthrough time, in the context of chemical exposure, refers to the time between when a harmful chemical liquid touches the outside of a glove or other personal protective equipment and when it breaks the surface to reach the skin.
Test method for intrastratal nonhomogeneous model
The invention relates to a test method for an intrastratal nonhomogeneous model. The method comprises the following steps of: determining the porosity, the air permeability, the water phase permeability, the oil phase effective permeability and the bond water saturation of a plurality of natural reservoir cores serving as single-layer core models respectively; putting all the layers of cores with bond water into a nonhomogeneous multi-layer core holding device according to a reverse rhythm order, wherein the core holding device is provided with a plurality of liquid outlets, each liquid outlet is aligned with a layer of core respectively, a joint between two layers of correspondingly adjacent cores on the right tops of the cores is provided with a sealing gasket, and effluent liquid which passes through each layer of core flows out from the corresponding liquid outlet of each layer; adding 0 to 50MPa of ambient pressure; performing water displacement on the cores at a speed of between 0 and 10ml / min; recording the water breakthrough time, the accumulated oil yield during the water breakthrough time, the accumulated liquid yield, and displacement differential pressure at both ends of each layer of core; and finishing an experiment when the moisture content reaches 99.95 percent. By the test method, the variation rules of nonhomogeneous water displacing oil in each layer can be precisely reflected.
Owner:PETROCHINA CO LTD
Layered Or Mixed Sorbent Bed Protective Filtration Device
InactiveUS20150306536A1Improve current performanceWeight controlGas treatmentDispersed particle filtrationBreakthrough timeFilter media
A filtration device including a fluid-impermeable housing having a gas inlet and outlet, and containing within the housing first filter media particles of an extended surface area substrate and containing at least one metal impregnant, and second filter media particles of an extended surface area zirconium hydroxide substrate and zinc (hydr)oxide. The device may be used in atmospheres containing various harmful gases, and may provide particularly useful improvements in NOx breakthrough times compared to a device containing only the first filter media particles or only the second filter media particles.
Owner:UNITED STATES OF AMERICA +1
Edge water gas reservoir water breakthrough time prediction method
ActiveCN105631529AReduce propulsion speedForecasting3D modellingPredictive methodsPressure difference
The invention belongs to the petroleum and natural gas development technical field and discloses an edge water gas reservoir water breakthrough time prediction method. The method includes the following steps that: edge water gas reservoir geological data and analysis test data are obtained; a three-dimensional geological model under combination modes of four kinds of heterogeneous reservoir stratums is established, and a gas area and an edge water area of an edge water gas reservoir are divided, and a virtual well is established in the gas area of the edge water gas reservoir; and the gas well water breakthrough time of the edge water gas reservoir under the combination modes of the different kinds of heterogeneous reservoir stratums can be accurately predicted through using response relationships between the gas well water breakthrough time and the heterogeneous feature parameters of the reservoir stratums. The method can be used for guiding the adjustment of gas reservoir development work systems. With the method adopted, the output of a well which is to be subject to water breakthrough can be decreased timely, and production pressure difference can be controlled; the advance speed of edge-bottom water can be effectively slowed down; and therefore, technical support can be provided for long-term stability of edge water gas reservoirs.
Owner:CHINA PETROLEUM & CHEM CORP +1
Chemical protective garment with added flash fire protection
ActiveUS20090255039A1High protection against chemicalHigh mechanical strengthChemical protectionHeat protectionFiberPersonal protective equipment
Owner:ANSELL PROTECTIVE SOLUTIONS
Evaporation fuel processing system and purging method therefor
InactiveUS20100132676A1Reliably preventing breakthroughBreakthrough from the canister can reliably be preventedElectrical controlNon-fuel substance addition to fuelBreakthrough timeFuel tank
An evaporation fuel processing system is equipped with a vapor passage, a canister, a purging passage, a purge control valve, a filling amount detector, and an ECU. The ECU comprises an adsorption amount detecting circuit that detects the adsorption amount of an evaporation fuel, which is adsorbed by the canister upon filling of the fuel at a time when a fuel is filled into a fuel tank, a breakthrough time calculating circuit that calculates a time, based on the detected adsorption amount, at which the canister would experience breakthrough in the event that the evaporation fuel were not purged into an engine from the canister, and a control circuit that carries out purge processing by the purge control valve based on the calculated time.
Owner:HONDA MOTOR CO LTD
Determining effluent concentration profiles and service lives of air purifying respirator cartridges
A method for determining at least one of an effluent concentration profile, a breakthrough time and a filter cartridge recommendation includes receiving at least one input parameter, determining at least one of the effluent concentration profile, the breakthrough time and the filter cartridge recommendation based on the input parameter, and graphically displaying at least one of the effluent concentration profile, the breakthrough time, and the filter cartridge recommendation. The effluent concentration profile includes a plot of a concentration of a chemical species over a period of time. The breakthrough time includes a time at which a predetermined concentration of the chemical species passes through a filter cartridge.
Owner:SCOTT TECH INC
Completion design method by bottom water reservoir horizontal well segregated water control
InactiveCN102953713AExtended oil recovery periodMeet the needs of rapid completion designFluid removalBreakthrough timeData information
A completion design method by bottom water reservoir horizontal well segregated water control includes the steps of determining horizontal well water control well sections by analyzing and determining the well sections needing to be packed during segregated completion according to collected data information, and defining final water control well sections; performing optimization design of a segregated scheme by determining reasonable segregated number and segregated length according to the final water control well sections; performing optimization design of a completion scheme by taking minimum difference of water breakthrough time of the water control well sections of the segregated scheme and minimum completion total additional percolating resistance as a principle, optimizing to obtain reasonable liquid production capacity and additional resistance values of the water control well sections, and determining throttling passage parameters of the water control well sections; and performing horizontal well segregated water control completion construction by performing construction of the water control completion scheme according to the reasonable liquid production capacity, the additional resistance values and the throttling passage parameters, and controlling the liquid production capacity of each water control well section to achieve water control and oil stabilization.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Comprehensive method and system for automatically judging connectivity between fractured-vuggy reservoir production wells
ActiveCN106611081AJudging connectivityImprove connectivityDesign optimisation/simulationSpecial data processing applicationsBreakthrough timeRegular Production
The invention relates to a comprehensive method and system for automatically judging connectivity between fractured-vuggy reservoir production wells. The method comprises the following steps of: according to the production data of a well group to be judged, judging the inter-well initial connectivity between any two production wells in the well group to be judged independently on the basis of the production data change, the production curve similarity, the water breakthrough time interval and the pressure drop tendency of adjacent wells when the wells are opened and closed; endowing inter-well initial connectivity, which is obtained by different judgment, between any two production wells in the well group to be judged with different weights, and obtaining the inter-well comprehensive connectivity between any two production wells in the well group to be judged; and according to the inter-well comprehensive connectivity between any two production wells in the well group to be judged, obtaining the connectivity of the well group to be judged. On the basis of conventional production dynamic data, other static data is not required; and the error of single judgment due to interference among multiple wells can be effectively avoided, the change of a practical production work system is comprehensively considered, judgement accuracy is further improved, and the judgment of the connectivity of fractured-vuggy units on the basis of the production data is realized.
Owner:CHINA PETROLEUM & CHEM CORP +2
Determining effluent concentration profiles and service lives of air purifying respirator cartridges
ActiveUS20090298192A1Analysis using chemical indicatorsMaterial analysis by observing effect on chemical indicatorBreakthrough timeChemical species
A method for determining at least one of an effluent concentration profile, a breakthrough time and a filter cartridge recommendation includes receiving at least one input parameter, determining at least one of the effluent concentration profile, the breakthrough time and the filter cartridge recommendation based on the input parameter, and graphically displaying at least one of the effluent concentration profile, the breakthrough time, and the filter cartridge recommendation. The effluent concentration profile includes a plot of a concentration of a chemical species over a period of time. The breakthrough time includes a time at which a predetermined concentration of the chemical species passes through a filter cartridge.
Owner:SCOTT TECH INC
Water-control effect-enhancing fracturing method of carbonate reservoir
ActiveCN105089594ASurface hydrophobicChange wettabilityFluid removalBreakthrough timeFracturing fluid
The invention discloses a water-control effect-enhancing fracturing method of a carbonate reservoir. The water-control effect-enhancing fracturing method comprises design references and methods of such technologies as a fracturing fluid system (a cation fracturing fluid and a water-in-oil emulsion fracturing fluid), a fracturing process (optimal water control and block design, directional sanding and large-scale fracture forming) and a production scheduling system (high pressure limiting liquid drainage and pressure limiting production). The water-control effect-enhancing fracturing method adopts the basic principle that in the fracturing construction process, a highly-flow-guiding fracture with oil passing and water blocking performance is formed, water blocking of a water breakthrough oil reservoir is realized by virtue of the hydrophobicity of a modified propping agent, and water in the fractured water layer can be effectively controlled not to flow into a shaft through the fracture, so that the water control and block performance of the hydrophobic propping agent are given into full play, the production stimulation effect of carbonate reservoir fracturing is improved, the water breakthrough time after fracturing is pushed back, the water yield after fracturing is reduced and the effective fracturing period is prolonged.
Owner:CHINA PETROLEUM & CHEM CORP +1
Method for determining coal bed fractures
ActiveCN102477856AReduce difficultyShorten the timeConstructionsFluid removalBreakthrough timeProduct gas
The invention discloses a method for guiding the layout of gasification furnaces for underground coal gasification and determining the directions of main fractures in underground coal beds. The method comprises the following steps: drilling a central hole above the reserving area of an underground coal bed; drilling a plurality of surrounding holes on a circular layout line centering on the central hole; inputting pressurized air from the central hole to the underground coal bed so as to carry out high-pressure air fracturing; monitoring and determining the flow and components of gas discharged from each surrounding hole; carrying out comparison on the determined flow of each discharged gas, determining the position of a first surrounding hole with the largest flow of discharged gas, and determining the position of a second surrounding hole with the second-largest flow of discharged gas; and according to a formula provided by the invention, carrying out calculation on the angles of the main fractures. The practical and economical method provided by the invention can be used for shortening the breakthrough time for underground coal-bed gasification, and reducing the breakthrough difficulty of underground coal-bed gasification.
Owner:ENN SCI & TECH DEV
Design method for improving waterflooding effect of anisotropic oil reservoir
The invention improves the design for aeolotropy oil reservoir water drive effect in the filed of oil exploration. Aiming at the unbalanced water filling displacement in different directions, big difference for production well's water breakthrough time and unsatisfactory water drive development, in the regular and equal spacing of wells development with filtration parameter anisotropic oil reservoir, the invention proposes an anisotropic well spacing design method and an anisotropic filling and extraction pressure difference design method to improve the oil reservoir water drive development and both of these two methods can be applied to new site well network's well spacing design and existing well network's filling and extraction pressure difference design respectively. Experiments show these two development designs can push the consistent water breakthrough time for production wells in different directions, so as to enlarge the oil reservoir's filling affected scope, improve filling water availability ratio and greatly better the oil reservoir exploration. The invention fills the blank of unavailability of quantitative design criteria for anisotropic well spacing and anisotropic filling and extraction pressure difference in anisotropic oil reservoir exploration with simple method, strong workability and practicality, and therefore makes it valuable for promotion.
Owner:中国石化股份胜利油田分公司地质科学研究院
Separate zone waterflooding technology policy limitation before reservoir water breakthrough
The invention discloses a separate zone waterflooding technology policy limitation before reservoir water breakthrough. The separate zone waterflooding technology policy limitation comprises the following steps of firstly, considering multiple factors comprehensively, establishing a series of injection-production well group typical models, then carrying out numerical simulation research of multi-layer joint injection on the models, taking the water breakthrough time level difference as the longitudinal equilibrium displacement criterion, and evaluating the longitudinal dynamic non-equilibrium degree before reservoir water breakthrough through the Lorentz coefficient; and finally, determining the separate zone waterflooding technology policy limitations before reservoir water breakthrough with different rhythmicity and different well pattern forms according to a Lorentz coefficient warning value. The separate zone waterflooding technology policy limitation before reservoir water breakthrough is more accurate, simpler and easier to operate, can provide the guidance for the division of the oil field on-site separate zone waterflooding technology policy limitations, so that the oil reservoir development effect is improved, and the oil reservoir recovery rate is increased.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
A method and a device for determining a waterflood sweep efficiency of multi-layer reservoirs
ActiveCN106991223ADetermining the Contagion FactorFluid removalDesign optimisation/simulationBreakthrough timeSweep efficiency
The embodiments of the invention provide a method and a device for determining a waterflood sweep efficiency of multi-layer reservoirs. The method comprises the steps of acquiring physical property parameters of each reservoir stratum in a work area; acquiring a waterflood front saturation of each reservoir stratum according to the physical property parameters of each reservoir stratum; determining a waterflood separate injection quantity of each reservoir stratum; determining waterflood front motion speed, breakthrough time and sweep efficiency of each reservoir stratum according to the waterflood separate injection quantity and the waterflood front saturation of each reservoir stratum. The method and the device can determine sweep efficiency of different strata in different time periods.
Owner:PETROCHINA CO LTD
Method and system of controlling exhaust after-treatment apparatus for vehicle
InactiveUS20150308363A1Improve exhaust after-treatment performanceLimited amountInternal-combustion engine testingElectrical controlBreakthrough timeAfter treatment
A system and method for controlling an exhaust after-treatment apparatus for vehicle are provided. The method includes detecting, by a controller, signals from a front lambda sensor and a rear lambda sensor of a Lean NOx Trap (LNT), when an engine is driven in a rich mode and acquiring, by the controller, a temperature of exhaust gas detected by a temperature sensor, when the engine is driven in a rich mode. Further the method includes comparing, by the controller, the signals from the front lambda sensor and the rear lambda sensor to detect a breakthrough time when a breakthrough occurs between the signals from the front lambda sensor and the rear lambda sensor. In addition, the controller is configured to determine an additional rich time period based on the breakthrough time and the temperature of exhaust gas.
Owner:HYUNDAI MOTOR CO LTD
Evaporation fuel processing system and purging method therefor
InactiveUS8770175B2Reliably preventing breakthroughBreakthrough from the canister can reliably be preventedElectrical controlNon-fuel substance addition to fuelBreakthrough timeEvaporation
Owner:HONDA MOTOR CO LTD
Control of fluid flow during treatment of subterranean sites using well fluid injection
InactiveUS20120241148A1Enhanced overall recoveryFluid removalDrilling compositionChemical treatmentMicrobial enhanced oil recovery
Disclosed herein is a method to control distribution of injected microorganisms, nutrients or other chemical treatment fluids from a single injection well to multiple production wells. The sweep efficiency is improved preventing premature production of fluids from production wells with short breakthrough times. This is a useful technique for treatment of subterranean target sites for practice of Microbial Enhanced Oil Recovery and bioremediation.
Owner:EI DU PONT DE NEMOURS & CO
Multi-objective optimization method for current limiting strength of horizontal well inflow control device (ICD)
ActiveCN109577968APerfect selectionTaking into account the requirements of sand controlFluid removalDesign optimisation/simulationCurrent limitingBreakthrough time
The invention provides a multi-objective optimization method for current limiting strength of a horizontal well inflow control device (ICD). The multi-objective optimization method includes building ahorizontal well ICD completion flow coupling model; taking the horizontal well yield and water breakthrough time variable coefficient as the objective function, setting constraint conditions and building an ICD current limiting strength multi-objective optimization model; solving the multi-objective optimization model through an NSGA-II algorithm to obtain the optimal solution set of the multi-objective optimization method; ranking according to the the distance from all solutions in the optimal solution set to the ideal optimal solution and the ideal inferior solution through the Topsis method, thereby acquiring the optimal solution of the current limiting strength of the horizontal well ICD .
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)
Systems and Methods for Estimating Fluid Breakthrough Times at Producing Well Locations
Systems and methods for estimating fluid breakthrough times at producing well locations based on fluid propagation simulation.
Owner:LANDMARK GRAPHICS
Method and a device for predicting water breakthrough time of a bottom water condensate gas reservoir
PendingCN109033518AImprove accuracyDesign optimisation/simulationSpecial data processing applicationsBreakthrough timeRetrograde condensation
The invention provides a method and a device for predicting water breakthrough time of a bottom water condensate gas reservoir. The method comprises the following steps: based on the factors of skin effect, gas non-Darcy effect and retrograde condensation, the calculation model of water breakthrough time of bottom water condensate gas reservoir is established based on the gas plane radial abortionenergy model of perforated interval and the gas hemispherical centripetal abortion energy model of the lower part of perforated interval; actual production data of bottom water condensate gas reservoir are obtained. Based on the water breakthrough time calculation model of the bottom water condensate gas reservoir, the water breakthrough time of the bottom water condensate gas reservoir is predicted according to the actual production data of the bottom water condensate gas reservoir. Because the influence of non-Darcy effect, skin effect and retrograde condensation on water breakthrough timenear the bottom hole is considered comprehensively in this scheme, the water breakthrough time calculation model which is more suitable for the water cone behavior of bottom water condensate gas reservoir can be established, and the accuracy of water breakthrough time prediction can be improved.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2
Method for producing hydrogen through adsorbing, reinforcing and reforming glycerinum
ActiveCN107098311AHigh hydrogen contentStable hydrogen concentrationHydrogenHydrogen/synthetic gas productionAir atmosphereHydrogen
The invention discloses a method for producing hydrogen through adsorbing, reinforcing and reforming glycerinum. The method comprises the steps of filling a Ca-Co-O catalyst with functions of catalyzing and absorbing CO2 in a fixed bed reactor, and under the condition of adopting inert gas as a carrier gas, feeding glycerite with the concentration being 0.124 to 0.749g / ml at the weight hourly space velocity of 0.066 to 2.624h<-1>, wherein the reaction temperature is 400 to 700 DEG C; after the adsorption of the CO2 is saturated, carrying out catalyst regeneration for 0.1 to 6h at 500 to 1000 DEG C in the air atmosphere. The Ca-Co-O catalyst is prepared through the following steps of dissolving and mixing cobalt salt and calcium salt in water, and after drying, calcining for 1 to 10h at 500 to 1000 DEG C. The hydrogen obtained in the invention is aroundbout 95 percent in whole 30 circles of tests, meanwhile, the CO2 absorption breakthrough time is stabilized in 9min, and the catalyst is simple in preparation process and easy for mass production.
Owner:SOUTH CHINA UNIV OF TECH
Devices and methods for determining and predicting breakthrough times and steady state permeation rates of organics
InactiveUS20050026294A1Material analysis by electric/magnetic meansTextile testingResponse factorBreakthrough time
Methods and devices for determining the breakthrough times and steady state permeation rates of a chemical sample through a material and calibration methods that utilize the principal of relative carbon response factors using flame ionization responses of a reference gas.
Owner:DOW REICHHOLD SPECIALTY LATEX LLC
Highly-efficient flow control sieve tube
The invention discloses a highly-efficient flow control sieve tube. The sieve tube comprises a parent tube, wherein the parent tube is provided with a parent tube inlet; a filtering sleeve is sleeved outside the parent tube; a circumferential seam between the parent tube and the filtering sleeve is a flow deflecting layer; and the sieve tube is provided with a flow control device of which an inlet is communicated with the flow deflecting layer, while an outlet is communicated with the parent tube inlet. Under the condition of the relatively greater viscosity ratio of oil water, the sieve tube of the invention is cased off so that water yield is greatly reduced and oil production is slightly reduced. Before the surface of the oil water reaches the sieve tube, the flow velocities of a fluid at each position along a production section are substantially the same, which plays a role in controlling the uniform advancing of the oil water and delaying water breakthrough time.
Owner:ANTON OILFIELD SERVICES (GRP) LTD
Water breakthrough time prediction method and device for low permeability bottom water gas reservoir
InactiveCN108830410AAccurate prediction of water breakthrough timeImprove development efficiencyForecastingBreakthrough timeGas phase
The invention provides a water breakthrough time prediction method and device for a low permeability bottom water gas reservoir. The method comprises the following steps of building a water breakthrough time computing model based on a gas phase plane radial flow throughput model and a hemispherical centripetal flow of the lower part of a perforated zone according to a gas phase non-Darcy flow effect influence factor and a stratum skin effect influence factor; acquiring actual production data of the low permeability bottom water gas reservoir; and predicting the water breakthrough time of the low permeability bottom water gas reservoir according to the actual production data of the low permeability bottom water gas reservoir based on the water breakthrough time computing model of the low permeability bottom water gas reservoir. The scheme comprehensively considers the influences of the gas phase non-Darcy flow effect and the stratum skin effect, and builds the dynamic water breakthroughtime computing model fitter for the fracturing well water cone of the low permeability bottom water gas reservoir, so that the water breakthrough time of the low permeability bottom water gas reservoir can be accurately predicted, and the guiding significance and practical value are provided for improving development benefit and reasonable production allocation of the low permeability bottom water gas reservoir.
Owner:BC P INC CHINA NAT PETROLEUM CORP +2
Multifunctional combined dry hot rock energy storage heating system
PendingCN109826595AAvoid wastingDelay thermal temperature breakthrough timeLighting and heating apparatusGeothermal energy generationElectricityWater storage
The invention discloses a multifunctional combined dry hot rock energy storage heating system, which comprises a primary filtering reservoir, wherein the primary filtering reservoir is communicated with a secondary filtering reservoir; the secondary filtering reservoir is communicated with a recharge well straight well section through a transmission pipeline; the bottom end of the recharge well straight well section is communicated with the water inlet end of a dry hot rock water storage system through a recharge well inclined well section; the water outlet end of the dry hot rock water storage system is communicated with the bottom end of a geothermal water exploitation well straight well section through a geothermal water exploitation well horizontal well section; a submersible pump is arranged in the geothermal water exploitation well straight well section. According to the system, the exploitation efficiency of the dry hot rock can be improved by controlling the water injection time, the water injection amount and the water injection temperature, the temperature breakthrough time of the geothermal well is delayed, the problems of waste wind and waste light resources caused by wind power and photoelectric are comprehensively solved, and the wind power and photoelectric in a small area are used for heating geothermal tail water and ground surface replenishment cold water, sothat the sustainable development of the geothermal resources of the dry hot rock is ensured.
Owner:INST OF ROCK AND SOIL MECHANICS - CHINESE ACAD OF SCI
Pressure-variable adsorption gas separation device
InactiveCN102600699ARealize pressure equalizationImproving the impact of effective separation capabilitiesDispersed particle separationProduction rateBreakthrough time
Owner:长兴山立化工材料科技有限公司
Control of fluid flow during treatment of subterranean sites using well fluid injection
Owner:EI DU PONT DE NEMOURS & CO
Systems and methods for estimating fluid breakthrough times at producing well locations
Owner:LANDMARK GRAPHICS CORP
Municipal solid waste landfill barrier system capable of prolonging breakthrough time of leachate and manufacturing method thereof
ActiveUS20180016766A1Extension of timeOvercome deficienciesSolid waste disposalLandfill technologiesBreakthrough timeGeomembrane
The invention relates to a MSW landfill barrier system capable of prolonging breakthrough time of leachate and a manufacturing method thereof. The system comprises a leachate collection and removal layer, a first HDPE (high-density polyethylene) geomembrane infiltration proof layer (2), a clay liner (5) and a groundwater collection and removal layer (6) which are sequentially stacked from top to bottom. The clay liner (5) is composed of a lower clay liner (51), a middle clay liner (52) and an upper clay liner (53) which are sequentially arranged, wherein the middle clay liner (52) is filled with a medium-fine sand layer (7) laid with sands of particle sizes ranging from 0.1 mm to 0.5 mm and of water content ≦3%, wherein the saturated hydraulic conductivity of the medium-fine sand layer (7) varies from 1×10−5 to 1×10−3. A method of manufacturing the MSW landfill barrier system capable of prolonging breakthrough time of leachate is also provided.
Owner:HOHAI UNIV
Method and Apparatus for Gas Filter Testing
InactiveUS20090165528A1Easy to carryEasy to measureGas treatmentDispersed particle separationMeasurement testIndustrial Accident
A method is described to determine the remaining sorption capacity of activated-carbon-sorbent gas filters by measuring the breakthrough time for a test gas challenge to a test filter with known and controlled test conditions that include flow rate and temperature and the use of a calibration curve that has been established by prior testing of the test filter sorbent medium in calibration tests where the filter is exposed to a known quantity of gas surrogate for the challenge gases that the filter may sorb in service and then testing the test filter medium by challenge with a sparged gas that can be selectively detected to determine the breakthrough as a function of test gas. The apparatus using such a method comprises a portable system that includes a sparging test gas generator, a carrier gas system, a test filter canister holder, and a selective detector that can quantitatively monitor the test gas exiting the test filter canister. The method and apparatus can be used to determine the remaining sorption capacity of activated carbons filters, e.g., ASZM-TEDA carbon filters such as those used for building defense against chemical toxant attack, industrial accidents, and for tactical collective protection and for industrial ventilation and compliance with environmental regulations.
Owner:BIOMED PROTECT
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