Penetration curve analyzer with tail blowing reference gas quantification function and quantification method thereof

Abstract

The invention discloses a penetration curve analyzer with a tail blowing reference gas quantification function and a quantification method thereof, and belongs to the technical field of penetration curve analyzers, the penetration curve analyzer comprises a detector, a penetration column, a tail blowing reference gas tee joint, a first mass flow controller, a second mass flow controller and a third mass flow controller; wherein the second mass flow controller and the third mass flow controller are connected in parallel to an inlet pipe of the penetrating column through a pipeline; an outlet pipe of the penetrating column is connected to a first interface of the tail blowing reference gas tee joint; the detector is connected to a second interface of the tail blowing reference gas tee joint; and the first mass flow controller is connected to a third interface of the tail blowing reference gas tee joint through a pipeline. The penetration curve analyzer detects the flow at the outlet of the penetration column in real time in an external standard quantification mode of introducing the tail blowing reference gas, and further accurately detects the adsorption quantity of a certain component in a penetration curve.

Description

Technical Field

[0001] The invention relates to the technical field of penetration curve analyzers, and in particular to a penetration curve analyzer with a tail-blowing reference gas quantitative function and a quantitative method thereof. Background Art

[0002] The penetration curve analyzer is an instrument for testing the adsorption and separation ability of an adsorbent for adsorbates (gas or vapor) of multiple components. Its working principle is: multiple components of adsorbates with known concentrations are introduced from the inlet of the penetration column, and then a concentration detector is connected to the outlet of the penetration column to detect the concentration of the adsorbate gas of each component at the outlet of the penetration column. The signal of the adsorbate of each component detected by the concentration detector is a concentration signal. The concentration needs to be converted into flow rate. The amount of adsorbate of each component adsorbed by the adsorbent can be calculated by subtracting the amount flowing out of the penetration column and the amount of free space in the penetration column from the amount flowing into the penetration column. However, to calculate the flow rate of each component at the outlet of the penetration column, when the concentration of each component is known, the total flow rate at the outlet of the penetration column needs to be known. Since the total flow rate at the outlet of the penetration column changes in real time during the test, it is impossible to directly and accurately measure the outflow of a component in the penetration curve, and it is also impossible to accurately obtain the adsorption amount of each component.

[0003] In view of this, the present invention is proposed. Summary of the invention

[0004] The purpose of the present invention is to provide a penetration curve analyzer with a tail blowing reference gas quantitative function and a quantitative method thereof, which can accurately measure the total flow rate of the mixed gas at the outlet end of the penetration column during the penetration curve test, thereby obtaining the flow rate of a certain component in the mixed gas, thereby solving the above-mentioned technical problems existing in the prior art.

[0005] The objective of the present invention is achieved through the following technical solutions:

[0006] A penetration curve analyzer with a tail-blowing reference gas quantitative function, comprising:

[0007] A detector, a penetration column, a tail blowing reference gas tee, a first mass flow controller, a second mass flow controller and a third mass flow controller; wherein,

[0008] The second mass flow controller and the third mass flow controller are connected in parallel to the inlet pipe of the penetration column via pipelines;

[0009] The outlet pipe of the penetration column is connected to the first interface of the tail-blowing reference gas tee;

[0010] The detector is connected to the second interface of the tail-blowing reference gas tee;

[0011] The first mass flow controller is connected to the third interface of the tail-blowing reference gas tee via a pipeline.

[0012] A quantitative method for a penetration curve analyzer with a tail-blowing reference gas quantitative function, used for the penetration curve analyzer with a tail-blowing reference gas quantitative function of the present invention, comprising:

[0013] The tail blowing reference gas is controlled by a first mass flow controller, and the adsorbate gas is controlled by a second mass flow controller and a third mass flow controller;

[0014] The second mass flow controller and the third mass flow controller control the mixed gas of a certain concentration to enter the penetration column;

[0015] The adsorbate gas flowing out of the outlet pipe of the penetration column and the tail blowing reference gas controlled by the first mass flow controller enter the detector through the tail blowing reference gas tee and are detected to obtain the adsorption amount of a certain component in the penetration curve.

[0016] Compared with the prior art, the penetration curve analyzer with tail-blowing reference gas quantitative function and the quantitative method thereof provided by the present invention have the following beneficial effects:

[0017] By connecting a tail-blowing reference gas tee to the outlet pipe of the penetration column, and respectively connecting a detector and a first mass flow controller capable of controlling the tail-blowing reference gas through the tail-blowing reference gas tee, the detector can detect the adsorbate gas flowing out of the outlet pipe of the penetration column and the tail-blowing reference gas controlled by the first mass flow controller, and accurately obtain the adsorption amount of a certain component in the penetration curve. The structure of the penetration curve analyzer is not complicated, and the flow rate at the outlet of the penetration column can be detected in real time by introducing an external standard quantitative method of the tail-blowing reference gas, thereby accurately detecting the adsorption amount of a certain component in the penetration curve. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0019] Figure 1 A schematic diagram of the structure of a penetration curve analyzer with a tail-blowing reference gas quantitative function provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0020] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in combination with the specific content of the present invention; it is obvious that the described embodiments are only part of the embodiments of the present invention, not all of the embodiments, which does not constitute a limitation of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the protection scope of the present invention.

[0021] First, the terms that may be used in this article are explained as follows:

[0022] The term “and / or” means that either or both of them can be realized at the same time. For example, X and / or Y means both “X” or “Y” and “X and Y”.

[0023] The terms "include", "comprises", "contains", "has" or other descriptions with similar semantics should be interpreted as non-exclusive inclusion. For example, including certain technical feature elements (such as raw materials, components, ingredients, carriers, dosage forms, materials, dimensions, parts, components, mechanisms, devices, steps, procedures, methods, reaction conditions, processing conditions, parameters, algorithms, signals, data, products or products, etc.) should be interpreted as including not only certain technical feature elements explicitly listed, but also other technical feature elements known in the art that are not explicitly listed.

[0024] The term "consisting of..." means excluding any technical feature elements not explicitly listed. If this term is used in a claim, it will make the claim closed, so that it does not contain technical feature elements other than the technical feature elements explicitly listed, except for the conventional impurities related to them. If this term only appears in a clause of a claim, it only limits the elements explicitly listed in the clause, and the elements recorded in other clauses are not excluded from the overall claim.

[0025] Unless otherwise specified or limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example: it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in this article can be understood according to specific circumstances.

[0026] When concentration, temperature, pressure, size or other parameters are expressed in the form of a numerical range, the numerical range should be understood to specifically disclose all ranges formed by the pairing of any upper limit, lower limit, and preferred value in the numerical range, regardless of whether the range is explicitly stated; for example, if a numerical range of "2 to 8" is stated, the numerical range should be interpreted as including ranges such as "2 to 7", "2 to 6", "5 to 7", "3 to 4 and 6 to 7", "3 to 5 and 7", "2 and 5 to 7", etc. Unless otherwise specified, the numerical ranges stated herein include both their end values ​​and all integers and fractions within the numerical range.

[0027] The orientation or position relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. are based on the orientation or position relationship shown in the drawings and are only for the convenience and simplification of description, and do not explicitly or implicitly indicate that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation of this document.

[0028] The scheme provided by the present invention is described in detail below. The contents not described in detail in the embodiments of the present invention belong to the prior art known to professionals in the field. If the specific conditions are not specified in the embodiments of the present invention, they are carried out according to the conventional conditions in the field or the conditions recommended by the manufacturer. If the manufacturers are not specified in the reagents or instruments used in the embodiments of the present invention, they are all conventional products that can be purchased commercially.

[0029] like Figure 1 As shown, an embodiment of the present invention provides a penetration curve analyzer with a tail-blowing reference gas quantitative function, comprising:

[0030] A detector, a penetration column, a tail blowing reference gas tee, a first mass flow controller, a second mass flow controller and a third mass flow controller; wherein,

[0031] The second mass flow controller and the third mass flow controller are connected in parallel to the inlet pipe of the penetration column via pipelines;

[0032] The outlet pipe of the penetration column is connected to the first interface of the tail-blowing reference gas tee;

[0033] The detector is connected to the second interface of the tail-blowing reference gas tee;

[0034] The first mass flow controller is connected to the third interface of the tail-blowing reference gas tee via a pipeline.

[0035] See also Figure 1The embodiment of the present invention further provides a quantitative method of a penetration curve analyzer with a tail blowing reference gas quantitative function, which is used for the above-mentioned penetration curve analyzer with a tail blowing reference gas quantitative function, comprising:

[0036] The tail blowing reference gas is controlled by a first mass flow controller, and the adsorbate gas is controlled by a second mass flow controller and a third mass flow controller;

[0037] The second mass flow controller and the third mass flow controller control the mixed gas of a certain concentration to enter the penetration column;

[0038] The adsorbate gas flowing out of the outlet pipe of the penetration column and the tail blowing reference gas controlled by the first mass flow controller enter the detector through the tail blowing reference gas tee and are detected to obtain the adsorption amount of a certain component in the penetration curve.

[0039] Preferably, in the above method, the detector detects and calculates the adsorption amount of a component in the breakthrough curve according to the following formula:

[0040]

[0041] The meaning of each parameter in the above formula is:

[0042] Q i吸附 : represents the total adsorption of the sample on component i;

[0043] Q i入总 : represents the total inflow of component i;

[0044] Q i出总 : represents the total outflow of component i;

[0045] q i入 : represents the inlet flow rate of component i;

[0046] Δt: indicates the total test duration;

[0047] q 参比气 : Indicates the tail blowing reference gas flow rate;

[0048] C j : Indicates the concentration of other components except the tail blowing reference gas;

[0049] n: represents the number of gas species flowing out of the outlet pipe of the penetration column;

[0050] C i吸附质 : represents the outlet concentration of component i;

[0051] t: represents the test time, and its value range is 0<t<Δt.

[0052] In summary, it can be seen that the penetration curve analyzer and quantitative method of the embodiment of the present invention are connected to the outlet pipe of the penetration column by the tail blowing reference gas tee, and the detector and the first mass flow controller that can control the tail blowing reference gas are respectively connected through the tail blowing reference gas tee. The detector can detect the adsorbate gas flowing out of the outlet pipe of the penetration column and the tail blowing reference gas controlled by the first mass flow controller, and accurately obtain the adsorption amount of a certain component in the penetration curve. The structure of the penetration curve analyzer is not complicated, and the flow rate of the penetration column outlet can be detected in real time by introducing an external standard quantitative method of the tail blowing reference gas, so as to accurately detect and obtain the adsorption amount of a certain component in the penetration curve. The present invention adopts an external standard quantitative method, that is, between the outlet end of the penetration column and the concentration detector, a tail blowing reference gas with a known flow rate is introduced, and the total flow rate of the adsorbate at the outlet of the penetration column is obtained in real time by the flow rate and concentration of the tail blowing reference gas, thereby obtaining the real-time flow rate of each component at the outlet end of the penetration column.

[0053] In order to more clearly demonstrate the technical solution and technical effects provided by the present invention, the solution provided by the embodiment of the present invention is described in detail with specific embodiments below.

[0054] Example 1

[0055] This embodiment provides a penetration curve analyzer with a tail-blowing reference gas quantitative function, and its structure is as follows: Figure 1 As shown, including:

[0056] Detector 6, penetration column 1, tail blowing reference gas tee 5, first mass flow controller 2, second mass flow controller 3 and third mass flow controller 4; wherein,

[0057] The second mass flow controller 3 and the third mass flow controller 4 are connected in parallel to the inlet pipe of the penetration column via pipelines; the second mass flow controller 3 and the third mass flow controller 4 control the adsorbate gas;

[0058] The outlet pipe of the penetration column 1 is connected to the first interface of the tail-blowing reference gas tee 5;

[0059] The detector 6 is connected to the second interface of the tail-blowing reference gas tee 5;

[0060] The first mass flow controller 2 is connected to the third interface of the tail-blow reference gas tee 5 via a pipeline, and the first mass flow controller 2 controls the tail-blow reference gas.

[0061] Example 2

[0062] This embodiment provides a quantitative method of a penetration curve analyzer with a tail-blowing reference gas quantitative function, which is used for the penetration curve analyzer with a tail-blowing reference gas quantitative function described in Example 1, comprising:

[0063] The second mass flow controller and the third mass flow controller control the mixed gas of a certain concentration to enter the penetration column;

[0064] A tail-blow reference gas tee is set between the penetration column outlet pipe and the detector. The first mass flow controller connected to the tail-blow reference gas tee controls the entry of the tail-blow reference gas. The adsorbate gas and the tail-blow reference gas flowing out of the penetration column outlet pipe are mixed and enter the detector for detection to obtain the adsorption amount of a certain component in the penetration curve.

[0065] The detector detects the adsorption amount of a component in the breakthrough curve obtained by the following formula, and the calculation formula is:

[0066]

[0067] The meaning of each parameter in the above formula is:

[0068] Q i吸附 : represents the total adsorption of the sample on component i;

[0069] Q i入总 : represents the total inflow of component i;

[0070] Q i出总 : represents the total outflow of component i;

[0071] q i入 : represents the inlet flow rate of component i;

[0072] Δt: indicates the total test duration;

[0073] q 参比气 : Indicates the tail blowing reference gas flow rate;

[0074] C j : Indicates the concentration of other components except the tail blowing reference gas;

[0075] n: represents the number of gas species flowing out of the outlet pipe of the penetration column;

[0076] C i吸附质 : represents the outlet concentration of component i;

[0077] t: represents the test time, and its value range is 0<t<Δt.

[0078] In summary, it can be seen that the penetration curve analyzer and quantitative method with tail-blowing reference gas quantitative function in the embodiments of the present invention, by connecting a tail-blowing reference gas tee to the outlet pipe of the penetration column, and the tail-blowing reference gas tee is respectively connected to a detector and a first mass flow controller that can control the tail-blowing reference gas, thereby realizing real-time detection of the flow rate at the outlet of the penetration column by introducing an external standard quantitative method of the tail-blowing reference gas, and then accurately detecting the adsorption amount of a certain component in the penetration curve.

[0079] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or substitutions that can be easily thought of by any technician familiar with the technical field within the technical scope disclosed in the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims. The information disclosed in the background technology section of this article is only intended to deepen the understanding of the overall background technology of the present invention, and should not be regarded as an admission or in any form that the information constitutes prior art known to those skilled in the art.

Claims

1. A penetration curve analyzer with tail-blowing reference gas quantitative function, characterized in that: include: A detector, a penetration column, a tail blowing reference gas tee, a first mass flow controller, a second mass flow controller and a third mass flow controller; wherein, The second mass flow controller and the third mass flow controller are connected in parallel to the inlet pipe of the penetration column via pipelines; The outlet pipe of the penetration column is connected to the first interface of the tail-blowing reference gas tee; The detector is connected to the second interface of the tail-blowing reference gas tee; The first mass flow controller is connected to the third interface of the tail-blowing reference gas tee via a pipeline.

2. A quantitative method for a penetration curve analyzer with a tail-blowing reference gas quantitative function, characterized in that: The penetration curve analyzer with tail-blowing reference gas quantitative function as claimed in claim 1 comprises: The tail blowing reference gas is controlled by a first mass flow controller, and the adsorbate gas is controlled by a second mass flow controller and a third mass flow controller; The second mass flow controller and the third mass flow controller control the mixed gas of a certain concentration to enter the penetration column; The adsorbate gas flowing out of the outlet pipe of the penetration column and the tail blowing reference gas controlled by the first mass flow controller enter the detector through the tail blowing reference gas tee and are detected to obtain the adsorption amount of a certain component in the penetration curve.

3. The quantitative method of the penetration curve analyzer with tail-blowing reference gas quantitative function according to claim 2, characterized in that: The detector detects and calculates the adsorption amount of a component in the breakthrough curve according to the following formula: The meaning of each parameter in the above formula is: Q i吸附 : represents the total adsorption of the sample on component i; Q i入总 : represents the total inflow of component i; Q i出总 : represents the total outflow of component i; q i入 : represents the inlet flow rate of component i; Δt: indicates the total test duration; q 参比气 : Indicates the tail blowing reference gas flow rate; C j : Indicates the concentration of other components except the tail blowing reference gas; n: represents the number of gas species flowing out of the outlet pipe of the penetration column; C i吸附质 : represents the outlet concentration of component i; t: represents the test time, and its value range is 0<t<Δt.

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