KR20230040267A - Processing Apparatus for Gas Chromatography and Thermal Countermeasure Method - Google Patents

Abstract

The present invention relates to a processing apparatus (100) for gas chromatography, which reduces transfer of heat from a catalyst portion to a valve portion, and oxidizes or reduces a gas component separated by a column (11) of the gas chromatography (10), in which the processing apparatus comprises: a catalyst portion (2) having an oxidation catalyst and a reduction catalyst; a valve portion (3) for converting the gas component into an oxidation path (L1) for guiding the gas component to the oxidation catalyst or an oxidation reduction path (L2) for guiding the gas component to the oxidation catalyst and the reduction catalyst; and a dividing portion (6) provided between the catalyst portion (2) and the valve portion (3) to divide a portion between the catalyst portion (2) and the valve portion (3).

Description

Processing apparatus for gas chromatography, and heat countermeasure method thereof {Processing Apparatus for Gas Chromatography and Thermal Countermeasure Method}

The present invention relates to a processing device for gas chromatography and a method for countermeasures therefor.

Conventionally, as shown in Patent Literature 1, a gas chromatography processing device that oxidizes or oxidizes a gas component separated by a gas chromatography column and leads it to a detector such as an FID detector has been considered.

This processing apparatus for gas chromatography includes a catalyst section having an oxidation catalyst and a reduction catalyst, a flow path through which separated gas components flow only to the oxidation catalyst, or a passage through which separated gas components flow through both the oxidation catalyst and the reduction catalyst. A valve portion for switching to a flow path is provided, and the flow path is switched by the valve portion to oxidize or reduce oxidation according to the component to be treated.

However, in the catalyst section, the oxidation catalyst and the reduction catalyst are heated to a desired catalyst temperature (eg 400), and heat from the catalyst section is transmitted to the valve section. In doing so, the valve unit may become above the heat resistance temperature and fail.

Patent Document 1: International Publication No. WO2015/083794

Therefore, the present invention has been made in view of the problems described above, and in a processing apparatus for gas chromatography, the main purpose of which is to reduce the transfer of heat from a catalyst unit having an oxidation catalyst and a reduction catalyst to a valve unit. to do as a task.

That is, a processing device for gas chromatography according to the present invention is a processing device for gas chromatography that oxidizes or oxidizes a gas component separated by a gas chromatography column, and includes a catalyst unit having an oxidation catalyst and a reduction catalyst; A valve unit for switching to an oxidation path for guiding the gas component to the oxidation catalyst or an oxidation-reduction path for guiding the gas component to the oxidation catalyst and the reduction catalyst, provided between the catalyst unit and the valve unit, It is characterized in that it has a dividing part dividing between the catalyst part and the valve part.

In such a processing apparatus for gas chromatography, since a dividing portion dividing the catalyst portion and the valve portion is provided between the catalyst portion and the valve portion, it is possible to reduce heat transfer from the catalyst portion to the valve portion. As a result, it is possible to prevent the valve section from becoming higher than the heat resistance temperature. For example, when it is necessary to oxidize or reduce a chlorine compound or the like, the catalyst temperature needs to be set to 600°C in order to advance the reaction 100%. This is relieved, and the valve part can be made below the heat resistance temperature. In addition, in the case of the configuration without the dividing section, when the catalyst temperature is set to 600°C, the valve section is heated to a heat resistance temperature or higher due to heat transfer from the catalyst section to the valve section.

In addition, by providing the dividing portion, the valve portion can be heated to a constant temperature regardless of heat from the catalyst portion, and flow rate change due to temperature change of the valve portion can be prevented. When gas components oxidized or oxidized-reduced by the processing apparatus for gas chromatography are detected, for example, with a detector such as an FID detector, noise reduction or drift reduction of the baseline can be realized, and minimum detection due to noise increase A decrease in sensitivity can be prevented.

As a specific embodiment of the divider, the processing apparatus for gas chromatography according to the present invention further includes a first cover body covering the catalyst portion and a second cover body covering the valve portion, and the first cover body or It is preferable that at least one of the second cover bodies has the dividing portion.

Thus, by covering the catalyst part with the first cover body and covering the valve part with the second cover body, the accommodating space of the catalyst part and the accommodating space of the valve part can be separated. As a result, while being able to suppress heat transfer from the catalyst part to the valve part, it is possible to easily adjust the temperature of each of the catalyst part and the valve part.

Preferably, each of the first cover body and the second cover body has the divider portion, and the divider portion of the first cover body and the divider portion of the second cover body are disposed at a predetermined distance from each other. do.

With this configuration, an air layer can be formed between the divided portion of the first cover body and the divided portion of the second cover body, and the heat insulating effect can be improved also by the air layer. As a result, the heat from the catalyst part is more difficult to transfer to the valve part.

A heat insulating material may be provided between the divider of the first cover body and the divider of the second cover body in order to prevent heat from the catalyst unit from being transmitted to the valve unit.

In order to control the temperature of each of the catalyst part or the valve part to a desired temperature, it is preferable that the catalyst part has a temperature control part for the catalyst, or that the valve part has a temperature control part for the valve.

As a specific arrangement of the valve unit, it is preferable that the valve unit is provided above the catalyst unit. When the valve section is disposed above the catalytic section, heat from the catalytic section tends to be transferred to the valve section by convection. It becomes difficult to convey to

As a peripheral structure of the catalyst part and the valve part, a pipe constituting the oxidation path or the oxidation-reduction path is provided between the catalyst part and the valve part. In order to provide a divider between the catalyst section and the valve section while avoiding this piping, so as to make it difficult for heat from the catalyst section to be transferred to the valve section, it is preferable that a slit is formed in the divider section to avoid the pipe. .

As a specific configuration for supporting the catalyst portion and the valve portion, it is conceivable that the processing apparatus for gas chromatography of the present invention further includes a support for supporting the catalyst portion and the valve portion.

In this configuration, in order to make it difficult for heat from the catalyst section to be transferred to the valve section through the support, it is preferable that a heat insulating section is provided between the catalyst section and the support or between the valve and the support.

Further, a heat protection method for a gas chromatography processing apparatus according to the present invention is a heat protection method for a gas chromatography processing apparatus for oxidizing or oxidizing/reducing gas components separated by a gas chromatography column, comprising an oxidation catalyst and Between a catalyst unit having a reduction catalyst and an oxidation path for guiding the gas component to the oxidation catalyst, or a valve unit for switching the gas component to an oxidation-reduction path for guiding the gas component to the oxidation catalyst and the reduction catalyst, It is characterized by providing a dividing part dividing between the catalyst part and the valve part.

According to the present invention described above, in the processing apparatus for gas chromatography, transmission of heat from the catalyst section to the valve section can be reduced.

1 is a diagram schematically showing the configuration of a processing device for gas chromatography according to an embodiment of the present invention.
2 is a diagram schematically showing the configuration of a flow path of a processing device for gas chromatography according to an embodiment of the present invention.
3 is a schematic diagram showing (a) an oxidation pathway (L1) and (b) a redox pathway (L2) of one embodiment of the present invention.
Fig. 4 is a cross-sectional view of (a) a front view schematically showing a specific configuration of a processing apparatus for gas chromatography according to an embodiment of the present invention, and (b) a control block diagram.
Fig. 5 is a cross-sectional view schematically showing a specific configuration of a processing device for gas chromatography according to an embodiment of the present invention, viewed from the side.
Fig. 6 is a perspective view schematically showing the configuration of (a) a first cover body and (b) a second cover body according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Below, the gas chromatography processing apparatus which concerns on one embodiment of this invention is described with reference to drawings. In addition, about all the drawings shown below, in order to make it easy to understand, it is appropriately abbreviate|omitted or exaggerated and is drawn typically. About the same component, the same code|symbol is attached|subjected and description is abbreviate|omitted suitably.

<Device Configuration>

The processing device 100 for gas chromatography of the present embodiment is provided between the detector 12 and the column 11 of the gas chromatography 10 that analyzes the sample gas, for example. The separated gas components (hereinafter, referred to as 'separated components') are oxidized or oxidized-reduced to lead to the detector 12. The detector 12 can be appropriately changed according to the type of sample gas, such as a hydrogen salt ionization detector (FID), a thermal conductivity detector (TCD), or a thermal ionization detector (FTD).

As shown in FIG. 1 , this processing apparatus 100 for gas chromatography is mounted on the upper surface of an oven 13 that heats the column 11 of the gas chromatography 10, for example. Then, as shown in FIGS. 1 and 2 , the processing apparatus 100 for gas chromatography includes an introduction port P1 into which the separated components from the column 11 are introduced, and the separated components oxidized or oxidized and reduced into gas. It has a lead-out port P2 leading to the detector 12 of the chromatography 10. The inlet port P1 and the outlet port P2 are piping constituting an oxidation path L1 (see FIG. 3 (a)) and an oxidation-reduction path L2 (see FIG. 3 (b)), which will be described later ( H1 to H5) are connected.

Specifically, as shown in FIGS. 2 to 5 , the processing apparatus 100 for gas chromatography includes a catalyst unit 2 having an oxidation catalyst and a reduction catalyst, and an oxidation path L1 that guides separated components only to the oxidation catalyst. (See FIG. 3(a)), or the valve unit 3 for switching to the oxidation-reduction pathway L2 (see FIG. 3(b)) that guides the separated components to both the oxidation catalyst and the reduction catalyst. are equipped In addition, the catalyst part 2 and the valve part 3 are accommodated in the housing C forming the rectangular parallelepiped shape, for example, as shown in FIGS. 4 and 5 .

The catalyst unit 2 includes an oxidation catalyst unit 21 in which an oxidation catalyst is filled in a flow path through which separation components flow, a reduction catalyst unit 22 in which a reduction catalyst is filled in a flow path through which separation components flow, an oxidation catalyst and a reduction catalyst. It has a catalyst temperature control unit 23 for controlling the temperature.

Here, the oxidation catalyst is, for example, a metal catalyst composed of a metal having a large valence such as palladium (Pd) or platinum (Pt) or a metal oxide such as copper oxide. The oxidation catalyst oxidizes separated components, such as hydrocarbons and alcohol, to promote a reaction that generates carbon dioxide (CO ₂ ) and the like.

In addition, the reduction catalyst is a metal catalyst composed of, for example, nickel, ruthenium or rhodium. The reduction catalyst promotes a reaction that reduces the carbon dioxide (CO ₂ ) and generates, for example, methane (CH ₄ ).

The upstream end of the oxidation catalyst section 21 is connected to an introduction port P1 through which separated components are introduced, and the downstream end of the oxidation catalyst section 21 is connected to a lead-out port via the valve section 3. It is connected to (P2).

Specifically, as shown in FIGS. 2 and 3 , the upstream end of the oxidation catalyst part 21 and the introduction port P1 are connected by a first connection pipe H1, and the oxidation catalyst part 21 The downstream side end of and the valve part 3 are connected by the 2nd connection pipe H2. Here, the oxidation catalyst part 21 is configured to be detachable from the first connection pipe H1 and the second connection pipe H2, and the oxidation catalyst part 21 can be replaced. Moreover, the valve part 3 and the lead-out port P2 are connected by the 3rd lead-out pipe H3.

Further, an oxidizing gas introduction path 4 for introducing an oxidizing gas such as air for oxidizing separated components is connected to the first connecting pipe H1 upstream of the oxidation catalyst part 21 . In the gas introduction passage 4 for oxidation, a flow control device (MFC) 41 for controlling the flow rate of the gas for oxidation is provided.

The upstream end of the reduction catalyst unit 22 is connected to the oxidation catalyst unit 21 via the valve unit 3, and the downstream end of the reduction catalyst unit 22 connects the valve unit 3 to It is connected to the lead-out port P2 via a medium.

Specifically, as shown in FIGS. 2 and 3 , the upstream end of the reduction catalyst part 22 and the valve part 3 are connected by the fourth connecting pipe H4, and the reduction catalyst part 22 The downstream end of and the valve part 3 are connected by the 5th connection pipe H5. Here, the reduction catalyst part 22 is comprised so that attachment or detachment is possible with respect to the 4th connection pipe H4 and the 5th connection pipe H5, and the reduction catalyst part 22 can be exchanged.

In addition, a reducing gas such as hydrogen for reducing separated components is introduced into a pipe between the oxidation catalyst part 21 and the reduction catalyst part 22, here, into the second connecting pipe H2. An introduction path 5 is connected. In the reducing gas introduction passage 5, a flow control device (MFC) 51 for controlling the flow rate of the reducing gas is provided.

The temperature control unit 23 for the catalyst is provided around the oxidation catalyst unit 21 accommodating the oxidation catalyst and the reduction catalyst unit 22 accommodating the reduction catalyst, and the oxidation catalyst and the reduction catalyst are controlled at a desired catalyst temperature (for example, 400 ~ 600 ℃) to control the temperature.

Specifically, as shown in FIGS. 4 and 5 , the catalyst temperature control unit 23 includes a heating block 231 provided in contact with the oxidation catalyst unit 21 and the reduction catalyst unit 22, and the heating block. 231 has a heating unit 232, such as a cartridge heater, for example. This heating part 232 is controlled by the control part CTL. Specifically, the control unit CTL adjusts the current or voltage supplied from the power source E based on the detected temperature of the temperature sensor TS provided in the heating block 231, the regulator AD (eg The amount of heat generated by the heating section 232 is controlled by controlling, for example, a semiconductor control element such as a solid state relay (SSR). Thereby, the oxidation catalyst and the reduction catalyst are heated to a desired catalyst temperature by the heating unit 232 via the heating block 231 .

The valve part 3 is an oxidation line L1 in which the separated components flow only through the oxidation catalyst part 21 (see Fig. 3(a)), or the separated components are separated from the oxidation catalyst part 21 and the reduction catalyst part 22. ) to the redox line (L2) flowing through (see (b) of FIG. 3).

Specifically, as shown in FIGS. 2 and 3 , the valve unit 3 includes a first connection port 3p1 to which a second connection pipe H2 downstream of the oxidation catalyst unit 21 is connected, and a reduction catalyst. The 3rd connection to which the 2nd connection port 3p2 to which the 4th connection pipe H4 which is the upstream side of the part 22 is connected, and the 5th connection pipe H5 which is the downstream side of the reduction catalyst part 22 are connected. Communication between the port 3p3 and the fourth connection port 3p4 to which the third connection pipe H3 for deriving the separated components oxidized or reduced to the detector 12 is connected, and among the connection ports 3p1 to 3p4 It has a valve mechanism 31 that switches the connecting ports 3p1 to 3p4 to be used. In addition, the valve mechanism 31 may have a configuration in which the communicating connection ports 3p1 to 3p4 are manually switched, or a configuration in which the communicating connection ports 3p1 to 3p4 are automatically switched under control by a control unit. Okay.

Specifically, as shown in Fig. 3(a), the valve mechanism 31 passes through the oxidation catalyst part 21 by connecting the first connection port 3p1 and the fourth connection port 3p4. The separated components thus oxidized do not flow to the reduction catalyst part 22, but are guided to the third connection pipe H3 and lead out from the lead port P2 (oxidation path L1).

Moreover, as shown in Fig. 3(b), the valve mechanism 31 connects the first connection port 3p1 and the second connection port 3p2, and the third connection port 3p3 and the fourth connection port. By connecting (3p4), the separated components that have passed through the oxidation catalyst part 21 and oxidized flow to the reduction catalyst part 22, pass through the reduction catalyst part 22, and are reduced, and the third connecting pipe It is guided to (H3) and led out from the lead-out port P2 (oxidation-reduction pathway L2).

Moreover, the valve part 3 has the temperature control part 33 for valves for adjusting the temperature of the flow path block 32 provided with the internal flow path which communicates the valve mechanism 31 and each connection port 3p1-3p4. The valve temperature control unit 33 is provided around the valve mechanism 31 and the flow path block 32 to adjust the temperature of the valve mechanism 31 and the flow path block 32 to a desired temperature.

Specifically, the valve temperature control unit 33 is to control the temperature at a temperature (100° C.) at which no dew condensation occurs in the valve unit 3, and as shown in FIGS. 4 and 5, the valve mechanism 31 and the flow block It has a heating block 331 provided in contact with (32) and a heating unit 332 such as a cartridge heater incorporated in the heating block 331. The heating unit 332 controls the current or voltage to be supplied by a control unit (not shown) so that the valve mechanism 31 and the flow path block 32 can be operated via the heating block 331 as desired. warm to temperature In addition, the heating block 331 is provided with a temperature sensor (not shown) for controlling the temperature.

<Composition of Sharing Department>

And, the processing apparatus 100 for gas chromatography of this embodiment has a structure in which heat from the catalyst part 2 is hard to be transmitted to the valve part 3. Specifically, as shown in FIGS. 4 and 5 , the processing device 100 for gas chromatography is provided between the catalyst part 2 and the valve part 3, and the catalyst part 2 and the valve part 3 It is provided with a dividing part (6) which alleviates the heat transfer from the catalyst part (2) to the valve part (3) by partitioning between the parts.

The catalyst part 2 and the valve part 3 of the present embodiment have a configuration in which the catalyst part 2 is disposed below and the valve part 3 is disposed above in the vertical direction (vertical direction), The dividing portion 6 is disposed between the catalyst portion 2 and the valve portion 3 disposed above and below, for example, along the horizontal direction.

In this embodiment, a first cover body 7 covering the catalyst part 2 and a second cover body 8 covering the valve part 3 are further provided, and the first cover body 7 and each of the second cover body 8 has a dividing portion 6.

Specifically, as shown in Figs. 4, 5 and 6 (a), the circumference (front side and both left and right sides) except for the rear side of the catalyst part 2, and the catalyst part ( 2) to cover the upper surface side. Then, in this first cover body 7, the upper wall portion 7a covering the upper surface side of the catalyst portion 2 has a divider portion 6 disposed between the catalyst portion 2 and the valve portion 3. do. Also, as the material of the first cover body 7, a metal having a low thermal conductivity (or a high heat insulating property) such as stainless steel may be used, or a heat insulating material such as quartz, glass wool, or glass fiber may be used.

In addition, as shown in Fig. 4, Fig. 5 and Fig. 6 (b), the second cover body 8 includes the circumference (front side and both left and right sides) except for the rear side of the valve part 3, and the valve part ( 3) to cover the lower side. Then, in this second cover body 8, the lower wall portion 8a covering the lower surface side of the valve portion 3 has a dividing portion 6 disposed between the catalyst portion 2 and the valve portion 3. do. In addition, as the material of the second cover body 8, a metal having low thermal conductivity (or high heat insulating property) such as stainless steel may be used, or a heat insulating material such as quartz, glass wool, or glass fiber may be used.

And, in the dividing part 6 (lower wall part 7a) of the 1st cover body 7 and the dividing part 6 (upper wall part 8a) of the 2nd cover body 8, the catalyst part 2 and a straight slit S extending forward and backward, for example, to avoid pipes connecting the valve portion 3 (for example, the connecting pipes H2, H4, H5, etc. described above). In this embodiment, the slit S formed in the divided portion 6 of the first cover body 7 and the slit S formed in the divided portion 6 of the second cover body 8 have the same shape. There are two of each. A plurality of pipes can be inserted into each slit S. Here, the piping between the catalyst part 2 and the valve part 3 (connecting piping H2, H4, H5, etc. described above) is to be easily inserted into the straight slit S, when viewed from the front. Bending processing is performed so that it may become a row shape.

Moreover, the dividing part 6 of the 1st cover body 7 and the dividing part 6 of the 2nd cover body 8 are arrange|positioned at the predetermined distance. With this configuration, an air layer AL is formed between the divided portion 6 of the first cover body 7 and the divided portion 6 of the second cover body 8, thereby improving heat insulating properties. In addition, a heat insulating material such as quartz, glass wool, or glass fiber may be provided between the dividing portion 6 of the first cover body 7 and the dividing portion 6 of the second cover body 8. .

Further, in this embodiment, as shown in FIG. 5 , the catalyst part 2 and the valve part 3 are supported by the support body 9 on the back side. In addition, the support body 9 is fixed inside the housing C. In addition, heat insulating parts 91 and 92 are provided between at least the catalyst part 2 or the valve part 3 and the support body 9. In addition, it is conceivable that the heat insulating parts 91 and 92 be configured using a heat insulating material such as quartz or glass wool, for example. This makes it difficult for the heat from the catalyst part 2 to be transmitted to the valve part 3 via the support body 9.

In addition, to the support body 9, the 1st cover body 7 and the 2nd cover body 8 are screwed. Here, fixing slits 8S are formed in the left and right side wall portions of the second cover body 8 so that the screw can be slid and temporarily fixed without removing it from the support body 9 . Thereby, the attachment operation of the 2nd cover body 8 can be made easy.

<Effects of the present embodiment>

In the processing apparatus 100 for gas chromatography of the present embodiment configured as described above, a divider portion dividing the catalyst portion 2 and the valve portion 3 between the catalyst portion 2 and the valve portion 3 is provided. Since (6) is provided, the transfer of heat from the catalyst part 2 to the valve part 3 can be reduced. As a result, it is possible to prevent the valve portion 3 from becoming higher than the heat resistance temperature. For example, when it is necessary to oxidize or reduce a chlorine compound or the like, it is necessary to set the catalyst temperature to 600 ° C. in order to advance the reaction 100%. ) to the valve part 3 is alleviated, and the valve part 3 can be made below the heat resistance temperature (for example, 225 degreeC). In the case of a configuration in which the dividing portion 6 is not provided, when the catalyst temperature is 600° C., heat transfer from the catalyst portion 2 to the valve portion 3 causes the valve portion 3 to rise above the heat resistance temperature. gets heated

In addition, by providing the dividing portion 6, the temperature of the valve portion 3 can be adjusted to a constant temperature regardless of the heat from the catalyst portion 2, and the flow rate changes due to the temperature change of the valve portion 3. can prevent When components oxidized or reduced by the gas chromatography processing apparatus 100 are detected by the detector 12, such as an FID detector, noise reduction or drift reduction of the baseline can be realized, resulting in increased noise. It is possible to prevent a decrease in the minimum detection sensitivity due to

Further, in the housing C housing the catalyst part 2 and the valve part 3 in a state where the catalyst part 2 is disposed below and the valve part 3 is disposed above, the catalyst part 2 ) and the valve part 3, the heat from the catalyst part 2 prevents the top surface part C1 of the housing C from becoming high in temperature. can In addition, since the catalyst part 2 is covered with the first cover body 7, it is possible to prevent the side surface of the housing C from becoming hot. In this way, the safety of the processing device 100 can be improved.

<Other embodiments>

For example, in the above embodiment, the divider is provided on each of the first cover body and the second cover body, but the divider may be provided on either the first cover body or the second cover body. Further, the divided portion is divided into two in a plane, one divided portion is provided on the first cover body, and the other divided portion is provided on the second cover body, so that the first cover body and the second cover body form one divided portion. It's okay to configure.

In addition, a structure may be adopted in which a cut portion such as a divider plate is provided between the catalyst portion 2 and the valve portion 3 without providing the first cover body and the second cover body. In this case, it is conceivable to use a metal having low thermal conductivity (or high heat insulating property) such as stainless steel or a heat insulating material such as quartz, glass wool, or glass fiber as the material of the dividing portion.

Further, in the above embodiment, the first cover body and the second cover body are provided, but it is also possible to adopt a configuration in which either the first cover body or the second cover body is not provided.

In addition, it is good also as a structure provided separately from them other than the structure provided in the 1st cover body and the 2nd cover body, for the divider part.

In the above embodiment, the catalytic part and the valve part are disposed vertically, but the positional relationship between the catalytic part and the valve part is not limited to this. Okay.

In addition, the valve temperature control unit in the above embodiment has a configuration in which the valve unit is heated by heating, but may have a configuration including a cooling unit for adjusting the temperature of the valve unit to a constant temperature.

In addition, as long as it does not contradict the spirit of the present invention, you may perform variations or combinations of various embodiments.

100: processing device for gas chromatography 10: gas chromatography
11: column 21: oxidation catalyst unit
22: reduction catalyst unit 2: catalyst unit
L1: Oxidation pathway L2: Redox pathway
3: valve part 6: dividing part
7: 1st cover body 8: 2nd cover body
H1~H5 : Piping S : Slit
23: temperature control unit for catalyst 33: temperature control unit for valve
9: support 91: insulation

Claims (9)

A processing device for gas chromatography that oxidizes or oxidizes a gas component separated by a column of gas chromatography,
A catalyst unit having an oxidation catalyst and a reduction catalyst;
A valve unit for converting an oxidation path for guiding the gas component to the oxidation catalyst or an oxidation-reduction pathway for guiding the gas component to the oxidation catalyst and the reduction catalyst;
A gas chromatography processing device comprising a divider provided between the catalyst part and the valve part and dividing the catalyst part and the valve part. The method of claim 1,
A first cover body covering the catalyst unit;
A second cover body covering the valve portion is further provided,
A processing device for gas chromatography, wherein at least one of the first cover body and the second cover body has the dividing portion. The method of claim 2,
Each of the first cover body and the second cover body has the dividing portion,
The processing apparatus for gas chromatography, wherein the divided portion of the first cover body and the divided portion of the second cover body are disposed at a predetermined distance from each other. The method of claim 3,
A processing device for gas chromatography, wherein a heat insulating material is provided between the divided portion of the first cover body and the divided portion of the second cover body. According to any one of claims 1 to 4,
The catalyst part has a catalyst temperature control part, or the valve part has a valve temperature control part. The method of any one of claims 1 to 5,
The valve part is provided above the catalyst part. The processing apparatus for gas chromatography. The method of any one of claims 1 to 6,
Between the catalyst part and the valve part, a pipe constituting the oxidation path or the oxidation-reduction path is provided,
The processing apparatus for gas chromatography, wherein the divider portion is formed with a slit that avoids the pipe. The method of any one of claims 1 to 7,
Further comprising a support for supporting the catalyst part and the valve part,
A processing device for gas chromatography, wherein a heat insulating portion is provided between the catalyst portion and the support or between the valve portion and the support. As a heat countermeasure method of a processing apparatus for gas chromatography for oxidizing or oxidizing-reducing gas components separated by a column of gas chromatography,
A catalyst unit having an oxidation catalyst and a reduction catalyst, and a valve unit converting an oxidation path for guiding the gas component to the oxidation catalyst or an oxidation-reduction path for guiding the gas component to the oxidation catalyst and the reduction catalyst A heat protection method for a processing device for gas chromatography, wherein a dividing portion dividing between the catalyst portion and the valve portion is provided in between.

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