KR20110112040A - Gas mixing and heating device and apparatus and method for performance evaluation of catalysts using the same - Google Patents

Abstract

The present invention relates to a gas mixture heater and a catalytic performance evaluation apparatus using the same, comprising: a housing having a gas inlet port through which a plurality of gases are introduced and a water inlet port through which water is introduced, and a discharge port for discharging the gases and water to the outside; And an inner partition wall partitioning an inner space of the housing to form a mixing part for mixing the gases and the water and a heating part for heating the gases and water mixed in the mixing part. It is provided. According to the present invention, the overall structure of the catalytic performance evaluation apparatus because the process of mixing the gas and water, and the process of heating the mixed gas and water to produce a mixed gas containing water vapor is made in the gas mixture heater Can be simplified and miniaturized.

Description

Gas mixing and heating device and apparatus and method for performance evaluation of catalysts using the same}

The present invention relates to a gas mixed heater and a catalytic performance evaluation apparatus using the same, and more particularly, to a gas mixed heater for mixing gases and water, and heating the mixed gases and water, and a catalytic performance evaluation apparatus using the same. It is about.

A catalyst is a substance other than a reactant in a chemical reaction, which is not consumed during the reaction and only increases the reaction rate.

These catalysts have been utilized throughout vehicle exhaust gas purification systems, fuel cell water quality, and various chemical catalytic reaction experiments.

Here, hydrophobic refers to a process of extracting pure hydrogen required for electricity generation by rearranging the molecular structure of hydrocarbons such as methane.

The effectiveness of a catalyst for a particular reaction can vary greatly depending on its type, manufacturing method, carrier's application, and operating conditions.Differences in catalyst performance can significantly affect the productivity of chemical processes, the amount of waste generated, and the energy costs of separation processes. Get mad.

Therefore, it is very important to develop an optimum reaction catalyst for a specific reaction, and catalytic performance devices are being used to evaluate components and compositions of reactants in catalyst development and research.

A technique related to a catalytic performance device is known by Korean Patent No. 0731149 (Invention name: Catalyst Performance Evaluation Device).

The catalytic performance device includes a plurality of gas supply pipes for supplying different gases, a mixer for mixing a plurality of gases, an evaporator for heating water supplied from a mixed gas and a water supply pipe mixed in the mixer, and an evaporator. And a catalytic reactor supplied with the mixed gas and water vapor.

However, the catalytic performance device has a problem in that the structure is complicated and the overall volume is increased because the mixer and the evaporator are provided independently.

In addition, since only the gases are mixed in the mixer, it is difficult to implement a smooth catalytic reaction because the gases and the steam supplied to the catalytic reactor are not uniformly mixed.

Therefore, the present invention was devised to solve the problems posed in the related art, and an object of the present invention is to simplify the structure, achieve miniaturization, and a gas mixing heater capable of uniformly mixing gases and water vapor and the same. It is to provide a catalytic performance evaluation apparatus used.

Gas mixture heater according to the present invention for achieving the above object, a housing having a gas inlet and a water inlet through which a plurality of gas is introduced, and the outlet for discharging the gases and water to the outside; And an inner partition wall partitioning an inner space of the housing to form a mixing part for mixing the gases and the water and a heating part for heating the gases and water mixed in the mixing part. A communication hole is formed in the partition wall for communicating the mixing part and the heating part.

And a mixing tube part extending from the inner partition to the mixing part and having a gas inlet hole through which gas is introduced and a water inlet hole through which water is introduced.

In addition, the mixing unit is provided with a guide block for forming a guide flow path connecting the water inlet and the water inlet.

A heater for heating the gases and water introduced into the heating unit is installed outside the housing.

In addition, the gas inlet and the water inlet is formed on the mixing portion side, the outlet is formed on the heating side.

The inner partition wall further includes a venturi portion having a diameter that is larger than the communication hole toward the heating portion, such that the gases and water passing through the communication hole are diffused through the venturi portion.

Catalytic performance evaluation device according to the invention the gas mixture heater; A catalytic reactor in which a mixed gas and steam generated in the gas mixed heater and a catalytic reaction are performed between the catalysts; And an analyzer for analyzing the mixed gas passing through the catalytic reactor. It includes.

The catalytic performance evaluation method according to the present invention comprises a mixing and heating step of mixing and heating the gases and water to produce a mixed gas containing water vapor; A catalytic reaction step of performing a catalytic reaction between the mixed gas and the catalyst; And analyzing the mixed gas in which the catalytic reaction is performed in the catalytic reaction step. It includes.

According to the above-described gas mixture heater according to the present invention, a catalyst performance evaluation apparatus and a catalyst performance evaluation method using the same, the following effects are obtained.

First, according to the present invention, since the process of mixing the gas and water, and the process of heating the mixed gas and water to produce a mixed gas containing water vapor is performed in the gas mixer heater of the catalytic performance evaluation apparatus The overall structure can be simplified and miniaturized.

Second, according to the present invention, since the gas and water mixed in the mixing unit is mixed again while being injected into the heating unit, there is an advantage that can generate a mixed gas uniformly mixed.

Third, according to the present invention, there is further provided with a mixing tube portion provided in the mixing portion, the gas and water are mixed in the mixing tube portion, there is an advantage that can be more uniformly mixed gas and water.

Fourth, according to the present invention, the gas and water passing through the communication hole of the inner partition wall is diffused through the venturi portion has the advantage of maximizing the mixing effect of the gas and water, or a mixed gas containing water vapor. .

1 is a block diagram showing the overall configuration of a catalytic performance evaluation apparatus according to the present invention.
Figure 2 is a cross-sectional view showing a gas mixture heater applied to the catalytic performance evaluation apparatus according to the present invention.
Figure 3 is a plan view showing a gas mixture heater applied to the catalytic performance evaluation apparatus according to the present invention.
4 is a flowchart illustrating a catalyst performance evaluation method according to the present invention.

Hereinafter, a preferred embodiment of the gas mixture heater according to the present invention, a catalyst performance evaluation apparatus using the same, and a catalyst performance evaluation method will be described in more detail with reference to the accompanying drawings.

The invention is not limited to the embodiments described herein but may be embodied in other forms. Rather, the embodiments disclosed herein are provided so that the disclosure can be thorough and complete, and will fully convey the scope of the invention to those skilled in the art.

1 is a block diagram showing a catalyst performance evaluation apparatus according to the present invention.

Referring to FIG. 1, the catalytic performance evaluation apparatus according to the present invention includes a plurality of gas supply pipes 111, 112, and 113, a water supply pipe 114, a catalytic reactor 115, a condenser 116, and a separator 117. And a buffer tank 118, an analyzer 119, a gas mixing heater 200, and a controller.

The gas supply pipes 111, 112, and 113 are for supplying different gases, and supply hydrogen, carbon monoxide, carbon dioxide, and the like.

Each gas supply pipe (111, 112, 113) may be provided with a flow regulator (111a, 112a, 113a) and a bidirectional solenoid valve (111b, 112b, 113b) for adjusting the flow rate of the gas.

The water supply pipe 114 is for supplying the water stored in the water tank 114a to the gas mixing heater 200. The water supply pipe 114 may include a pump 114b and a bidirectional solenoid valve 114c.

The gas mixed heater 200 generates a mixed gas including water vapor by mixing and heating the gas flowing through the plurality of gas supply pipes 111, 112, and 113 and the water flowing through the water supply pipe 114.

The catalytic reactor 115 is to achieve a catalytic reaction between the mixed gas generated in the gas mixture heater 200 and the catalyst, and includes a tube filled with the catalyst 115a and a heater 115b surrounding the tube 115a. Can be.

The condenser 116 condenses the mixed gas passed through the catalytic reactor 115, the separator 117 separates and discharges the water present in the mixed gas, and the buffer tank 118 static pressure increases the flow rate of the mixed gas. To perform the function.

A bidirectional solenoid valve 120 may be installed between the separator 117 and the buffer tank 118 to adjust the flow of the mixed gas.

The analyzer 119 evaluates the performance of the catalyst by analyzing the components and composition ratios of the mixed gas passed through the catalytic reactor 115.

In this case, the analyzer 119 may evaluate the performance of the catalyst by comparing the mixed gas passed through the catalytic reactor 115 with the mixed gas not passed through the catalytic reactor 115.

The controller checks and controls the state of the analyzer 119 and each component in real time.

2 is a cross-sectional view showing a gas mixing heater according to the present invention, Figure 3 is a plan view showing a gas mixing heater according to the present invention.

Referring to FIGS. 2 and 3, the gas mixing heater 200 according to the present invention includes a housing 210 forming an exterior and an internal partition 220 partitioning an inner space of the housing.

The housing 210 has a gas inlet 211, 212, 213 into which a plurality of gases are introduced, a water inlet 214 through which water is introduced, and an outlet 215 for discharging the gas and the mixed gas generated by heating the water to the outside. It is provided.

The inner partition wall 220 partitions the inner space of the housing 210, and a mixing unit M for mixing gases and water, and a heating unit for heating the gases and water mixed in the mixing unit M. (H) is formed.

A communication hole 221 is formed in the inner partition wall 220 to communicate the mixing part M and the heating part H, and the gases and water mixed in the mixing part M through the communication hole 221. Is able to move to the heating portion (H).

Here, the gas inlets 211, 212, 213 and the water inlet 214 are formed on the mixing part M side, and the outlet 215 is formed on the heating part H side.

In addition, the gas mixing heater 200 may further include a mixing tube part 230 provided inside the mixing part M.

The mixing pipe part 230 is formed to extend from the inner partition 220 into the mixing part M, and includes a plurality of gas inlet holes 231 through which gas is introduced, and a water inlet hole 232 through which water is introduced. Equipped.

The mixing tube part 230 is preferably formed so that one end of the communication hole 221 side is opened, and the other end is blocked, and the gas and water are mixed in the mixing tube part 230.

In addition, the mixing unit (M) may be formed with a guide block 240 for forming a guide flow path 241 connecting the water inlet 214 and the water inlet hole 232, which is introduced into the water inlet 214 The water may be transferred into the mixing pipe part 230 through the guide passage 241 and the water inlet hole 232.

In the heating unit H, gas and water are heated, and for this purpose, a heater 250 for heating the gases and water is installed outside the housing 210 on the heating unit H side.

Gases and water flowing into the heating unit H are more uniformly mixed in the heating unit H by the pressure drop after passing through the communication hole 221 of the inner partition wall 220, by the heater 240. It is heated to a mixed gas containing water vapor.

Gas mixture heater 200 according to the present invention is provided with one gas inlet 211 in accordance with an embodiment to allow a plurality of gas to enter the one gas inlet 211, or a plurality of gas inlet (211,212,213) The gas supply pipes 111, 112, and 113 may be directly connected to the gas inlets 211, 212, and 213.

In addition, the inner partition wall 220 may further include a venturi part 222 whose diameter increases from the communication hole 221 toward the heating part H side, and gases and water passing through the communication hole 221 are venturi. The diffusion may be performed through the unit 222.

In this case, the venturi part 222, that is, the surface of the heating part M side of the inner partition wall 220 may be formed to form an angle of 60 ° with the central axis of the communication hole 221, which may be formed through the communication hole 221. The gas and water injected into the heating unit (H) is to be injected at an angle of 120 kPa to maximize the mixing effect of the gas and water, or a mixed gas containing water vapor.

Next, a catalyst performance evaluation method according to the present invention will be described with reference to FIG. 4.

As shown in Figure 4, the catalytic performance evaluation method according to the present invention is the inlet step (S410), mixing and heating step (S420), catalytic reaction step (S430), condensation step (S440), water separation It comprises a step (S450) and the analysis step (S460).

First, in the inflow step (S410), gases and water are introduced into the gas mixture heater 200 through the gas supply pipes 111, 112, and 113 and the water supply pipe 114.

In the mixing and heating step (S420), the gases and water in the gas mixing heater 200 are mixed and heated to change into a mixed gas including water vapor.

Thereafter, in the catalytic reaction step (S430), the catalytic reaction is performed between the mixed gas and the catalyst by the catalytic reactor 115.

Subsequently, in the condensation step S440, the mixed gas is condensed through the condenser 116, and the water present in the mixed gas is removed in the water separation step S450.

And the analysis step (S460) by analyzing the component and composition ratio of the mixed gas by the analyzer 119 to evaluate the catalyst performance.

As described above, since the catalyst performance evaluation method according to the present invention simultaneously mixes and heats gas and water in the mixing and heating step (S420), the catalyst performance evaluation method is faster than the conventional catalyst performance evaluation method by dividing the mixing step and the heating step. It is possible to easily evaluate the performance of the catalyst.

Embodiments have been disclosed in the drawings and the specification as above. Although specific terms have been used herein, they are used only for the purpose of describing the present invention and are not used to limit the scope of the present invention as defined in the meaning or claims. Therefore, those skilled in the art will understand that various modifications and equivalent other embodiments are possible from this. Therefore, the true technical protection scope of the present invention will be defined by the technical spirit of the appended claims.

111,112,113: gas inlet 114: water inlet
115: catalytic reactor 116: condenser
117: separator 118: buffer tank
119 analyzer 200 gas mixture heater
210: housing 220: internal partition
230: mixing pipe portion 240: guide block
250: heater M: mixing part
H: heating part

Claims (8)

A housing having a gas inlet through which a plurality of gases are introduced and a water inlet through which water is introduced, and a discharge port for discharging the gases and water to the outside; And
An inner partition defining a inner space of the housing to form a mixing part for mixing the gases and the water and a heating part for heating the gases and water mixed in the mixing part,
And a communication hole formed in the inner partition to communicate the mixing part and the heating part. The method of claim 1,
And a mixing tube part extending from the inner partition to the mixing part and having a gas inlet hole through which gas is introduced and a water inlet hole through which water is introduced. The method of claim 2,
The mixing unit is a gas mixing heater is provided with a guide block for forming a guide flow path connecting the water inlet and the water inlet. The method of claim 1,
And a heater for heating the gases and water introduced into the heating unit outside the housing. The method of claim 1,
The gas inlet and the water inlet is formed on the mixing portion side, the outlet is a gas mixing heater is formed on the heating side. The method of claim 1,
The inner partition wall further comprises a venturi portion having a diameter larger than the communication hole toward the heating side, the gas and the heater to allow the gas and water passing through the communication hole to diffuse through the venturi portion. A gas mixed heater according to any one of claims 1 to 6;
A catalytic reactor in which a mixed gas and steam generated in the gas mixed heater and a catalytic reaction are performed between the catalysts; And
An analyzer for analyzing the mixed gas passing through the catalytic reactor; Catalytic performance evaluation device comprising a. A mixing and heating step of mixing and heating the gases and water to produce a mixed gas comprising water vapor;
A catalytic reaction step of performing a catalytic reaction between the mixed gas and the catalyst; And
An analysis step of analyzing a mixed gas in which the catalytic reaction is performed in the catalytic reaction step; Catalyst performance evaluation method comprising a.

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