Multifunctional catalytic material evaluation system

Abstract

The utility model provides a multifunctional catalytic material evaluation system. The multifunctional catalytic material evaluation system at least comprises a gas raw material feeding branch, a liquid raw material feeding branch, a raw material mixer, a sulfide-resistant feeding branch, an inert gas feeding branch, a first three-way valve, a second three-way valve, a third three-way valve, a fourth three-way valve, a fifth three-way valve, a first heating furnace, a second heating furnace and a first reaction tube, a second reaction tube, a chromatographic instrument and a data processor. The multifunctional catalytic material evaluation system can support feeding of various raw materials such as gas, liquid, sulfides, inert gas and the like, and can be used for evaluating the catalytic material in a relatively wide temperature and pressure range by switching the three-way valve. Multiple functions of single evaluation of one catalyst sample, parallel evaluation of two catalyst samples, series evaluation of two catalyst samples, adsorption-regeneration cycle evaluation of two adsorbent samples and the like are realized.

Description

Technical Field

[0001] The utility model relates to a multifunctional catalytic material evaluation system, belonging to the technical field of catalytic material evaluation. Background Art

[0002] Catalytic material evaluation devices are commonly used in laboratories and are also essential equipment for investigating catalytic activity and stability. Evaluation devices are usually customized for studying a certain catalytic reaction, so the components of the device have certain limitations. For example, the evaluation device customized for gas phase reactions only has a gas feeding system but no liquid feeding system, the evaluation device customized for low temperature reactions can only withstand lower temperatures but not high temperatures, and ordinary stainless steel reaction tubes have strong adsorption on sulfide-containing raw materials, which affects the evaluation results. For example: CN 218412405 U provides a catalyst evaluation device, the feeding system only has gas raw material feeding equipment, no liquid raw material feeding equipment, no sulfide-containing gas raw material feeding equipment, and no inert gas feeding equipment. Although the reaction system is equipped with three reaction tubes that can be connected in series or in parallel, it is not possible to conduct adsorption-regeneration cycle evaluation experiments of adsorbents. At the same time, no quartz reaction tube is provided, and evaluation experiments of raw materials with strong adsorption such as sulfides cannot be conducted.

[0003] In order to develop a variety of catalytic materials, it is necessary to customize multiple sets of evaluation equipment or transform idle evaluation equipment to adapt them to the new catalytic reaction system, which results in problems such as high investment and large space occupation. Utility Model Content

[0004] In order to solve the above technical problems, the purpose of the utility model is to provide a multifunctional catalytic material evaluation system with multiple feed types, wide temperature resistance range, wide pressure resistance range, and resistance to sulfide adsorption.

[0005] In order to achieve the above object, the utility model provides a multifunctional catalytic material evaluation system, wherein the multifunctional catalytic material evaluation system at least comprises:

[0006] A gas raw material feed branch, a liquid raw material feed branch, a raw material mixer, a sulfide-resistant feed branch, an inert gas feed branch, a first three-way valve, a second three-way valve, a third three-way valve, a fourth three-way valve, a fifth three-way valve, a first heating furnace, a second heating furnace, a first reaction tube, a second reaction tube, a chromatograph, and a data processor;

[0007] in:

[0008] The gas raw material feed branch and the liquid raw material feed branch are respectively connected to the raw material mixer; the outlet of the raw material mixer is connected to the first port of the first three-way valve, the second port of the first three-way valve is connected to the first port of the second three-way valve, and the third port of the first three-way valve is connected to the inlet of the first reaction tube;

[0009] The sulfide-resistant feed branch is connected to the third port of the fourth three-way valve, and the first port and the second port of the fourth three-way valve are connected to the inlet of the first reaction tube and the inlet of the second reaction tube respectively;

[0010] The inert gas feed branch is sequentially connected to the third port of the fifth three-way valve, and the first port and the second port of the fifth three-way valve are respectively connected to the inlet of the first reaction tube and the inlet of the second reaction tube;

[0011] The second port of the second three-way valve is connected to the inlet of the second reaction tube, and the third port of the second three-way valve is connected to the third port of the third three-way valve;

[0012] The outlet of the first reaction tube is connected to the first port of the third three-way valve, the second port of the third three-way valve is connected to the chromatograph, and the outlet of the second reaction tube is connected to the chromatograph;

[0013] The first reaction tube is disposed in the first heating furnace, and the second reaction tube is disposed in the second heating furnace;

[0014] The chromatograph is connected to the data processor.

[0015] In the above multifunctional catalytic material evaluation system, preferably, the gas raw material feed branch includes at least a first high-pressure gas cylinder and a first mass flow meter, wherein the first high-pressure gas cylinder, the first mass flow meter and the inlet of the raw material mixer are connected in sequence, and are used to input gas raw materials into the raw material mixer. Preferably, a first ball valve (pressure regulating ball valve) is provided on the connecting pipeline between the first high-pressure gas cylinder and the first mass flow meter, and a second ball valve is provided on the connecting pipeline between the first mass flow meter and the inlet of the raw material mixer.

[0016] In the above multifunctional catalytic material evaluation system, preferably, the liquid raw material feed branch includes at least a liquid storage tank, a metering pump, and a preheater, wherein the liquid storage tank, the metering pump, the preheater and the inlet of the raw material mixer are connected in sequence for inputting liquid raw materials into the raw material mixer. Preferably, a third ball valve is provided on the connecting pipeline between the liquid storage tank and the metering pump, a fourth ball valve is provided on the connecting pipeline between the metering pump and the preheater, and the preheater is used to preheat the raw materials input into the raw material mixer.

[0017] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the sulfide-resistant feed branch includes at least a second high-pressure gas cylinder and a second mass flowmeter, wherein the second high-pressure gas cylinder, the second mass flowmeter and the third port of the fourth three-way valve are connected in sequence, and are used to input sulfide-containing gas raw materials into the first reaction tube and the second reaction tube. The second high-pressure gas cylinder is used to place sulfide-containing raw materials. Preferably, an eighth ball valve is provided on the connecting pipeline between the second high-pressure gas cylinder and the second mass flowmeter, a ninth ball valve is provided on the connecting pipeline between the second port of the fourth three-way valve and the second reaction tube, and a tenth ball valve is provided on the connecting pipeline between the first port of the fourth three-way valve and the first reaction tube. The above-mentioned connecting pipelines, sulfur-resistant mass flowmeters, etc. of the sulfide-resistant feed branch are passivated, which can effectively prevent sulfide adsorption.

[0018] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the inert gas feed branch includes at least a third high-pressure gas cylinder and a third mass flowmeter, wherein the third high-pressure gas cylinder, the third mass flowmeter and the third port of the fifth three-way valve are connected in sequence to input inert gas into the first reaction tube and the second reaction tube. The third high-pressure gas cylinder is used to place inert gas. Preferably, an eleventh ball valve (pressure regulating ball valve) is provided on the connecting pipeline between the third high-pressure gas cylinder and the third mass flowmeter, a twelfth ball valve is provided on the connecting pipeline between the second port of the fifth three-way valve and the second reaction tube, and a thirteenth ball valve is provided on the connecting pipeline between the first port of the fifth three-way valve and the inlet of the first reaction tube.

[0019] In the above multifunctional catalytic material evaluation system, preferably, the first reaction tube is a stainless steel reaction tube or a quartz reaction tube, and the second reaction tube is a stainless steel reaction tube or a quartz reaction tube. The stainless steel reaction tube is used for the evaluation reaction of raw materials with weak adsorption on the stainless steel material, and the quartz reaction tube is used for the evaluation experiment of raw materials with strong adsorption on the stainless steel material and low concentration, such as raw materials containing trace sulfides.

[0020] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the temperature resistance range of the stainless steel reaction tube is room temperature-1000°C, and the pressure resistance range is 0.1MPa-5MPa; the temperature resistance range of the quartz reaction tube is room temperature-1000°C, and the pressure resistance range is 0.1MPa-0.15MPa.

[0021] In the above multifunctional catalytic material evaluation system, preferably, a catalyst is provided in the stainless steel reaction tube.

[0022] In the above-mentioned multifunctional catalytic material evaluation system, preferably, an adsorbent is provided in the quartz reaction tube.

[0023] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the second mass flowmeter is a mass flowmeter that has been passivated, and the connecting pipeline between the second high-pressure gas cylinder, the second mass flowmeter, and the third port of the fourth three-way valve is a connecting pipeline that has been passivated.

[0024] In the above multifunctional catalytic material evaluation system, preferably, the connecting pipelines of the various components in the multifunctional catalytic material evaluation system are stainless steel pipelines.

[0025] In the above multifunctional catalytic material evaluation system, preferably, the heating range of the first heating furnace and the second heating furnace is 30-1000° C. The first heating furnace and the second heating furnace provide heat for the first reaction tube and the second reaction tube respectively.

[0026] In the above multifunctional catalytic material evaluation system, preferably, a fifth ball valve is provided on the connecting pipeline between the outlet of the raw material mixer and the first port of the first three-way valve.

[0027] In the above multifunctional catalytic material evaluation system, preferably, a sixth ball valve is provided on the connecting pipeline between the third port of the first three-way valve and the inlet of the first reaction tube.

[0028] In the above multifunctional catalytic material evaluation system, preferably, a seventh ball valve is provided on the connecting pipeline between the second port of the second three-way valve and the inlet of the second reaction tube.

[0029] In the above multifunctional catalytic material evaluation system, preferably, a fourteenth ball valve is provided on the connecting pipeline between the outlet of the first reaction tube and the first port of the third three-way valve.

[0030] In the above-mentioned multifunctional catalytic material evaluation system, preferably, a fifteenth ball valve is provided on the connecting pipeline between the outlet of the second reaction tube and the chromatograph.

[0031] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the chromatograph is a chromatographic analyzer commonly used in the art, such as a gas chromatograph, a gas chromatography-mass spectrometry chromatograph, and the like.

[0032] In the above-mentioned multifunctional catalytic material evaluation system, preferably, the data processor is a data processing device commonly used in the art, such as a computer installed with corresponding software.

[0033] The multifunctional catalytic material evaluation system provided by the utility model can support the feeding of various raw materials such as gas, liquid, sulfide, inert gas, etc. By switching the three-way valve, it can realize various functions such as single evaluation of one catalyst sample, parallel evaluation of two catalyst samples, series evaluation of two catalyst samples, adsorption-regeneration cycle evaluation of two adsorbent samples, etc. within a wide temperature and pressure range. It is a multifunctional catalytic material evaluation system with multiple feed types, wide temperature resistance range, wide pressure resistance range, and resistance to sulfide adsorption.

[0034] The beneficial effects brought by the technical solution of the utility model include:

[0035] 1. The catalytic material evaluation system provided by the utility model can realize the feeding of various raw materials such as gas raw materials, liquid raw materials, sulfide-containing gas raw materials, etc. by configuring gas raw material feeding branches, liquid raw material feeding branches, and sulfur-containing gas raw material feeding branches, so as to meet the evaluation needs of various catalytic materials such as chemical synthesis catalysts and desulfurizers.

[0036] 2. The catalytic material evaluation system provided by the utility model can avoid the influence of the experimental results on the adsorption of sulfide in the sulfur-containing compound experiment by the stainless steel pipeline and the stainless steel reaction tube by configuring the sulfur-resistant gas raw material feeding branch and the quartz reaction tube.

[0037] 3. The catalytic material evaluation system provided by the utility model is equipped with two sets of heating furnaces and reaction tubes, and five sets of three-way valves. Through valve switching, it can realize multiple evaluation functions such as single evaluation of a catalyst sample, simultaneous evaluation of two catalyst samples, series evaluation of two catalyst samples, adsorption-regeneration cycle evaluation of two adsorbent samples, etc., thereby improving the experimental efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 is a schematic structural diagram of a multifunctional catalytic material evaluation system of Example 1;

[0039] Figure 2 This is a schematic diagram of the multifunctional catalytic material evaluation system of Example 1 when used for evaluating a single catalyst sample;

[0040] Figure 3 Another schematic diagram of the multifunctional catalytic material evaluation system of Example 1 when used for evaluating a single catalyst sample;

[0041] Figure 4 This is a schematic diagram of the multifunctional catalytic material evaluation system of Example 1 when used for parallel evaluation of two catalyst samples;

[0042] Figure 5 This is a schematic diagram of the multifunctional catalytic material evaluation system of Example 1 when used for evaluating two catalyst samples in series;

[0043] Figure 6 This is a schematic diagram of the multifunctional catalytic material evaluation system of Example 1 when used for adsorption-regeneration cycle evaluation of two adsorbent samples;

[0044] Figure 7 Another schematic diagram of the multifunctional catalytic material evaluation system of Example 1 used for adsorption-regeneration cycle evaluation of two adsorbent samples.

[0045] Description of main figures:

[0046] 101-first high-pressure gas cylinder, 102-second high-pressure gas cylinder, 103-third high-pressure gas cylinder;

[0047] 201 - a first mass flow meter, 202 - a second mass flow meter, 203 - a third mass flow meter;

[0048] 3-liquid storage tank, 4-metering pump, 5-preheater, 6-raw material mixer;

[0049] 701-first ball valve, 702-second ball valve, 703-third ball valve, 704-fourth ball valve, 705-fifth ball valve, 706-sixth ball valve, 707-seventh ball valve, 708-eighth ball valve, 709-ninth ball valve, 710-tenth ball valve, 711-eleventh ball valve, 712-twelfth ball valve, 713-thirteenth ball valve, 714-fourteenth ball valve, 715-fifteenth ball valve;

[0050] 801-first three-way valve, 802-second three-way valve, 803-third three-way valve, 804-fourth three-way valve, 805-fifth three-way valve;

[0051] 901-first heating furnace, 902-second heating furnace, 1001-first reaction tube, 1002-second reaction tube;

[0052] 1101-first catalyst, 1102-second catalyst, 1103-first adsorbent, 1104-second adsorbent;

[0053] 12- chromatograph, 13- data processor. DETAILED DESCRIPTION

[0054] In order to have a clearer understanding of the technical features, purposes and beneficial effects of the utility model, the technical solution of the utility model is now described in detail below, but it should not be understood as limiting the applicable scope of the utility model.

[0055] Example 1

[0056] This embodiment provides a multifunctional catalytic material evaluation system, the structure of which is as follows: Figure 1 The multifunctional catalytic material evaluation system at least comprises:

[0057] A first high-pressure gas cylinder 101, a second high-pressure gas cylinder 102, and a third high-pressure gas cylinder 103;

[0058] A first mass flow meter 201, a second mass flow meter 202, and a third mass flow meter 203;

[0059] Liquid storage tank 3, metering pump 4, preheater 5, raw material mixer 6;

[0060] a first ball valve 701, a second ball valve 702, a third ball valve 703, a fourth ball valve 704, a fifth ball valve 705, a sixth ball valve 706, a seventh ball valve 707, an eighth ball valve 708, a ninth ball valve 709, a tenth ball valve 710, an eleventh ball valve 711, a twelfth ball valve 712, a thirteenth ball valve 713, a fourteenth ball valve 714, and a fifteenth ball valve 715;

[0061] A first three-way valve 801, a second three-way valve 802, a third three-way valve 803, a fourth three-way valve 804, and a fifth three-way valve 805;

[0062] A first heating furnace 901, a second heating furnace 902, a first reaction tube 1001, a second reaction tube 1002, a chromatograph 12, and a data processor 13;

[0063] in:

[0064] The first high-pressure gas cylinder 101 and the first mass flowmeter 201 form a gas raw material feeding branch, wherein the first high-pressure gas cylinder 101, the first mass flowmeter 201 and the inlet of the raw material mixer 6 are connected in sequence, a first ball valve 701 is provided on the connecting pipeline between the first high-pressure gas cylinder 101 and the first mass flowmeter 201, and a second ball valve 702 is provided on the connecting pipeline between the first mass flowmeter 201 and the inlet of the raw material mixer 6;

[0065] The liquid storage tank 3, the metering pump 4, and the preheater 5 constitute a liquid raw material feed branch, wherein the liquid storage tank 3, the metering pump 4, the preheater 5 and the inlet of the raw material mixer 6 are connected in sequence, a third ball valve 703 is provided on the connecting pipeline between the liquid storage tank 3 and the metering pump 4, a fourth ball valve 704 is provided on the connecting pipeline between the metering pump 4 and the preheater 5, and the preheater 5 is used to preheat the raw material input into the raw material mixer 6;

[0066] The outlet of the raw material mixer 6 is connected to the first port of the first three-way valve 801, the second port of the first three-way valve 801 is connected to the first port of the second three-way valve 802, and the third port of the first three-way valve 801 is connected to the inlet of the first reaction tube 1001; the second port of the second three-way valve 802 is connected to the inlet of the second reaction tube 1002, and the third port of the second three-way valve 802 is connected to the third port of the third three-way valve 803; a fifth ball valve 705 is provided on the connecting pipeline between the outlet of the raw material mixer 6 and the first port of the first three-way valve 801; a sixth ball valve 706 is provided on the connecting pipeline between the third port of the first three-way valve 801 and the inlet of the first reaction tube 1001, and a seventh ball valve 707 is provided on the connecting pipeline between the second port of the second three-way valve 802 and the inlet of the second reaction tube 1002;

[0067] The second high-pressure gas cylinder 102 and the second mass flow meter 202 form a sulfide-resistant feed branch, wherein the second high-pressure gas cylinder 102, the second mass flow meter 202 and the third port of the fourth three-way valve 804 are connected in sequence, and the first port and the second port of the fourth three-way valve 804 are connected to the inlet of the first reaction tube 1001 and the inlet of the second reaction tube 1002 respectively;

[0068] An eighth ball valve 708 is provided on the connecting pipeline between the second high-pressure gas cylinder 102 and the second mass flowmeter 202, a ninth ball valve 709 is provided on the connecting pipeline between the second port of the fourth three-way valve 804 and the second reaction tube 1002, and a tenth ball valve 710 is provided on the connecting pipeline between the first port of the fourth three-way valve 804 and the first reaction tube 1001; wherein, the second mass flowmeter 202 is a mass flowmeter that has been passivated, and the connecting pipeline between the second high-pressure gas cylinder 102, the second mass flowmeter 202, and the third port of the fourth three-way valve 804 is a connecting pipeline that has been passivated;

[0069] The third high-pressure gas cylinder 103 and the third mass flow meter 203 form an inert gas feed branch, wherein the third high-pressure gas cylinder 103 and the third mass flow meter 203 are sequentially connected to the third port of the fifth three-way valve 805, and the first port and the second port of the fifth three-way valve 805 are respectively connected to the inlet of the first reaction tube 1001 and the inlet of the second reaction tube 1002;

[0070] An eleventh ball valve 711 is provided on the connecting pipeline between the third high-pressure gas cylinder 103 and the third mass flowmeter 203, a twelfth ball valve 712 is provided on the connecting pipeline between the second port of the fifth three-way valve 805 and the second reaction tube 1002, and a thirteenth ball valve 713 is provided on the connecting pipeline between the first port of the fifth three-way valve 805 and the inlet of the first reaction tube 1001;

[0071] The outlet of the first reaction tube 1001 is connected to the first port of the third three-way valve 803, the second port of the third three-way valve 803 is connected to the chromatograph 12, and the outlet of the second reaction tube 1002 is connected to the chromatograph 12; a fourteenth ball valve 714 is provided on the connecting pipeline between the outlet of the first reaction tube 1001 and the first port of the third three-way valve 803; a fifteenth ball valve 715 is provided on the connecting pipeline between the outlet of the second reaction tube 1002 and the chromatograph 12;

[0072] The first reaction tube 1001 is disposed in the first heating furnace 901, and the second reaction tube 1002 is disposed in the second heating furnace 902; the heating ranges of the first heating furnace 901 and the second heating furnace 902 are 30-1000°C respectively;

[0073] The chromatograph 12 is connected to the data processor 13;

[0074] The connecting pipelines of the various components in the multifunctional catalytic material evaluation system of this embodiment are stainless steel pipelines.

[0075] When the multifunctional catalytic material evaluation system of Example 1 is used to evaluate the catalytic material, the following steps may be followed:

[0076] The gas raw material in the first high-pressure gas cylinder 101 enters the raw material mixer 6 after passing through the first ball valve (pressure regulating ball valve) 701, the first mass flowmeter 201, and the second ball valve (flowmeter outlet ball valve) 702. The liquid raw material in the liquid storage tank 3 enters the raw material mixer 6 after passing through the third ball valve (metering pump inlet ball valve) 703, the metering pump 4, the fourth ball valve (metering pump outlet ball valve) 704 and the preheater 5. After the various raw materials are fully mixed in the raw material mixer 6, they are divided into two paths through the first three-way valve 801. One path enters the first reaction tube 1001 through the sixth ball valve 706, reacts under the action of the first catalyst 1101, and the reaction product enters the chromatograph 12 and the data processor 13 through the second three-way valve 802 for analysis and data processing. The other path enters the second reaction tube 1002 through the third three-way valve 803 and the seventh ball valve 707, reacts under the action of the second catalyst 1102, and the reaction product enters the chromatograph 12 and the data processor 13 for analysis and data processing.

[0077] The sulfide-resistant feed branch is used for feeding the sulfide-containing gas raw material adsorption experiment. The sulfide in the second high-pressure gas cylinder 102 passes through the eighth ball valve (pressure regulating ball valve) 708, the second sulfur-resistant mass flow meter 202 and the fourth three-way valve 804, and then enters the first reaction tube 1001 and the second reaction tube 1002 through the tenth ball valve 710 and the ninth ball valve 709 respectively, and is adsorbed and desulfurized under the action of the adsorbent. After adsorption, the tail gas enters the chromatograph 12 and the data processor 13 for analysis and data processing;

[0078] The inert gas feed branch is mainly used for purging and regenerating the adsorbent. The inert gas in the third high-pressure gas cylinder 103 passes through the eleventh ball valve (pressure regulating ball valve) 711, the third mass flow meter 203 and the fifth three-way valve 805, and then enters the first reaction tube 1001 and the second reaction tube 1002 through the thirteenth ball valve 713 and the twelfth ball valve 712 for purging and regenerating the adsorbent. The regenerated tail gas enters the chromatograph 12 and the data processor 13 for analysis and data processing.

[0079] When used for evaluating the reaction of raw materials with weak adsorption on stainless steel materials, the first reaction tube 1001 and the second reaction tube 1002 are stainless steel reaction tubes; the temperature range of the stainless steel reaction tubes is room temperature-1000°C, and the pressure range is 0.1-5MPa;

[0080] When used for the evaluation reaction of raw materials with strong adsorption on stainless steel materials and low concentration (such as raw materials containing trace sulfides), the first reaction tube 1001 and the second reaction tube 1002 are quartz reaction tubes; the temperature range of the quartz reaction tube is room temperature-1000°C, and the pressure range is 0.1-0.15MPa;

[0081] The multifunctional catalytic material evaluation system of this embodiment is provided with five sets of three-way valves. By switching the directions of the first three-way valve 801, the second three-way valve 802 and the third three-way valve 803, the two reaction tubes (stainless steel reaction tubes) can be independent, parallel and series, thereby realizing functions such as single evaluation of one catalyst sample, parallel evaluation of two catalyst samples, and series evaluation of two catalyst samples; by switching the directions of the fourth three-way valve 804 and the fifth three-way valve 805, the connection and disconnection of the sulfide-resistant feed branch and the inert gas feed branch with the two reaction tubes (quartz reaction tubes) can be realized, thereby realizing the adsorption-regeneration cycle evaluation function of the two adsorbent samples.

[0082] When a single catalyst sample is evaluated using the multifunctional catalytic material evaluation system of Example 1, the evaluation can be performed in the following manner:

[0083] like Figure 2 and Figure 3As shown in the figure (wherein, the solid line indicates that the pipeline is connected, and the dotted line indicates that the pipeline is not connected, the same below), the gas raw material in the first high-pressure gas cylinder 101 enters the raw material mixer 6 after passing through the first ball valve (pressure regulating ball valve) 701, the first mass flowmeter 201, and the second ball valve (flowmeter outlet ball valve) 702, and the liquid raw material in the liquid storage tank 3 enters the raw material mixer 6 after passing through the third ball valve (metering pump inlet ball valve) 703, the metering pump 4, the fourth ball valve (metering pump outlet ball valve) 704 and the preheater 5. By controlling the direction of the first three-way valve 801, the mixed raw material in the raw material mixer 6 only enters the first reaction tube 1001 ( Figure 2 ) or the second reaction tube 1002 ( Figure 3 ) to react, and the reaction product enters the chromatograph 12 and the data processor 13 for analysis and data processing; wherein the first reaction tube 1001 and the second reaction tube 1002 are stainless steel reaction tubes respectively.

[0084] When the multifunctional catalytic material evaluation system of Example 1 is used to evaluate two catalyst samples in parallel, the evaluation can be performed in the following manner:

[0085] like Figure 4 As shown, the gas raw material in the first high-pressure gas cylinder 101 enters the raw material mixer 6 after passing through the first ball valve (pressure regulating ball valve) 701, the first mass flowmeter 201, and the second ball valve (flowmeter outlet ball valve) 702, and the liquid raw material in the liquid storage tank 3 enters the raw material mixer 6 after passing through the third ball valve (metering pump inlet ball valve) 703, the metering pump 4, the fourth ball valve (metering pump outlet ball valve) 704 and the preheater 5. By controlling the directions of the first three-way valve 801, the second three-way valve 802 and the third three-way valve 803, the mixed raw materials in the raw material mixer 6 simultaneously enter the first reaction tube 1001 and the second reaction tube 1002 for reaction, and the reaction products enter the chromatograph 12 and the data processor 13 for analysis and data processing respectively; wherein, the first reaction tube 1001 and the second reaction tube 1002 are stainless steel reaction tubes. With this connection method, the simultaneous evaluation of two catalyst samples developed for one reaction can be achieved.

[0086] When the multifunctional catalytic material evaluation system of Example 1 is used to evaluate two catalyst samples in series, the evaluation can be performed in the following manner:

[0087] like Figure 5As shown, the gas raw material in the first high-pressure gas cylinder 101 enters the raw material mixer 6 after passing through the first ball valve (pressure regulating ball valve) 701, the first mass flowmeter 201, and the second ball valve (flowmeter outlet ball valve) 702, and the liquid raw material in the liquid storage tank 3 enters the raw material mixer 6 after passing through the third ball valve (metering pump inlet ball valve) 703, the metering pump 4, the fourth ball valve (metering pump outlet ball valve) 704 and the preheater 5. By controlling the direction of the first three-way valve 801, it only enters the first reaction tube 1001, the first reaction tube 1001 is equipped with the first catalyst 1101 of the first step reaction, the intermediate product after the reaction enters the second reaction tube 1002, the second reaction tube 1002 is equipped with the second catalyst 1102 of the second step reaction, and the product after the reaction enters the chromatograph 12 and the data processor 13 for analysis and data processing; wherein, the first reaction tube 1001 and the second reaction tube 1002 are stainless steel reaction tubes. With this connection method, the series evaluation of two catalyst samples developed for a series reaction can be realized.

[0088] When the multifunctional catalytic material evaluation system of Example 1 is used to perform adsorption-regeneration cycle evaluation of two adsorbent samples, the evaluation can be performed in the following manner:

[0089] Wherein, the first reaction tube 1001 and the second reaction tube 1002 are both quartz reaction tubes, the first reaction tube 1001 is provided with a first adsorbent 1103, and the second reaction tube 1002 is provided with a second adsorbent 1104;

[0090] In the first step of the experiment, the first reaction tube 1001 is used for adsorption and the second reaction tube 1002 is used for regeneration:

[0091] like Figure 6 As shown, after the gas raw material in the second high-pressure gas cylinder 102 passes through the eighth ball valve (pressure regulating ball valve) 708 and the second mass flow meter 202, the direction of the fourth three-way valve 804 is controlled so that it only enters the first reaction tube 1001 for sulfide adsorption reaction, and the gas flow after the adsorption reaction enters the chromatograph 12 and the data processor 13 for analysis and data processing;

[0092] At the same time, after the inert gas in the third high-pressure gas cylinder 103 passes through the eleventh ball valve (pressure regulating ball valve) 7011 and the third mass flow meter 203, the direction of the fifth three-way valve 805 is controlled so that the inert gas only enters the second reaction tube 1002 for purging, so that the sulfide adsorbed by the second adsorbent 1104 is desorbed, and the gas flow after the desorption reaction enters the chromatograph 12 and the data processor 13 for analysis and data processing;

[0093] After the first adsorbent 1103 in the first reaction tube 1001 is saturated with adsorption and the second adsorbent 1104 in the second reaction tube 1002 is desorbed, switch to the next step of the experiment to perform desorption of the first adsorbent 1103 in the first reaction tube 1001 and adsorption of the second adsorbent 1104 in the second reaction tube 1002 .

[0094] In the second step of the experiment, the second reaction tube 1002 is subjected to adsorption and the first reaction tube 1001 is subjected to regeneration:

[0095] like Figure 7 As shown, after the gas raw material in the second high-pressure gas cylinder 102 passes through the eighth ball valve (pressure regulating ball valve) 708 and the second mass flow meter 202, the direction of the fourth three-way valve 804 is controlled so that it only enters the second reaction tube 1002 for sulfide adsorption reaction, and the gas flow after the adsorption reaction enters the chromatograph 12 and the data processor 13 for analysis and data processing;

[0096] At the same time, after the inert gas in the third high-pressure gas cylinder 103 passes through the eleventh ball valve (pressure regulating ball valve) 711 and the third mass flowmeter 203, the direction of the fifth three-way valve 805 is controlled so that the inert gas only enters the first reaction tube 1001 for purging, so that the sulfide adsorbed by the first adsorbent 1103 is desorbed, and the gas flow after the desorption reaction enters the chromatograph 12 and the data processor 13 for analysis and data processing;

[0097] After the second adsorbent 1104 in the second reaction tube 1002 is saturated with adsorption and the first adsorbent 1103 in the first reaction tube 1001 is desorbed, the experiment is switched to the first step.

[0098] By repeating the above two-step experiment continuously, the adsorption-regeneration cycle evaluation of the adsorbent material can be realized.

Claims

1. A multifunctional catalytic material evaluation system, characterized in that: The multifunctional catalytic material evaluation system at least comprises: A gas raw material feed branch, a liquid raw material feed branch, a raw material mixer (6), a sulfide-resistant feed branch, an inert gas feed branch, a first three-way valve (801), a second three-way valve (802), a third three-way valve (803), a fourth three-way valve (804), a fifth three-way valve (805), a first heating furnace (901), a second heating furnace (902), a first reaction tube (1001), a second reaction tube (1002), a chromatograph (12), and a data processor (13); in: The gas raw material feed branch and the liquid raw material feed branch are respectively connected to the raw material mixer (6); the outlet of the raw material mixer (6) is connected to the first port of the first three-way valve (801), the second port of the first three-way valve (801) is connected to the first port of the second three-way valve (802), and the third port of the first three-way valve (801) is connected to the inlet of the first reaction tube (1001); The sulfide-resistant feed branch is connected to the third port of the fourth three-way valve (804), and the first port and the second port of the fourth three-way valve (804) are respectively connected to the inlet of the first reaction tube (1001) and the inlet of the second reaction tube (1002); The inert gas feed branch is sequentially connected to the third port of the fifth three-way valve (805), and the first port and the second port of the fifth three-way valve (805) are respectively connected to the inlet of the first reaction tube (1001) and the inlet of the second reaction tube (1002); The second port of the second three-way valve (802) is connected to the inlet of the second reaction tube (1002), and the third port of the second three-way valve (802) is connected to the third port of the third three-way valve (803); The outlet of the first reaction tube (1001) is connected to the first port of the third three-way valve (803), the second port of the third three-way valve (803) is connected to the chromatograph (12), and the outlet of the second reaction tube (1002) is connected to the chromatograph (12); The first reaction tube (1001) is disposed in the first heating furnace (901), and the second reaction tube (1002) is disposed in the second heating furnace (902); The chromatograph (12) is connected to the data processor (13).

2. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The gas raw material feed branch comprises at least a first high-pressure gas cylinder (101) and a first mass flow meter (201), wherein the first high-pressure gas cylinder (101), the first mass flow meter (201) and the inlet of the raw material mixer (6) are connected in sequence.

3. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The liquid raw material feed branch comprises at least a liquid storage tank (3), a metering pump (4), and a preheater (5), wherein the liquid storage tank (3), the metering pump (4), the preheater (5) and the inlet of the raw material mixer (6) are connected in sequence.

4. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The sulfide-resistant feed branch at least includes a second high-pressure gas cylinder (102) and a second mass flow meter (202), wherein the second high-pressure gas cylinder (102), the second mass flow meter (202) and the third port of the fourth three-way valve (804) are connected in sequence.

5. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The inert gas feed branch at least comprises a third high-pressure gas cylinder (103) and a third mass flow meter (203), wherein the third high-pressure gas cylinder (103), the third mass flow meter (203) and the third port of the fifth three-way valve (805) are connected in sequence.

6. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The first reaction tube (1001) is a stainless steel reaction tube or a quartz reaction tube; The second reaction tube (1002) is a stainless steel reaction tube or a quartz reaction tube.

7. The multifunctional catalytic material evaluation system according to claim 6, characterized in that: The temperature resistance range of the stainless steel reaction tube is room temperature-1000°C, and the pressure resistance range is 0.1MPa-5MPa; The quartz reaction tube has a temperature resistance range of room temperature to 1000° C. and a pressure resistance range of 0.1 MPa to 0.15 MPa.

8. The multifunctional catalytic material evaluation system according to claim 6, characterized in that: The stainless steel reaction tube is provided with a catalyst; An adsorbent is arranged in the quartz reaction tube.

9. The multifunctional catalytic material evaluation system according to claim 4, characterized in that: The second mass flow meter (202) is a mass flow meter that has been passivated, and the connecting pipeline between the second high-pressure gas cylinder (102), the second mass flow meter (202), and the third port of the fourth three-way valve (804) is a connecting pipeline that has been passivated.

10. The multifunctional catalytic material evaluation system according to claim 1, characterized in that: The heating ranges of the first heating furnace (901) and the second heating furnace (902) are 30-1000°C respectively.

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