CN207163991U - A kind of methanation catalyst evaluating apparatus - Google Patents
A kind of methanation catalyst evaluating apparatus Download PDFInfo
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- CN207163991U CN207163991U CN201721136950.2U CN201721136950U CN207163991U CN 207163991 U CN207163991 U CN 207163991U CN 201721136950 U CN201721136950 U CN 201721136950U CN 207163991 U CN207163991 U CN 207163991U
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Abstract
A kind of methanation catalyst evaluating apparatus, it includes multiple raw material gas cylinders and at least one dioxide bottle, pressure regulator valve, flowmeter, gas buffer tank, gas mixing tank, reaction unit, wherein, the outlet conduit of multiple raw material gas cylinders and at least one dioxide bottle is each via a pressure regulator valve connection flow gauge, the outlet conduit of each flowmeter is all connected to the import of gas mixing tank, the outlet conduit coupled reaction device of gas mixing tank, gas buffer tank is set on pipeline between the pressure regulator valve and flowmeter of the outlet connection of at least one dioxide bottle, the gas buffer tank sets electric heating cover.The instability of flow that the utility model solves the problems, such as carbon dioxide to be caused to obtain by flow measurement under the conditions of room temperature high-pressure (5.5MPa) in gas-liquid mixture phase fluctuates larger, ensures that carbon dioxide is in the pipeline of gaseous state by flowmeter and afterwards under the conditions of high pressure (5.5MPa).
Description
Technical field
It the utility model is related to a kind of methanation catalyst evaluating apparatus.
Background technology
Methanation catalyst evaluating apparatus is to be used to laboratory stage carry out catalyst activity, the spy such as life-span and selectivity
The investigation of property.High performance catalyst is filtered out by simulating industrial condition, support is provided for the industrialization of catalyst.
Methanation catalyst evaluating apparatus simulation mixed gas is into the flow of reactor at present：Each road unstripped gas is from gas
Bottle (1,2,3) flows out through the pressure that pressure regulator valve (V-1, V-2, V-3) is adjusted to experiment condition needs, passes through special gas constitution afterwards
Amount flowmeter (FM1, FM2, FM3) enters gas mixing tank (6), and reactor (7) is passed through after each road unstripped gas is well mixed, each
Linked (referring to Fig. 2) by stainless steel tube between device.
The conventional unstripped gas of methanation catalyst has nitrogen, hydrogen, methane, carbon monoxide and carbon dioxide.Because each road
Unstripped gas is room temperature (283K-303K, i.e., 10-30 DEG C) before gas mixing tank is entered, can be with by carbon dioxide phase diagram (Fig. 1)
Find out that carbon dioxide is near gas-liquid two-phase balanced line under conditions of room temperature, pressure 5-10MPa.
Methane synthesizing catalyst evaluation experimental pressure condition is mostly 3MPa or so at present, if doing catalyst high pressure
(5MPa) evaluation experimental then needs about 5.5MPa carbon dioxide steady air flow, and (full under the conditions of 15 DEG C of room temperature, 5.5MPa
And state), carbon dioxide saturated gas is highly prone to temperature fluctuations affect, may be in gas-liquid mixture phase.The dioxy of the state
Change carbon by flowmeter can because of liquid caused by measure flow inaccurate for flowmeter, even liquid can be caused temporary transient when serious
Flowmeter is blocked, flow meter specially interior fittings easily by transient fatigue or damage, can not be continually and steadily fed, specifically
Show as CO2Flowmeter registration wide fluctuations.
Utility model content
In view of the above problems, the utility model provides a kind of improved methanation catalyst evaluating apparatus, and the device solves
The problem of carbon dioxide amount is unstable under the conditions of catalyst test apparatus mesohigh.
Methanation catalyst evaluating apparatus of the present utility model includes multiple raw material gas cylinders and at least one carbon dioxide gas
Bottle, pressure regulator valve, flowmeter, gas buffer tank, gas mixing tank, reaction unit,
Wherein, the outlet conduit of plurality of raw material gas cylinder and at least one dioxide bottle is each via a pressure regulation
Valve connection flow gauge, the outlet conduit of each flowmeter are all connected to the import of gas mixing tank, the outlet of gas mixing tank
Road coupled reaction device,
Gas is set on pipeline between the pressure regulator valve and flowmeter of the outlet connection of wherein at least one dioxide bottle
Body surge tank, the gas buffer tank set electric heating cover.
Further, electric heating cover internal resistance is connected with temperature of the control electric heating cover to the heating-up temperature of gas buffer tank
Control instrument.
Preferably, the reaction unit includes at least one methanator and connected with methanator outlet conduit
The gas chromatography system connect.
Further, the electric heating cover is flexible electric heating cover.
Further, temperature controller is the temperature that electric heating cover can be controlled to be 15-65 DEG C to the heating-up temperature of gas buffer tank
Control instrument.
In a further preferred embodiment, methanation catalyst evaluating apparatus of the present utility model includes multiple raw materials
Gas cylinder and at least one dioxide bottle, pressure regulator valve, flowmeter, gas buffer tank, gas mixing tank, one section of fine de-sulfur reaction
Device, heat exchanger, two sections of methanators, gas chromatography systems, plurality of raw material gas cylinder and at least one carbon dioxide gas
The outlet conduit of bottle is each all connected to gas mixing via a pressure regulator valve connection flow gauge, the outlet conduit of each flowmeter
The import of tank, the outlet conduit of gas mixing tank are divided into two branch roads, and a branch road connects the import of one section of fine de-sulfur reactor,
Another branch road connects gas chromatography system, and the outlet of one section of fine de-sulfur reactor connects two sections of methanation reactions via heat exchanger
The import of device, the outlet conduit of two sections of methanators are divided into two branch roads, and a branch road connects gas chromatography system, another
Individual branch road connects exhausting pipeline, the pressure regulator valve and flowmeter of the outlet connection of wherein at least one dioxide bottle via valve
Between pipeline on gas buffer tank is set, the gas buffer tank sets electric heating cover, and electric heating cover internal resistance is connected with
Control temperature controller of the electric heating cover to the heating-up temperature of gas buffer tank.
Further, the electric heating cover is flexible electric heating cover.
Further, temperature controller is the temperature that electric heating cover can be controlled to be 15-65 DEG C to the heating-up temperature of gas buffer tank
Control instrument.
The utility model is further provided using above-mentioned methanation catalyst evaluating apparatus evaluation methanation catalyst
Method, this method include：
Gas for multiple raw material gas cylinder sums of methanation enters gas mixing tank through pressure regulator valve, flowmeter, and at least
The carbon dioxide of one dioxide bottle successively passes through pressure regulator valve and gas surge tank, and the carbon dioxide is through gas
After the electric heating cover that body surge tank is set is heated to 30-50 DEG C, flowmeter is entered back into, it is upper with coming from subsequently into gas mixing tank
The gas mixing of multiple raw material gas cylinders is stated, the admixture of gas come out from gas mixing tank is divided into two-way, all the way into gas phase color
Spectra system carries out Analysis of Gaseous Components from Plasma, and another way enters one section of fine de-sulfur reactor and carries out one section of fine de-sulfur reaction, and one section of essence takes off
Reaction product after reaction of Salmon-Saxl is exchanged heat into heat exchanger, and two sections of methanation reactions are carried out subsequently into two sections of methanators,
Reaction product after two sections of methanation reactions is divided into two-way, carries out Analysis of Gaseous Components from Plasma into gas chromatography system all the way, another
Road is vented via valve.
The advantages of the utility model：
It is in gas-liquid mixture phase under the conditions of room temperature high-pressure (5.5MPa) that the utility model, which can avoid carbon dioxide,
The instability of flow for causing to obtain by flow measurement fluctuates the problem of larger, ensures in high pressure (5.5MPa) condition carbon dioxide
Gas is in the pipeline of gaseous state by flowmeter and afterwards, accurate measurement when carbon dioxide passes through flowmeter, will not occur to block stream
The situation of gauge.
Brief description of the drawings
Fig. 1 is carbon dioxide gas phasor.
Fig. 2 is the schematic diagram of the methanation catalyst evaluating apparatus of an embodiment of the present utility model.
Fig. 3 is the schematic diagram of the methanation catalyst evaluating apparatus of another embodiment of the present utility model.
Fig. 4 is gas buffer jar structure schematic diagram.
Embodiment
The utility model is further illustrated below in conjunction with accompanying drawing.
As shown in Fig. 2 methanation catalyst evaluating apparatus of the present utility model is including multiple raw material gas cylinders 1,2,3 and at least
One dioxide bottle 4, pressure regulator valve V-1, V-2, V-3, V-4, flowmeter FM1, FM2, FM3, FM4, gas buffer tank 5, gas
Body blending tank 6, reaction unit 20,
Wherein, the outlet conduit of multiple raw material gas cylinders 1,2,3 and at least one dioxide bottle 4 is each via a tune
Pressure valve (V-1, V-2, V-3 or V-4) connection flow gauge FM1, FM2, FM3, FM4, each flowmeter FM1, FM2, FM3, FM4's
Outlet conduit is all connected to the import of gas mixing tank 6, the outlet conduit coupled reaction device 20 of gas mixing tank 6,
Set on pipeline between the pressure regulator valve V-4 and flowmeter FM4 of the outlet connection of at least one dioxide bottle 4
Gas buffer tank 5, the gas buffer tank 5 set electric heating cover 12.
The internal resistance of electric heating cover 12 is preferably connected with temperature control of the control electric heating cover to the heating-up temperature of gas buffer tank
Instrument 13.
Preferably, the reaction unit 20 include at least one methanator and with methanator outlet conduit
The gas chromatography system of connection.
It is preferred that the electric heating cover 12 is flexible electric heating cover, temperature controller is can to control electric heating cover to gas buffer
The heating-up temperature of tank is 35-50 DEG C of temperature controller.
In a more particular embodiment, as shown in figure 3, methanation catalyst evaluating apparatus bag of the present utility model
Include multiple raw material gas cylinders 1,2,3 and at least one dioxide bottle 4, pressure regulator valve V-1, V-2, V-3, V-4, flowmeter FM1,
FM2, FM3, FM4, gas buffer tank 5, gas mixing tank 6, one section of fine de-sulfur reactor 7, heat exchanger 8, two sections of methanation reactions
Device 9, gas chromatography system 10,11, the outlet conduit of plurality of raw material gas cylinder 1,2,3 and at least one dioxide bottle 4
Each via pressure regulator valve (V-1, V-2, V-3 or V-4) connection flow gauge FM1, FM2, FM3, a FM4, each flowmeter FM1,
FM2, FM3, FM4 outlet conduit are all connected to the import of gas mixing tank 6, and the outlet conduit of gas mixing tank 6 is divided into two
Branch road, a branch road connect the import of one section of fine de-sulfur reactor 7, another branch road connection gas chromatography system 10, one section of essence
The outlet of desulfurization reactor 7 connects the import of two sections of methanators 9 via heat exchanger 8, and two sections of methanators 9 go out
Mouth pipeline is divided into two branch roads, and a branch road connects gas chromatography system 11, and another branch road is via valve V-5 connection blow-down pipes
Road, wherein at least one dioxide bottle 4 outlet connection pressure regulator valve V-4 and flowmeter FM4 between pipeline on set
Gas buffer tank 5, the gas buffer tank 5 set electric heating cover 12, and electric heating cover internal resistance is connected with control electric heating cover
To the temperature controller 13 of the heating-up temperature of gas buffer tank.
The electric heating cover 12 can be flexible electric heating cover.
It is such as 35-50 DEG C to the heating-up temperature of gas buffer tank that temperature controller 13, which controls electric heating cover,.
The utility model is further provided using above-mentioned methanation catalyst evaluating apparatus evaluation methanation catalyst
Method, this method include：
Gas for multiple raw material gas cylinder sums of methanation enters gas mixing tank through pressure regulator valve, flowmeter, and at least
The carbon dioxide of one dioxide bottle successively passes through pressure regulator valve and gas surge tank, and the carbon dioxide is through gas
After the electric heating cover that body surge tank is set is heated to 35-50 DEG C, flowmeter is entered back into, it is upper with coming from subsequently into gas mixing tank
The gas mixing of multiple raw material gas cylinders is stated, the admixture of gas come out from gas mixing tank is divided into two-way, all the way into gas phase color
Spectra system carries out Analysis of Gaseous Components from Plasma, and another way enters one section of fine de-sulfur reactor and carries out one section of fine de-sulfur reaction, and one section of essence takes off
Reaction product after reaction of Salmon-Saxl is exchanged heat into heat exchanger, and two sections of methanation reactions are carried out subsequently into two sections of methanators,
Reaction product after two sections of methanation reactions is divided into two-way, carries out Analysis of Gaseous Components from Plasma into gas chromatography system all the way, another
Road is vented via valve.
The utility model between the pressure-reducing valve V-4 of carbon dioxide gas circuit and carbon dioxide stream gauge FM4 by increasing by one
Individual gas buffer tank 5, while a flexible electric heating cover is added on surge tank 5, control temperature is at 35-50 DEG C.So, in height
Under the conditions of pressing (5.5MPa), carbon dioxide is flowed out after pressure-reducing valve V-4 from gas cylinder 4, is in the higher temperature of relative room temperature,
It can effectively avoid carbon dioxide that gas-liquid mixture phase is presented, be allowed to be in gaseous state completely, then by being incited somebody to action during flowmeter FM4
Be not in flowmeter registration wide fluctuations, it is possible to achieve the stable charging of carbon dioxide, ensure that experimental data
Reliability, while reduce the potential safety hazard of experimental implementation.
The concrete structure of surge tank outside surge tank 5 as shown in figure 3, add an electric heating cover, heating mantle internal resistance
Temperature controller is connected to control heating-up temperature of the heating mantle to surge tank.
【Embodiment】
By taking synthetic methane catalyst evaluation experimental under condition of high voltage as an example.
Load desulphurization catalyst in first stage reactor 7, second stage reactor 9 loads methane synthesizing catalyst.Build the pressure leak test (valve
V-1, V-2, V-3, V-4, V-5 are in closed mode) temperature controller that flexible electric heating cover connects on surge tank 5 is opened afterwards, temperature is set
Degree is at 40 DEG C.The temperature of first stage reactor 7 is set as 180 DEG C, the temperature of second stage reactor 9 is 300 DEG C.Treat that temperature stabilization opens decompression
It is experiment condition flow that valve (V-1, V-2, V-3, V-4), which adjusts each gas circuit flow pressure, and regulation experiment pressure is 5.0MPa.Testing
Carbon dioxide flow registration does not occur wide fluctuations after carrying out tens of hours, and experimental data is more stable.Illustrate it is improved after
Method can make carbon dioxide in complete gaseous state by flowmeter, solving carbon dioxide flow, air inlet is not under elevated pressure conditions
The problem of steady.
It is in gas-liquid mixed shape under the conditions of room temperature high-pressure (more than 5.5MPa) that the utility model, which solves carbon dioxide,
The instability of flow that state causes to obtain by flow measurement fluctuates the problem of larger, ensures two under the conditions of high pressure (more than 5.5MPa)
Carbon oxide gas are in the pipeline of gaseous state by flowmeter and afterwards, ensure the stability of experiment.
Claims (8)
1. a kind of methanation catalyst evaluating apparatus, it is characterised in that it includes multiple raw material gas cylinders and at least one titanium dioxide
Carbon gas cylinder, pressure regulator valve, flowmeter, gas buffer tank, gas mixing tank, reaction unit,
Wherein, the outlet conduit of multiple raw material gas cylinders and at least one dioxide bottle is each via a pressure regulator valve connection flow
Gauge, the outlet conduit of each flowmeter are all connected to the import of gas mixing tank, and the outlet conduit connection of gas mixing tank is anti-
Answer device,
Gas buffer tank is set on pipeline between the pressure regulator valve and flowmeter of the outlet connection of at least one dioxide bottle,
The gas buffer tank sets electric heating cover.
2. methanation catalyst evaluating apparatus according to claim 1, it is characterised in that electric heating cover internal resistance connects
There is temperature controller of the control electric heating cover to the heating-up temperature of gas buffer tank.
3. methanation catalyst evaluating apparatus according to claim 1 or 2, it is characterised in that the reaction unit includes
At least one methanator and the gas chromatography system being connected with methanator outlet conduit.
4. methanation catalyst evaluating apparatus according to claim 1 or 2, it is characterised in that the electric heating cover is soft
Property electric heating cover.
5. methanation catalyst evaluating apparatus according to claim 1 or 2, it is characterised in that temperature controller is to control
The temperature controller that electric heating cover is 15-65 DEG C to the heating-up temperature of gas buffer tank.
6. a kind of methanation catalyst evaluating apparatus, it is characterised in that it includes multiple raw material gas cylinders and at least one titanium dioxide
Carbon gas cylinder, pressure regulator valve, flowmeter, gas buffer tank, gas mixing tank, reactor, heat exchanger, gas chromatography system, wherein more
The outlet conduit of individual raw material gas cylinder and at least one dioxide bottle is each via a pressure regulator valve connection flow gauge, Ge Geliu
The outlet conduit of gauge is all connected to the import of gas mixing tank, and the outlet conduit of gas mixing tank is divided into two branch roads, one
Branch road connects the import of first stage reactor, another branch road connection gas chromatography system, and the outlet conduit of reactor is divided into two
Branch road, a branch road connect gas chromatography system, and another branch road connects exhausting pipeline, wherein at least one dioxy via valve
Change and gas buffer tank is set on the pipeline between the pressure regulator valve and flowmeter of the outlet connection of carbon gas cylinder, the gas buffer tank is set
Electric heating cover is put, electric heating cover internal resistance is connected with temperature controller of the control electric heating cover to the heating-up temperature of gas buffer tank.
7. methanation catalyst evaluating apparatus according to claim 6, it is characterised in that the electric heating cover is flexible electrical
Heating mantle.
8. the methanation catalyst evaluating apparatus according to claim 6 or 7, it is characterised in that temperature controller is to control
The temperature controller that electric heating cover is 15-65 DEG C to the heating-up temperature of gas buffer tank.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201721136950.2U CN207163991U (en) | 2017-09-06 | 2017-09-06 | A kind of methanation catalyst evaluating apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721136950.2U CN207163991U (en) | 2017-09-06 | 2017-09-06 | A kind of methanation catalyst evaluating apparatus |
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| CN207163991U true CN207163991U (en) | 2018-03-30 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449692A (en) * | 2017-09-06 | 2017-12-08 | 新地能源工程技术有限公司 | The method of quick detection methane synthesizing catalyst anti-carbon performance |
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2017
- 2017-09-06 CN CN201721136950.2U patent/CN207163991U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449692A (en) * | 2017-09-06 | 2017-12-08 | 新地能源工程技术有限公司 | The method of quick detection methane synthesizing catalyst anti-carbon performance |
| CN107449692B (en) * | 2017-09-06 | 2019-11-05 | 新地能源工程技术有限公司 | The quickly method of detection methane synthesizing catalyst anti-carbon performance |
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