CN205634877U - A heating device for methyl alcohol reformation hydrogen generation - Google Patents
A heating device for methyl alcohol reformation hydrogen generation Download PDFInfo
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- CN205634877U CN205634877U CN201620413966.2U CN201620413966U CN205634877U CN 205634877 U CN205634877 U CN 205634877U CN 201620413966 U CN201620413966 U CN 201620413966U CN 205634877 U CN205634877 U CN 205634877U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model relates to a heating device for methyl alcohol reformation hydrogen generation, its heating system include methyl alcohol case, oxygen jar, combustion chamber, raw material tank, heat exchanger, water tank, vaporizer, reactor, separator, circulating pump, heating system use methyl alcohol and the hydrogeneous tail gas that obtains through separator as fuel, use compression oxygen as the oxidant, both burn in the combustion chamber, for the water tank heat supply, turn into high temperature high pressure steam with the mixture of the water in the water tank and ethylene glycol or glycerine, and it is mobile to be closed circulation through the circulating pump, high temperature high pressure steam successively is reforming reactor, the vaporizer, the heat exchanger provides the heat, make the stepwise temperature rise of methanol -water reactant, the vaporization, reach the reforming reaction temperature, carry out the reforming reaction and prepare hydrogen in the reactor. The utility model provides a pair of a heating device for methyl alcohol reformation hydrogen generation has simple structure, heat utilization efficiency height, good reliability, convenient, the operation cost low grade advantage of maintenance.
Description
Technical field
This utility model relates to a kind of heating plant for preparing hydrogen by reforming methanol reaction, belongs to heat supply and transmission technique field.
Background technology
Environmental pollution, energy crisis increasingly serious, making taps a new source of energy become solve this problem effective way.Hydrogen Energy is efficient, environmental protection, and the future ideality energy being well recognized as just is attract increasing research worker and putting among the research and development of Hydrogen Energy.Electrochemistry and heat chemistry are the two ways that hydrogen utilizes, and electrochemistry releases energy at normal temperatures, and product is water, almost to environment without any pollution.The combustion heat value of hydrogen is high, and calorific value is 14.3 × 107J/kg, the heat after the burning of every kg of hydrogen, about 3 times of gasoline, 3.9 times of ethanol, 4.5 times of coke；In addition to nuclear fuel, the calorific capacity of hydrogen is the highest in all Fossil fuels and bio-fuel.
At present, main hydrogen producing technology includes Fossil fuel hydrogen manufacturing, water electrolysis hydrogen producing, solar hydrogen making, biomass hydrogen preparation etc..Fuel reformation is the important way of Fossil fuel hydrogen manufacturing, and it is the process that the Fossil fuel of high-energy-density is converted under certain catalysts conditions hydrogen-rich gas.Numerous can be used in the raw materials that fuel is reformed, the low-carbon alcohols fuel source such as methanol is extensive, can produce from biomass, cheap, and preparation process condition relaxes, carbonization less pollution, is to select for the desirable feedstock of onboard hydrogen source.
At present, preparing hydrogen by reforming methanol mode mainly has three kinds: confession thermal reforming, partial oxidative steam reforming and steam reformation, uses which kind of mode hydrogen manufacturing to depend on use condition and demanded fuel.Methanol cluster hydrogen production reaction be methanol, desalted water mixing after through heating vaporization after enter reforming reactor, under certain temperature, pressure and catalysts conditions, there is methanol decomposition and carbon monoxide water gas shift reaction, produce hydrogen, carbon dioxide and the carbon monoxide of trace.Preparing hydrogen by reforming methanol have reaction temperature low, outlet H2The features such as content height and CO content lack, its net reaction is as follows:
CH3OH+H2O→CO2+3H2-49.5kJ/mol
Preparing hydrogen by reforming methanol reaction temperature is 220～280 DEG C, is the endothermic reaction, it is therefore desirable to extraneous offer heat.At present, existing preparing hydrogen by reforming methanol reaction unit is generally using conduction oil as heating, heat transfer carrier.Conduction oil mostly is high boiling alkyl benzene-type, mineral type silicone oil, and its heating mainly has two ways, and one is to use electrical heating, i.e. uses the power supply of 220V or 380V, is heated conduction oil by heating wire；Another kind is, by the Fossil fuel such as burning diesel oil, coal, conduction oil is carried out boiler type heating.Conduction oil is that the advantage of heat transfer carrier is that temperature control is more accurate, it is heated evenly inside reforming reactor, safety in utilization is good, it is disadvantageous in that: along with using time lengthening, conduction oil be susceptible to thermal cracking, thermal polymerization etc. reaction, cause conduction oil mobility be deteriorated and produce coking, blocking oil pipe even cause pipe explosion accident.Accordingly, it would be desirable to the parameters such as periodic monitoring heat conduction oil viscosity, acid number, carbon residue, flash-point, and remove the dregs of fat in tank in time, regularly replace new conduction oil.So, in preparing hydrogen by reforming methanol reaction, device systems need to periodically stop, and equipment operational reliability will be by extreme influence.Additionally, be limited to the Incoercibility of liquid, conduction oil device systems is open heating system, and during its long-term work, in conduction oil, the volatilization of lower-molecular-weight component will also result in severe contamination to working environment.
Summary of the invention
The purpose of this utility model is for the deficiency in existing hydrogen from methyl alcohol reaction heat supply process, it is provided that a kind of simple in construction, heat utilization ratio height, good reliability, the heating plant reacted for preparing hydrogen by reforming methanol of the advantage such as easy to maintenance, operation cost is low.
This utility model be the technical scheme is that by solving the problems referred to above
A kind of heating plant for preparing hydrogen by reforming methanol reaction, it includes methanol tank, oxygen tank, combustor, material box, heat exchanger, water tank, carburator, reactor, segregation apparatus and circulating pump；The outlet of one of described methanol tank outlet and oxygen tank respectively with combustor import UNICOM；Another outlet and the material box import UNICOM of methanol tank；Material box, heat exchanger, carburator, reactor, segregation apparatus sequentially UNICOM；Combustor and water tank UNICOM, simultaneously combustor also with segregation apparatus UNICOM；From water tank to circulating pump, reactor, carburator, heat exchanger, then constitute closed cycle flow circuits to water tank 6 UNICOM.
Further technical scheme is:
The described heating plant for preparing hydrogen by reforming methanol reaction, its methanol tank is provided with dosing pump and the mass flow controller of methanol, and the methanol in methanol tank both supplied combustor as fuel, also served as reaction raw materials base feed case.
The described heating plant for preparing hydrogen by reforming methanol reaction, install on its water tank and include temperature transmitter, pressure transmitter, liquid level sensor, safety valve component, the level value of the temperature of high temperature and high pressure steam, pressure and water in monitoring water tank, when in water tank, pressure exceedes setting value, by the timely pressure release of relief valve.
The described heating plant for preparing hydrogen by reforming methanol reaction, it is characterised in that the water in described water tank is deionized water.
The described heating plant for preparing hydrogen by reforming methanol reaction, its segregation apparatus is pressure-swing absorption apparatus or palladium film purification devices.
The described heating plant for preparing hydrogen by reforming methanol reaction, its circulating pump is high-pressure circulation pump.
The beneficial effects of the utility model are:
(1) a kind of heating plant for preparing hydrogen by reforming methanol reaction that this utility model provides, has the features such as simple in construction, reliability are high, easy to operate.
(2) this utility model is with high temperature and high pressure steam as heat transfer carrier, the phenomenon such as fouling, blocking pipeline will not occur, and by high-pressure circulation pump be closed cycle flow, not only heat utilization ratio is high, working service is convenient, also improve the production efficiency of hydrogen production units by carbinol, significantly reduce operation cost, and to environment without any pollution.
Accompanying drawing explanation
Fig. 1 is system annexation and the schematic flow sheet of a kind of heating plant for preparing hydrogen by reforming methanol reaction that this utility model provides.
The device name that in figure, labelling is corresponding is: 1-methanol tank, 2-oxygen tank, 3-combustor, 4-material box, 5-heat exchanger, 6-water tank, 6.1-temperature transmitter, 6.2-pressure transmitter, 6.3-fluid level transmitter, 6.4-relief valve, 7-carburator, 8-reactor, 9-segregation apparatus, 10-circulating pump.
Detailed description of the invention
It is as follows that the utility model is described in further detail in conjunction with the accompanying drawings and embodiments:
Embodiment 1: as it is shown in figure 1, be a basic embodiment.A kind of heating plant for preparing hydrogen by reforming methanol reaction, it includes methanol tank 1, oxygen tank 2, combustor 3, material box 4, heat exchanger 5, water tank 6, carburator 7, reactor 8, segregation apparatus 9 and circulating pump 10；The outlet of one of described methanol tank 1 outlet and oxygen tank 2 respectively with combustor 3 import UNICOM；Another outlet and the material box 4 import UNICOM of methanol tank 1；Material box 4, heat exchanger 5, carburator 7, reactor 8, segregation apparatus 9 sequentially UNICOM；Combustor 3 and water tank 6 UNICOM, simultaneously combustor 3 also with segregation apparatus 9 UNICOM；From water tank 6 to circulating pump 10, reactor 8, carburator 7, heat exchanger 5, then constitute closed cycle flow circuits to water tank 6 UNICOM.
Embodiment 2: be the further embodiment on the basis of embodiment 1.The described heating plant for preparing hydrogen by reforming methanol reaction, its methanol tank 1 is provided with dosing pump and the mass flow controller of methanol, and the methanol in methanol tank 1 both supplied combustor 3 as fuel, also served as reaction raw materials base feed case 4.Install on described water tank 6 and include temperature transmitter 6.1, pressure transmitter 6.2, liquid level sensor 6.3, relief valve 6.4 parts, the level value of the temperature of high temperature and high pressure steam, pressure and water in monitoring water tank 6, when in water tank 6, pressure exceedes setting value, by the timely pressure release of relief valve 6.4.Water in water tank 6 is deionized water, and the ethylene glycol added in water or the ratio of glycerol are 1～10wt%.Described segregation apparatus 9 is pressure-swing absorption apparatus or palladium film purification devices.Circulating pump 10 is high-pressure circulation pump.
The industrial grade oxygen that oxygen is compressed gaseous or liquid in described oxygen tank 2, its gauge of the oxygen in oxygen tank 2 is 0.1～2.0MPa.Industrial grade oxygen purity >=99.5%.The temperature range of the high temperature and high pressure steam obtained after the water vapor in described water tank 6 is 120～300 DEG C, and pressure limit is 0.5～3.0MPa, high temperature and high pressure steam and the raw material formation heat convection flowing through heat exchanger 5, carburator 7, reactor 8.
Heating system is with methanol and the hydrogen containing tail gas that obtained by segregation apparatus 9 as fuel, with compressed oxygen as oxidant, both burn at combustor 3, for water tank 6 heat supply, the mixture of the water in water tank 6 and ethylene glycol or glycerol is converted into high temperature and high pressure steam, and flowed in closed cycle by circulating pump 10, high temperature and high pressure steam successively provides heat for reforming reactor 8, carburator 7, heat exchanger 5, methanol-water reaction raw materials is made progressively to heat up, vaporize, reach reforming reaction temperature, reactor 8 carries out reforming reaction hydrogen making.
Embodiment 3: unlike enforcement 2, the water in described water tank 6 is deionized water, is added with the ethylene glycol of 5wt%, both for reducing the flow resistance of steam, it is possible to as antifreezing agent in water.The segregation apparatus 9 of described reforming reaction products therefrom gas is pressure-swing absorption apparatus.The industrial grade oxygen purity that oxygen is compressed gaseous in described oxygen tank 2 is: 99.9%, and its gauge is 2.0MPa.Described water tank 6, when pressure exceedes setting value 3.0MPa in case, can pass through the timely pressure release of relief valve 6.4.In described water tank 6, the temperature of high temperature and high pressure steam is 280 ± 10 DEG C, pressure limit 2.5 ± 0.1MPa, high temperature and high pressure steam with flow through heat exchanger 5, carburator 7, the raw material of reactor 8 are that methanol-water mixed liquor forms convective heat transfer, to improve the heat exchange efficiency of two media.
Embodiment 4: the water in described water tank 6 is deionized water, is added with the glycerol of 10wt%, both for reducing the flow resistance of steam, it is possible to as antifreezing agent in water.The segregation apparatus 9 of described reforming reaction products therefrom gas is palladium film purification devices.
Claims of the present utility model is not limited to above-described embodiment.
Claims (6)
1. the heating plant for preparing hydrogen by reforming methanol reaction, it is characterised in that it includes methanol tank
(1), oxygen tank (2), combustor (3), material box (4), heat exchanger (5), water tank (6), vaporization
Device (7), reactor (8), segregation apparatus (9) and circulating pump (10)；Described methanol tank (1)
One outlet and oxygen tank (2) outlet respectively with combustor (3) import UNICOM；Methanol tank (1)
Another outlet with material box (4) import UNICOM；Material box (4), heat exchanger (5), carburator (7),
Reactor (8), segregation apparatus (9) sequentially UNICOM；Combustor (3) and water tank (6) UNICOM, simultaneously
Combustor (3) also with segregation apparatus (9) UNICOM；From water tank (6) to circulating pump (10), reactor (8),
Carburator (7), heat exchanger (5), then constitute closed cycle flow circuits to water tank (6) UNICOM.
Heating plant for preparing hydrogen by reforming methanol reaction the most according to claim 1, its feature exists
In, methanol tank (1) is provided with dosing pump and the mass flow controller of methanol, in methanol tank (1)
Methanol both as fuel supply combustor (3), also served as reaction raw materials base feed case (4).
Heating plant for preparing hydrogen by reforming methanol reaction the most according to claim 1, its feature exists
In, the upper installation of described water tank (6) includes that temperature transmitter (6.1), pressure transmitter (6.2), liquid level pass
Sensor (6.3), relief valve (6.4) parts, be used for monitoring water tank (6) interior high temperature and high pressure steam temperature,
Pressure and the level value of water, when in water tank (6), pressure exceedes setting value, by relief valve (6.4) and
Time pressure release.
Heating plant for preparing hydrogen by reforming methanol reaction the most according to claim 1, its feature exists
In, the water in described water tank (6) is deionized water.
Heating plant for preparing hydrogen by reforming methanol reaction the most according to claim 1, its feature exists
In, described segregation apparatus (9) is pressure-swing absorption apparatus or palladium film purification devices.
Heating plant for preparing hydrogen by reforming methanol reaction the most according to claim 1, its feature exists
In, described circulating pump (10) is high-pressure circulation pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413966.2U CN205634877U (en) | 2016-05-09 | 2016-05-09 | A heating device for methyl alcohol reformation hydrogen generation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620413966.2U CN205634877U (en) | 2016-05-09 | 2016-05-09 | A heating device for methyl alcohol reformation hydrogen generation |
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| CN205634877U true CN205634877U (en) | 2016-10-12 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032300A (en) * | 2017-05-05 | 2017-08-11 | 金澳科技（湖北）化工有限公司 | A kind of hydrogen production by methanol system of reactor feed temperature stabilization |
| CN110790233A (en) * | 2019-10-28 | 2020-02-14 | 中科液态阳光(苏州)氢能科技发展有限公司 | Membrane separation purification device heat exchange system for methanol-water hydrogenation station |
| CN111509279A (en) * | 2020-04-30 | 2020-08-07 | 郑州帅先新能源科技有限公司 | In-situ hydrogen production fuel cell system |
-
2016
- 2016-05-09 CN CN201620413966.2U patent/CN205634877U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107032300A (en) * | 2017-05-05 | 2017-08-11 | 金澳科技（湖北）化工有限公司 | A kind of hydrogen production by methanol system of reactor feed temperature stabilization |
| CN107032300B (en) * | 2017-05-05 | 2019-04-26 | 金澳科技（湖北）化工有限公司 | A kind of hydrogen production by methanol system that reactor feed temperature is stable |
| CN110790233A (en) * | 2019-10-28 | 2020-02-14 | 中科液态阳光(苏州)氢能科技发展有限公司 | Membrane separation purification device heat exchange system for methanol-water hydrogenation station |
| CN111509279A (en) * | 2020-04-30 | 2020-08-07 | 郑州帅先新能源科技有限公司 | In-situ hydrogen production fuel cell system |
| CN111509279B (en) * | 2020-04-30 | 2021-06-22 | 郑州帅先新能源科技有限公司 | In-situ hydrogen production fuel cell system |
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