CN108151012B - A kind of methanol gasifying and catalytic combustion system and operating method - Google Patents
A kind of methanol gasifying and catalytic combustion system and operating method Download PDFInfo
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- CN108151012B CN108151012B CN201611098900.XA CN201611098900A CN108151012B CN 108151012 B CN108151012 B CN 108151012B CN 201611098900 A CN201611098900 A CN 201611098900A CN 108151012 B CN108151012 B CN 108151012B
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- methanol
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C13/00—Apparatus in which combustion takes place in the presence of catalytic material
- F23C13/02—Apparatus in which combustion takes place in the presence of catalytic material characterised by arrangements for starting the operation, e.g. for heating the catalytic material to operating temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C2900/00—Special features of, or arrangements for combustion apparatus using fluid fuels or solid fuels suspended in air; Combustion processes therefor
- F23C2900/13001—Details of catalytic combustors
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Spray-Type Burners (AREA)
Abstract
The invention discloses a kind of devices for integrating methanol gasifying and methanol oxidation burning, the device is made of methanol oxidation priming chamber, methanol gasifying room, methanol catalyst combustor, and different combustion catalysts is respectively provided in methanol oxidation priming chamber and methanol catalyst combustor.Methanol oxidation priming chamber, due to the high activity of special structure and catalyst, liquid methanol can directly burn on a catalyst, the heat gasification of methanol of releasing, realize the Quick-gasifying for being not necessarily to outer heat supply liquid methanol；Methanol after gasification carries out catalysis burning in methanol catalyst combustor, realizes methanol full combustion.The efficient catalytic without outer heat supply Quick-gasifying, methanol that the present apparatus can be realized liquid methanol burns, burn abundant no coupling product, it can be widely applied to using methanol or other liquid fuels in the civil kitchen range of fuel or warming installation, to have the characteristics that cleaning, safety, health are reliable.
Description
Technical field
The present invention relates to a kind of using methanol or other liquid fuels as the gasification of fuel and catalytic combustion system and operation side
Method is equipped with liquid fuel priming chamber, liquid fuel gasification room, fuel catalytic combustion room, can be realized liquid fuel without outer heat supply
Quick start can be widely applied for having high heat using methanol or other liquid fuels as the gas-cooker of raw material, warming stove etc.
Efficiency and fuel conversion.
Background technique
Problem of environmental pollution has become the bottleneck of puzzlement countries in the world development.Environmental pollution is to human survival, life and health
And production and living cause directly to destroy and influence, wherein atmosphere pollution has seriously endangered the existence and health of the mankind, especially
The problem of environmental pollution that winter haze takes place frequently.According to the investigation of Chinese Ministry of Environmental Protection, the combustion of the northern area of China winter Heating Season household coal
Burning is a major reason for causing haze to pollute.In order to improve air quality, China increases the confession of city civil natural gas
To the construction with natural gas auxiliary facility.But gas distributing system is difficult to be radiated outskirts of a town, County finance and rural area.And this
A little areas are substantially based on fire coal, and data statistics is shown, civil coal accounts for about 10% in Coal Consumption Structure, every annual consumption
More than 300,000,000 tons.According to the finding of Beijing, the fire coal of the rural area overwhelming majority is used for heating, and heating coal consumption accounts for life
90% or so of coal consumption total amount.Since the Land use systems of China's civil coal are mainly distributing burning, boiler type is more, quantity
Greatly, monomer small scale, post-combustion pollution object essentially directly discharge, and the overwhelming majority does not take the environmental protection such as dedusting, desulphurization and denitration
Measure causes serious environmental pollution.
Therefore, the heating of exploitation novel liquid fuel and burner technology are to realize atmosphere pollution emission reduction, improve air quality
Important measure.Alcohol radical liquid fuel is suitable for distributing or civil heating and meal due to the features such as cost performance is high, raw material is easy to get
The purpose of drink.However, at present alcohol based gas range be mostly using preheating type, the disadvantage is that starting ignition still needs to preheat,
It is inconvenient to use, and waste of energy and time.Patent 201510029614.7 discloses a kind of anti-with methanol fuel cracking
The kitchen range of device are answered, is hydrogen and carbon monoxide to improve combustibility for methanol decomposition, however belongs to since methanol decomposition reacts
In the endothermic reaction, needs outer heat supply or heat exchange to provide heat, increase the complexity of system.In addition, during methanol decomposition
It is easy to produce collection carbon, leads to catalyst inactivation or pipeline blockage；If existed in addition, the CO that cracking generates cannot be converted completely
Some potential safety problems.Patent 201510372282.2 discloses a kind of methanol gas-cooker, devised in structure large-scale combustion chamber and
Small combustion chamber exists simultaneously, and carries out burning use, realizes burning-gasification-burning automatic cycle, can sufficiently fire methanol
It burns, reduces costs, but this system start-up time is longer, operate more complex.Patent 92201695.X passes through optimization fuel chamber
Construction and magnetizing system do not need to preheat so that fuel sufficiently gasifies, but structure is complicated, needs biggish air-fuel ratio, efficiency
It is relatively low.By the study found that disclosed patent using electric heating preheat or complexity structural system come realize gasification, cause higher
Power consumption and many and diverse structure, reduce efficiency.Therefore, it is necessary to develop more energy saving, efficient liquid fuel gas-cooker or
Heating system.
Summary of the invention
For presently disclosed alcohol based gas range system structure, complicated, starting ignition needs preheating, inconvenient to use,
And the features such as waste of energy and time, the present invention propose a kind of rational technology, without outer heat supply quick start, energy-efficient, collection
At degree high methanol gasifying and catalytic combustion system and operating method.
The technical solution adopted by the present invention are as follows:
Liquid methanol enters methanol gasifying room by entrance pipe and stop valve, and in start-up mode, liquid methanol passes through
Vaporizer does not gasify, and liquid methanol and starting air mixing enter methanol oxidation priming chamber by a starting distributor,
Catalyst combustion reaction occurs for liquid methanol and starting air on the combustion catalyst loaded in methanol oxidation priming chamber, releases heat
Measure gasification of methanol；Gasification of methanol and by combustion air distribution device distribution combustion air mixing after enter methanol oxidation burn
In methanol combustion chamber gaseous methanol and air catalyst combustion reaction, methanol completely burned occur for room.The burning hot part of releasing is used
Gasify indoor liquid methanol, its excess heat for civil heating or stove use in heating methanol；When the liquid first for entering vaporizer
When alcohol can be fully vaporized prior, starting air is closed, burner enters normal operation mode.
Methanol gasifying and catalytic combustion system of the present invention, including methanol oxidation priming chamber, methanol gasifying room, methanol
Above equipment is integrated into a system by catalytic combustor.
Methanol priming chamber of the present invention, using round annular space tube-in-tube structure, filling burning starting is urged in its annular space
Agent, starting combustion catalyst uses beaded catalyst, after the liquid methanol of room temperature mixes with air, after starting distributor
Enter in round annular space from top to bottom, operative liquid methanol and air Mixture carry out catalysis combustion on the starting combustion catalyst
Burn reaction, catalysis combustion heat release make remaining methanol preheat after be gasified totally, after the inner cylinder through circular rings gap sleeve from bottom to top
It burns into methanol catalyst combustor.
Methanol gasifying room of the present invention carries out septate heat transfer using multiple layer metal coil arrangement, and metal coil pipe uses
Light pipe uses finned tube, and liquid methanol passes through metal coil pipe, is put using methanol oxidation burning in methanol combustion chamber
Heat is preheated and is gasified totally by the liquid methanol in heat transfer realization metal coil pipe.
Methanol catalyst combustor of the present invention, fills combustion catalyst in it, and entirety can be used in combustion catalyst
Honeycomb catalyst or beaded catalyst, the gaseous methanol from methanol gasifying room are empty with the burning from combustion air distribution device
Catalyst combustion reaction occurs on combustion catalyst, methanol is fully converted to from bottom to top by combustion catalyst for gas mixing
Carbon dioxide and water, gasification of the combustion heat release part for liquid methanol in methanol gasifying room, remaining combustion heat release are used for heat
Recycling.
Starting distributor of the present invention, it is equal on ring-shaped round pipe distributor to be spaced apart using circular openings structure
The aperture of 0.2-2mm, percent opening 5-60%, opening direction is downward, and the mixture of liquid methanol, air or methanol and air passes through
Aperture on distributor enters methanol oxidation priming chamber, wherein starting air passes through air pump, air-introduced machine, self-priming or air compressor
Into device.
Combustion air distribution device of the present invention, using center irradiation structure pattern, air by air pump, air-introduced machine,
Self-priming or air compressor initially enter intermediate gas collecting tube, are then evenly distributed to the air distribution branch connecting with intermediate gas collecting tube
Guan Zhong, air distribution arms are in the plane axially vertical with gas collecting tube, the 0.2-2mmm spaced apart such as in air distribution arms
Aperture, percent opening 5-60%, downward aperture at a certain angle, combustion air uniformly divided by the aperture in air distribution arms
Cloth enters methanol combustion chamber to methanol combustion chamber, after being sufficiently mixed with the gaseous methanol for carrying out spontaneous combustion priming chamber and burns.
Starting combustion catalyst active component in the present invention be one of non-noble metal oxide, carried noble metal or
Two kinds or more the combinations on composition or type of feed are supported on particle, ceramic honeycomb, metal beehive, ceramics or metal
It is made on the inert carriers such as fiber, which can realize the particle of liquid methanol catalysis burning, whole bee at normal temperature
The burning or oxidation of nest structure.
Combustion catalyst active constituent in the present invention is one of non-noble metal oxide, carried noble metal or two kinds
Combination on composition or type of feed above is supported on particle, ceramic honeycomb, metal beehive, ceramics or metallic fiber
It is made on equal inert carriers, which can be realized the catalysis burning of gaseous methanol.
Due to the implementation of above technical scheme, the invention has the following advantages over the prior art:
1. methanol gasifying and catalytic combustion system that the present invention designs are not necessarily to outer heat supply, are able to achieve quick start；
2. the methanol gasifying and catalytic combustion system that the present invention designs are compact-sized, flexible operation, it is at low cost, be able to achieve first
The completely burned of alcohol has high efficiency and economy；
3. the combustion catalyst that the present invention designs and starting combustion catalysis have strong activity and stability, service life
Long, system pressure drop is small；
4. the system is suitable for methanol and other alcohol-based liquids are the facilities such as kitchen range and the civil heating of fuel.
Detailed description of the invention
Fig. 1 is methanol gasifying of the invention and catalytic combustion system structural schematic diagram；
Fig. 2 is combustion air distribution device structural schematic diagram of the invention；
Fig. 3 is starting structure of distributor schematic diagram of the invention；
Marginal data:
1- methanol oxidation priming chamber；2- methanol gasifying room；3- methanol catalyst combustor；4- starts air；5- starting distribution
Device；6- starts combustion catalyst；7- combustion air distribution device；8- combustion air；9- combustion catalyst.
Specific embodiment
With reference to the accompanying drawing to the detailed description of the invention, only presently preferred embodiments of the present invention, cannot be limited below with this
The scope of the present invention.It is i.e. all according to equivalent changes and modifications within the scope of the patent application of the present invention, all should belong to the present invention contained
The range of lid.
Start the methanol gasifying and catalytic combustion system, passes through methanol from the liquid methanol that methanol tank temperature is 20 DEG C
Pump and stop valve enter the methanol burner, and liquid methanol initially enters methanol gasifying room 2, and methanol gasifying room is using multilayer gold
Belong to coil arrangement and carry out septate heat transfer, metal coil pipe uses finned tube, and liquid methanol passes through metal coil pipe, normally makes
Realize that the liquid methanol in metal coil pipe preheats by heat transfer using methanol oxidation combustion heat release in methanol combustion chamber with the stage
And it is gasified totally.Startup stage, liquid methanol do not gasify by vaporizer, liquid methanol and the starting air from air pump
4 mixing enter methanol oxidation priming chamber 1 by starting distributor 5, and starting distributor uses circular openings structure, in annular circle
The aperture of 0.5mm spaced apart such as on pipe distributor, percent opening 30%, opening direction is downward, the mixture of liquid methanol and air
Enter methanol oxidation priming chamber 1 by the aperture on distributor, methanol oxidation priming chamber is using round annular space tube-in-tube structure, at it
Filling burning starting catalyst 6 in annular space, starting combustion catalyst use beaded catalyst.Startup stage, the liquid first of room temperature
After alcohol mixes with air, by entering in round annular space from top to bottom after starting distributor, operative liquid methanol and air mixing
Object carries out catalyst combustion reaction on the starting combustion catalyst, and catalysis combustion heat release is gasified totally after preheating remaining methanol,
After the inner cylinder through circular rings gap sleeve enter from bottom to top methanol catalyst combustor 3 burning.Filling in methanol catalyst combustor
Integral honeycomb catalyst can be used in combustion catalyst 9, combustion catalyst, the gaseous methanol from methanol gasifying room, and carrys out spontaneous combustion
Burn the combustion air mixing of air sparger 7.Combustion air distribution device uses center irradiation structure pattern, and air passes through air pump head
It is introduced into intermediate gas collecting tube, is then evenly distributed in the air distribution arms being connect with intermediate gas collecting tube, air distribution arms
In the plane axially vertical with gas collecting tube, the aperture of 0.8mmm spaced apart, the percent opening 40% such as in air distribution arms.Gas
State methanol and combustion air pass through combustion catalyst from bottom to top, and catalyst combustion reaction occurs on combustion catalyst, by methanol
It is fully converted to carbon dioxide and water, gasification of the combustion heat release part for liquid methanol in methanol gasifying room, remaining burning is put
Heat is used for heat recovery.When the liquid methanol for entering vaporizer can be fully vaporized prior, starting air 4, burner are closed
Into normal operation mode.
Claims (8)
1. a kind of methanol gasifying and catalytic combustion system, including methanol oxidation priming chamber (1), methanol gasifying room (2), methanol oxidation
Combustion chamber (3), methanol catalyst combustor (3) are the cylinder A of about one two end opening, are equipped with about one two in cylinder A outer cover
The cylinder B of end opening, cylinder A are placed in inside cylinder B, the upper open end airtight connection of cylinder A and cylinder B, cylinder A and cylinder B
Lower open end airtight connection, the chamber between cylinder A and cylinder B is methanol gasifying room (2)；
The cylinder C that methanol oxidation priming chamber (1) is a upper end opening, lower end is closed is equipped with about one two end in cylinder C internal sleeve
The cylinder D of opening, cylinder D are placed in inside cylinder C, the upper open end airtight connection of cylinder C and cylinder D, the lower open end of cylinder D
There are gaps between the bottom cylinder C, and the chamber between cylinder C and cylinder D is methanol oxidation priming chamber (1), urge in methanol
Change and is filled with starting combustion catalyst (6) in the middle part of priming chamber；
It is filled with combustion catalyst (9) in the middle part of methanol catalyst combustor (3), the upper open end of cylinder D and the under shed of cylinder A
Airtight connection is held, makes to be connected inside the inside of cylinder A and cylinder D；
The gas as combustion air distribution device (7) is equipped with below methanol catalyst combustor (3) lower part, combustion catalyst (9)
Distributor；The gas as starting distributor (5) is equipped with above methanol oxidation priming chamber (1) top, starting combustion catalyst (6)
Body distributor；Combustion air distribution device (7) and starting distributor (5) are connected with outside air respectively；Methanol oxidation priming chamber
Interior filling can realize the particle of liquid methanol catalysis burning, the burning of integral honeycomb structure or oxidation catalyst at normal temperature；
In being wound with metal tube in the outside wall surface of methanol gasifying room (2) interior cylinder A, metal tube upper port and liquid methanol storage tank
It is connected, metal infratubal port is connected with starting distributor (5).
2. the apparatus according to claim 1, it is characterised in that: cylinder C and cylinder D is cylinder, methanol oxidation priming chamber
Using round annular space tube-in-tube structure, filling starting combustion catalyst, liquid methanol are enterprising in the starting combustion catalyst in it
Row catalyst combustion reaction；
Loaded particles or integrally-built combustion catalyst in methanol catalyst combustor.
3. the apparatus according to claim 1, it is characterised in that: twined in the outside wall surface of methanol gasifying room (2) interior cylinder A
Metal tubular is wound with into metal coil arrangement, methanol gasifying room carries out septate heat transfer using multiple layer metal coil arrangement, realizes liquid
State methanol gasifying；
Methanol catalyst combustor fills combustion catalyst in it, and the methanol gas and air after gasification are on combustion catalyst
Catalyst combustion reaction occurs, methanol is fully converted to carbon dioxide and water.
4. the apparatus according to claim 1, it is characterised in that: outside air passes through air pump, air-introduced machine, self-priming or air pressure
Contracting machine enters starting distributor (5) conduct starting air through methanol starting chamber inlet air valve or enters through combustion air valve
Combustion air distribution device (7) is used as combustion air (8).
5. device according to claim 1 or 4, it is characterised in that: starting distributor opens pore structure using ring-shaped round pipe,
On ring-shaped round pipe distributor, the through-hole of 0.2-2mm is opened at equal intervals, the mixture of liquid methanol, air or methanol and air is logical
The aperture crossed on distributor enters methanol oxidation priming chamber.
6. device according to claim 1 or 4, it is characterised in that: combustion air distribution device uses center irradiation structure shape
Formula, air initially enter intermediate gas collecting tube, are then evenly distributed in the gas distribution tube being connected with intermediate gas collecting tube, pass through
The through-hole opened on gas distribution tube is evenly distributed to methanol catalyst combustor；Gas distribution tube is 2 arrangement above in centre
Outside gas collecting tube, gas distribution tube is evenly distributed in the plane axially vertical with gas collecting tube.
7. a kind of operating method of any described device of claim 1-6, it is characterised in that: the device can be applied to methanol and
In other alcohol-based liquids in one or two or more kinds of kitchen range or civil heating facility for fuel；
Liquid methanol enters methanol gasifying room by entrance pipe and stop valve, and in start-up mode, liquid methanol passes through methanol
Vaporizer does not gasify, and liquid methanol and starting air (4) mixing enter methanol oxidation by a starting distributor (5)
Priming chamber, liquid methanol and starting air (4) are urged on the starting combustion catalyst (6) loaded in methanol oxidation priming chamber
Change combustion reaction, releases heat gasification of methanol；Gasification of methanol and the combustion air (8) being distributed by combustion air distribution device (7)
Enter methanol catalyst combustor after mixing, catalyst combustion reaction, methanol occurs in methanol catalyst combustor gaseous methanol and air
Completely burned；The burning hot part of releasing gasifies indoor liquid methanol, its excess heat for civil heating for heating methanol
Or stove is used；When the liquid methanol for entering vaporizer can be fully vaporized prior, starting air (4) is closed, burner enters just
Regular operation mode.
8. operating method according to claim 7, it is characterised in that: methanol temperature is exported by detection methanol gasifying room,
It opens methanol and starts chamber inlet air valve, realize starting and the switching of normal operation mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611098900.XA CN108151012B (en) | 2016-12-04 | 2016-12-04 | A kind of methanol gasifying and catalytic combustion system and operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611098900.XA CN108151012B (en) | 2016-12-04 | 2016-12-04 | A kind of methanol gasifying and catalytic combustion system and operating method |
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| Publication Number | Publication Date |
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| CN108151012A CN108151012A (en) | 2018-06-12 |
| CN108151012B true CN108151012B (en) | 2019-07-26 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2329739A1 (en) * | 1975-03-24 | 1977-05-27 | Comstock & Wescott | FLAMELESS CATALYTIC COMBUSTIBLE FUEL RESERVE |
| CN1291273A (en) * | 1998-12-18 | 2001-04-11 | 松下电器产业株式会社 | Catalyst combustion device |
| TW577186B (en) * | 2003-01-21 | 2004-02-21 | Asia Pacific Fuel Cell Tech | Device and method for heating hydrogen storage container |
| CN101054160A (en) * | 2006-04-10 | 2007-10-17 | 中国科学院大连化学物理研究所 | Mini reforming hydrogen-preparation reactor |
| CN201531873U (en) * | 2009-10-27 | 2010-07-21 | 中国石油化工股份有限公司 | Catalytic combustion reactor |
-
2016
- 2016-12-04 CN CN201611098900.XA patent/CN108151012B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2329739A1 (en) * | 1975-03-24 | 1977-05-27 | Comstock & Wescott | FLAMELESS CATALYTIC COMBUSTIBLE FUEL RESERVE |
| CN1291273A (en) * | 1998-12-18 | 2001-04-11 | 松下电器产业株式会社 | Catalyst combustion device |
| TW577186B (en) * | 2003-01-21 | 2004-02-21 | Asia Pacific Fuel Cell Tech | Device and method for heating hydrogen storage container |
| CN101054160A (en) * | 2006-04-10 | 2007-10-17 | 中国科学院大连化学物理研究所 | Mini reforming hydrogen-preparation reactor |
| CN201531873U (en) * | 2009-10-27 | 2010-07-21 | 中国石油化工股份有限公司 | Catalytic combustion reactor |
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| Publication number | Publication date |
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| CN108151012A (en) | 2018-06-12 |
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