CN101220306A - Mix pipeline gas and dispensing method thereof - Google Patents
Mix pipeline gas and dispensing method thereof Download PDFInfo
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- CN101220306A CN101220306A CNA2007100364506A CN200710036450A CN101220306A CN 101220306 A CN101220306 A CN 101220306A CN A2007100364506 A CNA2007100364506 A CN A2007100364506A CN 200710036450 A CN200710036450 A CN 200710036450A CN 101220306 A CN101220306 A CN 101220306A
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- gas
- dimethyl ether
- natural gas
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- fuel gas
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Abstract
The invention relates to a mixed pipeline fuel gas, and is prepared by 5-95 percent volumes of dimethyl ether fuel gas and 5-95 percent volumes of natural gas; a dispatching method of the mixed pipeline fuel gas is that: firstly, impurity in liquid dimethyl ether is filtered and removed, and the liquid dimethyl ether is led into a thermal compensation carburetor and is gasified; then the gasified dimethyl ether is mixed and matched with the natural gas in the equal pressure measurement and made into mixed fuel gas to be stored in a gas holder; then the mixed fuel gas stored in the gas holder is sent into a user terminal by a middle and a low pressure two-stage transmission tubing. The mixed pipeline fuel gas has the advantages that the combustion property of the mixed pipeline fuel gas accords with 12T natural gas; the dimethyl ether can be blended with the natural gas with any proportion; when a supply of the natural gas is not enough, proper amount of dimethyl ether can be added to the former used pipe network of natural gas to recover the natural gas; for pipe network which has increasing users when the amount of natural gas supply is unchanged, a supplement of proper amount of dimethyl ether can enlarge the amount of pipe line gas supply and meet the requirements of appended users.
Description
Technical field
The present invention relates to a kind of combustion gas, particularly a kind of mixing duct combustion gas and allocator thereof.
Background technology
The petroleum resources that earth national fishing shelf can be adopted are few, only can supply human use's many decades time.This causes ballooning oil prices in recent years, is just affecting the countries in the world expanding economy.Though and coal can be made fuel with coal and can give off a large amount of obnoxious flavoures for hundreds of years of human exploitation, atmosphere is produced serious pollution.Therefore, substitute energy is just being sought in countries in the world, and from the protection environment, requiring this substitute energy is the clean fuel that only discharges trace harmful gases.
Dme (DME) is a kind of nontoxic oxygenated fuel, and normal temperature and pressure is down gaseous state, just can realize liquefaction under 5 normal atmosphere, and the pressure that needs 8 normal atmosphere to liquefy than the liquefied petroleum gas (LPG) of family expenses is also low, so security is better than liquefied petroleum gas (LPG).This dme not only can extract from coal, coal-seam gas and Sweet natural gas, and the product-methyl alcohol in also can being produced by the connection alcohol of nitrogen fertilizer plant gets through dehydration.Along with the development of science and technology and the modernization of industry, can also be by CO
2The production of contact hydrogenation can also even be extracted from domestic refuse by each kind of plant.
Along with the progress of science and technology, the development of synthesizing methanol technology, make with methyl alcohol be base-material produce that dme (DME) acted as a fuel may.The prepared methyl alcohol of cheap raw material can be competed mutually with other fuel (mainly being hydrocarbon fuel), and for example methyl alcohol is in more more economical than Sweet natural gas aspect storage and the pipe-line transportation (referring to carry at a distance more than 5000 kilometers).Have at coal, Sweet natural gas, oil under the situation of certain rate of exchange, the methyl alcohol of being produced by coal may be most economical and can mass-produced liquid fuel, its output may reach by coal prepared various rich can products (for example synthetic natural gas, ammonia and hydrogen) 25%～30%.
Dme does not exist in nature, must be made as raw material by other material.Sweet natural gas and coal are raw materials preferably at present.The exploited time of Sweet natural gas is 65 years, and coal can supply exploitation more than 250 years, even reaches 400 years, is a kind of selection preferably so utilize coal to produce dme.Coal directly has following shortcoming as fuel:
1, coal is a solid, is difficult to use pipe-line transportation;
2, ash content is many in the coal, can increase transportation cost, and the burning back also has the handling problem of ash;
3, burning produces a large amount of SO
X, NO
XDeng obnoxious flavour, and produce a large amount of coal dusts, atmosphere and environment are produced severe contamination,, must spend great amount of investment and handle in order to prevent to pollute;
4, low-calorie brown coal, sub-bituminous coal etc. can not finely utilize.
And with coal as the raw material production dme, act as a fuel with dme again, then above-mentioned shortcoming has all overcome, and methane also can use in the coal seam.
Coal Gasification Technology is not wasted any composition in the coal, and the sulphur in the coal becomes bright sulfur and is recovered, and ash becomes the cleaning slag, the raw material that can be used as ceramic tile and brick, the advantage of this technology also is, can use various coals, comprises brown coal and sub-bituminous coal inferior.
Can be converted into 1 ton of non-petroleum-based fuel with 3 tons of mark coals, production cost only is 84% of a diesel oil, 45% of gasoline.
Summary of the invention
Purpose of the present invention is in order to alleviate the energy shortage situation of present existence, a kind of mixing duct combustion gas and allocator thereof to be provided.
The object of the present invention is achieved like this: a kind of mixing duct combustion gas, and formulated by the Sweet natural gas of the dimethyl ether fuel gas of 5%-95% volume and 5%-95% volume.
The allocator of above-mentioned mixing duct combustion gas may further comprise the steps:
A, liquid dimethyl ether filter is removed impurity;
B, will import in the thermal compensation vaporizer through filtering liquid dimethyl ether and gasify;
C, the dme after will gasifying and Sweet natural gas carry out the equipressure metering and are mixed, and make air mixture and are stored in the gas holder;
D, will be stored in the gas holder air mixture through in, low pressure two-stage transmission and distribution network sends into user terminal.
The gasification temperature of the thermal compensation vaporizer described in the step B is controlled at 〉=and 30 ℃.
Middle pressure described in the step D is 500mmH
2O～0.15MPa, low pressure is≤500mmH
2O.
The combustioncharacteristics of mixing duct combustion gas of the present invention meets the requirement of 12T Sweet natural gas, and dme and Sweet natural gas can be mixed by arbitrary proportion.For the pipe network of original use Sweet natural gas, under the insufficient situation of natural gas supply,, can remedy the deficiency of Sweet natural gas by mending an amount of dme; Pipe network for the constant and user of deliverability of gas increases by mending an amount of dme, can enlarge the supply of pipe gas, satisfies the needs that Add User.In the above two kinds of cases, the combustioncharacteristics of pipe gas remains unchanged substantially, and user's use habit can remain unchanged.
Embodiment
Mixing duct combustion gas of the present invention is formulated by the Sweet natural gas of the dimethyl ether fuel gas of 5%-95% volume and 5%-95% volume.Its allocator is liquid dimethyl ether to be filtered remove impurity and import in the thermal compensation vaporizer earlier and gasify; Dme after then will gasifying and Sweet natural gas carry out the equipressure metering and are mixed, and make air mixture and are stored in the gas holder; To be stored in then in the gas holder air mixture through in, low pressure two-stage transmission and distribution network sends into user terminal.Table 1 has been listed 11 specific embodiments of mixing duct combustion gas of the present invention, and the air mixture among each embodiment all meets the combustion gas standard of 12T Sweet natural gas, and (the white index W of China is 11488～13850Kcal/Nm
3, combustion potential CP is 36～88).
Table 1
| The embodiment sequence number | Dme % | Sweet natural gas % | Calorific value Kcal/Nm 3 | The white index W Kcal/m of China 3 | Combustion potential CP |
| 1 | 10 | 90 | 10282 | 12434 | 39.9 |
| 2 | 20 | 80 | 10891 | 12280 | 40.58 |
| 3 | 25 | 75 | 11195 | 12230 | 40.94 |
| 4 | 30 | 70 | 11500 | 12195 | 41.31 |
| 5 | 40 | 60 | 12110 | 12150 | 42.13 |
| 6 | 50 | 50 | 12480 | 12140 | 42.94 |
| 7 | 60 | 40 | 13327 | 12160 | 43.80 |
| 8 | 70 | 30 | 13936 | 12192 | 44.62 |
| 9 | 75 | 25 | 14240 | 12225 | 45.06 |
| 10 | 80 | 20 | 14545 | 12255 | 45.49 |
| 11 | 90 | 10 | 15154 | 12320 | 46.33 |
Claims (4)
1. mixing duct combustion gas is characterized in that: the Sweet natural gas by the dimethyl ether fuel gas of 5%-95% volume and 5%-95% volume is formulated.
2. the allocator of mixing duct combustion gas as claimed in claim 1 is characterized in that, may further comprise the steps:
A, liquid dimethyl ether filter is removed impurity;
B, will import in the thermal compensation vaporizer through filtering liquid dimethyl ether and gasify;
C, the dme after will gasifying and Sweet natural gas carry out the equipressure metering and are mixed, and make air mixture and are stored in the gas holder;
D, will be stored in the gas holder air mixture through in, low pressure two-stage transmission and distribution network sends into user terminal.
3. the allocator of air mixture as claimed in claim 2 is characterized in that: the gasification temperature of the thermal compensation vaporizer described in the step B is controlled at 〉=and 30 ℃.
4. the allocator of mixing duct combustion gas as claimed in claim 2 is characterized in that: the middle pressure described in the step D is 500mmH
2O～0.15MPa, low pressure is≤500mmH
2O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100364506A CN101220306A (en) | 2007-01-12 | 2007-01-12 | Mix pipeline gas and dispensing method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2007100364506A CN101220306A (en) | 2007-01-12 | 2007-01-12 | Mix pipeline gas and dispensing method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101220306A true CN101220306A (en) | 2008-07-16 |
Family
ID=39630385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007100364506A Pending CN101220306A (en) | 2007-01-12 | 2007-01-12 | Mix pipeline gas and dispensing method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101220306A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102260557A (en) * | 2010-05-28 | 2011-11-30 | 上海联翔置业有限公司 | Low-temperature gasification method of dimethyl ether |
| CN102705703A (en) * | 2012-02-03 | 2012-10-03 | 常熟市华技锅炉制造有限公司 | Gas generating device |
| CN101649958B (en) * | 2009-09-07 | 2012-12-12 | 贵州天福化工有限责任公司 | Air supply method for pipe network of dimethyl ether bottle group station |
| CN114015485A (en) * | 2021-01-15 | 2022-02-08 | 锦州安燃高能切割气有限公司 | Natural gas metal welding and cutting gas |
-
2007
- 2007-01-12 CN CNA2007100364506A patent/CN101220306A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101649958B (en) * | 2009-09-07 | 2012-12-12 | 贵州天福化工有限责任公司 | Air supply method for pipe network of dimethyl ether bottle group station |
| CN102260557A (en) * | 2010-05-28 | 2011-11-30 | 上海联翔置业有限公司 | Low-temperature gasification method of dimethyl ether |
| CN102705703A (en) * | 2012-02-03 | 2012-10-03 | 常熟市华技锅炉制造有限公司 | Gas generating device |
| CN114015485A (en) * | 2021-01-15 | 2022-02-08 | 锦州安燃高能切割气有限公司 | Natural gas metal welding and cutting gas |
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| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Open date: 20080716 |