CN102604699A - Synergistic additive of natural-gas as welding and cutting gas - Google Patents
Synergistic additive of natural-gas as welding and cutting gas Download PDFInfo
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- CN102604699A CN102604699A CN2011100216252A CN201110021625A CN102604699A CN 102604699 A CN102604699 A CN 102604699A CN 2011100216252 A CN2011100216252 A CN 2011100216252A CN 201110021625 A CN201110021625 A CN 201110021625A CN 102604699 A CN102604699 A CN 102604699A
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Abstract
The invention discloses a synergistic additive of natural-gas as welding and cutting gas, and relates to the technical field of the synergistic additives of the natural-gas as the welding and cutting gas, wherein a preparation process of the synergistic additive comprises the following steps: uniformly mixing ethanol with petroleum ether for later use; adding tetrahydrofuran into a reaction kettle, adding bis(cyclopentadienyl) iron and a liquid cerium-aluminum composite rare earth catalyst into the reaction kettle to stir, and mixing with the mixed solution after dissolving completely; and standing for 4 hours and discharging clear liquid through a liquid discharge valve at the side of the reaction kettle, and filling the clear liquid into a package bucket to obtain the synergistic additive. The synergistic additive combines a catalytic activation principle of the cerium-aluminum composite rare earth and special organic chemical materials to play roles of increasing the temperature and assisting the combustion in the natural gas, resisting against explosion and increasing the flame temperature of the combustion of the natural gas in oxygen. In addition, the synergistic additive can be gasified under certain pressure and mixed with the natural gas to increase the activity coefficient index of the natural gas and increase the temperature of the combustion of the natural gas in oxygen to about 3430 DEG C, which is at an advanced level in the industry. The synergistic additive can completely replace acetylene in cutting, welding, baking and flame spraying functions.
Description
Technical field:
The present invention relates to welding and cutting natural gas Synergistic additives technical field, be specifically related to a kind of Sweet natural gas compound rare-earth Synergistic additives and preparation method.
Background technology:
After French scientist applied to metal cutting and welding field with oxygen-acetylene gas before more than 100 years, acetylene gas just became the main combustion gas of global metal welding, and great industrial revolution and human technological innovation were had irreplaceable contribution.
The height because acetylene gas consumes energy in process of production; Pollute big; Blast easily; SF hang down transportation, store and use in all exist many maximum discharges, high pollution, the many countries of lower security all to substitute the new energy-conserving and environment-protective of acetylene, the infant industry combustion gas of low-carbon (LC) safety in research, China as far back as 90 initial stages in generation of last century just with the special sharp gas of Fu Laima Coase (FLMEXGAS) of oxyhydrogen (HO), the general gas of Japanese rosy clouds, (SHARPGAS) U.S., and the U.S. is triumphant rises-propane class industrial combustion gas and propane, propylene and LPG liquefied petroleum gas that the 2# additive disposes be used for industrial cutting gas.But owing to reasons such as performance quality, complex manufacturing, combustion gas cost height are difficult to promote the use of on a large scale in enterprise.
Sweet natural gas is the fuel that cleans most at present.Got into that the natural gas development of China begins to step into the motorway since 2006, will on the road of Chinese Economy Development, bring into play extremely important energy safeguard effect.Fundamental principle according to " greatly develop gas; the stable development industrial fuel, the optimum development natural gas power develops the gas chemical industry; try to explore new application according to qualifications "; Continue to optimize the downstream industry structure, pay attention to practicing thrift and the in-depth utilization, improve resource utilization and benefit to greatest extent." the energy development Eleventh Five-Year Plan " that the National Development and Reform Commission announced on the 10th proposes, and national gas production was wanted 920 billion cubic meters in 2010.The ratio that the Chinese planning demand of Sweet natural gas the Eleventh Five-Year Plan period accounts for energy demand will be doubled than 2005, reach 6% to 8%.The annual about billion cubic meter more than 400 of present Chinese natural gas consumption, the ratio that accounts for energy demand only 3%.Along with growth of requirement, the Eleventh Five-Year Plan period natural gas consumption will reach 1000 billion cubic meters every year, and Sweet natural gas (coal-seam gas) utilizes the field extensive.Along with the high speed development of China industry to functional Sweet natural gas at machinery manufacturing industry, metal processing, industrial fuel (generating, Industrial Stoves), aspects such as automobile fuel will have a big demand and development.Sweet natural gas (coal-seam gas) generating is in the starting stage, natural gas power, and industrial fuel (flame cutting) will be another big key areas of gas utilization.In order to satisfy development and national economy needs and requirement on environmental protection, Sweet natural gas (coal-seam gas) will be widely used in numerous areas as a kind of important energy.
Sweet natural gas (CH
4) warm up time when being used for metal cutting is long, the oxygen consumption is big in order to be merely 2000-2600 ℃ as its flame temperature in oxygen of cutting-welding gas, is difficult to cut big thick material, work efficiency is low, is difficult to substitute acetylene, propane, propylene, LPG liquefied petroleum gas comprehensively.Because Sweet natural gas is originally as gaseous state, general fluid additive is difficult to gasify and mixes the flame temperature that improves Sweet natural gas with it, changes its ignition quality.
Summary of the invention:
The purpose of this invention is to provide a kind of welding and cutting natural gas Synergistic additives; Its adopts cerium aluminium compound rare-earth catalytic activation principle and special organic chemistry material-mix in Sweet natural gas, to play and heats, combustion-supporting; Antiknock improves Sweet natural gas burned flame action of temperature in oxygen.It can be vaporized under certain pressure and mix with Sweet natural gas simultaneously, has improved the activity quotient index of Sweet natural gas, and Sweet natural gas incendiary temperature in oxygen can be reached about 3430 ℃, is in top standard in the industry.On functions of use, cut, weldering, roasting, flame plating can substitute acetylene fully, is specially adapted in gaseous fuel such as Sweet natural gas, use.
In order to solve the existing problem of background technology, the present invention adopts following technical scheme: its prescription consists of: ethanol 40-60%, THF 10-20%, sherwood oil 30-35%, cerium aluminium compound rare-earth catalyzer 5-6%, Dicyclopentadiene (DCPD) and iron 0.2-0.4%; Its preparation technology is: at first mix ethanol, sherwood oil subsequent use; In reaction kettle, add THF again, with stirring in Dicyclopentadiene (DCPD) and iron and the liquid cerium aluminium compound rare-earth catalyzer adding reaction kettle, all mix with above-mentioned mixed solution the dissolving back; Left standstill 4 hours after the lateral tap valve of reaction kettle is emitted clear liquid, pour into plastic barrel and get final product.
The present invention has following beneficial effect:
1, advance: it is superior in Sweet natural gas (coal-seam gas, biogas), to use its cutting property.Break through liquid additive and can not be added in the Sweet natural gas that flame temperature is lower than acetylene, propane, propylene, LPG liquefied petroleum gas when being used for cutting-welding gas with Sweet natural gas, on functions of use, can not substitute the key issue of acetylene, propane, propylene, LPG liquefied petroleum gas.
2, economy: be merely about 30% of acetylene with synthetic welding and cutting natural gas cost of the present invention, be merely about 55% of propane, propylene, liquefied petroleum gas welding gas.The unit oxygen-consumption is than acetylene low 15%.This is lower more than 70% than acetylene comprehensively to consume pneumatolytic, hangs down more than 55% than propane, propylene, liquefied petroleum gas welding gas.3 cubic metres of natural gas cutting gas after synergy of the present invention is synthetic are equal to 5 kilograms one bottle acetylene, are equal to 4.5 kilograms of propane, propylene, liquefied petroleum gas welding gas.
3, high efficiency: the steel plate aperture time shortens about 50% than acetylene, and cutting speed in feet per minute is than acetylene fast 40%.Fast 1.5 times than acetylene of the roasting school of No. 65 joist steel speed can be cut under water.
4, security limits of explosion scope is merely 1/10 of acetylene; Burning-point is higher 200 ℃ than acetylene: pressure is merely 1/7 of acetylene, not tempering.
5, quality: cutting property and quality are superior to acetylene and propane, propylene, LPG liquefied petroleum gas, the cutting any surface finish do not collapse limit, not oxidation, do not hang slag.
6, low-carbon environment-friendly: burning is thorough, no flue dust and hydrogen sulfide.The state basic policy that meets low-carbon environment-friendly.
Description of drawings:
Fig. 1 is that prescription of the present invention is formed synoptic diagram.
Embodiment:
With reference to Fig. 1, this embodiment adopts following technical scheme: its prescription consists of: ethanol 42%, THF 20%, sherwood oil 32%, cerium aluminium compound rare-earth catalyzer 5.67%, Dicyclopentadiene (DCPD) and iron 0.33%; Its preparation technology is: at first mix ethanol, sherwood oil subsequent use; In reaction kettle, add THF again, with stirring in Dicyclopentadiene (DCPD) and iron and the liquid cerium aluminium compound rare-earth catalyzer adding reaction kettle, all mix with above-mentioned mixed solution the dissolving back; Left standstill 4 hours after the lateral tap valve of reaction kettle is emitted clear liquid, pour into plastic barrel and get final product.
This embodiment has following characteristic:
1. fundamentally having solved for a long time, liquid additive can not be added in the Sweet natural gas or add the unconspicuous root problem of back effect.
2. having solved welding and cutting natural gas does not have can not vaporizing fully synchronously with liquid additive of solution to mix in for a long time.
3. flame temperature is lower than acetylene, propane, propylene, LPG liquefied petroleum gas when having solved Sweet natural gas and being used for cutting-welding gas, on functions of use, can not substitute the key issue of acetylene, propane, propylene, LPG liquefied petroleum gas.
4. mother-qi adopts extensively, in Sweet natural gas, natural gas liquids, coal-seam gas, biogas, can use, and the purity of mother-qi is not had too high requirement.The validity period of Synergistic additives is long, and transportation stores and use all very convenient safety.Any in the industry at present additive does not all reach this level.
Claims (2)
1. the welding and cutting natural gas Synergistic additives is characterized in that its prescription consists of: ethanol 40-60%, THF 10-20%, sherwood oil 30-35%, cerium aluminium compound rare-earth catalyzer 5-6%, Dicyclopentadiene (DCPD) and iron 0.2-0.4%.
2. welding and cutting natural gas Synergistic additives according to claim 1 is characterized in that its preparation technology is: at first mix ethanol, sherwood oil subsequent use; In reaction kettle, add THF again, with stirring in Dicyclopentadiene (DCPD) and iron and the liquid cerium aluminium compound rare-earth catalyzer adding reaction kettle, all mix with above-mentioned mixed solution the dissolving back; Left standstill 4 hours after the lateral tap valve of reaction kettle is emitted clear liquid, pour into plastic barrel and get final product.
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| Application Number | Priority Date | Filing Date | Title |
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| CN2011100216252A CN102604699A (en) | 2011-01-19 | 2011-01-19 | Synergistic additive of natural-gas as welding and cutting gas |
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| CN2011100216252A CN102604699A (en) | 2011-01-19 | 2011-01-19 | Synergistic additive of natural-gas as welding and cutting gas |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160348A (en) * | 2013-03-18 | 2013-06-19 | 四川润德燃气有限责任公司 | Light paraffin fuel gas rare earth catalytic synergist, as well as preparation method and application thereof |
| CN103320191A (en) * | 2013-06-25 | 2013-09-25 | 苍溪县大通天然气投资有限公司 | Natural gas gaining agent and preparation method thereof |
| CN104359122A (en) * | 2014-11-14 | 2015-02-18 | 高赞松 | Application of novel pipeline industrial gas in metal cutting and kiln heating |
| JP2015513571A (en) * | 2013-04-01 | 2015-05-14 | グィゾウ ナス ニュー エネルギーテクノロジー カンパニー リミテッドＧｕｉｚｈｏｕ Ｎａｓ Ｎｅｗ Ｅｎｅｒｇｙ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ | Highly efficient and energy-saving natural gas additive and its application |
| CN108707493A (en) * | 2018-05-25 | 2018-10-26 | 包头稀土研究院 | Rare earth combustion adjuvant and preparation method thereof for combustion of natural gas |
| CN112266803A (en) * | 2020-11-03 | 2021-01-26 | 河北濡春新能源集团有限公司 | Natural gas welding and cutting rare earth nano polymerization additive |
| CN113528204A (en) * | 2021-07-15 | 2021-10-22 | 山东路盛源新能源科技有限公司 | High-flash ignition gas additive and preparation method thereof |
-
2011
- 2011-01-19 CN CN2011100216252A patent/CN102604699A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103160348A (en) * | 2013-03-18 | 2013-06-19 | 四川润德燃气有限责任公司 | Light paraffin fuel gas rare earth catalytic synergist, as well as preparation method and application thereof |
| CN103160348B (en) * | 2013-03-18 | 2016-04-13 | 四川润德燃气有限责任公司 | A kind of light paraffins fuel gas rare earth catalyst synergist and preparation method thereof and application |
| JP2015513571A (en) * | 2013-04-01 | 2015-05-14 | グィゾウ ナス ニュー エネルギーテクノロジー カンパニー リミテッドＧｕｉｚｈｏｕ Ｎａｓ Ｎｅｗ Ｅｎｅｒｇｙ Ｔｅｃｈｎｏｌｏｇｙ Ｃｏ．，Ｌｔｄ | Highly efficient and energy-saving natural gas additive and its application |
| CN103320191A (en) * | 2013-06-25 | 2013-09-25 | 苍溪县大通天然气投资有限公司 | Natural gas gaining agent and preparation method thereof |
| CN103320191B (en) * | 2013-06-25 | 2014-11-26 | 苍溪县大通天然气投资有限公司 | Natural gas gaining agent and preparation method thereof |
| CN104359122A (en) * | 2014-11-14 | 2015-02-18 | 高赞松 | Application of novel pipeline industrial gas in metal cutting and kiln heating |
| CN108707493A (en) * | 2018-05-25 | 2018-10-26 | 包头稀土研究院 | Rare earth combustion adjuvant and preparation method thereof for combustion of natural gas |
| CN112266803A (en) * | 2020-11-03 | 2021-01-26 | 河北濡春新能源集团有限公司 | Natural gas welding and cutting rare earth nano polymerization additive |
| CN113528204A (en) * | 2021-07-15 | 2021-10-22 | 山东路盛源新能源科技有限公司 | High-flash ignition gas additive and preparation method thereof |
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Application publication date: 20120725 |