CA1075466A - Method for storing a fuel gas - Google Patents
Method for storing a fuel gasInfo
- Publication number
- CA1075466A CA1075466A CA256,923A CA256923A CA1075466A CA 1075466 A CA1075466 A CA 1075466A CA 256923 A CA256923 A CA 256923A CA 1075466 A CA1075466 A CA 1075466A
- Authority
- CA
- Canada
- Prior art keywords
- mixture
- mol
- ethylene
- acetylene
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C11/00—Use of gas-solvents or gas-sorbents in vessels
- F17C11/002—Use of gas-solvents or gas-sorbents in vessels for acetylene
Abstract
ABSTRACT OF THE DISCLOSURE
A method of storing a fuel gas, consisting of a combustible mixture formed of 15 to 25 mol % acetylene and 85 to 75 mol % ethylene, 15 disclosed. The mixture is stored in a porous material in compressed form, under a pressure of from 15 to 110 bar and at a temperature of -30 to +35°C. The combustible mixture kept in this way is suitable for use in welding, cutting, bronze welding and brazing.
A method of storing a fuel gas, consisting of a combustible mixture formed of 15 to 25 mol % acetylene and 85 to 75 mol % ethylene, 15 disclosed. The mixture is stored in a porous material in compressed form, under a pressure of from 15 to 110 bar and at a temperature of -30 to +35°C. The combustible mixture kept in this way is suitable for use in welding, cutting, bronze welding and brazing.
Description
~g~7~jj40~6 BACKGROUND OF THE INVENTION
This invention relates to a method of storing a fuel gas for blowpipes and bu~ners, more partlcularly but not exclusively for use in welding, cutting, bronze welding and brazing.
It has been customary for more than half a century to use acetylene in this technical field. However, the nature of acetylene is such that it is very dangerous to keep compressed in the natural state and currently it is stored after having been compressed and dissolved in a solvent such as acetone, in a porous material. The porous substances filling bottles of ac~tylene have the purpose of-stabili2ing the solution of acetylene contained in these vessels. This stabilisation is obtained principally with regard to the liquid phase.
A fuel gas for welding and cutting whiçh has recently been proposed is obtained by dissolving under high pressure a mixture of three gaseous constituents consisting of 60 to 85% acetylene, S to 30% ethylene and 5 to 20% propylene in acetone impregnated in a porous material.
Likewise a fuel gas has been described wh~ch is obtained by dissolving a mixture consisting of 60 to 80% acetylene and 40 to 20% ethylene in acetone impregnated in a porous material under high pressure. A further mixture has also been advocated which is obtained by dissolving 65 to 90% acetylene and 35 to 10% propylene under high pressure in a solvent such as acetone, , .
~37~
toluene, xylene and mixtures of any two or all -three of those liquids, impreynated in a porous material.
~ lowever, all these methods have the disaclvan-tage that the fuel yas is stored anclrnust be drawn off in -the presence of solvent.
In con-trast the use of a mixture of acetylene and ethylene has been considered, avoiding the risks of explosion and allow-ing a cornbustion tempera-ture to be obtained which is sufficiently high to effect welding and oxycut-ting operations. rrhese com-bustible liquid compositlons containing acetylene in the ratioof 40 to 90 mol % are kept or transported at a temperature of -40C.
This method o-f storage and transport, solely in the cryogenic state, involves heavy capital and operational costs, due to the low temperatures used, and limits the duration of preservatlon.
SUMMARY OF THE INVENTION
A method has now been found for storing an acetylene-ethylene mixture which alleviates the various disadvantages hitherto associated with filling, storing, distribution and use. According to the present invention, there is provided a method of storing a combustible mixture for blowpipes and burners, more particularly applicable to weldiny, cutting, bronze welding, and brazing, comprising the steps of preparing a cornbustible mixture consisting of 15 to 25 mol % acetylene and 85 to 75 mol % ethylene, and storing said mix-ture in a 1~75~
porous substance in compressed form, in the absence of solvent, by introducing the mixture into a pressure-resistant metal vessel filled with said porous mass, and maintaining the mixture in the vessel at a pressure of 15 to 110 bars and a temperature of from -30 to -~35C.
The method of the invention is an economical, simple and fas-t process. This method is effected by simple compression without ex-ternal addition of re-frigerants. It is an easy technique for it does not have recourse to the phenomenon of dissolving in a stabilising solvent and consequen-tly the filling time is reduced and the operations of weighting the bottles, checking the quantity of gas remaining in the bo-ttles and of monitoring the quantity of solvent are obviated, only a standard measure of the pressure is necessary when the tempera-ture is known.
The method of storage of this invention allows usage without special precautions in all climates, in both cold and hot countries. The operations of welding and cutting can be realized with high, and even very high, ra-tes of flow without restriction as there is no risk of entraining stabilisation solvent.
The mixture conditioned in accordance with the invention is stable under pressure and allows operations to be conducted under pressure without any decomposition, for example at the time of distribution under pressure into piping or of feeding certain special blowpipes under pressure.
The special conditions of storage of the combustible mixture ,~ - ~1 -~.
~: ,. ;
1~75~66 and the choice of the proportions of its constituents allows, at any moment during tapping, a combustible gas of practically uniform composition to be drawn off, whatever the temperature~
This is ~ue to the particularly ~udicious and critical choice of the composition of tlle mixture, associated with the conditions of storage and those non-apparent conditions of the stabilizing agent.
DESCRIPTION OF TIIE PREFERRED EMBODIMENTS
When the storage temperature is lower than about ~10C
the mixture is partly liquefled and the proportion of the liquid fraction in relation to the gaseous fraction is a function of the storage temperature~
Mixtures formed of about 20 mol % acetylene and about 80 mol % ethylene are particularly advantageous.
It has been discovered in completely unexpected manner that the storage of the combustible acetylene-ethylene mixture in the chosen proportions, under conditions of pressure and temperature withln the limits close to the pseudo-critical point (about 54 bar and about 14C) and of azeotropy in a porous substance in the absence of any solvent, perfectly meets all the requirements of stability and safety~
- The combustible mixture may be stored in a metallic vessel or bottle of pressure-res~stant sheet steel, filled with a porous material of a type currently used, such as silicocalcareous monolithic substances, pulverulent substances .
~ - 5 54~ .
includlng charcoal powder ancl infusorial earth and other -ingredients, porous substances based on zinc oxychlor~de cement enclosing porous charcoal and substances based on alumlnium slag. The capacity of the bottle is not limited by the method of the invention; lt may be for example between 1 litre and 160 litres.
The composition of the combustible mixture gives every guarantee of safety. Acetylene explodes under an absolute pressure of 1.4 ~ar, but when it is associated with ethylene in the chosen proportlons the upper pressure limit for explosion is much higher. For example a gaseous mixture of 25 mol % acetylene and 75 mol % ethylene has a maximum pressure before explosion of 15 bar ancl a gaseous mixture -of 20 mol % acetylen~ and 80 rnol % ethylene has an upper pressure limit of 30 barO
The combustible mixture is particularly suitable for use in welding, bronze welding and brazing. Comparative tests, made by way of non-limiting examples, between acetylene alone and a mixture of approx. 20 mol % acetylene and 80 mol %
ethylene, show that the welds produced are of equivalent quality in both cases. The same metallurgical results are obtained as with acetylene, with easy flame control and a practical consumption ratio : heating oxygen consumption over fuel -consumption, in volume, is in the range of 1.7 to 1.8. These estlmates are equally valid f~r bronze welding and braæingO
. ' ' , - , , - , .
. ~ . . ' ' ',:
~5466 Comparative tests in oxycutting, made by way of non--limiting --- example, between acetylene alone and the same combustible mixture as before of 20 mol % acetylene and 80 mol % ethylene show the high suitability of the mixture in this technical field. The tests werc begun with a cutting oxygen pressure of 3 bar with a normal distance between the cutting head and the sheet metal of 10 millimetre thickness. Tests 1 and 3 correspond to acetylene alone while tests 2 and 4 to acetylene 20/ethylene 80 mol ~. In each test the pressures of the fuel and of the heating oxygen P as measured were expressed in bars, as also the flow rates of the fuel and the heating oxygen Q
expressed in litres per hour; "a" indicates the ratio o~ ¦
-consumption in volume (heating oxygen consumption/fuel consumption). The cuttlng speeds are expressed in metres/hour over 10 to 15 minutes and the starting time in secondsc .
: ~est : Fuel : 2 heatin9 : - : Speed : Starting :` !
Cut Time :. . .
: 1 ~ P = 0.5 bar: P = 1.5 bar: a : 47m~h : : -~.2 to ~Os : :- Q = 300 l~h: Q = 350 1/h: : 90m/h : :
-- ..
Table continued overleaf ~9 .~
e ~759~6
This invention relates to a method of storing a fuel gas for blowpipes and bu~ners, more partlcularly but not exclusively for use in welding, cutting, bronze welding and brazing.
It has been customary for more than half a century to use acetylene in this technical field. However, the nature of acetylene is such that it is very dangerous to keep compressed in the natural state and currently it is stored after having been compressed and dissolved in a solvent such as acetone, in a porous material. The porous substances filling bottles of ac~tylene have the purpose of-stabili2ing the solution of acetylene contained in these vessels. This stabilisation is obtained principally with regard to the liquid phase.
A fuel gas for welding and cutting whiçh has recently been proposed is obtained by dissolving under high pressure a mixture of three gaseous constituents consisting of 60 to 85% acetylene, S to 30% ethylene and 5 to 20% propylene in acetone impregnated in a porous material.
Likewise a fuel gas has been described wh~ch is obtained by dissolving a mixture consisting of 60 to 80% acetylene and 40 to 20% ethylene in acetone impregnated in a porous material under high pressure. A further mixture has also been advocated which is obtained by dissolving 65 to 90% acetylene and 35 to 10% propylene under high pressure in a solvent such as acetone, , .
~37~
toluene, xylene and mixtures of any two or all -three of those liquids, impreynated in a porous material.
~ lowever, all these methods have the disaclvan-tage that the fuel yas is stored anclrnust be drawn off in -the presence of solvent.
In con-trast the use of a mixture of acetylene and ethylene has been considered, avoiding the risks of explosion and allow-ing a cornbustion tempera-ture to be obtained which is sufficiently high to effect welding and oxycut-ting operations. rrhese com-bustible liquid compositlons containing acetylene in the ratioof 40 to 90 mol % are kept or transported at a temperature of -40C.
This method o-f storage and transport, solely in the cryogenic state, involves heavy capital and operational costs, due to the low temperatures used, and limits the duration of preservatlon.
SUMMARY OF THE INVENTION
A method has now been found for storing an acetylene-ethylene mixture which alleviates the various disadvantages hitherto associated with filling, storing, distribution and use. According to the present invention, there is provided a method of storing a combustible mixture for blowpipes and burners, more particularly applicable to weldiny, cutting, bronze welding, and brazing, comprising the steps of preparing a cornbustible mixture consisting of 15 to 25 mol % acetylene and 85 to 75 mol % ethylene, and storing said mix-ture in a 1~75~
porous substance in compressed form, in the absence of solvent, by introducing the mixture into a pressure-resistant metal vessel filled with said porous mass, and maintaining the mixture in the vessel at a pressure of 15 to 110 bars and a temperature of from -30 to -~35C.
The method of the invention is an economical, simple and fas-t process. This method is effected by simple compression without ex-ternal addition of re-frigerants. It is an easy technique for it does not have recourse to the phenomenon of dissolving in a stabilising solvent and consequen-tly the filling time is reduced and the operations of weighting the bottles, checking the quantity of gas remaining in the bo-ttles and of monitoring the quantity of solvent are obviated, only a standard measure of the pressure is necessary when the tempera-ture is known.
The method of storage of this invention allows usage without special precautions in all climates, in both cold and hot countries. The operations of welding and cutting can be realized with high, and even very high, ra-tes of flow without restriction as there is no risk of entraining stabilisation solvent.
The mixture conditioned in accordance with the invention is stable under pressure and allows operations to be conducted under pressure without any decomposition, for example at the time of distribution under pressure into piping or of feeding certain special blowpipes under pressure.
The special conditions of storage of the combustible mixture ,~ - ~1 -~.
~: ,. ;
1~75~66 and the choice of the proportions of its constituents allows, at any moment during tapping, a combustible gas of practically uniform composition to be drawn off, whatever the temperature~
This is ~ue to the particularly ~udicious and critical choice of the composition of tlle mixture, associated with the conditions of storage and those non-apparent conditions of the stabilizing agent.
DESCRIPTION OF TIIE PREFERRED EMBODIMENTS
When the storage temperature is lower than about ~10C
the mixture is partly liquefled and the proportion of the liquid fraction in relation to the gaseous fraction is a function of the storage temperature~
Mixtures formed of about 20 mol % acetylene and about 80 mol % ethylene are particularly advantageous.
It has been discovered in completely unexpected manner that the storage of the combustible acetylene-ethylene mixture in the chosen proportions, under conditions of pressure and temperature withln the limits close to the pseudo-critical point (about 54 bar and about 14C) and of azeotropy in a porous substance in the absence of any solvent, perfectly meets all the requirements of stability and safety~
- The combustible mixture may be stored in a metallic vessel or bottle of pressure-res~stant sheet steel, filled with a porous material of a type currently used, such as silicocalcareous monolithic substances, pulverulent substances .
~ - 5 54~ .
includlng charcoal powder ancl infusorial earth and other -ingredients, porous substances based on zinc oxychlor~de cement enclosing porous charcoal and substances based on alumlnium slag. The capacity of the bottle is not limited by the method of the invention; lt may be for example between 1 litre and 160 litres.
The composition of the combustible mixture gives every guarantee of safety. Acetylene explodes under an absolute pressure of 1.4 ~ar, but when it is associated with ethylene in the chosen proportlons the upper pressure limit for explosion is much higher. For example a gaseous mixture of 25 mol % acetylene and 75 mol % ethylene has a maximum pressure before explosion of 15 bar ancl a gaseous mixture -of 20 mol % acetylen~ and 80 rnol % ethylene has an upper pressure limit of 30 barO
The combustible mixture is particularly suitable for use in welding, bronze welding and brazing. Comparative tests, made by way of non-limiting examples, between acetylene alone and a mixture of approx. 20 mol % acetylene and 80 mol %
ethylene, show that the welds produced are of equivalent quality in both cases. The same metallurgical results are obtained as with acetylene, with easy flame control and a practical consumption ratio : heating oxygen consumption over fuel -consumption, in volume, is in the range of 1.7 to 1.8. These estlmates are equally valid f~r bronze welding and braæingO
. ' ' , - , , - , .
. ~ . . ' ' ',:
~5466 Comparative tests in oxycutting, made by way of non--limiting --- example, between acetylene alone and the same combustible mixture as before of 20 mol % acetylene and 80 mol % ethylene show the high suitability of the mixture in this technical field. The tests werc begun with a cutting oxygen pressure of 3 bar with a normal distance between the cutting head and the sheet metal of 10 millimetre thickness. Tests 1 and 3 correspond to acetylene alone while tests 2 and 4 to acetylene 20/ethylene 80 mol ~. In each test the pressures of the fuel and of the heating oxygen P as measured were expressed in bars, as also the flow rates of the fuel and the heating oxygen Q
expressed in litres per hour; "a" indicates the ratio o~ ¦
-consumption in volume (heating oxygen consumption/fuel consumption). The cuttlng speeds are expressed in metres/hour over 10 to 15 minutes and the starting time in secondsc .
: ~est : Fuel : 2 heatin9 : - : Speed : Starting :` !
Cut Time :. . .
: 1 ~ P = 0.5 bar: P = 1.5 bar: a : 47m~h : : -~.2 to ~Os : :- Q = 300 l~h: Q = 350 1/h: : 90m/h : :
-- ..
Table continued overleaf ~9 .~
e ~759~6
2 : P = 005 bar: P = 1~5 bar: : 47m/h ` 1.8 to 20s : : Q = 22g 1/h: Q = 425 1/h: : 90m/h .... ~ . . . . .
: 3 : P = 0.3 bar: P = 1.5 bar: : ~6m/h ~ :
1.1 ClOs : : 4 - ~20 l~h: Q - 480 l~h:
:
: 4 : P = 0.3 bar: P = 1.5 bar: : 46m/h 1.8 ~lOs o : Q = 3~0 1/h: Q = 600 1/h: : : :
, It was established that the starting times are correct and the oxycutting speeds identical~ with good cutting surfaces being obtained, when the acetylene/ethylene mixture is used; only the ratio of consumption of the mixture is slightly higher than that of acetylene alone.
~ urther comparative tests were carried out to provide information on the characterlstics of blowpipe flames with acetylene on the one hand and a mixture of 21 ~ol % acetylene and 79 mol % ethylene on the other hand.
The-flame temperatures ~ in C are calculated; the ratio of consumption is indicated by "a" as previously; and the strength R of the fuels used in Table 2 below is as given by the Journal ~'Souder" no. 118, September 1973, page 24. The blowout flow rates "S" in litres/hour have been measured and this term _ 8 ' ,.
i~ ' '' ~75~6~
indicates the weakest of the flow rates at which the flame is maintained on the stationary blowplpe but is extingusihed if the blowpipe moves. The ~lowout speeds "V" ln metres/second are calculated according to the dimensions of the nozzles and the rates of flow takin~ lnto consideration the fact that the flows are laminar. The heat ~ransfers T in kilo-calories per hour are measured 2 millimetres downstream of the cone and for a total ~aseous rate of flow equal to 9/10 of the blowout flow rate, flow rate measured almost 2 % in relative value. This measure is made on an interior surface at 1,100 C by means of a thermal fluxmeter. The dimenslons of the nozzles of the blowpipes are given ln millimetres.
.... ... , . . _ _ ~ _ _ _ , , ................ _ _ , : Fuel : R : a : : Nozzle : S : V : T
9C mm l/h mJs m ThJh ' : :
~ . . . . . . . .
0O6 : 196 ~i 192.5 : 120 : Acetylene : 2.27 : 1.1: 3109 : 0.82 : 372 ~ 195 : 149 :
~ 1.04 : 473 : 15~ : 14~ :
O
: : : : : 0.6 ~ 116 : 113 : 103 : `
: Mixture : 1.33 :2.18: 2962 : 0.82 : 110 : 57 : 57 :
.
Table contlnued overleaf.
: . _ 9 _ ~.
: I
54L~
: 1.0~ : 27t3 : 90 : 136 . : : : : : 1.18 : 493 : 125 : 167 :
: : : : 1. ~ : 820 : 147 : 191 ~ 1.6 : 1155 : 159 : 191 :
: Mixture : 1.65 : 1.75: 2 929 : 0.6 : 118 : 115 : 85 0.82 : 80 : ~2 : 27 : : : : : 1.0~ : 28~ : 92 : 119 : : : : : 1.18 : ~0 : 122 : 152 : : : : : 1.4 : 813 : 1~6 : 163 ~ : 1.6 : 118~ : 163 : 163 _ . :
. .
',:, , ~ ' " ' ' ' .
- . - 10 - ' .
.~' '' .
.
, ' ' ,
: 3 : P = 0.3 bar: P = 1.5 bar: : ~6m/h ~ :
1.1 ClOs : : 4 - ~20 l~h: Q - 480 l~h:
:
: 4 : P = 0.3 bar: P = 1.5 bar: : 46m/h 1.8 ~lOs o : Q = 3~0 1/h: Q = 600 1/h: : : :
, It was established that the starting times are correct and the oxycutting speeds identical~ with good cutting surfaces being obtained, when the acetylene/ethylene mixture is used; only the ratio of consumption of the mixture is slightly higher than that of acetylene alone.
~ urther comparative tests were carried out to provide information on the characterlstics of blowpipe flames with acetylene on the one hand and a mixture of 21 ~ol % acetylene and 79 mol % ethylene on the other hand.
The-flame temperatures ~ in C are calculated; the ratio of consumption is indicated by "a" as previously; and the strength R of the fuels used in Table 2 below is as given by the Journal ~'Souder" no. 118, September 1973, page 24. The blowout flow rates "S" in litres/hour have been measured and this term _ 8 ' ,.
i~ ' '' ~75~6~
indicates the weakest of the flow rates at which the flame is maintained on the stationary blowplpe but is extingusihed if the blowpipe moves. The ~lowout speeds "V" ln metres/second are calculated according to the dimensions of the nozzles and the rates of flow takin~ lnto consideration the fact that the flows are laminar. The heat ~ransfers T in kilo-calories per hour are measured 2 millimetres downstream of the cone and for a total ~aseous rate of flow equal to 9/10 of the blowout flow rate, flow rate measured almost 2 % in relative value. This measure is made on an interior surface at 1,100 C by means of a thermal fluxmeter. The dimenslons of the nozzles of the blowpipes are given ln millimetres.
.... ... , . . _ _ ~ _ _ _ , , ................ _ _ , : Fuel : R : a : : Nozzle : S : V : T
9C mm l/h mJs m ThJh ' : :
~ . . . . . . . .
0O6 : 196 ~i 192.5 : 120 : Acetylene : 2.27 : 1.1: 3109 : 0.82 : 372 ~ 195 : 149 :
~ 1.04 : 473 : 15~ : 14~ :
O
: : : : : 0.6 ~ 116 : 113 : 103 : `
: Mixture : 1.33 :2.18: 2962 : 0.82 : 110 : 57 : 57 :
.
Table contlnued overleaf.
: . _ 9 _ ~.
: I
54L~
: 1.0~ : 27t3 : 90 : 136 . : : : : : 1.18 : 493 : 125 : 167 :
: : : : 1. ~ : 820 : 147 : 191 ~ 1.6 : 1155 : 159 : 191 :
: Mixture : 1.65 : 1.75: 2 929 : 0.6 : 118 : 115 : 85 0.82 : 80 : ~2 : 27 : : : : : 1.0~ : 28~ : 92 : 119 : : : : : 1.18 : ~0 : 122 : 152 : : : : : 1.4 : 813 : 1~6 : 163 ~ : 1.6 : 118~ : 163 : 163 _ . :
. .
',:, , ~ ' " ' ' ' .
- . - 10 - ' .
.~' '' .
.
, ' ' ,
Claims (11)
1. A method for storing a combustible mixture for blowpipes and burners, more particularly applicable to welding, cutting, bronze welding, and brazing, comprising the steps of:
preparing a combustible mixture consisting of 15-25 mol % acetylene and 85-75 mol % ethylene; and storing said mixture in a porous mass in compressed form, in the absence of solvent, by introducing the mixture into a pressure-resistant metal vessel filled with said porous mass, and maintaining the mixture in the vessel at a pressure of 15 to 110 bars and a temperature of -30 to +35°C.
preparing a combustible mixture consisting of 15-25 mol % acetylene and 85-75 mol % ethylene; and storing said mixture in a porous mass in compressed form, in the absence of solvent, by introducing the mixture into a pressure-resistant metal vessel filled with said porous mass, and maintaining the mixture in the vessel at a pressure of 15 to 110 bars and a temperature of -30 to +35°C.
2. A method according to claim 1, wherein the mixture is stored at a temperature lower than about +10°C, the mixture being partly liquefied, the proportion of the liquid fraction in relation to the gaseous fraction being a function of the tempera-ture.
3. A method according to claim 1, wherein the combustible mixture consists of about 20 mol % ethylene and about 80 mol %
ethylene.
ethylene.
4. A method according to claim 1, wherein the combustible mixture is stored in a metal vessel formed of pressure-resistant sheet steel.
5. A method according to claim 1, wherein the metal vessel is filled with a porous material selected from the group consist-ing of silicocalcareous monolithic substances, pulverulent substances including charcoal powder and infusorial earth and other ingredients, porous substances based on zinc oxychloride cement enclosing porous charcoal and substances based on aluminium slag.
6. A container of combustible gas which allows a sub-stantially uniform composition to be drawn off regardless of ambient temperature, comprising:
a pressure-resistant vessel, filled with a porous mass, having therein a mixture of 15-25 mol % acetylene and 85-75 mol % ethylene, in the absence of solvent.
a pressure-resistant vessel, filled with a porous mass, having therein a mixture of 15-25 mol % acetylene and 85-75 mol % ethylene, in the absence of solvent.
7. A container of combustible gas in accordance with claim 6, wherein said mixture of acetylene and ethylene in said vessel is at a pressure of 15-80 bars and a temperature of -30 to +35°C.
8. A container of combustible gas in accordance with claim 6, wherein said mixture of acetylene and ethylene is stored at a temperature lower than about +10°C, the mixture being partly liquefied, the proportion of the liquid fraction in relation to the gaseous fraction being a function of the temperature.
9. A container of combustible gas in accordance with claim 6, wherein said mixture consists of about 20 mol % acetylene and about 80 mol % ethylene.
10. A container of combustible gas in accordance with claim 6, wherein said pressure resistant-vessel is formed of pressure-resistant sheet steel.
11. A container of combustible gas in accordance with claim 6, wherein said porous mass is selected from the group consisting of silicocalcareous monolithic substance, pulverulent substances including charcoal powder and infusorial earth and other ingred-ients, porous substances based on zinc oxychloride cement enclos-ing porous charcoal and substances based on aluminium slag.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR7522666A FR2319078A1 (en) | 1975-07-21 | 1975-07-21 | Acetylene and ethylene fuel gas mixt. stored under press. - in porous carrier, for soldering, cutting or brasing with blow lamp or burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1075466A true CA1075466A (en) | 1980-04-15 |
Family
ID=9158132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA256,923A Expired CA1075466A (en) | 1975-07-21 | 1976-07-14 | Method for storing a fuel gas |
Country Status (9)
| Country | Link |
|---|---|
| JP (1) | JPS5213502A (en) |
| BE (1) | BE844359A (en) |
| CA (1) | CA1075466A (en) |
| DE (1) | DE2631763A1 (en) |
| DK (1) | DK327376A (en) |
| FR (1) | FR2319078A1 (en) |
| IT (1) | IT1061849B (en) |
| NL (1) | NL7608045A (en) |
| SE (1) | SE420017B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59196776U (en) * | 1983-06-17 | 1984-12-27 | 自動車機器株式会社 | Check valve with built-in hose |
| JPH0234558Y2 (en) * | 1986-09-08 | 1990-09-17 | ||
| DE4103504A1 (en) * | 1990-04-20 | 1991-10-24 | Bergwerksverband Gmbh | REACTOR CHAMBER DOOR FOR LARGE-SCALE COOKING REACTOR |
| DE19623582A1 (en) * | 1996-06-13 | 1997-12-18 | Messer Griesheim Gmbh | Process for filling a compressed gas bottle with ethene |
| FR2909385A1 (en) * | 2006-12-05 | 2008-06-06 | Air Liquide | Gaseous fuel mixture, useful for heat treatment operation comprising gas cutting, heat reclaim and flame heating and flame surfacing, comprises acetylene and ethylene |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE200930C (en) * | ||||
| DE1254609C2 (en) * | 1963-02-08 | 1975-06-19 | L'Air Liquide, Societe Anonyme pour l'Etude et !'Exploitation des Procedes Georges Claude, Paris | Process for the preparation of a silica-limestone mass of high porosity |
-
1975
- 1975-07-21 FR FR7522666A patent/FR2319078A1/en active Granted
-
1976
- 1976-06-30 IT IT2488676A patent/IT1061849B/en active
- 1976-07-14 CA CA256,923A patent/CA1075466A/en not_active Expired
- 1976-07-15 DE DE19762631763 patent/DE2631763A1/en active Granted
- 1976-07-20 SE SE7608247A patent/SE420017B/en not_active IP Right Cessation
- 1976-07-20 NL NL7608045A patent/NL7608045A/en not_active Application Discontinuation
- 1976-07-20 DK DK327376A patent/DK327376A/en not_active Application Discontinuation
- 1976-07-20 BE BE169104A patent/BE844359A/en not_active IP Right Cessation
- 1976-07-21 JP JP8608676A patent/JPS5213502A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| DE2631763A1 (en) | 1977-02-10 |
| DE2631763C2 (en) | 1987-06-11 |
| BE844359A (en) | 1977-01-20 |
| JPS5213502A (en) | 1977-02-01 |
| FR2319078B1 (en) | 1977-12-16 |
| NL7608045A (en) | 1977-01-25 |
| JPS5654355B2 (en) | 1981-12-24 |
| DK327376A (en) | 1977-01-22 |
| SE420017B (en) | 1981-09-07 |
| FR2319078A1 (en) | 1977-02-18 |
| SE7608247L (en) | 1977-01-22 |
| IT1061849B (en) | 1983-04-30 |
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