IL22275A - Production of gaseous mixtures containing acetylene and ethylene - Google Patents

Production of gaseous mixtures containing acetylene and ethylene

Info

Publication number
IL22275A
IL22275A IL22275A IL2227564A IL22275A IL 22275 A IL22275 A IL 22275A IL 22275 A IL22275 A IL 22275A IL 2227564 A IL2227564 A IL 2227564A IL 22275 A IL22275 A IL 22275A
Authority
IL
Israel
Prior art keywords
electrodes
curvilineal
arc
movable
movement
Prior art date
Application number
IL22275A
Original Assignee
Prod Azotes Soc D
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Prod Azotes Soc D filed Critical Prod Azotes Soc D
Publication of IL22275A publication Critical patent/IL22275A/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C4/00Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms
    • C07C4/02Preparation of hydrocarbons from hydrocarbons containing a larger number of carbon atoms by cracking a single hydrocarbon or a mixture of individually defined hydrocarbons or a normally gaseous hydrocarbon fraction
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J19/00Chemical, physical or physico-chemical processes in general; Their relevant apparatus
    • B01J19/08Processes employing the direct application of electric or wave energy, or particle radiation; Apparatus therefor
    • CCHEMISTRY; METALLURGY
    • C10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
    • C10GCRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION; RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, OR GASES; REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS; REFORMING OF NAPHTHA; MINERAL WAXES
    • C10G15/00Cracking of hydrocarbon oils by electric means, electromagnetic or mechanical vibrations, by particle radiation or with gases superheated in electric arcs
    • C10G15/08Cracking of hydrocarbon oils by electric means, electromagnetic or mechanical vibrations, by particle radiation or with gases superheated in electric arcs by electric means or by electromagnetic or mechanical vibrations

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Electromagnetism (AREA)
  • Physics & Mathematics (AREA)
  • General Chemical & Material Sciences (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)

Description

endowed with a rec.tilineal alternating motion which is directed along the longitudinal axis thereof and which is · controlled, for example, "by means of a crank and connecting-rod mechanism or the like.
In point of fact, the industrial development of the method which has just been summarized has led to the discovery that, if the rectilineal alternating motion as initially, contemplated is replaced by a curvilineal alternating motion of each movable electrode, it is thereby made possible, not only to achieve the optimum operating conditions which are a distinctive feature of the Patent Application hereinabove referred-to, but also to improve the practical application of this method to a marked extent.
The utilization of the above-mentioned curvilineal alternating motion has in fact proved to be particularly advantageous, especially for the following reasons % a) in the casein which alternating current is employed, the alternate utilization of the two current polarities is more readily permitted by a curvilineal alternating motion than by a rectilineal alternating motion; b) curvilineal alternating motion offers a particularly easy solution to the problem of fluid-tightness of the' reaction tank at the level of the mechanism which controls the travel of the movable electrodes.
The present invention therefore has for its object an .improvement which is made in the method described in the above-mentioned Patent Application and which essential- · ly consists in imparting to the movable electrodes a cur which are contemplated in the Patent Application hereinabove referred-to.
In the practical application of the aforesaid improvement, the. curvilineal alternating motion of the system which carries the movable electrodes can be -produced especially by means of a_ pendulum arrangement or by means of an eccentric mechanism.
Forms of execution of each of these' two types of 'drive systems have been illustrated in the accompanying drawings by w.ay of example only and not in any limiting sense. In these drawings s - Fig.. 1 is a diagrammatic cross-section of an apparatus in which the curvilineal alternating motion of the movable electrodes is produced by means of a pendulum; - Fig. 2 is a similar view of an apparatus in which the curvilineal alternating motion of the electrodes is produced by means of an eccentric mechanism.
In the form of embodiment of Fig.1 , the apparatus comprises a reaction tank 1 which is filled with the liquid hydrocarbon to be processed. There are shown at 2 and 2' two stationary electrodes which are disposed in symmetrical relation and penetrate at an oblique angle into the · tank 1 through suitable fluid-tight · packings fitted in the opposite lateral walls of said tank;- the positions of said electrodes can be adjusted longitudinally, for example by means of a rack and pinion mechanism 21-22. Between the stationary electrodes 2, 2' is disposed a moving system consisting of two movable electrodes 3, 3' and suspended from the lower extremity of a pendulum 23, the traverses the wall, of the tank 1 through a packing gland 4. An externally mounted eccentric mechanism 25 which is coupled to the upper extremity of the pendulum 23 by means of a connecting-rod 26 produces and maintains the oscillations of the pendulum with a well-defined and constant amplitude which brings the movable electrodes 3, 3' periodically and alternately, into contact with the corresponding stationary electrode 2 or 2'-.' The operation of the apparatus as thus constituted can easily be regulated so that the essential conditions laid down in the aforesaid Patent Application Ser. N° 17· 135 are complied with. When the apparatus is supplied with alternating current, the frequency of oscillations of the pendulum is synchronised with the frequency of the current employed. When the apparatus is supplied with direct current, the oscillation frequency is established as a function of the desired arcing time. In both cases, the amplitude >of the oscillations is so regulated as to obtain the maximum length of arc which is compatible with the terminal voltage and to produce at' the moment of contact of the electrodes a force of impact which is sufficient to effect the cleaning of said electrodes.
As has been stated earlier, the pendular motion as thus carried into effect has an advantage over the rectilineal motion described in the above-mentioned Patent Application in that it permits of substantial simplification of the apparatus when utilizing the two polarities of alternating current, this utilization being obtained in accordance with the form- of embodiment which is illus cal electrodes designed to cooperate with stationary electrodes which are also symmetrical. In order to obtain the same result, the rectilineal displacement of the movable electrodes as effected by means of a conventional crank and connecting-rod mechanism would call for the use of a crankshaft fitted with two oppositely-acting connecting-rods.
Furthermore, the pendular motion referred-to ensures a simplification of the packing glands at the 'point at which the mechanism for controlling the movement of the movable electrodes traverses the tank 1. In fact, in the case of a rectilineal movement, the travel of the electrode-carrier rod is equal to the travel of said electrodes and the packing gland must ensure leak-tightness during said travel. On the contrary, in the case of pendular motion, the packing glands 4 are subjected only to a rotary motion, the amplitude of which can be reduced to a minimum by lengthening to a sufficient extent the arm of the pendulum which carries the movable electrodes.
In the form Of embodiment which is illustrated in fig. 2, the same reference numerals designate the same elements as in fig. 1 and the stationary electrodes 2 and 2*, the position of which can be adjusted as in the previous example by means of a mechanism such as the rack-and-pinion mechanism 21-22, are located symmetrically and coaxially on each side of the reaction tank 1 and traverse the opposite lateral walls thereof. There this case of a horizontal rod 27 which carries at its extremities the 'movable electrodes 3 and 3'. The said moving system is ' controlled in dependence on two eccentrics 28, 28' by means of spindles 29, 29*. One of the two eccentrics is driven in dotation from a motor (not-shown in the drawings) which is located outside the tank 1 and which drives the shaft of said eccentric whilst the other eccentric is mounted to rotate freely and designed to maintain the moving system 27 in a position which is always parallel with the common axis of the stationary electrodes 2 and 2*.
In this form of embodiment also, the operation of the apparatus can easily be regulated so that the essential conditions indicated in the above-pentioned Patent Application should be satisfied. When the apparatus is supplied with alternating current, the speed of rotation of the driving eccentric is synchronized with the current frequency^ if the apparatus is supplied with direct current, the speed of rotation is established as a function of the desired arcing time. In both cases, the length of the arc is predetermined by the distance O.ff-center of the spindles 29 and 29'. The advantageous feature which is additionally provided by this second form of e bodi^ ent consists in the' fact that, since the arc describes-a semi-circle, the length of the arc increases to a greater extent than the distance, off-center. Finally, the intensity of impact which is necessa'ry for- the purpose of cleaning the electrodes and which takes place at the moment when each movable electrode comes into contact with the corresponding stationary electrode can easily he regulated by means of the mechanisms 21-22 which serve to position the stationary electrodes*.
The advantages of the · eccentric .device which has been described in the foregoing. are ' the- same as those '' of the pendulum system described earlier, namely™ sim- fication of the apparatus when utilizing the two polarities of alternating current and simplification of the solution to the problem of fluid-tightne'ss" at the level of the mechanism 'which controls the movement of the movable electrodes. ·

Claims (6)

HAV I NO NOW PARTICULARLY OESORIBBO AND ASCERTAINED THE NATURE Or OUR SAIO INVENTION ANO IN WHAT MANNER THE SAME 18 TO SE fBRFORMEO, WE OEOLARE, THAT WHAT WHAT WE CLAIM 18}
1. - A method for the production of a gaseous 'mixture containing acetylene and ethylene from a liquid hydrocarbon, which comprises making and interrupting an arc. between two electrodes at a determined . frequency within a body of the liquid hydrocarbon by imparting to at least one of the electrodes a continuous reciprocating movement which brings the electrodes into contact for the purpose of striking the arc and draws thorn apart for the purpose of interrupting the arc, the complete cycle comprising the interruption and the passage of the arc having a maximum duration of one second and the electrodes being so disposed that an impact which effects the cleaning of the electrodes at the moment of making the contact which initiates the arc, characterized in that the reciprocating movement of the electrodes is a curvilineal. alternating movement.
2. '2. - Apparatus for carrying out the method clai- 0 ) med in claim 1 , including a tank to contain the liquid imparting a continuous reciprocating movement to each movable electrode and ajustment means for positioning the electrodes in such manner that each movable electrode strikes againts a stationar electrode when they are. in their position of maximum proximity-, characterized in that the means for imparting the continuous reciprocating movement to each movable electrode are adapted to impart to the latter a curvilineal alternating movement.
3. - Apparatus as .claimed in claim 2, in which the curvilineal alternating movement of the movable electrodes is produced by device means of a pendulum.
4. - Apparatus as claimed in claim 2, in which · the curvilineal alternating movement of the movable electrodes is produced by means of an eccentric mechanism.
5. - Apparatus as claimed in any one of claims 2 to 4, in which the stationary electrodes 'are disposed symmetrically in pairs on two opposite sides of the tank and the movable electrodes are disposed symmetrically in pairs and in opposite relation on a moving system located between the stationary electrodes and to which is imparted a continuous curvilineal alternating movement.
6. - Method for the production of a gaseous mixture containing acetylene and ethylene and apparatus as hereinbefore described with reference to and illustrated in the accompanying drawings. ©ATffO THI818TH DAY OF OOTOBE , 1964 POR THE APPLICANTS , DR. REINHOLD COHN & 00
IL22275A 1963-11-04 1964-10-19 Production of gaseous mixtures containing acetylene and ethylene IL22275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR952615A FR84649E (en) 1963-11-04 1963-11-04 Process for the production of gas mixtures containing acetylene and ethylene

Publications (1)

Publication Number Publication Date
IL22275A true IL22275A (en) 1968-01-25

Family

ID=8815767

Family Applications (1)

Application Number Title Priority Date Filing Date
IL22275A IL22275A (en) 1963-11-04 1964-10-19 Production of gaseous mixtures containing acetylene and ethylene

Country Status (10)

Country Link
US (1) US3332865A (en)
BE (1) BE653971A (en)
DE (1) DE1256213B (en)
ES (2) ES305347A2 (en)
FI (1) FI41318B (en)
FR (1) FR84649E (en)
GB (1) GB1015069A (en)
IL (1) IL22275A (en)
LU (1) LU47100A1 (en)
NL (1) NL6412762A (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3519551A (en) * 1967-07-26 1970-07-07 Natan Saulovich Pechuro Reactor for the decomposition of liquid hydrocarbons by the electric discharge process
US5534232A (en) * 1994-08-11 1996-07-09 Wisconsin Alumini Research Foundation Apparatus for reactions in dense-medium plasmas
US5514262A (en) * 1995-05-05 1996-05-07 Ford Motor Company Electochemical deposition of trans-polyacetylene films

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US906666A (en) * 1907-10-17 1908-12-15 Alderton Towers Vending-machine.
US1528623A (en) * 1921-06-04 1925-03-03 Linderborg Nils Gerhard Process and arrangement for treating hydrocarbons, metals, and other bodies
FR1148416A (en) * 1952-12-17 1957-12-09 Lonza Ag Process and device for the production of gas containing acetylene
US2854392A (en) * 1955-09-22 1958-09-30 Tokumoto Shin-Ichi Arc discharge production of low valency halides of titanium
US2878177A (en) * 1956-02-01 1959-03-17 Kroepelin Hans Process for cracking hydrocarbons in the liquid state
US3224952A (en) * 1962-04-24 1965-12-21 Soc Produits Azotes Sa Method and device for the production of gaseous mixtures containing acetylene and ethylene

Also Published As

Publication number Publication date
FI41318B (en) 1969-06-30
BE653971A (en) 1965-04-05
FR84649E (en) 1965-03-19
NL6412762A (en) 1965-05-06
US3332865A (en) 1967-07-25
ES305347A2 (en) 1965-05-01
DE1256213B (en) 1967-12-14
GB1015069A (en) 1965-12-31
ES308813A2 (en) 1965-05-16
LU47100A1 (en) 1964-12-08

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