CN102580630A - Bubble tower reactor for enhancing acetylene dimerization - Google Patents
Bubble tower reactor for enhancing acetylene dimerization Download PDFInfo
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- CN102580630A CN102580630A CN2012100055931A CN201210005593A CN102580630A CN 102580630 A CN102580630 A CN 102580630A CN 2012100055931 A CN2012100055931 A CN 2012100055931A CN 201210005593 A CN201210005593 A CN 201210005593A CN 102580630 A CN102580630 A CN 102580630A
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Abstract
In order to solve the problems of serious backmixing of fluid, low selectivity of vinyl acetylene, large side output of high polymers and the like in the bubble tower reactor/void tower in the prior art, the invention provides a bubble tower reactor for enhancing acetylene dimerization. The bubble tower reactor comprises a bubble tower, wherein 2 to 8 baffles are connected to the inner wall of the bubble tower, are a circle, a rectangle or a polygon and preferably are the rectangle, and one short edge of the rectangle is in circular arc transition; and the optimum thickness of each baffle is 1/2 of the wall thickness of the bubble tower, the optimum width of each baffle is 3 times the wall thickness of the bubble tower, and an included angle between the lower surface of each baffle and the tower wall is 30 to 120 degrees. The bubble tower reactor has a simple structure and is convenient to manufacture and low in equipment cost; the backmixing of acetylene gas can be reduced effectively under the same working condition, so that the average concentration of the acetylene gas is improved, the reaction speed of acetylene dimerization is improved, the further contact of products and acetylene is reduced, and the conversion rate of the acetylene and the selectivity of the vinyl acetylene can be improved.
Description
Technical field
The present invention relates to a kind of bubbling column reactor, particularly a kind of bubbling column reactor of strengthening the acetylene dimerization.
Background technology
Vinylacetylene is an intermediate of producing neoprene; Mainly be to adopt acetylene generation dimerization reaction to generate, this method is the raw material acetylene gas to be fed continuously contain in the liquid solution of catalyst, a part of acetylene gas generation vinylacetylene that under catalyst action, reacts; The unreacted acetylene gas of another part is with the vinylacetylene outflow reactor of generation; In follow-up piece-rate system, separate, obtain containing the product of small amount of impurities, acetylene turns back to raw material system.At present, acetylene dimerization reaction great majority are in traditional bubbling column reactor/void tower, to carry out.For traditional bubbling column reactor, its shortcoming is:
1, the back-mixing of fluid is very serious, seriously reduces the concentration of acetylene gas in the reactor, thereby the conversion ratio of acetylene is reduced;
2, increase the concentration of vinylacetylene, and make it further to react the generation divinylacetylene or/and more macromolecular high polymer descends the selectivity of vinylacetylene with acetylene;
3, owing to the increase of air-teturning mixed phenomenon along with the tower diameter increases, finally have a strong impact on amplification test.
Summary of the invention
The back-mixing of the fluid that exists for the bubbling column reactor that overcomes prior art/void tower is very serious, the vinylacetylene selectivity descends, have a strong impact on problem such as amplification test; The present invention proposes a kind of bubbling column reactor of strengthening the acetylene dimerization, and the present invention can improve conversion of alkyne and vinylacetylene selectivity.A kind of bubbling column reactor of strengthening the acetylene dimerization of the present invention comprises bubble tower, comprises bubble tower, on the inwall of said bubble tower, is connected with baffle plate.
Further, said baffle plate is 2～8.
Further, said baffle plate is circle, rectangle or polygon.
Further, said baffle plate the best is a rectangle, and wherein minor face of rectangle is an arc transition.
Further, the optimum thickness of said baffle plate is 1/2 of a bubble tower wall thickness.
Further, the optimum width of said baffle plate is 3 times of bubble tower wall thickness.
Further, the angle of the lower surface of said baffle plate and tower wall formation is 30～120 degree.
Further, said baffle length/bubble tower diameter=0.3～0.6
A kind of useful technique effect of strengthening the bubbling column reactor of acetylene dimerization of the present invention is:
1, in the reaction zone owing to the bubbling column reactor of strengthening the acetylene dimerization in tradition baffle plate has been installed; So it is identical to work as reactor inlet pressure, when both catalyst use volumes basic identical, and the present invention compares with the bubbling column reactor that tradition is strengthened the acetylene dimerization; Adopted the internal baffle type to strengthen the bubbling column reactor of acetylene dimerization; Can obviously reduce the back-mixing of acetylene gas, the mean concentration of whole acetylene gas is improved, accelerate acetylene dimerization reaction speed;
2, not only accelerated acetylene dimerization reaction speed, simultaneously, reduced product and the further of acetylene and contacted, so the selectivity of conversion of alkyne and vinylacetylene all is improved;
3, because the present invention obviously reduces the back-mixing of acetylene gas, and simultaneously, the selectivity of conversion of alkyne and vinylacetylene all is improved, therefore, the present invention more helps amplification test;
4, the apparatus structure among the present invention is simple, equipment cost is low.
Description of drawings
Accompanying drawing 1 is a kind of bubbling column reactor structural representation of strengthening the acetylene dimerization of the present invention;
Accompanying drawing 2 is a kind of bubbling column reactor rectangle baffle arrangement sketch mapes of strengthening the acetylene dimerization of the present invention.
Below in conjunction with accompanying drawing and specific embodiment a kind of bubbling column reactor of strengthening the acetylene dimerization of the present invention is further specified.
The specific embodiment
Below in conjunction with accompanying drawing and specific embodiment; Further illustrate the present invention; Should be appreciated that these embodiment only are used to explain the present invention; And be not used in restriction scope of the present invention, after having read the present invention, those skilled in the art all fall within the application's accompanying claims institute restricted portion to the modification of the various equivalent form of values of the present invention.
Accompanying drawing 1 is a kind of bubbling column reactor structure of strengthening the acetylene dimerization of the present invention, and accompanying drawing 2 is a kind of bubbling column reactor rectangle baffle arrangement sketch mapes of strengthening the acetylene dimerization of the present invention, among the figure; 1 for strengthening the bubbling column reactor of acetylene dimerization; 2 is baffle plate, and A is import, and B is outlet.Can know that by figure a kind of bubbling column reactor 1 of strengthening the acetylene dimerization of the present invention is a uniform up and down straight barrel type structure, comprises bubble tower, on the inwall of said bubble tower, is connected with baffle plate.Further, said baffle plate 2 is 2～8; Further, said baffle plate 2 is circle, rectangle or polygon; Further, said baffle plate 2 the bests are rectangle, and wherein minor face of rectangle is an arc transition; Further, the optimum thickness of said baffle plate 2 is 1/2 of a bubble tower wall thickness; Further, the optimum width of said baffle plate 2 is 3 times of bubble tower wall thickness; Further, the angle of the lower surface of said baffle plate 2 and tower wall formation is 30～120 degree.In the specific implementation, acetylene gas is got into by the import A of bubbling column reactor, in bubble tower, after the reaction, generally generates acetylene and vinylacetylene mist, and said acetylene and vinylacetylene mist are discharged bubble tower by outlet B.Generally speaking, bubble tower is processed by fiberglass, and face can wrap up one deck cement in the outside of fiberglass; Inner surface at fiberglass can spray one deck anticorrosive, among the present invention, for the material that guarantees baffle plate 2 consistent with the material of bubble tower; So, the baffle plate 2 general glass-reinforced plastic materials that adopt.In the specific implementation, baffle plate 2 is a rectangle, and wherein minor face of rectangle is an arc transition; The tower wall of the limit of this arc transition and bubble tower can be for being fixedly connected, and this is because bubble tower is cylindric, in order to make the tower wall better fit of baffle plate 2 and bubble tower; Reach seamless connection status, therefore the arc transition limit with baffle plate 2 is fixedly connected with the tower wall as far as possible, and the radian of this transition is provided with according to the radian of the bubble tower inwall of reality; And; Said fixed connection is welding, rivets or the gummed connection that in general the gummed connection is the most convenient, and those skilled in the art can select suitable adhesive according to demand.Same, the arc transition limit also can be connected for dismountable with the tower wall, and promptly pre-embedded bolt on baffle plate 2 is holed on bubble tower, connects through the anticorrosion bolt then.
It will be understood by those skilled in the art that; The angle of baffle plate and tower wall can be the unspecified angle between 0 to 180 degree, but in the specific implementation, if angle is too little or too big; Then baffle plate is limited to the sphere of action of acetylene gas; Make the local concentration of tower central area acetylene too high, and the concentration of the acetylene gas beyond the central area is very low, thereby can not improves the mean concentration of acetylene gas in the entire reaction district.Therefore, the present invention in the specific implementation, preferred angle is 30～120 degree.
It will be appreciated by persons skilled in the art that if the quantity of baffle plate is very few or length is too short, then can not make the acetylene gas of central area be distributed to other place well, thereby can not improve the concentration of acetylene gas in the reactor; And if baffle number is too much or length is oversize, then can cause the new uneven distribution of acetylene gas, make local concentration too high.Therefore, the present invention in the specific implementation, baffle number is 2～8, the length of baffle plate 2: the diameter of bubble tower 1=0.3～0.6.Be described further below in conjunction with specific embodiment 1 to 7.
Specific embodiment 1
The bubbling column reactor size of strengthening the acetylene dimerization is as shown in table 1.
Bubbling column reactor size (the unit: m) of the reinforcement acetylene dimerization of table 1 specific embodiment 1
The liquid level of strengthening the bubbling column reactor liquid of acetylene dimerization is 5m.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 4 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 60 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.4; Distance between said adjacent two baffle plates 2 is 1.25m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 8 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 60 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.4; Distance between said adjacent two baffle plates 2 is 0.45m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Specific embodiment 3
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 3 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 60 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.4; Distance between said adjacent two baffle plates 2 is 1.5m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Specific embodiment 4
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 4 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 120 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.4; Distance between said adjacent two baffle plates 2 is 1.25m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Specific embodiment 5
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 4 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 30 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.4; Distance between said adjacent two baffle plates 2 is 1.25m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Specific embodiment 6
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 4 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 60 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.6; Distance between said adjacent two baffle plates 2 is 1.25m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
Specific embodiment 7
Strengthen the bubbling column reactor size such as the specific embodiment 1 of acetylene dimerization.
Strengthen the liquid level such as the specific embodiment 1 of the bubbling column reactor liquid of acetylene dimerization.
The baffle plate installation site is: the inner wall of tower below the bubbling column reactor liquid of strengthening the acetylene dimerization is installed baffle plate 2, and the bubbling column reactor 1 of the reinforcement acetylene dimerization in the present embodiment has 4 rectangle baffle plates 2 as shown in Figure 2; The material of said baffle plate 2 is the same with the material of bubble tower; The thickness of said baffle plate 2 is 1/2 of bubble tower wall thickness; The width of said baffle plate 2 is 3 times of bubble tower wall thickness; Said baffle plate 2 is 60 degree with the angle value of tower wall; The length of said baffle plate 2/bubble tower diameter=0.3; Distance between said adjacent two baffle plates 2 is 1.25m; Said baffle plate 2 topmost is equal with liquid level; Said baffle plate 2 bottom is 1.25m with the distance at the bottom of the tower.
This specific embodiment carries out in acetylene-liquid catalyst system, and liquid level is 5m, and void tower acetylene gas flow is 1000m
3/ h calculates through experimental result, conversion of alkyne and vinylacetylene selectivity in more traditional bubble tower and the internal baffle bubble tower, and the result is shown in table 2.
The bubbling column reactor of the bubbling column reactor of table 2 tradition reinforcement acetylene dimerization and the reinforcement acetylene dimerization of present embodiment optionally compares for conversion of alkyne and vinylacetylene
Conversion of alkyne is 10.24% in the bubbling column reactor of tradition reinforcement acetylene dimerization, and the selectivity of vinylacetylene is 80.76%.
Can know like table 2; In the specific embodiment 1, conversion of alkyne is increased to 15.29% in the bubbling column reactor of internal baffle reinforcement acetylene dimerization, and the selectivity of vinylacetylene is increased to 91.43%; Conversion of alkyne has improved 5.05%, and the selectivity of vinylacetylene has improved 10.67%.
Can know like table 2, in the specific embodiment 2, when adopting 8 baffle plates; Its conversion ratio and selectivity all increase to some extent; But the amplitude that increases is little, as adopts 4 baffle plates, and the selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively; And adopting 8 baffle plates, the selectivity of conversion of alkyne and vinylacetylene can only improve 3.33%, 4.02%.
Can know like table 2, in the specific embodiment 3, when adopting 3 baffle plates; Its conversion ratio and selectivity also increase to some extent; But the amplitude that increases neither be very big, as adopt 4 baffle plates, and the selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively; And adopting 3 baffle plates, the selectivity of conversion of alkyne and vinylacetylene can only improve 4.82%, 7.59%.
Can know like table 2; In the specific embodiment 4, angle is 60 when spending, and the selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively; And angle is 120 when spending, and the selectivity of conversion of alkyne and vinylacetylene can only improve 4.43%, 9.29%.
Can know like table 2; In the specific embodiment 5, angle is 60 when spending, and the selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively; And angle is 30 when spending, and the selectivity of conversion of alkyne and vinylacetylene can only improve 3.04%, 5.56%.
Can know like table 2; In the specific embodiment 6; Baffle length/bubble tower diameter=0.4 o'clock; The selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively, and baffle length and bubble tower diameter ratio are 0.6 o'clock, and the selectivity of conversion of alkyne and vinylacetylene can only improve 2.97%, 3.83%.
Can know like table 2; In the specific embodiment 7; Baffle length/bubble tower diameter=0.6 o'clock; The selectivity of conversion of alkyne and vinylacetylene can improve 5.05%, 10.67% respectively, and baffle length and bubble tower diameter ratio are 0.3 o'clock, and the selectivity of conversion of alkyne and vinylacetylene can only improve 4.5%, 6.67%.
In sum, compare with traditional bubble tower, in a kind of bubbling column reactor of strengthening the acetylene dimerization of the present invention, the conversion ratio of acetylene and the selectivity of vinylacetylene all increase, and the amplitude that specific embodiment 1 improves is maximum.Thereby can explain; The bubbling column reactor of internal baffle reinforcement acetylene dimerization can reduce the back-mixing of acetylene gas; The mean concentration of whole acetylene gas is improved, accelerated acetylene dimerization reaction speed, the while has reduced product again and the further of acetylene contacts; So the selectivity of conversion of alkyne and vinylacetylene all can be improved, and specific embodiment 1 effect is the most remarkable.
Claims (8)
1. a bubbling column reactor of strengthening the acetylene dimerization comprises bubble tower (1), it is characterized in that: on the inwall of said bubble tower (1), be connected with baffle plate (2).
2. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 1 is characterized in that: said baffle plate (2) is 2～8.
3. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 1 is characterized in that: said baffle plate (2) is circle, rectangle or polygon.
4. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 3 is characterized in that: said baffle plate (2) is best to be rectangle, and wherein minor face of rectangle is an arc transition.
5. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 1 is characterized in that: the optimum thickness of said baffle plate (2) is 1/2 of a bubble tower wall thickness.
6. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 1 is characterized in that: the optimum width of said baffle plate (2) is 3 times of bubble tower wall thickness.
7. according to the described a kind of bubbling column reactor of strengthening the acetylene dimerization of the arbitrary claim of claim 1 to 6, it is characterized in that: the angle that the lower surface of said baffle plate (2) and tower wall form is 30～120 degree.
8. a kind of bubbling column reactor of strengthening the acetylene dimerization according to claim 7 is characterized in that: said baffle plate (2) length/bubble tower diameter=0.3～0.6.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005593.1A CN102580630B (en) | 2012-01-09 | 2012-01-09 | Bubble tower reactor for enhancing acetylene dimerization |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210005593.1A CN102580630B (en) | 2012-01-09 | 2012-01-09 | Bubble tower reactor for enhancing acetylene dimerization |
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| CN102580630B CN102580630B (en) | 2014-11-05 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102757894A (en) * | 2012-07-31 | 2012-10-31 | 济南大学 | Inverted conical microporous bubbling liquid-phase submerged fermentation device |
| CN104447169A (en) * | 2014-12-19 | 2015-03-25 | 重庆大学 | Method for preparing vinyl acetylene by employing ultrasonic enhanced acetylene dimer |
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| US1630037A (en) * | 1925-08-12 | 1927-05-24 | Smith Corp A O | Electrically-welded bubble tower |
| US3701793A (en) * | 1969-12-31 | 1972-10-31 | Metallgesellschaft Ag | Method of carrying out liquid gas reactions |
| SU487497A1 (en) * | 1973-02-09 | 1979-10-15 | Предприятие П/Я Р-6956 | Sectional bubbling reactor |
| DE4201033A1 (en) * | 1992-01-17 | 1993-07-22 | Ingenieurbetrieb Anlagenbau Le | Aerosol sepn. from gas esp. hydrogen@ or oxygen@ stream from water electrolysis - in which supply pipe is surrounded by tube which forms bubble column space and separates space from scrubbing liq. outlet region |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102757894A (en) * | 2012-07-31 | 2012-10-31 | 济南大学 | Inverted conical microporous bubbling liquid-phase submerged fermentation device |
| CN104447169A (en) * | 2014-12-19 | 2015-03-25 | 重庆大学 | Method for preparing vinyl acetylene by employing ultrasonic enhanced acetylene dimer |
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| Publication number | Publication date |
|---|---|
| CN102580630B (en) | 2014-11-05 |
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