CN202078885U - Synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride - Google Patents
Synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride Download PDFInfo
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- CN202078885U CN202078885U CN2011201360720U CN201120136072U CN202078885U CN 202078885 U CN202078885 U CN 202078885U CN 2011201360720 U CN2011201360720 U CN 2011201360720U CN 201120136072 U CN201120136072 U CN 201120136072U CN 202078885 U CN202078885 U CN 202078885U
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- reaction tube
- acetylene
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- catalyst
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Abstract
The utility model relates to a production device for chemical products, in particular to a synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride, which is a tube nest type converter and can be used independently, or two synthetic converters can be serially connected, and a feed gas flow direction can be adjusted so that feed gas can enter the synthetic converter from the top or the bottom. A turbulent flow component capable of effectively strengthening heat transfer is disposed in a reaction tube nest, radial temperatures in the reaction tube nest are distributed uniformly, axial temperatures in the reaction tube nest are distributed slowly and controllably, shortages that radial temperatures in a reaction tube nest of a traditional synthetic converter are uneven in distribution, heat of a center area of the reaction tube nest cannot be transferred outwards rapidly, so that local overheat is formed and high-temperature sublimation loss of catalyst is caused are overcome, the service life of the catalyst is prolonged, flux and conversion rate of the feed gas are increased, and production efficiency and operation flexibility are high.
Description
Technical field
The utility model relates to a kind of process units of chemical products, and what be specifically related to is the synthesis converter that a kind of acetylene and hcl reaction generate vinyl chloride.
Technical background
Acetylene and hydrogen chloride synthetic reaction generate vinyl chloride.Synthetic reaction in the past is to carry out in the shell and tube synthesis converter that the steel pipe of certain internal diameter is formed, and is filled with catalyst in the tubulation.Catalyst system therefor is for being the mercury bichloride of carrier with the active carbon.For this shell and tube synthesis converter, the outer heat transfer medium of tubulation is the water of fluidized state, heat transfer coefficient is bigger, filled catalyst but tubulation is interior, it is external that reaction heat in the pipe is difficult to be delivered to pipe, make reaction temperature have tangible radial distribution along the tubulation cross section, the temperature at tubulation center is for the highest.In addition, the reaction temperature in the synthesis converter also exists along the high temperature section of tubulation axial distribution.Because the radially existence of Temperature Distribution and axial temperature distribution in the tubulation, cause in the synthesis converter tubulation axially high temperature section center temperature too high and cause the mercury bichloride distillation of catalyst carrier active carbon adsorption and escape with the air-flow band, reduced catalyst activity and service life, cause reducing production capacity or frequently more catalyst changeout increase production cost.Improve the heat and mass transfer situation in the vinyl chloride synthesis converter, eliminate radial temperature profile, make the axial temperature trend that distributes controlled gently, this is present acetylene and hydrogen chloride synthetic reaction generation course of production of chloroethylene is expected the problem that solves always.
Summary of the invention
The utility model provides a kind of acetylene and hcl reaction to generate the synthesis converter of vinyl chloride, employing is provided with the flow-disturbing assembly that is made of central core tube and spoiler and carries out augmentation of heat transfer and mass transfer in the synthesis converter reaction tube, after unstripped gas enters shell-and-tube reactor, under the effect of turbulent element, disperse, twist, rotate and merge, strengthen the diffusion of acetylene and hydrogen chloride in catalyst surface and inside.
The technical solution of the utility model is:
A kind of acetylene and hcl reaction generate the synthesis converter of vinyl chloride, comprise unstripped gas inlet, upper cover, thermocouple, upper perforated plate, blast pipe, cylindrical shell, cooling water inlet, dividing plate, reaction tube, expansion joint, activated carbon, porcelain ring, porous plate, low head, put acid mouth, syngas outlet, manhole or hand hole, lower perforated plate, drain, coolant outlet, deflection plate, erosion control baffle plate, mandrel, spoiler, catalyst and annex, the flow-disturbing assembly and the catalyst that are made of mandrel and spoiler are housed in its reaction tube; Active carbon, porcelain ring, porous plate and erosion control baffle plate all are housed in upper cover and the low head, or only active carbon, porcelain ring, porous plate and erosion control baffle plate are housed in a side seal head.
Described a kind of acetylene and hcl reaction generate the synthesis converter of vinyl chloride, and its mandrel is hollow shaft or solid shafting, and spoiler is flight, commercially available chemical filler or static mixing element, and flight is left-handed or dextrorotation, arrange continuously or intermittently arrange.
Described a kind of acetylene and hcl reaction generate the synthesis converter of vinyl chloride, and its syngas outlet and unstripped gas inlet are interchangeable.
Described a kind of acetylene and hcl reaction generate the synthesis converter of vinyl chloride, in its thermocouple insertion hollow core shaft or in the annular space between insertion mandrel and reaction tube.
The utlity model has following advantage:
1. the flow-disturbing assembly that is made of mandrel and spoiler is housed in the reaction tube, strengthened bore to convection heat transfer' heat-transfer by convection, can eliminate bore to temperature difference, overcome the tube hub hot-spot and the distillation of the catalyst mercury bichloride that causes, prolong activity of such catalysts and service life.
2. the flow-disturbing assembly has effectively improved the heat transfer coefficient in the reaction tube, and the axial temperature that can improve in the reaction tube distributes, and control reaction tube axial temperature is distributed becomes possibility.
3. the flow-disturbing assembly has changed the flow condition of unstripped gas in reaction tube, has strengthened the renewal that acetylene, hydrogen chloride contact with catalyst surface; Strengthened the diffusion to catalyst inside of acetylene, hydrogen chloride through the activated carbon capillary road; Strengthened acetylene, hcl reaction and generated the vinyl chloride of the speed of vinyl chloride and generation through the diffusion of activated carbon capillary to the catalyst outside; Also strengthen simultaneously vinyl chloride and broken away from the diffusion of catalyst surface in air-flow.
4. compare with the synthesis converter that hcl reaction generates vinyl chloride with traditional acetylene, the vinyl chloride synthesis converter catalyst life cycle that the utility model proposes is long, reaction tube unit are production efficiency height, the distillation of catalyst-free mercury bichloride, environmental benefit is good.
5. the synthetic conversion process of traditional vinyl chloride is two vinyl chloride synthesis converter serial operations, what its second synthesis converter filled is active higher raw catelyst, first converter then filled the old catalyst of being changed by second converter, the synthesis converter that the utility model proposes, the unstripped gas inlet can exchange with syngas outlet, suitably increase reaction tube length, can realize that a converter replaces traditional synthesis converter of two serial operations.
Description of drawings
Fig. 1 all is equipped with the acetylene of active carbon, porcelain ring, porous plate and the synthesis converter schematic diagram that hcl reaction generates vinyl chloride in upper cover and the low head;
Fig. 2 is equipped with the acetylene of active carbon, porcelain ring, porous plate and the synthesis converter schematic diagram that hcl reaction generates vinyl chloride in the low head;
Fig. 3 is the reaction tube axial section schematic diagram of the flow-disturbing assembly of interior dress hollow core shaft and spoiler formation;
Fig. 4 is the schematic diagram that the same cross section of reaction tube is provided with two spoilers;
Fig. 5 is the schematic diagram that the same cross section of reaction tube is provided with four spoilers.
The specific embodiment
Embodiment one
A kind of acetylene and hcl reaction generate the synthesis converter of vinyl chloride, comprise unstripped gas inlet (1), upper cover (2), thermocouple (3), upper perforated plate (4), blast pipe (5), cylindrical shell (6), cooling water inlet (7), dividing plate (8), reaction tube (9), expansion joint (10), activated carbon (11), porcelain ring (12), porous plate (13), low head (14), put acid mouthful (15), syngas outlet (16), manhole or hand hole (17), lower perforated plate (18), drain (19), coolant outlet (20), deflection plate (21), erosion control baffle plate (22), mandrel (23), spoiler (24), catalyst (25) and annex.Active carbon (11), porcelain ring (12), porous plate (13) all are housed, as Fig. 1 in the upper and lower end socket; Flow-disturbing assembly and catalyst (25) that mandrel (23) and spoiler (24) constitute are housed, as Fig. 2 in the reaction tube (9); Mandrel (23) is a hollow core shaft, arranges 2 spoilers (24) on the every cross section of reaction tube, as Fig. 3; Thermocouple (3) inserts in the hollow core shaft (23).
Embodiment two
Embodiment two and embodiment one are basic identical, and difference is non-activity carbon (11), porcelain ring (12), porous plate (13) in the upper cover, and activated carbon (11), porcelain ring (12), porous plate (13) only are housed in low head.
Embodiment three
Embodiment three and embodiment one are basic identical, and difference is that mandrel (23) is solid mandrel, in the annular space between thermocouple (3) insertion reaction tube (9) and mandrel (23).
Embodiment four
Embodiment four and embodiment one are basic identical, and difference is to arrange on the every cross section of reaction tube (9) 4 spoilers (24).
Embodiment five
Embodiment five and embodiment one are basic identical, and difference is that the spoiler (24) in the reaction tube (9) is replaced by chemical filler.
Embodiment six
Embodiment six and embodiment one are basic identical, and difference is to be provided with in a part of reaction tube (9) mandrel (23) and spoiler (24); Mandrel (23) is not set in another part reaction tube (9), spoiler (24) only is set.
Embodiment seven
Embodiment seven and embodiment one are basic identical, and difference is no mandrel (23) in the reaction tube (9), arrange 1 spoiler (24) on the every cross section of reaction tube (9).
Claims (4)
1. acetylene and hcl reaction generate the synthesis converter of vinyl chloride, comprise the unstripped gas inlet, upper cover, thermocouple, upper perforated plate, blast pipe, cylindrical shell, the cooling water inlet, dividing plate, reaction tube, expansion joint, activated carbon, the porcelain ring, porous plate, low head, put the acid mouth, syngas outlet, manhole or hand hole, lower perforated plate, drain, coolant outlet, deflection plate, the erosion control baffle plate, mandrel, spoiler, catalyst and annex is characterized in that being equipped with in the reaction tube (9) flow-disturbing assembly and the catalyst (25) that is made of mandrel (23) and spoiler (24); In upper cover (2) and the low head (14) active carbon (11), porcelain ring (12), porous plate (13) and erosion control baffle plate (22) are housed all, or only active carbon (11) is housed in a side seal head, porcelain ring (12), porous plate (13) and erosion control baffle plate (22).
2. a kind of acetylene according to claim 1 and hcl reaction generate the synthesis converter of vinyl chloride, it is characterized in that mandrel (23) is hollow shaft or solid shafting, spoiler (24) is flight, commercially available chemical filler or static mixing element, flight is left-handed or dextrorotation, arranges continuously or intermittently arranges.
3. a kind of acetylene according to claim 1 and hcl reaction generate the synthesis converter of vinyl chloride, it is characterized in that syngas outlet (16) and unstripped gas inlet (1) is interchangeable.
4. a kind of acetylene according to claim 1 and hcl reaction generate the synthesis converter of vinyl chloride, it is characterized in that thermocouple (3) inserts in the hollow core shaft (23) or inserts in the annular space between mandrel (23) and reaction tube (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201360720U CN202078885U (en) | 2011-05-03 | 2011-05-03 | Synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201360720U CN202078885U (en) | 2011-05-03 | 2011-05-03 | Synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202078885U true CN202078885U (en) | 2011-12-21 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201360720U Expired - Fee Related CN202078885U (en) | 2011-05-03 | 2011-05-03 | Synthetic converter for producing chloroethylene due to reaction of acetylene and hydrogen chloride |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202078885U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188937A (en) * | 2011-05-03 | 2011-09-21 | 吴剑华 | Synthetic converter for producing chloroethylene by synthetic reaction of ethyne and hydrogen chloride |
| CN113477027A (en) * | 2021-08-04 | 2021-10-08 | 中冶赛迪技术研究中心有限公司 | Integrated device and method for desulfurization, adsorption, regeneration, cooling and recovery of blast furnace gas |
-
2011
- 2011-05-03 CN CN2011201360720U patent/CN202078885U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102188937A (en) * | 2011-05-03 | 2011-09-21 | 吴剑华 | Synthetic converter for producing chloroethylene by synthetic reaction of ethyne and hydrogen chloride |
| CN102188937B (en) * | 2011-05-03 | 2013-06-19 | 吴剑华 | Synthetic converter for producing chloroethylene by synthetic reaction of ethyne and hydrogen chloride |
| CN113477027A (en) * | 2021-08-04 | 2021-10-08 | 中冶赛迪技术研究中心有限公司 | Integrated device and method for desulfurization, adsorption, regeneration, cooling and recovery of blast furnace gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20140503 |