CN202700338U - Device for producing crylic acid through calcium carbide tail gas - Google Patents
Device for producing crylic acid through calcium carbide tail gas Download PDFInfo
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- CN202700338U CN202700338U CN 201220423791 CN201220423791U CN202700338U CN 202700338 U CN202700338 U CN 202700338U CN 201220423791 CN201220423791 CN 201220423791 CN 201220423791 U CN201220423791 U CN 201220423791U CN 202700338 U CN202700338 U CN 202700338U
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- Prior art keywords
- calcium carbide
- tail gas
- gas
- carbide tail
- crylic acid
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- 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.)
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- Separation Of Gases By Adsorption (AREA)
Abstract
The utility model discloses a device for producing crylic acid through calcium carbide tail gas, which relates to the fields of calcium carbide and chemical industry and solves the problems of lower utilization ratio of the tail gas and environment pollution in conventional calcium carbide enterprises. The device comprises a dry dust removal device, a wet dust removal device, a gas holder, a compressor, a desulfurizer, a deoxidation tower, an CO(Carbonic Oxide)purifying device and a reactor, which are connected in sequence through a pipeline. The device effectively improves the utilization ratio of the calcium carbide tail gas, reduces environment pollution and can produce high value-added crylic acid. The device is small in technology investment and low in operating cost.
Description
Technical field
The utility model relates to calcium carbide and chemical field, is specifically related to a kind of calcium carbide tail gas that utilizes and produces acrylic acid device.
Background technology
China's calcium carbide in 2011 estimates that total output is approximately 1,750 ten thousand tons, increases by nearly about 20% on a year-on-year basis.The closed type calcium carbide furnace composition of fumes mainly take CO as main, accounts for about 80% greatly.Produce 1 ton of calcium carbide and generally will produce more than 400 cubic metre of furnace gas, huge tail gas amount like this, the tail gas more than 80% all is directly to enter in the atmosphere in these enterprises at present; Because calcium carbide production intermittently comes out of the stove, often light maintenance, the factor such as have a power failure, ration the power supply, so furnace gas amount and temperature fluctuation are not steady, between frequent 500-800 ℃, instantaneously reach 1000 ℃ and even higher; Furnace gas contains micro-tar, easily makes the cloth bag felt jam; Dustiness is large in the furnace gas, at 50-150g/Nm
3That stove dirt has is sticking, light, carefully be difficult for pouncing on the characteristics of collection, and furnace gas has itself latent heat and sensible heat, has again a large amount of dust that are difficult to udst separation simultaneously.Incomplete flue gas cleaning and to utilize technology be great waste to the energy not only, and be sizable harm for environmental pollution.
Summary of the invention
The utility model is lower for the waste gas utilization rate that solves present calcium carbide enterprise, the problem of contaminated environment, and provide a kind of calcium carbide tail gas that utilizes to produce acrylic acid device.
The utility model is realized by following scheme:
A kind of calcium carbide tail gas that utilizes is produced acrylic acid device, comprises the dry method, Wet-way dust-collector, gas holder, compressor, desulfurizing tower, deoxidation tower, CO purifying plant, the reactor that connect successively by pipeline.
Further, described compressor is roots blower.
Described CO purifying plant is pressure-variable adsorption CO purifying plant.
During work, the calcium carbide tail gas that furnace of calcium carbide is produced through cooling, dedusting, remove tar, compression, desulfurization, deoxidation, CO and purify after, the acetylene gas that the CO that obtains and calcium carbide are produced reacts in reactor, generation acrylic acid.
Furnace of calcium carbide tail gas out is through cooling, enter coal gas preliminary clearning operation, remove dust in the tail gas, tar etc. through dry method, Wet-way dust-collector, the cabinet of supplying gas, buffering, by after the compressor voltage stabilizing, be sent to desulfurizing tower, the coal gas after the smart desulfurization enters deoxidation tower, coal gas after deoxidation send the CO purifying plant, purifies; After acetylene absorbs with THF, through adding water and catalyst is sent into reactor; Entrance CO and C at reactor
2H
2/ THF solution enters reactor after mixing, and carries out the gas and liquid phase reaction and generate acrylic acid under the temperature conditions about 200 ℃.
The utility model effectively improves the calcium carbide tail gas utilization rate, reduces contaminated environment, can also the high acrylic acid of production added value, and equipment and technology small investment, operating cost are low.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Among the figure: 1-dry method, Wet-way dust-collector, 2-gas holder, 3-compressor, 4-desulfurizing tower, 5-deoxidation tower, 6-CO purifying plant, 7-reactor.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is described further.
A kind of calcium carbide tail gas that utilizes is produced acrylic acid device, comprises the dry method, Wet-way dust-collector 1, gas holder 2, compressor 3, desulfurizing tower 4, deoxidation tower 5, CO purifying plant 6, the reactor 7 that connect successively by pipeline.
Claims (3)
1. one kind is utilized calcium carbide tail gas to produce acrylic acid device, it is characterized in that comprising the dry method, Wet-way dust-collector (1), gas holder (2), compressor (3), desulfurizing tower (4), deoxidation tower (5), CO purifying plant (6), the reactor (7) that connect successively by pipeline.
2. a kind of calcium carbide tail gas that utilizes according to claim 1 is produced acrylic acid device, it is characterized in that described compressor (3) is roots blower.
3. a kind of calcium carbide tail gas that utilizes according to claim 1 and 2 is produced acrylic acid device, it is characterized in that described CO purifying plant (6) is pressure-variable adsorption CO purifying plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423791 CN202700338U (en) | 2012-08-24 | 2012-08-24 | Device for producing crylic acid through calcium carbide tail gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220423791 CN202700338U (en) | 2012-08-24 | 2012-08-24 | Device for producing crylic acid through calcium carbide tail gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202700338U true CN202700338U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220423791 Expired - Fee Related CN202700338U (en) | 2012-08-24 | 2012-08-24 | Device for producing crylic acid through calcium carbide tail gas |
Country Status (1)
| Country | Link |
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| CN (1) | CN202700338U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118293A (en) * | 2017-05-22 | 2017-09-01 | 北京华福工程有限公司 | A kind of method and system that polyacrylic acid is prepared with calcium carbide stove exhaust |
| CN109621634A (en) * | 2019-01-18 | 2019-04-16 | 四川天科技股份有限公司 | A kind of method and device system of carbide acetylene purification |
-
2012
- 2012-08-24 CN CN 201220423791 patent/CN202700338U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107118293A (en) * | 2017-05-22 | 2017-09-01 | 北京华福工程有限公司 | A kind of method and system that polyacrylic acid is prepared with calcium carbide stove exhaust |
| CN109621634A (en) * | 2019-01-18 | 2019-04-16 | 四川天科技股份有限公司 | A kind of method and device system of carbide acetylene purification |
| CN109621634B (en) * | 2019-01-18 | 2023-08-25 | 西南化工研究设计院有限公司 | Method, device and system for purifying acetylene by calcium carbide |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20150824 |
|
| EXPY | Termination of patent right or utility model |