CN203043796U - Hydrogen-rich waste gas recycling device of N-methylaniline - Google Patents
Hydrogen-rich waste gas recycling device of N-methylaniline Download PDFInfo
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- CN203043796U CN203043796U CN 201320068146 CN201320068146U CN203043796U CN 203043796 U CN203043796 U CN 203043796U CN 201320068146 CN201320068146 CN 201320068146 CN 201320068146 U CN201320068146 U CN 201320068146U CN 203043796 U CN203043796 U CN 203043796U
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- hydrogen
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- oil furnace
- rich waste
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Abstract
The utility model discloses a hydrogen-rich waste gas recycling device of N-methylaniline. The hydrogen-rich waste gas recycling device is characterized in that from reaction tail gases, a de-light rectifying column, a primary condenser, a secondary condenser, an aniline absorbing tower, a water absorbing tower, a gas storage tank and a thermal oil furnace are sequentially connected in series through pipelines, wherein supplemented fuel is also connected to the pipeline between the gas storage tank and the thermal oil furnace. The hydrogen-rich waste gas recycling device has the beneficial effects that the thermal oil furnace of fuel gas is a combustor of which natural gas and tail gas (containing about 72 percent of hydrogen) are combusted in a mixing manner, the combustor is large in operation elasticity, the ratio of the natural gas to the tail gas can be automatically adjusted according to the tail gas yield of the main device, byproducts in the production process and energy sources are sufficiently utilized, the use amount of the natural gas is reduced, the discharged waste gases are reduced, and a favorable economic benefit is obtained.
Description
Technical field
The utility model belongs to the chemical industry equipment field, particularly relates to a kind of methylphenylamine hydrogen rich off gas recycle device.
Background technology
The petrochemical industry of China and chlor-alkali enterprise are more, and many factories and process units are discharged hydrogen rich off gas (tail gas that hydrogen content is higher).These hydrogen rich off gas are inflammable and explosive, volume big, the transportation difficulty, and contain certain organic matter, and directly discharging pollutes environment; Hydrogen rich off gas has available energy and value again simultaneously.Therefore, adopt the good hydrogen rich off gas of suitable technical finesse, not only be conducive to environmental protection and safety and sanitation, all right energy savings reduces production costs, thereby improves economic benefit of enterprises.
At present; the middle and small scale alkylation is produced in the methylphenylamine production technology; how to do fuel as the mode of heat supply in reaction workshop section, the rectifying workshop section with electrical heating heat-conducting oil furnace or natural gas; this method consumes power is big, specific energy consumption is too high and produce in the accessory substance hydrogen rich off gas can not take full advantage of; directly emptying causes shortcomings such as atmosphere pollution, runs counter to the policy that National Development and Reform Committee requires industry energy conservation to reduce discharging.
Therefore need a kind of energy that takes full advantage of, reduce the consumption of natural gas, reduce effluxing waste gas, improve the methylphenylamine hydrogen rich off gas recycle device of economic benefit of enterprises.
Summary of the invention
Goal of the invention of the present utility model is: at the problem of above-mentioned existence, provide a kind of energy that takes full advantage of, reduce the consumption of natural gas, reduce effluxing waste gas, improve the methylphenylamine hydrogen rich off gas recycle device of economic benefit of enterprises.
The technical solution adopted in the utility model is such: a kind of methylphenylamine hydrogen rich off gas recycle device, it is characterized in that: risen by lightness-removing column, be in series with first-stage condenser, secondary condenser, aniline absorption tower, water absorption tower, air accumulator and heat-conducting oil furnace successively by pipeline, also be connected to the postcombustion jar on the pipeline of reservoir jar and heat-conducting oil furnace.
What store in the described postcombustion jar is natural gas.
In sum, owing to adopted technique scheme, the beneficial effects of the utility model are: the combustion gas heat-conducting oil furnace adopts the burner of natural gas and tail gas (hydrogeneous about 72%) multifuel combustion, operation of combustors elasticity is big, can produce the tail gas amount according to main device, regulates natural gas and tail gas proportioning automatically, take full advantage of the accessory substance in the production, take full advantage of the energy, reduce the consumption of natural gas, reduce effluxing waste gas.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is done detailed explanation.
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the utility model, and be not used in restriction the utility model.
Embodiment 1:
As shown in Figure 1, a kind of methylphenylamine hydrogen rich off gas recycle device, risen by lightness-removing column, be in series with first-stage condenser, secondary condenser, aniline absorption tower, water absorption tower, air accumulator and heat-conducting oil furnace successively by pipeline, also be connected to the postcombustion jar on the pipeline of reservoir jar and heat-conducting oil furnace.
Enter lightness-removing column from the light component of reactor outlet segregator (main hydrogen, carbon monoxide, carbon dioxide, methyl alcohol, water, minor amounts of aniline class material) and remove most of aniline category matter, through first-stage condenser, secondary condenser is removed most of methyl alcohol, water, remove remaining small amount of methanol through the aniline absorption tower, enter air accumulator through water absorption tower removal minor amounts of aniline and deliver to heat-conducting oil furnace burning utilization.When tail gas was not enough, natural gas carried out multifuel combustion as postcombustion.
The beneficial effect of present embodiment is: can produce the tail gas amount according to main device, regulate natural gas and tail gas proportioning automatically, take full advantage of the accessory substance in the production, take full advantage of the energy, reduce the consumption of natural gas, reduce effluxing waste gas.
The above only is preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of within spirit of the present utility model and principle, doing, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (2)
1. methylphenylamine hydrogen rich off gas recycle device, it is characterized in that: risen by lightness-removing column, be in series with first-stage condenser, secondary condenser, aniline absorption tower, water absorption tower, air accumulator and heat-conducting oil furnace successively by pipeline, also be parallel with the postcombustion jar on the pipeline between reservoir jar and the heat-conducting oil furnace.
2. methylphenylamine hydrogen rich off gas recycle device as claimed in claim 1, what it is characterized in that storing in the described postcombustion jar is natural gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068146 CN203043796U (en) | 2013-02-06 | 2013-02-06 | Hydrogen-rich waste gas recycling device of N-methylaniline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320068146 CN203043796U (en) | 2013-02-06 | 2013-02-06 | Hydrogen-rich waste gas recycling device of N-methylaniline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203043796U true CN203043796U (en) | 2013-07-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320068146 Expired - Lifetime CN203043796U (en) | 2013-02-06 | 2013-02-06 | Hydrogen-rich waste gas recycling device of N-methylaniline |
Country Status (1)
| Country | Link |
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| CN (1) | CN203043796U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666520A (en) * | 2019-01-28 | 2019-04-23 | 安庆市泰发能源科技有限公司 | Butane dehydrogenation hydrogen rich off gas recycle device |
| CN110252088A (en) * | 2019-06-25 | 2019-09-20 | 运城晋腾化学科技有限公司临猗分公司 | The recovery system of aniline in a kind of tail gas |
-
2013
- 2013-02-06 CN CN 201320068146 patent/CN203043796U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109666520A (en) * | 2019-01-28 | 2019-04-23 | 安庆市泰发能源科技有限公司 | Butane dehydrogenation hydrogen rich off gas recycle device |
| CN110252088A (en) * | 2019-06-25 | 2019-09-20 | 运城晋腾化学科技有限公司临猗分公司 | The recovery system of aniline in a kind of tail gas |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130710 |