CN206486482U - Hydrogasification rough coal air cooling system - Google Patents
Hydrogasification rough coal air cooling system Download PDFInfo
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- CN206486482U CN206486482U CN201720174809.5U CN201720174809U CN206486482U CN 206486482 U CN206486482 U CN 206486482U CN 201720174809 U CN201720174809 U CN 201720174809U CN 206486482 U CN206486482 U CN 206486482U
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Abstract
The utility model discloses a kind of hydrogasification rough coal air cooling system, it includes first-class heat exchanger, deduster, secondary heat exchanger, one-level gas-liquid separator, three-level heat exchanger, condenser, two grades of gas-liquid separators.Advantage of the present utility model：Entirely cooling system is to carry out dividing in three heat exchangers that by hydrogen and raw gas heat exchange can be segmented, on the one hand, rationally recycles the heat of raw gas carrying to make low temperature hydrogen heat up, and then cancels hydrogen heater, cuts the energy consumption of hydrogen heater；On the other hand, the temperature of high temperature rough gas is reduced using low temperature hydrogen, cancels the useless pot of original raw gas and cooling device, the supply of outside heat is reduced, and then reduces cooling load, reduce cost input, cooling process more optimizes rationally.
Description
Technical field：
The utility model is related to hydrogasification technical field, relates in particular to a kind of hydrogasification raw gas cooling system
System.
Background technology：
Hydrogasification refers to that carbon compound and hydrogen are anti-under the conditions of middle temperature (700-1000 DEG C) and high pressure (5-10MPa)
Should, the process of raw gas of the generation rich in methane, high added value aromatic hydrocarbons oil product and high heating value semicoke.Wherein, needed for hydrogasification
High-temperature hydrogen provided by hydrogen heater, hydrogen heater energy consumption is big；And gasification furnace raw gas outlet temperature is up to 700-
850 DEG C, it is necessary to carry out dedusting cooling, existing hydrogasification dedusting cooling technique is that hydrogasification stove raw gas is exported into discharge
Raw gas first passes through whirlwind rough dusting, then gives up pot byproduct steam by raw gas to reclaim heat, then by dedusting and enter
One step is cooled down, and above-mentioned dedusting cooling technique has dedusting cooling load greatly, the problem of cost is high.
Utility model content：
The purpose of this utility model is to provide a kind of hydrogasification rough coal air cooling system for reducing and cooling down load.
The utility model is implemented by following technical scheme：Hydrogasification rough coal air cooling system, it include first-class heat exchanger,
Deduster, secondary heat exchanger, one-level gas-liquid separator, three-level heat exchanger, condenser, two grades of gas-liquid separators, the one-level are changed
The thermal medium entrance of hot device is connected by pipeline with hydrogasification stove gas outlet, and the thermal medium outlet of the first-class heat exchanger passes through
Pipeline is connected with deduster air inlet；The deduster gas outlet is connected by the thermal medium entrance of pipeline and the secondary heat exchanger
Logical, the thermal medium outlet of the secondary heat exchanger is connected by pipeline with the air inlet of the one-level gas-liquid separator；Described one
The gas outlet of level gas-liquid separator is connected by pipeline with the thermal medium entrance of the three-level heat exchanger, the three-level heat exchanger
Thermal medium outlet is connected by pipeline with the condenser air inlet, and the leakage fluid dram of the condenser passes through pipeline and described two grades
The air inlet connection of gas-liquid separator；The cold medium outlet of the three-level heat exchanger is situated between by the way that pipeline and the secondary heat exchanger are cold
Matter entrance is connected, and the secondary heat exchanger cold medium outlet is connected by pipeline with the first-class heat exchanger cold medium entrance, institute
The outlet of first-class heat exchanger cold medium is stated to connect with the hydrogen inlet of the hydrogasification stove by pipeline.
Advantage of the present utility model：Whole cooling system is that a point energy is carried out in three heat exchangers by hydrogen and raw gas
Segmentation heat exchange, on the one hand, rationally recycle the heat of raw gas carrying to make low temperature hydrogen heat up, and then cancel hydrogen heating
Device, cuts the energy consumption of hydrogen heater；On the other hand, the temperature of high temperature rough gas is reduced using low temperature hydrogen, is cancelled original
The useless pot of raw gas and cooling device, reduce the supply of outside heat, and then reduce cooling load, reduce cost input, cooling
Technological process more optimizes rationally.
Brief description of the drawings：
Fig. 1 is overall structure diagram of the present utility model.
First-class heat exchanger 1, deduster 2, secondary heat exchanger 3, one-level gas-liquid separator 4, three-level heat exchanger 5, gas-liquid condensation
Separator 6, hydrogasification stove 7.
Embodiment：
As shown in figure 1, hydrogasification rough coal air cooling system, it includes first-class heat exchanger 1, deduster 2, secondary heat exchanger
3rd, one-level gas-liquid separator 4, three-level heat exchanger 5, gas-liquid condensation separator 6, the thermal medium entrance of first-class heat exchanger 1 pass through pipeline
Connected with the gas outlet of hydrogasification stove 7, the thermal medium outlet of first-class heat exchanger 1 is connected by pipeline with the air inlet of deduster 2；Remove
The gas outlet of dirt device 2 is connected by pipeline with the thermal medium entrance of secondary heat exchanger 3, and the thermal medium outlet of secondary heat exchanger 3 passes through
Pipeline is connected with the air inlet of one-level gas-liquid separator 4；The gas outlet of one-level gas-liquid separator 4 passes through pipeline and three-level heat exchanger
5 thermal medium entrance connection, the thermal medium outlet of three-level heat exchanger 5 is connected by pipeline with the air inlet of gas-liquid condensation separator 6；
The cold medium outlet of three-level heat exchanger 5 is connected by pipeline with the cold medium entrance of secondary heat exchanger 3, the cold medium of secondary heat exchanger 3
Outlet is connected by pipeline with the cold medium entrance of first-class heat exchanger 1, and the outlet of the cold medium of first-class heat exchanger 1 passes through pipeline and hydrogenation
Change the hydrogen inlet connection of stove 7.
Operation principle：Carbon compound and hydrogen middle temperature (700-1000 DEG C) and high pressure (5- in hydrogasification stove 7
Reacted under the conditions of 10MPa), the process of raw gas of the generation rich in methane, high added value aromatic hydrocarbons oil product and high heating value semicoke.Its
In, the high temperature rough gas for 750-850 DEG C containing semicoke that hydrogasification stove 7 is produced initially enters first-class heat exchanger 1 with coming from two
200-250 DEG C of hydrogen of level heat exchanger 3 is exchanged heat, and 500-600 DEG C of raw gas enters the progress gas-solid of deduster 2 after heat exchange
Separation, 600-650 DEG C of hydrogen enters the completion hydrogasification reaction of hydrogasification stove 7 after being exchanged heat through first-class heat exchanger 1；Removing half
Defocused clean raw gas is exchanged heat into secondary heat exchanger 3 with 100-200 DEG C of the hydrogen from three-level heat exchanger 5, slightly
Coal gas is further cooled down, and the part light oil in raw gas reaches dew point and separated out that partly the raw gas containing oil product enters one
Level gas-liquid separator 4 carries out gas-liquid separation；Wherein, three-level heat exchanger 5 is entered after gas phase portion is discharged through one-level gas-liquid separator 4
Hydrogen with 50-100 DEG C outside battery limit (BL) is exchanged heat, and raw gas enters two grades of gas-liquid separators 7 after further being cooled down；
Gas phase portion enters gas-liquid condensation separator 6, the raw gas in gas-liquid condensation separator 6 after being discharged through two grades of gas-liquid separators 7
In most of oil product be condensed, and the raw gas isolated then enter downstream unit.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc. should be included in the utility model
Protection domain within.
Claims (1)
1. hydrogasification rough coal air cooling system, it is characterised in that it includes first-class heat exchanger, deduster, secondary heat exchanger, one
Level gas-liquid separator, three-level heat exchanger, gas-liquid condensation separator, the thermal medium entrance of the first-class heat exchanger by pipeline with plus
Hydrogen gasification furnace gas outlet is connected, and the thermal medium outlet of the first-class heat exchanger is connected by the air inlet of pipeline and the deduster
It is logical；The gas outlet of the deduster is connected by pipeline with the thermal medium entrance of the secondary heat exchanger, the secondary heat exchanger
Thermal medium outlet connected by pipeline with the air inlet of the one-level gas-liquid separator；The outlet of the one-level gas-liquid separator
Mouth is connected by pipeline with the thermal medium entrance of the three-level heat exchanger, and the thermal medium outlet of the three-level heat exchanger passes through pipeline
Connected with the gas-liquid condensation separator air inlet；The cold medium outlet of the three-level heat exchanger is changed by pipeline with described two grades
Hot device cold medium entrance connection, the secondary heat exchanger cold medium outlet passes through pipeline and the first-class heat exchanger cold medium entrance
Connection, the first-class heat exchanger cold medium outlet is connected by pipeline with the hydrogen inlet of the hydrogasification stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174809.5U CN206486482U (en) | 2017-02-24 | 2017-02-24 | Hydrogasification rough coal air cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720174809.5U CN206486482U (en) | 2017-02-24 | 2017-02-24 | Hydrogasification rough coal air cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206486482U true CN206486482U (en) | 2017-09-12 |
Family
ID=59762416
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720174809.5U Active CN206486482U (en) | 2017-02-24 | 2017-02-24 | Hydrogasification rough coal air cooling system |
Country Status (1)
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| CN (1) | CN206486482U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109971513A (en) * | 2019-03-25 | 2019-07-05 | 武汉科技大学 | The multistage cooling technique and device of coal oven dithio-gas |
| CN110055113A (en) * | 2018-05-18 | 2019-07-26 | 新能能源有限公司 | The pretreatment system of fluidized-bed gasification furnace production raw gas |
-
2017
- 2017-02-24 CN CN201720174809.5U patent/CN206486482U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110055113A (en) * | 2018-05-18 | 2019-07-26 | 新能能源有限公司 | The pretreatment system of fluidized-bed gasification furnace production raw gas |
| CN110055113B (en) * | 2018-05-18 | 2023-12-12 | 新能能源有限公司 | Pretreatment system for crude gas produced by fluidized bed gasifier |
| CN109971513A (en) * | 2019-03-25 | 2019-07-05 | 武汉科技大学 | The multistage cooling technique and device of coal oven dithio-gas |
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