CN204529768U - Coal liquifaction system - Google Patents
Coal liquifaction system Download PDFInfo
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- CN204529768U CN204529768U CN201520119054.XU CN201520119054U CN204529768U CN 204529768 U CN204529768 U CN 204529768U CN 201520119054 U CN201520119054 U CN 201520119054U CN 204529768 U CN204529768 U CN 204529768U
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Abstract
The utility model discloses the coal liquifaction system that a kind of environment is friendly, can promote liquefaction quality.Coal conversion stove, furnace gas dust-removal system and the furnace gas cooling oil recovery system connected successively before and after coal liquifaction system of the present utility model comprises, described furnace gas dust-removal system comprises and the dust content in furnace gas can be controlled at 10 to 20mg/Nm
3following gas-filtering device, described gas-filtering device adopts refractory metal porous material filtering element or refractory ceramics porous material filtering element; Described furnace gas cooling oil recovery system comprises at least two-stage furnace gas Oil injection cooling and receives oily unit, and furnace gas Oil injection cooling at different levels is received fluid that oily unit uses furnace gas cooling to produce and carried out spraying cooling for heat-eliminating medium to follow-up furnace gas and reclaim cooling the fluid obtained.This coal liquifaction system can promote liquefaction quality, reduce environmental pollution.
Description
Technical field
The utility model relates to a kind of coal liquifaction system.Described coal liquifaction system be a kind of coal conversion stove furnace gas is carried out udst separation after cool again and reclaim the Coal Chemical Industry system obtaining fluid.Described coal conversion stove is mainly the coal gas retort implementing coal distillation process.
Background technology
Coal gas retort, furnace gas dust-removal system and the furnace gas cooling oil recovery system connected successively before and after current a kind of coal destructive distillation liquefaction system comprises, wherein, furnace gas dust-removal system adopts the two-step filter be made up of gravitational precipitator and tornado dust collector, furnace gas cooling oil recovery system comprises the two-stage cooling unit be made up of waste heat boiler and ammonia spray tower, and described ammonia spray tower connects water-and-oil separator.The operational process of this coal destructive distillation liquefaction system is: first the furnace gas that coal gas retort generates enters gravitational precipitator and tentatively gather dust, then enter tornado dust collector and carry out secondary dust collection, the Purge gas that tornado dust collector are discharged enters waste heat boiler again and carries out one-level cooling, waste heat boiler expellant gas enters ammonia spray tower and carries out secondary cooling, and the profit of ammonia spray tower bottom enters water-and-oil separator and carries out oily water separation process.Above-mentioned coal destructive distillation liquefaction system, the efficiency of dust collection of its furnace gas dust-removal system is not high, have impact on liquefaction quality; Also need Waste Water Treatment is installed, increase facility investment and running cost; Also there is the problems such as environmental pollution is more serious.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of to environment friendliness, the coal liquifaction system that can promote liquefaction quality.
Coal conversion stove, furnace gas dust-removal system and the furnace gas cooling oil recovery system connected successively before and after coal liquifaction system of the present utility model comprises, described furnace gas dust-removal system comprises and the dust content in furnace gas can be controlled at 10 to 20mg/Nm
3following gas-filtering device, described gas-filtering device adopts refractory metal porous material filtering element or refractory ceramics porous material filtering element; Described furnace gas cooling oil recovery system comprises at least two-stage furnace gas Oil injection cooling and receives oily unit, and furnace gas Oil injection cooling at different levels is received fluid that oily unit uses furnace gas cooling to produce and carried out spraying cooling for heat-eliminating medium to follow-up furnace gas and reclaim cooling the fluid obtained.
In above-mentioned coal liquifaction system, the dust content in furnace gas can be controlled at 10 to 20mg/Nm because its furnace gas dust-removal system comprises
3following gas-filtering device and this gas-filtering device adopt refractory metal porous material filtering element or refractory ceramics porous material filtering element, therefore, this gas-filtering device had both had higher efficiency of dust collection thus had promoted liquefaction quality, reduction environmental pollution, also directly can carry out high temperature filtration when furnace gas temperature is very high simultaneously, thus the high boiling substance in furnace gas can be avoided to separate out when filtering, both prevent the contaminated blocking of filtering element, also improve follow-up receipts oil efficiency simultaneously; The furnace gas Oil injection coolings at different levels of its furnace gas cooling oil recovery system are received the fluid that oily unit uses furnace gas cooling to produce and are carried out spraying cooling for heat-eliminating medium to follow-up furnace gas and reclaim cooling the fluid obtained, avoid the ammonia spray type of cooling produce need carry out the series of problems such as oily water separation and wastewater treatment, the cooling simplifying oil is reclaimed, and contributes to the quality promoting oil.
A kind of embodiment of oily unit is received as above-mentioned furnace gas Oil injection cooling, described furnace gas Oil injection cooling at different levels is received oily unit and is comprised washing oil tower, storage tank, transfer pump and oil cooler, the furnace gas that the inlet end of described washing oil tower and exhaust side are series at whole coal liquifaction system runs on stream, the oil inlet end of described storage tank connects with the oil extraction end of corresponding washing oil tower bottom, and described transfer pump and oil cooler are connected to form with corresponding washing oil tower the spray oil circulation supply circuit that this furnace gas Oil injection cooling receives oily unit.The operational process that this furnace gas Oil injection cooling receives oily unit is: be that heat-eliminating medium carries out spraying cooling to it with fluid after furnace gas enters washing oil tower, fluid under washing enters washing oil tower bottom, part fluid enters storage tank by pipeline and stores, and another part fluid returns the heat-eliminating medium as spraying cooling in washing oil tower under the effect of transfer pump after oil cooler cooling; Gas after washing oil tower spraying cooling is discharged from this washing oil tower again.This furnace gas Oil injection cooling is received oily unit and is achieved spray fluid and utilize.
Be described further below in conjunction with the drawings and specific embodiments.The aspect that the utility model is additional and advantage will part provide in the following description, and part will become obvious from the following description, or be recognized by practice of the present utility model.
Accompanying drawing explanation
Fig. 1 is the structure &processes schematic flow sheet of a kind of embodiment of the utility model coal liquifaction system.
Embodiment
As shown in Figure 1, coal conversion stove (not shown), furnace gas dust-removal system 100 and the furnace gas cooling oil recovery system 200 connected successively before and after coal liquifaction system comprises, wherein, described coal conversion hotplate body is the coal gas retort implementing coal distillation process, more specifically, described coal conversion stove is the coal gas retort implementing Coal at Low Temperature distillation process or coal medium temperature carbonization technique, described gas dust-removal system 100 comprises mechanical dust collector 110 and gas-filtering device 120, mechanical dust collector 110 adopts gravitational precipitator or tornado dust collector, this mechanical dust collector 110 treat that dedusting gas inlet end is connected with coal conversion stove, the gas exhaust of the dedusting end of described mechanical dust collector 110 is connected with the gas inlet end to be filtered of described gas-filtering device 120, and this gas-filtering device 120 adopts sintering FeAl base intermetallic compound porous material filtering element, described furnace gas cooling oil recovery system 200 comprises three grades of furnace gas Oil injection coolings and receives oily unit 210, it is that furnace gas Oil injection cooling for reclaiming heavy oil receives oily unit that first step furnace gas Oil injection cooling wherein receives oily unit 210a, second stage furnace gas Oil injection cooling is received oily unit 210b and is received oily unit for the furnace gas Oil injection cooling of oil in reclaiming, it is that furnace gas Oil injection cooling for reclaiming light oil receives oily unit that third stage furnace gas Oil injection cooling receives oily unit 210c, above-mentioned three grades of furnace gas Oil injection coolings are received oily unit 210 and are included washing oil tower 211, storage tank 212, transfer pump 213 and oil cooler 214, the furnace gas that the inlet end of described washing oil tower 211 and exhaust side are series at whole coal liquifaction system runs on stream, the oil inlet end of described storage tank 212 connects with the oil extraction end bottom corresponding washing oil tower 211, described transfer pump 213 and oil cooler 214 are connected to form with corresponding washing oil tower 211 the spray oil circulation supply circuit that this furnace gas Oil injection cooling receives oily unit 210.
Embodiment 1
Coal conversion stove is the coal gas retort implementing Coal at Low Temperature distillation process, adopt the coal liquifaction system shown in above-mentioned Fig. 1, first high-temperature furnace gas enters mechanical dust collector 110 (specifically adopting tornado dust collector) and tentatively gathers dust, then enter gas-filtering device 120 and carry out high-precision filtration, gas-filtering device 120 dust content that filtering gas has exported is 10mg/Nm
3below, gas temperature is about 550 DEG C; The gas temperature that first step furnace gas Oil injection cooling receives oily unit 210a exhaust side is 250 to 280 DEG C, and first step furnace gas Oil injection cooling receives the heavy oil of storage tank 212 adduction of oily unit 210a; Second stage furnace gas Oil injection cooling receives the gas temperature > 100 DEG C of oily unit 210b exhaust side, and second stage furnace gas Oil injection cooling receives the middle oil of storage tank 212 adduction of oily unit 210b; Third stage furnace gas Oil injection cooling receives the light oil of storage tank 212 adduction of oily unit 210c, and third stage furnace gas Oil injection cooling is received in the gas in the exhaust side discharge of oily unit 210c and is mainly CH
4, C
2, C
3, C
4deng light gas.
Claims (7)
1. coal liquifaction system, coal conversion stove, furnace gas dust-removal system (100) and the furnace gas cooling oil recovery system (200) that connect successively before and after comprising, is characterized in that: described furnace gas dust-removal system (100) comprises and the dust content in furnace gas can be controlled at 10 to 20mg/Nm
3following gas-filtering device (120), described gas-filtering device (120) adopts refractory metal porous material filtering element or refractory ceramics porous material filtering element; Described furnace gas cooling oil recovery system (200) comprises at least two-stage furnace gas Oil injection cooling and receives oily unit (210), and furnace gas Oil injection cooling at different levels is received fluid that oily unit (210) uses furnace gas cooling to produce and carried out spraying cooling for heat-eliminating medium to follow-up furnace gas and reclaim cooling the fluid obtained.
2. coal liquifaction system as claimed in claim 1, it is characterized in that: described furnace gas Oil injection cooling at different levels is received oily unit (210) and comprised washing oil tower (211), storage tank (212), transfer pump (213) and oil cooler (214), the furnace gas that the inlet end of described washing oil tower (211) and exhaust side are series at whole coal liquifaction system runs on stream, the oil inlet end of described storage tank (212) connects with the oil extraction end of corresponding washing oil tower (211) bottom, described transfer pump (213) and oil cooler (214) are connected to form with corresponding washing oil tower (211) the spray oil circulation supply circuit that this furnace gas Oil injection cooling receives oily unit (210).
3. coal liquifaction system as claimed in claim 1 or 2, it is characterized in that: described furnace gas cooling oil recovery system (200) comprises three grades of furnace gas Oil injection coolings and receives oily unit (210), first step furnace gas Oil injection cooling wherein receives oily unit (210a) for receive oily unit for the furnace gas Oil injection cooling reclaiming heavy oil, it is receive oily unit for the furnace gas Oil injection cooling of oil in reclaiming that second stage furnace gas Oil injection cooling receives oily unit (210b), and third stage furnace gas Oil injection cooling receives oily unit (210c) for receive oily unit for the furnace gas Oil injection cooling reclaiming light oil.
4. coal liquifaction system as claimed in claim 1 or 2, it is characterized in that: described furnace gas dust-removal system (100) comprises mechanical dust collector (110), described mechanical dust collector (110) treat that dedusting gas inlet end is connected with coal conversion stove, the gas exhaust of the dedusting end of described mechanical dust collector (110) is connected with the gas inlet end to be filtered of described gas-filtering device (120).
5. coal liquifaction system as claimed in claim 4, is characterized in that: described mechanical dust collector (110) is gravitational precipitator or tornado dust collector.
6. coal liquifaction system as claimed in claim 1 or 2, is characterized in that: described coal conversion hotplate body is the coal gas retort implementing coal distillation process.
7. coal liquifaction system as claimed in claim 6, is characterized in that: described coal conversion stove is the coal gas retort implementing Coal at Low Temperature distillation process or coal medium temperature carbonization technique.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520119054.XU CN204529768U (en) | 2015-02-28 | 2015-02-28 | Coal liquifaction system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520119054.XU CN204529768U (en) | 2015-02-28 | 2015-02-28 | Coal liquifaction system |
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| CN204529768U true CN204529768U (en) | 2015-08-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460890A (en) * | 2015-12-03 | 2016-04-06 | 东华工程科技股份有限公司 | Method for producing hydrogen by converting membrane separation impermeable gas obtained after membrane separation of oil wash dry gas used in coal liquefaction project |
-
2015
- 2015-02-28 CN CN201520119054.XU patent/CN204529768U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105460890A (en) * | 2015-12-03 | 2016-04-06 | 东华工程科技股份有限公司 | Method for producing hydrogen by converting membrane separation impermeable gas obtained after membrane separation of oil wash dry gas used in coal liquefaction project |
| CN105460890B (en) * | 2015-12-03 | 2018-03-13 | 东华工程科技股份有限公司 | A kind of method of UF membrane impermeable gas reforming hydrogen manufacturing of the coal liquifaction project oil wash dry gas after UF membrane |
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