CN101381630A - Cold gas production technique for phenol-containing water self treatment - Google Patents
Cold gas production technique for phenol-containing water self treatment Download PDFInfo
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- CN101381630A CN101381630A CNA200710112919XA CN200710112919A CN101381630A CN 101381630 A CN101381630 A CN 101381630A CN A200710112919X A CNA200710112919X A CN A200710112919XA CN 200710112919 A CN200710112919 A CN 200710112919A CN 101381630 A CN101381630 A CN 101381630A
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- phenol
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- phenol water
- coal gas
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The invention provides a phenol water self treatment cold coal gas production process, wherein the exhausted coal gas from a coal gas generating furnace is subjected to dust removal through a cyclone separator, cooled down by an air cooler, enters an indirect cooler for heat exchange and cooling, enters an electric light-drip catcher and is outputted. The production process is characterized in that a phenol water evaporator is additionally arranged between the cyclone separator and the air cooler, and the sewage containing phenol and oil, which is generated in the condensate in the indirect cooler and the electric light-drip catcher by the coal gas, is subjected to oil-water separation, the separated phenol water enters the phenol water evaporator, the exhausted coal gas enters the cyclone separator and then enters the indirect cooler through the phenol water evaporator, the phenol water is evaporated in the phenol water evaporator by utilizing the waste heat of the coal gas to generate the phenol steam, and the phenol steam is used as a gasifying agent for a gas furnace. In the invention, while the sewage containing phenol is treated, the waste heat of the coal gas is further utilized, thereby avoiding pollution and saving energy.
Description
Technical field
A kind of gas station of the present invention cooled coal gas production technique, particularly a kind of by setting up a phenol water evaporimeter, the coal gas waste heat that utilizes the cooled coal gas station is so that the technology that phenol water obtains by oneself and utilizes.
Background technology
In the domestic producer gas generator, fixed bed coal gas producer is that operation is maximum a kind of.The coal gas of current producer gas generator production mainly adopts cooled coal gas station flow process, the discharged producer gas of producer gas generator (temperature is about 550 ℃), after the cyclonic separator dedusting, enter inter cooler by the air cooler cooling, be cooled to 30-40 ℃ by heat exchange, again through electric fishing is light handle after through booster fan pressurization deliver to drop catcher, then to using the gas workshop.The sensible heat of the heating gas of coming out of the stove of this producer gas generator is a lot, and with the air cooler cooling, this part heat is put in the atmosphere in vain, also spends a large amount of water coolants at inter cooler.Coal gas is light at inter cooler, electric fishing, produced a large amount of phenol-containing wastewaters in the phlegma of drop catcher etc.For two sections producer gas generators, gas in upper segment is handled through electric fishing is burnt, also produces phenol-containing wastewater energetically in electric fishing Jiao.This technology, waste heat loss is big, and cooling water amount is big, power consumption is high, equipment corrodes easily, and phenol-containing wastewater can cause severe contamination to ecotope, and the special disposal difficulty is big, the cost height.
Summary of the invention
Technical problem to be solved by this invention provides a kind of phenol water from the cooled coal gas production technique of handling, make full use of the heat of producer gas generator discharged producer gas, solve the difficult problem of phenol-containing wastewater processing that coal gas produces in condensation process, phenol-containing wastewater is evaporated to contain the phenol saturation steam producer that gives gas to cook vaporized chemical and use, not only save energy but also avoid polluting.
Phenol water of the present invention is from the cooled coal gas production technique of handling, the discharged producer gas of producer gas generator carries out cooling off by air cooler after the dedusting through cyclonic separator, enter inter cooler heat exchange cooling then, light through electric fishing again, drop catcher is handled back output, it is characterized in that between cyclonic separator and air cooler, setting up the phenol water evaporimeter, coal gas is at inter cooler, electric fishing is light, the phenol oily(waste)water that contains that produces in the phlegma of drop catcher carries out oily water separation, isolated phenol water enters the phenol water evaporimeter, described discharged producer gas enters inter cooler through behind the cyclonic separator again by the phenol water evaporimeter, phenol water utilizes the waste heat of coal gas to be evaporated to the phenol water vapor in the phenol water evaporimeter, and phenol water vapor coal supply steam stove is made vaporization agent and used.
For two sections producer gas generators, gas in upper segment is handled through electric fishing is burnt, also produces in the phlegma in electric fishing Jiao to contain the phenol oily(waste)water, carries out oily water separation equally earlier, and isolated phenol water enters the phenol water evaporimeter.
The present invention does not change the main production process of original cooled coal gas, and in the technology of gas production, coal gas enters the phenol water evaporimeter after going out cyclonic separator, utilizes coal gas Heat Treatment phenol water, produces to contain the phenol saturated vapor.Produce contain phenol saturated vapor (phenol water vapor) send into the saturation steam air mixer as vaporized chemical the furnace gas production that gives gas use.Phenol component in the phenol water vapor (temperature is up to 1000 ℃) in producer gas generator gasification layer decomposes, so can not influence gas quality as vaporized chemical.
A kind of preferred construction mode of phenol water evaporimeter of the present invention is: comprise gas chamber, housing, following gas chamber and lower cone, last gas chamber is provided with gas entry, be connected with upper tubesheet between last gas chamber and the housing, be connected with lower tubesheet between following gas chamber and the housing, being provided with tube bank in the housing is connected between upper tubesheet and the lower tubesheet, housing bottom is provided with the phenol water inlet, and top is provided with vapour outlet, and following gas chamber is provided with gas exit.
Described lower cone bottom is for slag-drip opening and have valve.
Phenol water evaporimeter integral body is vertical structure, and following gas chamber bottom has bearing, to be fixed on the basis.
The principle of work of the present invention in the phenol water evaporimeter is:
Coal gas enters the phenol water evaporimeter by the gas entry of last gas chamber, transmits heat through tube bank; Phenol water process phenol steam bag enters phenol water evaporimeter inside by the phenol water inlet of lower housing portion, carry out thermal exchange with the coal gas in the tube bank, finish phenol water evaporative process, the vapour outlet of the phenol water vapor that produces by housing top enter phenol steam bag, the phenol water vapor coal supply steam stove of generation is made vaporization agent and is used.Coal gas through thermal exchange enters air cooler by following gas chamber gas exit output.
Advantage of the present invention:
By in the technological process of production of existing cooled coal gas station, setting up the phenol water evaporimeter, utilize coal gas waste heat heating phenol water, the phenol water vapor of generation is made the usefulness of gas furnace vaporized chemical.When handling phenol-containing wastewater, the coal gas waste heat is utilized more fully, not only saved the energy but also avoided pollution.Because the evaporation phenol water conservancy waste heat of coal gas has alleviated the air cooler load, simultaneously also because of the coal gas part of waste heat is entered vaporized chemical, brings in the stove, has improved gas station thermo-efficiency.Use checking through the how tame user of gas station, this method is effective, and phenol water has obtained whole processing during ordinary production, to gas quality without any influence; Consumption and the manpower of water, electricity, coal have been saved.
Description of drawings
Fig. 1 is a process flow sheet of the present invention;
Fig. 2 is a phenol water evaporimeter structural representation;
Among the figure: manhole 41 steam blowing holes 42 tube bank cleaning hand holes on 33 times manholes of gas chamber 23 fireproof insulation bricks, 24 gas entry 25 upper perforated plates, 26 steam (vapor) outlet 27 housings, 28 tube bank 29 expansion joint 32 times gas chambers of 30 lower perforated plates, 31 sewage draining exits, 34 bearings, 35 lower cones, 36 slag-drip openings, 37 valves, 38 gas exits, the 39 phenol water inlets 40 on 19 softening water pump 20 fire exploring hole packings 21 upper covers 22 of light 5 cyclone separators of 1 pair of section gas generator 2 electric tars 3 inter cooler, 4 electric fishing 6 phenol water evaporimeters 7 air coolers 8 drop catchers 9 booster fans 10 saturated vapor air mixer blower fans 11 saturated vapor air mixers 12 drums 13 phenol steam bags 14 phenol water-circulating pumps 15 oily phenol separator 16 phenol water pump egress filtering devices 17 coal tar oil pumps 18 softening ponds
Embodiment
As Fig. 1, the discharged producer gas of two sections producer gas generators 1 (hypomere heating gas) carries out entering phenol water evaporimeter 6 after the dedusting through cyclonic separator 5, go into air cooler 7 through phenol water evaporimeter 6 is laggard, enter inter cooler 3 heat exchange cooling according to the known technology mode then, again after electric fishing light by 4 (separation light oil constituents) is handled through booster fan 9 pressurizations send into drop catcher 8 (separating oil droplet, water droplet) and handle output then.Epimere cooled coal gas (temperature is greatly between 100～150 ℃) enters inter cooler 3 through electric fishing Jiao (separating tar) processing.Coal gas through drop catcher can also carry out desulfurization processing (known technology) again.With the supporting facility of producer gas generator, all be the known technology mode as drum 12, softening pond 18, belljar valve etc.
As shown in Figure 1, it is more to contain the phenol wetting system in the production coal gas, as electric fishing Jiao 2, inter cooler 3, electric fishing is light by 4, all there are a large amount of oil-containing phenol water in drop catcher 8 grades, the unification of oil-containing phenol water focuses in the oily phenol water separation tank 15 and separates, continue to do inter cooler 3 coal washing gas cycling use of waters by the phenol water section after oily phenol water separation tank 15 separation, rest part enters phenol water evaporimeter 6 and carries out heat exchange, output contains the phenol saturated vapor, enter phenol steam bag 13, send into saturation steam air mixer 11 and enter gas furnace 1, so phenol water has obtained thorough processing and utilization as the vaporized chemical use.
As Fig. 2, the phenol water evaporimeter comprises gas chamber 22, housing 27, following gas chamber 32 and lower cone 35, the cylinder inboard wall of last gas chamber 22 is added with fireproof insulation brick 23 insulations, on cover plate 21 (band insulation) sealing is arranged, inlet plenum is furnished with conventional last manhole 40, steaming out hole 41, tube bank cleaning hand hole 42, gas entry 24.Be connected with upper tubesheet 25 between last gas chamber 22 and the housing 27, be connected with lower tubesheet 30 between following gas chamber 32 and the housing 27, tube bank 28 is welded on upper tubesheet 25, and between the lower tubesheet 30, housing 27 bottoms are provided with phenol water inlet 39, and top is provided with vapour outlet 26.Following gas chamber 32 bottoms connect lower cone 35, and lower cone is connected with scum pipe 36 and valve 37 for 35 times, is furnished with following manhole 33 simultaneously, gas exit 38.Whole phenol water disposal device is vertical, and the bottom has bearing 34 to be fixed on the basis.
Coal gas enters the phenol water evaporimeter by the gas entry 24 of last gas chamber, transmits heat through tube bank 28; Phenol water process phenol steam bag 13 (shown in Figure 1) enter phenol water evaporimeter inside by the phenol water inlet 39 of lower housing portion, carry out thermal exchange with the coal gas in the tube bank, finish phenol water evaporative process, the vapour outlet 26 of the phenol water vapor that produces by housing top enter phenol steam bag 13, the coal supply steam stove is made vaporization agent and is used after the phenol water vapor of generation and the air mixed.Coal gas through thermal exchange enters air cooler 7 by following gas chamber gas exit 38 outputs.
Claims (5)
1, a kind of phenol water is from the cooled coal gas production technique of handling, the discharged producer gas of producer gas generator carries out cooling off by air cooler (7) after the dedusting through cyclonic separator (5), enter inter cooler (3) heat exchange cooling then, again through electric fishing light (4), drop catcher (8) is handled back output, it is characterized in that between cyclonic separator (5) and air cooler (7), setting up phenol water evaporimeter (6), coal gas is in inter cooler (3), electric fishing light (4), the phenol oily(waste)water that contains that produces in the phlegma of drop catcher (8) carries out oily water separation, isolated phenol water enters phenol water evaporimeter (6), described discharged producer gas enters inter cooler (3) through behind the cyclonic separator again by phenol water evaporimeter (6), phenol water utilizes the waste heat of coal gas to be evaporated to the phenol water vapor in the phenol water evaporimeter, and phenol water vapor coal supply steam stove is made vaporization agent and used.
2, cooled coal gas production technique according to claim 1, it is characterized in that described producer gas generator is two section producer gas generators, gas in upper segment is handled through electric fishing Jiao (2), the phenol oily(waste)water that contains that produces in the phlegma in electric fishing Jiao carries out oily water separation, and isolated phenol water enters phenol water evaporimeter (6).
3, cooled coal gas production technique according to claim 1, it is characterized in that described phenol water evaporimeter, comprise gas chamber (22), housing (27), following gas chamber (32) and lower cone (35), last gas chamber (22) is provided with gas entry (24), be connected with upper tubesheet (25) between last gas chamber and the housing, be connected with lower tubesheet (30) between following gas chamber and the housing, being provided with tube bank (28) in the housing is connected between upper tubesheet and the lower tubesheet, housing bottom is provided with phenol water inlet (39), top is provided with vapour outlet (26), and following gas chamber is provided with gas exit (38).
4, cooled coal gas production technique according to claim 3 is characterized in that described lower cone bottom is slag-drip opening (36) and has valve (37).
5, cooled coal gas production technique according to claim 3 is characterized in that described phenol water evaporimeter is a vertical structure, and following gas chamber bottom has bearing (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710112919XA CN101381630A (en) | 2007-09-06 | 2007-09-06 | Cold gas production technique for phenol-containing water self treatment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA200710112919XA CN101381630A (en) | 2007-09-06 | 2007-09-06 | Cold gas production technique for phenol-containing water self treatment |
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| Publication Number | Publication Date |
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| CN101381630A true CN101381630A (en) | 2009-03-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA200710112919XA Pending CN101381630A (en) | 2007-09-06 | 2007-09-06 | Cold gas production technique for phenol-containing water self treatment |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101906327A (en) * | 2010-08-06 | 2010-12-08 | 霍镰泉 | Recovery processing method for phenol water of gas furnace |
| CN101700915B (en) * | 2009-11-06 | 2011-12-28 | 四川师范大学 | Processing method of phenol-cyanogen wastewater generated by coal gas generator |
| CN102925220A (en) * | 2012-11-27 | 2013-02-13 | 淄博义丰机械工程有限公司 | Normal pressure phenol water evaporator used for coal gas generator |
| CN103834441A (en) * | 2014-03-19 | 2014-06-04 | 河北凯跃化工集团有限公司 | Method for recycling coal gasification production sewage |
| CN105129889A (en) * | 2015-08-31 | 2015-12-09 | 淄博唯能新材料科技有限公司 | Treatment method and device for phenol-containing water of gas generator |
| CN106244248A (en) * | 2016-08-18 | 2016-12-21 | 樊晓光 | A kind of coke-stove gas cooling residual heat retracting device and technique |
| CN108913214A (en) * | 2018-08-06 | 2018-11-30 | 唐山科源环保技术装备有限公司 | Gas producer gas station VOCSGas harmless conversion treatment process |
| CN109880656A (en) * | 2019-04-04 | 2019-06-14 | 广东宏陶陶瓷有限公司 | Double stage gas-fired furnace blowing out blowing methods |
| CN111073709A (en) * | 2019-12-17 | 2020-04-28 | 中国科学院工程热物理研究所 | Energy-saving and emission-reducing system of gas producer |
| CN115161077A (en) * | 2022-06-21 | 2022-10-11 | 中冶焦耐(大连)工程技术有限公司 | Straw gasification gas production system and process |
-
2007
- 2007-09-06 CN CNA200710112919XA patent/CN101381630A/en active Pending
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101700915B (en) * | 2009-11-06 | 2011-12-28 | 四川师范大学 | Processing method of phenol-cyanogen wastewater generated by coal gas generator |
| CN101906327A (en) * | 2010-08-06 | 2010-12-08 | 霍镰泉 | Recovery processing method for phenol water of gas furnace |
| CN102925220A (en) * | 2012-11-27 | 2013-02-13 | 淄博义丰机械工程有限公司 | Normal pressure phenol water evaporator used for coal gas generator |
| CN103834441A (en) * | 2014-03-19 | 2014-06-04 | 河北凯跃化工集团有限公司 | Method for recycling coal gasification production sewage |
| CN103834441B (en) * | 2014-03-19 | 2015-11-25 | 河北凯跃化工集团有限公司 | A kind of gasification production waste recoverying and utilizing method |
| CN105129889A (en) * | 2015-08-31 | 2015-12-09 | 淄博唯能新材料科技有限公司 | Treatment method and device for phenol-containing water of gas generator |
| CN106244248A (en) * | 2016-08-18 | 2016-12-21 | 樊晓光 | A kind of coke-stove gas cooling residual heat retracting device and technique |
| CN108913214A (en) * | 2018-08-06 | 2018-11-30 | 唐山科源环保技术装备有限公司 | Gas producer gas station VOCSGas harmless conversion treatment process |
| CN109880656A (en) * | 2019-04-04 | 2019-06-14 | 广东宏陶陶瓷有限公司 | Double stage gas-fired furnace blowing out blowing methods |
| CN111073709A (en) * | 2019-12-17 | 2020-04-28 | 中国科学院工程热物理研究所 | Energy-saving and emission-reducing system of gas producer |
| CN115161077A (en) * | 2022-06-21 | 2022-10-11 | 中冶焦耐(大连)工程技术有限公司 | Straw gasification gas production system and process |
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Effective date of abandoning: 20090311 |
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