CN105129889A - Treatment method and device for phenol-containing water of gas generator - Google Patents
Treatment method and device for phenol-containing water of gas generator Download PDFInfo
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- CN105129889A CN105129889A CN201510547562.2A CN201510547562A CN105129889A CN 105129889 A CN105129889 A CN 105129889A CN 201510547562 A CN201510547562 A CN 201510547562A CN 105129889 A CN105129889 A CN 105129889A
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- evaporation tank
- phenol
- interchanger
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- ash separator
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Abstract
The invention relates to a treatment method and device for phenol-containing water of a gas generator, and belongs to the field of sewage treatment. Gas generated by the gas generator enters a dust remover and a heat exchanger sequentially, phenolic water simultaneously enters the dust remover and the heat exchanger to be evaporated, and evaporated phenolic vapor enters the gas generator to serve as a gasifying agent for decomposition through a vapor inlet of the gas generator. According to the treatment method and device, the phenolic vapor is used as the gasifying agent, and therefore the phenolic water drainage problem of the two-stage gas generator is thoroughly solved; the phenol-containing wastewater treatment cost is low, and no other operation cost except for power consumption smaller than 18 kW is needed daily; high-temperature decomposed products of phenols and other organic matter H2 and CO are fully reused, and the calorific value of the gas can be effectively increased by 20-200 kJ/m<3>; the phenol-containing sewage is treated at the high temperature of 1100-1200 DEG C, decomposition is complete, and no secondary pollution exists; the temperature of saturated air on the bottom of the generator is stable, little in influence of temperature variation and convenient to regulate.
Description
Technical field:
The present invention relates to a kind of producer gas generator containing phenol water disposal method and device, belong to sewage treatment area.
Background technology:
Gas station coal gas inter cooler is divided into two-way temperature lowering water, and wherein a road is jacketed type recirculated water, does not contact with coal gas, belongs to clear water circulation (this water is pollution-free).
Another Lu Shuiyu coal gas directly contacts, and belongs to spray-type temperature-fall period, directly contacts generation objectionable impurities, be called as phenol water with coal gas, and it is about 8500-10000mg/L containing phenol amount.Phenol-containing wastewater is primarily of compositions such as objectionable impurities such as phenols, prussiate, tar, suspended substance, sulfide, ammonia nitrogens, and this kind of general coal per ton of phenol water produces about 60-100kg.
In decades, how thoroughly to administer the difficult problem of environmental protection that phenol-containing wastewater is puzzlement gas station always, be engaged in the brainstrust of industrial gas design studies through long-term research and discussion, although groped some effective treatment processs, achieve certain effect, but still there is many weak points.
At present, be roughly divided into the treatment process of phenol water two stages:
First stage: pretreatment process
The pretreatment process applied in gas station, nearly following several: natural subsidence partition method, mechanical filter method, chemical coagulation-sedimentation method, electro-flotation method, centrifugal separation, to add naphtenic acid coke tar refuse absorption method, method of pressed dissolved-air release, jet air float method, negative pressure dephenolize method.
Wherein natural subsidence partition method, can be set directly in the recirculated water process system of gas station, although effect is not very good, but running cost is lower, always by most of gas station as phenol-containing wastewater pretreatment process adopt.Other seven kinds of methods then must process in the equipment arranged separately, and relative processing costs is high.
Subordinate phase: dephenolization treating method
Dephenolization treating method, the namely key link of phenol water disposal.Dephenolization treating method has steam chemistry dephenolize method, steam dephenolize method, burning method, solvent extraction dephenolize method, sulphonated coal absorption method, sulphonated coal absorption method, biochemical process usually, modulation coal water slurry administers method and phenol-containing wastewater administered by coal firing boiler.
Except steam dephenolize method and burning method, all the other several treatment processs are all very strict to the requirement of sewage disinfection treatment, and self technique also more complicated, once invest comparatively large, are difficult to bear for some middle-size and small-size gas stations; By the impact of self dephenolizing process and dephenolize efficiency requirements, the running cost of conventional processing phenol-containing wastewater method is all higher; Except burning method, the object of all the other several methods is all intended to remove the aldehydes matter in sewage, but the water after dephenolize is not pure water body yet, even because reach emission standard containing phenol amount after treatment in water, this water also not necessarily can discharge, and whether this also will reach emission standard depending on the content of other organic compound, inorganic salts etc. in water; Dephenolize efficiency is not high, administers not thorough, easily forms secondary pollution, and this is also another key point that some dephenolization method of restriction is applied.
Summary of the invention:
For the deficiency in solving the problems of the technologies described above, the object of the invention is to, provide one can overcome above-mentioned defect, effective phenol water disposal method easy to use and device.
Treatment process provided by the present invention is, make phenol water enter fly-ash separator and interchanger evaporates while the coal gas that producer gas generator produces enters fly-ash separator and interchanger successively, the phenol steam after evaporation enters producer gas generator by the steam-in of producer gas generator and decomposes as vaporized chemical.
Realize the device of aforesaid method, comprise producer gas generator, producer gas generator connects fly-ash separator and interchanger successively, at the middle part of fly-ash separator, fly-ash separator evaporation tank is installed, at the middle part mounting heat exchanger evaporation tank of interchanger, phenol water pump is entered fly-ash separator evaporation tank and interchanger evaporation tank by recycle pump by phenol pond; The top of fly-ash separator evaporation tank and interchanger evaporation tank is provided with vapour outlet, and vapour outlet connects the steam-in of producer gas generator by pipeline.
The external clear water in phenol pond supplements pipe, and in phenol pond, recycle pump connects inter cooler simultaneously, and inter cooler connects phenol pond by phenol water pipe, and inter cooler has bypass pipe and connects interchanger evaporation tank and fly-ash separator evaporation tank.
Bypass pipe connects the interchanger evaporation tank phenol water inlet of interchanger evaporation tank bottom setting and the interchanger evaporation tank phenol water inlet of fly-ash separator evaporation tank bottom setting respectively.
Interchanger evaporation tank top has interchanger evaporation tank vapour outlet, and fly-ash separator evaporation tank top has fly-ash separator evaporation tank vapour outlet, all connects producer gas generator bottom steam entrance by phenol steam pipe.
Bypass pipe is provided with flowrate control valve.
Fly-ash separator evaporation tank is the ring structure be arranged on shell of dust remover.
Interchanger evaporation tank is arranged on the ring structure on heat exchanger shell.
The invention has the beneficial effects as follows:
Phenol water vapor is used up as vaporized chemical, thoroughly solves the discharge of phenolic water problem of two stage type gas generating furnace; Phenol-containing wastewater processing costs is low.Daily only need is less than outside 18kW power consumption without other running cost; Phenols and other organism high-temperature decomposition products are H2, CO by use fully again, can effectively improve caloric power of gas 20-200kJ/m3; Phenol-containing wastewater, through 1100-1200 DEG C of pyroprocessing, decomposes completely, non-secondary pollution; Furnace bottom saturation air temperature is stablized, little, easy to adjust by temperature variable effect.
Accompanying drawing explanation
Fig. 1 structural representation of the present invention;
In figure: 1, clear water supplements pipe, 2, phenol pond, 3, recycle pump, 4, phenol water pipe, 5, inter cooler, 6, flowrate control valve, 7, interchanger gas exit, 8, softening water entrance, 9, vapour outlet, 10, interchanger gas entry, 11, interchanger, 12, the inner gas flue of interchanger, 13, interchanger evaporation tank vapour outlet, 14, interchanger evaporation tank, 15, interchanger evaporation tank phenol water inlet, 16, fly-ash separator gas entry, 17, fly-ash separator, 18, fly-ash separator evaporation tank, 19, fly-ash separator evaporation tank vapour outlet, 20, producer gas generator, 21, fly-ash separator gas exit, 22, fly-ash separator evaporation tank phenol water inlet, 23, phenol steam pipe.
Embodiment
The present invention makes phenol water enter fly-ash separator and interchanger evaporates while the coal gas produced at producer gas generator enters fly-ash separator and interchanger successively, and the phenol steam after evaporation enters producer gas generator by the steam-in of producer gas generator and decomposes as vaporized chemical.
Concrete device comprises producer gas generator 20, producer gas generator 20 connects fly-ash separator 17 and interchanger 11 successively, at the middle part of fly-ash separator 17, fly-ash separator evaporation tank 18 is installed, at the middle part mounting heat exchanger evaporation tank 14 of interchanger 11, phenol water pump is entered fly-ash separator evaporation tank 18 and interchanger evaporation tank 14 by recycle pump 3 by phenol pond 2; The top of fly-ash separator evaporation tank 18 and interchanger evaporation tank 14 is provided with vapour outlet, and vapour outlet connects the steam-in of producer gas generator 20 by pipeline.
The external clear water in phenol pond 2 supplements pipe 1, and in phenol pond 2, recycle pump 3 connects inter cooler 5 simultaneously, and inter cooler 5 connects phenol pond by phenol water pipe 4, and inter cooler 5 has bypass pipe and connects interchanger evaporation tank 14 and fly-ash separator evaporation tank 18.
Bypass pipe connects the interchanger evaporation tank phenol water inlet 15 of interchanger evaporation tank 14 bottom setting and the fly-ash separator evaporation tank phenol water inlet 22 of fly-ash separator evaporation tank 18 bottom setting respectively.
Interchanger evaporation tank 14 top has interchanger evaporation tank vapour outlet 13, and fly-ash separator evaporation tank 18 top has fly-ash separator evaporation tank vapour outlet 19, all connects producer gas generator 20 bottom steam entrance by phenol steam pipe 23.
Bypass pipe is provided with flowrate control valve 6.
Fly-ash separator evaporation tank 18 is for being arranged on the ring structure on shell of dust remover.
Interchanger evaporation tank 14 is for being arranged on the ring structure on heat exchanger shell.
The present invention as shown in Figure 1 supplements pipe 1 by clear water, phenol pond 2, recycle pump 3, phenol water pipe 4, inter cooler 5, flowrate control valve 6, interchanger gas exit 7, softening water entrance 8, vapour outlet 9, interchanger gas entry 10, interchanger 11, the inner gas flue 12 of interchanger, interchanger phenol water evaporation tank vapour outlet 13, interchanger evaporation tank 14, interchanger evaporation tank phenol water inlet 15, fly-ash separator gas entry 16, fly-ash separator 17, fly-ash separator evaporation tank 18, fly-ash separator evaporation tank vapour outlet 19, producer gas generator 20, fly-ash separator gas exit 21, fly-ash separator evaporation tank phenol water inlet 22 and phenol steam pipe 23 connect to form a phenol water cycle vapo(u)rization system.Wherein, fly-ash separator gas entry 16 on fly-ash separator 17 is connected to producer gas generator 20 by pipeline, the housing outer ring of fly-ash separator 17 arranges an annular fly-ash separator evaporation tank 18, fly-ash separator evaporation tank 18 is provided with fly-ash separator evaporation tank phenol water inlet 22 and fly-ash separator evaporation tank vapour outlet 19, fly-ash separator evaporation tank phenol water inlet 22 is connected to evaporation tank phenol Water flow control valve 6 by pipeline, evaporation tank phenol Water flow control valve 6 sprays water service pipe with inter cooler 5 and is connected, inter cooler spray water service pipe is connected with recycle pump 3, and recycle pump 3 supplies phenol water by phenol pond 2.Fly-ash separator evaporation tank vapour outlet 19 is connected with phenol steam pipe 23 by pipeline, phenol steam pipe 23 is connected with the bottom steam input channel of producer gas generator 20, fly-ash separator gas exit 21 on fly-ash separator 17 is connected to the interchanger gas entry 10 on interchanger 11 by pipeline, coal gas enters another link by the inner gas flue 12 of interchanger through interchanger gas exit 7 discharge, interchanger 11 is provided with softening water entrance 8, softening water enters inner the formation after steam through heat exchange of interchanger and enters another link by vapour outlet 9 discharge, the housing outer ring of interchanger 11 arranges a circular heat exchanger evaporation tank 14, interchanger evaporation tank 14 is provided with interchanger evaporation tank phenol water inlet 15 and interchanger phenol water evaporation tank vapour outlet 13, interchanger evaporation tank phenol water inlet 15 is connected to evaporation tank phenol Water flow control valve 6 by pipeline, interchanger phenol water evaporation tank vapour outlet 13 is connected to phenol steam pipe 23 by pipeline.
Working process of the present invention and principle of work:
Clear water supplements pipe 1 by clear water and enters phenol pond 2, stop supplying water after reaching certain water yield, absorbed water from phenol pond 2 by phenol water-circulating pump 3 and deliver to inter cooler spray water service pipe, clear water forms phenol water after inter cooler coal supply gas spraying cooling, phenol water flows into phenol pond 2 by phenol water pipe 4, and circulate with this, supplement pipe 1 when phenol tank water quantity not sufficient by clear water to carry out the water yield and supplement, inter cooler 5 sprays on water service pipe and has a bypass pipe, bypass pipe is connected with evaporation tank phenol Water flow control valve 6, open evaporation tank phenol Water flow control valve 6 and control flow on request, phenol water is through evaporation tank phenol Water flow control valve 6 and enter interchanger evaporation tank 14 and fly-ash separator evaporation tank 18 by interchanger evaporation tank phenol water inlet 15 and fly-ash separator evaporation tank phenol water inlet 22 respectively by pipeline, after producer gas generator 20 hypomere stove produces coal gas, coal gas enters the fly-ash separator gas entry 16 of fly-ash separator 17, coal gas to enter the interchanger gas entry 10 on interchanger 11 after dedusting and by fly-ash separator gas exit 21 by pipeline, coal gas enters another link by being discharged by interchanger gas exit 7 after interchanger heat exchange, the coal gas produced due to producer gas generator is scorching hot coal gas, so interchanger evaporation tank 14 and fly-ash separator evaporation tank 18 can fully be heated, can be rapidly evaporated after phenol water enters evaporation tank and form phenol water vapor, phenol water vapor flows into phenol steam pipe 23 by interchanger phenol water evaporation tank vapour outlet 13 and fly-ash separator evaporation tank vapour outlet 19 by pipeline respectively, and finally flow into the steam-in bottom producer gas generator 20 by phenol steam pipe 23, enter in producer gas generator 20 as vaporized chemical, under producer fire bed 1100-1200 DEG C of high temperature, the objectionable impuritiess such as phenol are decomposed into CO and H2 in a reducing environment.
Above-mentioned case study on implementation is only for knowing example of the present invention, and is not the restriction to embodiment of the present invention.Still be in protection scope of the present invention belonging to spirit institute's apparent change of amplifying out of the present invention or changing.
Claims (8)
1. a producer gas generator is containing phenol water disposal method, it is characterized in that, make phenol water enter fly-ash separator and interchanger evaporates while the coal gas that producer gas generator produces enters fly-ash separator and interchanger successively, the phenol steam after evaporation enters producer gas generator by the steam-in of producer gas generator and decomposes as vaporized chemical.
2. realize the device of method described in claim 1, it is characterized in that, comprise producer gas generator, producer gas generator connects fly-ash separator and interchanger successively, at the middle part of fly-ash separator, fly-ash separator evaporation tank is installed, at the middle part mounting heat exchanger evaporation tank of interchanger, phenol water pump is entered fly-ash separator evaporation tank and interchanger evaporation tank by recycle pump by phenol pond; The top of fly-ash separator evaporation tank and interchanger evaporation tank is provided with vapour outlet, and vapour outlet connects the steam-in of producer gas generator by pipeline.
3. device according to claim 2, it is characterized in that, the described external clear water in phenol pond supplements pipe, and in phenol pond, recycle pump connects inter cooler simultaneously, inter cooler connects phenol pond by phenol water pipe, and inter cooler has bypass pipe and connects interchanger evaporation tank and fly-ash separator evaporation tank.
4. device according to claim 3, is characterized in that, described bypass pipe connects the interchanger evaporation tank phenol water inlet of interchanger evaporation tank bottom setting and the interchanger evaporation tank phenol water inlet of fly-ash separator evaporation tank bottom setting respectively.
5. device according to claim 2, it is characterized in that, described interchanger evaporation tank top has interchanger evaporation tank vapour outlet, and fly-ash separator evaporation tank top has fly-ash separator evaporation tank vapour outlet, all connects producer gas generator bottom steam entrance by phenol steam pipe.
6. device according to claim 3, is characterized in that, described bypass pipe is provided with flowrate control valve.
7. device according to claim 2, is characterized in that, described fly-ash separator evaporation tank is the ring structure be arranged on shell of dust remover.
8. device according to claim 2, is characterized in that, described interchanger evaporation tank is arranged on the ring structure on heat exchanger shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547562.2A CN105129889A (en) | 2015-08-31 | 2015-08-31 | Treatment method and device for phenol-containing water of gas generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510547562.2A CN105129889A (en) | 2015-08-31 | 2015-08-31 | Treatment method and device for phenol-containing water of gas generator |
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| CN105129889A true CN105129889A (en) | 2015-12-09 |
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| CN201510547562.2A Pending CN105129889A (en) | 2015-08-31 | 2015-08-31 | Treatment method and device for phenol-containing water of gas generator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381630A (en) * | 2007-09-06 | 2009-03-11 | 淄博禹江实业有限公司 | Cold gas production technique for phenol-containing water self treatment |
| CN201433200Y (en) * | 2009-07-09 | 2010-03-31 | 河南金土地煤气工程有限公司 | Environment-friendly air cooling type gas production device with various material energy |
| CN102295958A (en) * | 2011-07-21 | 2011-12-28 | 沧州恒达节能环保设备制造有限公司 | Two-segment cold gas generating device |
| WO2015030156A1 (en) * | 2013-08-30 | 2015-03-05 | 住友ベークライト株式会社 | Method for separating, concentrating and/or collecting phenol, and system for achieving said method |
-
2015
- 2015-08-31 CN CN201510547562.2A patent/CN105129889A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101381630A (en) * | 2007-09-06 | 2009-03-11 | 淄博禹江实业有限公司 | Cold gas production technique for phenol-containing water self treatment |
| CN201433200Y (en) * | 2009-07-09 | 2010-03-31 | 河南金土地煤气工程有限公司 | Environment-friendly air cooling type gas production device with various material energy |
| CN102295958A (en) * | 2011-07-21 | 2011-12-28 | 沧州恒达节能环保设备制造有限公司 | Two-segment cold gas generating device |
| WO2015030156A1 (en) * | 2013-08-30 | 2015-03-05 | 住友ベークライト株式会社 | Method for separating, concentrating and/or collecting phenol, and system for achieving said method |
Non-Patent Citations (1)
| Title |
|---|
| 佟胜华等: "简述两段炉煤气站含酚冷凝水的处理", 《全国煤气科技信息网第九届全网大会论文集》 * |
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Application publication date: 20151209 |