CN102515407A - Gas station phenol water processing process - Google Patents
Gas station phenol water processing process Download PDFInfo
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- CN102515407A CN102515407A CN201110429314XA CN201110429314A CN102515407A CN 102515407 A CN102515407 A CN 102515407A CN 201110429314X A CN201110429314X A CN 201110429314XA CN 201110429314 A CN201110429314 A CN 201110429314A CN 102515407 A CN102515407 A CN 102515407A
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Abstract
The invention which discloses a gas station phenol water processing process relates to gas station sewage processing and solves problems of low energy utilization rate, bad phenol water processing effect and short equipment service life of the prior art. The process of the invention comprises the following steps: precipitating phenol water in a phenol water precipitating tank, precipitating the phenol water in a heavy tar precipitating tank, filtering the phenol water in a phenol water filtering tank, and allowing the phenol water to flow into an oil-water separator; pumping the phenol water into a phenol water heater by a water pump, heating by inletting steam to the phenol water heater to make the phenol water enter a phenol water steaming tower, atomizing by a nozzle, and combusting through introducing the phenol water into a gas producer by air; and simultaneously pumping partial clean phenol water into an intercooler, the gas producer, a cyclone deduster and an air cooling tower by the water pump. The process which adopts an air phenol water evaporation saturation method to process gas station phenol-containing sewage has the advantages of high energy utilization rate, good phenol water processing effect and the like, so the process can be conveniently used for bitumite, anthracite and gas station phenol water processing.
Description
Technical field
The present invention relates to the gas station WWT, particularly the treatment process of gas station phenol sewage.
Background technology
Gasification is one of technology of coal clean utilization, and coal gas still is the alternative fuel of fuel oil, also is the alternative materials of petroleum chemicals.Gasification is widely used in the production of industrial fuel gas such as machinery, metallurgy, pottery, glass, silt.But the phenol-containing wastewater that gas station produces is handled, and is the technical barrier of this area.Phenol water contains all cpds (phenols, ammonia, prussiate, sulfide, oils, tar) and mechanical impurity etc.Phenol water is mainly derived from the water of condensation in the coal gas naturally cooling, and equipment is interrupted the washing water of flushing, the mixing water in the tar pool.Because phenol water contains hazardous substance, can not efflux, so need phenol water is handled especially.
The gas station phenol water treatment technique of prior art has:
1. burning method.Phenol-containing wastewater is sprayed into incinerator, make phenol organic matter that oxidizing reaction take place under the high temperature about 1100 ℃, finally generate CO
2And H
2The O discharging.This method is simple, and is easy to operate, but energy consumption is bigger, do not use basically at present.
2. SX dephenolize method.Divide extraction and desorb two portions, utilize extraction agent that phenol is extracted from sewage, contain the phenol extraction agent and become to contain sodium phenolate with alkaline reaction.Water after this method is handled also contains phenol, and the loss of extraction agent can cause secondary pollution, and running cost is also high, does not use basically at present.
3. coal water slurry facture.In Production of Ceramics factory, phenol water is made additional water as coal water slurry, but because production technique is different, some other industries are not suitable for, and are of limited application.
4. also have resin dephenolize method and biochemical process, their production technique is complicated, and conditional request is strict, and processing cost is quite high.
In addition, prior art has behind the phenol-containing wastewater preliminary sedimentation, squeezes into the treatment process of tornado dust collector water jacket vaporization, and not only energy utilization rate is low for this method (as shown in Figure 1), and the phenol water disposal weak effect, and is prone to make equipment to stop up, and influences service life of equipment.
Summary of the invention
The objective of the invention is to overcome the shortcoming of prior art, a kind of gas station phenol water treatment technique is provided, solve existing gas station phenol sewage treatment process, energy utilization rate is low, phenol water disposal weak effect, the short technical problem of service life of equipment.
The present invention realizes through following technical scheme:
A kind of gas station phenol water treatment technique is characterized in that: said process step is following:
At first, the phenol water that producer gas generator, tornado dust collector, air-cooled tower, inter cooler produce gets into phenol water precipitation pond carry out preliminary sedimentation after, get into the heavy tar settling tank again and precipitate, after getting into phenol water filtering pond again and filtering, flow into water-and-oil separator.
Then; Phenol water gets into phenol water storage pool, and pressurization is squeezed in the phenol water heater through water pump, and the residual steam that produces to phenol water heater feeding drum heats phenol water; After being heated to 80～90 ℃, the phenol water temp gets into phenol water evaporator tower; Fully atomize through cat head stainless steel nozzle, and the air that the air-blaster drum advances is reached capacity with atomizing phenol water thorough mixing in phenol water evaporator tower, bring producer gas generator into by air and burn as vaporized chemical.
Simultaneously, a part clean phenol water is after treatment squeezed into inter cooler through water pump, and as the coal gas spraying cooling water, a part clean phenol water is after treatment squeezed into producer gas generator, tornado dust collector, air-cooled tower through water pump, uses as water seal.
The present invention adopts air phenol water evaporation saturation method to handle the gas station phenol-containing wastewater, compared with prior art, has the following advantages and beneficial effect:
(1) the recyclable drum residual steam of the present invention makes full use of soft water after the condensation, has practiced thrift tap water, soft water, has reduced water resource waste, reaches effect in energy saving and environmental protection.
(2) the saturated air phenol water that will atomize is brought gas furnace into, and total system recycles, and reaches no phenolic wastewater discharging, when effectively protecting environment, has strengthened the coal oxidation process, improves gas yield.
(3) because the gas furnace hot balance adjustment can be regulated with steam, air, three kinds of flow processs of atomizing phenol water simultaneously, the degree of freedom and the safety of regulating have been increased.
(4) treated clean phenol water is squeezed into inter cooler, is difficult for incrustation, has improved service life of equipment.
(5) whole plant manufacturing cost and maintenance cost are lower, and be simple to operate, reliable, is easy to use in bituminous coal, hard coal, gas station phenol water disposal.
Description of drawings
Fig. 1: existing gas station phenol water rough handling craft block-diagram;
Fig. 2: gas station of the present invention phenol water treatment technique skeleton diagram;
Fig. 3: gas station of the present invention phenol water treatment technique schema.
The present invention is described in detail through preferred embodiment below in conjunction with accompanying drawing.
Embodiment
Like Fig. 2, shown in 3, the concrete steps of a kind of gas station phenol water treatment technique are following:
At first; The phenol water that producer gas generator 1, tornado dust collector 2, air-cooled tower 3, inter cooler 4 are produced gets into phenol water precipitation pond 5; After dust in the phenol water, tar carried out preliminary sedimentation, get into heavy tar settling tank 6, heavy tar is carried out post precipitation; After going into the 7 pairs of light oil filtrations in phenol water filtering pond, flow into water-and-oil separator 8; Then,, squeezed in the phenol water heater 11 by water pump 10 through water pump 10 pressurizations through phenol water storage pool 9, the residual steam that feeds drum 14 generations simultaneously is to phenol water indirect heating; The phenol water temp is heated to 80～90 ℃, and the stainless steel nozzle through the top fully atomizes, and the air that air-blaster 13 drums advance is reached capacity with atomizing phenol water thorough mixing in phenol water evaporator tower, brings gas furnace 1 furnace bottom into by air and burns as vaporized chemical; Simultaneously; A part clean phenol water is after treatment squeezed into inter cooler 4 through water pump 10; As the coal gas spraying cooling water, a part clean phenol water is after treatment squeezed into producer gas generator 1, tornado dust collector 2, air-cooled tower 3 through water pump 10, uses as water seal.
Below the present invention is further described.
" the air phenol water evaporation saturation method " that the present invention adopts, handle the technology of gas station phenol-containing wastewater and divide two stages:
1, pretreatment stage, this stage is except that most suspended substances in the decontaminated water and tar etc.
2, the dephenolize oxide treatment stage is with most of aldehydes matter in the pretreated sewage and partial organic substances matter combustion oxidation.
Pretreatment stage comprises:
1. natural subsidence partition method.
2. chemical coagulation-sedimentation method, (15～30ml/l) as flocculation in phenol water, to add aluminium chlorohydroxide
Agent, the sedimentation speed of increase phenol water.
3. gravitational separation process further separates phenol water, squeezes into phenol water in the water-and-oil separator through pump, does not contain phenol water and flows in the phenol pond, and tar flows back in the tar pool.
The dephenolize oxide treatment stage comprises:
1. squeeze into pretreated phenol water in the phenol water heater by pump, the residual steam that feeds the drum generation simultaneously is to phenol water indirect heating.Cold circulatory pool between the soft water that cools down flows back to is provided with the thermostatically heating apparatus in phenol water heater outside, guarantees that the phenol water temp at 80～90 ℃, reaches atomizing effect preferably.
2. inject phenol water evaporator tower to the phenol water that heats; Stainless steel nozzle through the top fully atomizes; And the air that the air-blaster drum is advanced reaches capacity with atomizing phenol water thorough mixing in phenol water evaporator tower, brings the gas furnace furnace bottom into by air and burns as vaporized chemical.
3. the phenol water that gets off of phenol water evaporator tower partial condensation flows back to the phenol pond through pipeline.
4. the clean phenol water in back be will handle and required refrigerative equipment, water seal use squeezed into through pump.
Claims (1)
1. gas station phenol water treatment technique, it is characterized in that: said process step is following:
At first; After preliminary sedimentation is carried out in the phenol water entering phenol water precipitation pond (5) that producer gas generator (1), tornado dust collector (2), air-cooled tower (3), inter cooler (4) produce; Getting into heavy tar settling tank (6) again precipitates; After getting into phenol water filtering pond (7) filtration again, flow into water-and-oil separator (8);
Then; Phenol water gets into phenol water storage pool (9); (10 pressurizations are squeezed in the phenol water heater (11) through water pump; And feed residual steam that drum (14) produces to the heating of phenol water to phenol water heater (11), and after being heated to 80～90 ℃, the phenol water temp gets into phenol water evaporator tower (12), fully atomize through cat head stainless steel nozzle; And the air that air-blaster (13) drum advances reached capacity with the phenol water thorough mixing that atomizes phenol water evaporator tower (12) in, bring producer gas generator (1) into by air and burn as vaporized chemical;
Simultaneously; A part clean phenol water is after treatment squeezed into inter cooler (4) through water pump (10); As the coal gas spraying cooling water; A part clean phenol water is after treatment squeezed into producer gas generator (1), tornado dust collector (2), air-cooled tower (3) through water pump (10), uses as water seal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110429314XA CN102515407A (en) | 2011-12-20 | 2011-12-20 | Gas station phenol water processing process |
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|---|---|---|---|
| CN201110429314XA CN102515407A (en) | 2011-12-20 | 2011-12-20 | Gas station phenol water processing process |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159343A (en) * | 2012-11-09 | 2013-06-19 | 唐山科为工控技术有限公司 | Coal gas condensate water processing method |
| CN103589461A (en) * | 2013-11-25 | 2014-02-19 | 淄博义丰机械工程有限公司 | Gas purification treatment device and process with phenolic water treatment for two-sectional type gas producer |
| CN104710039A (en) * | 2015-03-19 | 2015-06-17 | 牛长远 | Wastewater treatment method for gas generation furnace and treatment system used in wastewater treatment method |
| CN106430765A (en) * | 2016-11-30 | 2017-02-22 | 唐山绿源环保科技有限公司 | Coal gas station phenolic water treatment apparatus and method |
| CN112794475A (en) * | 2020-12-25 | 2021-05-14 | 上海泽玛克敏达机械设备有限公司 | Oil-containing phenol water separation process method |
| CN113830947A (en) * | 2020-06-08 | 2021-12-24 | 唐山惠川环保科技有限公司 | Gas station phenol-containing wastewater treatment process system |
| CN114561224A (en) * | 2022-03-11 | 2022-05-31 | 南阳三鑫诚达化工科技有限公司 | Novel process for pyrolysis, classification, quality-grading and gradient utilization of low-rank coal |
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2011
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103159343A (en) * | 2012-11-09 | 2013-06-19 | 唐山科为工控技术有限公司 | Coal gas condensate water processing method |
| CN103589461A (en) * | 2013-11-25 | 2014-02-19 | 淄博义丰机械工程有限公司 | Gas purification treatment device and process with phenolic water treatment for two-sectional type gas producer |
| CN104710039A (en) * | 2015-03-19 | 2015-06-17 | 牛长远 | Wastewater treatment method for gas generation furnace and treatment system used in wastewater treatment method |
| CN106430765A (en) * | 2016-11-30 | 2017-02-22 | 唐山绿源环保科技有限公司 | Coal gas station phenolic water treatment apparatus and method |
| CN113830947A (en) * | 2020-06-08 | 2021-12-24 | 唐山惠川环保科技有限公司 | Gas station phenol-containing wastewater treatment process system |
| CN113830947B (en) * | 2020-06-08 | 2023-06-09 | 唐山惠川环保科技有限公司 | Phenol-containing wastewater treatment process system for gas station |
| CN112794475A (en) * | 2020-12-25 | 2021-05-14 | 上海泽玛克敏达机械设备有限公司 | Oil-containing phenol water separation process method |
| CN114561224A (en) * | 2022-03-11 | 2022-05-31 | 南阳三鑫诚达化工科技有限公司 | Novel process for pyrolysis, classification, quality-grading and gradient utilization of low-rank coal |
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Application publication date: 20120627 |