CN110482777A - The method managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process - Google Patents
The method managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process Download PDFInfo
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- CN110482777A CN110482777A CN201810457930.8A CN201810457930A CN110482777A CN 110482777 A CN110482777 A CN 110482777A CN 201810457930 A CN201810457930 A CN 201810457930A CN 110482777 A CN110482777 A CN 110482777A
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- Prior art keywords
- waste water
- exhaust gas
- refinery
- shutting down
- checking maintenance
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/10—Treatment of water, waste water, or sewage by heating by distillation or evaporation by direct contact with a particulate solid or with a fluid, as a heat transfer medium
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/24—Treatment of water, waste water, or sewage by flotation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/101—Sulfur compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
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- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to petrochemical industry Environmental protection management technical fields; disclose a kind of method managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process, comprising the following steps: (1) determine waste water, source exhaust gas during refinery's shutting down and checking maintenance；(2) ingredient and composition of waste water during refinery's shutting down and checking maintenance, exhaust gas are analyzed；(3) waste water and gas is handled.A kind of method managed for refinery's shutting down and checking maintenance waste water, exhaust gas whole process that the technical program provides, source analysis waste water producing cause generates link, implementing classification control, classification improvement reduces enterprises environmental risk to improve environmental protection of enterprise management level.
Description
Technical field
The invention belongs to heat supply process fields, and in particular to a kind of for the waste water of refinery's shutting down and checking maintenance, exhaust gas
The method of whole process control.
Background technique
It needs to carry out shut-down general overhaul after domestic oil refining enterprises process units operation a cycle (general 3-5), to tower, hold
The equipment such as device are cleaned, and are replaced to corrosion equipment, are demarcated to measuring instrument, and the safety to ensure next period is flat
Steady reproduction.Stoppage phase, usually tens sets of process units stop simultaneously, cool down, be depressured, the material returned, emptying, equipment cleaning when,
To generate in short-term a large amount of oil-containings, containing solvent, containing alkali, containing the waste water of high-enriched organics, pollutant concentration fluctuation range is big,
It is difficult to ensure sewage-treatment plant sewage total amount and pollutant concentration burden requirement, impact easily is generated to wastewater treatment field, influence final
Qualified discharge.In addition, in device boiling, pipeline purge, Yi Fasheng boiling, sweeping process be unreasonable, field management not
The case where sternly peculiar smell being caused to leak, it is easy to happen Environment Pollution Event.Therefore it provides the use that a kind of classification control, classification are administered
In the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process manage method be very well it is necessary to.
Sulfur-containing waste water: S2-Content is greater than the waste water of 100mg/L；
Brine waste: salt content is greater than the waste water of 500mg/L；
Oily waste water: oil content is greater than the waste water of 20 mg/L.
Summary of the invention
It is a kind of useless for refinery's shutting down and checking maintenance process it is an object of the invention in view of the above technical problems, provide
The method that water, exhaust gas whole process are managed reduces enterprises environmental risk to improve environmental protection of enterprise management level.Specific technical solution
It is as follows:
A method of it is managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process, which is characterized in that including following
Step:
(1) waste water during refinery's shutting down and checking maintenance, source exhaust gas (producing cause and generate link) are determined；
(2) ingredient and composition of waste water during refinery's shutting down and checking maintenance, exhaust gas are analyzed；
(3) waste water and gas is handled, disposal options are formulated according to waste water, Exhaust gas species and property feature.
After the source of waste water is refinery's stoppage phase device material returned in step (1), the cleaning of equipment and connection equipment
Pipeline purging generates the waste water for carrying material or processes the equipment and passivator chemical cleaning of sulfide containing material.Refinery's shut-down rank
After the section apparatus material returned, the cleaning of equipment and the pipeline purging of connection equipment can generate the waste water for carrying material；Process sulfur-bearing object
The equipment (such as catalytic cracking unit, hydrogenation plant) of material, it is also necessary to carry out chemical cleaning using passivator, this process can generate
High-concentration waste water.
The source of exhaust gas is remaining non-congealable oil gas mixture after equipment boiling in step (1).Equipment (pipeline) boiling
After (purging), remain some non-congealable oil gas mixtures, main component include hydro carbons, gas, hydrogen sulfide, thioether, mercaptan, ammonia,
Nitrogen, carbon dioxide, hydrogen etc..
Waste water includes oily waste water, sulfur-containing waste water, brine waste and passivation waste liquid in step (2).
Exhaust gas includes hydro carbons, gas, hydrogen sulfide, thioether, mercaptan, ammonia, nitrogen, carbon dioxide, hydrogen in step (2).
Classify according to wastewater property, the waste water that shutting down and checking maintenance process generate includes oily waste water, sulfur-containing waste water, contains
Salt waste water and passivation waste liquid.Waste water usually by S2- content greater than 100mg/L is known as sulfur-containing waste water, and salt content is greater than
The waste water of 500mg/L is known as brine waste, and the waste water by oil content greater than 20 mg/L is known as oily waste water.Waste water in step (3)
Processing method are as follows:
Oily waste water it is preprocessed it is up to standard after send oily wastewater system, handled using biological degradation method, can also by increase it is advanced
Oxidative treatment technique improves treatment effect；
Sulfur-containing waste water send acid water gas device to handle, and carries out stripping processing using steam, with steam by S in waste water2-With H2S's
Form steams, and separates and collects with waste water；
Brine waste send saline sewage system to handle after pretreatment, is handled using biological degradation method；
It is passivated devil liquor recovery processing.
Oily waste water it is preprocessed it is up to standard after send oily wastewater system handle, using biological degradation method to waste water at
Reason can also improve treatment effect by increasing the treatment process such as advanced oxidation processes when necessary；Sulfur-containing waste water send acid water gas to fill
Processing is set, mainly carries out stripping processing using steam, is steamed S2- in waste water in the form of H2S with steam, is carried out with waste water
It separates and collects；Brine waste send saline sewage system to handle after pretreatment, is mainly handled using biological degradation method；
Passivation waste liquid send suppliers' reclaiming processing or enterprise voluntarily to handle.
The processing method of exhaust gas in step (3) are as follows: send torch Closed Drain, it is ensured that full combustion.
The exhaust gas that shut-down purge generates, Xiang Huoju Closed Drain.Atmospheric and vacuum distillation unit, sulphur unit, catalytic cracking dress
Set, in the devices purge gass such as hydrogenation plant containing foul gas such as hydrogen sulfide, one is to ensure that purge gas is closed in disposal process
Conveying, avoids leaking to atmosphere；Ensure full combustion when second is that sending torch, avoids smell pollution.
A kind of method managed for refinery's shutting down and checking maintenance waste water, exhaust gas whole process that the technical program provides,
Source analysis waste water producing cause generates link, implements classification control, is classified and administers, to improve environmental protection of enterprise management level, drop
Low enterprises environmental risk.
Specific embodiment
The present invention provides a kind of for refinery's shutting down and checking maintenance spent process water, the method for exhaust gas whole process control,
To make the purpose of the present invention, technical solution and effect clearer, clear and definite, the present invention is described in more detail below.It should
Understand, the specific embodiments described herein are merely illustrative of the present invention, is not intended to limit the present invention.
The present invention provides a kind of for refinery's shutting down and checking maintenance spent process water, the method for exhaust gas whole process control,
Itself the following steps are included:
Step 1, waste water, source exhaust gas (producing cause generates link) during refinery's shutting down and checking maintenance: waste water are studied:
Refinery carries out the material returned to each equipment first in stoppage phase, and steam progress boiling is passed through after the completion of the material returned and (is related to the equipment such as heavy oil
Also cleaned using fire water or diesel oil before boiling), the pipeline of connection equipment is purged using steam, this process can generate
A large amount of waste water for carrying material.Process the equipment (such as catalytic cracking unit, hydrogenation plant) of sulfide containing material, it is also necessary to utilize blunt
Agent carries out chemical cleaning, this process can generate high-concentration waste water.Exhaust gas: after equipment (pipeline) boiling (purging), residual
Non-congealable oil gas mixture, main component include hydro carbons, gas, hydrogen sulfide, thioether, mercaptan, ammonia, nitrogen, carbon dioxide, hydrogen
Deng.
Step 2, the type and physicochemical property feature of waste water during refinery's shutting down and checking maintenance are analyzed:
(1) oily waste water: equipment boiling (including cleaning), pipeline purging can generate a large amount of oily waste waters, this strand of waste water belongings
Material is more, has the characteristics that " double height ": COD high (1000 ~ 20000mg/l), petroleum-type are high (500 ~ 8000mg/l)；
(2) sulfur-containing waste water: coking plant cuts burnt section, catalytic unit fractionation apparatus, hydrogenation plant (stopping work initial stage) and generates sulfur-bearing and give up
Water；
(3) brine waste: atmospheric and vacuum distillation unit electrical desalter, Circulating Water Field backwash cleaning process generate brine waste；
(4) it is passivated waste liquid: atmospheric and vacuum distillation unit stabilizer, vacuum tower, coking plant stabilizer, solvent reclamation device regenerator, acid
Property the equipment such as aqueous vapor body device stripper, hydrogenation plant fractionating column have passivation cleaning process when stopping work, generate passivation waste liquid.
Step 3, disposal options are formulated according to type and property feature:
(1) oily waste water: oily waste water should send oil-contained waste water treatment system to be disposed, but the oily waste water generated when shut-down is dirty
It is high to contaminate object concentration, directly wastewater treatment field cannot be sent to handle, waste water should be pre-processed (as carried out water-oil separating), reach wastewater treatment field
It when index of intaking, can be handled, processing system is mainly handled waste water using biological degradation method, may be used also when necessary
Treatment effect is improved by increasing the treatment process such as advanced oxidation processes, disposal plant mainly includes oil separator, floation tank, biochemistry
Pond；
(2) sulfur-containing waste water: sulfur-containing waste water send acid water gas device to handle, and processing system mainly utilizes steam stripping, will give up
S in water2-With H2The form of S steams, and is separated and is collected with waste water；Sulfur-containing waste water sulfide, the ammonia nitrogen concentration in later period become smaller,
The disposition of oily waste water system can be transferred to；
(3) brine waste: brine waste send brine waste processing system to be disposed, and should detect to water quality before disposition, full
It can handle when foot water inlet index, otherwise should be pre-processed, processing system is mainly handled using biological degradation method, is located
Managing device mainly includes oil separator, floation tank, biochemistry pool；
(4) be passivated waste liquid: generally there are two types of processing modes for this strand of waste water: first is that suppliers' reclaiming is handled；Second is that enterprise voluntarily locates
Reason.Since useless passivating solution contains a large amount of chemical reagent, activated sludge is easily caused to be poisoned, therefore handles useless passivating solution using biochemical method
When, Ying Shaoliang is slowly added to biochemistry pool, avoids activated sludge poisoning.
(5) exhaust gas: the exhaust gas that shut-down purge generates, Xiang Huoju Closed Drain.Atmospheric and vacuum distillation unit, is urged at sulphur unit
Change and contain the foul gas such as hydrogen sulfide in the devices purge gass such as cracking unit, hydrogenation plant, one is to ensure that purging in disposal process
Confined gas conveying, avoids leaking to atmosphere；Ensure full combustion when second is that sending torch, avoids smell pollution.
Embodiment only illustrates technical solution of the present invention, rather than carries out any restrictions to it；Although with reference to the foregoing embodiments
Invention is explained in detail, for those of ordinary skill in the art, still can be to previous embodiment institute
The technical solution of record is modified or equivalent replacement of some of the technical features；And these modifications or substitutions, and
The essence of corresponding technical solution is not set to be detached from the spirit and scope of claimed technical solution of the invention.
Claims (8)
1. for the waste water of refinery's shutting down and checking maintenance, the method for exhaust gas whole process control, which is characterized in that including following step
It is rapid:
(1) waste water, source exhaust gas during refinery's shutting down and checking maintenance are determined；
(2) judge the ingredient and composition of waste water during refinery's shutting down and checking maintenance, exhaust gas；
(3) waste water and gas is handled.
2. the method according to claim 1 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
It is characterized in that: after the source of waste water is refinery's stoppage phase device material returned in step (1), the cleaning of equipment and connection equipment
Pipeline purging generates the waste water for carrying material or processes the equipment and passivator chemical cleaning of sulfide containing material.
3. the method according to claim 2 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
Be characterized in that: the equipment for processing sulfide containing material is catalytic cracking unit or hydrogenation plant.
4. the method according to claim 2 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
Be characterized in that: the source of exhaust gas is remaining non-congealable oil gas mixture after equipment boiling in step (1).
5. the method according to claim 1 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
Be characterized in that: waste water includes oily waste water, sulfur-containing waste water, brine waste and passivation waste liquid in step (2).
6. the method according to claim 1 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
Be characterized in that: exhaust gas includes hydro carbons, gas, hydrogen sulfide, thioether, mercaptan, ammonia, nitrogen, carbon dioxide, hydrogen in step (2).
7. the method according to claim 1 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
It is characterized in that: the processing method of waste water in step (3) are as follows:
Oily waste water it is preprocessed it is up to standard after send oily wastewater system, handled using biological degradation method, can also by increase it is advanced
Oxidative treatment technique improves treatment effect；
Sulfur-containing waste water send acid water gas device to handle, and carries out stripping processing using steam, with steam by S in waste water2-With H2S's
Form steams, and separates and collects with waste water；
Brine waste send saline sewage system to handle after pretreatment, is handled using biological degradation method；
It is passivated devil liquor recovery processing.
8. the method according to claim 1 managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process,
It is characterized in that: the processing method of exhaust gas in step (3) are as follows: send torch Closed Drain, it is ensured that full combustion.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810457930.8A CN110482777A (en) | 2018-05-14 | 2018-05-14 | The method managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process |
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| CN201810457930.8A CN110482777A (en) | 2018-05-14 | 2018-05-14 | The method managed for the waste water of refinery's shutting down and checking maintenance, exhaust gas whole process |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551832A (en) * | 2020-12-30 | 2021-03-26 | 福建联合石油化工有限公司 | Treatment method of high-concentration overhaul sewage |
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| WO2009075727A1 (en) * | 2007-12-13 | 2009-06-18 | Exxonmobil Research And Engineering Company | Process for the desulfurization of heavy oils and bitumens |
| CN102452750A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Method for oil refinery sewage classification control and grading treatment |
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2018
- 2018-05-14 CN CN201810457930.8A patent/CN110482777A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2009075727A1 (en) * | 2007-12-13 | 2009-06-18 | Exxonmobil Research And Engineering Company | Process for the desulfurization of heavy oils and bitumens |
| CN102452750A (en) * | 2010-10-15 | 2012-05-16 | 中国石油化工股份有限公司 | Method for oil refinery sewage classification control and grading treatment |
Non-Patent Citations (1)
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112551832A (en) * | 2020-12-30 | 2021-03-26 | 福建联合石油化工有限公司 | Treatment method of high-concentration overhaul sewage |
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Application publication date: 20191122 |