CN109592865A - The method for reducing oily sludge thermal decomposition product oil content - Google Patents
The method for reducing oily sludge thermal decomposition product oil content Download PDFInfo
- Publication number
- CN109592865A CN109592865A CN201811303112.9A CN201811303112A CN109592865A CN 109592865 A CN109592865 A CN 109592865A CN 201811303112 A CN201811303112 A CN 201811303112A CN 109592865 A CN109592865 A CN 109592865A
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- CN
- China
- Prior art keywords
- oily sludge
- oil content
- thermal decomposition
- decomposition product
- high temperature
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/10—Treatment of sludge; Devices therefor by pyrolysis
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B53/00—Destructive distillation, specially adapted for particular solid raw materials or solid raw materials in special form
-
- 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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/40—Valorisation of by-products of wastewater, sewage or sludge processing
Abstract
The invention discloses a kind of methods for reducing oily sludge thermal decomposition product oil content, comprising the following steps: is sent into oil content in high temperature furnace less than oily sludge of the 40%, moisture content less than 70%；Fabric thickness of the oily sludge in the high temperature furnace is 0~80mm；Controlling the pyrolysis temperature in the high temperature furnace is 400~900 DEG C, and pyrolysis time is 1h~10h, and the atmosphere of pyrolytic reaction is oxygen-free environment, is reduced to 2% thermal decomposition product below to obtain oil content.The method according to the present invention for reducing oily sludge thermal decomposition product oil content carries out Non-oxygen pyrolytic by the way that oily sludge to be sent into high temperature furnace, environmental-friendly, and can reduce the oil content in oily sludge thermal decomposition product well.
Description
Technical field
The present invention relates to pyrolytic technique fields, more particularly, to a kind of side for reducing oily sludge thermal decomposition product oil content
Method.
Background technique
With the development of economy, the consumption of petroleum resources increasingly increases, and incident is yield also day of oily sludge
Benefit increases.The oily sludge total amount that China generates every year is up to more than 500 ten thousand tons.Oily sludge belongs to highly dangerous pollutant, finds
A kind of effective processing mode is extremely important.
Heilungkiang provincial standard DB23/T 1413-2010 defines Sludge in Oilfields comprehensive utilization contamination control index:
The petroleum content on pad well site and drifting road is less than 2%, and agricultural petroleum content is less than 0.3%.Xinjiang Uygur
The oil content that autonomous region provincial standard DB65/T 3997-2017 defines the drilling well solid waste for comprehensive utilization will be lower than
2%.Xinjiang Uygur autonomous region provincial standard DB65/T 3998-2017 is defined for comprehensively utilizing pollutant oil content
Limit value is 2%.National Standard of the People's Republic of China GB 4284-1984 defines pollutant catabolic gene standard value in agricultural sludge:
The highest permissible level of mineral oil is 0.3%.
China is larger to the research of oily sludge and external gap.Currently, oily sludge has incineration method, bioanalysis, extraction
The processing methods such as method.Wherein, the most commonly used is incineration methods, however, incineration method can generate the nocuousness such as dioxin during processing
Gas.
Summary of the invention
The present invention is directed at least solve one of the technical problems existing in the prior art.For this purpose, one object of the present invention
It is to propose a kind of method for reducing oily sludge thermal decomposition product oil content, the oil-containing in oily sludge thermal decomposition product can be reduced
Rate.
The method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content, comprising the following steps: will contain
Oil cut rate is sent into high temperature furnace less than oily sludge of the 40%, moisture content less than 70%；The oily sludge is in the high temperature furnace
Fabric thickness be 0~80mm；Controlling the pyrolysis temperature in the high temperature furnace is 400~900 DEG C, and pyrolysis time is 1h~10h,
The atmosphere of pyrolytic reaction is oxygen-free environment, is reduced to 2% thermal decomposition product below to obtain oil content.
The method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content, by the way that oily sludge to be sent into
Non-oxygen pyrolytic is carried out in high temperature furnace, it is environmental-friendly, and the oil content in oily sludge thermal decomposition product can be reduced well.
According to some embodiments of the present invention, the fabric thickness is 60mm, and the antipyretic temperature is 700 DEG C, when pyrolysis
Between be 2h.
According to some embodiments of the present invention, the fabric thickness is 10mm, and the antipyretic temperature is 800 DEG C, when pyrolysis
Between be 6h, the oil content of the obtained thermal decomposition product is reduced to 0.3% or less.
According to some embodiments of the present invention, the fabric thickness is 40mm, and the antipyretic temperature is 800 DEG C, when pyrolysis
Between be 4h.
According to some embodiments of the present invention, biomass is added in the high temperature furnace and carries out collaboration processing.
According to some embodiments of the present invention, the mass ratio of the biomass and the oily sludge is 10:0~10:2.
According to some embodiments of the present invention, the mass ratio of the biomass and the oily sludge is 10:2.
According to some embodiments of the present invention, the biomass is stalk, vinasse or corncob.
According to some embodiments of the present invention, the oil content of the thermal decomposition product obtained is reduced to 0.3% or less.
Additional aspect and advantage of the invention will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect of the invention and advantage will become from the description of the embodiment in conjunction with the following figures
Obviously and it is readily appreciated that, in which:
Fig. 1 is the flow diagram of the method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content.
Specific embodiment
The method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content is described below with reference to Fig. 1.
As shown in Figure 1, the method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content, including it is following
Step:
Oil content is sent into high temperature furnace less than oily sludge of the 40%, moisture content less than 70%；
Fabric thickness of the oily sludge in high temperature furnace is 0~80mm (including 80mm)；
Control high temperature furnace in pyrolysis temperature be 400~900 DEG C (including endpoint value), pyrolysis time be 1h~10h (including
Endpoint value), the atmosphere of pyrolytic reaction is oxygen-free environment, is reduced to 2% thermal decomposition product below to obtain oil content.
Wherein, if fabric thickness of the oily sludge in high temperature furnace to be arranged too thin, the heat of oily sludge can be reduced
Solve efficiency；If fabric thickness of the oily sludge in high temperature furnace to be arranged too thick, it is greater than 80mm, then is likely to occur heat
Solve insufficient, the treatment effect of oily sludge is poor.That is, keeping cloth of the oily sludge in high temperature furnace thick by setting
While guaranteeing oily sludge pyrolysis efficiency, the treatment effect of oily sludge can be improved between 0~80mm in degree.
If the pyrolysis temperature in high temperature furnace is lower than 400 DEG C, oily sludge possibly can not be pyrolyzed, if in high temperature furnace
Pyrolysis temperature is greater than 900 DEG C, although oily sludge can be pyrolyzed, will cause energy waste.In other words, by will be in high temperature furnace
Pyrolysis temperature be arranged between 400~900 DEG C (including endpoint values), guarantee oily sludge pyrolysis while, save energy
Source reduces costs.
If pyrolysis time of the oily sludge in high temperature furnace is less than 1h, pyrolysis time is too short, and oily sludge may nothing
Method is sufficiently pyrolyzed, if pyrolysis time of the oily sludge in high temperature furnace is greater than 10h, pyrolysis time is longer, can reduce
The pyrolysis efficiency of oily sludge.In other words, by setting make pyrolysis time of the oily sludge in high temperature furnace between 1-10h it
Between, while guaranteeing that oily sludge is sufficiently pyrolyzed, improve the pyrolysis efficiency of oily sludge.
As a result, by the way that oil content to be sent into high temperature furnace less than oily sludge of the 40%, moisture content less than 70% in anaerobic
It is pyrolyzed under environment, not only can handle greasy filth, moreover, dioxin will not be generated under anoxic condition, it can be with oil recovery
Petroleum resources in mud, so that the oil content in thermal decomposition product drops to 2% or less.
Here, it should be noted that structure and working principle of high temperature furnace etc. are ripe for those skilled in the art
Know, details are not described herein.
The method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content, by the way that oily sludge to be sent into
Non-oxygen pyrolytic is carried out in high temperature furnace, it is environmental-friendly, and the oil content in oily sludge thermal decomposition product can be reduced well.
According to some embodiments of the present invention, fabric thickness of the oily sludge in high temperature furnace is 60mm, and antipyretic temperature is
700 DEG C, pyrolysis time 2h.Thus, it is possible to which the oil content that thermal decomposition product is effectively ensured is reduced to 2% or less.
Other embodiments according to the present invention, fabric thickness of the oily sludge in high temperature furnace are 10mm, antipyretic temperature
It is 800 DEG C, the oil content of pyrolysis time 6h, obtained thermal decomposition product are reduced to 0.3% or less.Oily sludge is in height as a result,
Fabric thickness in warm furnace is relatively thin, and pyrolysis temperature is relatively high, and pyrolysis time is relatively long, and obtained thermal decomposition product contains
Oil cut rate further decreases, that is, is reduced to 0.3% hereinafter, reaching agricultural standards.
Still other embodiments according to the present invention, fabric thickness 40mm, antipyretic temperature are 800 DEG C, pyrolysis time 4h.
The oil content that thermal decomposition product can equally be effectively ensured as a result, is reduced to 2% or less.
According to a further embodiment of the invention, biomass is added in high temperature furnace and carries out collaboration processing.Optionally, biomass
For stalk, vinasse or corncob etc..The synergistic effect for passing through oily sludge and biomass as a result, can further decrease oil-containing
The oil content of pyrolyzing sludge product.
Optionally, the mass ratio of biomass and oily sludge is 10:0~10:2 (including endpoint value).Thus, it is possible into one
Step guarantees to reduce the oil content of oily sludge thermal decomposition product.
Still optionally further, the mass ratio of biomass and oily sludge is 10:2.
According to some embodiments of the present invention, the oil content of the thermal decomposition product obtained is reduced to 0.3% or less.For example, high
Warm, prolonged condition can make the oil content of thermal decomposition product be reduced to 0.3% hereinafter, reaching agricultural standards.
The method according to an embodiment of the present invention for reducing oily sludge thermal decomposition product oil content, not only can handle containing greasy dirt
Mud will not generate dioxin under conditions of anoxybiotic, can also recycle the petroleum resources in greasy filth, so that containing in thermal decomposition product
Oil cut rate drops to 2% even 0.3%.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " illustrative examples ",
The description of " example ", " specific example " or " some examples " etc. means specific features described in conjunction with this embodiment or example, knot
Structure, material or feature are included at least one embodiment or example of the invention.In the present specification, to above-mentioned term
Schematic representation may not refer to the same embodiment or example.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
A variety of change, modification, replacement and modification can be carried out to these embodiments in the case where being detached from the principle of the present invention and objective, this
The range of invention is defined by the claims and their equivalents.
Claims (9)
1. a kind of method for reducing oily sludge thermal decomposition product oil content, which comprises the following steps:
Oil content is sent into high temperature furnace less than oily sludge of the 40%, moisture content less than 70%；
Fabric thickness of the oily sludge in the high temperature furnace is 0~80mm；
Controlling the pyrolysis temperature in the high temperature furnace is 400~900 DEG C, and pyrolysis time is 1h~10h, and the atmosphere of pyrolytic reaction is
Oxygen-free environment is reduced to 2% thermal decomposition product below to obtain oil content.
2. the antipyretic temperature is 700 the method according to claim 1, wherein the fabric thickness is 60mm
DEG C, pyrolysis time 2h.
3. the antipyretic temperature is 800 the method according to claim 1, wherein the fabric thickness is 10mm
DEG C, the oil content of pyrolysis time 6h, the obtained thermal decomposition product are reduced to 0.3% or less.
4. the antipyretic temperature is 800 the method according to claim 1, wherein the fabric thickness is 40mm
DEG C, pyrolysis time 4h.
5. according to the method described in claim 4, it is characterized in that, biomass is added in the high temperature furnace carries out collaboration processing.
6. according to the method described in claim 5, it is characterized in that, the biomass and the mass ratio of the oily sludge are
10:0~10:2.
7. according to the method described in claim 6, it is characterized in that, the biomass and the mass ratio of the oily sludge are
10:2。
8. according to the method described in claim 5, it is characterized in that, the biomass is stalk, vinasse or corncob.
9. the method according to any one of claim 4-8, which is characterized in that the oil content of the obtained thermal decomposition product
It is reduced to 0.3% or less.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811303112.9A CN109592865A (en) | 2018-11-02 | 2018-11-02 | The method for reducing oily sludge thermal decomposition product oil content |
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| CN201811303112.9A CN109592865A (en) | 2018-11-02 | 2018-11-02 | The method for reducing oily sludge thermal decomposition product oil content |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3513541C2 (en) * | 1985-04-16 | 1989-06-22 | Elino Industrie-Ofenbau Carl Hanf Gmbh + Co, 5160 Dueren, De | |
| CN103693839A (en) * | 2014-01-07 | 2014-04-02 | 北京神雾环境能源科技集团股份有限公司 | Sludge treatment method and system |
| CN107117787A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of process of oily sludge addition microalgae biomass collaboration pyrolysis |
-
2018
- 2018-11-02 CN CN201811303112.9A patent/CN109592865A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3513541C2 (en) * | 1985-04-16 | 1989-06-22 | Elino Industrie-Ofenbau Carl Hanf Gmbh + Co, 5160 Dueren, De | |
| CN103693839A (en) * | 2014-01-07 | 2014-04-02 | 北京神雾环境能源科技集团股份有限公司 | Sludge treatment method and system |
| CN107117787A (en) * | 2017-07-07 | 2017-09-01 | 中国石油大学(华东) | A kind of process of oily sludge addition microalgae biomass collaboration pyrolysis |
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Application publication date: 20190409 |
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