CN107603645B - A kind of method that coupling processing oil field tank bottom oil sludge preparation gasification is burnt - Google Patents
A kind of method that coupling processing oil field tank bottom oil sludge preparation gasification is burnt Download PDFInfo
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Abstract
The present invention provides a kind of coupling processing oil field tank bottom oil sludges to prepare the burnt method of gasification, comprising the following steps: and one, blend low-order coal at high proportion into coking coal, blending coal blending is obtained, is then successively crushed, sieved and is dried；Two, it is sent into pyrolysis oven and carries out low temperature pyrogenation, obtain oil gas and hot semicoke, petroleum vapor recovery obtains coal tar, and fixed gas is dry for feed coal as gaseous fuel；Three, thermal dehydration is carried out to oil field tank bottom oil sludge, the hot semicoke in part is then added and carries out modifier treatment, obtains quenched greasy filth；Four, by quenched greasy filth and delayed heat semicoke mixed pyrolysis；Five, gasification coke is prepared using pyrogen.The present invention is burnt using the coal blending of blending low-order coal at high proportion and oil field tank bottom oil sludge preparation gasification, extract high added value oil product, it is not only that extensive utilize of low-order coal opened up a new way, coking industry problem of excess production capacity is effectively dissolved, it reduces coking and produces this, while also achieving the recycling treatment of oil field tank bottom oil sludge.
Description
Technical field
The invention belongs to coal chemical industry and environmental technology fields, and in particular to a kind of coupling processing oil field tank bottom oil sludge prepares gas
Change burnt method.
Background technique
55% or more is accounted for by the low-order coal of representative of lignite/ub-bituminous coal in coal resources in China, reserves are up to 561,200,000,000 tons.But
Since low-order coal water content is high, directly burning or gasification efficiency are low and the prior art is unable to fully is caused using its resource value
The huge wastes of coal resources.Gasification is coal high-efficiency, the leading technology of clean utilization, is to develop coal-based chemicals, liquid
The base of the processes such as fuel, fuel cell, IGCC power generation, industrial fuel gas and polygenerations systeme, synthetic natural gas (SNG) and hydrogen manufacturing
Plinth.Gasification is burnt, that is, is exclusively used in the coke of production coal gas, is mainly used in the fixed bed coal gas producer of dry ash extraction, as gas
Change raw material, produces with CO and H2For the coal gas of combustible component, the coke that gasifies requires lumpiness suitably and uniform, better heat stability.Smelting
Though it is burnt that golden coke may be used as gasification, due to being limited by coking coal resource and price etc., metallurgical coke gas is not had to generally.High ratio
The burnt new technology of example low rank coal high temperature pyrolysis preparation gasification, i.e., blend low-order coal in making burnt raw material at high proportion, pass through Optimized Coal Blending
Technique and technology, the synergistic effect of high temperature pyrolysis and Coking Process each component, prepare the gasification for meeting fixed bed gasification requirement
It is burnt.
In addition, exploiting, transporting in chemical industry, during processing petroleum, a large amount of greasy filth can be generated.Greasy filth is a kind of richness
Solid waste containing mineral oil, main component are crude oil, Ni Heshui.Data shows that China generates during only exploiting petroleum
Greasy filth annual output more than million tons.These sludge composition is sufficiently complex, containing polluters such as a large amount of metals, is difficult to
Natural degradation can contaminated land and water resource if direct emission.By National Hazard waste register, greasy filth has been cited as danger
Waste is just causing the great attention of relevant enterprise and environmental protection administration, government to the chronicity and potentiality of environmental hazard.To oil
The processing technique of mud becomes the hot issue that the current energy and environmental science are studied, and carries out greasy filth management and Prevention Technique is ground
Study carefully be the work of current national environmental protection a vital task.Therefore, how the innoxious and recycling of these oily sludges progress
It utilizes, and the important environmental issue that pendulum is urgently to be resolved in face of current oil refining industry.
In greasy filth, it is especially deposited on the tank bottom mud of the high oil-containing of various holding vessels (oil tank, gun barrel) bottom
In, in addition to containing silt particle and water, the petroleum hydrocarbon contaminant also contained is mainly crude oil and aged crude oil, and light oil therein and
Diesel component most separates value, and its value of the heavy component that it contains such as wax, asphalitine component is lower, its benefit after separation
With and conversion it is more difficult, do not have and extract the value that sub-prime utilizes.Domestication has very much, such as the processing method of greasy filth at present
Solvent extraction, chemical cleaning, quenched-mechanically decoupled, pyrolysis, ultrasound etc., if being located greasy filth pyrolysis processing using simple
Manage costly, marketing difficulty is larger.
Summary of the invention
Technical problem to be solved by the present invention lies in view of the above shortcomings of the prior art, provide a kind of coupling processing oil
The burnt method of field tank bottom oil sludge preparation gasification.This method is burnt by the coking coal preparation gasification for blending low-order coal at high proportion, is realizing
It utilizes on a large scale and has dissolved superfluous coking production capacity while low-order coal；By by coking process and oil field tank bottom oil sludge recycling
Processing technique is coupled, and the heavy component in greasy filth participates in Coking Process and plays synergistic effect, high additional in recycling greasy filth
Coke quality is improved while the light-end products of value.
In order to solve the above technical problems, the technical solution adopted by the present invention is that: a kind of coupling processing oil field tank bottom oil sludge system
The burnt method of standby gasification, which is characterized in that method includes the following steps:
Step 1: blending low-order coal at high proportion into coking coal, the blending that low-order coal mass content is 50%~70% is obtained
Then coal blending is successively crushed, is sieved and is dried to the blending coal blending；The low-order coal is lignite, jet coal, no
Viscous coal or weakly caking coal；
It is 500 DEG C~650 in temperature Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven
Constant temperature 1h~3h carries out low temperature pyrogenation processing under conditions of DEG C, obtains oil gas I and hot semicoke I；Oil gas I is recycled, is obtained
Coal tar and fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；It is heat by hot semicoke I points
Semicoke IA and hot semicoke IB two parts；
Step 3: carrying out thermal dehydration to oil field tank bottom oil sludge, dehydration greasy filth is obtained, then blends step into dehydration greasy filth
Hot semicoke IA described in rapid two obtains quenched greasy filth to carry out loose and granulating modifier treatment；
Step 4: hot semicoke IB described in step 2 and quenched greasy filth 1:(3~8 in mass ratio described in step 3) it mixes
It is added in paddle pyrolysis reactor afterwards, is pyrolyzed under conditions of temperature is 250 DEG C~350 DEG C, obtains oil gas II and hot semicoke II；
Step 5: recycling to oil gas II described in step 4, fuel oil and fixed gas II, fixed gas II conduct are obtained
The thermal dehydration of oil field tank bottom oil sludge in drying and step 3 of the gaseous fuel for blending coal blending in step 1；By step 4
Described in hot semicoke II high-temperature-coked 3h~10h under conditions of temperature is 850 DEG C~1100 DEG C, it is burnt to obtain gasification.
The burnt method of above-mentioned a kind of coupling processing oil field tank bottom oil sludge preparation gasification, which is characterized in that passed through in step 1
The partial size of screening process post blend coal blending is not more than 5mm.
A kind of burnt method of above-mentioned coupling processing oil field tank bottom oil sludge preparation gasification, which is characterized in that institute in step 2
The weight for stating hot semicoke IA accounts for the 10%~40% of hot semicoke I total weight.
A kind of burnt method of above-mentioned coupling processing oil field tank bottom oil sludge preparation gasification, which is characterized in that institute in step 3
The moisture content for stating oil field tank bottom oil sludge is 20%~40%, the detailed process of the thermal dehydration are as follows: oil field tank bottom oil sludge exists
Dehydration to moisture content is 10%~15% under conditions of temperature is 100 DEG C~105 DEG C.
The present invention will gasify burnt preparation process and oil field tank bottom oil sludge resource treatment technique is coupled, with prior art phase
Than having the following beneficial effects:
1, the present invention coal blending of blending low-order coal and oil field tank bottom oil sludge will be used to gasify burnt preparation process at high proportion, a side
Face realizes the extensive utilization of low-order coal, has vitalized current domestic superfluous coking production capacity, has reduced the production of coking industry
Cost；On the other hand the recycling treatment for realizing greasy filth has reached well economical and environmentally friendly comprehensive benefit；
2, the present invention blending hot semicoke of coal blending mentions oil for quenched greasy filth fast pyrogenation as solid thermal carriers；Quenched greasy filth
In heavy component as binder for blending coal blending coking；The present invention is burnt same with recycling treatment greasy filth in preparation gasification
When, the high value added products such as pyrolytic tar and petrol and diesel oil are also obtained；
3, for the heavy components such as pitch of the invention using in greasy filth as binder, large scale reduces making for high-quality coking coal
Dosage can effectively reduce coking cost；
4, the on-condensible gas fuel and hot solid particulate matter generated in the present invention, may be implemented the substance in part system
It is lower compared to single greasy filth heat treatment process or coke making process overall energy consumption with energy circulation；
In conclusion the method that coupling processing oil field tank bottom oil sludge of the present invention preparation gasification is burnt, provide a kind of completely new
Blend low-order coal at high proportion matches coal utilization and oil field tank bottom oil sludge recycling treatment approach, has very high economical and environmentally friendly comprehensive
Benefit is closed, prospects for commercial application is wide.
Below with reference to embodiment, invention is further described in detail.
Specific embodiment
Embodiment 1
With the tank bottom oil sludge in northern Shensi oil field, (for 35wt%, water content 30wt% contains its initial clay content the present embodiment
Oil mass is 35wt%) it is process object, it is that low-order coal coupling processing oil field tank bottom oil sludge prepares gas using refreshing mansion head of district flame coal
Change burnt.The burnt method of the present embodiment coupling processing oil field tank bottom oil sludge preparation gasification the following steps are included:
Step 1: blending low-order coal at high proportion into coking coal, the blending coal blending that low-order coal mass content is 55% is obtained, so
It is sieved after being crushed afterwards to the blending coal blending, until the partial size of screening process post blend coal blending is not more than 5mm, is in temperature later
1.5h is kept the temperature under conditions of 105 DEG C to be dried；
Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven, the condition for being 650 DEG C in temperature
Lower constant temperature 2h carries out pyrolysis processing, obtains oil gas I and hot semicoke I；
According to pyrolysis temperature, low temperature pyrogenation (500~650 DEG C), medium temperature pyrolysis (650~800 DEG C), high temperature pyrolysis can be divided into
(900~1000 DEG C) and superhigh temperature are pyrolyzed (> 1200 DEG C) (bibliography: pyrolysis, coking and the coal tar processing of Gao Jinsheng coal
[M] Chemical Industry Press, 2010)；The present embodiment is low temperature pyrogenation；
Oil gas I is recycled according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process, obtains coal tar
With fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；In the present embodiment, coai-tar product
Yield is 8.62%, and hot semicoke I yield is 68.43%；
Hot semicoke I is divided for hot semicoke IA and hot semicoke IB two parts, the weight of hot semicoke IA accounts for hot semicoke I total weight
20%；
Step 3: taking oil field tank bottom oil sludge, the moisture content of dehydration to greasy filth is near under conditions of temperature is 105 DEG C
15wt% makes micro-wet state at greasy filth, is achieved in the thermal dehydration to oil field tank bottom oil sludge, obtains dehydration greasy filth, then
Into dehydration greasy filth, hot semicoke IA described in admixing step two obtains tempering oil to carry out loose and granulating modifier treatment
Mud；
Step 4: hot semicoke IB described in step 2 presses quality as quenched greasy filth described in solid thermal carriers and step 3
Than being added in paddle pyrolysis reactor after 1:8 mixing, fast pyrogenation reaction is carried out under conditions of temperature is 350 DEG C, obtains oil
Gas II and hot semicoke II；
According to heating speed, pyrolysis can be divided into slow pyrolysis (< 1K/s), middling speed pyrolysis (5~100K/s), fast pyrogenation
(500~106) and flashing speed oven (> 10 K/s6K/s) (K is kelvin degree, and s is the second；Bibliography: the pyrolysis of Gao Jinsheng coal,
Coking and coal tar processing [M] Chemical Industry Press, 2010)；The present embodiment pyrolysis is fast pyrogenation；
Step 5: according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process to oil gas II described in step 4
It is recycled, obtains fuel oil and fixed gas II, fixed gas II is as gaseous fuel for blending the drying of coal blending in step 1
And in step 3 oil field tank bottom oil sludge thermal dehydration；
Through detecting, fuel oil mainly includes the components such as gasoline, kerosene, light diesel fuel, heavy diesel fuel；
Hot semicoke II is made of the greasy filth heavy component being stranded in hot coke after hot semicoke 1B and fast pyrogenation, by hot semicoke
II enters high-temperature-coked furnace as preheating tamping coking raw material, and high-temperature-coked 8h under conditions of temperature is 950 DEG C is gasified
It is burnt.
The burnt simultaneously coupling processing oil field tank bottom oil sludge of gasification is prepared using the present embodiment, on the one hand, can be achieved in oily sludge
The 95% of the organic matters such as petroleum hydrocarbon is recycled, and is subject to using intractable whole heavy components as coking binder
It utilizes；On the other hand, low price coal mixing proportion is realized up to 50% or more coal-blending coking method.
Embodiment 2
With the tank bottom oil sludge in northern Shensi oil field, (for 45wt%, water content 25wt% contains its initial clay content the present embodiment
Oil mass is 30wt%) it is process object, the dross coal using Dongsheng, Inner Mongolia coalfield is low-order coal coupling processing oil field tank bottom oil
Clay standby gasification is burnt.The burnt method of the present embodiment coupling processing oil field tank bottom oil sludge preparation gasification the following steps are included:
Step 1: blending low-order coal at high proportion into coking coal, the blending coal blending that low-order coal mass content is 60% is obtained, so
It is sieved after being crushed afterwards to the blending coal blending, until the partial size of screening process post blend coal blending is not more than 5mm, is in temperature later
2h is kept the temperature under conditions of 105 DEG C to be dried；
Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven, the condition for being 550 DEG C in temperature
Lower constant temperature 2h carries out pyrolysis processing, obtains oil gas I and hot semicoke I；
According to pyrolysis temperature, low temperature pyrogenation (500~650 DEG C), medium temperature pyrolysis (650~800 DEG C), high temperature pyrolysis can be divided into
(900~1000 DEG C) and superhigh temperature are pyrolyzed (> 1200 DEG C) (bibliography: pyrolysis, coking and the coal tar processing of Gao Jinsheng coal
[M] Chemical Industry Press, 2010)；The present embodiment is low temperature pyrogenation；
Oil gas I is recycled according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process, obtains coal tar
With fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；In the present embodiment, coai-tar product
Yield is 7.15%, and hot semicoke I yield is 67.23%；
Hot semicoke I is divided for hot semicoke IA and hot semicoke IB two parts, the weight of hot semicoke IA accounts for hot semicoke I total weight
40%；；
Step 3: taking oil field tank bottom oil sludge, the moisture content of dehydration to greasy filth is reduced under conditions of temperature is 105 DEG C
15wt% makes micro-wet state at greasy filth, is achieved in the thermal dehydration to oil field tank bottom oil sludge, obtains dehydration greasy filth, then
Into dehydration greasy filth, hot semicoke IA described in admixing step two obtains tempering oil to carry out loose and granulating modifier treatment
Mud；The additional amount of hot semicoke IA is the 5% of dehydrated oil shale amount；
Step 4: hot semicoke IB described in step 2 presses quality as quenched greasy filth described in solid thermal carriers and step 3
Than being added in paddle pyrolysis reactor after 1:4 mixing, fast pyrogenation reaction is carried out under conditions of temperature is 300 DEG C, obtains oil
Gas II and hot semicoke II；
According to heating speed, pyrolysis can be divided into slow pyrolysis (< 1K/s), middling speed pyrolysis (5~100K/s), fast pyrogenation
(500~106) and flashing speed oven (> 10 K/s6K/s) (K is kelvin degree, and s is the second；Bibliography: the pyrolysis of Gao Jinsheng coal,
Coking and coal tar processing [M] Chemical Industry Press, 2010)；The present embodiment pyrolysis is fast pyrogenation；
Step 5: according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process to oil gas II described in step 4
It is recycled, obtains fuel oil and fixed gas II, fixed gas II is as gaseous fuel for blending the drying of coal blending in step 1
And in step 3 oil field tank bottom oil sludge thermal dehydration；
Through detecting, fuel oil mainly includes the components such as gasoline, kerosene, light diesel fuel, heavy diesel fuel；
Hot semicoke II is made of the greasy filth heavy component being stranded in hot coke after hot semicoke 1B and fast pyrogenation, by hot semicoke
II enters high-temperature-coked furnace as preheating tamping coking raw material, and high-temperature-coked 6h under conditions of temperature is 1000 DEG C obtains gas
Change burnt.
The burnt simultaneously coupling processing oil field tank bottom oil sludge of gasification is prepared using the present embodiment, on the one hand, can be achieved in oily sludge
The 95% of the organic matters such as petroleum hydrocarbon is recycled, and is subject to using intractable whole heavy components as coking binder
It utilizes；On the other hand, low price coal mixing proportion is realized up to 50% or more coal-blending coking method.
Embodiment 3
With the tank bottom oil sludge in northern Shensi oil field, (for 30wt%, water content 35wt% contains its initial clay content the present embodiment
Oil mass is 35wt%) it is process object, it is that low-order coal coupling processing oil field tank bottom oil sludge prepares gas using Datong weakly caking coal
Change burnt.The burnt method of the present embodiment coupling processing oil field tank bottom oil sludge preparation gasification the following steps are included:
Step 1: blending low-order coal at high proportion into coking coal, the blending coal blending that low-order coal mass content is 50% is obtained, so
It is sieved after being crushed afterwards to the blending coal blending, until the partial size of screening process post blend coal blending is not more than 5mm, is in temperature later
2h is kept the temperature under conditions of 100 DEG C to be dried；
Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven, the condition for being 500 DEG C in temperature
Lower constant temperature 1h carries out pyrolysis processing, obtains oil gas I and hot semicoke I；
According to pyrolysis temperature, low temperature pyrogenation (500~650 DEG C), medium temperature pyrolysis (650~800 DEG C), high temperature pyrolysis can be divided into
(900~1000 DEG C) and superhigh temperature are pyrolyzed (> 1200 DEG C) (bibliography: pyrolysis, coking and the coal tar processing of Gao Jinsheng coal
[M] Chemical Industry Press, 2010)；The present embodiment is low temperature pyrogenation；
Oil gas I is recycled according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process, obtains coal tar
With fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；In the present embodiment, coai-tar product
Yield is 8.62%, and hot semicoke I yield is 68.43%；
Hot semicoke I is divided for hot semicoke IA and hot semicoke IB two parts, the weight of hot semicoke IA accounts for hot semicoke I total weight
30%；
Step 3: taking oil field tank bottom oil sludge, the moisture content of dehydration to greasy filth is reduced under conditions of temperature is 105 DEG C
10wt% makes micro-wet state at greasy filth, is achieved in the thermal dehydration to oil field tank bottom oil sludge, obtains dehydration greasy filth, then
Into dehydration greasy filth, hot semicoke IA described in admixing step two obtains tempering oil to carry out loose and granulating modifier treatment
Mud；
Step 4: hot semicoke IB described in step 2 presses quality as quenched greasy filth described in solid thermal carriers and step 3
Than being added in paddle pyrolysis reactor after 1:6 mixing, fast pyrogenation reaction is carried out under conditions of temperature is 250 DEG C, obtains oil
Gas II and hot semicoke II；
According to heating speed, pyrolysis can be divided into slow pyrolysis (< 1K/s), middling speed pyrolysis (5~100K/s), fast pyrogenation
(500~106) and flashing speed oven (> 10 K/s6K/s) (K is kelvin degree, and s is the second；Bibliography: the pyrolysis of Gao Jinsheng coal,
Coking and coal tar processing [M] Chemical Industry Press, 2010)；The present embodiment pyrolysis is fast pyrogenation；
Step 5: according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process to oil gas II described in step 4
It is recycled, obtains fuel oil and fixed gas II, fixed gas II is as gaseous fuel for blending the drying of coal blending in step 1
And in step 3 oil field tank bottom oil sludge thermal dehydration；
Through detecting, fuel oil mainly includes the components such as gasoline, kerosene, light diesel fuel, heavy diesel fuel；
Hot semicoke II is made of the greasy filth heavy component being stranded in hot coke after hot semicoke 1B and fast pyrogenation, by hot semicoke
II enters high-temperature-coked furnace as preheating tamping coking raw material, and high-temperature-coked 3h under conditions of temperature is 1100 DEG C obtains gas
Change burnt.
The burnt simultaneously coupling processing oil field tank bottom oil sludge of gasification is prepared using the present embodiment, on the one hand, can be achieved in oily sludge
The 95% of the organic matters such as petroleum hydrocarbon is recycled, and is subject to using intractable whole heavy components as coking binder
It utilizes；On the other hand, low price coal mixing proportion is realized up to 50% or more coal-blending coking method.
Embodiment 4
With the tank bottom oil sludge in northern Shensi oil field, (for 40wt%, water content 30wt% contains its initial clay content the present embodiment
Oil mass is 30wt%) it is process object, strangling lignite using Inner Mongol cylinder lattice is low-order coal coupling processing oil field tank bottom oil sludge system
Standby gasification is burnt.The burnt method of the present embodiment coupling processing oil field tank bottom oil sludge preparation gasification the following steps are included:
Step 1: blending low-order coal at high proportion into coking coal, the blending coal blending that low-order coal mass content is 70% is obtained, so
It is sieved after being crushed afterwards to the blending coal blending, until the partial size of screening process post blend coal blending is not more than 5mm, is in temperature later
1.5h is kept the temperature under conditions of 100 DEG C to be dried；
Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven, the condition for being 500 DEG C in temperature
Lower constant temperature 3h carries out pyrolysis processing, obtains oil gas I and hot semicoke I；
According to pyrolysis temperature, low temperature pyrogenation (500~650 DEG C), medium temperature pyrolysis (650~800 DEG C), high temperature pyrolysis can be divided into
(900~1000 DEG C) and superhigh temperature are pyrolyzed (> 1200 DEG C) (bibliography: pyrolysis, coking and the coal tar processing of Gao Jinsheng coal
[M] Chemical Industry Press, 2010)；The present embodiment is low temperature pyrogenation；
Oil gas I is recycled according to existing dedusting, condensation, washing and electrically trapped tar oil recovery process, obtains coal tar
With fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；In the present embodiment, coai-tar product
Yield is 8.62%, and hot semicoke I yield is 68.43%；
Hot semicoke I is divided for hot semicoke IA and hot semicoke IB two parts, the weight of hot semicoke IA accounts for hot semicoke I total weight
10%；
Step 3: taking oil field tank bottom oil sludge, the moisture content of dehydration to greasy filth is reduced under conditions of temperature is 105 DEG C
10wt% makes micro-wet state at greasy filth, is achieved in the thermal dehydration to oil field tank bottom oil sludge, obtains dehydration greasy filth, then
Into dehydration greasy filth, hot semicoke IA described in admixing step two obtains tempering oil to carry out loose and granulating modifier treatment
Mud；
Step 4: hot semicoke IB described in step 2 presses quality as quenched greasy filth described in solid thermal carriers and step 3
Than being added in paddle pyrolysis reactor after 1:3 mixing, fast pyrogenation reaction is carried out under conditions of temperature is 280 DEG C, obtains oil
Gas II and hot semicoke II；
According to heating speed, pyrolysis can be divided into slow pyrolysis (< 1K/s), middling speed pyrolysis (5~100K/s), fast pyrogenation
(500~106) and flashing speed oven (> 10 K/s6K/s) (K is kelvin degree, and s is the second；Bibliography: the pyrolysis of Gao Jinsheng coal,
Coking and coal tar processing [M] Chemical Industry Press, 2010)；The present embodiment pyrolysis is fast pyrogenation；
Step 5: recycling to oil gas II described in step 4, fuel oil and fixed gas II, fixed gas II conduct are obtained
The thermal dehydration of oil field tank bottom oil sludge in drying and step 3 of the gaseous fuel for blending coal blending in step 1；
Through detecting, fuel oil mainly includes the components such as gasoline, kerosene, light diesel fuel, heavy diesel fuel；
Hot semicoke II is made of the greasy filth heavy component being stranded in hot coke after hot semicoke 1B and fast pyrogenation, by hot semicoke
II enters high-temperature-coked furnace as preheating tamping coking raw material, and high-temperature-coked 10h under conditions of temperature is 850 DEG C obtains gas
Change burnt.
The burnt simultaneously coupling processing oil field tank bottom oil sludge of gasification is prepared using the present embodiment, on the one hand, can be achieved in oily sludge
The 95% of the organic matters such as petroleum hydrocarbon is recycled, and is subject to using intractable whole heavy components as coking binder
It utilizes；On the other hand, low price coal mixing proportion is realized up to 50% or more coal-blending coking method.
The above is only presently preferred embodiments of the present invention, is not intended to limit the invention in any way.It is all according to invention skill
Art any simple modification, change and equivalence change substantially to the above embodiments, still fall within technical solution of the present invention
Protection scope in.
Claims (4)
1. a kind of method that coupling processing oil field tank bottom oil sludge preparation gasification is burnt, which is characterized in that method includes the following steps:
Step 1: blending low-order coal at high proportion into coking coal, the blending coal blending that low-order coal mass content is 50%~70% is obtained,
Then the blending coal blending is successively crushed, is sieved and is dried；The low-order coal is lignite, jet coal, dross coal
Or weakly caking coal；
It is 500 DEG C~650 DEG C in temperature Step 2: the blending coal blending after being dried in step 1 is sent into pyrolysis oven
Under the conditions of constant temperature 1h~3h carry out low temperature pyrogenation processing, obtain oil gas I and hot semicoke I；Oil gas I is recycled, coal tar is obtained
Oil and fixed gas I, fixed gas I is as gaseous fuel for blending the drying of coal blending in step 1；Hot semicoke I is divided for hot semicoke
IA and hot semicoke IB two parts；
Step 3: carrying out thermal dehydration to oil field tank bottom oil sludge, dehydration greasy filth is obtained, then the admixing step two into dehydration greasy filth
Described in hot semicoke IA with carry out loose and granulating modifier treatment, obtain quenched greasy filth；
Step 4: hot semicoke IB described in step 2 and quenched greasy filth 1:(3~8 in mass ratio described in step 3) mix after plus
Enter in paddle pyrolysis reactor, is pyrolyzed under conditions of temperature is 250 DEG C~350 DEG C, obtains oil gas II and hot semicoke II；
Step 5: recycling to oil gas II described in step 4, fuel oil and fixed gas II are obtained, fixed gas II is as gas
The thermal dehydration of oil field tank bottom oil sludge in drying and step 3 of the fuel for blending coal blending in step 1；By institute in step 4
Hot semicoke II high-temperature-coked 3h~10h under conditions of temperature is 850 DEG C~1100 DEG C is stated, it is burnt to obtain gasification.
2. a kind of burnt method of coupling processing oil field tank bottom oil sludge preparation gasification according to claim 1, which is characterized in that
The partial size of screened processing post blend coal blending is not more than 5mm in step 1.
3. a kind of burnt method of coupling processing oil field tank bottom oil sludge preparation gasification according to claim 1, which is characterized in that
The weight of hot semicoke IA described in step 2 accounts for the 10%~40% of hot semicoke I total weight.
4. a kind of burnt method of coupling processing oil field tank bottom oil sludge preparation gasification according to claim 1, which is characterized in that
The moisture content of oil field tank bottom oil sludge described in step 3 is 20%~40%, the detailed process of the thermal dehydration are as follows: by oil field
It is 10%~15% that tank bottom oil sludge, which is dehydrated to moisture content under conditions of temperature is 100 DEG C~105 DEG C,.
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