CN105253884B - Do not melt method for the oxidation for industrializing bitumen ball activated carbon - Google Patents
Do not melt method for the oxidation for industrializing bitumen ball activated carbon Download PDFInfo
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- CN105253884B CN105253884B CN201510768696.7A CN201510768696A CN105253884B CN 105253884 B CN105253884 B CN 105253884B CN 201510768696 A CN201510768696 A CN 201510768696A CN 105253884 B CN105253884 B CN 105253884B
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Abstract
The present invention relates to the method for oxidation of activated carbon, method is not melted in specially a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：（1）, place bitumen ball：Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of 3cm of charging frame interval 1, aoxidized do not melt when, material keeps fixing in charging frame, gas flows between charging frame, contacts and reacts with bitumen ball activated carbon, while the frame that feeds rotates in stove；（2）, heating and oxidation.The inventive method causes bitumen ball activated carbon material can be avoided to catch fire in oxidation not melting process, and oxidation is uniform, it is ensured that do not ftracture, melt in follow-up charcoal activation high-temperature process, and the checking Jing Guo industrialized production.
Description
Technical field
The present invention relates to the method for oxidation of activated carbon, specially a kind of oxidation for industrialization bitumen ball activated carbon is not melted
Change method.
Background technology
The full name of bitumen ball activated carbon is asphalt-base spherical activated carbon, is one kind of spherical activated charcoal.Because its have it is spherical
Spend, load uniform, high mechanical strength, good fluidity, wear-resistant, corrosion-resistant and resistance is small etc. a series of when fixed bed is used
Advantage, is widely used in various fields, is a kind of novel charcoal material of function admirable.But aoxidized in its preparation process and do not melt work
Sequence is essential.
At present, numerous patents have been related to the technology that spherical activated charcoal is prepared by raw material of pitch, such as Chinese invention patent
201210317727 " the low energy consumption preparation methods of asphalt-base spherical activated carbon ", are carried out using the nitrogen containing oxygen to bitumen ball
Oxidation is not melted, Chinese invention patent 200410100531 " method for preparing spherical activated charcoal " is referred only to using flow method to drip
Blue or green ball, which is aoxidized, not to be melted processing, Chinese invention patent 201310227294 " bitumen ball oxidation does not melt method " and mentions and using
Two kinds of stoves are aoxidized and not melted, a kind of also many Chinese patents such as " spheric active carbon of Chinese invention patent 97101617
Preparation method " and Chinese invention patent 201010143602 " a kind of preparation method of bitumen ball " be briefly mentioned oxidation
Do not melt, but do not melt the corresponding method of processing offer to how to be aoxidized, and do not apply in industrialized production
In relevant report.
The content of the invention
The method for not melting processing is aoxidized to bitumen ball activated carbon present invention generally provides a kind of can industrialize.Can
To ensure that it is uniform, thorough that spheric active char combustion does not melt, it is to avoid material catches fire, burst etc. existing in oxidation, charcoal activation process
As, it is ensured that production is normally carried out and kept the safety in production.
The present invention adopts the following technical scheme that realization：
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove；
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 80~160 DEG C in 1h, stopping 1~5h, obtain preliminary oxidation
Bitumen ball activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation with 80~160 DEG C for initial temperature, with 4~10 DEG C/h heating rate liters
Temperature, final temperature is 300~330 DEG C, 2~5h of residence time, the bitumen ball activated carbon after being aoxidized.
There is the charging frame of superposition in oxidation furnace, every layer of charging frame is spaced apart, and material layering is seated in charging frame.
Stationary state is in charging frame of the material in oxidation furnace, for example, bitumen ball is put into fixed groove, but with charging
Frame rotate, aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flowing, with pitch
Ball contact is reacted, while the frame that feeds rotates in stove, it is ensured that material uniform hair in identical temperature, gaseous environment is answered,
Compared with flow method, collision, friction between material can be avoided, causes surface of material rough, in addition it is broken；Fixed with tradition
Method is compared, it is ensured that material thermally equivalent, reaction.Do not melt the stage using percolation plus the design swung in oxidation, solve oxygen
Change homogeneity question.
At present, the maximum loadings of oxidation furnace are 25 kilograms, and 2~10 cubic metres of air are needed per hour by per kilogram bitumen ball
It is passed through air.The stage is being started to warm up, with 80~160 DEG C/h heating rates from room temperature to 80~160 DEG C, stop 1~
5h, obtains the bitumen ball of preliminary oxidation.The bitumen ball of preliminary oxidation with 80~160 DEG C for initial temperature, with 4~10 DEG C/h liters
Warm speed heating, final temperature is 300~330 DEG C, 20~45h of total residence time, the bitumen ball after being aoxidized.In method
Key point and protection point are to be aoxidized in not melting process such as oxidizing temperature, heating rate, oxidization time technological parameter.
The above method is mainly studied parameters such as oxidizing temperature, oxidization time, heating rate, air inlets, it is ensured that spherical work
Property char combustion it is uniform, thoroughly, the high-temperature process such as follow-up charing, activation are not influenceed, industrialized production is met.
The inventive method causes bitumen ball activated carbon material can be avoided to catch fire in oxidation not melting process, and oxidation is equal
It is even, it is ensured that not ftracture, melt in follow-up charcoal activation high-temperature process, and the checking Jing Guo industrialized production.
Embodiment
The specific embodiment of the present invention is described in detail below.
Embodiment 1
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 120 DEG C in 1h, stopping 2h, obtain the bitumen ball of preliminary oxidation
Activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 120 DEG C with 6 DEG C/h heating rates, terminate temperature
Spend for 320 DEG C, residence time 4h, the bitumen ball activated carbon after being aoxidized.
Embodiment 2
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 120 DEG C in 1h, stopping 2.5h, obtain the pitch of preliminary oxidation
Ball activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 120 DEG C with 8 DEG C/h heating rates, terminate temperature
Spend for 320 DEG C, residence time 3h, the bitumen ball activated carbon after being aoxidized.
Embodiment 3
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 80 DEG C in 1h, stopping 5h, the bitumen ball for obtaining preliminary oxidation is lived
Property charcoal；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 80 DEG C with 5 DEG C/h heating rates, terminate temperature
Spend for 300 DEG C, residence time 4.5h, the bitumen ball activated carbon after being aoxidized.
Embodiment 4
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 100 DEG C in 1h, stopping 3h, obtain the bitumen ball of preliminary oxidation
Activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 100 DEG C with 10 DEG C/h heating rates, are terminated
Temperature is 330 DEG C, residence time 2h, the bitumen ball activated carbon after being aoxidized.
Embodiment 5
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 160 DEG C in 1h, stopping 5h, obtain the bitumen ball of preliminary oxidation
Activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 160 DEG C with 4 DEG C/h heating rates, terminate temperature
Spend for 310 DEG C, residence time 5h, the bitumen ball activated carbon after being aoxidized.
Embodiment 6
Method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, is comprised the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for being positioned over superposition in oxidation furnace, every layer of charging frame interval 1-3cm,
Aoxidized do not melt when, material charging frame in keep fix, gas charging frame between flow, with bitumen ball activated carbon
Contact reacts, while the frame that feeds rotates in stove.
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 140 DEG C in 1h, stopping 1h, obtain the bitumen ball of preliminary oxidation
Activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 140 DEG C with 4 DEG C/h heating rates, terminate temperature
Spend for 310 DEG C, residence time 2h, the bitumen ball activated carbon after being aoxidized.
It should be noted last that, the above embodiments are merely illustrative of the technical solutions of the present invention and it is unrestricted, although ginseng
It is described in detail according to the embodiment of the present invention, it will be understood by those within the art that, to technical scheme
Modify or equivalent substitution, without departure from the spirit and scope of technical scheme, it all should cover the present invention's
In claims.
Claims (2)
1. method is not melted in a kind of oxidation for industrialization bitumen ball activated carbon, it is characterised in that：Comprise the following steps：
（1）, place bitumen ball：
Bitumen ball activated carbon is layered to the charging inframe for the superposition being positioned in oxidation furnace, every layer of charging frame interval 1-3cm is entering
When row oxidation is not melted, material keeps fixing in charging frame, and gas flows between charging frame, is contacted with bitumen ball activated carbon
React, while the frame that feeds rotates in stove；
（2）, heating and oxidation：
3~10m is needed per hour by per kilogram bitumen ball activated carbon3Air is passed through in oxidation furnace；
A, the stage is being started to warm up, from room temperature to 80~160 DEG C in 1h, stopping 1~5h, obtain the pitch of preliminary oxidation
Ball activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 80~160 DEG C with 4~10 DEG C/h heating rates, eventually
Only temperature is 300~330 DEG C, 2~5h of residence time, the bitumen ball activated carbon after being aoxidized.
2. method is not melted in the oxidation according to claim 1 for industrialization bitumen ball activated carbon, it is characterised in that：Step
Suddenly（2）In,
A, the stage is being started to warm up, from room temperature to 120 DEG C in 1h, stopping 2~2.5h, obtain the bitumen ball of preliminary oxidation
Activated carbon；
B, the bitumen ball activated carbon of preliminary oxidation, for initial temperature, are heated up with 120 DEG C with 6~8 DEG C/h heating rates, terminate temperature
Spend for 320 DEG C, 3~4h of residence time, the bitumen ball activated carbon after being aoxidized.
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| CN106115687B (en) * | 2016-06-28 | 2017-11-28 | 山西新华化工有限责任公司 | Method is not melted in the oxidation of flow-type bitumen ball |
| CN107790118A (en) * | 2017-11-08 | 2018-03-13 | 山西新华化工有限责任公司 | For the technique of asphalt-base spherical activated carbon modification |
| CN112142487B (en) * | 2020-09-22 | 2021-09-10 | 中国科学院山西煤炭化学研究所 | Microwave-assisted asphalt oxidation non-melting method |
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| CN103272533B (en) * | 2013-06-08 | 2015-01-07 | 中国科学院山西煤炭化学研究所 | Pitch sphere oxidative stabilization method |
| CN104276569B (en) * | 2014-10-21 | 2016-01-27 | 中国科学院山西煤炭化学研究所 | A kind of method improving asphalt-base globular active carbon crushing strength |
| CN104927890B (en) * | 2015-06-09 | 2017-03-08 | 中国科学院山西煤炭化学研究所 | Bitumen ball aoxidizes infusible scale manufacturing technique and its device |
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