CN109970057A - Cellular activated carbon based on coal liquefaction residue and semi-coke end - Google Patents
Cellular activated carbon based on coal liquefaction residue and semi-coke end Download PDFInfo
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- CN109970057A CN109970057A CN201910360810.0A CN201910360810A CN109970057A CN 109970057 A CN109970057 A CN 109970057A CN 201910360810 A CN201910360810 A CN 201910360810A CN 109970057 A CN109970057 A CN 109970057A
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- C01B32/00—Carbon; Compounds thereof
- C01B32/30—Active carbon
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- C01B32/318—Preparation characterised by the starting materials
- C01B32/33—Preparation characterised by the starting materials from distillation residues of coal or petroleum; from petroleum acid sludge
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- C01B32/30—Active carbon
- C01B32/312—Preparation
- C01B32/336—Preparation characterised by gaseous activating agents
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Abstract
It is to be prepared after 100:50~100:20~100:4~40:4~20:5~20:30~35:1~8 is mixed through kneading and compacting, pre-oxidation, charing, activation that the invention discloses a kind of cellular activated carbon based on coal liquefaction residue and semi-coke end is by coal liquefaction residual powder, semi-coke end, auxiliary carbonaceous material, water, organic binder, inorganic binder, adhesive aid, release agent in mass ratio.The specific surface area of cellular activated carbon of the present invention is 300~800m2/ g, intensity are 2~5MPa, take full advantage of the inorganic salts in coal liquefaction residue, under the premise of not influencing product specific surface area, effectively raise the mechanical compression strength of cellular activated carbon, semi-coke end is overcome simultaneously without cohesiveness or the characteristics of weakly caking, and advantage few to its ash content, that phosphorus content is high is efficiently used, and is reduced activated carbon raw material cost, is improved the overall efficiency of coal liquefaction craft.
Description
Technical field
The invention belongs to cellular activated carbon technical fields, and in particular to a kind of coal liquefaction residue and the compounding preparation of semi-coke end
Cellular activated carbon.
Background technique
It is one of the effective way for solving oil shortage using ICL for Indirect Coal Liquefaction technology production liquid-fuel oil.However herein
In production process, no matter which kind of liquefaction process is used, can all generate the solid residue for accounting for about liquefaction raw coal amount 30% or so.This portion
Residue is divided mainly to be made of organic matter and inanimate matter.Organic species therein include heavy coal liquids, bitumen and not
The coal of conversion；Inorganic matter includes inorganic mineral and additional catalyst.If these residues cannot be used well
The waste of resource will be will cause, and residue treatment is improper can also cause environmental pollution.Therefore, how these residues are rationally utilized,
Have great importance for improving coal liquefaction craft, improving coal liquefaction whole economic efficiency.Currently, the utilization of coal liquefaction residue
Burning, pyrolysis generally are taken, gasify and prepares the schemes such as Carbon Materials.No matter which kind of approach, residue mineral and catalysis are used
The presence of agent powder can all have an adverse effect to further effectively high-value-use.
Semi-coke is also known as semicoke in early stage, be no cohesiveness or weakly caking high-volatile bituminous coal under middle cryogenic conditions,
The solid carbonaceous product contained compared with low volatile that carbonization obtains.Semi-coke end is semi-coke in production, transport and stored
The powder generated in journey cannot act as ferroalloy, calcium carbide production carbonaceous reductant or fixed bed since its granularity is very small
Gasified raw material can only be used as fuel, gasified raw material and blast furnace blowing raw material etc., not give full play of its fixed carbon and contain
The features such as amount is high, ash content and volatile matter content are low, causes the significant wastage of high-quality resource.
Active carbon, and can be with after acid-alkali-corrosive-resisting, failure due to its huge specific surface area and excellent absorption property
Repeatedly the features such as regeneration, it is widely used in the industries such as environmental protection, food, medicine, chemical industry, traffic and aerospace.Conventional carbon
Material such as granular activated carbon, column-shaped active carbon, spheric active carbon etc., although there is preferable absorption property, in adsorption process
In resistance that air-flow is passed through it is larger (i.e. pressure drop is larger), cause energy consumption to increase.Cellular activated carbon is a kind of novel environment friendly activity
Charcoal waste gas purification product, can be effectively reduced peculiar smell and pollutant.Cellular activated carbon has percent opening height, the pressure loss small, in
Conducive to gas-liquid transmission, dispersed phase holdup is small to wait unique advantage in the channel that portion is straight.The mechanical performance and absorption property of cellular activated carbon
It is two major parameters of its quality height.The main component of coal liquefaction residue is silicon, aluminium and iron compound, inorganic salts ingredients
The crystal framework structure that active carbon can be formed has facilitation for the increase of the mechanical strength of cellular activated carbon.Make at semi-coke end
For a kind of industry byproduct, abundance is cheap, and has many advantages, such as that ash content is few, phosphorus content is high, is to prepare activity
The good raw material of charcoal.
Summary of the invention
The purpose of the present invention is during overcoming coal liquefaction residue and semi-coke end to comprehensively utilize there are the shortcomings that, one kind is provided
Make full use of coal liquefaction residue, semi-coke end compositing characteristic, the cellular activated carbon with some strength and specific surface area of preparation, from
And it realizes the high level at coal liquefaction residue and semi-coke end and recycles.
For above-mentioned purpose, cellular activated carbon of the present invention is by coal liquefaction residual powder, semi-coke end, auxiliary carbonaceous
Material, water, organic binder, inorganic binder, adhesive aid, release agent are 100:50~100:20~100:4 in mass ratio
~40:4~20:5~20:30~35:1~8 mix, gained mixture through kneading and compacting, pre-oxidation, charing, activation preparation and
At.
Above-mentioned auxiliary carbonaceous material is anthracite, lignite, any one in petroleum coke；Organic binder is high temperature coal tar
Oil, mid temperature pitch, thermosetting phenolic resin, petroleum residual oil, any one in de-oiled asphalt；Inorganic binder is zinc chloride, three
Any one in polyphosphate sodium, aluminum oxide；Adhesive aid is expanded starch or carboxymethyl cellulose；Release agent be silicone oil,
Methyl-silicone oil, vegetable oil, any one in paraffin.Wherein coal liquefaction residual powder, semi-coke end, auxiliary carbonaceous material partial size be
Below 160 mesh.
In cellular activated carbon of the present invention, preferably coal liquefaction residual powder and semi-coke are last, assist carbonaceous material, water, organic adhesive
Agent, inorganic binder, adhesive aid, release agent mass ratio be 100:80~100:40~80:14~30:10~15:10~
15:32~35:3~6.
In cellular activated carbon of the present invention, further preferred coal liquefaction residual powder and semi-coke end, water, have auxiliary carbonaceous material
Machine binder, inorganic binder, adhesive aid, release agent mass ratio be 100:80~100:55~65:20~25:12~
14:13~15:32~35:4~5.
In above-mentioned cellular activated carbon, the method for kneading and compacting are as follows: it is uniform that gained mixture is fitted into kneading in kneading machine,
At 10~45 DEG C, it is pressed into the honeycomb blank that wall thickness is 1~2mm, entire widths are 2.0~2.6mm with honeycomb extrusion shaping machine,
It places 2 days at room temperature.
In above-mentioned cellular activated carbon, the method for the pre-oxidation are as follows: be put into the honeycomb blank obtained after kneading and compacting
In tube type resistance furnace, 280~350 DEG C are warming up to 2~8 DEG C 1~10L/min of air mass flow, heating rate/min, constant temperature 1~5
Hour；It is preferred that the honeycomb blank obtained after kneading and compacting is put into tube type resistance furnace, with 4~6L/min of air mass flow, liter
Warm 3~5 DEG C/min of rate is warming up to 300~320 DEG C, constant temperature 3~4 hours.
In above-mentioned cellular activated carbon, the method for the charing are as follows: be put into the honeycomb-shaped oxidizing charcoal obtained after pre-oxidizing
In tube type resistance furnace, under nitrogen protection, 600 DEG C, constant temperature 1 hour are warming up to the heating rate of 5 DEG C/min.
In above-mentioned cellular activated carbon, the method for the activation are as follows: the honeycomb charcoal obtained after carbonizing is placed in tube furnace
Flat-temperature zone, in N2It is warming up to 700~900 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated 2 hours.
Beneficial effects of the present invention are as follows:
1, the present invention adulterates other different types of carbonaceous materials, glues using coal liquefaction residue, semi-coke end as persursor material
Agent etc. is tied, is prepared into cellular activated carbon through molding, pre-oxidation, charing and activation, overcomes coal liquefaction residue comprehensive utilization process
Adverse effect caused by middle inorganic residues ash content is big, the inorganic component being rationally and effectively utilized in coal liquefaction residue improve bee
The mechanical strength of nest active carbon overcomes semi-coke end without cohesiveness or weakly caking using the higher caking property of coal liquefaction residue
Feature.It is effectively utilized the advantage that semi-coke end ash content is few, phosphorus content is high simultaneously, becomes the good raw material for preparing active carbon.
And the auxiliary charcoal matrix using unconverted coal as active carbon, heavy coal liquids and pitch are prepared into specific surface as binder
300~800m of product2The cellular activated carbon of/g, 2~5MPa of intensity.
2, the present invention takes full advantage of compared with the method for comprehensive utilization such as the burning of existing coal liquefaction residue, pyrolysis, gasification
Inorganic salts in coal liquefaction residue effectively raise cellular activated carbon under the premise of not influencing product specific surface area
Mechanical compression strength.The characteristics of the present invention overcomes semi-coke ends without cohesiveness or weakly caking simultaneously, and it is few, carbon containing to its ash content
It measures high advantage to be efficiently used, becomes the good raw material for preparing active carbon.
3, primary raw material used in the present invention is industrial residue, can reduce activated carbon raw material cost, improves coal liquefaction craft
Overall efficiency.
Specific embodiment
Below with reference to embodiment, the present invention is described in more detail, but protection scope of the present invention is not limited only to these realities
Apply example.
Merck & Co., Inc, the U.S. (micromeritics) ASAP-2020M type automatically fast speed ratio table is used in following example
Area and lacunarity analysis instrument measure the BET specific surface area of active carbon, before sample measurement 250 under vacuum condition at N277K
DEG C processing 8h (10-2Torr)；Mechanical strength is tested referring to People's Republic of China (PRC) national standard GB1964-80, and test sample is high
2cm, diameter 2cm, the control of test pressing speed increase pressure until Alveolate activated carbon is broken, so in 2.5 ± 0.1mm/min
Compression strength value is obtained divided by cross-sectional area (including void area) by maximum pressure value afterwards.
Embodiment 1
Coal liquefaction residue, semi-coke end and petroleum coke powder are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 50g is blue
Charcoal end, 30g petroleum coke, 8g water, 8g high temperature coal-tar, 5g zinc chloride, 30g expanded starch, 1g silicone oil are fitted into kneading machine, kneading
Uniformly, it is pressed into the honeycomb blank that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 25 DEG C, in room temperature
It is lower to place 2 days.Honeycomb blank is put into tube type resistance furnace, under 5L/min air tolerance, with the heating rate liter of 5 DEG C/min
Temperature constant temperature 4 hours, obtains honeycomb-shaped oxidizing charcoal to 320 DEG C.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace, nitrogen protection
Under, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.Honeycomb charcoal is placed in tube furnace
Flat-temperature zone, in N2It is warming up to 850 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, 2h is activated, obtains BET ratio
Surface area 300m2The cellular activated carbon of/g, compression strength 4.2MPa.
Embodiment 2
Coal liquefaction residue, semi-coke end and lignite are crushed to 160 mesh hereinafter, then by 100g coal liquefaction residue, 60g semi-coke
End, 20g lignite, 4g water, 4g mid temperature pitch, 8g sodium tripolyphosphate, 31g carboxymethyl cellulose, 2g methyl-silicone oil are packed into kneading machine
In, kneading is uniform, is pressed into the honeycomb hair that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 25 DEG C
Base is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 3L/min air tolerance, with 8 DEG C/min's
Heating rate is warming up to 300 DEG C, constant temperature 5 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace
In, under nitrogen protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By honeycomb
Charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 750 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated
2h obtains BET specific surface area 330m2The cellular activated carbon of/g, compression strength 4.1MPa.
Embodiment 3
Coal liquefaction residue, semi-coke end and anchracite duff are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 70g is blue
Charcoal end, 35g anthracite, 13g water, 20g thermosetting phenolic resin, 16g aluminum oxide, 31g carboxymethyl cellulose, 8g vegetable oil
Be fitted into kneading machine, kneading is uniform, at 10 DEG C with honeycomb extrusion shaping machine be pressed into wall thickness be 1mm, entire widths 2.6mm
Honeycomb blank, at room temperature place 2 days.Honeycomb blank is put into tube type resistance furnace, under 1L/min air tolerance, with 5
DEG C/heating rate of min is warming up to 280 DEG C, constant temperature 4 hours, obtain honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tubular type
In resistance furnace, under nitrogen protection, 600 DEG C is warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.It will
Honeycomb charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 700 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, it is living
Change processing 2h, obtains BET specific surface area 450m2The cellular activated carbon of/g, compression strength 3.6MPa.
Embodiment 4
Coal liquefaction residue, semi-coke end and anchracite duff are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 80g is blue
Charcoal end, 100g anthracite, 40g water, 17g petroleum residual oil, 20g zinc chloride, 30g expanded starch, 7g paraffin are fitted into kneading machine, are mixed
It pinches uniformly, the honeycomb blank that wall thickness is 1mm, entire widths are 2.6mm is pressed into honeycomb extrusion shaping machine at 30 DEG C, in room
Temperature is lower to place 2 days.Honeycomb blank is put into tube type resistance furnace, under 2L/min air tolerance, with the heating rate of 5 DEG C/min
290 DEG C are warming up to, constant temperature 5 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace, nitrogen is protected
Under shield, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.Honeycomb charcoal is placed in tubular type
Furnace flat-temperature zone, in N2It is warming up to 800 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, 2h is activated, obtains BET
Specific surface area 550m2The cellular activated carbon of/g, compression strength 2.0MPa.
Embodiment 5
Coal liquefaction residue, semi-coke end and lignite are crushed to 160 mesh hereinafter, then by 100g coal liquefaction residue, 80g semi-coke
End, 40g lignite, 16g water, 110g de-oiled asphalt, 12g aluminum oxide, 32g carboxymethyl cellulose, 3g vegetable oil are packed into kneading
In machine, kneading is uniform, is pressed into the honeycomb hair that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 28 DEG C
Base is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 3L/min air tolerance, with 5 DEG C/min's
Heating rate is warming up to 300 DEG C, constant temperature 1 hour, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace
In, under nitrogen protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By honeycomb
Charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 850 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated
2h obtains BET specific surface area 330m2The cellular activated carbon of/g, compression strength 5MPa.
Embodiment 6
Coal liquefaction residue, semi-coke end and petroleum coke powder are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 90g is blue
Charcoal end, 65g petroleum coke, 30g water, 15g high temperature coal-tar, 11g zinc chloride, 34g expanded starch, 6g silicone oil are fitted into kneading machine,
Kneading is uniform, is pressed into the honeycomb blank that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 40 DEG C,
It places 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 5L/min air tolerance, with the heating speed of 4 DEG C/min
Rate is warming up to 310 DEG C, constant temperature 3 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace, nitrogen
Under protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.Honeycomb charcoal is placed in pipe
Formula furnace flat-temperature zone, in N2It is warming up to 900 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, 2h is activated, obtains
BET specific surface area 430m2The cellular activated carbon of/g, compression strength 3.6MPa.
Embodiment 7
Coal liquefaction residue, semi-coke end and anchracite duff are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 85g is blue
Charcoal end, 50g anthracite, 19g water, 11g mid temperature pitch, 10g sodium tripolyphosphate, 33g expanded starch, 6g methyl-silicone oil are packed into kneading
In machine, kneading is uniform, is pressed into the honeycomb hair that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 38 DEG C
Base is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 7L/min air tolerance, with 3 DEG C/min's
Heating rate is warming up to 320 DEG C, constant temperature 5 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace
In, under nitrogen protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By honeycomb
Charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 700 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated
2h obtains BET specific surface area 380m2The cellular activated carbon of/g, compression strength 4.8MPa.
Embodiment 8
Coal liquefaction residue, semi-coke end and lignite are crushed to 160 mesh hereinafter, then that 100g coal liquefaction residue, 100g is blue
Charcoal end, 80g lignite, 28g water, 15g thermosetting phenolic resin, 12g aluminum oxide, 35g carboxymethyl cellulose, 3g vegetable oil dress
Enter in kneading machine, kneading is uniform, is pressed into honeycomb extrusion shaping machine that wall thickness is 1mm, entire widths are 2.6mm's at 45 DEG C
Honeycomb blank is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 9L/min air tolerance, with 8 DEG C/
The heating rate of min is warming up to 330 DEG C, constant temperature 4 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tubular type electricity
It hinders in furnace, under nitrogen protection, is warming up to 600 DEG C with the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By bee
Nest shape charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 800 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, activates
2h is handled, BET specific surface area 500m is obtained2The cellular activated carbon of/g, compression strength 3.3MPa.
Embodiment 9
Coal liquefaction residue, semi-coke end and petroleum coke powder are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 80g is blue
Charcoal end, 55g petroleum coke, 20g water, 12g petroleum residual oil, 13g zinc chloride, 34g expanded starch, 5g paraffin are fitted into kneading machine, are mixed
It pinches uniformly, the honeycomb blank that wall thickness is 1mm, entire widths are 2.6mm is pressed into honeycomb extrusion shaping machine at 42 DEG C, in room
Temperature is lower to place 2 days.Honeycomb blank is put into tube type resistance furnace, under 8L/min air tolerance, with the heating rate of 5 DEG C/min
340 DEG C are warming up to, constant temperature 2 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace, nitrogen is protected
Under shield, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.Honeycomb charcoal is placed in tubular type
Furnace flat-temperature zone, in N2It is warming up to 900 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, 2h is activated, obtains BET
Specific surface area 630m2The cellular activated carbon of/g, compression strength 4.3MPa.
Embodiment 10
Coal liquefaction residue, semi-coke end and anchracite duff are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 85g is blue
Charcoal end, 60g anthracite, 22g water, 13g de-oiled asphalt, 15g sodium tripolyphosphate, 33g carboxymethyl cellulose, 4g silicone oil are packed into kneading
In machine, kneading is uniform, is pressed into the honeycomb hair that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 40 DEG C
Base is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 3L/min air tolerance, with 3 DEG C/min's
Heating rate is warming up to 350 DEG C, constant temperature 3 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace
In, under nitrogen protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By honeycomb
Charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 750 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated
2h obtains BET specific surface area 650m2The cellular activated carbon of/g, compression strength 4.2MPa.
Embodiment 11
Coal liquefaction residue, semi-coke end and lignite are crushed to 160 mesh hereinafter, then by 100g coal liquefaction residue, 90g semi-coke
End, 65g lignite, 24g water, 14g high temperature coal-tar, 14g aluminum oxide, 32g expanded starch, 4g methyl-silicone oil are packed into kneading machine
In, kneading is uniform, is pressed into the honeycomb hair that wall thickness is 1mm, entire widths are 2.6mm with honeycomb extrusion shaping machine at 18 DEG C
Base is placed 2 days at room temperature.Honeycomb blank is put into tube type resistance furnace, under 2L/min air tolerance, with 2 DEG C/min's
Heating rate is warming up to 300 DEG C, constant temperature 1 hour, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace
In, under nitrogen protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.By honeycomb
Charcoal is placed in tube furnace flat-temperature zone, in N2It is warming up to 800 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, is activated
2h obtains BET specific surface area 800m2The cellular activated carbon of/g, compression strength 3.8MPa.
Embodiment 12
Coal liquefaction residue, semi-coke end and petroleum coke powder are broken to 160 mesh hereinafter, then that 100g coal liquefaction residue, 95g is blue
Charcoal end, 60g petroleum coke, 25g water, 13g mid temperature pitch, 13g zinc chloride, 35g expanded starch, 5g paraffin are fitted into kneading machine, are mixed
It pinches uniformly, the honeycomb blank that wall thickness is 1mm, entire widths are 2.6mm is pressed into honeycomb extrusion shaping machine at 23 DEG C, in room
Temperature is lower to place 2 days.Honeycomb blank is put into tube type resistance furnace, under 10L/min air tolerance, with the heating speed of 4 DEG C/min
Rate is warming up to 310 DEG C, constant temperature 3 hours, obtains honeycomb-shaped oxidizing charcoal.Honeycomb-shaped oxidizing charcoal is put into tube type resistance furnace, nitrogen
Under protection, 600 DEG C are warming up to the heating rate of 5 DEG C/min, constant temperature 1 hour, obtains honeycomb charcoal.Honeycomb charcoal is placed in pipe
Formula furnace flat-temperature zone, in N2It is warming up to 850 DEG C under protection, water vapour is passed through with the flow velocity of 0.5mL/min, 2h is activated, obtains
BET specific surface area 750m2The cellular activated carbon of/g, compression strength 3.8MPa.
Claims (10)
1. a kind of cellular activated carbon based on coal liquefaction residue and semi-coke end, it is characterised in that: the cellular activated carbon is by coal
Liquefied residue powder, semi-coke end, auxiliary carbonaceous material, water, organic binder, inorganic binder, adhesive aid, release agent press quality
Than for 100:50~100:20~100:4~40:4~20:5~20:30~35:1~8 mixing, gained mixture through kneading at
Type, pre-oxidation, charing, activation are prepared；
Above-mentioned auxiliary carbonaceous material is anthracite, lignite, any one in petroleum coke；
Above-mentioned organic binder is high temperature coal-tar, in mid temperature pitch, thermosetting phenolic resin, petroleum residual oil, de-oiled asphalt
Any one；
Above-mentioned inorganic binder is zinc chloride, sodium tripolyphosphate, any one in aluminum oxide；
Above-mentioned adhesive aid is expanded starch or carboxymethyl cellulose.
2. the cellular activated carbon according to claim 1 based on coal liquefaction residue and semi-coke end, it is characterised in that: described
Coal liquefaction residual powder and semi-coke end, auxiliary carbonaceous material, water, organic binder, inorganic binder, adhesive aid, release agent
Mass ratio is 100:80~100:40~80:14~30:10~15:10~15:32~35:3~6.
3. the cellular activated carbon according to claim 1 based on coal liquefaction residue and semi-coke end, it is characterised in that: described
Coal liquefaction residual powder and semi-coke end, auxiliary carbonaceous material, water, organic binder, inorganic binder, adhesive aid, release agent
Mass ratio is 100:80~100:55~65:20~25:12~14:13~15:32~35:4~5.
4. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, feature
Be: the release agent is silicone oil, methyl-silicone oil, vegetable oil, any one in paraffin.
5. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, feature
It is the method for the kneading and compacting are as follows: it is uniform that gained mixture is fitted into kneading in kneading machine, at 10~45 DEG C, uses honeycomb
Extrusion shaping machine is pressed into the honeycomb blank that wall thickness is 1~2mm, entire widths are 2.0~2.6mm, places 2 days at room temperature.
6. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, feature
It is the method for the pre-oxidation are as follows: the honeycomb blank obtained after kneading and compacting is put into tube type resistance furnace, with air stream
2~8 DEG C 1~10L/min of amount, heating rate/min are warming up to 280~350 DEG C, constant temperature 1~5 hour.
7. the cellular activated carbon according to claim 6 based on coal liquefaction residue and semi-coke end, it is characterised in that described pre-
The method of oxidation are as follows: the honeycomb blank obtained after kneading and compacting is put into tube type resistance furnace, with 4~6L/ of air mass flow
3~5 DEG C min, heating rate/min are warming up to 300~320 DEG C, constant temperature 3~4 hours.
8. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, feature
It is the method for the charing are as follows: the honeycomb-shaped oxidizing charcoal obtained after pre-oxidizing is put into tube type resistance furnace, nitrogen protection
Under, 600 DEG C, constant temperature 1 hour are warming up to the heating rate of 5 DEG C/min.
9. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, feature
It is the method for the activation are as follows: the honeycomb charcoal obtained after carbonizing is placed in tube furnace flat-temperature zone, in N2The lower heating of protection
To 700~900 DEG C, water vapour is passed through with the flow velocity of 0.5mL/min, is activated 2 hours.
10. the cellular activated carbon according to any one of claims 1 to 3 based on coal liquefaction residue and semi-coke end, special
Sign is: the coal liquefaction residual powder, assists the partial size of carbonaceous material for below 160 mesh at semi-coke end.
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| CN115594177A (en) * | 2022-10-24 | 2023-01-13 | 龙岩市华研活性炭科技有限公司（Cn） | Novel honeycomb activated carbon special for catalytic combustion adsorption and desorption and preparation method thereof |
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