CN110314646A - Preparation method of carbon molecular sieve based on plant pollen - Google Patents
Preparation method of carbon molecular sieve based on plant pollen Download PDFInfo
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 229910052799 carbon Inorganic materials 0.000 title claims abstract description 37
- 239000002808 molecular sieve Substances 0.000 title claims abstract description 36
- URGAHOPLAPQHLN-UHFFFAOYSA-N sodium aluminosilicate Chemical compound [Na+].[Al+3].[O-][Si]([O-])=O.[O-][Si]([O-])=O URGAHOPLAPQHLN-UHFFFAOYSA-N 0.000 title claims abstract description 36
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- XPFVYQJUAUNWIW-UHFFFAOYSA-N furfuryl alcohol Chemical compound OCC1=CC=CO1 XPFVYQJUAUNWIW-UHFFFAOYSA-N 0.000 claims abstract description 39
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims abstract description 30
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 27
- 239000000047 product Substances 0.000 claims abstract description 19
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 239000007864 aqueous solution Substances 0.000 claims abstract description 15
- 238000000034 method Methods 0.000 claims abstract description 15
- 229910052757 nitrogen Inorganic materials 0.000 claims abstract description 15
- 238000001914 filtration Methods 0.000 claims abstract description 10
- 239000011259 mixed solution Substances 0.000 claims abstract description 9
- 239000008367 deionised water Substances 0.000 claims abstract description 7
- 229910021641 deionized water Inorganic materials 0.000 claims abstract description 7
- 239000012065 filter cake Substances 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims abstract description 7
- 239000012265 solid product Substances 0.000 claims abstract description 5
- 238000005406 washing Methods 0.000 claims abstract description 4
- 238000001291 vacuum drying Methods 0.000 claims abstract 2
- 241000196324 Embryophyta Species 0.000 claims description 21
- 238000010792 warming Methods 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 8
- 238000002604 ultrasonography Methods 0.000 claims description 6
- 241000234435 Lilium Species 0.000 claims description 5
- 240000001549 Ipomoea eriocarpa Species 0.000 claims description 3
- 235000005146 Ipomoea eriocarpa Nutrition 0.000 claims description 3
- 244000242564 Osmanthus fragrans Species 0.000 claims description 3
- 235000019083 Osmanthus fragrans Nutrition 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 abstract description 10
- 239000002699 waste material Substances 0.000 abstract description 4
- 238000001035 drying Methods 0.000 abstract 3
- 238000002791 soaking Methods 0.000 abstract 1
- 238000009210 therapy by ultrasound Methods 0.000 abstract 1
- 230000000052 comparative effect Effects 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 239000000243 solution Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003575 carbonaceous material Substances 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000007781 pre-processing Methods 0.000 description 2
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical compound [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 description 1
- 241000609240 Ambelania acida Species 0.000 description 1
- XMWRBQBLMFGWIX-UHFFFAOYSA-N C60 fullerene Chemical compound C12=C3C(C4=C56)=C7C8=C5C5=C9C%10=C6C6=C4C1=C1C4=C6C6=C%10C%10=C9C9=C%11C5=C8C5=C8C7=C3C3=C7C2=C1C1=C2C4=C6C4=C%10C6=C9C9=C%11C5=C5C8=C3C3=C7C1=C1C2=C4C6=C2C9=C5C3=C12 XMWRBQBLMFGWIX-UHFFFAOYSA-N 0.000 description 1
- 102000004190 Enzymes Human genes 0.000 description 1
- 108090000790 Enzymes Proteins 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- 239000003463 adsorbent Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- RHZUVFJBSILHOK-UHFFFAOYSA-N anthracen-1-ylmethanolate Chemical compound C1=CC=C2C=C3C(C[O-])=CC=CC3=CC2=C1 RHZUVFJBSILHOK-UHFFFAOYSA-N 0.000 description 1
- 239000003830 anthracite Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012620 biological material Substances 0.000 description 1
- 239000002802 bituminous coal Substances 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 210000005069 ears Anatomy 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 229910003472 fullerene Inorganic materials 0.000 description 1
- 230000007062 hydrolysis Effects 0.000 description 1
- 238000006460 hydrolysis reaction Methods 0.000 description 1
- 239000003077 lignite Substances 0.000 description 1
- 235000009973 maize Nutrition 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 239000002006 petroleum coke Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 239000005011 phenolic resin Substances 0.000 description 1
- 229920001568 phenolic resin Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
- B01J20/20—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising free carbon; comprising carbon obtained by carbonising processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
- B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
- B01J20/28057—Surface area, e.g. B.E.T specific surface area
- B01J20/28066—Surface area, e.g. B.E.T specific surface area being more than 1000 m2/g
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B32/00—Carbon; Compounds thereof
- C01B32/05—Preparation or purification of carbon not covered by groups C01B32/15, C01B32/20, C01B32/25, C01B32/30
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2253/00—Adsorbents used in seperation treatment of gases and vapours
- B01D2253/10—Inorganic adsorbents
- B01D2253/102—Carbon
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/4825—Polysaccharides or cellulose materials, e.g. starch, chitin, sawdust, wood, straw, cotton
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/40—Aspects relating to the composition of sorbent or filter aid materials
- B01J2220/48—Sorbents characterised by the starting material used for their preparation
- B01J2220/4812—Sorbents characterised by the starting material used for their preparation the starting material being of organic character
- B01J2220/485—Plants or land vegetals, e.g. cereals, wheat, corn, rice, sphagnum, peat moss
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Analytical Chemistry (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Carbon And Carbon Compounds (AREA)
Abstract
A preparation method of a carbon molecular sieve based on plant pollen comprises the following steps: soaking plant pollen in a mixed solution of methanol and water, then carrying out vacuum drying, adding dried pollen into furfuryl alcohol, carrying out ultrasonic treatment at room temperature, filtering, washing and drying a filter cake, reacting for 24 hours at 80-100 ℃ to obtain a solid product, placing the obtained solid product into nitrogen flow, heating to 600-1000 ℃, keeping the temperature for 2-6 hours to obtain a calcined product, adding the calcined product into a KOH aqueous solution, stirring at room temperature, filtering, drying the filter cake, placing the dried filter cake into the nitrogen flow, heating to 600-1000 ℃, keeping the temperature for 1-2 hours, washing with an HCl aqueous solution and deionized water, and drying to obtain a product, namely a carbon molecular sieve; the method is simple and convenient to operate, environment-friendly and pollution-free, reduces the waste of pollen, realizes resource utilization and saves resources.
Description
(1) technical field
The present invention relates to the preparation method of carbon molecular sieve, the preparation side of especially a kind of carbon molecular sieve based on plant pollen
Method belongs to carbon materials preparation field.
(2) background technique
Carbon molecular sieve (abbreviation CMS) is a kind of novel carbon material that early seventies grow up, and is a kind of novel excellent
Good adsorbent is mainly used for the separation of various mixed gases, has in the industries such as petrochemical industry, environmental improvement and thermomechanical aging
It is widely used, especially carbon molecular sieve more shows its unique superiority in air separation by PSA nitrogen producing craft.
The raw material for preparing CMS is extensive, mainly includes organic high molecular polymer (Saran resin, phenolic resin etc.), various
Coal and coal radical derivative (lignite, bituminous coal, anthracite etc.), petroleum by-products (petroleum residue, petroleum coke, asphalt etc.).Closely
Nian Lai, various biological materials (timber, shell, plant fiber, organic matter carbohydrate etc.) cheap and easy to get are used to prepare carbon molecules
Sieve to have obtained extensive research.It is disclosed in Chinese invention patent CN1475134A and a kind of carbon molecular sieve is prepared by apple pomace
Method, but raw material are squeezed, dry, crush, are screened, pre-process more complicated time-consuming.Chinese invention patent
A kind of method that carbon molecular sieve is prepared by bagasse is disclosed in CN106185916A, but is also required to carry out powder to raw material
Broken, high-temperature steam extruding, enzyme hydrolysis also needs that fullerene, thus preprocessing process not only very complicated, but also consumption energy consumption is added
When, increase preparation cost.
Pollen is phanerogamous male sex-cell, and for appearance in powdered, 1 plant of common maize male ears can produce 15,000,000
~3,000 ten thousand pollen, but for itself pollinate it is solid only account for very little part, remaining whole wastes, and is opened at present
Sending out the plant of pollen utilized has more than 9000 kinds.Due to pollen yield height, waste is serious, thus we are using plant pollen as raw material
Carbon molecular sieve is prepared, realizes that pollen resourceization utilizes.
(3) summary of the invention
For shortcoming and defect existing in the prior art, the present invention provides one kind to prepare carbon molecular sieve by plant pollen
Method.Carbon molecular sieve produced by the present invention has good prospects for commercial application in terms of gas absorption separation.
Technical scheme is as follows:
A kind of carbon molecular sieve preparation method based on plant pollen, described method includes following steps:
(1) plant pollen is impregnated into 1~3h with the methanol and water mixed solution of 1~4:1 of volume ratio, later 80~120
It is dried in vacuo at DEG C, obtains dry pollen；
The plant pollen is lilium pollen, sweet osmanthus pollen, morning glory pollen or zasiokaurin；
The volumetric usage of the methanol and water mixed solution is calculated as 30~50mL/g with the quality of plant pollen；
(2) dry pollen obtained by step (1) is added in furfuryl alcohol, ultrasound (80~120W) 2 under room temperature (20~30 DEG C)
~6h (preferably 4~6h), filtering, filter cake ethanol washing are dried at room temperature, are reacted for 24 hours at 80~100 DEG C, consolidate
Body product is spare；
The volumetric usage of the furfuryl alcohol is calculated as 10~20mL/g with the quality of dry pollen；
(3) step (2) obtained solid product is placed in nitrogen stream, with 1~10 DEG C/min's (preferably 5~10 DEG C/min)
Rate is warming up to 600~1000 DEG C (preferably 800~1000 DEG C), is kept the temperature 2~6h (preferably 4~6h), is obtained calcined product；
(4) calcined product obtained by step (3) is added in KOH aqueous solution, stirs 1~2h at room temperature, filtering, filter cake in
Dry 12h, is subsequently placed in nitrogen stream at 120 DEG C, with the rate of 1~5 DEG C/min be warming up to 600~1000 DEG C (preferably 800~
1000 DEG C), 1~2h is kept the temperature, then washed with HCL aqueous solution (0.2mol/L) and deionized water, dry 12h, is produced at 120 DEG C
Object carbon molecular sieve；
The concentration of the KOH aqueous solution is 1~5mol/L；
The volumetric usage of the KOH aqueous solution is calculated as 5~10mL/g with the quality of calcined product.
Beneficial effects of the present invention are as follows:
1. the pollen of choice of powder shape of the present invention prepares carbon molecular sieve as raw material, extruding is avoided, the complexity such as crushing
Preprocessing process, it is simple to operate.
2. carbon molecular sieve is prepared using environmental-friendly pollen, it is environment friendly and pollution-free, reduce the waste of pollen, realizes it
Resource utilization has saved resource.
(4) Detailed description of the invention
Fig. 1 is the SEM figure of lilium pollen carbon molecular sieve.
Fig. 2 is the TEM figure of lilium pollen carbon molecular sieve.
(5) specific embodiment
In order to preferably explain the present invention, the present invention is further explained in the light of specific embodiments, but the present invention
It is not limited to the following examples, is not departing from the content of present invention and range, change should all be included in technology of the invention
In range.
Embodiment 1
(1) 5g lilium pollen is taken, the methanol and water mixed solution 200mL for being 3:1 with volume ratio impregnate 2h, and at 100 DEG C
It is dry under vacuum condition；
(2) pollen 4g dry in step (1) is added in the furfuryl alcohol of 40mL, at room temperature ultrasound 6h, filtering, and uses second
Alcohol washs three times, is then dried at room temperature for, then react for 24 hours at 100 DEG C；
(3) product in step (2) is placed in nitrogen stream, is warming up to 800 DEG C with the heating rate of 10 DEG C/min, heat preservation
6h；
(4) the product 1g in step (3) is added in the KOH solution of 10mL 5mol/L, stirs 2h at room temperature, filtered,
Dry 12h, is subsequently placed in nitrogen stream at 120 DEG C, is warming up to 800 DEG C with the heating rate of 5 DEG C/min, keeps the temperature 2h, then use
The HCL aqueous solution and deionized water of 0.2mol/L is washed, and dry 12h obtains carbon molecular sieve at 120 DEG C, and specific surface area is
1575m2/g。
Comparative example 1
Other than pollen is modified without furfuryl alcohol, other prepare carbon molecular sieve according to the identical method of embodiment 1, and BET is surveyed
Test result shows that specific surface is about 826m2/g。
Embodiment 2
(1) 5g sweet osmanthus pollen is taken, the methanol and water mixed solution 200mL for being 3:1 with volume ratio impregnate 2h, and true at 80 DEG C
It is dry under empty condition；
(2) pollen 4g dry in step (1) is added in the furfuryl alcohol of 50mL, at room temperature ultrasound 4h, filtering, and uses second
Alcohol washs three times, is then dried at room temperature for, then react for 24 hours at 100 DEG C；
(3) product in step (2) is placed in nitrogen stream, is warming up to 800 DEG C with the heating rate of 5 DEG C/min, heat preservation
6h；
(4) the product 1g in step (3) is added in the KOH solution of 10mL 3mol/L, stirs 2h at room temperature, filtered,
Dry 12h, is subsequently placed in nitrogen stream at 120 DEG C, is warming up to 800 DEG C with the heating rate of 5 DEG C/min, keeps the temperature 2h, then use
The HCL aqueous solution and deionized water of 0.2mol/L is washed, and dry 12h obtains carbon molecular sieve at 120 DEG C, and specific surface area is
1520m2/g。
Comparative example 2
Other than pollen is modified without furfuryl alcohol, other prepare carbon molecular sieve according to the identical method of embodiment 2, and BET is surveyed
Test result shows that specific surface is about 815m2/g。
Embodiment 3
(1) 5g morning glory pollen is taken, the methanol and water mixed solution 200mL for being 3:1 with volume ratio impregnate 2h, and 100
It is dry under DEG C vacuum condition；
(2) pollen 4g dry in step (1) is added in the furfuryl alcohol of 60mL, at room temperature ultrasound 6h, filtering, and uses second
Alcohol washs three times, is then dried at room temperature for, then react for 24 hours at 100 DEG C；
(3) product in step (2) is placed in nitrogen stream, is warming up to 1000 DEG C with the heating rate of 10 DEG C/min, protects
Warm 4h；
(4) the product 1g in step (3) is added in the KOH solution of 10mL 5mol/L, stirs 2h at room temperature, filtered,
Dry 12h, is subsequently placed in nitrogen stream at 120 DEG C, is warming up to 1000 DEG C with the heating rate of 5 DEG C/min, keeps the temperature 1h, then use
The HCL aqueous solution and deionized water of 0.2mol/L is washed, and dry 12h obtains carbon molecular sieve 1683m at 120 DEG C2/g。
Comparative example 3
Other than pollen is modified without furfuryl alcohol, other prepare carbon molecular sieve according to the identical method of embodiment 3, and BET is surveyed
Test result shows that specific surface is about 932m2/g。
Embodiment 4
(1) 5g zasiokaurin is taken, the methanol and water mixed solution 200mL for being 3:1 with volume ratio impregnate 2h, and true at 80 DEG C
It is dry under empty condition；
(2) pollen 4g dry in step (1) is added in the furfuryl alcohol of 50mL, at room temperature ultrasound 4h, filtering, and uses second
Alcohol washs three times, is then dried at room temperature for, then react for 24 hours at 100 DEG C；
(3) product in step (2) is placed in nitrogen stream, is warming up to 1000 DEG C with the heating rate of 5 DEG C/min, heat preservation
4h；
(4) the product 1g in step (3) is added in the KOH solution of 10mL 3mol/L, stirs 2h at room temperature, filtered,
Dry 12h, is subsequently placed in nitrogen stream at 120 DEG C, is warming up to 1000 DEG C with the heating rate of 5 DEG C/min, keeps the temperature 2h, then use
The HCL aqueous solution and deionized water of 0.2mol/L is washed, and dry 12h obtains carbon molecular sieve 1612m at 120 DEG C2/g。
Comparative example 4
Other than pollen is modified without furfuryl alcohol, other prepare carbon molecular sieve according to the identical method of embodiment 4, and BET is surveyed
Test result shows that specific surface is about 903m2/g。
CO is carried out to each embodiment and comparative example2Absorption test, operating procedure are as follows: will be prepared by each embodiment and comparative example
Carbon molecular sieve at 200 DEG C vacuum outgas 6h, then using Autosorb-iQ (Quantachrome company, the U.S.) physics inhale
Attached instrument is 25 DEG C in temperature, and pressure tests CO under conditions of being 1bar2Adsorption and desorption performance, the result is as follows:
Each embodiment of table 1 and comparative example are to CO2Absorption property
Claims (7)
1. a kind of carbon molecular sieve preparation method based on plant pollen, which is characterized in that described method includes following steps:
(1) plant pollen is impregnated into 1~3h with the methanol and water mixed solution of 1~4:1 of volume ratio, later at 80~120 DEG C
Vacuum drying, obtains dry pollen；
(2) dry pollen obtained by step (1) is added in furfuryl alcohol, at room temperature 2~6h of ultrasound, filtering, filter cake ethanol washing,
It dries at room temperature, is reacted at 80~100 DEG C for 24 hours, it is spare to obtain solid product；
(3) step (2) obtained solid product is placed in nitrogen stream, is warming up to 600~1000 with the rate of 1~10 DEG C/min
DEG C, 2~6h is kept the temperature, calcined product is obtained；
(4) calcined product obtained by step (3) is added in KOH aqueous solution, stirs 1~2h at room temperature, filtering, filter cake is in 120
Dry 12h, is subsequently placed in nitrogen stream at DEG C, is warming up to 600~1000 DEG C with the rate of 1~5 DEG C/min, keeps the temperature 1~2h, then
It is washed with HCL aqueous solution and deionized water, dry 12h, obtains product carbon molecular sieve at 120 DEG C.
2. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (1), institute
Stating plant pollen is lilium pollen, sweet osmanthus pollen, morning glory pollen or zasiokaurin.
3. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (1), institute
It states the volumetric usage of methanol and water mixed solution and 30~50mL/g is calculated as with the quality of plant pollen.
4. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (2), institute
It states the volumetric usage of furfuryl alcohol and 10~20mL/g is calculated as with the quality of dry pollen.
5. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (4), institute
The concentration for stating KOH aqueous solution is 1~5mol/L.
6. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (4), institute
It states the volumetric usage of KOH aqueous solution and 5~10mL/g is calculated as with the quality of calcined product.
7. the carbon molecular sieve preparation method based on plant pollen as described in claim 1, which is characterized in that in step (4), institute
The concentration for stating HCL aqueous solution is 0.2mol/L.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20110265656A1 (en) * | 2010-04-29 | 2011-11-03 | Hai Xu | Method and apparatus for air purification |
| CN108455600A (en) * | 2018-03-07 | 2018-08-28 | 郑州大学 | A kind of preparation method of biomass graded porous carbon materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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