CN106512938A - Preparation technology of bamboo columnar carbon with ultrahigh performance - Google Patents

Preparation technology of bamboo columnar carbon with ultrahigh performance Download PDF

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Publication number
CN106512938A
CN106512938A CN201611031500.7A CN201611031500A CN106512938A CN 106512938 A CN106512938 A CN 106512938A CN 201611031500 A CN201611031500 A CN 201611031500A CN 106512938 A CN106512938 A CN 106512938A
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China
Prior art keywords
bamboo
charcoal
preparation technology
mixture
column
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Pending
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CN201611031500.7A
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Chinese (zh)
Inventor
王洪炳
韩进
房雷
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Jiangsu Purestar Environmental Science & Technology Co Ltd
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Jiangsu Purestar Environmental Science & Technology Co Ltd
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Priority to CN201611031500.7A priority Critical patent/CN106512938A/en
Publication of CN106512938A publication Critical patent/CN106512938A/en
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    • 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
    • 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
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—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 form
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F1/00—Treatment of water, waste water, or sewage
    • C02F1/28—Treatment of water, waste water, or sewage by sorption
    • C02F1/281—Treatment of water, waste water, or sewage by sorption using inorganic sorbents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/70—Organic compounds not provided for in groups B01D2257/00 - B01D2257/602
    • B01D2257/708—Volatile organic compounds V.O.C.'s
    • 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

Abstract

The invention discloses a preparation technology of a bamboo columnar carbon with ultrahigh performance. The preparation technology comprises steps as follows: S1), selection of a raw material: the raw material is a bamboo carbonized material; S2), grinding and sieving: the raw material is sieved with a 325-mesh sieve, and the bamboo carbonized material of 325 meshes or fewer than 325 meshes is taken as one raw material; S3), powder grinding and material mixing: a small amount of petroleum asphalt is added to the bamboo carbonized material powder of 325 meshes or fewer than 325 meshes for powder grinding and mixing treatment, and a first mixture is obtained; S4), stirring: water is added to the first mixture for stirring; S5), pre-extrusion; S6), pressing and extrusion molding; S7), segmented drying; S8), carbonizing; S9), gradient type activation: the carbonized material is put in an activating furnace to be activated for 1-2 h at the temperature of 750-850 DEG C and then is activated for 1-3 h after the temperature is increased to 850-950 DEG C, and the bamboo columnar activated carbon is obtained. The bamboo columnar activated carbon prepared with the technology has the characteristics that strength, adsorbability and adsorption capacity are high, the ash content is low, adsorption speed and desorption speed are high, obvious cracks on the outer surface are avoided, the yield of follow-up carbonized and activated products is high and the like.

Description

A kind of preparation technology of very-high performance bamboo charcoal column charcoal
【Technical field】
The invention belongs to technology for manufacturing activated carbon, more particularly to a kind of preparation work of very-high performance bamboo charcoal column charcoal Skill.
【Background technology】
Activated carbon is applied in many fields, especially now as a kind of very outstanding filter medium It is whether purified water or purify air in field of environment protection, it all becomes current leading role.At present in activated carbon industry The main forming charcoal in face or ature of coal column charcoal, the only manufacturer of minority can produce coconut husk column charcoal, and produce Product quality be not fine, intensity is relatively low, limited sorption capacity, does not possess good energy of adsorption to special adsorbate Power.That comparatively ash content is higher, content of beary metal is more, adsorption effect compares is poor for ature of coal column charcoal, at present in water purification row Can not use in a large number in industry, particularly in household drinking water, staple market is the wastewater treatment and exhaust-gas treatment of more low side Field, the process of VOCs is currently topmost application, is existed according to the ature of coal column charcoal of different specifications and adsorption capacity Used in different applications.
Therefore, it is necessary to provide a kind of preparation technology of new very-high performance bamboo charcoal column charcoal to solve the above problems.
【The content of the invention】
Present invention is primarily targeted at providing a kind of preparation technology of very-high performance bamboo charcoal column charcoal, its bamboo for producing Matter column-shaped active carbon has that intensity height, high adsorption capacity, adsorption capacity are big, ash content is few, the rate of adsorption is fast, desorption rate is fast, outer Table without obvious crackle, follow-up carbonization-activation product yield is high the features such as.
The present invention is achieved through the following technical solutions above-mentioned purpose：A kind of preparation technology of very-high performance bamboo charcoal column charcoal, Comprise the following steps,
S1) selected raw material：The bamboo matter carbonized material of high-quality is selected as raw material；
S2) grind, sieve：Bamboo matter carbonized material is ground, the bamboo matter carbonized material after grinding is carried out through the screen cloth of 325 mesh Sieve, the bamboo matter carbonized material below 325 mesh is taken as one of raw material；
S3) be milled batch mixing：Taking during a small amount of asphalt adds the following bamboo matter charing feed powder of 325 mesh is carried out at milling mixing Reason obtains the first mixture；
S4) stir：In first mixture, add water to be stirred obtain the second mixture；
S5) pre-extrusion：Second mixture is put in mould, is applied pressure, is done pre-extrusion, be next step into Type is prepared；
S6) suppress extrusion molding：It is pressed in mould and extrudes segmentation, obtains column charcoal；
S7) segmentation drying：Including prebake with dry completely；
S8) carbonize；
S9) gradient type activation：The material for having carbonized is put in activation furnace and is activated, temperature is activated for 750～850 DEG C 1～2h, after be warming up to 850～950 DEG C activation 1～3h, that is, obtain bamboo charcoal column-shaped active carbon.
Further, the ratio of the first mixture petrochina pitch and 325 mesh following bamboo matter charing feed powder for (6～ 8)：(2～4).
Further, the ratio of the first mixture and water described in second mixture is (8～10)：(1～1.5).
Further, in the pre-bake step, drying temperature is 40～50 DEG C, and the duration is 30min.
Further, in the complete baking step, drying temperature is 60～80 DEG C.
Further, in the carbonization, its carbonization temperature is 280～600 DEG C, and carbonization time is 1.5～2h, treats charcoal Column charcoal after change is gradually reduced and is drawn off to room temperature.
Further, in the whipping step, its mixing speed be 20～30HZ, mixing time be 30～60min, target For the uniform non-block phenomenon of material after stirring, dry and wet degree is preferred with adhesion.
Compared with prior art, a kind of beneficial effect of the preparation technology of very-high performance bamboo charcoal column charcoal of the invention is： The bamboo matter column-shaped active carbon produced has that intensity height, high adsorption capacity, adsorption capacity are big, ash content is few, the rate of adsorption is fast, de- Attached speed is fast, appearance without obvious crackle, follow-up carbonization-activation product yield is high the features such as, the process, Industry Waste in water for industrial use Gas disposal, municipal tap water process, sanitary sewage disposal etc. have very good effect, especially for the VOC in waste gas, Dioxin etc. is with the excellent absorption property not available for conventional granulates charcoal.The invention of the product simultaneously is also solved and is currently used The defect of ature of coal column charcoal, the field of activated carbon is further expanded, and the shortcoming of ature of coal column charcoal is further improved, and is that water quality is net Change, wastewater treatment, exhaust-gas treatment etc. provide more excellent product.
【Specific embodiment】
Embodiment：
A kind of preparation technology of very-high performance bamboo charcoal column charcoal of the present embodiment, its step include：
S1) selected raw material：The bamboo matter carbonized material of high-quality is selected as raw material；
S2) grind：Bamboo matter carbonized material is ground using sealing sample pulverizer and obtain bamboo matter charing feed powder；
S3) sieve：Bamboo matter carbonized material after grinding is sieved through the screen cloth of 325 mesh, takes the bamboo matter below 325 mesh Charing feed powder is used as one of raw material；
S4) be milled batch mixing：Taking during a small amount of asphalt adds the following bamboo matter charing feed powder of 325 mesh is carried out at milling mixing It is (6～8) that reason obtains the ratio of the first mixture, the first mixture petrochina pitch and the following bamboo matter charing feed powder of 325 mesh：(2 ～4), mixing time is 30～60min, and temperature during batch mixing is 25～30 DEG C；
S5) stir：In the first mixture, add water to be stirred obtain the second mixture, in the second mixture, first The ratio of mixture and water is (8～10)：(1～1.5), mixing speed be 20～30HZ, mixing time be 30～60min, mesh The uniform non-block phenomenon of material after stirring is designated as, dry and wet degree is preferred with adhesion；
S6) pre-extrusion：The second mixture after being stirred is put in mould, is applied pressure, is done pre-extrusion, under being One-step shaping is prepared；
S7) suppress extrusion molding：The second mixture after being stirred is put in mould and is pressed and squeezes Go out segmentation, 150～250KPa of pressure requirements, discharging speed are controlled in 20～40cm/min, carried out at segmentation by per section of 2～4cm Reason, obtains column charcoal, and column charcoal can be obtained spherical carbon in Granulation Equipments；Its discharging speed can be according to required with section length Particle diameter is adjusted accordingly；
S8) segmentation drying：Including prebake with dry two steps completely；Column charcoal is heated at a temperature of 40～50 DEG C After prebake 30min, then dried at a temperature of 60～80 DEG C；
S9) carbonize：The material dried is put in retort and is carbonized, its carbonization temperature is 280～600 DEG C, charcoal The change time is 1.5～2h, gradually reduces after column charcoal and is drawn off to room temperature；
S10) gradient type activation：The material for having carbonized is put in activation furnace and is activated, specific temperature be 750～ 850 DEG C activation 1～2h, after be warming up to 850～950 DEG C activation 1～3h, that is, obtain bamboo charcoal column-shaped active carbon.
2～4cm carries out segment processing to compressing bamboo charcoal column charcoal on request, and the material after segmentation needs to be placed on spy In fixed drying appliance；Meanwhile, in order to prevent adhesion, the bamboo matter carbonized material of below 325 a small amount of mesh can be added as separation Agent.
For the beneficial effect of definitely the present embodiment, by the preparation process of the present embodiment and preparation of the prior art Method is analyzed, and its analysis result is as shown in table 1.
The preparation process comparative analysis of 1 the present embodiment of table and prior art bamboo matter column-shaped active carbon
The preparation technology of the present embodiment very-high performance bamboo charcoal column charcoal is in view of the current deficiency of ature of coal column charcoal, with reference to bamboo The advantage of matter carbonized material, both are soft well, produce a kind of product with both common premium properties.This reality Apply a technique be on the basis of ature of coal column charcoal, using new raw material, and the proportioning in formed product, production prepare work Improved in skill, the bamboo matter column-shaped active carbon finally produced has very excellent performance, intensity is high, while bamboo matter Column-shaped active carbon is also less likely to occur the phenomenon of dry linting, can solve the problem that many problems, for example in the application of VOCs：The powder for dropping out , excessively the problems such as equipment surface forms bonding, cleaning processing cost and significantly raises, we realize new product for network blocking, powder The advantage of ature of coal column charcoal and bamboo matter column-shaped active carbon is combined.
The beneficial effect of the preparation technology of the present embodiment very-high performance bamboo charcoal column charcoal is：The bamboo matter column produced Activated carbon has that intensity height, high adsorption capacity, adsorption capacity are big, ash content is few, the rate of adsorption is fast, desorption rate is fast, appearance is without bright The features such as aobvious crackle, high follow-up carbonization-activation product yield, process, the industrial waste gas process in water for industrial use, municipal tap water Process, sanitary sewage disposal etc. have very good effect, have especially for the VOC in waste gas, dioxin etc. conventional Excellent absorption property not available for particle charcoal.The invention of the product simultaneously is also solved and currently uses lacking for ature of coal column charcoal Fall into, the field of activated carbon is further expanded, the shortcoming of ature of coal column charcoal is further improved, be purification of water quality, wastewater treatment, give up Gas disposal etc. provides more excellent product.
Above-described is only some embodiments of the present invention.For the person of ordinary skill of the art, not On the premise of departing from the invention design, some deformations and improvement can also be made, these belong to the protection model of the present invention Enclose.

Claims (7)

1. a kind of preparation technology of very-high performance bamboo charcoal column charcoal, it is characterised in that：Comprise the following steps,
S1) selected raw material：The bamboo matter carbonized material of high-quality is selected as raw material；
S2) grind, sieve：Bamboo matter carbonized material is ground, the bamboo matter carbonized material after grinding was carried out through the screen cloth of 325 mesh Sieve, takes the bamboo matter carbonized material below 325 mesh as one of raw material；
S3) be milled batch mixing：Milling mixed processing is carried out in taking a small amount of following bamboo matter charing feed powder of asphalt 325 mesh of addition to obtain To the first mixture；
S4) stir：In first mixture, add water to be stirred obtain the second mixture；
S5) pre-extrusion：Second mixture is put in mould, is applied pressure, is done pre-extrusion, be that next one-step forming does Prepare；
S6) suppress extrusion molding：It is pressed in mould and extrudes segmentation, obtains column charcoal；
S7) segmentation drying：Including prebake with dry completely；
S8) carbonize；
S9) gradient type activation：The material for having carbonized is put in activation furnace and is activated, temperature be 750～850 DEG C activation 1～ 2h, after be warming up to 850～950 DEG C activation 1～3h, that is, obtain bamboo charcoal column-shaped active carbon.
2. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 1, it is characterised in that：First mixture The ratio of petrochina pitch and the following bamboo matter charing feed powder of 325 mesh is (6～8)：(2～4).
3. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 1, it is characterised in that：Second mixture Described in the first mixture and water ratio be (8～10)：(1～1.5).
4. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 1, it is characterised in that：The pre-bake step In, drying temperature is 40～50 DEG C, and the duration is 30min.
5. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 4, it is characterised in that：The step of drying completely In rapid, drying temperature is 60～80 DEG C.
6. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 1, it is characterised in that：The carbonization In, its carbonization temperature is 280～600 DEG C, and carbonization time is 1.5～2h, and the column charcoal after carbonizing gradually reduced to room temperature It is drawn off.
7. the preparation technology of very-high performance bamboo charcoal column charcoal as claimed in claim 1, it is characterised in that：The whipping step In, its mixing speed is 20～30HZ, and mixing time is 30～60min, and target is the uniform non-block phenomenon of material after stirring, Dry and wet degree is preferred with adhesion.
CN201611031500.7A 2016-11-18 2016-11-18 Preparation technology of bamboo columnar carbon with ultrahigh performance Pending CN106512938A (en)

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107555431A (en) * 2017-09-13 2018-01-09 浙江佶竹生物科技有限公司 A kind of bamboo matter column-shaped active carbon and its preparation method and application
CN108910875A (en) * 2018-07-19 2018-11-30 紫云自治县紫香源农林科技有限责任公司 A kind of production method of bamboo bamboo charcoal
CN109289434A (en) * 2018-10-24 2019-02-01 山西新华化工有限责任公司 Nitrogen dioxide special purification material preparation method
CN109603313A (en) * 2018-12-14 2019-04-12 核工业理化工程研究院 Handle the preparation method and absorption filter element of radioactive liquid waste absorption filter element
CN110749634A (en) * 2019-10-21 2020-02-04 遵义师范学院 NiO/BC composite material and preparation method thereof
CN110749633A (en) * 2019-10-21 2020-02-04 遵义师范学院 Method for modifying electrode by NiO/BC composite material and application thereof
CN110841596A (en) * 2019-12-02 2020-02-28 万安县朝荣毛竹林场 Preparation process of bamboo charcoal
CN115304064A (en) * 2019-07-10 2022-11-08 南京安捷特环保科技有限公司 Production method and application of physical activated carbon
CN115465861A (en) * 2022-09-29 2022-12-13 江西李氏烤鲜竹沥药业有限公司 Method for preparing activated carbon by continuous carbonization
CN115722192A (en) * 2022-11-25 2023-03-03 煤炭科学技术研究院有限公司 Method for preparing composite activated carbon from multi-source carbonaceous raw material

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Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107555431A (en) * 2017-09-13 2018-01-09 浙江佶竹生物科技有限公司 A kind of bamboo matter column-shaped active carbon and its preparation method and application
CN107555431B (en) * 2017-09-13 2019-09-13 李文贵 A kind of bamboo matter column-shaped active carbon and its preparation method and application
CN108910875A (en) * 2018-07-19 2018-11-30 紫云自治县紫香源农林科技有限责任公司 A kind of production method of bamboo bamboo charcoal
CN109289434A (en) * 2018-10-24 2019-02-01 山西新华化工有限责任公司 Nitrogen dioxide special purification material preparation method
CN109603313A (en) * 2018-12-14 2019-04-12 核工业理化工程研究院 Handle the preparation method and absorption filter element of radioactive liquid waste absorption filter element
CN109603313B (en) * 2018-12-14 2021-05-07 核工业理化工程研究院 Preparation method of adsorption filter element for treating radioactive waste liquid and adsorption filter element
CN115304064A (en) * 2019-07-10 2022-11-08 南京安捷特环保科技有限公司 Production method and application of physical activated carbon
CN110749634A (en) * 2019-10-21 2020-02-04 遵义师范学院 NiO/BC composite material and preparation method thereof
CN110749633A (en) * 2019-10-21 2020-02-04 遵义师范学院 Method for modifying electrode by NiO/BC composite material and application thereof
CN110841596A (en) * 2019-12-02 2020-02-28 万安县朝荣毛竹林场 Preparation process of bamboo charcoal
CN115465861A (en) * 2022-09-29 2022-12-13 江西李氏烤鲜竹沥药业有限公司 Method for preparing activated carbon by continuous carbonization
CN115722192A (en) * 2022-11-25 2023-03-03 煤炭科学技术研究院有限公司 Method for preparing composite activated carbon from multi-source carbonaceous raw material

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