CN102583322B - Active brown coal and preparation method thereof - Google Patents
Active brown coal and preparation method thereof Download PDFInfo
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- CN102583322B CN102583322B CN2012100584812A CN201210058481A CN102583322B CN 102583322 B CN102583322 B CN 102583322B CN 2012100584812 A CN2012100584812 A CN 2012100584812A CN 201210058481 A CN201210058481 A CN 201210058481A CN 102583322 B CN102583322 B CN 102583322B
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Abstract
The invention discloses active brown coal and a preparation method thereof. Technical indicators of the active brown coal are as follows: an iodine value ranges from 300mg/g to 600mg/g; stacking density ranges from 450kg/m<3> and 700kg/m<3>; a phenol value is more than 100%; a pH value ranges from 6 to 9; a macropore ratio ranges from 80% to 90%; and granularity Dmax is less than 1mm. The preparation method comprises the following steps that: raw coal of the brown coal is crushed and screened, and particles after crushing and screening are subjected to integration processing of carbonization, oxidization and activation, then cooled and finally sealed and packaged. The active brown coal preparation method is simple; the prepared active brown coal has the advantages of being stable in property, developed in macropore structure, applicable to adhesion, auxiliary vitality and growth of microorganisms, rich in surface chemical functional group, high in catalytic activity and low in cost; and the prepared active brown coal can be adopted as a substitute of the conventional active carbon to be used in the sewage treatment field and solves the problem that the conventional active carbon is poor in bioactivity and high in cost when being used in the sewage treatment.
Description
Technical field
The present invention relates to reactive brown coal technology field, be specifically related to a kind of reactive brown coal and preparation method thereof.
Background technology
Water is Source of life, guarantees the water source quality, is guarantee body health of people safety basic, yet, in recent decades, being accompanied by the stage that China's economy is stepped into rapid growth, environmental pollution is serious day by day, and quality problem becomes increasingly conspicuous.How the purifying treatment of carrying out sewage of economical and efficient is a difficult problem.
At present, a large amount of employing gacs are arranged as the sewage treatment process of carrier both at home and abroad, but the price of gac more expensive (conventional gac average price is at 5000 yuan/ton), processing cost is very big, be difficult to apply on a large scale, therefore seek reliable and stablely, abundant cheap adsorption cleaning is the emphasis of studying with microbe carrier.
There is abundant lignite resource in China, and explored brown coal retained reserve reaches 1,300 hundred million t, accounts for about 13% of national coal total reserves.Develop a kind of system is simple and reliable, with low cost, can satisfy the large-scale commercial production requirement activity and coal production technology, and utilize this explained hereafter to go out can be as the cheap reactive brown coal of gac substitute, be used for sewage disposal, will have great social significance and economic interests.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the object of the present invention is to provide a kind of sewage disposal reactive brown coal and preparation method thereof, reactive brown coal preparation method of the present invention is simple, the reactive brown coal of preparation has the catalytic activity height, characteristics with low cost, it is poor for the sewage disposal biological activity to have solved existing gac, the technological difficulties that cost is high.
To achieve these goals, the present invention is by the following technical solutions:
A kind of reactive brown coal, its technical indicator is: iodine number: 300-600mg/g, tap density: 450-700kg/m
3, phenol value＞100%, pH value: 6-9, macropore ratio: 80-90%, granularity: D
Max＜1mm.
A kind of preparation method of reactive brown coal: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: with brown coal raw coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 400～800 ℃, fluidising air velocity in the control reactor is 2～8m/s, treatment time is 5～10min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to below 50 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: cooled finished product is packed.
Described reactive brown coal is used for sewage treatment area, as sorbent material and microbic activity carrier.
The present invention compares with prior art has following advantage: reactive brown coal preparation method of the present invention is simple, it is stable that the reactive brown coal of preparation has proterties, the prosperity of macropore pore texture, be fit to the adhering to of microorganism, subsidiary engine and growth, surface chemistry functional group is abundant, the catalytic activity height, characteristics with low cost, can be used for sewage treatment area as the substitute of conventional gac, it is poor for the sewage disposal biological activity to solve existing gac, the technological difficulties that cost is high.
Description of drawings
Accompanying drawing is preparation technology's schema of reactive brown coal of the present invention.
Embodiment
The present invention will be described in more detail below in conjunction with the drawings and specific embodiments.
Embodiment 1:
It is about 8% that raw material is selected ash content for use, and moisture is 35% bundle grant Nore brown coal, and the preparation method of reactive brown coal comprises the steps: as shown in drawings
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 400 ℃, fluidizing velocity is 2m/s, treatment time is 10min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 50 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
This embodiment reactive brown coal, its technical indicator is: iodine number: 368mg/g, tap density: 502kg/m
3, phenol value＞100%, pH value: 7.0, the macropore ratio: 81.3%, granularity: D
Max＜1mm.
Embodiment 2:
It is about 12% that raw material is selected ash content for use, and moisture is 40% Yi Min brown coal, and the preparation method of reactive brown coal comprises the steps: as shown in drawings
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 550 ℃, fluidizing velocity is 3.5m/s, treatment time is 8min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 40 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
This embodiment reactive brown coal, its technical indicator is: iodine number: 468mg/g, tap density: 602kg/m
3, phenol value＞100%, pH value: 7.5, the macropore ratio: 83.2%, granularity: D
Max＜1mm.
Embodiment 3:
It is about 8% that raw material is selected ash content for use, and moisture is 31% Bao Rixile brown coal, and the preparation method of reactive brown coal comprises the steps: as shown in drawings
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 700 ℃, fluidizing velocity is 8m/s, treatment time is 6min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 35 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
This embodiment reactive brown coal, its technical indicator is: iodine number: 548mg/g, tap density: 658kg/m
3, phenol value＞100%, pH value: 7.5, the macropore ratio: 84.3%, granularity: D
Max＜1mm.
Embodiment 4:
It is about 10% that raw material is selected ash content for use, and moisture is Siklingelei brown coal of 35%, and the preparation method of reactive brown coal comprises the steps: as shown in drawings
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 800 ℃, fluidizing velocity is 6.5m/s, treatment time is 5min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 30 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
This embodiment reactive brown coal, its technical indicator is: iodine number: 586mg/g, tap density: 637kg/m
3, phenol value＞100%, pH value: 7.6, the macropore ratio: 84.5%, granularity: D
Max＜1mm.
Claims (10)
1. reactive brown coal, it is characterized in that: the technical indicator of described reactive brown coal is: iodine number: 300-600mg/g, tap density: 450-700kg/m
3, the phenol value〉and 100%, pH value: 6-9, macropore ratio: 80-90%, granularity: D
Max＜1mm; Its preparation method comprises the steps:
Step 1: the fragmentation of brown coal raw coal and screening: with brown coal raw coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 400～800 ℃, fluidising air velocity in the control reactor is 2～8m/s, treatment time is 5～10min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to below 50 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: cooled finished product is packed.
2. reactive brown coal according to claim 1, it is characterized in that: its technical indicator is: iodine number: 368mg/g, tap density: 502kg/m
3, the phenol value〉and 100%, pH value: 7.0, the macropore ratio: 81.3%, granularity: D
Max＜1mm.
3. reactive brown coal according to claim 1, it is characterized in that: its technical indicator is: iodine number: 468mg/g, tap density: 602kg/m
3, the phenol value〉and 100%, pH value: 7.5, the macropore ratio: 83.2%, granularity: D
Max＜1mm.
4. reactive brown coal according to claim 1, it is characterized in that: its technical indicator is: iodine number: 548mg/g, tap density: 658kg/m
3, the phenol value〉and 100%, pH value: 7.5, the macropore ratio: 84.3%, granularity: D
Max＜1mm.
5. the preparation method of the described reactive brown coal of claim 1 is characterized in that: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: with brown coal raw coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 400～800 ℃, fluidising air velocity in the control reactor is 2～8m/s, treatment time is 5～10min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to below 50 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: cooled finished product is packed.
6. according to the preparation method of the described reactive brown coal of claim 5, it is characterized in that: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 400 ℃, fluidizing velocity is 2m/s, treatment time is 10min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 50 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
7. according to the preparation method of the described reactive brown coal of claim 5, it is characterized in that: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 550 ℃, fluidizing velocity is 3.5m/s, treatment time is 8min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 40 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
8. according to the preparation method of the described reactive brown coal of claim 5, it is characterized in that: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 700 ℃, fluidizing velocity is 8m/s, treatment time is 6min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 35 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
9. according to the preparation method of the described reactive brown coal of claim 5, it is characterized in that: comprise the steps:
Step 1: the fragmentation of brown coal raw coal and screening: will prick grant Nore brown coal crushing and screening to the solid with wide range particle of diameter less than 50mm;
Step 2: charing, oxidation, activation integral processing: the particle behind the crushing and screening sent under the reducing atmosphere condition, carry out charing, oxidation, activation integral processing in the integrated upgrading reactor, temperature in the integrated upgrading reactor is 800 ℃, fluidizing velocity is 6.5m/s, treatment time is 5min, obtains finished product;
Step 3: cool: the finished product that comes out in the integrated upgrading reactor of step 2 is cooled to 30 ℃ via finished product water cooler anoxybiotic;
Step 4: pack: adopt the woven bag of band liner to pack cooled finished product.
10. the described reactive brown coal of claim 1 is used for sewage treatment area, it is characterized in that: as sorbent material and microbic activity carrier.
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| CN2012100584812A CN102583322B (en) | 2012-03-07 | 2012-03-07 | Active brown coal and preparation method thereof |
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| CN2012100584812A CN102583322B (en) | 2012-03-07 | 2012-03-07 | Active brown coal and preparation method thereof |
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| CN106635025A (en) * | 2016-12-30 | 2017-05-10 | 中国华能集团清洁能源技术研究院有限公司 | Active lignite for soil improvement and preparation method thereof |
| CN107253709B (en) * | 2017-06-01 | 2019-10-29 | 大连理工大学 | A kind of preparation method and application of the derivative carbon material of lignite |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062709A (en) * | 1991-11-16 | 1992-07-15 | 西安矿业学院 | Active carbon made by woody brown coal |
| CN1086791A (en) * | 1992-11-10 | 1994-05-18 | 昆明煤炭科学研究所 | A kind of manufacture method of high quality brown coal base active carbon |
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2012
- 2012-03-07 CN CN2012100584812A patent/CN102583322B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1062709A (en) * | 1991-11-16 | 1992-07-15 | 西安矿业学院 | Active carbon made by woody brown coal |
| CN1086791A (en) * | 1992-11-10 | 1994-05-18 | 昆明煤炭科学研究所 | A kind of manufacture method of high quality brown coal base active carbon |
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