CN88101457A - The corn cob furfural dregs is made granulated active carbon - Google Patents
The corn cob furfural dregs is made granulated active carbon Download PDFInfo
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- CN88101457A CN88101457A CN 88101457 CN88101457A CN88101457A CN 88101457 A CN88101457 A CN 88101457A CN 88101457 CN88101457 CN 88101457 CN 88101457 A CN88101457 A CN 88101457A CN 88101457 A CN88101457 A CN 88101457A
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- active carbon
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Abstract
The invention discloses and a kind of corn cob is extracted the method that remaining waste residue behind the furfural is made granulated active carbon; its technical process is with close with high-quality coal production granulated active carbon; but when charing, must grasp temperature and add a certain amount of medium; during activation except that temperature is grasped in strictness; also need periodically to feed water vapor according to temperature variation.
The present invention makes refuse become precious, saves a large amount of high-quality coals, reduces and pollutes, and reduces the cost of producing granulated active carbon greatly, and the equipment of making the raw material production seed activity in order to coal can put into production.
Description
The corn cob furfural dregs is made granulated active carbon, belongs to the utilization of waste material to the corn cob furfural dregs.
After making raw material and extracted furfural with corn cob in the past, its bits refuse can not utilize again.Because acid content is too much, makes fertilizer farm crop are also produced murder by poisoning.Therefore do the producer of raw material production furfural with corn cob, the processing of bits is quite felt thorny, both accounted for the place, polluted environment again, outwards roping need expend a large amount of trucking costs again.
Produced granulated active carbon is that high-quality anthracite is made raw material in the past, through fragmentation, adds coal tar and makes tackiness agent, whisks mixing, is squeezed into cylindrical particle, and charing, activation, screening form finished product.Though this method can be produced qualified granulated active carbon, consume a large amount of fat coals, the cost price height.And it is serious to atmospheric pollution to adopt coal tar to make tackiness agent.
Task of the present invention is: a kind of method is provided, replaces fat coal with corn cob furfural refuse, produce granulated active carbon.
Task of the present invention is achieved in that after the selected screening of corn cob furfural dregs, adding a certain amount of water and tackiness agent mixes, mix after extrusion machine is squeezed into strip, pack into and carry out charing in the charing, adding a certain amount of medium after the charing packs into and activates in the smoldering stove, activation will periodically feed water vapor therebetween, and final sizing promptly becomes finished product.
Concrete grammar of the present invention will be provided by the following examples.
Sieve selected: contain impurity and more water in the corn cob furfural dregs, the slag particle size is irregular.Therefore at first the furfural dregs airing should be pulverized again and sieve selectedly, isolate greater than 10 purpose furfural dregs and other impurity.The bits water content of sieving after selected should be between 35～40%, and ash content is below 8%, and is few more good more.Mix: the furfural dregs that sieve after selected wants thorough mixing to homogenize, and the water content according to mensuration determines whether to add water and amount of water again, and water content is guaranteed between 35～40%, also should add carboxymethyl cellulose or spent pulping liquor 2～5% during mixing.Pressure stretch: the furfural dregs that mixes pushes slivering on screw extrusion press, according to the kind difference, can select the pressing mold in different apertures for use, extrudes the sketching charcoal of corresponding rugosity, and it is air-dry to extrude the back.Charing: with the charing in the charring furnace stove of packing into of air dried sketching charcoal, material is moved to the high-temperature zone by cold zone in stove, 320～350 ℃ of the temperature of mixing section, 200～230 ℃ of middle part temperature, the rotating speed of 120～140 ℃ of charring furnaces of afterbody temperature is 2～3 rev/mins, carbonization time one minute.The water as medium that will add weight of material 5～15% after the charing.Activation: stewing burner activation is sent in the sketching charcoal tinning after the charing.Activation temperature is 800～850 ℃, soak time 25～36 hours, in the reactivation process, periodically feed water vapor: feed water vapor when temperature in the activation furnace rises to 850 ℃, later temperature descends, when reducing to 800 ℃, stop logical vapour, temperature rises in the later activation furnace, feeds water vapor when rising to 850 ℃ again, move in circles later on, until coming out of the stove.Screening: the sketching charcoal after the activation is rolled in rolling machine, grind off surperficial ash content, be the finished particle gac after sieving.
Claims (1)
1, the corn cob furfural dregs is made granulated active carbon, through broken pure, adds tackiness agent, is squeezed into cylindrical particle, charing, activation and makes, and it is characterized in that:
Charring furnace temperature mixing section is 320～350 ℃ when a, charing, and the middle part is 200～230 ℃, and 120～140 ℃ of afterbodys, charring furnace rotating speed are 2～3 rev/mins, charing one minute, the water as medium of adding weight of material 5～15% after the charing.
The temperature of b, activation furnace is 800～850 ℃, and soak time 25～36 hours periodically feeds water vapor in the reactivation process, feed during 850 ℃ of stove Nei Wenduda, stop vapour when reducing to 800 ℃, logical again vapour when stopping that furnace temperature is raised to 850 ℃ behind the vapour, stop vapour when reducing to 800 ℃, move in circles, until coming out of the stove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101457 CN88101457A (en) | 1988-03-17 | 1988-03-17 | The corn cob furfural dregs is made granulated active carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88101457 CN88101457A (en) | 1988-03-17 | 1988-03-17 | The corn cob furfural dregs is made granulated active carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN88101457A true CN88101457A (en) | 1988-10-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88101457 Pending CN88101457A (en) | 1988-03-17 | 1988-03-17 | The corn cob furfural dregs is made granulated active carbon |
Country Status (1)
| Country | Link |
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| CN (1) | CN88101457A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424010C (en) * | 2006-07-06 | 2008-10-08 | 康锡军 | Process for preparing bamboo-based activated carbon and dedicated device therefor |
| CN102020274A (en) * | 2010-12-14 | 2011-04-20 | 卞奎友 | New process for producing straw active carbon once by utilizing physical activation method |
| CN101837973B (en) * | 2009-03-20 | 2011-12-28 | 山东福田药业有限公司 | Preparation method of activated carbon by utilizing corncob hydrolysis residue |
| CN103566882A (en) * | 2013-09-29 | 2014-02-12 | 安徽金叶炭素科技有限公司 | High-adsorptivity modified activated carbon and preparation method thereof |
| CN106061296A (en) * | 2013-12-30 | 2016-10-26 | 菲利普莫里斯生产公司 | Activated carbon for smoking articles |
| CN110655169A (en) * | 2019-10-17 | 2020-01-07 | 威海中远造船科技有限公司 | Sewage treatment method for enhancing Fenton reaction by adopting activated carbon |
-
1988
- 1988-03-17 CN CN 88101457 patent/CN88101457A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100424010C (en) * | 2006-07-06 | 2008-10-08 | 康锡军 | Process for preparing bamboo-based activated carbon and dedicated device therefor |
| CN101837973B (en) * | 2009-03-20 | 2011-12-28 | 山东福田药业有限公司 | Preparation method of activated carbon by utilizing corncob hydrolysis residue |
| CN102020274A (en) * | 2010-12-14 | 2011-04-20 | 卞奎友 | New process for producing straw active carbon once by utilizing physical activation method |
| CN103566882A (en) * | 2013-09-29 | 2014-02-12 | 安徽金叶炭素科技有限公司 | High-adsorptivity modified activated carbon and preparation method thereof |
| CN103566882B (en) * | 2013-09-29 | 2016-03-30 | 安徽金叶炭素科技有限公司 | A kind of high adsorption modified activated carbon and preparation method thereof |
| CN106061296A (en) * | 2013-12-30 | 2016-10-26 | 菲利普莫里斯生产公司 | Activated carbon for smoking articles |
| CN106061296B (en) * | 2013-12-30 | 2019-12-17 | 菲利普莫里斯生产公司 | Activated carbon for smoking articles |
| CN110655169A (en) * | 2019-10-17 | 2020-01-07 | 威海中远造船科技有限公司 | Sewage treatment method for enhancing Fenton reaction by adopting activated carbon |
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