CN101028925A - Process for preparing super activated carbon - Google Patents
Process for preparing super activated carbon Download PDFInfo
- Publication number
- CN101028925A CN101028925A CN 200610056701 CN200610056701A CN101028925A CN 101028925 A CN101028925 A CN 101028925A CN 200610056701 CN200610056701 CN 200610056701 CN 200610056701 A CN200610056701 A CN 200610056701A CN 101028925 A CN101028925 A CN 101028925A
- Authority
- CN
- China
- Prior art keywords
- activated carbon
- super
- alkali metal
- oxyhydroxide
- hydroxide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims abstract description 44
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 150000008044 alkali metal hydroxides Chemical class 0.000 claims abstract description 12
- 238000005406 washing Methods 0.000 claims abstract description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims abstract description 8
- 239000003513 alkali Substances 0.000 claims abstract description 7
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims abstract description 6
- 239000002994 raw material Substances 0.000 claims abstract description 6
- 238000001035 drying Methods 0.000 claims abstract description 5
- 229910000019 calcium carbonate Inorganic materials 0.000 claims abstract description 4
- 239000000292 calcium oxide Substances 0.000 claims abstract description 4
- 238000003756 stirring Methods 0.000 claims abstract description 4
- 238000005260 corrosion Methods 0.000 claims abstract description 3
- 230000007797 corrosion Effects 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 230000004913 activation Effects 0.000 claims description 9
- 238000005516 engineering process Methods 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 239000012190 activator Substances 0.000 claims description 8
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 6
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 150000001875 compounds Chemical class 0.000 claims description 6
- 239000004571 lime Substances 0.000 claims description 6
- 239000003637 basic solution Substances 0.000 claims description 5
- 239000003610 charcoal Substances 0.000 claims description 5
- 239000003599 detergent Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 4
- 239000002002 slurry Substances 0.000 claims description 4
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 claims description 3
- 235000012255 calcium oxide Nutrition 0.000 claims description 3
- 239000003245 coal Substances 0.000 claims description 3
- 239000000571 coke Substances 0.000 claims description 3
- 230000008676 import Effects 0.000 claims description 3
- 238000001556 precipitation Methods 0.000 claims description 3
- -1 xylogen Substances 0.000 claims description 3
- 235000012204 lemonade/lime carbonate Nutrition 0.000 claims description 2
- 239000012299 nitrogen atmosphere Substances 0.000 claims description 2
- 239000011295 pitch Substances 0.000 claims description 2
- 239000011347 resin Substances 0.000 claims description 2
- 229920005989 resin Polymers 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 13
- 239000000047 product Substances 0.000 abstract description 5
- 239000000126 substance Substances 0.000 abstract description 4
- 239000002699 waste material Substances 0.000 abstract description 4
- 239000006227 byproduct Substances 0.000 abstract description 3
- 239000002244 precipitate Substances 0.000 abstract description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-M hydroxide Chemical compound [OH-] XLYOFNOQVPJJNP-UHFFFAOYSA-M 0.000 abstract 3
- 230000003213 activating effect Effects 0.000 abstract 2
- 229910000288 alkali metal carbonate Inorganic materials 0.000 abstract 1
- 150000008041 alkali metal carbonates Chemical class 0.000 abstract 1
- 239000000920 calcium hydroxide Substances 0.000 abstract 1
- 229910001861 calcium hydroxide Inorganic materials 0.000 abstract 1
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 abstract 1
- 239000003795 chemical substances by application Substances 0.000 abstract 1
- 239000012043 crude product Substances 0.000 abstract 1
- 230000001376 precipitating effect Effects 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000007921 spray Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 238000011031 large-scale manufacturing process Methods 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 1
- 230000000274 adsorptive effect Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052728 basic metal Inorganic materials 0.000 description 1
- 150000003818 basic metals Chemical class 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000012153 distilled water Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000005485 electric heating Methods 0.000 description 1
- 238000011049 filling Methods 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
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- Carbon And Carbon Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
A process for preparing super activated carbon by taking alkali metal hydroxide as an activating agent. Mixing alkali metal hydroxide and a carbon-containing raw material, activating in a totally-enclosed corrosion-resistant furnace chamber, and treating tail gas by a solution washing device to remove substances such as alkali steam, spray and the like; washing and drying the discharged crude product to obtain a finished product of activated carbon; adding calcium oxide or hydroxide into the alkaline waste liquid generated in the washing treatment process, fully stirring for reaction to convert alkali metal carbonate in the waste liquid into hydroxide and calcium carbonate, precipitating and separating, and recovering and recycling the hydroxide in clear liquid, wherein the precipitate calcium carbonate is washed to be used as a byproduct.
Description
Technical field
The present invention relates to a kind of preparation technology's method of super-activated carbon, belong to field of fine chemical.
Background technology
The specific surface area of super-activated carbon is at 2000m
2More than/the g, even can surpass 3000m
2/ g.Because have the specific surface area of superelevation, such activated carbon adsorptive capacity is extremely strong, now has been widely used in fields such as medicine, catalysis, gas delivery and storage, the energy, saline-water reclamation, metal recovery.
The preparation method of super-activated carbon has three classes basically: physical activation method, chemical activation method, physical-chemical associating activation method.Wherein commonly used is back two kinds of activation methods.Activator commonly used has the oxyhydroxide (CN01126708.9 of basic metal, alkaline-earth metal in the chemical activation method, CN00107740.6), inorganic salts and some acids, different (the coal conversion of super-activated carbon best performance that makes as activator with alkali metal hydroxide wherein, Vol.24, No.2,2001.4:29).
Use alkali metal hydroxide as activator, the alkali vapor of generation and the alkali spittle are big to the pollution of environment, and activation produces a large amount of alkaline waste liquors when finishing the gac washing; its main component is alkaline carbonate and oxyhydroxide, and the concentration high alkalinity is strong, and directly discharging also can serious environment pollution; the sour neutral method of general employing is handled (novel charcoal material; Vol.14, No.2,1999.6); acid consumption is big; the cost height, and cause the material waste, be not suitable for large-scale production.
Summary of the invention
The object of the present invention is to provide a kind of environment-friendly type technique flow process, being used for alkali metal hydroxides such as KOH, NaOH is that activator prepares super-activated carbon.
Technical scheme of the present invention is as follows: with the carbide that is crushed to 20～200 purpose refinery cokes, coal, pitch, xylogen, shell, rubber, resin or synthon is the carbon raw material, with alkali metal hydroxides such as KOH, NaOH is activator, alkali metal hydroxide and carbon raw material are by mass ratio 0.1～1: 1～10 mixes, in the corrosion-resistant furnace chamber of totally enclosed of nitrogen atmosphere protection, activate, temperature is controlled at 400～850 ℃, and tail gas imports discharges after the scrubber tower removal wherein contains materials such as the alkali vapor and the spittle; The thick product of coming out of the stove obtains the finished product gac through washing and drying; The basic solution that the detergent active charcoal produces, the oxide compound or the oxyhydroxide that add calcium, add-on should be greater than the amount of carbanion in the solution, through abundant stirring reaction, make the alkaline carbonate in the basic solution be converted into oxyhydroxide and lime carbonate, separate the alkali metal hydroxide that retains in after the precipitation of calcium carbonate in the clear liquid and reclaim again as activator, lime deposit through water washing as byproduct.
Alkali metal hydroxide refers to solid or the solution of KOH or NaOH.
The oxide compound of calcium or oxyhydroxide refer to unslaked lime, white lime or white lime slurry, aqua calcis.
The oxide compound of calcium or the consumption of oxyhydroxide should be greater than the amounts of carbanion in the alkaline detergent solution.
The pollution in the alkali activation preparation activated carbon process can be avoided and eliminate to this method, is applicable to the large-scale production of super-activated carbon.
Description of drawings
Fig. 1 prepares the super-activated carbon process flow sheet
Embodiment
Example 1
With the refinery coke is the carbon raw material, drying is 6 hours under 120 ℃, crushing and screening goes out 100～180 orders, with KOH is activator, alkali charcoal mass ratio is 5: 1, and activation furnace adopts air hermetic electric heating ejection plate kiln, carries out priming reaction under 800 ℃ temperature, kiln tail gas imports the material filling type scrubber tower and handles, and drip washing liquid is the hydrochloric acid soln of 1mol/L in the tower; The thick product of coming out of the stove is 7～8 through the distilled water repetitive scrubbing to pH, and drying obtains the finished product gac; CaO preparation white lime slurry with 0.6 times of KOH consumption adds slurry in the basic solution of detergent active charcoal generation, through abundant stirring reaction, makes the K in the washing soln
2CO
3Be converted into KOH and CaCO
3, through precipitate and separate, KOH retains in the clear liquid, concentrates the back and reclaims cycling and reutilization, CaCO
3Precipitation is extremely neutral as byproduct through washing.
Claims (6)
1, a kind of technology for preparing super-activated carbon; it is characterized in that with alkali metal hydroxide and carbon raw material by mass ratio 0.1～1: 1～10 mixes; in the corrosion-resistant furnace chamber of totally enclosed of nitrogen atmosphere protection, activate; activation temperature is 400～850 ℃; tail gas imports discharges after the scrubber tower removal wherein contains materials such as the alkali vapor and the spittle, and the thick product of coming out of the stove obtains the finished product gac through washing, drying.
2, super-activated carbon preparation technology according to claim 1, it is characterized in that the basic solution that the detergent active charcoal produces, the oxide compound or the oxyhydroxide that add calcium, through abundant stirring reaction, make the alkaline carbonate in the basic solution be converted into oxyhydroxide and lime carbonate, separate the alkali metal hydroxide that retains in the clear liquid after the precipitation of calcium carbonate and reclaim again as activator.
3, preparation super-activated carbon technology according to claim 1 is characterized in that alkali metal hydroxide is solid or the solution of KOH or NaOH.
4, preparation super-activated carbon technology according to claim 1 is characterized in that carbon raw material is the carbide that is crushed to 20～200 purpose refinery cokes, coal, pitch, xylogen, shell, rubber, resin or synthon.
5, preparation super-activated carbon technology according to claim 1 and 2 is characterized in that the oxide compound of calcium or oxyhydroxide refer to unslaked lime, white lime or white lime slurry and aqua calcis.
6, super-activated carbon preparation technology according to claim 1 and 2 is characterized in that the amount of the consumption of the oxide compound of calcium or oxyhydroxide greater than carbanion in the alkaline detergent solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610056701 CN101028925A (en) | 2006-03-03 | 2006-03-03 | Process for preparing super activated carbon |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610056701 CN101028925A (en) | 2006-03-03 | 2006-03-03 | Process for preparing super activated carbon |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101028925A true CN101028925A (en) | 2007-09-05 |
Family
ID=38714497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610056701 Pending CN101028925A (en) | 2006-03-03 | 2006-03-03 | Process for preparing super activated carbon |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101028925A (en) |
Cited By (29)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102153162A (en) * | 2011-04-29 | 2011-08-17 | 南京大学 | Application of KOH activated active carbon to removing antibiotics in water body through adsorption |
| CN102249227A (en) * | 2011-06-13 | 2011-11-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
| CN102248846A (en) * | 2011-05-10 | 2011-11-23 | 李义甫 | Method for preparing activated carbon block |
| CN102259855A (en) * | 2010-05-31 | 2011-11-30 | 国家林业局竹子研究开发中心 | Production method of environmentally-friendly super activated bamboo charcoal |
| CN102381697A (en) * | 2011-07-19 | 2012-03-21 | 中国人民解放军63971部队 | Method for preparing spherical carbon material |
| CN102583368A (en) * | 2012-01-19 | 2012-07-18 | 中国科学院山西煤炭化学研究所 | Method for producing active carbon by recycling waste alkali |
| CN101579536B (en) * | 2009-07-03 | 2012-07-25 | 遵化市春雨环保设备研究所 | Preparation method of an air freshener of activated carbon |
| CN102923702A (en) * | 2012-10-10 | 2013-02-13 | 上海大学 | Method for preparing active carbon from waste printed circuit board |
| CN103274402A (en) * | 2013-06-04 | 2013-09-04 | 成都银鑫新能源有限公司 | Method for preparing active carbon by using polyving akohol |
| CN101910370B (en) * | 2007-12-28 | 2013-09-25 | 格雷特波因特能源公司 | Catalytic gasification process with recovery of alkali metal from char |
| CN103641114A (en) * | 2013-12-17 | 2014-03-19 | 中国科学院新疆理化技术研究所 | Preparation method and application of petroleum coke based activated carbon with zinc oxide and aluminium oxide as templates |
| CN104576077A (en) * | 2014-12-31 | 2015-04-29 | 江苏江大环保科技开发有限公司 | Graphene/ lignin-based activated carbon preparation method and application in supercapacitors |
| CN104583120A (en) * | 2012-07-26 | 2015-04-29 | 关西热化学株式会社 | Activated carbon having large active surface area |
| CN104599861A (en) * | 2014-12-31 | 2015-05-06 | 江苏江大环保科技开发有限公司 | Preparation method of graphene/xylogen-based active carbon |
| CN105293491A (en) * | 2015-12-01 | 2016-02-03 | 浙江大学 | KOH solid activated active carbon preparation and forming method |
| CN105731451A (en) * | 2016-02-16 | 2016-07-06 | 大连理工大学 | Method for modifying petroleum-coke-based activated carbon and application of activated carbon |
| CN106744946A (en) * | 2016-11-28 | 2017-05-31 | 北京化工大学 | A kind of fruit shell carbon prepares the processing method of super-activated carbon technique and its activation waste liquid |
| CN107151017A (en) * | 2017-05-16 | 2017-09-12 | 浙江工业大学 | A kind of coal mass active carbon and preparation method and application |
| CN108622894A (en) * | 2017-03-20 | 2018-10-09 | 北京旭阳科技有限公司 | The method for preparing active carbon with high specific surface area using coke powder and/or quenching powder coal blending |
| CN109243857A (en) * | 2018-10-24 | 2019-01-18 | 长沙理工大学 | Preparation method of carbon mudstone and lignin composite activated carbon material for supercapacitor |
| CN109437198A (en) * | 2018-12-21 | 2019-03-08 | 滑县大潮林物产有限责任公司 | Supercapacitor carbon activated material cyclic utilization system |
| US10344231B1 (en) | 2018-10-26 | 2019-07-09 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization |
| US10435637B1 (en) | 2018-12-18 | 2019-10-08 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation |
| US10464872B1 (en) | 2018-07-31 | 2019-11-05 | Greatpoint Energy, Inc. | Catalytic gasification to produce methanol |
| US10618818B1 (en) | 2019-03-22 | 2020-04-14 | Sure Champion Investment Limited | Catalytic gasification to produce ammonia and urea |
| CN113120924A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Recovery method of alkali activator for preparing activated carbon |
| CN113181908A (en) * | 2021-05-10 | 2021-07-30 | 中国矿业大学 | Preparation of high-activity Ru/C catalyst and application of catalyst in aspect of catalytic hydrogenolysis |
| CN114275781A (en) * | 2020-11-18 | 2022-04-05 | 北京科技大学 | Method for preparing porous carbon material by regenerating strong base activated biomass raw material |
| CN115784227A (en) * | 2022-11-07 | 2023-03-14 | 河南农业大学 | Method for preparing porous carbon from agriculture and forestry biomass |
-
2006
- 2006-03-03 CN CN 200610056701 patent/CN101028925A/en active Pending
Cited By (37)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101910370B (en) * | 2007-12-28 | 2013-09-25 | 格雷特波因特能源公司 | Catalytic gasification process with recovery of alkali metal from char |
| CN101579536B (en) * | 2009-07-03 | 2012-07-25 | 遵化市春雨环保设备研究所 | Preparation method of an air freshener of activated carbon |
| CN102259855A (en) * | 2010-05-31 | 2011-11-30 | 国家林业局竹子研究开发中心 | Production method of environmentally-friendly super activated bamboo charcoal |
| CN102153162A (en) * | 2011-04-29 | 2011-08-17 | 南京大学 | Application of KOH activated active carbon to removing antibiotics in water body through adsorption |
| CN102153162B (en) * | 2011-04-29 | 2013-10-09 | 南京大学 | Application of KOH activated active carbon in removing antibiotics in water body through adsorption |
| CN102248846A (en) * | 2011-05-10 | 2011-11-23 | 李义甫 | Method for preparing activated carbon block |
| CN102249227A (en) * | 2011-06-13 | 2011-11-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
| CN102249227B (en) * | 2011-06-13 | 2013-01-23 | 福建省龙岩龙能粉煤灰综合利用有限公司 | System for preparing high-specific-surface active carbon |
| CN102381697A (en) * | 2011-07-19 | 2012-03-21 | 中国人民解放军63971部队 | Method for preparing spherical carbon material |
| CN102583368A (en) * | 2012-01-19 | 2012-07-18 | 中国科学院山西煤炭化学研究所 | Method for producing active carbon by recycling waste alkali |
| CN104583120A (en) * | 2012-07-26 | 2015-04-29 | 关西热化学株式会社 | Activated carbon having large active surface area |
| CN104583120B (en) * | 2012-07-26 | 2020-12-25 | 关西热化学株式会社 | Activated carbon with high active surface area |
| CN102923702A (en) * | 2012-10-10 | 2013-02-13 | 上海大学 | Method for preparing active carbon from waste printed circuit board |
| CN103274402B (en) * | 2013-06-04 | 2016-01-20 | 成都银鑫新能源有限公司 | Polyvinyl alcohol is utilized to prepare the method for gac |
| CN103274402A (en) * | 2013-06-04 | 2013-09-04 | 成都银鑫新能源有限公司 | Method for preparing active carbon by using polyving akohol |
| CN103641114A (en) * | 2013-12-17 | 2014-03-19 | 中国科学院新疆理化技术研究所 | Preparation method and application of petroleum coke based activated carbon with zinc oxide and aluminium oxide as templates |
| CN103641114B (en) * | 2013-12-17 | 2015-11-18 | 中国科学院新疆理化技术研究所 | The Synthesis and applications of the refinery coke matrix activated carbon being template with zinc oxide and aluminum oxide |
| CN104576077A (en) * | 2014-12-31 | 2015-04-29 | 江苏江大环保科技开发有限公司 | Graphene/ lignin-based activated carbon preparation method and application in supercapacitors |
| CN104599861A (en) * | 2014-12-31 | 2015-05-06 | 江苏江大环保科技开发有限公司 | Preparation method of graphene/xylogen-based active carbon |
| CN105293491A (en) * | 2015-12-01 | 2016-02-03 | 浙江大学 | KOH solid activated active carbon preparation and forming method |
| CN105293491B (en) * | 2015-12-01 | 2017-09-29 | 浙江大学 | A kind of activated carbon of KOH solids activation is prepared and forming method |
| CN105731451A (en) * | 2016-02-16 | 2016-07-06 | 大连理工大学 | Method for modifying petroleum-coke-based activated carbon and application of activated carbon |
| CN106744946B (en) * | 2016-11-28 | 2019-04-26 | 北京化工大学 | A kind of shell carbon prepares the processing method of super-active carbon technique and its activation waste liquid |
| CN106744946A (en) * | 2016-11-28 | 2017-05-31 | 北京化工大学 | A kind of fruit shell carbon prepares the processing method of super-activated carbon technique and its activation waste liquid |
| CN108622894A (en) * | 2017-03-20 | 2018-10-09 | 北京旭阳科技有限公司 | The method for preparing active carbon with high specific surface area using coke powder and/or quenching powder coal blending |
| CN107151017A (en) * | 2017-05-16 | 2017-09-12 | 浙江工业大学 | A kind of coal mass active carbon and preparation method and application |
| US10464872B1 (en) | 2018-07-31 | 2019-11-05 | Greatpoint Energy, Inc. | Catalytic gasification to produce methanol |
| CN109243857A (en) * | 2018-10-24 | 2019-01-18 | 长沙理工大学 | Preparation method of carbon mudstone and lignin composite activated carbon material for supercapacitor |
| US10344231B1 (en) | 2018-10-26 | 2019-07-09 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization |
| US10435637B1 (en) | 2018-12-18 | 2019-10-08 | Greatpoint Energy, Inc. | Hydromethanation of a carbonaceous feedstock with improved carbon utilization and power generation |
| CN109437198A (en) * | 2018-12-21 | 2019-03-08 | 滑县大潮林物产有限责任公司 | Supercapacitor carbon activated material cyclic utilization system |
| US10618818B1 (en) | 2019-03-22 | 2020-04-14 | Sure Champion Investment Limited | Catalytic gasification to produce ammonia and urea |
| CN113120924A (en) * | 2019-12-31 | 2021-07-16 | 中国石油化工股份有限公司 | Recovery method of alkali activator for preparing activated carbon |
| CN114275781A (en) * | 2020-11-18 | 2022-04-05 | 北京科技大学 | Method for preparing porous carbon material by regenerating strong base activated biomass raw material |
| CN114275781B (en) * | 2020-11-18 | 2023-11-24 | 北京科技大学 | Method for preparing porous carbon material by regenerating alkali activated biomass raw material |
| CN113181908A (en) * | 2021-05-10 | 2021-07-30 | 中国矿业大学 | Preparation of high-activity Ru/C catalyst and application of catalyst in aspect of catalytic hydrogenolysis |
| CN115784227A (en) * | 2022-11-07 | 2023-03-14 | 河南农业大学 | Method for preparing porous carbon from agriculture and forestry biomass |
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Application publication date: 20070905 |