CN1865133A - Preparation method of active carbon for absorbing gasoline steam - Google Patents
Preparation method of active carbon for absorbing gasoline steam Download PDFInfo
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- CN1865133A CN1865133A CN 200610045780 CN200610045780A CN1865133A CN 1865133 A CN1865133 A CN 1865133A CN 200610045780 CN200610045780 CN 200610045780 CN 200610045780 A CN200610045780 A CN 200610045780A CN 1865133 A CN1865133 A CN 1865133A
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Abstract
This invention relates to a method for producing activated char that can absorb petrol vapor. The procedures comprise: use waste woody plant as raw materials, dry the waste woody plant at 100-200Deg C for 2-4 hours, add H3PO4 to the dried material and soak at 100-150Deg C for 5-8 hours, put the soaked material into the rotary furnace to do the first activation at 450-600Deg C for 2-3 hours, wash with water and dry again, add NaOH to the activated material at the weight ratio of 1:1.0-3.0, and do the second activation at 700-800Deg C for 1-2 hours, wash the second activated material with hydrochloric acid, then wash with water until pH6-7, dry and disintegrate to the particle size needed. The activated char produced by this invention is characterized of reasonable distribution of specific surface and bore diameter, strong absorbing ability, repeated desorbing for use, low cost with only 1/2-1/3 of the import price, and can be used as the special-purpose activated char for absorbing petrol vapor.
Description
Technical field
The present invention relates to a kind of method for preparing absorbent charcoal special for adsorbing gasoline steam, particularly is the method for feedstock production absorbent charcoal special for adsorbing gasoline steam with the waste wood plant.
Background technology
Automobile becomes urban air first pollution source to the pollution of environment, and automobile is mainly derived from the evaporation of vehicle exhaust and fuel oil-gas to atmospheric pollution, and wherein tail gas pollution accounts for 70%, and the fuel evaporation thing pollutes and accounts for 30%.The U.S. just studies at the end of the sixties and use the charcoal absorption gasoline vapor on automobile, because this activated carbon technology content is higher, starting material made by timber and cost of manufacture is higher, and this special-purpose activated charcoal is domestic whole dependence on import at present, about 8～100,000 yuan/ton per ton of import price.
Summary of the invention
Task of the present invention is: employing discarded plant particularly Woody plant is a raw material, a kind of method for preparing absorbent charcoal special for adsorbing gasoline steam is provided, the gac that utilizes this method to produce, technical indicator all meets or exceeds external like product, and production cost only is 1/2～1/3 of an import price.
The present invention is to be raw material with the waste wood plant, and as hard fruit shells such as almond shell, peach-pit shells, drying, acidleach, activation treatment, pickling, washing obtain, and it is characterized in that:
A) the waste wood plant was dried 2～4 hours under 100～200 ℃ of temperature;
B) the oven dry material adds H
3PO
4Under 100～150 ℃ of temperature, soaked 5～8 hours;
C) will soak material adding converter and once activate 2～3 hours, washing oven dry again in 450～600 ℃;
D) will activate material and NaOH and carry out re-activation, material and NaOH be proportioning activation treatment 1～2 hour under 700～800 ℃ of temperature by weight=1: 1.0～3.0;
E) the re-activation material is added chlorohydric acid pickling, be washed to PH6～7 again, dry, be crushed to and need granularity.
It is the waste wood plant that the present invention selects raw material for use, as almond shell, peach-pit shell, jujube nuclear, nut-shell, hazel shell class hard fruit stone shell.Adopt twice activation, make gac aperture activation adjust to perfect condition, activation temperature is suitable to be controlled at 450～500 ℃, and the optimal temperature of re-activation is 700～750 ℃.Employing concentration is 30～36% chlorohydric acid pickling behind the re-activation, hydrochloric acid and weight ratio=6～10 that activate material: 100.Use H
3PO
4Soaking concentration be 30～36% (weight).
The gac that utilizes the present invention to prepare detects the technical indicator that all meets or exceeds the similar gasoline absorption activated carbon of import by following quality detecting index table.Specific surface area and pore size distribution are reasonable, and high adsorption capacity can be resolved use repeatedly, can be used as absorbent charcoal special for adsorbing gasoline steam.Particularly the energy is one of human current major issue that faces, and coal and petroleum resources are irreversibly consuming and reducing.The fixed charcoal is about 1,400 hundred million tons by photosynthesis of plant to have data to report the annual whole world, surpasses four times of the summations of annual recover petroleum and coal.Important feature of the present invention one of is to be exactly to utilize this renewable resources develop energy of discarded plant, and in rural area and side area, its resource is very abundant.The present invention had both rationally utilized discarded renewable resources, protected environment again, had created economic benefit.
The embodiment of the invention is expressed by tabular form:
| Raw material variety | Activation temperature ℃ | Re-activation temperature ℃ | Activation material: NaOH (weight) | Soak time hour | Gasoline vapor adsorption rate % | Gac specific surface area M 2/g | |
| Once | Secondary | ||||||
| The almond shell | 450 | 700 | 1∶3.0 | 2 | 1 | 95％ | 1100～1200 |
| The peach-pit shell | 500 | 700 | 1∶3.0 | 2 | 1 | 93％ | 1050～1100 |
| The almond shell | 500 | 750 | 1∶2.5 | 3 | 1.5 | 93％ | 1100～1150 |
| The hazel shell | 550 | 750 | 1∶2.0 | 3 | 1.5 | 87％ | 1000～1100 |
| Nut-shell | 550 | 800 | 1∶1 | 3 | 2 | 86％ | 1000～1080 |
| The almond shell | 600 | 800 | 1∶1.5 | 3 | 2 | 89％ | 1000～1100 |
Claims (4)
1, being used for the absorbing gasoline steam preparation method of active carbon, is to be raw material with the waste wood plant, and drying, acidleach, activation treatment, pickling, washing obtain, and it is characterized in that:
A) the waste wood plant was dried 2～4 hours under 100～200 ℃ of temperature;
B) the oven dry material adds H
3PO
4Under 100～150 ℃ of temperature, soaked 5～8 hours;
C) will soak material adding converter and once activate 2～3 hours, washing oven dry again in 450～600 ℃;
D) will activate material and NaOH and carry out re-activation, material and NaOH be proportioning activation treatment 1～2 hour under 700～800 ℃ of temperature by weight=1: 1.0～3.0;
E) the re-activation material is added chlorohydric acid pickling, be washed to PH6～7 again, dry, be crushed to and need granularity.
2, in accordance with the method for claim 1, it is characterized in that described waste wood plant is almond shell, peach-pit shell, jujube nuclear, nut-shell, hazel shell class hard fruit stone shell.
3, in accordance with the method for claim 1, be that feature is that an activatory optimal temperature is 450～500 ℃, the optimal temperature of re-activation is 700～750 ℃.
4, in accordance with the method for claim 1, it is characterized in that described pickling concentration is 30～36%, hydrochloric acid and weight ratio=6～10 that activate material: 100, use H
3PO
4Soaking concentration be 30～36%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100457807A CN100418879C (en) | 2006-01-24 | 2006-01-24 | Preparation method of active carbon for absorbing gasoline steam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100457807A CN100418879C (en) | 2006-01-24 | 2006-01-24 | Preparation method of active carbon for absorbing gasoline steam |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1865133A true CN1865133A (en) | 2006-11-22 |
| CN100418879C CN100418879C (en) | 2008-09-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100457807A Active CN100418879C (en) | 2006-01-24 | 2006-01-24 | Preparation method of active carbon for absorbing gasoline steam |
Country Status (1)
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| CN (1) | CN100418879C (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922337A (en) * | 2014-04-15 | 2014-07-16 | 浙江省林业科学研究院 | Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks |
| CN106145110A (en) * | 2016-07-05 | 2016-11-23 | 中国矿业大学 | A kind of activated carbon two step process for preparing activated and the application in ultracapacitor thereof |
| CN109231204A (en) * | 2018-09-29 | 2019-01-18 | 华中科技大学 | A kind of method of biomass substep activation preparation porous charcoal |
| CN110182802A (en) * | 2019-05-28 | 2019-08-30 | 华纺股份有限公司 | A kind of preparation method and application of the absorbent charcoal material based on discarded cotton fabric |
| CN111320173A (en) * | 2020-03-06 | 2020-06-23 | 浙江省林业科学研究院 | Preparation method of modified activated carbon material for capacitor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6033573A (en) * | 1997-05-29 | 2000-03-07 | The United States Of America As Represented By The Secretary Of Agriculture | Activated nutshell carbons from agricultural waste |
| CN1272242C (en) * | 2005-01-27 | 2006-08-30 | 西北农林科技大学 | Active carbon producing process with mixed stalk material |
| CN1292985C (en) * | 2005-02-28 | 2007-01-03 | 昆明理工大学 | Method for producing active carbon with high specific surface area |
-
2006
- 2006-01-24 CN CNB2006100457807A patent/CN100418879C/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103922337A (en) * | 2014-04-15 | 2014-07-16 | 浙江省林业科学研究院 | Method and equipment for preparing activated carbon carrier for storing natural gas from hard husks |
| CN106145110A (en) * | 2016-07-05 | 2016-11-23 | 中国矿业大学 | A kind of activated carbon two step process for preparing activated and the application in ultracapacitor thereof |
| CN109231204A (en) * | 2018-09-29 | 2019-01-18 | 华中科技大学 | A kind of method of biomass substep activation preparation porous charcoal |
| CN109231204B (en) * | 2018-09-29 | 2020-07-10 | 华中科技大学 | Method for preparing porous carbon by biomass step-by-step activation |
| CN110182802A (en) * | 2019-05-28 | 2019-08-30 | 华纺股份有限公司 | A kind of preparation method and application of the absorbent charcoal material based on discarded cotton fabric |
| CN111320173A (en) * | 2020-03-06 | 2020-06-23 | 浙江省林业科学研究院 | Preparation method of modified activated carbon material for capacitor |
| CN111320173B (en) * | 2020-03-06 | 2022-10-11 | 浙江省林业科学研究院 | Preparation method of modified activated carbon material for capacitor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100418879C (en) | 2008-09-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| ASS | Succession or assignment of patent right |
Owner name: CHAOYANG LIMITED ACTIVATED CARBON-HIGHLAND Free format text: FORMER OWNER: LI GUOJUN Effective date: 20070202 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20070202 Address after: 122000 Liaoning Chaoyang City Economic Development Zone Chaoyang Yuan Yuan Activated Carbon Co., Ltd. Applicant after: Chaoyang Senyuan Activated Carbon Co., Ltd. Address before: 122000 Chaoyang City Chaoyang Chaoyang yuan Liaoning Activated Carbon Co., Ltd. Applicant before: Li Guojun |
|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |