CN109894080A - The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses - Google Patents
The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses Download PDFInfo
- Publication number
- CN109894080A CN109894080A CN201910323263.9A CN201910323263A CN109894080A CN 109894080 A CN109894080 A CN 109894080A CN 201910323263 A CN201910323263 A CN 201910323263A CN 109894080 A CN109894080 A CN 109894080A
- Authority
- CN
- China
- Prior art keywords
- biological charcoal
- sulfur dioxide
- straw biological
- magnesium oxide
- dioxide adsorbent
- 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.)
- Pending
Links
Landscapes
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, make and use；The straw biological charcoal sulfur dioxide adsorbent of the supported magnesium oxide is by straw biological charcoal as matrix, and load has powdered magnesia on straw biological charcoal.Preparation method are as follows: the following steps are included: S1, by stalk washing, drying；S2, stalk is placed in carbonization-activation in tube furnace, cooling, grinding crosses 20 meshes and obtains straw biological charcoal；S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution；S4, straw biological charcoal is soaked in MgCl2In solution；S5, NaOH solution is added dropwise, water-bath, precipitating will dry after flushes sediment, filtering, obtain modification biological charcoal；S6, modification biological charcoal is put into tube furnace, after calcination, cooling to obtain the final product.Its application method are as follows: first moistened when in use with water, carry out sulfur dioxide adsorption operations in 25 DEG C of temperature later.
Description
Technical field
The present invention relates to the absorption of the straw biological charcoal sulfur dioxide of gas absorption field of purification more particularly to supported magnesium oxide
Agent makes and uses.
Background technique
China has a large capacity and a wide range as a large agricultural country, agricultural straw resource, stalk abundance, many kinds of, straw
Stalk gross annual output amount is single for rice straw, it is estimated that annual output is close to 300,000,000 tons up to 1,000,000,000 tons.But with regard to waste straw
For comprehensive utilization of resources status, there is part stalk for returning to the field, feed, the raw material of industry and life of farmers fuel etc., it is overall
Land use systems are still more rough, and compared with developed countries, there are also larger gaps in effective rate of utilization and popularity.How
It handles straw refuse at lower cost and diversification utilization mode is the key that handle all kinds of stalk resources from now on.
Global air pollution problem is serious, and sulfur dioxide (SO2) it is main gaseous pollutant in atmosphere.SO2It is nothing
Color gas, and there is penetrating odor, it is harmless when concentration is lower, but when reaching a certain concentration in air, Bian Huiwei
Coerce the health of the mankind.As the SO in air2For concentration value in 30ppm or more, most human bodies will appear uncomfortable symptom, long
Phase directly contacts the pollution gas SO2 in urban air, will increase the risk for suffering from lung cancer or even death.On the other hand, SO2's
A large amount of discharges are the principal elements to form acid rain.Sulfuric acid type pollution is still the main Types of China's acid rain, and acid rain can corrode people
Skin, to influence immune system；Acid rain will also result in water pollution, destroy the ecosystem；Acid rain can also corrode building,
To influence service life and cause potential collision hazard.
Energy resource structure of the China based on coal can not change in a short time, China's total energy consumption in 2015
Equivalent standard coal is 430,000 tons, and it is 64.0% that wherein coal, which accounts for total energy consumption,.The raw material aliment in thermal power plant is main
It is coal.With the continuous consumption of coal amount, so that the SO in the whole nation2Total emission volumn is in rising situation always.In recent years, with state
Family is to the attention of air contaminant treatment and implements many effective behaves, so that SO2Discharge amount decline it is obvious, but discharge total
It is still huge to measure data.With the appearance of national " ten, atmosphere " measure, the requirement to environmental improvement can be higher from now on.It pushes greatly
The use of wide clean energy resource, reduces the use of the expendables energy such as coal, should be main striving direction from now on；Meanwhile it is economical
Collaboration, high efficiency pollution control technology should also continue to introduce new, build advantage to improve good living environment.
Control SO2The approach of pollution can be divided into desulfurization before burning, desulfurization and three kinds of flue gas desulfurization in burning, flue gas desulfurization
(FGD) main method as desulfurization after burning, technology maturation, using more universal.Active carbon adsorption flue gas desulfurization belongs to
Dry method (or semidry method) flue gas desulfurization, in general, active carbon is to SO2Gas adsorption processes are physical adsorption and chemical adsorptions two
Person has it concurrently.Physical absorption typically occurs in the surface of active carbon, usual adsorbance very little.And chemisorption is the water in flue gas
SO under steam, oxygen concurrent conditions, in catalysis flue gas2Generate H2SO4Process, usual adsorbance is larger.With traditional desulfurization
Method is compared, have adsorbent stability is high, desulfuration efficiency is high, regeneration temperature is low, it is recyclable, do not generate secondary pollution etc.
Advantage meets the requirement of Green Chemistry, there is boundless prospect.But this method is as dry flue gas desulphurization technology,
The disadvantages of there are activated carbon capillaries to denude, operating cost is high, constrains the large-scale application of active carbon desulfurization.For overcome it is above-mentioned not
Foot, researcher constantly look for new solution.
Summary of the invention
Object of the present invention is in view of the above-mentioned problems, provide it is a kind of prepare it is simple, the better supported magnesium oxide of adsorption effect
Straw biological charcoal sulfur dioxide adsorbent makes and uses.
To achieve the goals above, the technical scheme is that
A kind of straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, the adsorbent is by straw biological charcoal as base
Body, load has powdered magnesia on straw biological charcoal.
The straw biological charcoal is made of stalk, and stalk is rice straw, wheat stalk or corn stover.
Further, the powdered magnesia is by MgCl2·6H2O is made of raw material.
A kind of preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, comprising the following steps:
S1, stalk is washed, drying；
S2, the stalk in step S1 is placed in tube furnace, is passed through by air and CO2The mixed gas of composition, with 15~
75~100min of carbonization-activation after the heating rate of 18 DEG C/min is warming up to 700 DEG C, cooling, grinding cross 20 meshes and obtain stalk
Charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution；
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution；
S5, in the obtained straw biological charcoal of step S4 and MgCl2It is added dropwise NaOH solution in the mixture of solution, 50~70 DEG C
Water-bath 1h by sediment distilled water flushing, dries after filtering completely after precipitating, obtains modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air of 0.2L/min
Flow, the heating rate of 15 DEG C/min, 1~2h of calcination at 350~500 DEG C, obtain the straw biological of supported magnesium oxide after cooling
Charcoal sulfur dioxide adsorbent.
Further, by air and CO in the step S22In the mixed gas of composition, air and CO2Volume ratio be 1:
4。
Further, MgCl made from the step S32MgCl in solution2Mass percent concentration be 20~25%.
Further, straw biological charcoal and MgCl in the step S42The dosage mass ratio of solution is 1:50.
Further, the NaOH concentration being added dropwise in the step S5 is 0.5mol/L, until stopping being added dropwise after pH=11.
A kind of application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, the sulfur dioxide adsorbent
It is first moistened when in use with water, carries out sulfur dioxide adsorption operations in 25 DEG C of temperature later.
Further, the water capacity after the sulfur dioxide adsorbent is moistened with water-wet is sulfur dioxide adsorbent sole mass
100%, the degree that water capacity, that is, sulfur dioxide adsorbent of sulfur dioxide adsorbent soaks.
Compared with prior art, the advantages and positive effects of the present invention are:
The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide provided by the invention makes full use of stalk and MgO special
Property, have the features such as preparation method is simple, adsorption process is easily controllable, desulfuration efficiency is high, low energy consumption, corrosivity is weak, it can be extensive
Apply the purified treatment of the SO2 gas in flue gas.Completion of the invention opens new way with openly for the application of the stalks such as straw
Diameter improves the value of the stalks such as straw, while being also adsorption cleaning SO2Gas provides a kind of new adsorbent, enriches
SO2The type of adsorbent, while also having widened the application range of MgO material；Therefore, no matter the present invention is theoretically or industrial
There is positive effect using upper, brings great contribution to air purification field.
Specific embodiment
Below in conjunction with the embodiment of the present invention, technical solution in the embodiment of the present invention is clearly and completely retouched
It states, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.Based on the present invention
In embodiment, every other implementation obtained by those of ordinary skill in the art without making creative efforts
Example, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
The straw biological charcoal sulfur dioxide adsorbent of embodiment 1, a kind of supported magnesium oxide, the adsorbent is by straw biological
Charcoal is as matrix, and load has powdered magnesia on straw biological charcoal；The straw biological charcoal is made of rice straw, described
Powdered magnesia is by MgCl2·6H2O is made of raw material.
A kind of preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, comprising the following steps:
S1, rice straw is washed, drying；
S2, the rice straw in step S1 is placed in tube furnace, is passed through by air and CO2Volume ratio is the mixing of 1:4
Gas, carbonization-activation 75min after being warming up to 700 DEG C with the heating rate of 15 DEG C/min, cooling, grinding cross 20 meshes and obtain straw
Stalk charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution, MgCl2MgCl in solution2Mass percent concentration
It is 20%.
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution, straw biological charcoal with
MgCl2The mass ratio of solution is 1:50.
S5, in the obtained straw biological charcoal of step S4 and MgCl2NaOH solution, NaOH concentration are added dropwise in the mixture of solution
For 0.5mol/L, until stopping being added dropwise after pH=11；Then carrying out water-bath 1h with 50 DEG C of water will precipitate completely after precipitating
Object distilled water flushing is dried after filtering, obtains modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air of 0.2L/min
Flow, the heating rate of 15 DEG C/min, calcination 1h at 350 DEG C, obtain the straw biological charcoal titanium dioxide of supported magnesium oxide after cooling
Sulfur absorbent.
A kind of application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, the sulfur dioxide adsorbent
It is first moistened when in use with water, the water capacity after moistening is the 50% of sulfur dioxide adsorbent sole mass, later 15
DEG C temperature in carry out sulfur dioxide adsorption operations.
The straw biological charcoal sulfur dioxide adsorbent of embodiment 2, a kind of supported magnesium oxide, the adsorbent is by straw biological
Charcoal is as matrix, and load has powdered magnesia on straw biological charcoal；The straw biological charcoal is made of wheat stalk, described
Powdered magnesia is by MgCl2·6H2O is made of raw material.
A kind of preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, comprising the following steps:
S1, wheat stalk is washed, drying；
S2, the wheat stalk in step S1 is placed in tube furnace, is passed through by air and CO2Volume ratio is the mixing of 1:4
Gas, carbonization-activation 80min after being warming up to 700 DEG C with the heating rate of 16 DEG C/min, cooling, grinding cross 20 meshes and obtain straw
Stalk charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution, MgCl2MgCl in solution2Mass percent concentration
It is 23%.
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution, straw biological charcoal with
MgCl2The mass ratio of solution is 1:50.
S5, in the obtained straw biological charcoal of step S4 and MgCl2NaOH solution, NaOH concentration are added dropwise in the mixture of solution
For 0.5mol/L, until stopping being added dropwise after pH=11；Then carrying out water-bath 1h with 60 DEG C of water will precipitate completely after precipitating
Object distilled water flushing is dried after filtering, obtains modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air of 0.2L/min
Flow, the heating rate of 15 DEG C/min, calcination 1.5h at 400 DEG C, obtain the straw biological charcoal dioxy of supported magnesium oxide after cooling
Change sulfur absorbent.
A kind of application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, the sulfur dioxide adsorbent
It is first moistened when in use with water, the water capacity after moistening is the 80% of sulfur dioxide adsorbent sole mass, later 25
DEG C temperature in carry out sulfur dioxide adsorption operations.
The straw biological charcoal sulfur dioxide adsorbent of embodiment 3, a kind of supported magnesium oxide, the adsorbent is by straw biological
Charcoal is as matrix, and load has powdered magnesia on straw biological charcoal；The straw biological charcoal is made of corn stover, described
Powdered magnesia is by MgCl2·6H2O is made of raw material.
A kind of preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, comprising the following steps:
S1, corn stover is washed, drying；
S2, the corn stover in step S1 is placed in tube furnace, is passed through by air and CO2Volume ratio is the mixing of 1:4
Gas, carbonization-activation 100min after being warming up to 700 DEG C with the heating rate of 18 DEG C/min, cooling, grinding cross 20 meshes and obtain straw
Stalk charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution, MgCl2MgCl in solution2Mass percent concentration
It is 25%.
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution, straw biological charcoal with
MgCl2The mass ratio of solution is 1:50.
S5, in the obtained straw biological charcoal of step S4 and MgCl2NaOH solution, NaOH concentration are added dropwise in the mixture of solution
For 0.5mol/L, until stopping being added dropwise after pH=11；Then carrying out water-bath 1h with 70 DEG C of water will precipitate completely after precipitating
Object distilled water flushing is dried after filtering, obtains modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air of 0.2L/min
Flow, the heating rate of 15 DEG C/min, calcination 2h at 500 DEG C, obtain the straw biological charcoal titanium dioxide of supported magnesium oxide after cooling
Sulfur absorbent.
A kind of application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, the sulfur dioxide adsorbent
It is first moistened when in use with water, the water capacity after moistening is the 100% of sulfur dioxide adsorbent sole mass, later 55
DEG C temperature in carry out sulfur dioxide adsorption operations.
In order to confirm the effect for adsorbing sulfur dioxide of product of the present invention, spy makes following experiment:
Experimentation:
S1, rice straw is washed, drying；
S2, the corn stover in step S1 is placed in tube furnace, is passed through by air and CO2Volume ratio is the mixing of 1:4
Gas, carbonization-activation 75min after being warming up to 700 DEG C with the heating rate of 15 DEG C/min, cooling, grinding cross 20 meshes and obtain straw
Stalk charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution, MgCl2MgCl in solution2Mass percent concentration
It is 20%.
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution, straw biological charcoal with
MgCl2The mass ratio of solution is 1:50.
S5, in the obtained straw biological charcoal of step S4 and MgCl2NaOH solution, NaOH concentration are added dropwise in the mixture of solution
For 0.5mol/L, until stopping being added dropwise after pH=11；Then carrying out water-bath 1h with 60 DEG C of water will precipitate completely after precipitating
Object distilled water flushing is dried after filtering, obtains modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air of 0.2L/min
Flow, the heating rate of 15 DEG C/min, calcination 1h at 350~500 DEG C, obtain the straw biological charcoal two of supported magnesium oxide after cooling
Aoxidize sulfur absorbent.
The calcination temperature prepared respectively in step s 6 is 350 DEG C, 400 DEG C, 450 DEG C, 500 DEG C, other reaction condition phases
The straw biological charcoal of four kinds of same supported magnesium oxides.
Experiment 1, the straw biological charcoal for weighing the supported magnesium oxide being prepared under the conditions of 1g calcination temperature is 350 DEG C, add
It is fitted into glass adsorption column (Φ 30mm × 300mm) after entering the water wetting of 1g, simulated flue gas (3000ppm, SO2/N2) with 0.4L/
For the flow of min by adsorption column, adsorption temp is 25 DEG C；When desulfurization degree drops to 20% or less, adsorption test terminates.
Experiment 2, the straw biological charcoal for weighing the supported magnesium oxide being prepared under the conditions of 1g calcination temperature is 400 DEG C, add
It is fitted into glass adsorption column (Φ 30mm × 300mm) after entering the water wetting of 1g, simulated flue gas (3000ppm, SO2/N2) with 0.4L/
For the flow of min by adsorption column, adsorption temp is 25 DEG C；When desulfurization degree drops to 20% or less, adsorption test terminates.
Experiment 3, the straw biological charcoal for weighing the supported magnesium oxide being prepared under the conditions of 1g calcination temperature is 450 DEG C, add
It is fitted into glass adsorption column (Φ 30mm × 300mm) after entering the water wetting of 1g, simulated flue gas (3000ppm, SO2/N2) with 0.4L/
For the flow of min by adsorption column, adsorption temp is 55 DEG C；When desulfurization degree drops to 20% or less, adsorption test terminates.
Experiment 4, the straw biological charcoal for weighing the supported magnesium oxide being prepared under the conditions of 1g calcination temperature is 500 DEG C, add
It is fitted into glass adsorption column (Φ 30mm × 300mm) after entering the water wetting of 1g, simulated flue gas (3000ppm, SO2/N2) with 0.4L/
For the flow of min by adsorption column, adsorption temp is 25 DEG C；When desulfurization degree drops to 20% or less, adsorption test terminates.
The experimental results are shown inthe following table:
As seen from the above table, the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide prepared by the present invention is in calcination temperature
It is 350 DEG C, water content 100%, adsorption effect is best when adsorption temp is 25 DEG C, with good SO2Adsorption capacity, it is complete
It can satisfy SO in purifying smoke entirely2Demand, bring great contribution to air cleaning operation.
Claims (10)
1. a kind of straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide, it is characterised in that: the adsorbent is given birth to by stalk
Object charcoal is as matrix, and load has powdered magnesia on straw biological charcoal.
2. the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as described in claim 1, it is characterised in that: the straw
Stalk charcoal is made of stalk, and stalk is rice straw, wheat stalk or corn stover.
3. the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as described in claim 1, it is characterised in that: the powder
Last shape magnesia is by MgCl2·6H2O is made of raw material.
4. a kind of preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as described in claim 1,
It is characterized in that: the following steps are included:
S1, stalk is washed, drying；
S2, the stalk in step S1 is placed in tube furnace, is passed through by air and CO2The mixed gas of composition, with 15~18 DEG C/
75~100min of carbonization-activation after the heating rate of min is warming up to 700 DEG C, cooling, grinding cross 20 meshes and obtain straw biological
Charcoal；
S3, by MgCl2·6H2O obtained MgCl soluble in water2Solution；
S4, the straw biological charcoal that step S2 is obtained is soaked in the MgCl that step S3 is obtained2In solution；
S5, in the obtained straw biological charcoal of step S4 and MgCl2NaOH solution, 50~70 DEG C of water-baths are added dropwise in the mixture of solution
1h is reacted by sediment distilled water flushing, to dry after filtering completely after precipitating, obtain modification biological charcoal；
S6, the modification biological charcoal that step S5 is obtained is contained with quartz boat, is put into tube furnace, in the air stream of 0.2L/min
Amount, the heating rate of 15 DEG C/min, 1~2h of calcination at 350~500 DEG C, obtain the straw biological charcoal of supported magnesium oxide after cooling
Sulfur dioxide adsorbent.
5. the preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as claimed in claim 4, feature
It is: by air and CO in the step S22In the mixed gas of composition, air and CO2Volume ratio be 1:4.
6. the preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as claimed in claim 4, feature
It is: MgCl made from the step S32MgCl in solution2Mass percent concentration be 20~25%.
7. the preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as claimed in claim 4, feature
It is: straw biological charcoal and MgCl in the step S42The dosage mass ratio of solution is 1:50.
8. the preparation method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as claimed in claim 4, feature
Be: the NaOH concentration being added dropwise in the step S5 is 0.5mol/L, until stopping being added dropwise after pH=11.
9. a kind of application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as described in claim 1,
Be characterized in that: the sulfur dioxide adsorbent is first moistened with water when in use, carries out dioxy in 25 DEG C of temperature later
Change sulphur adsorption operations.
10. the application method of the straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide as claimed in claim 9, feature
Be: the water capacity after the sulfur dioxide adsorbent is moistened with water-wet is the 100% of sulfur dioxide adsorbent sole mass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323263.9A CN109894080A (en) | 2019-04-22 | 2019-04-22 | The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910323263.9A CN109894080A (en) | 2019-04-22 | 2019-04-22 | The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109894080A true CN109894080A (en) | 2019-06-18 |
Family
ID=66956127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910323263.9A Pending CN109894080A (en) | 2019-04-22 | 2019-04-22 | The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109894080A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371817A (en) * | 2021-06-10 | 2021-09-10 | 北京建筑大学 | Biological retention device and preparation method of magnesium modified biochar for mixed filler of biological retention device |
| CN113578267A (en) * | 2021-08-05 | 2021-11-02 | 福州大学 | Polycrystalline nano-magnesia charcoal adsorbent for enriching uranium in nuclear wastewater |
| CN115025755A (en) * | 2022-05-16 | 2022-09-09 | 江苏科技大学 | MgO in-situ modified biochar VOCs adsorbent and preparation method and application thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105126754A (en) * | 2015-09-02 | 2015-12-09 | 上海大学 | Method for removing chromium in water through biochar through corn straw |
| CN106031861A (en) * | 2015-03-19 | 2016-10-19 | 上海融熠投资管理有限公司 | Composite adsorbent |
| CN106675597A (en) * | 2016-12-07 | 2017-05-17 | 广东工业大学 | Preparation method and application of water hyacinth-magnesium oxide composite biochar |
| CN106669603A (en) * | 2016-12-07 | 2017-05-17 | 广东工业大学 | Preparation method and application of magnesium oxide-rice husk biological carbon composite material |
| CN107583636A (en) * | 2017-10-17 | 2018-01-16 | 天津普瑞特净化技术有限公司 | A kind of activated carbon desulphurization agent of supported magnesium oxide and preparation method thereof |
-
2019
- 2019-04-22 CN CN201910323263.9A patent/CN109894080A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106031861A (en) * | 2015-03-19 | 2016-10-19 | 上海融熠投资管理有限公司 | Composite adsorbent |
| CN105126754A (en) * | 2015-09-02 | 2015-12-09 | 上海大学 | Method for removing chromium in water through biochar through corn straw |
| CN106675597A (en) * | 2016-12-07 | 2017-05-17 | 广东工业大学 | Preparation method and application of water hyacinth-magnesium oxide composite biochar |
| CN106669603A (en) * | 2016-12-07 | 2017-05-17 | 广东工业大学 | Preparation method and application of magnesium oxide-rice husk biological carbon composite material |
| CN107583636A (en) * | 2017-10-17 | 2018-01-16 | 天津普瑞特净化技术有限公司 | A kind of activated carbon desulphurization agent of supported magnesium oxide and preparation method thereof |
Non-Patent Citations (7)
| Title |
|---|
| J. H. PARK ET AL.: ""Evaluation of phosphorus adsorption capacity of sesame straw biochar on aqueous solution: influence of activation methods and pyrolysis temperatures"", 《ENVIRON GEOCHEM HEALTH》 * |
| J. PRZEPIÓRSKI ET AL.: ""Low temperature removal of SO2 traces from air by MgO-loaded porous carbons"", 《CHEMICAL ENGINEERING JOURNAL》 * |
| SARAH VIEIRA NOVAIS ET AL.: ""Poultry manure and sugarcane straw biochars modified with MgCl2 for phosphorus adsorption"", 《JOURNAL OF ENVIRONMENTAL MANAGEMENT》 * |
| 夏友付等: ""白芍秸秆制备活性炭的工艺及性能研究"", 《西华师范大学学报( 自然科学版)》 * |
| 孙黎明等: ""改性稻草秸秆活性炭的制备及其对SO2的吸附"", 《环境工程学报》 * |
| 胡永琪: ""负载金属改性的活性炭纤维的脱硫性能的研究"", 《第九届全国化学工艺年会论文集上》 * |
| 邓淋等: ""莲杆基活性炭吸附二氧化硫性能研究"", 《化工技术与开发》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113371817A (en) * | 2021-06-10 | 2021-09-10 | 北京建筑大学 | Biological retention device and preparation method of magnesium modified biochar for mixed filler of biological retention device |
| CN113578267A (en) * | 2021-08-05 | 2021-11-02 | 福州大学 | Polycrystalline nano-magnesia charcoal adsorbent for enriching uranium in nuclear wastewater |
| CN115025755A (en) * | 2022-05-16 | 2022-09-09 | 江苏科技大学 | MgO in-situ modified biochar VOCs adsorbent and preparation method and application thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102357364B (en) | Preparation for the absorbent charcoal based catalyst of flue gas selective reduction desulfurization | |
| CN109894080A (en) | The straw biological charcoal sulfur dioxide adsorbent of supported magnesium oxide makes and uses | |
| CN101259368B (en) | Method for catalytic oxidation of NO with ZSM-5 type molecular sieve as catalyst | |
| CN104759277B (en) | A kind of CeOx‑MnOx/ graphene low-temperature SCR catalyst for denitrating flue gas and preparation method thereof | |
| CN104437371A (en) | Composite porous activated carbon flue gas adsorbent and preparation method thereof | |
| CN109569587A (en) | A kind of manganese-based low-temperature catalyst for denitrating flue gas and preparation method thereof | |
| CN103041811A (en) | Preparation method of catalytic wet oxidation catalyst and treatment method of organic wastewater | |
| CN101279185A (en) | Gas phase oxidation-liquid phase reduction method for absorbing and removing nitrous oxides in exhaust air | |
| CN107715845A (en) | A kind of flue gas desulfurization and denitrification adsorbent and its preparation and application | |
| CN1792415A (en) | Method for preparing hydrogen sulfide desulphurization agent using red mud from alumina plant | |
| CN107126955A (en) | A kind of base low-temperature sintered catalyst for denitrating flue gas of charcoal and preparation method | |
| CN105521781B (en) | A kind of preparation method of fume desulfurizing agent | |
| CN103495386A (en) | Modified activated carbon adsorbent for low concentration organic exhaust gases and its preparation method | |
| CN102343203A (en) | Method for purifying harmful substances in smoke produced by combustion of boiler | |
| CN106140087A (en) | A kind of sludge activity carbon adsorbent for sewage dephosphorization and preparation method thereof | |
| CN101301602B (en) | Method for preparing gaseous mercury absorbing and purifying agent | |
| CN101767011A (en) | Low-temperature catalytic combustion eliminating method of volatile chloro aryl hydrocarbons | |
| CN107626292A (en) | Flue gas desulfurization and denitrification catalyst and its preparation method and application | |
| CN109277077A (en) | The formula and preparation method of a kind of formaldehyde, methane adsorption acticarbon | |
| CN1994551A (en) | Novel preparation process of modified fly ash for processing chrome-containing sewage | |
| CN101791519B (en) | Application process for treating acid gas containing H2S by active carbocoal method | |
| CN110368899A (en) | A kind of absorbent charcoal composite material and its preparation method and application | |
| CN106902764A (en) | A kind of method for preparing acid and alkali-resistance mercury absorbing material and application | |
| CN105854831B (en) | A kind of compound of calcium carbonate of desulphurization denitration | |
| CN102423693A (en) | Preparation and application methods of sulfur dioxide rice straw adsorbent |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190618 |