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How is high quality activated carbon produced02021-07-10 01:02:51
Principle of activated carbon adsorption activated carbon is a kind of very small granular has a large surface area, and more tiny holes in the granular - capillary. The capillary has very strong adsorption capacity, due to the granular surface area is large, so a good contact with with gas (impurities). When these gases (impurities) encounter capillary by adsorption, purification effect. Activated carbon surface area of the study is very important, only the BET specific surface area detecting data of active carbon method detected result is reliable, domestic at present there are many instruments can only make direct comparison method of detectionIn domestic has been eliminated. Specific surface area test unified the multi-point BET method at home and abroad, specific surface area measurement standards are developed at home and abroad is based on BET test method, please see our national standard (GB/T 19587-2004) - gas adsorption BET principle of solid material specific surface area measurement methods. Specific surface area testing is actually the more time-consuming jobs, as the adsorption capacity of sample is different, some sample testing may need to spend the whole dayTime, if the test process is not fully automated, the tester can not leave at any time, and should be highly focused, observe the dashboard, control the knob, a little careless will lead to the failure of the test process, which will waste a lot of valuable time of the tester.activated carbon pellet manufacturer  F - Sorb 2400 specific surface tester is really able to BET method detection instruments (both direct comparison method), the more important F - Sorb 2400 specific surface tester is by far the only specific surface area of the fully automated intelligent testing equipment, the test results with the international high consistency, the stability is very good also, at the same time reduce the human error, improve accuracy test results.chinactivecarbon.com  The adsorption capacity of activated carbon on each gas (unit: mL /cm3):H2, O2, N2, CI2, CO2 4.5, 35, 11, 494, 97 The main factors affecting the adsorption of activated carbon ① the nature of activated carbon adsorbent The larger the surface area, the stronger the adsorption capacity; Activated carbon is a non-polar molecule, easy to adsorb non-polar or very low polarity adsorbent; The size of the activated carbon adsorbent particle, the structure and distribution of the fine pore and the surface chemical properties also have a great influence on the adsorption. (2) the nature of the adsorbent Depends on its bath solubility, surface white energy, polarity, adsorbate molecule size and unsaturation, the concentration of adsorbate, etc ③ Wastewater pH value Activated carbon generally has a higher adsorption rate in acidic solution than in alkaline solution. The pH value will affect the state and bath solubility of the adsorbent in the water towel, thus affecting the adsorption effect. ④ Coexisting substances When a variety of adsorbates coexist, the adsorption capacity of activated carbon to a certain adsorbate is worse than that containing only the adsorbate 
Activated carbon produced by the high-tech industry02021-06-08 18:52:11
Electrochemical modification is to change the electrical and chemical properties of activated carbon surface by using micro electric field, so as to improve the adsorption selectivity and performance.It does not need to add chemical agents, does not need to heat, does not cause pollution to the environment, low energy consumption, only a few hundred millivolts, easy to operate.The results show that the adsorption equilibrium of activated carbon is dependent on the electric potential: the adsorption amount of activated carbon increases with the increase of the potential, and the adsorption speed is accelerated;Arpolarity polarization is beneficial to the adsorption of chloroform by activated carbon, while cathodic polarization inhibits the adsorption of chloroform by activated carbon 3-341]. Activated carbon heteroatom carrier and compound modificationActivated carbon has very high stability and good activity, these two basic properties become the activated carbon as a catalyst or catalyst carrier conditions.By introducing certain heteroatoms and compounds on the surface of activated carbon by liquid phase deposition, the adsorption performance of activated carbon can be increased by using the binding effect between these substances and adsorbents.compounds, which has the advantages of increasing the reaction rate and increasing the adsorption capacity.Yang Quanhong et al. 'Using FESO;Activated carbon material was modified. activated charcoal pellets bulk  Firstly, the adsorption and desorption isotherms of three activated carbons for coconut shell-based smoke and three activated carbons for apricot kernel based smoke were determined by low temperature nitrogen adsorption method. The specific surface area and total pore volume were calculated by BET model. The microstructure parameters and pore size distribution of micropores and mesopores were calculated by H-K method and BJH method, respectively. The surface morphology of activated carbon was also observed by scanning electron microscope. The results show that the pore structure of activated carbon for commercial tobacco is different at present. Among the six activated carbon samples selected, Y1 and CTN are microporous activated carbon, and the micropore ratio is more than 97%. X3 and X5 samples were medium pore activated carbon with microporosity of only 69.3% and 55.5%. The micropore contents of X2 and Y5 samples were 87.2% and 81.8%, respectively, between X3 and X5 samples and Y1 and CTN samples. SEM observation of the surface morphology of activated carbon samples for smoke showed that the surface of activated carbon was honeycomb-like with developed pores, and the large pores were all in the shape of open pipe structure. There were various small circular and elliptical holes on the pipe wall. www.wyactivatedcarbon.com 
What is the majority of carbonization process of activated carbon? How to produce high quality activated carbon in large quantities02021-07-10 01:00:27
Generally speaking, forming carbon can be mixed with a variety of raw coal to adjust the pore distribution characteristics of the final product, so as to obtain some special application performance, and more than 80% of the pore distribution characteristics of raw coal directly broken carbon has been determined by the raw material, so the performance and use is simple.activated carbon manufacturers  (2) wood activated carbon.It is mshell/core activated carbon.Such as coconut shell carbon, apricot kernel carbon, peach kernel carbon, etc.(4) petroleum activated carbon.Using petroleum asphalt, petroleum coke as raw materials, made of activated carbon products.resin activated carbon.Using phenolic resin, waste ion exchange resin as raw materials, through a special process of activity.Carbon products, sometimes fibrous carbon also falls into this category.High - definition watermark of cut document under air(6) other small varieties of activated carbon products. Made of animal blood blood carbon, made of animal bones bone charcoal (there is very little, but bone charcoal carbon main ingredients of hydroxy calcium phosphate), with active carbon molecular sieve made of various materials, made of strong base and carbon materials of high surface area activated carbon, is made of organic polymer solution after mold made of special process method of activated carbon, activated carbon aerogels and so on. coal activated carbon manufacturer  Some of them are very small production and dosage, and some are still in the laboratory research stage, so they are included in the category of small varieties of activated carbon products. ade of all kinds of hard wood, crop wastes, and other industrial and agricultural wastes containing lignocellulose The beansMaterial as raw material, through the chemical method, physical method or physical-chemical combination of activated carbon. 
High quality activated carbon is available02021-09-06 20:24:00
Due to the formation of complex between activated carbon and the host, the complex catalyst increases the catalytic activity. For example, the activated carbon containing palladium salt, even without the presence of copper salt catalyst, the oxidation reaction of ene can also be catalyzed, and the speed is fast and the selectivity is high. www.powdered-activated-carbon.com  Because activated carbon has developed fine pore structure, huge internal surface area and good heat resistance, acid resistance, alkali resistance, can be used as a catalyst carrier. For example, in organic chemistry, hydrogenation, dehydrogenation, cyclamation, isomerization and other reactions, activated carbon is an excellent catalyst for platinum, palladium. Mechanical property of activated carbon (1) particle size: a set of standard screening method is used to calculate the weight of activated carbon left and passed through each sieve, indicating particle size distribution. (2) static density or heap density: diet pore volume and intergranular space volume of the weight of activated carbon per unit volume. (3) volume density and particle density: the weight of activated carbon per unit volume of the diet of pore volume rather than the diet of intergranular space volume.pelletized activated carbon  (4) strength: that is, the crushing resistance of activated carbon. (5) wear resistance: that is, wear resistance or abrasion resistance. These mechanical properties directly affect the application of activated carbon, for example: density affects the size of the container; The thickness of powder carbon affects filtration; The distribution of particle size affects the fluid resistance and pressure drop. Fragmentation affects the service life of activated carbon and regeneration of waste carbon. 
High quality activated carbon is available02021-07-30 23:22:58
At this time, the concentration of the adsorbed substance in the solution is called equilibrium concentration.In aerobic part, a self-made internal circulating biological fluidized bed reactor was used to treat organic pesticide wastewaterThe effects of internal circulating biological fluidized bed on the removal of organic matter and the deamination of organic pesticide wastewater, the change of wastewater biodegradability and acute biological toxicity were investigated.The results show that the internal circulation biological fluidized bed with granular activated carbon as the carrier has a fast speed of membrane and can be cultured in about days by the rapid sludge drainage methodOut of activated sludge.The internal circulating biological fluidized bed with granular activated carbon as the carrier is not sensitive to temperature change at 1 ℃, and has a certain impact resistance ability.Aeration amount has effect on the treatmentToo large or too small aeration will reduce the reactor treatment efficiency.The optimal hydraulic retention time of the internal circulating biological fluidized bed using granular activated carbon as carrier is, and the treatment effect will be affected if the hydraulic retention time is too long or too short. www.powdered-activated-carbon.com  At the aeration rate of /,During hydraulic retention, the total helium removal rate is.%,.%, water effluent/up tothe biodegradability of wastewater was significantly improved, and the acute biological toxicity was reduced by %.When the efficiency of internal circulating activated carbon biological fluidized bed treatment is.%, the reaction is obtained pelletized activated carbon 
How to prepare high quality activated carbon02022-02-14 22:13:40
The industrial and industrial production of graphene with low cost and large output can be completed, which will greatly promote the development of downstream industries.gold recovery from activated carbon  Using graphene's remarkable physical and chemical properties, electrons can travel through graphene much faster than they can through silicon, creating more sensitive sensors, electronic components, displays, solar cells and hydrogen storage devices. Pacific Northwest National Laboratory and Princeton University are working with a private company to develop a high-capacity, fast-charging battery.activated carbon china manufacturers   The secret is to add graphene to lithium-ion batteries to improve power and cycle stability. Researchers at Stanford University say graphene-based lighting could be cheap and environmentally friendly. Graphene-based LECs could replace metal-based OLEDs(organic light-emitting diodes). They could also replace traditional metal-based graphite electrodes in lamps, making them cheaper and easier to recycle. Researchers in China found that bacterial cells on graphene paper were unable to grow, while human cells were not damaged. Take advantage of this by making bandages, food wrappers and even antibacterial t-shirts. The scientific community is paying close attention to the research progress of graphene, this amazing material once put into practice will bring revolutionary changes to human society. 
Wholesale high quality dry activated carbon02021-04-16 00:38:44
Surface oxidation modification is mainly to oxidize the functional groups on the surface of activated carbon materials by using appropriate oxidants at appropriate temperatures, so as to improve the content of oxygen-containing groups on the surface of carbon materials, enhance the surface hydrophilicity and polarity, and enhance the adsorption capacity of polar substances. The number and types of oxygen-containing functional groups are different after treatment with different oxidants.Oxidation treatment also changed the void structure of activated carbonThe commonly used modified oxidants mainly include HNO, HClO, HPO, H,SO4, HF, O and HO, etc. Oxidant HNO;After the modified activated carbon was treated with proper amount of nitric acid, the mesopore increased, the ratio of carboxylic hydroxyl increased, the surface polarity of activated carbon increased, and the adsorption capacity of some solutes with certain polarity increased.However, excessive nitric acid modification treatment will increase the unstable groups on the surface of activated carbon and fail to achieve the predetermined effect 18-20]. After modified by HCIO with mild oxidation, the number of oxygen-containing groups on the surface of activated carbon increased, but the micropore structure and specific surface area did not change much.After ozonation treatment, the number of oxygen-containing acid functional groups on the surface of activated carbon and the surface acidity increased, and the adsorption rate and capacity of C** increased. P-Morwski et al. 2 used HNO to oxidize the carbon synthesized from phenols, and the adsorption performance of the treated activated carbon material to trihalomethane was greatly improved.Shan Xiaomei et al. 2 found that the surface area and pore volume of activated carbon decreasedafter high concentration of HNO treatment.activated carbon factory  However, the surface and pore volume of activated carbon increased after low concentration HNO treatment.(NH4) S0.Oxidation changes the micropore size distribution of coal-based carbon, but has little effect on the micropore size distribution of coconut-shell carbon. Water is the source of life and the most basic material guarantee for human survival and social development. Nowadays, the shortage of fresh water resources has become the main factor restricting social development.coconut activated carbon factory  As an important means of water treatment, desalination can alleviate the contradiction between supply and demand of fresh water resources. Traditional desalination methods are limited in application due to their high energy consumption, high cost and difficulty in regeneration. 
The role of high quality activated carbon02021-12-22 00:06:16
High-quality granular activated carbon must have good adsorption performance and strength. Like powdery activated carbon, the adsorption performance of granular activated carbon depends largely on the characteristics of pore structure. The adsorption performance index can be analyzed and characterized by different methods, such as the decolorization performance of activated carbon expressed by methylene blue. Other performance indexes include iodine adsorption value, caramel decolorization rate, etc. activated carbon for gold recovery  The pore structure characteristics and specific surface area of activated carbon are usually obtained by measuring nitrogen adsorption isotherm at low temperature with adsorption apparatus.activated carbon wholesale  For the gas phase adsorption, the size of the gas molecules is usually less than 1. ONM, the use of microporous activated carbon; For liquid-phase decolorization refining, due to the large size of the liquid molecules, it is necessary to use activated carbon with developed mesopore. Activated carbon has a large specific surface area and a particularly developed micro-pore structure, which is the main reason for its strong adsorption capacity and large adsorption capacity. 
How to find high quality activated carbon02021-04-27 19:51:34
It is worth noting that there is a shortage of activated carbon in China. For a long time, the production of drugs using activated carbon as raw materials has been kept in the laboratory, and no products have been marketed or used in clinical trials. Experts said that with the continuous improvement of people's life quality and health care consciousness enhancement, as well as the rapid development of all kinds of industrial, environmental pollution has been increasingly serious, people an opportunity to contact with a variety of harmful material, activated carbon and activated carbon as the leading raw material to produce medicines and health products, medical market will become a major conventional leading consumer products, activated carbon china manufacturers  Market demand will be on the rise year by year, is a new economic growth point in the pharmaceutical and chemical market, its economic and social benefits will increase year by year. After adsorption equilibrium was achieved in the adsorption capacity remained at 3.6 mg lL above, grapefruit peel activated carbon adsorption of ammonia followed pseudo second order kineticmodel of the process; by the Henry equation and Freundlich equation with correlation coefficient R'known, Henry isotherm models and Freundlich isotherm models can be used for the des Cription ofgrapefruit peel on the ammonia adsorption characteristics of activated carbon; ammonia initialconcentration,dosage, pH and temperature on the ammonia adsorption are affected, litle effect oftemperature on adsorption. coconut shell activated carbon price  (3) Adsorption at adsorption equilibrium was achieved after 3h, the adsorption capacityremained at 300 mg/kg above, grapefruit peel activated carbon adsorption of phosphate follows thequasi-second order kinetic model; Freundlich R'correlation coefficients were significant, therefore,grapefruit peel activated carbon adsorption of phosphorus found Freundlich isotherm model;initialconcentration, dosage, pH and adsorption temperature on adsorption of phosphorus are affected, pH onthe adsorption of non- large. (4) Adsorption at adsorption equilibrium was achieved after 14h, the adsorption capacityremained at 21.5 mg / g above. Grapefruit peei activated carbon Cr () in the adsorption processfollowed pseudo second order kinetic model; by the Langmuir equation and Freundlich equation of thecorrelation coefficient R' known,consistent with Langmuir isotherm model and the Freundlichisotherm model.Using Langmuir isotherm model to analyze the experimental data obtained in thesolution pH 4, the maximum adsorption capacity was 26.25mg / g;Freundlich isotherm model using 
Why can China produce so much high quality activated carbon02021-07-10 01:04:45
The selection of treatment technology should be based on the gas volume, purification requirements, the possibility of recovery, the economy of equipment construction and operation and other conditions. Special attention should be paid to the close cooperation with the process in practical work, so as to achieve comprehensive utilization as far as possible. At present, there are three common methods of organic waste gas treatment at home and abroad: liquid absorption method, activated carbon adsorption method and catalytic combustion method. The maintenance sewage contains a large number of complex biodegradable substances, biodegradability is poor, for many years mainly rely on fresh water dilution treatment and combustion furnace treatment, but these two methods are low efficiency and high cost, so it is necessary to develop new wastewater treatment methods. Although we have studied the upflow anaerobic sludge bed reactor (UASB) for the treatment of high concentration sewage of the natural gas purification plant, the start-up test results of 133 days show that the effluent COD removal rate is only about 40% when the influent COD is 6000mg/L, and the treatment effect is not good. Therefore, it is of practical significance to explore and seek an effective pretreatment method.activated carbon manufacturers  In this paper, Fenton oxidation and activated carbon adsorption were combined to pretreat the wastewater from natural gas purification maintenance, in order to improve the subsequent operation efficiency of UASB.dxdcarbon.com  This experiment by orthogonal test to determine the Fenton reagent oxidation first preliminary operating conditions, on this basis, carries on the single factor analysis method, the main factors influencing the Fenton reagent treatment effect for each study, investigation of its influence on wastewater COD removal rate, the results show that Fenton oxidation method the optimum operating conditions for natural gas purification overhaul wastewater treatment: HO2 dosing quantity 0.3 mol/L, n (HO)/n (Fe) = systematically, initial pH = 3, reaction temperature 70 ℃, reaction time, 40 min. Under these conditions, the COD removal rate reached 78.6%, the BOD /COD value increased from 0.168 to 0.353-0.403, and the biodegradability was greatly improved. If Ho is added in three times and the interval time is 10min, the COD removal rate will increase from 78.6% to 80.3%. Therefore, it can be seen that H0: batch addition will further improve the reaction effect. After Fenton oxidation treatment, wastewater and activated carbon adsorption, this topic activated carbon adsorption experiments using single factor method, examines different PH, activated carbon adsorption dosing quantity and the influence of adsorption time of wastewater COD removal rate, the results show that after Fenton oxidation treatment without having to adjust PH value, according to the 20 g/L after adding the activated carbon reaction 3 h at room temperature, COD removal rate was 47.3%,, BOD/COD value of 0.438 to 0.625. The research in this paper has laid a theoretical foundation and provided an experimental basis for the practical application of Fenton oxidation and activated carbon adsorption in the pretreatment of natural gas purification maintenance wastewater in UASB reactor. 
The largest origin of high quality activated carbon02022-01-03 21:46:41
China's activated carbon production coal is mainly concentrated in the northwest region, there are long bituminous coal, weak viscous coal and anthracite, due to the single coal properties of the restriction, China's coal-based activated carbon products are mostly in the middle and low grade products.Coal based activated carbon production in China, starting in the 1950 s, but slow to develop early in the early 1980 s the national annual production of about 4 000 t [2 l. Along with the reform and opening up, economic development and the gradual improvement of the people's living standard and increasing efforts in environmental protection at home and abroad in recent years, domestic demand of activated carbon, and exports continue to increase, coal based activated carbon industry is developing rapidly. In the late 80 s, activated carbon for gold recovery  China's coal-based activated carbon produced more than 20000 tons, in 2000 reached 100000 tons, 400000 tons in 2008 or so,China has basically formed an independent, complete and initial industrial system for the preparation of activated carbon, and has become the world's largest producer of coal-based activated carbon.Due to the advantages of coal resources and product price, China's coal-based activated carbon products have a strong competitiveness in the international market. activated carbon wholesale 
Why can China produce so much high quality activated carbon how about the price02021-07-10 01:05:54
In domestic has been eliminated. Specific surface area test unified the multi-point BET method at home and abroad, specific surface area measurement standards are developed at home and abroad is based on BET test method, please see our national standard (GB/T 19587-2004) - gas adsorption BET principle of solid material specific surface area measurement methods. Specific surface area testing is actually the more time-consuming jobs, as the adsorption capacity of sample is different, some sample testing may need to spend the whole dayTime, if the test process is not fully automated, the tester can not leave at any time, and should be highly focused, observe the dashboard, control the knob, a little careless will lead to the failure of the test process, which will waste a lot of valuable time of the tester.activated carbon pellet manufacturer  F - Sorb 2400 specific surface tester is really able to BET method detection instruments (both direct comparison method), the more important F - Sorb 2400 specific surface tester is by far the only specific surface area of the fully automated intelligent testing equipment, the test results with the international high consistency, the stability is very good also, at the same time reduce the human error, improve accuracy test results. chinactivecarbon.com 

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