How to make better granular activated carbon related questions

Answers
Asked by
Updated
How to make better granular activated carbon02021-09-06 18:57:51
Microwave heating can produce good effects in the preparation and modification of activated carbon (S2. Microwave modification, many backwater hole is opened, the distributed capacitance change obviously, promoting the improvement of the adsorption. The microwave power and irradiation time are key determinants of modified activated carbon adsorption performance. On the mechanism of microwave carbonization and activation, it is generally believed thatwww.powdered-activated-carbon.com  Plant waste is mostly made of plant fiber raw materials, in the plant body under the action of capillary, modified solution absorbed by material whole fully, between fiber is filled with the subtle space, make the dry material volume expansion after soaking wet, and reaction. Because of the water in the raw material, modified solution constitute a polar molecule, with a strong absorption of microwave dielectric properties,Therefore, polar molecules collide and rub violently with microwave frequency, generating a large amount of heat, which makes water and modified solution volatilize rapidly, and generate steam pressure, which explodes out from the inside of the raw material to the outside. This sharp action makes the fiber space of the raw material expand and produce sharp drying.In this way, the raw material has a more obvious pore structure and a larger internal specific surface area than before microwave irradiation. Compared with the traditional heating method, the mechanism of microwave in the preparation process of activated carbon is completely different.It shows its unique advantages: high efficiency, energy saving, uniformity, selectivity, low pollution, high thermal efficiency, low energy consumption, simple process and equipment and small footprint, conducive to automation, low carbon loss, and recovery of useful substances. pelletized activated carbon  
How to make better granular activated carbon02021-10-12 18:25:07
By use.Generally there are three kinds. (1) gas phase adsorption of activated carbon.activated charcoal powder  Can be used for exhaust treatment, air purification, solvent recovery, gas separation, deodorization, desulfurization and denitration, industry.Raw material gas refining, gas chromatography filler, air sampler, fresh-keeping, ozone removal, cigarette filter nozzle, gas adsorption storage, military and civil gas masks, etc.(2) liquid phase adsorption of activated carbon.Tap water treatment, pure water manufacturing, industrial and domestic sewage advanced treatment, decolorization refining, blood purification, gold recovery, double capacitor electrode, pharmaceutical carbon, etc.(3) catalyst (catalyst) with activated carbon.www.activated-carbon-pellets.com   Both can be directly used as a catalyst for this industrial process (such as phosgene synthesis, synthesis of vinyl acetate, etc.), more time activated carbon is used as a catalyst carrier (such as carrying precious metal pins, men, palladium, nails, gold made of pin carbon, palladium carbon catalyst, etc.).(1) solvent recovery.Such as recycling printing industry with xylene, toluene, benzene and other solvents;Recycling organic solvents such as ethanol, acetone, ester and ether from plastics and artificial leather industry;Recycling of hexanone in tape factory;Recycling of dichloromethane from resin processing plants, etc.(2) air purification.Such as electronic, pharmaceutical industry aseptic workshop air purification;Removal of ozone in the air of the copy room and computer room;The removal of foreign odor in the air of confined space;Odor removal from refrigerators, etc.(3) Nuclear and biochemical protection.Nuclear radiation, biological warfare agents, chemical warfare agents are weapons of mass destruction, activated carbon is loaded with a variety of chemical agents can effectively protect it Activated carbon or chemical-loaded activated carbon is often used as a key component of personal protective equipment in the presence of toxic gases in the civilian industry. During the SARS crisis in late 2002 and early 2003, special protective masks with activated carbon loaded with silver played a role in protecting health care workers. 
How to make better granular activated carbon02021-11-04 01:36:24
By use.Generally there are three kinds. (1) gas phase adsorption of activated carbon.coal activated carbon supplier   granular activated charcoal  Can be used for exhaust treatment, air purification, solvent recovery, gas separation, deodorization, desulfurization and denitration, industry.Raw material gas refining, gas chromatography filler, air sampler, fresh-keeping, ozone removal, cigarette filter nozzle, gas adsorption storage, military and civil gas masks, etc.(2) liquid phase adsorption of activated carbon.Tap water treatment, pure water manufacturing, industrial and domestic sewage advanced treatment, decolorization refining, blood purification, gold recovery, double capacitor electrode, pharmaceutical carbon, etc.(3) catalyst (catalyst) with activated carbon.  
How to make better granular activated carbon02021-11-05 02:52:36
Can be used for exhaust treatment, air purification, solvent recovery, gas separation, deodorization, desulfurization and denitration, industry.Raw material gas refining, gas chromatography filler, air sampler, fresh-keeping, ozone removal, cigarette filter nozzle, gas adsorption storage, military and civil gas masks, etc.(2) liquid phase adsorption of activated carbon.Tap water treatment, pure water manufacturing, industrial and domestic sewage advanced treatment, decolorization refining, blood purification, gold recovery, double capacitor electrode, pharmaceutical carbon, etc.(3) catalyst (catalyst) with activated carbon.wholesale activated carbon pellet  Both can be directly used as a catalyst for this industrial process (such as phosgene synthesis, synthesis of vinyl acetate, etc.), more time activated carbon is used as a catalyst carrier (such as carrying precious metal pins, men, palladium, nails, gold made of pin carbon, palladium carbon catalyst, etc.).(1) solvent recovery.Such as recycling printing industry with xylene, toluene, benzene and other solvents;Recycling organic solvents such as ethanol, acetone, ester and ether from plastics and artificial leather industry;Recycling of hexanone in tape factory;Recycling of dichloromethane from resin processing plants, etc.(2) air purification.Such as electronic, pharmaceutical industry aseptic workshop air purification;Removal of ozone in the air of the copy room and computer room;The removal of foreign odor in the air of confined space;Odor removal from refrigerators, etc.(3) Nuclear and biochemical protection.Nuclear radiation, biological warfare agents, chemical warfare agents are weapons of mass destruction, activated carbon is loaded with a variety of chemical agents can effectively protect it Activated carbon or chemical-loaded activated carbon is often used as a key component of personal protective equipment in the presence of toxic gases in the civilian industry. During the SARS crisis in late 2002 and early 2003, special protective masks with activated carbon loaded with silver played a role in protecting health care workers.www.chinactivecarbon.com/  (4) deep purification treatment of tap water.Practice has proved that activated carbon is still has the best effect of the depth of water purification products, its dosage in recent | years show how multiple growth. There is evidence that the next five years will be a rapid growth period for white water purification in China, and the demand for carbon for water purification will be a blowout development.(5). Deep purification treatment of industrial wastewater. For example, the three-level decolorization of printing and dyeing wastewater, the removal of heavy metal ions from electroplating wastewater, the purification of papermaking wastewater and the removal of COD from petrochemical industrial wastewater to meet the discharge standards, activated carbon has been proved to be one of the most effective deep purification materials. 
How to make better granular activated carbon02021-09-06 23:16:59
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 make better granular activated carbon02021-09-02 00:17:08
Microwave method, microwave method is not independent of the physical method and chemical method of the preparation of activated carbon, but on the basis of the physical method and chemical method instead of the traditional heating method, but it has a very significant effect. activated charcoal pellets Under certain operating conditions, the gas mixture by adsorption bed, adsorption by adsorption, adsorption after a period of time, when starting from the adsorbent in the laminar flow of the gas adsorbed mass (or its concentration reaches a specified value), think bed fire, adsorption properties of adsorbent adsorption quantity at this time is called dynamic activity of adsorbent. The activity is not only related to the characteristics of adsorbents and adsorbents, but also related to temperature, concentration and operating conditions. The kinetic activity value of adsorbent is the main basis for the design of adsorption system.activated charcoal pellets  The adsorption rateThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, the adsorption process can be divided intoThe adsorption process often takes a long time to reach equilibrium, and the contact time is limited in the actual production process.Therefore, the amount of adsorption depends on the adsorption rate, and the adsorption rate is related to the adsorption process, which can be divided into the following steps 
How to make better granular activated carbon02021-12-17 23:02:28
Affected by the change of energy prices, the enterprises that use petroleum and coke as raw materials to produce urea and methanol have successively transformed thactivated carbon company  eir gas-making systems to burn inferior coal to reduce costs. These changes more or less to the original system and production process caused a certain impact, these new problems caused by the change of raw materials must be solved, to ensure the production of efficient and stable operation. In view of the characteristics of large amouactivated carbon gold mining nt of matter and high content of benzene organic matter in gas, the method of removing these substances is studied and the solution is given. In this study, the concentration of benzene, naphthalene and ash in gas before purifying feed-gas compressor was determined by chromatograph, picric acid titration and weighing method respectively. According to the measured values, the experimental flow was designed, and coke column and activated carbon column were made by themselves. The isobarisothermal adsorption properties of activated carbon at different temperatures, at different pressures and at different flow rates were determined by using the gas produced in the system as samples.The adsorption effluent curve of benzene by activated carbon was plotted. The effects of different temperature on the regeneration performance of activated carbon under static environment, the effects of steam at different temperature on the regeneration performance of activated carbon under dynamic environment and the effects of nitrogen at different temperature on the regeneration performance of activated carbon under dynamic environment were studied. The experimental results showed that high pressure and low temperature were beneficial to the adsorption, and the flow rate had little effect on the equilibrium adsorption capacity in the range of experimental flow rate. The adsorption capacity of benzene by activated carbon in the experiment was 150~170mg/g under operating conditions. At the same time, the filtration and adsorption properties of coke were tested. The experiment shows that the adsorption performance of the test coke on benzene is very weak, can not be used as the nitrogen adsorbent, but the coke filter and adsorption performance of ash and naphthalene is very good, the content of naphthalene and ash after the gas through the coke column completely meet the design requirements. The results show that the combined use of coke and activated carbon in the gas system can completely achieve the purpose of removing benzene, naphthalene and ash. According to the above research results, a coke filter was designed. The application of the equipment solved the problems that the feedstock gas compressor in the urea blackening unit could not run for a long period due to the vibration caused by the scaling of the rotor, the blockage of the flow channel and the problems that the naphthalene formation in the heat exchanger affected the heat transfer effect. 
How to make better granular activated carbon02021-12-28 21:35:53
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, 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 gold mining  Introduction to activated carbon  At present, about 80% of China's coal-based activated carbon products are exported, and it is the largest coal-based activated carbon exporter in the world. Shanxi and Ningxia account for about 90% of China's coal-based activated carbon production and 80% of the export of coal-based activated carbon.Therefore, the production of coal-based activated carbon products has a broad prospect and is expected to achieve good economic benefits in the regions with rich raw material resources.At present, the production of coal-based activated carbon is mainly in Shanxi, Ningxia and Henan.The production of activated carbon with nut shell as raw material is mainly in hebei province; the production of activated carbon with wood as raw material is mainly concentrated in fujian, jiangxi, southern zhejiang and northeast region.In recent years, has gradually formed to Henan Changge City, Ningxia Yinchuan City and surrounding areas, Shanxi Datong region as the representative of the "three" activated carbon production base.Ningxia Yinlong Activated Carbon Co., Ltd. is the largest active carbon manufacturer in Asia with an annual output of 50,000 tons.Ningxia Huahui Activated Carbon Co., Ltd. manufactures a wide variety of activated carbon products and some of the performance of the products up to the world's advanced level.activated carbon company   Shenhua Ningxia coal industry taixi charcoal based company activated carbon plant in recent years also determined to establish the world's largest activated carbon production base, the activated carbon industry will develop into one of the four pillar industries of Ningxia coal industry. 
How to make better granular activated carbon02021-12-17 00:15:13
In view of the characteristics of large amount of matter and high content of benzene organic matter in gas, the method of removing these substances is studied and the solution is given. In this study, the concentration of benzene, naphthalene and ash in gas before purifying feed-gas compressor was determined by chromatograph, picric acid titration and weighing method respectively. According to the measured values, the experimental flow was designed, and coke column and activated carbon column were made by themselves. www.powdered-activated-carbon.com  The isobarisothermal adsorption properties of activated carbon at different temperatures, at different pressures and at different flow rates were determined by using the gas produced in the system as samples.The adsorption effluent curve of benzene by activated carbon was plotted.activated carbon pellets wholesale   The effects of different temperature on the regeneration performance of activated carbon under static environment, the effects of steam at different temperature on the regeneration performance of activated carbon under dynamic environment and the effects of nitrogen at different temperature on the regeneration performance of activated carbon under dynamic environment were studied. The experimental results showed that high pressure and low temperature were beneficial to the adsorption, and the flow rate had little effect on the equilibrium adsorption capacity in the range of experimental flow rate. The adsorption capacity of benzene by activated carbon in the experiment was 150~170mg/g under operating conditions. 
How to make better granular activated carbon02021-12-17 00:14:05
Its adsorption is selective, and non-polar substances are easier to be adsorbed than polar substances.In the same series of substances, the higher the boiling point of the substance, the more tolerantEasy to be adsorbed, the greater the pressure, the lower the temperature, the greater the concentration, the greater the amount of adsorption.On the contrary, decompression and heating are beneficial to gas desorption.It is often used for gas adsorption,Separation and purification, recovery of solvents, decolorizing agents for sugar solution, grease, glycerin, medicine, deodorant for drinking water and refrigerators, filter agent for gas masks,It can also be used as a catalyst or metal salt catalyst carrier.Early production of activated carbon raw materials for wood, hard nut shell or animal bones, later mainly used coal, after dryingDistillation, activation treatment after the production of activated carbon methods are :① steam, gas activation method.Carbon is activated by water vapor or carbon dioxide at 850~900℃.activated carbon for gold recovery  ② chemical activation method.Activated carbon can be obtained after high temperature treatment by using the gas released by the activator or soaking the raw material with the activator.Activated carbon has a micro product structure, the micro product arrangement is completely irregular, the product body has micropores (radius is less than 20[angstroms]=10-10 meters), through the hole (halfDiameter 20~1000), large hole (radius 1000~100000), so that it has a large inner surface, specific surface area of 500~1700 m 2/ g.This determines that activated carbon has good adsorption, can adsorb the metal ions in waste water and waste gas, harmful gases, organic pollutants, pigments and so on. activated carbon wholesale  
How to make better granular activated carbon02021-12-29 21:07:49
Activated carbon catalyst can promote the decomposition of ozone. The consumption rate of liquid phase ozone in activated carbon catalytic secondary oxidation process is 71.2% higher than that in ozone secondary oxidation process. The analysis of the relationship between ozone consumption and organic matter content in activated carbon catalytic secondary oxidation process shows that activated carbon can react directly with ozone or act as a free radical initiator in the process of ozone decomposition, especially when the organic matter content in water is low. When ozone dosage is L mg/L, the MIB removal rate of catalytic secondary oxidation is about L times higher than that of ozone secondary oxidation. When the concentration of ozone in water is about 1.5 mg/L, the catalytic secondary oxidation makes BrO; The concentration decreased by 0.04mg/L.activated carbon for gold recovery  The combined process of catalytic oxidation and activated carbon filtration has higher water purification efficiency. When the influent ozone concentration is 0~0.1 mg/L and influent UV254 is 0.020~0.030 L /em, the average removal rate of UV2sa by catalytic and ozone activated carbon is 30% and 21%, respectively. The removal rate of UV2s4 and DOC by activated carbon filtration is the highest when influent water quality and liquid phase ozone concentration is moderate. The DOC removal rate reached the maximum when the liquid phase ozone relative concentration (O/DOC) was about 0.3. The organic matter content and ozone concentration of activated carbon influent after catalytic oxidation are low, which is beneficial to the adsorption capacity and surface properties of activated carbon. In addition, metal oxides lost by the catalyst can be adsorbed by the activated carbon, which also helps to promote the decomposition of ozone on the surface of the activated carbon. activated carbon wholesale  
How to make better granular activated carbon02021-05-27 23:58:02
Several strategic and tactical negotiation levers are explained in the report to help buyers achieve the best prices for the Activated Carbon market yrdcarbon. The report also aids buyers with relevant Activated Carbon pricing levels, pros, and cons of prevalent pricing models such as volume-based pricing, spot pricing, and cost-plus pricing and category management strategies and best practices to fulfill their category objectives.activated carbon pellets companies  The pressure from substitutes and a moderate level of threat from new entrants has resulted in the low bargaining power of suppliers.Price forecasts are beneficial in purchase planning activated charcoal powder wholesale, especially when supplemented by the constant monitoring of price influencing factors. During the forecast period, the market expects a change of 5.00%-8.00%.Identify favorable opportunities in Activated Carbon TCO (total cost of ownership).granular activated carbon manufacturers korea   Expected changes in price forecast and factors driving the current and future price changes.Identify pricing models that offer the most rewarding opportunities.Information on how to identify strategic and tactical negotiation levels that will help achieve the best prices.Gain information on relevant pricing levels, detailed explanation on pros and cons of prevalent pricing models. Methods to help engage with the right suppliers and discover KPI's to evaluate incumbent suppliers. Industry should beActivated carbon also requires high mechanical strength, good wear resistance, its structure is stable, small energy required for adsorption, in order to be conducive to regeneration.Activated carbon for oilDecolorization, deodorization, gas separation, solvent recovery and air conditioning of fat, beverage, food and drinking water, used as catalyst or adsorbent for body and gas mask.Physical characteristics:Activated carbon is a kind of multi-aperture carbonization, has a very rich pore structure, has good adsorption characteristics, its adsorption by physical and chemicalAbsorbed from the force, the appearance of the color and lustre is black.Its composition in addition to the main carbon, but also contains a small amount of hydrogen, nitrogen, oxygen, its structure is shaped like a hexagon, due to the irregular hexagon structure, determine the characteristics of its body also incandescentand high surface area, each gram of activated carbon has the equivalent of 1000 square meters than the surface. 

Ask New Question  

  • You are not logged in,answer will be Anonymous.Set Nickname | Sign In | Sign Up
  • tags separate by ','
  • Shortcuts:Ctrl+Enter

Latest Questions