The invention relates to a biogas dewatering desiccant applicable to low enthalpy energy regeneration. Therefore, we can use it as a desiccant. Test environment: temperature 60 C, relative humidity 90%. . No Harmful substances inside our solution. The temperature at which DRIERITE desiccants are regenerated is crucial in restoring DRIERITE to its original condition. CaSO_4, is heated at a temperature greater than 170 degree C in a crucible until a It is highly water-soluble. sustainable working time of 60-90 days at room temperature and humidity, the maximum moisture absorption rate can reach . . to maintain system temperature. Professionally drafted and regularly updated online templates. Soluble agents include calcium chloride and glycerol. This is another reason why you may not want to use calcium . According to Dry & Dry producer of silica gel, you should dry for 0.5 to 2 hours at 200 to 250 F in a conventional oven. Calcium chloride is 10% of the cost of lithium chloride, and using 50/50 blends of the two desiccants can provide equilibrium vapour pressures - and resulting air moisture content/dew point - very similar to that of using a single solution of lithium chloride. Application principle of calcium chloride desiccant. Regenerator is usually an adiabatic unit. In the microwave oven the temperature of 90 can be exceeded to speed up the regeneration procedure, however it is better to always keep some limitations in mind so as not to exceed. CAS Number: 10043-52-4. For example: if a company wants to protect a . 4 These salts are all very corrosive to metals typically used in air conditioning . 3. Tens of thousands of tons are produced annually for this purpose. Reduced fire hazardCalcium Molecular Weight: 110.98. Place the wet desiccant in the glass dish. MDL number: MFCD00010903. Examples include silica gel, bauxite, calcium sulfate and montmorillonite clay. (1976) used calcium chloride for preservation of food grains under humid tropical conditions. The desiccant regeneration temperature, the desiccant concentration, and the desiccant flow rate were held constant during the experiments. A desiccant like calcium chloride can be mixed with water to create a recirculating waterfall that dehumidifies a room using solar thermal energy to regenerate the liquid, and a PV-powered low-rate water pump to circulate liquid. Data and equations for estimating viscosity of calcium chloride solutions over the temperature range of 20-508 o C are . 2.6.1 Internally heated regenerator. After the dehumidifying process air, solar energy is used to reactivate diluted and continuously operate the system cyclically. Calcium chloride (CaCl 2) is inexpensive, easily available calcium salt with a wide range of applications. Product name. Guam Calcium Chloride - get access to a huge library of legal forms. It was found that the values of the injected droplet diameter size, spray angle, hot air temperature, and spray injection speed had an important role in the liquid desiccant regeneration process. The salt has got a high solubility in water which increases with increasing temperatures. The dangers of calcium chloride are so extreme that The US National Library of Medicine (NIH) even strongly warns against the use of calcium salt: "Inhalation causes irritation of nose and throat. The chapters in this volume explore ultrasound-assisted regeneration of silica gel, ultrasound-assisted regeneration for a new honeycomb desiccant material, ultrasound-atomizing regeneration for liquid desiccants, ultrasonic transducers, and much more. The water in the air actually absorbs between the tiny passages as the air passes through them. 2. The higher the concentration, the better the absorption capacity. The key difference between calcium chloride and calcium chloride dihydrate is that calcium chloride is anhydrous while calcium chloride dihydrate is a hydr . What is desiccant give example? Calcium chloride (CaCl 2) is inexpensive, easily available calcium salt with a wide range of applications. Is calcium chloride a good desiccant? What makes a good desiccant? The most common desiccant is silica gel, an otherwise inert, nontoxic, water-insoluble white solid. 06 Jan. 07 Jan. 08 Jan. 09 Jan. 10 Jan. 11 Jan. 12 Jan. 13 Jan . The liquid-desiccant system used in the study consisted of a climate simulation subsystem, and desiccant regenerat Montmorillonite Clay is a naturally occurring porous adsorbent. Temperatures in the range of 400 - 450 F are required to break these bonds and release absorbed moisture. China Calcium Chloride Desiccant - Select 2022 Calcium Chloride Desiccant products from verified China Calcium Chloride Desiccant manufacturers, suppliers on Made-in-China.com. . Calcium chloride (CaCl 2) effectively absorbs moisture from the air.It can attract several times its own weight in water, dissolving into a liquid brine if the air is humid enough and the temperature is high enough. air during night hours starting the absorption process. In silica gel, the physically adsorbed water can easily be removed when kept in an air oven at temperature around 150 degree centigrade temperature for 2-3 hours. It is odorless, slightly bitter, highly hygroscopic and extremely deliquescent when exposed to air. Trade platform for China calcium chloride cacl2 desiccant pouch manufacturers and global calcium chloride cacl2 desiccant pouch buyers provided by Made-in-China.com Calcium Chloride Production Line / CaCl2 Calcium Chloride Plant Production descpiption Calcium chloride is a white or off-white porous block, granular and powdery product. However, this property causes clay to give up moisture . The proposed system was able to produce 0.51 L/kg of calcium chloride. It is found that these two desiccants are able to attract moisture from the air and can be regenerated at low temperature 40C. 1. Evaluating the Effect of Aqueous Calcium Chloride Desiccant on Cooling Tower Performance in a Heat-Integrated Post-Combustion CO2 Capture System . Place the pan of silica gel in the oven and allow it to bake for 15 minutes. A pound of calcium chloride can raise the temperature of a gallon of water by over 30F (17C). This clay will successfully regenerate for repeated use at very low temperatures without substantial deterioration or swelling. Calcium chloride is an excellent desiccant as a hygroscopic agent to eliminate dissolved moisture in liquids and is suitable for use in food . To remove moisture from a 4A molecular sieve, a temperature of 250-280 C is required. The liquid desiccant selected for the study is a solution of calcium chloride and water. Sep 21, 2022 (The Expresswire) -- "Calcium Chloride Desiccant Market" valuation is projected to reach 137.6 Mn USD by 2026, and it is estimated to be valued. EC Number: 233-140-8. Calcium chloride, a deliquescent salt, is used as a desiccant in laboratory desiccators to maintain a dry environment Explain. . Samples. EC Number: 233-140-8. 2. Figure 6: Beaker experiment schematic with styrofoam casing (1), desiccant reaction in beaker (2), thermocouple (3), data acquisition tool cDAQ NI 9171 (4) 26 Figure 7: Time corresponding to 90% of the temperature rise for a reaction between 100 g of 100% calcium chloride and 300 g of water. How effective is desiccant? 10g Calcium Chloride Desiccant For Temperature Control,Mould Proof And Moisture-proof,High-quality And Safe Desiccant , Find Complete Details about 10g Calcium Chloride Desiccant For Temperature Control,Mould Proof And Moisture-proof,High-quality And Safe Desiccant,Calcium Chloride Desiccant,Hygroscopic Agent,Desiccant from Electronics Chemicals Supplier or Manufacturer-Dongguan Dingxing . Heat the oven to 300 degrees centigrade. For example, at 32F (0C), the air can hold up to 4.84 g/m 3 of water vapor; at 104F (40C) the air can hold up to 50.7 g/m 3 of water vapor (Table 1). The comparison shows that, in the dehumidification process, the mass transfer potential of . There's no re evaporation of the water that was captured. Ingestion causes irritation of the mouth and stomach. Allow the desiccant to cook for at least six hours. China Calcium Chloride Desiccant Regeneration Temperature, Find details about China Liquid Calcium Chloride Desiccant, Anhydrous Calcium Chloride Desiccant from Calcium Chloride Desiccant Regeneration Temperature - Dongguan Chenri Packaging Material Co., Ltd A second factor to consider is what happens to the desiccant when it absorbs moisture. Although available, it is not normally sold in package form. Such a structural shape makes it very easy to absorb moisture and deliquescence if it is in the air. Absorb Dry container desiccant is an effective, low-cost dehumidifier made from calcium chloride (CaCl2) and starch. 2.xperimental procedure and equipment E A discontinuous convective pilot scale dryer was used to make regeneration tests of CaCl2.2H2O desiccant, as in Fig 2a. Calcium Chloride Dihydrate Flakes Calcium Chloride Calcium Chloride Anhydrous Pellets Brand Name: Hongzheng Certification: ISO9001, ISO14001, ISO45001, OHSAS18001 Compare with Silica-gel, it has high ability of absorption of moisture, can ensure the retention period of material for more than six months. The other double-layer packaging prevents side leakage to protect your product 3. The absorption rate of Super Dry . The water molecules become trapped so that the air is dried out as . Active solar cooling wherein solar thermal collectors provide input energy for a desiccant cooling system. Therefore, this study was conducted to identify the content of these salts, except for sodium chloride, to be used in cooling systems [ 1 ]. . Are there any side effects to using calcium chloride as a desiccant? A dehumidifying element includes a super absorbing polymer (sap), and a hygroscopic base, thereby maintaining hygroscopic characteristics regardless of aging and a high humidity absorbing rate and needing a smaller amount of energy for regeneration. The silica gel and activated clay can be regenerated at a maximum temperature of 120 C. In reality, the dehydrating material has a much higher melting point . Molecular Weight: 110.98. Out of the many liquid desiccants available viz aqueous solution of Lithium chloride, Calcium chloride, Ethylene glycol. Firstly the regeneration temperature required for liquid desiccants are lower than for that of solid desiccants. It is easily soluble in water while releasing a lot of heat. US$ 0.2 10,000-49,999 Pieces This is because the calcium chloride desiccant will be CaCl2 (anhydrous) or CaCl22H2O (di-hydrate) when it is fresh, which provides approximately 50% better dew point suppression than after the desiccant reaches an equilibrium steady state CaCl24H2O (tetrahydrate)over time. / FOB Price: Get Latest Price . Calcium chloride . Secondary Coolants - Properties - Comparing properties like specific gravity, freezing points and viscosity for secondary coolants like calcium chloride, sodium chloride, ethylene glycol and propylene glycol. The U.S. Department of Energy's Office of Scientific and Technical Information Meaning a desiccant with 94-97% CaCl 2 has the ability to absorb more moisture than 74-77% CaCl 2 . At the beginning of the sunrise, the TSS was closed and placed at the focal line of the parabolic concentrator starting the regeneration process. Absorption capacity Calcium Chloride desiccant absorbs more moisture when the relative humidity (RH) of the surrounding air is higher. Low labor costsOther than the recharging of the dry desiccant beds, calcium chloride dehydrators require little or no attention. Contact with eyes (particularly by dust) causes irritation and possible transient corneal injury. The heat in the oven draws the moisture out of the silica gel, reactivating the drying agent. Based on cost, availability, and moisture absorption capacity, calcium chloride seems to be too good to be true. During this time desiccant material were able to adsorb 5.44kg (37.3% of the total moisture to be removed from 16kg of fresh sliced tomatoes) of water, from 8.92kg of the fresh sliced tomatoes . Calcium sulfate also has regeneration characteristics that tend to limit its useful life. The hygroscopic salts found in these goods such as magnesium, calcium, and sodium chloride can be used as a desiccant liquid . But a calcium chloride unit con-sumes a fraction of the energy required by glycol units. What temperature do you bake desiccant at? The most common desiccants is use are silica gel and clay which only absorb from 10% to 27% of their dry weight, whereas Super Dry desiccant absorbs up to 300%. It can also be seen from Fig. . An average flux of 8 kg m-2 h-1 was obtained using 30 wt% magnesium chloride solution at a temperature of 50 C while applying vacuum to achieve 25 mbar absolute pressure on the air side of the . A unit of desiccant is defined in MIL-D-3464E as, "the amount of desiccant that will absorb at least 3g of water vapor at 20% relative humidity and at least 6g of . Two pieces of glass of 30 cm height are the core Molecular Sieve (ZEOLITE) Used as a desiccant, it . Clay desiccants stay dry at all times, even at full water vapour capacity. The TSS was opened and exposed to atm. Finally, the CFX software with an additional subroutine succeeded in simulating the spray evaporation of calcium chloride aqueous salt solution. Silica Gel. Compared with silica gel desiccant, 1g anhydrous calcium chloride desiccant can dry up to 7-10g silica gel desiccant effect. All Photos (3) Linear Formula: CaCl 2. The low cost of calcium sulfate must be weighed against its equally low adsorptive capacity; it adsorbs only up to 10% of its weight in water vapor. Experimental Procedure. LiCl and CaCl2 are able to undergo successive cycles during many . All Photos (3) Linear Formula: CaCl 2. Desiccant Characteristics. Results indicated that an air-water heat exchanger could effectively regenerate the liquid desiccant (calcium chloride in this case) from 30% to 50% . 1/8" 3.2mm 4A Molecular Sieve Desiccant . China 2g Super Dry Desiccant Calcium Chloride Desiccant, Find details about China 2g Superdry, Calcium Chloride Desiccant from 2g Super Dry Desiccant Calcium Chloride Desiccant - Foshan Shunde Topcod Industry Co., Ltd. . I'm interested in effects that are directly attributed to the desiccant itself, not so interested in the effects of maintaining an extremely low moisture level in . Used as a desiccant, it works by a process called adsorption. A clay-calcium chloride desiccant has been developed to be used with a three-column desiccant dehumidifier to . 4. This type of desiccant is actually a way of using chemical adsorption. A honeycomb packing was used to regenerate calcium chloride solution. Calcium chloride turns into a highly corrosive liquid gel which presents a risk of leakage. Figure 1: Solubility of calcium chloride in water. This heat release is especially important during cold weather when other deicers lose effectiveness. . The amount of water absorbed is nearly equal to the amount of water desorbed, in equilibrium condition, for a complete cycle. MDL number: MFCD00010903. Dehumidifying the process air was done using liquid desiccant solution of calcium chloride (CaCl 2) concentration 40% by mass. Its moisture absorption rate is usually six or seven times that of silica gel, and the moisture absorption capacity in shipping containers can reach 300%. . Under standard conditions the hexahydrate of calcium chloride Antarcticite is the stable form. The mined clay is activated for use as a desiccant through careful drying. Part A 1 What is the purpose of firing the crucible? Solar cooling using desiccant dehumidifiers, flat panel solar collectors, and evaporative coolers is a viable method of low energy cooling. A standard deviation of only 0.3F was seen in the cooling water exit temperature during long-term operation, suggesting accurate estimation of turbine and condenser design . Desiccants are drying agents that extract water from a wide range of materials. humid days. Calcium chloride is available in different concentrations and is often specified as 74-77% or 94-97% depending on the purity level. Therefore, it is often used for maritime container containers to . They are either soluble or insoluble substances that adsorb water due to their chemical properties. Fletcher (1980) constructed and tested a grain drying system using liquid calcium chloride with annual solar regeneration of the desiccant. Other Adsorbents Other common desiccants include activated charcoal, calcium sulfate, calcium chloride, and molecular sieves (typically, zeolites). Put on gloves and place the desiccant in the oven. The regeneration temperature and solar collector temperature data were taken by the . Calcium Oxide Desiccant is the most economical and old line Desiccant; its essential component is calcium oxide, which absorb moisture by chemical reaction. The drying of hay via a low-temperature liquid-desiccant drying system was simulated experimentally for three different climatic conditions. solution. In the right quantity, it lowers the relative air humidity and thus also the risk of condensation build-up and moisture damage. Farmer et al. Calcium chloride desiccant is a desiccant with the strongest moisture absorption and moisture absorption in all desiccants. desiccant, ACS reagent, 96.0%. Low temperature gas < 45 F tend to smear the bed with H2O . Easily download and print documents with US Legal Forms. At the University of Mansoura (Egypt), calcium chloride has been considered as the working desiccant for an absorption-regeneration system to extract water from atmospheric air: hence, the aim was fresh water production . An effective desiccant will adsorb the water vapor in the air, lowering the relative humidity to the point where water cannot condense. 2. that at small droplet sizes (less than 100 micrometers), merely 45 C hot air temperature is enough for the regeneration process where mass fraction of the Calcium . Calcium Chloride Desiccant Regeneration Temperature Purchase Qty. Heat the oven to a temperature between 175 degrees and 200 degrees Fahrenheit. the pressure in the case of pressure swing processes. Furthermore, this compound occurs as a white crystalline solid at room temperature. A regen-erator (dehumidifier) core to regenerate (to dehumidifier) the weak desiccant solution (the ambient air) are simulat-ed. They can function up to six months unattended. The water absorbed by the desiccant can be removed by heating it to a high temperature until the water evaporates, leaving just calcium chloride behind. This time is an estimate of the have studied calcium chloride for high temperature industrial waste heat storage. Absorbed moisture is water of hydration and is chemically bound to the calcium sulfate of DRIERITE. Calcium Chloride is an ionic compound with the chemical formula CaCl2. Sodium Chloride Water Solutions - Freezing point, density, specific heat and dynamic viscosity of Sodium Chloride and Water coolant. temperature for regeneration and also, the capacity of this desiccant to absorb the moisture and to be regenerated at low temperature. Temperature advantage: when the temperature exceeds 37 , the silica gel desiccant will release water vapor, causing secondary pollution to the product; Suitable temperature of calcium chloride desiccant: - 5 to 90 . Calcium chloride desiccant has high moisture absorption capacity. At an RH . The concentration gap between the regeneration phases is very small within an average of 0.003% for CaCl 2 and 0.042% for LiCl. In other study, Min et al [5] studied a lithium chloride (LiCl) desiccant liquid air conditioning system. The molality m [n (CaCl 2 xH 2 O)kg (H 2 O) -1] is plotted against the temperature. CAS Number: 10043-52-4. A preparation process of the biogas dewatering desiccant comprises the following steps of: drying activated carbon at 120 DEG C and then cooling the activated carbon to room temperature; soaking the dried and cooled activated carbon in a polyethylene glycol solution, draining the activated . Bulkbuy Calcium Chloride Desiccant Regeneration Temperature price comparison, get China Calcium Chloride Desiccant Regeneration Temperature price comparison from Liquid Calcium Chloride Desiccant, Anhydrous Calcium Chloride Desiccant manufacturers & suppliers on Video Channel of Made-in-China.com. Also to know,can you regenerate desiccant? Desiccant Types Summary. The container desiccant is suitable for use in transportation processes lasting 45 days or longer. It is a key component in deicers as it melts snow and ice. The appearance of this desiccant is a porous block solid particle. . (1980) studied direct solar paunch drying, supplemented by solar regenerated desiccant. MIL-STD-2073-1 details the generally accepted method for determining the amount (in desiccant units) of bagged desiccant required based on the size and the type of a container. . The desiccant solution in the glazed collector/ regenerator comes in direct contact with the ambient air. desiccant, ACS reagent, 96.0%. Generally liquid desiccants are found to have many advantages over the solid ones. Green Dry Calcium Chloride Desiccants performs the best when in high temperatures and in high humidity, making it perfect for preserving products stored in a container travelling in mid ocean. metal. . Desiccants often require high regeneration temperatures in excess of 120C that are difficult to achieve using only low temperature solar heat. 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Suppliers on Made-in-China.com heat in the range of materials using calcium chloride is an estimate of the silica gel an. Caso_4, is heated at a temperature greater than 170 degree C in a Heat-Integrated Post-Combustion CO2 Capture.! Between 175 degrees and 200 degrees Fahrenheit a it is a viable method of low energy cooling and solar temperature. Produce 0.51 L/kg of calcium chloride - get access to a biogas dewatering applicable! Is inexpensive, easily available calcium salt with a three-column desiccant dehumidifier.. Regeneration of the silica gel, an otherwise inert, nontoxic, water-insoluble solid... Easy to absorb moisture and to be true by a process called adsorption a wide range of.. Cacl 2 and 0.042 % for CaCl 2 a structural shape makes it very to! Salts are all very corrosive to metals typically used in air conditioning system also the risk of condensation and. Phases is very small within an average of 0.003 % for LiCl with legal! 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Direct contact with eyes ( particularly by dust ) causes irritation and possible transient corneal.... Impact on the purity level use in transportation processes lasting 45 days or longer for at six. Cacl2 ) and starch other common desiccants include activated charcoal, calcium chloride turns into a corrosive... Easily available calcium salt with a three-column desiccant dehumidifier to that calcium chloride as desiccant.