Brand Name: Akrosorb.
Akron Healthcare has excelled in the field of manufacturing and developing Co2 Absorbent (Soda Lime) as per different standards. A unique Co2 Absorbent, Akrosorb has proved itself better than the classical and various other Co2 Absorbents present in the market. This success has been achieved after extensive R&D and Market Analysis on Soda Lime for 20 years.
What is Akrosorb
Soda lime is a Carbon Dioxide absorbent used for removal of CO2 mainly from breathable gases, in medical, military,diving,mining and safety applications.
Akrosorb (Soda Lime) is a versatile CO2 absorbent for removal of carbon dioxide and other acidic contaminants from gas streams. Akrosorb (Soda Lime) is an active compound of mixture of hydroxides. This active compound is formed by mixing calcium and sodium hydroxides that has high affinity for Carbon Dioxide. It is supplied as hard, porous, irregularly shaped granules or uniform shaped granules (as per customer specifications). These granules have been processed to maximize Co2 Absorption and minimize dust formation.
Akrosorb is available in a number of different grades, depending on the application.
State of art manufacturing process used for Akrosorb ensures that dust formation is minimized and no blockage of canister mesh or circuit piping takes place.
Akrosorb ensures best performance by minimizing hindrance to flow of gases.
No problem of dust contamination arises to the user and equipment,
MEDICAL, MILITARY,DIVING,MINING, and SAFETY APPLICATIONS.
Akrosorb (Soda Lime) is used to absorb expired CO2 during Anesthesia (in operation theatres).
It is used for removing Carbon Dioxide from oxygen-based metabolism, in estimation respirators, breathing apparatus, diving rebreathers.
Akrosorb (Soda Lime) removes CO2 from manned closed atmospheres, such as submarine, and closed circuit breathing apparatus, such as rebreathers.
It is extensively used in navies, for use by divers in submarines.
Akrosorb (Soda Lime) has its major applications in breathable gas applications where CO2 levels need to be controlled, for example in medical anesthetic breathing circuits, mines, commercial and leisure diving rebreathers, or in submarines.
In these applications, the breathable air is recirculated for re-use and therefore any exhaled carbon dioxide needs to be removed in order to prevent a build-up of carbon dioxide to toxic levels.
Akrosorb granules are hard enough to ensure that the granules do not break down under high humidity conditions and remain in perfect condition to use without any degradation.
Akrosorb is available in two forms:
Granules do not change color on absorption of CO2.
Changes color on absorption of CO2.
Indicating Type Soda Lime is available in 2 forms:
Particle size and shape are particularly important in terms of the performance of Soda lime in its intended application. All Akrosorb grades are irregularly sized granules, with low dust and excellent attrition resistance.
Akrosorb is also available in uniform shaped granules and pellet shaped granules depending on the intented application and customer specification.
Akrosorb (Soda Lime) is produced with an irregular shaped profile giving higher surface to volume ratio compared with other classical soda lime products. Technically, the irregular shaped profile ensures maximum CO2 penetration into the particles, by minimizing the distance to the center of the particle, thereby increasing the C02 capacity of the product.
Intrinsic capacity measurments have demonstrated that Akrosorb has significantly higher capacity for carbon dioxide absorption compared with other Soda Lime products.
Other Particle Shapes:
For certain applications, the profile of the particles is circular/cylindrical or as per customer specifications in order to achieve specific performance for that application. The water content can also be varied depending on the application.
The point to be ensured is that the shape of the granules should maximize CO2 absorption and minimize dust formation.
Another key factor in the performance characteristics of Soda lime is the particle size distribution.
Particle size has an effect on the speed of reaction, which in turn affects the volume of the reaction zone and the capacity of the absorber containing the Akrosorb. In general terms, the smaller the particle size, the faster the reaction and the smaller the reaction zone volume. However, the smaller the particle size, the greater the pressure drop across the absorber which in some applications (particularly breathing applications such as diving rebreathers and medical anaesthesia) is a critical factor in absorber design. Therefore a well design particle shape/size will look to optimise these effects - an area where Akroncare has proved extremely proficient.
In summary, compared with other classical soda lime products, Akrosorb has a high absorption capacity for carbon dioxide, low dust levels, and excellent attrition resistance.
Akrosorb (Soda Lime) has a well-designed particle size that optimizes the reaction time, reaction zone volume and the pressure drop across the absorber.
Akron Healthcare provides high level of technical support, according to the needs of the customer. Based on extensive experience we can offer assistance with the sizing and design of Soda Lime.
Compared with classical Soda Lime products, Akrosorb (Soda Lime) has a high absorption capacity for carbon dioxide, low dust levels, and excellent attrition resistance.
We follow strict control, and batch acceptance criteria. Our soda lime test methods also conform to pharmacopoeia standards. Akrosorb (Soda Lime) is manufactured under rigorous Statistical Process operations and is governed by Standard Operating Procedures, which form the basis of our quality system.
Chemical Properties of Akrosorb (Soda Lime)
The primary constituents of soda lime include:
Calcium Hydroxide - Ca(OH) 2
Water - H2O
Sodium Hydroxide - NaOH
Typical Product Specifications
Description: Carbon Dioxide absorbent in form of granules
Calcium Hydroxide - Ca (OH)2 : 70 - 80%
Sodium Hydroxide - NaOH : <3.5%
Moisture - H20 Content: 12-19%
Mesh Size: 4-8
Granule Size: 2.5-5.0 mm or 4.0-8.0 mm (Or as per Customer Specifications)
CO2 Absorption: >100 lt./kg
Indicator: Pink to White or White to Voilet (On CO2 Absorption)
250Gms / 500 Gms / 1Kg / 2Kg / 4Kg / 4.5Kg / 5Kg in an air tight plastic, wide mouthed squarish container, with handle worthy of transporting anywhere in the world.
25Kgs / 40 Kgs / 50 Kgs in Fiber / Plastic Drums worthy of transportation anywhere across the globe.
170Kg in Metal Drum.
Customized Packing Facility (CPF) as per CustomerÃƒÆ’Ã‚¢Ãƒ¢Ã¢â‚¬Å¡Ã‚¬Ãƒ¢Ã¢â‚¬Å¾Ã‚¢s Specifications also available.
We can Supply Soda Lime in a variety of Packing Sizes suitable for the majority of hospital, military, and naval operated rebreathers. Our product is specifically formulated to offer optimum CO2 absorption efficiency, ease of use and value for money.
Medical Application of Soda Lime
Medical grade Soda Lime is produced as per pharmacopoeia (IP/BP/USP) standards. Medical grade Soda Lime is a carefully controlled mixture of Calcium and Sodium Hydroxides, in the form of irregularly sized particles. High Carbon Dioxide absorption capacity of medical grade Soda Lime is due to its particle shape. The particles are extrudates with an irregular shaped profile, giving a higher surface to volume ratio compared with other soda lime products.
The granule shape profile can be modified depending its intended application and/or as per customer specifications. This includes pellet shape, cylindrical shape, regular shape etc.
Akrosorb (Soda Lime) is used to absorb expired Co2 during anesthesia (in operation theatres).
Akrosorb (Soda Lime) is a carbon dioxide absorbent of choice for major hospitals across the world.
The major applications of Soda Lime are in breathable gas applications where carbon dioxide levels need to be controlled, for example in medical anesthetic breathing circuits. In these applications, the breathable air is recirculated for re-use and therefore any exhaled carbon dioxide needs to be removed in order to prevent a build-up of carbon dioxide to toxic levels.
Akrosorb has application in Anesthetic systems in the medical operations to remove expelled Carbon dioxide due to respiration carried out by the patient or the user.
Akrosorb (Soda Lime) is used in medical applications for removal of carbon dioxide from breathable gas in anesthesia circuits and in hyperbaric oxygen treatment chambers.
The particle shape is key to the high carbon dioxide absorption capacity of medical grade Soda lime. The particles are extrudates with an irregular shaped profile, giving a higher surface to volume ratio compared with other soda lime products. In addition, the irregular shaped profile ensures maximum CO2 penetration into the particles, by minimizing the distance to the centre of the particle, thereby increasing the CO2 capacity of the product. It absorbs carbon dioxide in oxygen based therapy based metabolism, in closed circuit anesthesia, in estimation respirators, breathing apparatus etc. Exhaled gases are circled back to the canister where Co2 absorption takes place and water and heat are produced. The warmed and humidified gas joins the fresh gas flow to be delivered to the patient.
Diving and Safety Applications
Gripo Sorb (Soda Lime) removes carbon dioxide from the exhaled breath of a diver using a rebreather. Gripo Sorb (Soda Lime) has special characteristics that make it one of the best CO2 absorbents for use in rebreathers.
Application in Military (Submarines)
Gripo Sorb (Soda Lime) is used in navies, for use in submarines and by divers.
Gripo Sorb absorbs carbon dioxide in helium-oxygen breathing systems, hyperbaric chambers and scuba apparatus.
In diving applications, Gripo Sorb is used to maintain carbon dioxide below harmful levels in both closed-circuit rebreathers and in saturation dive systems for commercial deep sea diving.
Gripo Sorb (Soda Lime) is used for removing Carbon Dioxide from Diving Rebreathers.
Gripo Sorb (Soda Lime) is a chemical technology for removal of Carbon Dioxide from manned enclosed atmospheres, such as submarine, and closed circuit breathing apparatus, such as rebreathers.
The major applications of Soda Lime are in breathable gas applications where carbon dioxide levels need to be controlled, for in commercial and leisure diving rebreathers, or in submarines. In these applications, the breathable air is recirculated for re-use and therefore any exhaled carbon dioxide needs to be removed in order to prevent a build-up of carbon dioxide to toxic levels.
Gripo Sorb finds application in naval and tourist vessels, submarines etc.
Akrosorb finds application in Military and Commercial Rebreather sets to take away exhaled CO2.
Submarines have a complex air filtration system, essential for maintaining the atmosphere within the submarine suitable for breathing whilst submerged. The carbon dioxide scrubbing system removes the CO2, generated via respiration, by constant circulation through a scrubber system filled with Akrosorb (Soda Lime).
Akrosorb absorbs CO2 in personnel rebreathers for mine (minerÃƒÆ’Ã‚¢Ãƒ¢Ã¢â‚¬Å¡Ã‚¬Ãƒ¢Ã¢â‚¬Å¾Ã‚¢s gas mask), fire and other safety systems
It is also used in oxygen-based metabolism, in estimation respirators, breathing apparatus etc.
Akrosorb (Soda Lime) can be used in petrochemical industry for removal of trace acidic contaminants (CO2) in the production of high purity hydrocarbons such as propylene and ethylene.
FAQ's (Frequently Asked Questions)
What is Akrosorb?
In appearance, Akrosorb is a dry granular material. It contains mostly calcium hydroxide (lime) and a small amount of sodium hydroxide. It is manufactured in a form that is hard, to minimise dust formation, and has a structure and shape optimised to allow good contact and absorbance of gasses. Although it appears to be a dry granular material it can contain up to 19% moisture/water. It is used to absorb carbon dioxide for medical, diving, mining, and other closed circuit breathing systems as well as absorption of other acidic gasses in breathing and industrial applications. It chemically reacts with the gasses it absorbs and converts them to solid calcium salts, which cannot then be desorbed. When Akrosorb is used to absorb carbon dioxide the calcium hydroxide (lime) is converted to calcium carbonate (chalk), which can be disposed of easily and safely to landfill.
What is the difference between the different grades of Akrosorb?
Akrosorb is made in a variety of different grades for specific applications. The size, water content and particle shape can be changed to provide products optimised for different applications. Smaller particles can provide more absorption capacity, but at the expense of increased resistance to flow for the same depth of absorber material. Different dyes can be incorporated to indicate the extent of exhaustion capacity of a bed. In medical use a white to violet or a pink to white colour change are the two most widely used products. Clearly there is little advantage in using an indicator dye in a system where the dye cannot be seen, such as a diving set. The water content is important, as water is necessary for the reaction to occur at the surface of the Akrosorb. If too little water is present the reaction is slow and an unnecessarily large contact time is required. If too much water is present then the internal structure of the solid particles becomes flooded and capacity is reduced. This is further complicated by the fact that, for carbon dioxide absorbance, the reaction actually produces more water. The shape and size of the particles effects the way the material packs together (the bulk density), the absorption capacity, the speed of absorbance, resistance to flow and the chances of dust production during handling and use. It is therefore important that the correct grade is used for your application.
What is the capacity of Akrosorb for carbon dioxide?
The carbon dioxide capacity of Akrosorb depends on the gas and the way it is used. For each gas there is a minimum contact time necessary for reaction to occur. If the contact time is less than this minimum all the target gas at the inlet will not be removed before it gets to the outlet. As the bed gets used the available contact time with unreacted Akrosorb will decrease until such time as there is insufficient time for complete reaction. The minimum absorption capacity for the various grades is shown in the Akrosorb specification.
How important is dust in Akrosorb?
Dust should be avoided at all times. It may contaminate the circuit and valves and hence is a major quality issue. Dust can be avoided by carefully handling and transporting Soda Lime with handling instructions conveyed to the logistics company. Careful handling and storage measures should be undertaken by users of Akrosorb in order to avoid dust formation. Dus must be avoided while filling the rebreathers/absorbers with Akrosorb.
Why is irregular shaped AKROSORB WIDELY PREFERRED?
The important issue here is the morphology which is the surface area to volume ratio. In theory a spherical ball gives the largest surface area to volume ratio since the distance to the middle of the granule is the same all the way around. However, the way the material packs is also important and it is found that with spherical materials you get channeling which results in uneven flow of gas through the material. Overall a irregular shaped material offers the optimum for both the maximisation of surface area to volume ratio and minimization of channeling effects.