Activated Alumina Ball - Ad-101

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GMGB manufactures activated alumina beads in two sizes: 2-5 mm dia, and 5-8 mm dia by the State of the Art technology. The products have at least equal to and, in some cases, better properties than what have been specified in the Bureau of Indian Standards: BIS 9700 (Revised 1991). Specifically it has very high water adsorption capacity, and mechanical strength, and at the same time very low attrition loss. Its main application is in air drying; however, it may be used favourably for purification of drinking water (fluoride removal), and removal of acidic vapours from gases. The robust nature of the product makes it suitable for application in high pressure. GMGB Activated Alumina is designed to give a dew point of at ~east 40°C in most conditions. However, in case of rigorous adsorptive drying under high pressure, the moisture content in the exit gas or air may go down to less than 1 ppm (i.e. a dew point of -70°C and better.)

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Specifications GMGB

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Particle form Particle size

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Adsorption Capacity at 30°C And 60% RH by wt (%) Surface Area (m2/gm) (min.) Pore Volume (cc/gm) Bulk Density (gms/lit.) Bed Crushing Strength (%) Loss on attrition (%) Loss on Ignition (250°C-1000°C) Free Moisture (%) Size Tolerance (%) (OversIze/undersize) Chemical Analysis (%) AhO3 (by difference) NazO FezO3 Sial

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Spheres 2-5 mm and 5-8 mm dia balls Typical Range 21.0 20-26 380 0.42 800 97 0.20 6.0 0.5 2

360-430 0.4-0.5 750-850 90-99 0-0.4 4.5-8.0 0-2 0-5

93.0 0.25 0.05 0.08

92-95 0.1-0.3 0.02-0.12 0.02-0.12

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Surface Area by benzene adsorption method. The values are lower when measured by BET nitrogen method (300-320 m2/gm). Owing to carcinogenic threat to environment, safe method of nitrogen adsorption is adopted. For spheres of more than 5 mm diameter the specific surface and water adsorption capacity values are approximately 10% lower than the above figures.

Packiof: Activated AhlInina is packed forindustrial use in airtight MS drums under hot condition. with proper sealing arrangement so that there is no ingress of moisture during storage and transportation. Standard Packing: 210 Lit drum size 565 x 850 (N) mm.

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Life:

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Activated Alumina has infinite shelflife, when stored in packed condition. The active service life would depend,bowever, on.the operating conditions of the plant, acfualapplication, and the usage by the customer.


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PORE RADIUS r (AU) PORE SIZE DISTRIBUTION FOR ACTIVATED ALUMINA GRADE AD -101

Loading.;. Activated Alumina does notreqllire any specialprecaution or procedure during loading. However, thehealthofthe grid supportis to be checked, and the vessel is to be cleaned of dust, foreign particles, etc. before the adsorbent is loaded. During actual loading, the material should be poured carefully through funnel and chute so as to avoid dusting and attrition. The drums should not be kept in opencondition,as the adsorbentwouldadsorbmoisture.In Caseofprolonged exposure of the adsorbenttomoisture during storage /loading, it may require prolonged regeneration at higher temperature to restore its full adsorptive capacity.

MaterialSafetyData: The product as such is neither inflammable, nor toxic. Over all, it is not hazardous. Repeated exposure may irritate skin, eyes and respiratory system. The product gets hot as it istirst exposed to atmosphere due to adsorption of moisture.

Ref:eneration: Activated Alumina should be regenerated before first use. The regeneration temperatures range from 1100 to 150° C. The higher the regeneration temperature, the longer the.operating cycle time and the lower the exit dew pointofthe gas. Where high efficiency is needed( dew point better than 50°C), a regeneration temperature of at least 150°Cis required. If the regeneration gas is wet, a higher regeneration temperature of 200°-250°Cis required. For a better performance over prolonged period, GMGB's Activated Alumina should not be exposed to temperatures above 350°Crepeatedly. Applications: L Air Drying for DewPointofless than (minus) 40° C 2. Drying of Feed Air to N2-O2Cryogenic Plant 3. Purification of Process Stream by removing NF (LAB Plant), Chloride / HCI from Contaminated gas flow.

Marketing Offi.ce

GujaratMulti

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Gas Base Chemic:alsPvt. Ltd. Opp. ONGC Nagar, Palavasana, Mehsana-384 003 (Guj),India. North Gujarat.INDIA Tel.: +91-2762.251265- 251270 Fax: +91-2762 -.252582 Email: manekmin@sancharnetin Email: [email protected]

MUMBAI C-11, 3rd Floor, Krishna C.S.H. Ltd, Subhash Raod, Nr. ExPress Highway, Vile Parle (East) Mumbai-400 057 Ph.: (022)30979944, 31075328 E-mail:[email protected], [email protected] AHMEDABAD 8-B, f\javdeep Appartment, B/H. C.U. Shah Collage, Ashram Road, Ahmedabad-09 Ph.: (079) 27544318 Fax: (079) 27544314