Contamination of Molecular Sieve

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Cracked Gas Dryers• Comparison of Breakthrough TestParameterMol sieve typeVessel AMol Sieve X1/8” and 1/16”3 ÅVessel SMol Sieve Y1/8” and 1/16”3 ÅDate of b’thru test Mol sieve life of 4 months Mol sieve life of 7 monthsFeed rate 59.6 ton/h 58 ton/hWater content 787 ppmv 900 ppmvAdsorption time 83.5 hours 76 hoursAdsorptioncapacity13.78 gH 2 O/100g molsieve13.92 gH 2 O/100g molsieveMol sieve life 42 months to date 18 months to date
Cracked Gas Dryers• Operating Conditions (Regeneration Step)• Regeneration periodof 48 hours• Design regenerationconditions are:* Depressurised to 4kg/cm 2 g* Heat to bedtemperature of 200°C* Regen gas flow rate is6 tons/hDRAININGDEPRESSURIZINGCOLD PURGEWARM PURGESTANDBYREPRESSURIZECOOLINGHEATING
Page 1 and 2: Molecular SieveApplicationsPRESENTE
Page 3 and 4: Introduction - Molecular SieveAdsor
Page 5 and 6: Synthesis and Preparation ofMolecul
Page 7 and 8: Adsorption Principles• When sever
Page 9 and 10: “Dynamic” Adsorption• Water v
Page 11 and 12: “Dynamic” AdsorptionSaturated m
Page 13 and 14: Regeneration Methods* Inert purge s
Page 15 and 16: Cracked Gas Dryers• Process Flow
Page 17: Cracked Gas Dryers• Operating Con
Page 21 and 22: Liquid Dryers• Process Flow Diagr
Page 23 and 24: Liquid Dryers• Operating Conditio
Page 25 and 26: Liquid Dryers• Operating Conditio
Page 27 and 28: Hydrogen Dryers• Operating Condit
Page 29 and 30: Hydrogen Dryers• PerformanceParam
Page 31 and 32: Services ProvidedComparison is made
Page 33 and 34: Molecular Sieve LifeDegradation of
Page 35 and 36: Contamination of Molecular Sieve•
Page 37 and 38: Thermal Effects (Safety Aspects)Tem
Page 39 and 40: Conclusion• Have used molecular s

Contamination of Molecular Sieve

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