CATALYTIC REFORMING Process,Catalysts and Reactors

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• Reforming catalysts are bimetallic catalyst consisting of platinum plus promoters on an alumina support, Rhenium <strong>and</strong> Tin being essentially one of the promoter besides the others. • The main features of these catalysts are : o High purity alumina support - High mechanical resistance o Platinum associated with Rhenium - high stability & selectivity o Platinum associated with Tin – high selectivity o High Regenerability Catalyst • The combination of these qualities give the following advantages: o High Reformate yield o High hydrogen yield o High on - stream factor o Low catalyst inventory Catalytic Reforming 64
Catalyst ‣Platinum (Pt) plus other promoter(s) impregnated on to gamma alumina containing around 1% wt chloride to provide acidity. ‣Since 1967, bimetallic catalysts have been widely used. ‣The second metal comes from the group Rhenium (Re) Tin (Sn) Iridium (Ir) Germanium (Ge) Catalytic Reforming 65
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Axens India Private Limited (Privat
Page 3 and 4:
Introduction World context: Low sul
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Introduction Gasoline Pool specific
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Introduction Constraints from strai
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Outline • Fundamentals of Catalyt
Page 11 and 12:
Purpose of reformer Purpose of refo
Page 13 and 14: Chemical Reactions Catalytic Reform
Page 15 and 16: Desirable reactions with hydrogen p
Page 17 and 18: Desirable reactions with hydrogen p
Page 19 and 20: Adverse reactions • Hydrocraking
Page 21 and 22: Adverse reactions • Hydrogenolysi
Page 23 and 24: Adverse reactions • Alkylation -
Page 25 and 26: Adverse reactions • Coking - Resu
Page 27 and 28: Catalyst Distribution • Highly en
Page 29 and 30: Chemical reactions - The catalyst d
Page 31 and 32: Fixed bed reformer • The most fre
Page 33 and 34: Dualforming Texicap+ RG682 1 2 3 C
Page 35 and 36: Continuous Catalytic Regenerative R
Page 37 and 38: RegenC Combustion Gas from Dry Loop
Page 39 and 40: Processes Variables Catalytic Refor
Page 41 and 42: Process variables • Each of them
Page 43 and 44: Pressure • Pressure is the basic
Page 45 and 46: Temperature Catalytic Reforming 45
Page 47 and 48: Temperature • An increase of temp
Page 49 and 50: Space velocity • Weight hourly sp
Page 51 and 52: Hydrogen to hydrocarbon ratio Catal
Page 53 and 54: Hydrogen to hydrocarbon ratio • O
Page 55 and 56: Feed quality Chemical composition
Page 57 and 58: Operating Parameters Summary • He
Page 59 and 60: Catalyst The main characteristics o
Page 61 and 62: Catalyst • In the 90’s Procatal
Page 63: Catalyst • To improve the catalys
Page 67 and 68: Stability • Normal causes for cat
Page 69 and 70: SUMMARY - EFFECT OF SECOND METAL
Page 71 and 72: Pilot test results Low pressure pil
Page 73 and 74: Catalysts Poisons Catalytic Reformi
Page 75 and 76: Catalyst Contaminants (Contd…) Pe
Page 77 and 78: Typical Axial Fixed-Bed Reactors Ca
Page 79 and 80: Typical Radial CCR Reactor Feed Cat
Page 81 and 82: Typical Radial Fixed-Bed Reactors B
Page 83 and 84: Catalyst Sampler Refilling Sampling
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CATALYTIC REFORMING Process,Catalysts and Reactors

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