3.1 Primary steam reforming catalyst
3.1.1 Feature and application
Hydrocarbons-Steam Reforming Catalyst is one kind of catalyst taking the nickel as its active component, the aluminum oxide for the carrier, mainly used in the methane hydrocarbon gas primarily for raw material (for example natural gas, oil gas and so on) a section of steam conversion system. It is usually suitable for atmospheric pressure up to 5.0MPa. The product can be applied in the CO2 -natural gas reforming plants.
3.1.2 Chemical and physical paramater
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NiO
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≥14.5wt%
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SiO2
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≤0.2 wt%
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Fe2O3
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≤0.35 wt%
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physical
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properties(typical)
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Model
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Z118-4Y
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Z118-5Y
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Appearance
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Grey 3-hole3 flute cylinder (domed)
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Grey 4-hole 4 flute cylinder (domed)
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diameter
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14mm
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17mm
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length
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11mm
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17mm
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Internal hole diameter
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4.5mm
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4.5mm
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Loaded density
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1000-1100 Kg/m3
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1000-1100 Kg/m3
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Average crush strength (radial)
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≥250 N
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≥250 N
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Low intensity percentage particles
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≤5.0%
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≤5.0%
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Specific surface area
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3.0-5.0 m2/g
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3.0-5.0 m2/g
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Other sizes is available according to the user need the catalyst
3.1.3 Operating condition
Temperature: 1050～450℃
Steam/carbon ratio: 2.5～5.0
Operating pressure: normal pressures~5.0MPa
Space velocity (carbon) ≤2300 h-1
Inlet requirement: H2S≤0.5×10-6(0.5PPm)
3.2 Secondary reforming catalyst
3.2.1 Features and application
Z207Y catalyst is mainly used for secondary steam reforming process producing synthesis ammonia, methanol, hydrogen, raw material should be light hydrocarbon gas like nature gas, coke-oven gas, coking dry gas, oil field gas and etc.
This catalyst has excellent thermal resistance, and high crush strength.
Z205 as thermal protection agent, could be used along with Z207Y, which will promote the reaction effect in furnace.
3.2.2 Chemical and physical parameter
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Item
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Z205
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Z207Y
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Appearance
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Grey rasching ring
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5 holes 4flute (Domed)
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Size (ΦOD×ID×H)
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Φ25×10×15
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Φ19×18～20
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Bulk density (Kg/L)
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1.0±0.05
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1.0±0.05
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Crush strength (N/pcs)
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≥400
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≥400
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NiO(%)
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≥6.0
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≥14.0
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SiO2(%)
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≤0.2
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≤0.2
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K2O+Na2O(%)
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≤0.2
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≤0.2
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CaO(%)
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0
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≤10
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Loss of ignition(%)
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≤7
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≤7
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