Pyrolysis Gasoline Second Stage Hydrofining Catalyst
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-1. Introduction
LSCII-1 is a new hydrofining catalyst used in the second stage hydrofining of raw gasoline (C6—C8) generated from pyrolysis process for ethylene production to meet the need of extracting arenes.
-2. Physical Properties
Items DZCII-1
Appearance and Shape: Blue denti-ball
Chemical composition: MoO3— CoO— NiO/modified Al2O3
Crushing strength, N/granule: ≥ 35.0
Bulk density, g/ml: 0.75~0.90
Size, mm: 2.0— 3.5
-3. Performance
(1) Operation conditions: Pressure is 2.0~5.0Mpa, H2/Oil ratio(volume) is(200~500): 1, LHSV is 2.0~4.70/h, initial inlet temperature is 200~240 degree Celsius, H2 purity is no less than 85%.
(2) Feedstock: Bromine value is no less than 77gBr2/100g, gum content is no larger than 500mg/100ml, Arsenic is no larger than 50ppb, dienes/diolefins are no larger than 24.0g I2/100g
(3) Product: Dienes/Olefines are no more than 0.1g I2/100g, Bromine value is no more than 0.5gBr2/100g oil.
(4) With no obvious property changes, the catalyst can be used for more than four years without regeneration.
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