1 PPT-47, NOBLE METAL CATALYST

Typical off-gas composition Formaldehyde
Neopentylaldehyde
Isobutylaldehyde
Pentylglycol
Perstorp Polyols: NEO plant Sweden loaded 1996
Flow rate 1800 Nm3/h
Gas hourly space velocity) 3600 h-1
Actual catalyst lifetime ~50.000 h
Perstorp Polyols: Penta plant Sweden loaded 1996
Flow rate 1200 Nm3/h
Gas hourly space velocity 6000 h-1
Actual catalyst lifetime ~50.000 h
Perstorp Polyols: Penta plant USA loaded 1996
Flow rate 1200 Nm3/h
Gas hourly space velocity 6000 h-1
Actual catalyst lifetime ~50.000 h


2 METOX, BASE METAL CATALYST

Typical off-gas composition Formaldehyde
Methanol
Butyladehyde
Perstorp Polyols: TMP plant Sweden loaded 2000
Flow rate 1300 Nm3/h
Gas hourly space velocity 18000 h-1
Typical catalyst lifetime ~25.000 h


3 DUAL BED SITOL & METOX, NOBLE AND BASE METAL CAT

Typical off-gas composition Formaldehyde
Methanol
Phenol
Acetone
MEK
Palm Almgren Resins AB Sweden loaded 2000
Flow rate 6000 Nm3/h
Gas hourly space velocity 8000 h-1
Typical catalyst lifetime ~25.000 h