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Customer:
Methanol Plant
Location: Harbin
Original Design Capacity: 40 kt/a
Pre-fraction Column: ID1000mm, 40 trays, tray
type: bubble cap
Main Column: ID1600mm, 75 trays, tray type: sieve
plate
Objective:
Increase capacity from 40kt/a to 60kt/a
Solution:
  Adopt
ADV Valve trays
Only
replace tray decks
Reused
existing downcomer, support ring and seal pan
Result:
Capacity
is increased to 670 kt/a
Reflux
ratio of main column reduces from 2.3 to less than 2
Total
alcohol in waste water reduces from 0.2% to less than
0.1%
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