DESIGN REVIEW POLYCONDESATION... DESIGN REVIEW POLYCONDESATION... Model Fluid Trials... Model Fluid Trials... Spray rod in Spray rod Removable Spray Nozzle:... Oligomer deposits in spray
Trang 1UIF lesson: Polyester
M artin Hittorff
Trang 2Finisher
Melt filtration &
Chip production storage &
2R - PET Technology
Trang 3(Polycondensation)
Trang 4® M
i V = 0.62 Ester 1 Ester 2 Prepoly
® M
Option FTR
NEW PROCESSES DEFINITION
Trang 6PFD; POLYCONDESATION
Trang 7DESIGN REVIEW POLYCONDESATION
Trang 8DESIGN REVIEW POLYCONDESATION
Trang 9No dead spots &
Residence time 90
Product on discs ~ 45 50 %
Trang 10Product temperature 282 ° C 286 °
Pressure < 1.0 mbar
Trang 11M arriage MV Reactor 400 mt/d
Trang 13Model Fluid Trials
Trang 14anticlockwise
Trang 15CFD Simulation
Trang 16Model Fluid Trials
Trang 17STRIPPER RODS
Trang 18STRIPPER RODS MEDIUM IV
Trang 19LV 500 mt/d
Trang 20)
Trang 21LV Reactor 600 mt/d in workshop
Trang 22EG Spray system
Trang 23Recycling of "good" oligomers
Trang 241 stage for PE, 2 stage for PP &
overflow backwards
Trang 25[mm]
Trang 26Maintenance - friendly
Trang 27Condenser:
Trang 28REM
Trang 29Spray rod (off-position)
Trang 30Spray rod in Spray rod
Removable Spray Nozzle:
Trang 31Oligomer deposits in spray EG circulation system
Trang 3222E43
Trang 33DEMISTER PP 20E36 DISCAGE 22E46
Trang 34SYSTEM
Trang 35HOTWELL
Trang 37Pump suction side
Trang 38Collecting compartment
Trang 39EG Distribution
Trang 40EG OVERVIEW
Trang 41DISCAGE
Trang 42See ESPREE Tower Reactor.ppt
Trang 43vacuum system
Trang 4410
Up to 660 tpd
Trang 45Surface condenser 2 WCL on pipe side
Trang 46PFD; Vacuum System
Trang 47Discharge cone
Trang 48Operating Principle of Steam Jet Vacuum Pumps
Trang 50WCL inlet temperature is 25°
Temp rise from process is 10°
WCL outlet (condensing) temp = 35 °
35 ° C corresponds to a condensing pressure of 56 mbar
A lower condensing pressure of, for example, 42.5 mbar
30 ° C would require duplication of the cooling water consumption
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Operating Principle of Steam Jet Vacuum Pumps
Trang 51WCL inlet temperature is 33°
Temp rise from process is 9°
WCL outlet (condensing) temp = 42 °
42 ° C corresponds to a condensing pressure of 82 mbar
A lower condensing pressure of, for example, 64.5 mbar
37.5 ° C would require duplication of the cooling water consumption
Operating Principle of Steam Jet Vacuum Pumps
Trang 52Heated Heated
FI
Trang 53Vacuum System 1 Stage Ejector DISCAGE
Trang 54Heating Jacket
Trang 55What's wrong here?
Trang 56Wrong Material of head of ejector of the vent group
Trang 57unsteady
Trang 58More steady
Trang 59stripper
Trang 60Stripped water as reflux to process column
Trang 61=> AA accumulation
Trang 6224D53 Hot Well Vacuum
Trang 63/h