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<313132362DC3D6C1BEC6EDC1FD2D342E43344D4D4120B0F8C1A420B1E2BCFAC6EDB6F72E687770>1.1
MMA
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1 1.2
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1
2. MMA 2.1 MMA
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2 2.2 MMA Block Flow Diagram
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2.3
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4 2.4 MMA
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5
3. MMA 3.1
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22 3.2
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24
4. MMA 4.1 ······································· 37 4.2
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5. 5.1
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42 5.2 P&ID
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63
CONTENTS6. 6.1
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69 6.2
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69 6.3
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72 6.4
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72 6.5 HB MAA
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6.6 MACR
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74 6.7 MAA
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74 6.8
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74 6.9
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75
7.
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76
1 MMA
1.1 MMA MMA(Methyl Methacrylate) (, , ), (, , ), (, , ), ACH(, , ,
) , . MMA PMMA(Poly Methyl Methacrylate) , , , , . PMMA MMA , , , ,
.
< 1-1> (T/Y)
MMA LG-MMA() ()
95 15
1.2 MTBE : Methyl Tert-Buthyl Ether MMA : Methyl Methacrylate PMMA
: Poly Methyl Methacrylate MACR : Metacrolein MAA : Metacrylic Acid
ACH : Acetone Cyanohydrin HB : Heptane, Buthyene TPA : Phthalic
acid HQ, : Hydroquinone PTZ : Phenothiazine HTS : Heat transfer
salt()
Iso-butylene/MMA
2 MMA
2.1 MMA HB MAA MACR MAA Ester MMA
(Isobutylene) Craking Reactor , 3 . (Metacrolein : MACR)
(Metacrylic Acid : MAA) . HB MAA HB MAA, , (Acrlyic acid : AA),
MACR . HB MAA (Vaporizer) MACR . . MACR MACR (Stripping) . MACR .
MACR . MAA MAA MAA MAA . MAA Ester (MeOH) (MMA) . MMA . MAA . ,
.
2. MMA
3
< 2-1> MMA MTBE, (C-4),
HQ(Hydroquinone), PTZ(Phenothiazin)
Iso-butylene/MMA
6
(Isobutylene) Craking Reactor , 3 .
. Craking Reactor MTBE Hold Drum(VE-1401) MTBE (HE-1401) . MTBE
MTBE Cracking Gas Cooler(HE-1402) Cracking Reactor(RE-1402) . ,
Cracking Reactor Shell . . . , DME (Di-Methyl-ether)
PWH(Demineralized Water) . Shell side .
. Washer(CO-1403) Sieve Tray (Demineralized Water) . (CO-1405) .
(CO-1404) . , (HE-1424) . (HE-1454) . Washer .
. Washer(CO-1403) (CO-1405) MTBE iC4 . (HE-1455) , . PIC , inert
gas Blow down , .
2. MMA
Iso-butylene/MMA
8
. 1 (RE-1001) MACR , MACR 2 (RE-1002 A/B) MAA .
1) 1 (HE-1004) 2kg/cm2G Superheater
(HE-1024) Superheating, (VE-1024) RE-1001 Feed Mixer(MX-1001)
.
() (CM-1001A) (CM-1002A) 1 (RE-1001) . .
Shell & Tube Type Quenching Intermediate Tube Sheet. 1
Intermediate Tube Sheet Tube , (Heat Transfer Salt) shell side
.
Intermediate Tube Sheet MACR , MACR MAA . ( ) 340 380 MACR MAA
.
Intermediate Tube Sheet Quenching , 285 Quenching. MACR
(Auto-Oxidation) . Quenching Tube Corrugated Plate , Quenching
(PU-1001C) .
2) 2 1 MACR (stripping, CO-1502)
MACR (CM-1001A) . MACR (HE-1522) 2 (HE-1012) .
2. MMA
9
2 (MX-1002) 2 . MACR 70~80% Tube 2
MAA . ( ) 280~320 MACR MAA
. (HE-1052)
.. , 2 (HE-1012) (Start-Up Furnace, FN-1001) .
HN holder(VE-1090) . HN holder scrubbing column(CO-1101) (Purge) .
.
. HB MAA RE-1002A/B (HE-1002)
MAA HB(heptane, butadiene) Scrubbing Column(CO-1101)
Quenching.
Scrubbing Column MAA MACR Venturi Scrubber(SR-1101A) Mist
Separator(SR-1101B) MACR (CO-3501) . Quenching (TPA) .
, MACR MAA MAA flash (SE-1106, HE-1107) .
1) Scrubbing Column MAA MACR 2 Scrubbing
Column(CO-1101) , HB Quenching.
HB 40% MAA MAA HB
Iso-butylene/MMA
10
. MAA HB MAA flash evaporator(SE-1106, HE-1107) .
HB Hydroquinone(HQ) Phenothiazine(PTZ) , Foam (Anti-Foaming Agent)
.
Quenching Gas Venturi Scrubber(SR-1101A) , Quenching (TPA) , Column
.
2) MAA (Flash System) , Pre-concentrator
(SE-1106) final (HE-1107). (Flash Drum) shell&tube
Reboiler
Flash , Thin-film . . Thin-film flash
. Hydroquinone(HQ) (HE-1126, HE-1127) .
. MACR MAA MACR Scrubbing Column Venturi Scrubber(SR-1101A/B) MACR
(CO-1501) . MAA MACR MACR (CO-1502) 2 .
1) MACR Venturi Scrubber MACR (CO-1501) ,
MACR MAA . MACR 35 MAA
MACR MACR(RE-1511) 2.5 MACR Bottom Liquid .
Scrubber(CO-1503) ,
2. MMA
11
Separator(ME-1501) . Bottom liquid MAA HQ . foam . Mist Seperator
(ME-1501) CO-1502 (PW)
2) MACR (Stripping) MACR Feed Pre-
heater(HE-1512D) MACR (CO-1502) , MACR .
2 MAA , Scrubber(CO-1503) MAA Tray , MACR (CO-1502) Top Gas
Preheater(HE-1522) 2 (RE-1002A/B) . Column MAA HQ . Foam .
3) , flash (SE-1106) MAA
(CO-1102) , MACR 200 Torr HQ (HE-1122) Vent Drum(ME-1162) .
Iso-butylene/MMA
2. MMA
13
. MAA MAA MAA , MAA(CO-1103) MAA . (CO-1105) . Feed MAA Ester
.
1) MAA MAA (VE-1132) 40wt% MAA MAA
(CO-1103) , n- (VE-1113) .
MAA . MAA , (CO-1105) .
2) MAA (CO-1103) (CO-1105)
, , Ester Grade MAA Crude MAA (VE-1211) Ester . Column 105 Torr .
MAA Phenothiazine(PTZ) O2 Reboiler .
3) (CM-1165A/B) Vent Gas
(CO-1164) . (FN-1601) .
. 1 (HE-1006A) 2 (HE-1006C)
220 (RE-1006) . (FN-1006) (RE-3006) .
(RE-1006) 300~400
Iso-butylene/MMA
14
. RE-1006 HE-1006C by-pass .
50% 1 , (CM-3002A) MACR (CO-3502) .
. 4 . 4 , .. Column(CO-1404) Bottom Liquid MAA (HE-1107) Flashing
Residue MAA (CO-1103) CO-3201 Bottom Evaporator(HE-1231) Flashing
Residue
1) Incinerator Incinerator(FN-1601) , 1000 .
2) (BO-1601) , 200 .
3) (CO-1103) (EV-1651A/B) . .
2. MMA
Iso-butylene/MMA
16
. Ester Ester grade MAA Ester (RE-1201A/B) (MeOH) Ester . . MAA
(CO-1202) , , MAA . (CO-1202) Receiver(VE-1222) Ester , (CO-1205) .
Ester .
1) Ester (CO-1105) Ester-grade MAA Ester
(FT-1211A/B) (MeOH) MeOH .
Ester-grade MAA MeOH, MeOH MAA feed mixer (MX-1211A/B) RE-1201A/B .
MAA (MeOH) . 80~95. RE-1201A/B (HE-1211A) . Start-up (HE-1211B)
.
2) MAA MAA (CO-1202) ,
MMA , .
(HE-1222B) Tank(VE-1222) , Ester . (CO-1205) ester (CO-1202) reflux
, (CO-1206) . HQ Reflux (HE- 1222A) . (HE-1222A) Vent- condenser
(HE-1262)
2. MMA
. Rebolier (HE-1232) .
3) MMA, MAA MAA (CO-1202)
(CO-1201) . MAA MMA (VE-1221) , Reflux. 60 Torr.
(CO-1201) (HE-1231B) . , (WWIS) . 45 Torr film . HQ Vent
Condenser(HE-1261B) . VE-1246A/B HQ (HE-1221A) HE-1221A Vent
Condenser (HE-1261A) . HE-1231A . HE-1231B Drum(VE-3231B)
4) MAA (VE-1222) (CO-
1206) feed heater(HE-1215) (CO-1205) .
MMA , (HE-1225) , , Reflux. Column . Column HQ HE-1225 HE-1235
.
. MAA (VE-1222) (CO-1206) (CO-1207) MMA .
Iso-butylene/MMA
1) MAA (VE-1222) (CO-1206)
100% Crude MMA .
(HE-1226) (CO-1205) (VE-1226) . Column . Column HQ , HE-3236
.
2) Final Column (CO-1206) Crude MMA 100 Torr
final column(CO-1207) . MMA (HE-1227A) (HE- 1227B)
(FT-1227A) . VE-1246A/B Column MMA HQ product HQ Tray , . MMA
FT-1227 AO-30 .
3) Ester Vent (CO-1264)
(Scrubbing), .
2.4.5 Blowdown and Slop Drum System . Isobutylene
Liquid Purge Blow Down System . Blow Down System Header . PSV
Header : C4 Gas Line
( TK-1813, HE-1004, VE-1024 )
2. MMA
Gas Header : C4 Vaporizing block Gas Line
. HB , MACR , MAA MAA , , Column Liquid Purge Blow Down Recovery
System . Blow Down System header . VE-1160A Closed header : liquid
Section VE-1160B dike Open ditch : Waste liquid WWT Drain dike Open
ditch : Dike
drainage
. , , , Column Liquid Purge Blow Down Recovery System . Blow Down
System header . VE-1260A Closed header : liquid Section VE-1260B
dike Open ditch : Waste liquid WWT Drain dike Open ditch :
Dike
drain
. , , Column Liquid Purge Blow Down Recovery System . Blow Down
System header . TK-1603 Closed header : Waste liquid WWT Drain dike
Open ditch : Dike
drain
2.4.6 Emergency Shut-Down .
Emergency Shut-down
Iso-butylene/MMA
20
. <DCS(Distributed Control System) > Emergency Shut-down DCS
. (Pump, , ) 2 Control Valve .
, Steam, Hot Water, Hot Solvent Feed .
Control Room DCS
Block Valve By-pass Valve Close Pump Discharge Valve
Close(SDN(Sodium Nitrite), Defoamer, Steam
Condensate ) Plant (, , , ) External Flushing Fluid Line Block
Valve Close
<Emergency Shut-down Control Valve > Line Control Valve Close
Feed Line Control Valve Close Extraction Unit Balance Line Control
Valve Open
. Utility Failure <Power Failure> , . System Control ,
Control Valve . , Feed .
<Steam Failure> Stream , SRC BTM ACN SRC System
2. MMA
.
<Cooling Water Failure> Cooling Water System Control .
<Air Failure> Instrument Air Stop . Pump Control Valve Close
Feed Pump Mechanical Seal Pump Stop.
Iso-butylene/MMA
3 MMA
3.1 MMA < 3-1> MTBE, , · .
< 3-1> MMA
(%) ()
()
MTBE C5H120 2.5 15.1 LC50:23,576
ppm(4hr -)
CH3OH 6 36 LC50:6,400ppm (4hr -) 11 385
Methacrylic Acid CH2CCH3CO OH 1.6 8.8
LD50:500 mg/kg
(-) 77 68
. Iso-Butylene Mixed-C4 , -76 2~11.5% , ( , ) , .
3. MMA
23
. MTBE Mixed-C4 -10 2.5~15.1% , ( , ) , .
. MMA MMA MAA 10 · 1.7~8.2% , .
. MAA , 11 6~36% , . , ( , ) , .
.
O2 . (TPA ) Column , Equipment .
Iso-butylene/MMA
3.2.1
(CO-1405) .
(CO-1405) MTBE iC4 .
Cracking Reactor MeOH Recovered Tower Washer
Cracking
- DME (Di-Methyl-ether)
PWH(Demineralized Water) Washer
MACR, MAA - Liquid Purge
Blow Down System . PSV Header : C4
Gas Line Gas Header : C4 Vaporizing block
Gas Line
- , , Column Liquid Purge Blow Down Recovery System . Closed header
liquid
(Dike) Open Ditch WWT
Drain Open ditch :
Drainage
- , , Column Liquid
Purge Blow Down . Closed header
- , , Column Liquid Purge Blow Down . Closed header (Waste
liquid) WWT
37
4.1
. 1993 1 28 11:45 L () MMA
. - : 1 - : -
. MMA (HTS : Heat
transfer salt) Jacket 3 .
’93. 1. 27 Hold tank, KNO3 NaNO2 Hopper Chute Chute 2 Heating coil
.
’93. 1. 28 3 chute 2 , 1 Hold tank 240 ,
Process side(Reactor) .
. 1)
Iso-butylene/MMA
2)
. 1)
. HTS HTS HTS Reactor Jacket Jacket
Hold tank Steam Coil Leak
4 2 HTS , 3 HTS , 4 Coil leak Coil leak test(N2 : 24 /, 4) , 1
.
4. MMA
39
2) HTS Hold tank N2 Sealing HTS Make-up Hold tank
.
. 1)
HTS HTS Vessel seal tank(ME-) (RD-)
HTS Hold tank (N2)
Sealing 2)
Spare part 100% ( 3EA 2EA Spare part
)
. Emergency manual ,