8/12/2019 Celanese PFD of Methanol

1/1

Simplified proc ess flow di agram (PFD)

Celanese Chemicals

Clear Lake Plant

New Methanol Plant

HP4

oxygen

Spec MeOH to Storage

Pre- (Tanks vent to EPN: 55T43ST)

reforming Purge gas

to HDS1

HDS1

Higher alcohols

Process condensate Feedstock Stm from MS2

By-product water saturation Cond to MS2

Lt ends to fuel

Methanol Methanol

purification synthesis

MP5steam

Higher alcohols to Feed sat

HP steam to users By-product water to Feed sat

Purge gas

to HDS1

Natural Nat gas

EPN: REFORM*

Stm to

Feed sat

Cond from

Feed satSecondary

reformer

gas comp WHB

/Stm Heat Ref gas Syn gas

Primary superheater recovery cooling compression

SCR reformer

Process cond Process cond

Comb air Anhyd ammonia HP BFW4,7

to Feed sat to Feed sat

Other EPNs:

EPN: MEOHANALZ*

EPN: MEOHENG*

EPN: MEOHFLR*Nat gas to fuel Purge gas to fuel EPN: MEOHFUG*

EPN: MEOHMSS*

EPN: MEOHMT*

Notes:

(1) HDS = Sulfur removal via hydrogenation/zinc oxide absorption

(2) MS = Methanol synthesis

(3) EPNs with * are sources of GHG. All other EPNs are non-GHG emission sources.

(4) HP = High Pressure

(5) MP = Medium Pressure

(6) WHB = Waste Heat Boiler(7) BFW = Boiler Feed Water