Title: 1500%20TPD%20Methanol%20Reactor%20System
11500 TPDMethanol Reactor System
1500 TPDMethanol Reactor System
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2General Overview
Capacity 1500 TPD Technology Lurgi Convertors T
wo (62,000 sq. ft. each) Manufacturer Nooter Tube
s 6851 (1.5 overall dia. x .078 wall thickness
x 2211.375 long) Tube Pressure/Temp. 920 PSIG
_at_ 520F Shell Pressure/Temp. 777 PSIG _at_ 517F
3Process Description
Lurgi Converters
- The purpose of the Lurgi converter loop is to
produce methanol using synthesis gas as the raw
material. Synthesis gas from the discharge of
the MUG compressor (C-328) is combined with
synthesis gas from the high pressure separator
(V-2359) at the suction of the recycle compressor
(C-329). The discharge pressure of C-329 is
controlled at approximately 846 psig. - The discharge flow from C-329 is preheated in
interchanger HE-2553 (shell side) and fed to the
two converters (V-2357 and V-2358) which are
operated in parallel. The synthesis gas flows
through the tubes of the converters, which are
filled with a pellet-shaped catalyst. This
catalyst is zinc/copper in an aluminum oxide
base. The product is a gas stream containing
methanol and synthesis gas, which was not
converted due to catalyst efficiency. - Heat is evolved during this reaction is
(exothermic) and is transferred to boiler feed
water on the shell side of the converters. The
boiler feed water comes from the Lurgi steam drum
(V-2361) located above the converters. The water
flows through downcomers, picks up heat in the
converters, and the steam flows through risers to
V-2361. The temperature of the water in the
reactor shell is controlled by varying the steam
pressure in steam drum V-2361 with the pressure
controller (PRC-630). The product from the
converters is passed through the interchanger
(HE-2553) on the tube side where it is cooled by
synthesis gas on the shell side. The converter
product is further cooled by a final crude
methanol condenser (HE-2827). Following the
condenser, the flow goes to the high pressure
separator (V-2359) where the liquid methanol is
dropped out and the resulting synthesis gas
stream is taken overhead. To provide pressure
control of the converter loop, some synthesis gas
from the V-2359 overhead stream is removed or
"purged" from the loop. The volume of purge gas
removed is controlled using PIC-231 valve based
on the discharge pressure of C-329. The
remaining synthesis gas from V-2359 overhead is
sent to the suction of C-329. The liquid from
V-2359 goes to the low pressure separator
(V-2360). The overhead of V-2360 goes to the
Boilerhouse as low pressure gas for firing their
boilers. The base of V-2360 crude methanol goes
to T-280 and T-288 via HE-2557 and HE-2569 for
sales grade methanol, and to T-279 for MO grade
methanol.
4Equipment
The Following Equipment Is Included
- H.P. Methanol Separator
- L.P. Methanol Separator
- Convertor Steam Drum
- Convertor Inter Changer
- Crude Condenser
- Recycle Compressor
5Photos
LURGI REACTORS (V-2357 AND V-2358)
6Photos
LURGI REACTORS (V-2357 AND V-2358)
7Photos
LURGI LOOP COOLING WATER PROCESS COOLER (HE-2827)
8Photos
LURGI LOOP HIGH PRESSURE LET DOWN DRUM
(V-2359) AND LOW PRESSURE LET DOWN DRUM (V-2360)
9Photos
LURGI LOOP INTERCHANGER (HE-2553) AND COOLER
PIPING
10Photos
RECYCLE COMPRESSOR (C-329) AND TURBINE OIL
SYSTEM AND SHUTDOWN PANEL
11Photos
RECYCLE COMPRESSOR TURBINE (PT-1221)
12Photos
LURGI LOOP RECYCLE COMPRESSOR (C-329)
13Contact Information
MICHAEL JOACHIM DIRECTOR, PLANTS DEPT. Tele 609-838-5930 (direct) Mobile 609-516-9107 MichaelJ_at_ippe.com
SANJEEV REGE VP GLOBAL PLANT SALES Tele 609-838-5938 (direct) Mobile 609-510-2616 SanjeevR_at_ippe.com