Chemical Engineering June 2011 - 23

Shell Global Solutions.
BL Renewable Resources
Hit the Road to
New Fields of Profit
Figure 2. Shell's ConSep tray layout was tested at FRI. The sieve deck has been
removed on the right hand side of the center downcomer to reveal the separation
deck of the tray below. The contacting tray layout is two-pass, using truncated
downcomers
In the interior part of the packing
element, the geometrical features of
MellapakPlus and the previous version
of Mellapak are identical. So,
separation efficiency is similar, but
MellapakPlus boasts a significant increase
in capacity and a reduction in
pressure drop.
For refineries that are extracting
more fuel out of oil, the internals in
the columns that handle the " bottom
of the barrel " are subject to severe
fouling. For these applications, a new
grid-type product with increased fouling
resistance has been introduced by
Koch-Glitsch. The company's high-performance
severe-service grid packing
combines the efficiency of structured
packing with the robustness and fouling
resistance of grid packing. This
packing is a rugged assembly of rods
welded to sturdy corrugated sheets.
This combination provides a robust
design that resists damage that would
otherwise result from tower upset or
erosion. The gaps between the sheets
provide improved fouling resistance.
For other heavy service industries,
Jaeger (Houston) is offering the Raschig
Super-Ring heavy-duty random
packing. The alternating wave structure
has produced a shape that is open
on all sides and provides a large number
of contact points for homogeneous
distribution of liquid and gas. The Raschig
Super-Ring has more than 30%
greater load capacity, an almost 70%
lower pressure drop and a mass-transfer
efficiency exceeding that of conventional
metal packing by over 10%.
Amistco (Alvin, Tex.) also offers a
Distillation tray anD
packing proviDers:
Amistco
Jaeger
Koch-Glitsch
Sulzer Chemtech
UOP
www.sulzerchemtech.com
www.uop.com
high performance packing that combines
the performance of saddle and
ring styles. The unique shape permits
low liquid holdup and low pressure
drop, while the external geometry
prevents interlocking or entangling,
ensuring randomness and optimum
surface area within the packed bed.
Internal fingers, arches and vanes promote
optimum interfacial gas-liquid
contact with minimal drag or holdup.
Next generation trays
Likewise, trays are becoming more
energy efficient and providing higher
capacities. New high efficiency tray designs
are allowing better management
of liquid and vapor flow across the tray
to extract the maximum efficiency.
For instance, Koch-Glitsch's SuperFrac
high-performance trays offer
capacity expansion capabilities for
existing vessels. SuperFrac tray is
a crossflow device that can be used
in new construction or revamps to
achieve higher capacities and improve
efficiency. They are especially suitable
www.amistco.com
www.jaeger.com
www.koch-glitsch.com
Shell Global Solutions
www.shell.com/globalsolutions
Renewable resources open up many
opportunities to recover, process
and refi ne foodstuffs, but also to
substitute fossil fuels. Sustainable
treatment of natural resources is a
pressing need of the age we live in.
We now offer a platform for
forward-looking solutions by concentrating
our process know-how
for oils and fats, starch, proteins,
fermentation products and biofuels
in our Business Line Renewable
Resources.
The Business Line Renewable
Resources remains your market expert
for tried-and-tested processes,
while at the same time being a
centre of competence for innovative
ideas and visions. We support
you with the latest process technology,
right from laboratory testing
through to implementation on
an industrial scale.
Your direct route to 24 / 7 service:
www.westfalia-separator.com / service
Liquids to Value
GEA Mechanical Equipment
GEA Westfalia Separator Group
Werner-Habig-Straße 1 · 59302 Oelde (Germany)
Phone +49 2522 77-0 · Fax +49 2522 77-1794
www.westfalia-separator.com
Circle 13 on p. 62 or go to adlinks.che.com/35066-13
RR-2-30-006
http://www.amistco.com http://www.jaeger.com http://www.koch-glitsch.com http://www.shell.com/globalsolutions http://www.sulzerchemtech.com http://www.uop.com http://www.westfalia-separator.com http://www.westfalia-separator.com http://adlinks.che.com/35066-13
Chemical Engineering June 2011

Table of Contents for the Digital Edition of Chemical Engineering June 2011
