Chemical Engineering September 2010 - 31

inventor Mohammed Elgafi, chief engineer
at EM&C Engineering Associates
(Cerritos, Calif.).
Current wet processes for producing
phosphoric acid require 2.8 tons of
sulfuric acid per ton of P2O5 produced
and generate phosphogypsum, considered
a hazardous waste, at rates of
four to five tons per ton of P2O5.
According to Elgafi, the process can
save at least $300/ton of P2O5 produced,
as well as five tons of water
with improved energy efficiency. -
Oct. 19, 3:45 PM
Hydrogen peroxide synthesis
using a microreactor
Scientists at Japan's National Institute
of Advanced Industrial Science
and Technology (AIST; Tokyo, Japan;
www.aist.go.jp) have developed a glass
microreactor that allows smaller-scale
production of hydrogen peroxide from
hydrogen and oxygen.
Designed to provide a method for
producing H2O2 at the point of use, the
microreactor ensures the proper distribution
of gas reactants and reaction
solution over the catalysts. The reactor
is fabricated using chemical isotropic
etching with hydrofluoric acid, and
also numerically controlled micromachining.
Together, the two methods are
able to generate narrow channels of
width 0.05 mm, as well as wide channels
in the sub-mm size range to control
gas-liquid distribution over the
catalyst and promote productivity.
The new microreactor has been
used to generate aqueous hydrogen
peroxide safely and at more than 5%
(wt). - Oct. 19, noon
Realtime analysis of equipment
gives full-system picture
A new methodology for realtime analysis
of multiple pieces of equipment is
offered by a division of Flowserve Corp.
(Fairfield, N.J.; www.flowserve.com).
The approach and associated instrumentation
can monitor multiple
pieces of equipment, collecting highresolution
data that allow engineers
to examine cause-and-effect interactions
among all the components over
the course of normal operational
swings. As an example, Flowserve
points to a case where the analysis
approach monitored in realtime a
complete feedwater system with ten
locations for flow and six to eight
pumps in operation, along with many
valves and tanks.
Flowserve Integrated Solutions
Group co-founder Dale Winterhoff
says, " From this, you can get a true
system picture relating cause and effect
to operational performance. "
The monitoring system generates
" high-resolution data " that are programmable
to be preprocessed according
to engineers' needs. It has been
employed in several industry sectors.
- Oct. 20, 3:30 PM
■
Scott Jenkins
Please visit us at
Circle 38 on p. 62 or go to adlinks.che.com/29254-38
ChemInnovations, Houston, TX - Booth 511
Circle 27 on p. 62 or go to adlinks.che.com/29254-27
CHEMICAL ENGINEERING WWW.CHE.COM SEPTEMBER 2010 24D-7

http://www.aist.go.jp http://www.flowserve.com http://adlinks.che.com/29254-38 http://adlinks.che.com/29254-27 http://WWW.CHE.COM

Chemical Engineering September 2010

Table of Contents for the Digital Edition of Chemical Engineering September 2010

Contents
Chemical Engineering September 2010 - Cover1
Chemical Engineering September 2010 - Cover2
Chemical Engineering September 2010 - Contents
Chemical Engineering September 2010 - 2
Chemical Engineering September 2010 - 3
Chemical Engineering September 2010 - 4
Chemical Engineering September 2010 - 5
Chemical Engineering September 2010 - 6
Chemical Engineering September 2010 - 7
Chemical Engineering September 2010 - 8
Chemical Engineering September 2010 - 9
Chemical Engineering September 2010 - 10
Chemical Engineering September 2010 - 11
Chemical Engineering September 2010 - 12
Chemical Engineering September 2010 - 13
Chemical Engineering September 2010 - 14
Chemical Engineering September 2010 - 15
Chemical Engineering September 2010 - 16
Chemical Engineering September 2010 - 17
Chemical Engineering September 2010 - 18
Chemical Engineering September 2010 - 19
Chemical Engineering September 2010 - 20
Chemical Engineering September 2010 - 21
Chemical Engineering September 2010 - 22
Chemical Engineering September 2010 - 23
Chemical Engineering September 2010 - 24
Chemical Engineering September 2010 - 25
Chemical Engineering September 2010 - 26
Chemical Engineering September 2010 - 27
Chemical Engineering September 2010 - 28
Chemical Engineering September 2010 - 29
Chemical Engineering September 2010 - 30
Chemical Engineering September 2010 - 31
Chemical Engineering September 2010 - 32
Chemical Engineering September 2010 - 33
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Chemical Engineering September 2010 - 35
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Chemical Engineering September 2010 - 41
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Chemical Engineering September 2010 - 72
Chemical Engineering September 2010 - Cover3
Chemical Engineering September 2010 - Cover4
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