Chemical Engineering April 2021 - 19

new Metrex has been classified to be
safely operated in designated hazardous
locations. Unlike traditional flameionization
detectors, the Metrex does
not require a technician to carry calibration
gas cylinders, because it can
perform a user calibration in air. It detects
and measures gas ranges from
0 to 10,000 parts per million (ppm).
- QED Environmental Systems, Ltd.,
Coventry, U.K.
www.qedenv.com
Transmitter-style GC measures
sulfur and natural gas energy
The Rosemount 700XA gas chromatograph
(GC; photo) is said to be
the industry's first single analyzer for
measuring sulfur compounds, as well
as the energy content of natural gas.
The analyzer offers a cost-effective
approach to meet gas-quality and
heating-value requirements for pipeline
distribution, processing of liquified
natural gas (LNG), mixed and highpurity
natural gas liquids (NGLs), as
well as international LNG commerce.
While previous generations of GCs
have required the purchase of separate
analyzers for sulfur measurement
and heating-value analysis, the new
Rosemount 700XA gas chromatograph
is equipped with a micro-flame
photometric detector (FPD), allowing
users to reduce initial equipment cost
by as much as 50% and footprint requirements
by up to 40%, says the
manufacturer. The 700XA is a Class
1, Division 1, explosion-proof, ATEX/
IECEX safety-rated analyzer, eliminating
instrument air requirements for
purging or the need for additional protection.
- Emerson Automation Solutions,
Shakopee, Minn.
www.emerson.com
QED Environmental Systems
TDL analyzers for chlor-alkali
and combustion processes
This company recently enhanced its
GPro 500 tunable-diode laser (TDL)
gas analyzer series (photo) for better
management of corrosion in the
chlor-alkali industry and for greater
combustion control, as well as increased
O2-measurement accuracy.
The GPro 500 TDL H2O ppm sensor
is designed for the measurement of
very low moisture levels for corrosion
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CHEMICAL ENGINEERING WWW.CHEMENGONLINE.COM
APRIL 2021
19
http://www.qedenv.com http://www.emerson.com http://WWW.LOADCONTROLS.COM http://adlinks.chemengonline.com/80068-20 http://WWW.CHEMENGONLINE.COM
Chemical Engineering April 2021

Table of Contents for the Digital Edition of Chemical Engineering April 2021
