Process Gas Chromatographs - MicroSAM0 pages

© Siemens AG 2015

Process Gas Chromatographs
MicroSAM

■ Overview

■ Application
Chemical industry
• Analysis of ethylene in 1.2-dichloroethane (EDC) for process
control
• Fast determination of nitrogen in acetylene for process control
• Hydrocarbon analysis of starting product (LPG) of a cracker
• Safety measurement of ethylene oxide during unloading of
tankers
• Multicomponent analysis in ethylene oxide
• Analysis of methanol, water and dimethylether in a pilot plant
• Monitoring of coolant: Trace monitoring in chloromethane
• Analysis of nitrogen and hydrogen in pure gas of a chlor-alkali
plant

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The MicroSAM is a miniaturized process gas chromatograph
(GC) in an Ex d enclosure. Through consistent use of microsystem technology (silicon wafer technology), all analytical
components are concentrated in the smallest possible area.
The design particularly enables a distributed installation close to
the process.

■ Benefits
• The distributed field installation reduces investment costs,
and opens up new fields of application, e.g.:
- Installation in plant areas where mounting within an analyzer
shed is not possible
- Installation at remote locations without extended infrastructure
• Reduction in laboratory analyses through online measurements
• Low space requirements in analysis cabinets reduce
investment costs
• Low maintenance effort and gas/energy consumption reduce
operating costs
• High-resolution capillary columns permit fast analyses
• Live injection permits representative sample injections
• Maintenance-free, valveless separating column switching
with electronic pressure controllers
• The use of several micro thermal conductivity detectors
(multidetection) provides exact measuring results and also
validation possibilities
• Versatile networking possibilities for central maintenance and
secure data transfer
• Remote monitoring with Windows-based software and
Ethernet communication
• Simplified servicing through replacement of modules

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Siemens AP 01 · 2015

Oil & gas
• Hydrogen analysis in recycled gas and other process gases
• Analysis of inert gases and low-boiling paraffins/olefins in
combustion gas
• Analysis of hydrogen and low-boiling hydrocarbons in
reformer/platformer plant
• Trace analysis of impurities in acetylene from a cracker
• Analysis of ethane in ethylene from a cracker
• Measurement of calorific value in exhaust gas for quality
control in a power plant
• Analysis of ethylene in methane in an ethylene plant
• Analysis of propadiene and propine in the C2 splitter of a
steam cracker
• Analysis of low-boiling hydrocarbons in an ethylene plant/
visbreaker
• Analysis of exhaust gas in flares
• Analysis of gas loop in a propylene oxide plant
• Analysis of CO in crack gas in an LDPE
(low-density polyethylene) plant
• Analysis of refinery gas in a pilot plant
• Analysis of calorific value in natural gas preparation plants
Iron & steel
Analysis of exhaust gas in blast furnaces.
Pharmaceutical industry
• Analysis of O2, N2, CO2 and water in fermenting processes
• Analysis of alcohols in nitrogen for vacuum drying plants
Metals, aggregates, cement
Analysis of mine gas for inert gases and hydrocarbons.