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SS2100 Hydrogen Sulfide In Hydrogen Recycle Analyzer
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Part Number: 23202
Manufacturer: SpectraSensors
Manufacturer Part No.: 23202
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Catalytic Reforming Unit:
The Catalytic Reformer Unit of a modern refinery is an important process unit for converting lower octane naphtha streams into higher octane aromatic compounds. These chemical conversions are done in catalytic reactors that transform straight chain C6-C8 compounds found in the naphtha into light aromatics such as Benzene, Toluene and Xylenes (BTX). This high octane reformate can then be used in gasoline blending or sold to chemical plants. As shown in Figure 1, depentanized naphtha feed is mixed with recycled Hydrogen gas, preheated and passed through a series of reactors where the conversion to aromatics takes place.
After the last reactor, a Hydrogen Separator strips out the hydrogen and other light gases from the stream. After the removal of the Hydrogen, the stream enters a Stabilizer Tower (also called a Debutanizer) which removes the Butanes and lighter gases with the Reformate leaving the Bottoms for gasoline blending or sent to a chemical plant.
Critical Control of Hydrogen Sulfide: The catalyst in the reactors is very expensive and sensitive to poisoning if exposed to certain compounds; most notably H2S. Traces of sulfur compounds are converted to H2S in the reformer and accumulate in the H2 recycle, where the H2S is readily measured. Recommended H2S levels to prevent poisoning in the feed are 0.25 – 1.0 ppm.
Traditional Measurement Soulutions: Lead Acetate paper tape analyzers have been used but they require frequent replacement of the paper tape and many regard the paper tape itself as a handling and disposal problem due to its lead content. Gas Chromatographs have often been used but the desired measurements require Flame Photometric and other trace sulfur detectors that can be maintenance intensive.
SpectraSensors' Solutions: SpectraSensors SS2100 is the ideal solution for this challenging application. It is extremely fast (<1 sec. updates if desired) and very sensitive (0.5 ppm repeatability). No cylinder gases are required, and the only consumable part, the H2S scrubber, is sized to last a minimum of 18 months between changes. The use of Tunable Diode Laser technology means measurement interferences from other infrared absorbing compounds are avoided.
Dual Range / Dual Channel: Refineries normally operate around 5 – 50 ppm moisture level in the hydrogen recycle stream, and attempt to keep the H2S at a minimum. The SS2100 Analyzer can be configured with two cells to measure both moisture and H2S.
Key Features:
- Fast – Sensitive measurement of H2S
- Virtually maintenance free – No routine maintenance required
- Low Cost of Ownership – No Lead Acetate paper tape, carrier gases or
- Flame fuel to buy
- No interference from other compounds – uses high resolution TDL technology
For More Information, Please Call 866-451-2257 or 805-576-7625. |
Price: Call For Pricing and Quote
Control H2 Recycle H2O concentration
for optimum catalyst performance and
for catalyst regeneration control.
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The
SpectraSensors SS2100 H2S Analyzer is a
new, low cost, low maintenance analytical
solution that generates extremely reliable
measurement of H2S in the fl are gas
stream.
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Price: Call For Pricing and Quote
The SpectraSensors SS2100 H2S Analyzer
is a low cost, low maintenance analytical
solution that generates extremely reliable
measurement of H2S in the fuel gas
stream.
|
Price: Call For Pricing and Quote
SpectraSensors SS2100 H2S Measurement
Analyzer measures hydrogen sulfi de in
natural gas quickly and reliably without
light source aging, tape replacement or
ongoing recalibration.
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Price: Call For Pricing and Quote
Control H2S in Refi nery Propane/
Propylene Mix using Tunable Diode Laser
technology.
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