Southern Analytical process analyzers, process monitors and instrumentation for on-line, in-situ and at-line measurement systems, providing continuous single or multicomponent concentration. Techniques employed include: photometric (use of discrete photometers), spectrophotometric (using full spectrum spectrometer), FTIR (FT-IR), FT-NIR, photodiode array (diode array or PDA) UV/VIS (or alternatively single region NIR, UV or VIS), NIR, Mass Spectrometers, tunable diode laser/lasers (TDL) and more... These systems are applied in: polymer melt monitoring for additives; density and other properties; sulfur (sulphur) recovery unit (SRU) tail gas analyzers (air demand and ratio analyzers); Claus, Modified Claus and Superclaus process plant control; amine based tail gas treaters (TGTUs); low-level moisture analyzers; quality of natural gas for moisture, H2S, hydrocarbon dew point (dewpoint); and, gas, liquid, solids composition analysis. Southern Analytical can provide complete integrated analyzers and process control monitors with sampling systems, analyzer enclosures (wall mounting enclosure, shelter or house) and output for plant process control. We offer analyzers for: H2S (hydrogen sulfide), SO2 (sulfur dioxide), COS, CS2, , NO, NO2, NOx, Cl2 (chlorine), chlorine dioxide, NH3, ammonia, BTX, BTEX, benzene, toluene, xylene, aromatics, CO, CO2, color, Saybolt color, Tag Robinson color, APHA color, ASTM color, ASTM 1500 color, Hazen color, Platinum Cobalt color, Sulfur vapor, total sulfur, MEHQ, TBC, H2O, moisture, HRVOC, VOCs, Oxygen (O2) and trace impurities. Our process analyzers have been used for measurements in Refineries, Power Plants, Chemical and Petrochemical plants for process quality, control, as well as continuous emissions monitoring (CEM or CEMs)...
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Southern Analytical Inc.

Southern Analytical, Inc.
19407 Oil Center Boulevard
Houston, Texas 77073

Phone: (281) 591-0800
Fax: (281) 591-0052

Toll-Free: (888) 591-6300

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Hydrocarbon Production, Processing and Pipeline

Model 4660

Measurement of H2S in hydrocarbon streams, 0-5 PPMv, 0-300 PPMv, 0-1000 PPMv ranges available. Additionally the Model 4661 can be used for measurement in refinery fuel gas streams.

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Product Features:

  • FIELD UNIT
    The field unit incorporates sample preparation, reagent preparation, high flow bypass loop and a photometer on a single plate for wall mounting indoors. Ammonium hydroxide is generated within the system by mixing commercial grade ammonia with water. Combination of this compound and the sample within a high efficiency reaction tower ensures 100% conversion to ammonium sulfide. Utilizing a short path length cell and high intensity vapor discharge lamp, the system provides a highly linear and accurate analysis of H2S concentration in full scale ranges as low as 0-5 PPMv. A built in optical filter allows for rapid calibration checks without the complexity and expense of handling calibration gases.
    CONTROLLER
    A state-of-the-art microprocessor controls the analyzer operation and computes output signals. Digital display of component composition is provided, together with analog signals for H2S concentration. Alarms are included for H2S concentration, as well as for loss of light. As typically quoted, the controller will be integrally mounted within the analyzer cabinet.
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