1. Catalogs
  2. ERALY & Associés
  3. Continuous measurement of sulfur in gases

Continuous measurement of sulfur in gases

Continuous measurement of sulfur in gases

Continuous measurement of sulfur in gases

Product catalog summary
Principle
The document describes a method for continuous measurement of sulfur in gases using UV fluorescence. Sulfur compounds are combusted under oxygen to form SO2, which is then measured by a UV fluorescent detector. The equipment can also measure nitrogen compounds.

Applications
The primary application is the control of alimentary CO2, but it can be used for any gas compatible with the method requirements.

Technical Characteristics
The system consists of two main racks:
  • Furnace and Gas Control Rack: Includes a 1000°C combustion furnace with a temperature regulator, quartz combustion tube, and circuits for pressure and flow control of pure O2 and CO2. It also features a mass flowmeter for CO2 calibration and a manual valve for direct SO2 measurement.
  • SO2 Measurement by UV Fluorescence Rack: Features continuous display of total sulfur, interactive software, programmable measurement ranges, and auto-calibration functions. It can be configured in different rack heights for integration or standalone use.
Optional equipment includes a second furnace for differentiating sulfur species by combustion temperature.

Maintenance and Calibration
Maintenance is minimal, with components like the UV lamp and quartz tube having a lifespan of 1 to 2 years. Calibration is precise, involving a permeation bench regulated at 40°C and a certified permeation tube.

Technical Specifications
  • Detection Method: Sulfur UV Fluorescence, continuous measurement.
  • Interferences: No interference from H2O or hydrocarbons due to optical and permeation filters.
  • Analysis Time: Approximately 5 minutes for liquids and gases, 5 to 10 minutes for solids.
  • Supply Requirements: CO2 and O2 regulated at 800 mb, electric supply of 230 V, 50 to 60 Hz, 500 VA.
  • Drift: Zero drift of 2 to 3 ppb/24h, calibration drift of 2%/7 days.
  • Measurement Range: 5 ppb to 10 ppm, with a detection limit of 5 ppb.
  • Other Characteristics: Linearity of UV detector ± 1% full scale, digital output options, and a calibrated mass flowmeter with stability ± 0.5% per year.
See more

Catalog excerpts

Continuous measurement of sulfur in gases-1

CONTINUOUS MEASUREMENT of SULFUR in GASES (Baie SO2) Measure by UV Fluorescence From 5 ppb to 10 ppm In alimentary CO2 PRINCIPLE Combustion under oxygen of sulphured compounds with formation of SO2 measured continuously by a specific UV fluorescent detector. We propose equivalent equipment for the measurement of nitrogen compounds. APPLICATIONS Mainly control of alimentary CO2, and also any other gas compatible with the method requirements. ERALY & Associés 97 rue A. Le Bourblanc F-78590 NOISY LE ROI RCS Versailles : B792892721 SIRET : 792.892.721.00012 APE : 4668B Banque CIC : FR76 3006 6106 3700 0202 4090 151 BIC : CMCIFRPP Mail : [email protected]

 Open the catalog to page 1
Continuous measurement of sulfur in gases-2

TECHNICAL CHARACTERISTICS It is composed with : A RACK « FUNACE AND GAS CONTROL» (19’’ x 6U x DEPTH. 600) With : - 1000°C combustion furnace with temperature regulator - quartz combustion tube - circuits for adjustment and control of pressure and flow for pure O2 and CO2 - mass flowmeter for control of CO2 calibration - 3 ways manual valve for direct measure of lone SO2 (R4) 1000°C combustion furnace controlled by PID temperature regulator with digital display, Accuracy 0.1% FS. A RACK « MEASURE SO2 BY UV FLUORESCENCE » AF22M (19’’ x 4U x DEPTH. 650) With : - continuous display of total Sulfur...

 Open the catalog to page 2
Continuous measurement of sulfur in gases-3

TECHNICAL SPECIFICATIONS DETECTION METHOD UV Fluorescence, continuous measurement No H2O interference (optical filter UV wavelength selection) Hydrocarbons TYPICAL ANALYSIS TIME No hydrocarbons interference (permeation filter) Pur regulated at 800 mb - input pressure between 1 and 3 bar Pur régulé à 800 mb – pression entrée entre 1 et 3 bar DRIFT Zero drift Calibration drift MEASUREMENT RANGE DETECTION LIMITS Other Characteristics Linearity UV detector ± 1% full scale - Certified COS tube ± 5% at 40°C Digital output RS 232 / FS 422 Selectable analog output 0-1V / 0-10V / 0-20 mA / 4-20 mA Mass...

 Open the catalog to page 3

Archived catalogs

*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.