Model 933 H2S in Natural Gas

Model 933 H2S in Natural Gas

The 933 is a unique ultraviolet (UV) photometric analyzer system designed for the low-level measurement of hydrogen sulfide (H2S), carbonyl sulfide (COS), and methyl mercaptan (CH3SH) in natural gas applications.

Capable of unattended operation for an extended time period, the 933 consists of a fully integrated analyzer and sample system. It provides a fast response time to increasing or decreasing H2S and other sulfur species concentrations.

The 933 uses AMETEK’s proprietary frontal elution chromatography sampling technique, combined with the exceptionally high-resolution, multi-wavelength 900 Series UV optical bench. These combine to provide an accurate, interference-free measurement.

With optional measurements also available for carbonyl sulfide (COS) and methyl mercaptan (CH3SH), the 933 is ideal for a range of applications in the hydrocarbon processing, natural gas, and petrochemical industries.

SELF-RECOVERY
Two self-regenerating columns are employed in the 933. While one column is conditioning the gas sample, the other is automatically regenerated.

INTERFERENCE-FREE MEASUREMENTS
The 933 utilizes unique, proprietary frontal elution chromatography to separate H2S, COS and CH3SH from interfering components in natural gas.

ACCURATE PERFORMANCE
Non-dispersive, dual-beam hollow cathode UV photometric detection of H2S (optional COS and CH3SH) provides accuracy better than ±2% of full scale on standard ranges.

The 933 is a unique high-resolution, multi-wavelength UV analyzer for H2S, COS, and CH3SH in natural gas – Find out more.

Features
  • Fully integrated analyzer and sample system
  • Self-recovery after high-concentration H2S events
  • Fast response to changing concentrations
  • Optional COS and CH3SH measurements