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Quality of gases, biomethane, hydrogen

The challenges

Biogas, LNG, hydrogen, syngas: the multiplication of gas sources and types requires ever-finer analysis of their composition, in order to ensure compliance with current specifications, and to assess the impacts of the new sectors on infrastructures and gas uses. This objective includes the development of analytical means and testing protocols to determine the composition and physical-chemical properties of the gases, particularly trace gases, within short response times compatible with industrial-scale operation.

RICE’s expertise in the field of gas quality and odorization is based on recognized know-how:
* Development of special-purpose analytical methods suited to combustible gases “in a methane and hydrocarbon matrix”, particularly trace gases (zero contamination): sample preparation, instrument calibration, measurement. The challenge is to be able to discriminate between the hydrocarbons interfering with the trace constituents of the new gases, and also ensure the traceability of the samples taken and their integrity up to analysis.
• Calculating the physical-chemical properties (thermodynamics, heat transfer, etc.) of the combustible gases.
• Proficiency in the processes related to the odorization of a gas.
• Knowledge of synthetic odorants and olfactory compounds naturally present in gases (properties, interactions with equipment and soils, overlay of odors …).
• Knowledge of the perception of the smell of a gas by the general public, and the consequences in terms of safety.

Our competencies
Our study and test means

RICE has state-of-the-art, industrial-scale equipment and analysis resources specific to the new gas issue:
• Gas phase chromatographysystems, fixed or hand-held, connected to a range of detectors (FID, TCD, MS, PFPD), and sometimes pre-concentration systems (TDS).
• High-performance liquid phase chromatography (HPLC) and ion chromatography systems
• Gas sampling systems specific to the compounds of interest (particularly trace elements) and the subsequent analysis methods.
• Mobile laboratory to carry out measurement campaigns in the field, as close as possible to the pipeline.
Humidity standard generator.
• Gas library specific to compounds that can be found in combustible gases and covering a wide range of contents.
• Patented device forremoving dissolved gases from a liquid.
• The Gaspack software, developed by the RICE teams, is used to perform a large number of calculations: physical-chemical and thermodynamic properties of natural gas (combustion parameters, phase envelopes, speed of sound, conductivity, etc.), fluid mechanics parameters (viscosity, heat, compressibility factor, etc.), heat transfers (especially in relation to soil freezing).

Our services
  • Carrying out measurement campaigns on industrial sites and/or in the laboratory in order to obtain exhaustive characterization of the combustible gases of an installation, such as a biomethane injection station or a syngas production unit.
  • Testing analyzers for verification of compliance with operational needs and comprehensive performance evaluation.
  • Identification of thecombined impact of the chemical and physical parameters of the gas,and control of deviations, so as to guarantee the safety of goods and people and ensure consistent continuity of supply.
  • Recommendations for technical specifications and arrangements for monitoring the φ – γ parameters of the gas and/or its composition, depending on impacts, uses, systems.
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