What is Gas Composition Analysis? Benefits, How It Works, and Recommended Services

Gas Composition Analysis is a laboratory analysis process to determine the content or percentage of various types of gases in a sample. This analysis includes the identification and quantification of hydrocarbon components (methane, ethane, propane, butane, pentane, hexane+) to non-hydrocarbon components (nitrogen, oxygen, CO₂, CO) as well as contaminants such as hydrogen sulfide (H₂S), total sulfur, mercury, and moisture.

This technique is becoming standard in the oil, gas, LNG, LPG, and energy industries because the results are used for quality control, safety, energy efficiency, and regulatory compliance.

Gas Composition Analysis Utility

Performing gas composition analysis provides several strategic advantages:

• Product Quality Control Ensures that the gas produced or distributed meets international standards such as ASTM, ISO, and GPA Midstream.
• Operational Safety Identifying hazardous substances such as H₂S or mercury that can damage equipment and endanger workers.
• Energy Efficiency Calculate the calorific value (GHV, NHV) and Wobbe Index for combustion process optimization.
• Regulatory Compliance Meet technical and legal requirements according to global standards.
• Business Decision Making Gas composition data helps in determining pricing, contracts, and distribution strategies.

How Gas Composition Analysis Works

This analysis process is generally carried out using the method Gas Chromatography (GC) high-resolution, which separates and measures each gas component. Typical steps include:

1. Sampling is carried out in the field or production facilities with standard procedures.
2. Laboratory Analysis Using instruments such as GC-MS, ICP, AFS, Karl Fischer, and sulfur detectors.
3. Energy Parameter Calculation Calculate GHV, NHV, Wobbe Index, density, and molecular weight.
4. Reporting Results Presents complete technical data along with a certificate of compliance.

Standards and Methods Used

Some international standards used in Gas Composition Analysis include:

• ASTM D1945 – Hydrocarbon Types by Gas Chromatography
• GPA 2261 – Analysis for Natural Gas & Similar Gases
• ISO 6974 – Determination of Composition with Defined Uncertainty by GC
• UOP 539 – Hydrocarbon Analysis Methods
• ASTM D5504 / ISO 6326 – Determination of Sulfur and Hydrogen Sulfide
• Karl Fischer Method – Water Content Determination
• ASTM D3588, GPA 2172, ISO 6976 – Energy Calculations (GHV, NHV, Density)

Short Case Studies

An LNG company in Indonesia routinely conducts gas composition analysis. The results showed elevated CO₂ levels above contractual limits. With this data, the company immediately adjusted its refining process, avoided contractual penalties, and maintained its reputation in the international market.

Recommended Service: PT. Hidea Inti Daya

If you need Gas Composition Analysis services Accurate, fast, and in accordance with international standards, PT. Hidea Inti Daya is the right choice.

Advantages of PT. Hidea Inti Daya:

• International Standard Instruments: GC-MS, ICP, AFS, Karl Fischer, and sulfur detectors.
• On-site & Mobile Testing: Supporting field needs with mobile laboratories.
• Comprehensive Reporting: Technical data, quality analysis and compliance certificates.
• Experienced Experts: More than 20 years in the field of petroleum chemistry, LNG and LPG.
• Global Standards Compliance: ASTM, ISO 17025, GPA Midstream, and UOP Methods.

Contact Now

For consultations or to order Gas Composition Analysis services, visit the official website of PT. Hidea Inti Daya or contact us directly via WhatsApp at +62 877-6494-5736.