1. The gas properties of natural gas

Natural gas components include: CH4, C2H6, C3H8, iC4, nC4, iC5, nC5, C6 +, CO2, N2, etc.

2. Physical properties of natural gas

Natural gas is a high-quality clean energy, but due to mining, gas-liquid conversion and other processes will also contain a certain amount of impurities, the main impurities are gas, liquid and solid impurities; need to be pre-processed to avoid damage to analytical equipment.

1). Liquid impurities: water and oil, and heavy hydrocarbons;

2). Solid impurities: sand, rock particles, ferrous sulfide, etc .;

3). Gas impurities: H2S, CO2, etc.

3.The current main natural gas calorific value measurement methods, advantages and disadvantages

At present, there are two main ways to detect natural gas. The first is to measure the natural gas composition through the instrument, and then the calorific value calculated by the composition and volume; the second is the calorific value measured directly by the calorimeter. Practical effect The analysis method for detecting natural gas components has higher precision and better repeatability; it has been more widely adopted in natural gas detection. The online natural gas analyzer, portable natural gas analyzer and online natural gas analysis system developed by Tianyu Intelligent Control can well monitor the concentration and calorific value of each component gas of natural gas, so as to realize the optimal control and safety monitoring of natural gas process in various scenarios.

4. Natural gas calorific value calculation formulas and regulations