IoT-Based Smart Application in Gas Production and Safety
Project Overview – Gas Odorization
The theory of gas odorization originated in Europe. As early as the 1960s, European countries and other developed nations began extracting, developing, and utilizing natural gas. Since natural gas and some types of manufactured gas are odorless or nearly odorless, odorization was introduced as a safety measure. The evolution of odorants has followed this path: sulfides → mercaptans → tetrahydrothiophene (THT).
Odorization is essential for gas safety, but determining the appropriate amount of odorant to be added is a key issue. The proper dosage of odorant offers several benefits:
Odorant Standards：
According to both international and domestic standards, the recommended THT concentration is 16–24 mg/m³ (as clearly stated in Urban Gas Design Code GB50028-2006), and the hydrogen sulfide content should not exceed 20 mg/m³.
Project Implementation Results：Online Monitoring Technology Features.
Project Implementation Results：Project Implementation Results：
Application Solution:
System Architecture
Online gas analyzers require clean, non-corrosive samples free from interfering components. Normally, the sample must be kept within a defined range of temperature, pressure, and flow rate.
Sample conditioning system tasks and functions include:
Flow regulation: Includes fast loop and analysis loop control.
Pressure regulation: Includes decompression, suction, and stabilization.
Temperature regulation: Includes cooling and insulation.
Dust, water, and humidity removal: Includes gas-liquid separation.
Harmful component elimination: Removal of substances that may damage the analyzer or interfere with accurate measurement.
Project Goals
Achieve a highly automated system with stable, reliable operation, minimal maintenance, and reduced labor intensity.
Improve overall gas system safety while reducing operating costs.
Deliver strong economic and environmental benefits, with a high return on investment.
