How to choose a suitable flow meter to measure refinery tail gas?

With the process of industrialization, the emission of refining tail gas has become an important environmental issue. In order to ensure that the emissions of refining tail gas comply with environmental standards, it is crucial to select a suitable flow meter for measurement. This article will introduce how to choose a flow meter to measure refining exhaust gas.

Only by understanding the main components and characteristics of refining exhaust gas can you choose a flow meter made of appropriate materials. Refining tail gas mainly consists of methane, carbon dioxide, nitrogen, hydrogen, etc., of which methane is the most important component, accounting for more than 70% of the total gas volume. Therefore, we need to choose a flow meter that can accurately measure methane.

Also consider the working environment of the flow meter. Refining exhaust gas contains a large amount of dust, water vapor and other impurities, which will have a certain impact on the flow meter. Therefore, we need to choose a flow meter that can resist dust, water vapor and other impurities. In addition, the temperature and pressure of refining off-gas vary greatly, and the flow meter needs to be able to adapt to these changes.

The accuracy and stability of the flow meter are also very important and cannot be ignored. Since the composition and characteristics of refining exhaust gas vary greatly, the flowmeter needs to have high accuracy and stability to ensure the accuracy of the measurement results.

Based on the above factors, flow meters suitable for measuring refining exhaust gas include vortex flow meters, V-cone flow meters, thermal flow meters, etc. Among them, the V-cone flowmeter has high accuracy and stability and is suitable for measuring the flow of gases such as methane; the thermal gas flowmeter is suitable for measuring the flow of dust-containing gases.

In short, many factors need to be considered when choosing a suitable flow meter to measure refining exhaust gas. Only by selecting a suitable flow meter can we ensure that the emissions of refining exhaust gas meet environmental standards.