What type of gas do gas-fired boilers burn?

Gas-fired boilers are a general term for boilers that use gaseous fuels as energy sources. These fuels possess high calorific values and low pollutant emissions, qualifying them as clean energy sources. Consequently, they are increasingly favored by industrial users.

Common types of gas fuels:

1. Natural Gas — The most commonly used fuel for gas boilers

Natural gas is the most widely used gas fuel, characterized by low sulfur content and high calorific value. As a clean energy source, it causes minimal environmental pollution.

 

2. Biogas — Balancing Environmental Protection and Economy

Biogas is a combustible gas produced through organic fermentation, classified as a secondary renewable energy source. It can be directly used as fuel for gas boilers. Industries such as livestock farming, breweries, and soybean product processing often opt for co-firing biogas with natural gas.

 

3. Liquefied Petroleum Gas (LPG) — High-Calorific Value, High-Efficiency Fuel

LPG is a colorless, volatile liquid obtained by pressurizing and cooling natural gas or petroleum at refineries. It is highly flammable, necessitating strict safety precautions when operating LPG-fueled boilers.

 

4. Industrial Byproduct Gases — Used in Metallurgical and Chemical Industries

Industrial byproduct gases, such as coke oven gas, blast furnace gas, and tail gas, can also be utilized in specific boilers.  

 

In summary, gas boilers can utilize a wide variety of fuels. Regardless of the fuel selected, multiple factors should be comprehensively considered, including fuel availability, combustion efficiency, cost, environmental requirements, and boiler operational efficiency.