One of the core advantages of gas-oil boilers is their extremely wide fuel adaptability, mainly consisting of gas and liquid, with some being compatible with biomass, which can flexibly adapt to different working conditions and energy conditions.
I. Gaseous Fuel (Mainstream Preferred)
Natural gas (including LNG/CNG) : The most commonly used, clean and efficient, low nitrogen and environmentally friendly, with a thermal efficiency of over 98%.
City gas/coke oven gas: Industrial by-product gas, low cost, compatible with dedicated burners.
Biogas/bio-gas: Gas produced through anaerobic fermentation, suitable for scenarios such as sewage treatment plants and livestock farms.
Liquefied petroleum gas (LPG) : High calorific value, can be used as a backup or supplementary fuel.
Ii. Liquid Fuel (Universal and Reliable)
Light oil/diesel: Good atomization and stable combustion, commonly used as backup fuel.
Heavy oil/residual oil: Industrial heavy oil, low cost, needs to be compatible with high-pressure atomizing burners.
Methanol/Ethanol: Clean alcohol-based fuel, environmentally friendly and low-emission, compatible with dedicated combustion systems.
Iii. Biomass and Others (Customized Adaptation)
Biomass briquette pellets: Formed by pressing wood chips, straw, rice husks, etc., require special burners and furnace body modifications.
Others: Some models are compatible with low calorific value industrial gases such as coalbed methane and blast furnace gas.
Iv. Key Points for Selection
Preferred gaseous fuels: natural gas > biogas > coke oven gas, environmentally friendly, efficient and with low operating costs.
Liquid fuel backup: Light oil/diesel is easy to start and stop, while heavy oil is suitable for low-cost continuous operation.
Biomass needs to be customized: The furnace body and combustion system need to be modified to adapt to low calorific value and high ash content fuels.
V. Typical Application Scenarios
In areas with abundant natural gas: Natural gas is the main source, with light oil as a backup.
Industrial park: Coke oven gas/city gas + light oil combination.
Aquaculture/Wastewater treatment: Biogas + natural gas complementary.
Remote areas without gas: light oil/heavy oil or biomass pellets.
Summary: With its fuel adaptability capabilities that are universal for oil and gas and customizable for biomass, it has become one of the most fuel-adaptable boiler types among various models, capable of meeting the energy demands of different regions and industries.