In the industrial field, there are many factory exhausts with a certain calorific value. For example, biomass pyrolysis gas, coke oven gas, blast furnace gas, ferroalloy tail gas, yellow phosphorus tail gas and blue carbon tail gas. We call it low BTU fuel. These fuels have two characteristics: one is the low calorific value, which is only 20% or even lower than natural gas; the other is the complex composition, including high deflagration H2 and highly toxic CO in addition to methane. These two characteristics will make it difficult for high-speed engine to run. But the potential of this market is very huge, and it is also the main demand of the energy conservation and emission reduction market.

According to the complexity of this kind of fuel, the team of Tellhow EST united with domestic engine factories to develop a series of products with large cylinder diameter, long piston travel and low rated speed. The key components of the products are carburized, nitride and lined with zinc plate, which greatly improves the tolerance of the engine to complex fuels.

Considering the huge output of low calorific value gas, the products launched by Tellhow EST team are mainly high-power. It includes seven models of 500kW, 800kW, 900KW，1300kW, 1650kW，2475KW and 3300kW. Please refer to the table below for specific technical parameters.