In many cases, the availability of alternative fuels provides customers with an economically beneficial fuel compared to purchasing traditional fuels such as natural gas or distillate oil. With our robust range of gas engines, and a fleet of gas turbines larger than all of its competitors combined, GE has more operational experience handling, treating, and burning alternative fuels as well as understanding the relative maintenance impacts of their use.

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Coal Mine Gas

Released methane gas from underground coal mines forms a highly explosive mixture when combined with air. This mine gas not only poses a major threat to miners, but it also is a large contributor to global warming when released into the atmosphere. However, the potential danger of coal mine gas (CMG) and methane emissions can be greatly reduced when they are harnessed properly for power and heat generation.

How It Works

GE’s aeroderivative gas turbines are designed to operate on full load, despite low gas pressure, high humidity, dust load, and altitude. The generated energy can be used in the coal mine to meet electricity requirements or fed into the public power grid. Thermal energy can be used for onsite heating or fed into a district heating system.

Features & Benefits

  • Increased worker safety due to installation or refurnishing of gas suction system
  • Mitigation of greenhouse gas (methane) and possible carbon monetization
  • Revenues for power and heat production, when fed into the public grid
  • Smooth operation despite fluctuations in gas pressure and methane content
  • Overall efficiency of up to 90%, in combined heat and power, and up to 43.5% in power generation alone
  • Zero to 100 percent load in 10 minutes
  • Compact, modular units with low footprint requirement and dynamic weight
  • Basic design and support for gas conditioning if required
  • Low NOx yield from Dry Low Emissions (DLE) combustors

Steel Gas

Blast furnace, steel and coke gas to electricity: how it works

Rising energy costs and a high demand for power are major challenges for the steel industry. Gases created as “free” by-products during steel production processes serve as an attractive option for efficient power generation. In addition to the economic benefit these gases provide, using them as engine fuel reduces industrial CO2 emissions and saves natural energy sources. GE offers specially modified aeroderivative gas turbines that make efficient use of coke gas for combined generation of heat and electricity, and can achieve full power in 10 minutes.

Customer features & benefits of steel waste gas to energy

  • Efficient and economic power supply by using coke gas as engine fuel
  • Heat production from the heat recovered from the turbine further increases economic feasibility
  • Fuel flexibility by the possibility to operate the plant also with natural gas ensures high availability
  • Alternative disposal of a problem gas while simultaneously harnessing it as an energy source
  • Reduced energy costs, and greater predictability and stability
  • Efficient and economic combined heat and electricity supply
  • Full power in 10 minutes
  • Best suited for an electrical output range of a few hundred kW up to 20 to 30 MW
  • Considerably low gas pressure required
  • Reduced greenhouse gas
  • Long intervals between overhauls, due to simple, high-quality construction
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Waste to Power Products

GE is committed to finding innovative ways to produce power—we’re constantly researching and working with industries to figure out not just how to optimize power generation—but how to revolutionize it.  

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