Natural gas systems are typically supplied via underground main lines, while LP gas is supplied via an onsite consumption tank. Both types of combustible gases will supply fuel to various appliances that can heat water and the environment and be used for cooking or other utilities. Fuel gas generally refers to any natural gas fuel that is gaseous under normal conditions. Fuel gas can be used in reciprocating engines, boilers, combustion heaters and power plant turbines.
However, gaseous fuel includes refinery gas, pipeline gas, wellhead gas and lean gas. Many combustible gases contain hydrocarbons, hydrogen, carbon monoxide and more. Combustible gas is any of a number of fuels that, under normal conditions, are gaseous. Many combustible gases are composed of hydrocarbons (such as methane or propane), hydrogen, carbon monoxide, or mixtures thereof.
These gases are sources of potential heat energy or light energy that can be easily transmitted and distributed through pipes from the point of origin directly to the place of consumption. Fuel systems are necessary to provide the right fuel to a variety of plant users. They must include facilities for the collection, preparation and distribution of fuel to users. Alternative fuels (as needed) must be available at all points of consumption.
The most commonly used are liquid fuel and gaseous fuel. In liquid fuel supplies, at least one pump and its reserve must be steam driven or other reliable energy sources available. Reserve pumping units must be ready for instantaneous start-up in case of failure of the operating unit. This chapter specifies the requirements for the process design of fuel systems used in the oil and gas processing industries.
The main design parameters and guidelines for the design of fuel system processes are discussed. As part of the gas conditioning of the instrument, water is removed from the gas to provide a low dew point. The PCV-110 pressure regulator is used to regulate the gas pressure when the supply pressure exceeds the requirements of the gas turbine fuel system. These are usually shell and tube exchangers that use waste heat from the gas turbine to heat the fuel gas.
Third, a gas injector is more difficult to seal than a diesel injector and tends to cost more, although the cost difference could be reduced if the production volume of gas injectors becomes comparable to that of diesel injectors. Due to the large difference in energy density of natural gas and common gasoline or diesel fuels, additional space is required for natural gas storage. Different types of adsorbents have been developed to store natural gas, mainly methane, at much lower ambient pressure and temperature that could overcome the drawbacks of storing compressed natural gas and liquefied natural gas. For welding, fuel gas is acetylene, with oxygen to achieve a flame temperature high enough to melt metal; for cutting, described below, and for general heating, fuel gas is often propane.
It is one of the most important systems in any oil installation, since fuel gas is the main fuel of the entire plant, the most commonly used fuel in hydrocarbon treatment plants is natural gas because it is available locally and is therefore financially more convenient than others fuels. One of the first was gas lighting, which allowed the widespread adoption of street lamps and lighting of buildings in cities with municipal gas supply. The natural gas fuel tank is a closed container, impermeable to natural gas, with sufficient volume to store fuel to run the engine for a desired period of time. A traditional fuel gas conditioning system starts when gas enters the separator drum, where the liquid is extracted.
When biomass is converted to fuel gas in a gasifier and, subsequently, the fuel gas is burned in the coal furnace, it is called indirect co-combustion. Often confused with gas processing, fuel gas conditioning does not change gases at the molecular level, but rather refers to the separation and removal of liquids and solids. The following diagram illustrates a traditional fuel gas conditioning system and the path the fuel gas will take when it reaches the turbine. An effective fuel gas conditioning system is crucial because it prevents damage to the gas turbine, increases overall system efficiency, and helps limit or avoid unexpected downtime.
EML Manufacturing has extensive knowledge and experience in designing fuel gas conditioning systems for major gas turbine manufacturers. . .