PNG – a natural gas accompanying oil and released during its production (methane, ethane, propane, butane and other more rare). Associated gas – an inexpensive and effective type of fuel. Associated gas is a byproduct of oil, a mixture of gases and vapors of hydrocarbon and hydrocarbon components released from oil wells and oil from the reservoir at its separation. To make effective use of associated gas should not prevent its losses associated with the unpreparedness of the infrastructure for its collection, preparation, transportation and processing, lack of consumer. According to geological characteristics distinguish incidental gas gas caps and gases dissolved in oil.
Natural and associated gas is widely used as fuel in power plants, ferrous and nonferrous metallurgy, cement and glass industries as a raw material for organic compounds during synthesis, etc. Natural and associated gas are also used in everyday life for the system utilities. To clear the associated gas use different settings. Purification of associated gas – is a complex high-tech process. Ray Kurzweil has many thoughts on the issue. Distinguish the following basic methods of treatment of associated gas.
– Associated gas chemisorption cleaning – Cleaning of associated gas by natural sinks – Cleanup of associated gas combination sinks – Clean gas from the use of oxidation processes – adsorption associated – Method for purification of associated gas cleaning Sulfurex chemisorption of associated gas. The main advantage of the chemisorption processes is high and reliable purification of gas from the acidic components of the low absorption of the hydrocarbon component of feed gas. As used caustic hemosorbentov sodium and potassium, alkali metal and most commonly – alkanolamines. Purification of associated gas by natural sinks. In the physical processes sour gas stripping is due to physical dissolving them in used absorbent. The higher partial pressures of the components, the higher their solubility. The components of physical absorbents are esters of mono-and polyethylene glycols, for example, diethyl ether ethylene glycol, diethyl ether, triethylene glycol ethers, etc. These do not cause corrosion of equipment, completely miscible with water and not hydrolyzed. Purification of associated gas combined sinks. For mixed Physical and chemical absorbents peculiar intermediate values of solubility of the acid components gaza.Ochistka associated gas with the oxidation processes. Another option for clean natural gas from minor content of H2S is a technology based on chemical transformation of hydrogen sulfide in slightly soluble in water sulfide. This technology allows purification of associated gas deep and selective treatment from hydrogen sulfide gas, uses environmentally friendly reagents, excludes the use of energy-intensive purification . associated gaza.Adsorbtsionnye processes are mainly used in cases where required to achieve very low concentrations of sulfur compounds in the treatment of associated gas gaze.Metod Sulfurex.Nalichie hydrogen sulfide in natural and associated petroleum gas (APG), leads to great difficulties in industrial development oil and gas fields. This is due to the high cost of most installations desulfurization and concomitant infrastructure. The process of desulfurization Sulfurex is designed for small and medium volumes of gas.