How does an amine system work?
Amine treating plants remove CO2 (carbon dioxide) and H2S (hydrogen sulfide) from natural gas. The process is known as gas sweetening or acid gas removal, using various alkanolamines, commonly referred to as amines.
What is a common use of an amine system?
The most commonly used amines in industrial plants are the alkanolamines DEA, MEA, and MDEA. These amines are also used in many oil refineries to remove sour gases from liquid hydrocarbons such as liquified petroleum gas (LPG).
What is amine in LNG?
An amine plant is used to remove essentially all of the CO2 and H2S from the inlet gas stream. In order for the LNG Plant to operate properly and reliably, the CO2 should be removed to a level of less than 50 ppmv.
What is the use of amine in refinery?
An amine system (olamine system) removes hydrogen sulfide and carbon dioxide from various fuel gases produced in a refinery, so as to prevent air pollution when the gases are burned.
Is amine a gas or liquid?
In natural gas processing, an “amine” is an aqueous solution containing several alkylamines. A variety of amines are used in the sweetening of acid gases. Which amine solution is used depends on several factors. These liquid amines come together with the sour gas and absorb the H2S and CO 2 in them.
Is amine a solvent?
Amine-based solvents have been discovered to have good absorbability to CO2 gas. Accordingly, it is the most mature solvent used in CO2 absorption [29,30].
What is an amine system?
An amine system (olamine system) removes hydrogen sulfide and carbon dioxide from various fuel gases produced in a refinery, so as to prevent air pollution when the gases are burned.
What is the use of amine treatment?
Amine Treatment. An amine treating unit captures hydrogen sulfide and other acidic gases from the refinery gas streams and concentrates them into an amine solution. It is also used to capture acidic gases from raw or sour natural gasses. Amine gas sweetening is a proven technology that removes H₂S and CO₂ from natural gas…
How does an amine regenerator work?
The rich amine then flows to a regenerator, where heat breaks the weak bond between the amine and the acid gas, releasing the acid gas and regenerating the amine for re-use. The acid gases exit the top of the regenerator for further treatment while the lean amine is recirculated back to the contactor in a recirculating loop.
What are the operating problems encountered in amine systems?
The operating problems encountered in amine systems are usually linked to design, where trouble-free operation results from an appropriate design of the unit as well as a proper solution control. Amine solutions frequently become contaminated with amine degradation products, heat-stable salts (HSS), heavy hydrocarbons, and particulates.
