Amine gas treating, also known as amine scrubbing, gas sweetening and acid gas removal, refers to a group of processes that use aqueous solutions of various alkylamines (commonly referred to simply as amines) to remove hydrogen sulfide (H 2 S) and carbon dioxide (CO 2) from gases.

Rich amine refers to the amine that is used in the gas treating process and absorbs hydrogen sulfide and carbon dioxide. From: Cryogenic Valves for Liquefied Natural Gas Plants, 2022

2019年12月3日 · What is lean amine and Rich amine? In the absorber unit, an amine solution absorbs H2S and CO2 molecules from the feed gas in order to “sweeten” the upflowing gas stream. The rich amine must be sent to a regenerator unit (typically comprised of a stripper with a reboiler) to be converted back into fresh “lean” amine for recycling into ...

2021年6月14日 · The amine leaving the bottom of the tower is loaded with CO 2 and H2S and is known as rich amine. This rich amine passes through a regenerator where contaminants are stripped out of the chemical to make it lean amine again.

Amine gas treatment also known as Gas sweetening, Amine scrubbing, or acid gas treatment is the process that removes H2S/CO2 and mercaptan compounds from the acid gas streams by absorption into aqueous solutions called Alkanolamines or amines.

Many “rules of thumb” are widely used in the design and operation of amine sweetening units. These rules have been developed over the years and most engineers accept them even though many have little familiarity with how important they may or may not be.

The biggest key factor in amine contactor operation in hydroprocessing units is controlling the lean amine flow and the lean and rich amine loading. We have seen corrosion in rich amine piping likely due to elevated H2S loadings and higher velocities (both lean and rich), especially when unit rates are changed quickly.

In chemistry, amines (/ əˈmiːn, ˈæmiːn /, [1][2] UK also / ˈeɪmiːn / [3]) are compounds and functional groups that contain a basic nitrogen atom with a lone pair.

The Rich Amine Flash Drum is typically a large horizontal drum and usually provides about 30 minutes of holdup of amine solution. This long residence time allows the amine solution to settle and flash off entrained hydrocarbon gases.

2020年9月16日 · Amine loading is calculated as the mole ratio of acid gas to the solvent. Rich amine loading (RAL) is referred to the acid gas absorber bottoms liquid which is rich in acid gas and similarly Lean amine loading (LAL) is referred to the bottom of the striping column which is lean in acid gas.