Econamine process

Diglycolamine Systems. The Fluor Econamine process uses digl> co lamine (DGA) to sweeten natural gas. The active DGA reagent is 2-(2-tunino-ethoxy) ethanol, w hich is a primary amine. The reactions of DG, with acid gases are the same as for MEA. Degradation products from reactions with COS and CS2 can be regenerated in a reclaimer. 

Diglycolamine (DGA), is another amine solvent used in the Econamine process (Fig 1-2). Absorption of acid gases occurs in an absorber containing an aqueous solution of DGA, and the heated rich... 

Figure 1-2. The Econamine process (1) absorption tower, (2) regenera-...

Figure 2-3. High-pressure gas-treating plant using Diglycolamine solution (Fluor Econamine process). Courtesy of Fluor Daniel...

DGA = Diglycol amine Jefferson Chemical Co., Fluor patented process (Econamine)... 

Aromex A process for removing aromatic hydrocarbons from petroleum reformate by extrachon with diglycolamine (also called [2-(2-aminoethoxy) ethanol], and DGA). Developed by Howe-Baker Engineers. See also Econamine. 

Econamine A process for removing acid gases from natural gas by selective absorption in diglycolamine (also called [2-(2-aminoethoxy) ethanol], and DGA). Developed by the Fluor Corporation, the El Paso Natural Gas Company, and the Jefferson Chemical Company and widely used. Later versions, developed by Fluor Daniel International, include the Fluor Daniel Econamine and the Econamine FG processes. More than 30 units were operating in 1996. See also Aromex. 

Econamine FG [Flue gas] A process for removing carbon dioxide from flue-gases by dissolution in an aqueous solution of monoethanolamine and a proprietary corrosion inhibitor. Originally developed by the Dow Chemical Company under the designation Gas/Spec FT, the process was acquired in 1989 by the Fluor Corporation and is now licensed by that company. 

This is related to the large amount of heat required during stripping of MEA (4.5 MJ/kg CO2). The model developed by Rubin [23] also offers the possibility to select a novel amine, which is used in Fluors Econamine REG 4-process. The resulting avoidance costs are substantially lower ( 84.2/ton), related to less steam required for regeneration and lower degradation rates. 

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