Acid Gas Removal
OASE®(aMDEA®) / PuraTreat™A / Ucarsol™）
Summary
The technologies to remove acid gases such as CO2 and H2S are required in the plants of naturals gas processing , oil refinery , petrochemical and fertilizer etc.
OASE(aMDEA) Acid Gas Removal Process
BASF Aktiengesellschaft of Germany has authorized TOYO to grant license and furnish a basic design package on its behalf for the OASE(aMDEA) process since 1984. The aMDEA process is an energy efficient acid gas removal process that employs an activated MDEA solvent for CO2 absorption. The activator accelerates the rate of CO2 absorption and is considered to be a quasi-physical absorption system. TOYO has sufficient experience in the design and construction of OASE(aMDEA) CO2 removal units and has built 9 plants in Eastern Europe, Japan, Korea, Southeast Asia and Middle East respectively for ammonia production and natural gas sweetening. TOYO is also performing a number of optimization studies for CO2 removal in various process plants such as ammonia, natural gas sweetening, oxo-gas purification etc. These studies are not only for grassroots process plants but also for revamps that include solution swap as well.
Pura Treat A acidic gas removal process (jointly developed by BASF SE and Toyo Engineering Corporation)
BASF and TOYO unveiled the Pura Treat A Process in 2007. The solvent used in this process exhibits highly selective absorbent properties in the removal of sulfur derivatives and other impurities, such as H2S and carbonyl sulfide contained in the synthetic gas manufactured by gasifying coal and heavy oil materials. It also enables significant energy conservation. TOYO is currently conducting optimization studies, licensing and basic and detailed designs using the process.
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UCARSOL ACID GAS REMOVAL PROCESS (THE DOW CHEMICAL COMPANY., U.S.A.)
TOYO executed a general license agreement with THE DOW CHEMICAL COMPANY. (Dow) for the Ucarsol Process in 1995. TOYO offers the process specifically for H2S removal or selective removal of H2S acid gas containing both H2S and CO2. The Ucarsol solvent is unique containing a proprietary activator of Dow in MDEA solvent for the above-mentioned purpose. TOYO is licensing this process with its proprietary design, and has an experience in Japan for constructing a unit for H2S removal from a refinery complex off gas stream.
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| ※ | aMDEA is a registered trademark of BASF SE. |
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| ※ | PuraTreat A is a trademark of BASF SE. |
| ※ | UCARSOL is a trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow. |
