Treat LPGs with amines
- Fluor Daniel, Inc., Irvine, CA (United States)
- Koch Engineering, Inc., Wichita, KS (United States)
- Bryan Research and Engineering, Inc., Bryan, TX (United States)
In recent years, there has been increasing interest in sweetening liquefied petroleum gases (LPGs) with amines. However, limited data and design information are available in the literature. This article reviews the fundamental aspects of LPG amine treaters and includes guidelines, design considerations and alternatives for static mixers, jet eductor mixers and columns with structured packing, random packing and sieve trays. All of these current design methods are compared based on plant operating data. Guidelines are given for sweetening LPGs with amines including amine type, concentration, filtration, temperature, loading, circulation rate and water-wash systems. Also covered is the contacting method used in the absorber. Any of the commonly available amines such as monoethanolamine (MEA), diethanolamine (DEA), diglycolamine (DGA), methyl diethanolamine (MDEA) and MDEA-based solvents usually perform satisfactorily. Design criteria for distributors and LPG disperser plates, amine filtration and LPG settlers and coalescers are important. The contacting method is also important and includes jet eductor mixers, static mixers, and columns with sieve trays, random packing and structured packing.
- OSTI ID:
- 533019
- Journal Information:
- Hydrocarbon Processing, Vol. 76, Issue 9; Other Information: PBD: Sep 1997
- Country of Publication:
- United States
- Language:
- English
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