Facilitated transport membrane hybrid systems for olefin purification
- BP Research, Cleveland, OH (United States)
A new membrane system has been developed by BP for refinery and chemical plant olefin purification and recovery. This facilitated transport system, coupled with distillation, offers lower capital and operating costs than conventional distillation alone. Initial results on lab scale hollow fiber devices indicate membrane flux ranging from 8.75 {times} 10{sup {minus}6} to 8 {times} 10{sup {minus}5} m{sup 3}/m{sup 2}/sec (2.5 to 23 scfd/ft{sub 2}) and selectivities from 150 to 300. Pilot plant experiments on propylene/propane and ethylene purge gas recovery over three to six months duration show membrane stability and product purity of 98.5% or greater using refinery grade propylene feed. Hybrid system optimization data for membranes and distillation indicate that using a side draw from the distillation tower provides advantages in terms of membrane area, purity of feed to the membrane, and low per-pass recovery coupled with high overall propylene recovery. Membrane performance data under various conditions are also presented. In addition to performance data, economic evaluation and energy savings are discussed.
- Sponsoring Organization:
- USDOE
- OSTI ID:
- 145122
- Report Number(s):
- CONF-911049-; ISSN 0149-6395; TRN: TRN: 93:000018-025
- Journal Information:
- Separation Science and Technology, Vol. 28, Issue 1-3; Conference: 7. symposium on separation science and technology for energy applications, Knoxville, TN (United States), 20-24 Oct 1991; Other Information: PBD: Jan-Feb 1993
- Country of Publication:
- United States
- Language:
- English
Similar Records
Olefin recovery via chemical absorption
Magnetically stabilized fluidized bed for gas separations: Olefin-paraffin separations by {pi}-complexation