Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas
This investigation is concerned with the separation of gas mixtures using a novel concept of rapid pressure swing absorption (RAPSAB) of gas in a stationary absorbent liquid through gas-liquid interfaces immobilized in the pore mouths of hydrophobic microporous membranes. The process is implemented in a module well-packed with hydrophobic microporous hollow fiber membranes. Before we proceed to RAPSAB studies with reactive absorbents, it is necessary to make an effort to compare experimental results with those predicted by the models. The only model developed so far involved a type of RAPSAB cycle (Mode 3) for which limited data were acquired earlier. A number of experiments have, therefore, been conducted in this mode to characterize the absorption part of the cycle. A new and more compact module (Module No. 5) was made using 840 fibers and a teflon casing inside the stainless steel shell to exactly define the fiber packing density. This allows an exact calculation of Happel's free surface radius. Experiments were carried out using a CO[sub 2]-N[sub 2] mixture of around 10% CO[sub 2] and balanced N[sub 2] using both modules 4 and 5 over a wide range of absorption times.
- Research Organization:
- Stevens Inst. of Tech., Hoboken, NJ (United States). Dept. of Chemistry and Chemical Engineering; New Jersey Inst. of Tech., Newark, NJ (United States). Dept. of Chemical Engineering, Chemistry and Environmental Science
- Sponsoring Organization:
- USDOE; USDOE, Washington, DC (United States)
- DOE Contract Number:
- FG22-90PC90300
- OSTI ID:
- 6987821
- Report Number(s):
- DOE/PC/90300-T7; ON: DE93004932
- Country of Publication:
- United States
- Language:
- English
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Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas. Technical progress report, November 1, 1992--January 31, 1993
Rapid pressure swing absorption cleanup of post-shift reactor synthesis gas
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