IsoSiv Process Operates Commercially: Linde process concentrates normal paraffins in C to C range to more than 95% with 99.8% recovery
Abstract
Linde's IsoSiv process for recovering normal paraffins from hydrocarbon mixtures is now perking away commercially at a 1000 bbl.-per-day (charge) clip at South Hampton Co.'s plant at Silsbee, Tex. (C&EN, April 16, page 47). The process, licensed by Linde, uses molecular sieves to selectively adsorb normals, pass iso and cyclic compounds. IsoSiv can treat feeds such as light and heavy naphtha, kerosine, and gas oils, boosting C 5 to C 12 normals from 15 to 40% to more than 95%. And it can work up process designs for feedstocks through C 20 . IsoSiv uses twin adsorbers that alternately adsorb and desorb normal paraffins in a pressure swing to give continuous product flow. Beyond this, Linde is cautious with process details. UOP's Molex process also uses sieves to concentrate normals (C&EN, May 22, 1961, page 56). Molex, though not yet in commercial use, is available for license. It gives product having up to 95% C 10 to C 22 normal paraffins ...
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Zeolite 5A selectively adsorbs linear over branched hydrocarbons in the gasoline range.
“For instance, zeolite 3A selectively adsorbs water from gas streams and liquid solvents,12,251,252 and zeolite 5A selectively adsorbs linear over branched hydrocarbons in the gasoline range.”
From Zeolites in Adsorption Processes: State of the Art and Future Prospects (2022) · cites this paper as [254]
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Zeolites in Adsorption Processes: State of the Art and Future Prospects
Pérez-Botella, E., Valencia, S., & Rey, F. (2022) · Chemical Reviews · doi:10.1021/acs.chemrev.2c00140 · Cited by 1,126 · see citing works
Pérez-Botella, E., Palomino, M., Valencia, S., & Rey, F. (2019) · Green Energy and Technology · doi:10.1007/978-981-13-3504-4_7 · Cited by 29 · see citing works
- Venue
- Chemical & Engineering News Archive
- Publisher
- American Chemical Society (ACS)
- Published
- 1962-04-23
- Volume
- 40
- Issue
- 17
- Pages
- 59-63
- ISSN
- 0009-2347 (ISSN-L)
- 2157-4936
- OpenAlex
- W4237246498
- Cited by
- 2
- References
- 0
- Citations by year
- 2022: 1 · 2019: 1
- Type
- other
- Language
- en
- Open access
- closed
- Locations
- Chemical & Engineering News (publishedVersion)
- Topics
- Physical Sciences › Chemistry › Inorganic Chemistry › Zeolite Catalysis and Synthesis
- Physical Sciences › Chemistry › Analytical Chemistry › Petroleum Processing and Analysis
- Physical Sciences › Engineering › Mechanical Engineering › Catalysis and Hydrodesulfurization Studies
- Keywords
- molecular sieves, selective adsorption, pressure swing adsorption, naphtha upgrading, Linde, commercialization
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