04/01797 Process for the removal of impurities from gas streams: Hwang, S.-C. et al. U.S. Pat. Appl. Publ. US 2003 143,140 (Cl. 423-210; B02D53/60), 31 Jul 2003, Appl. 59,459
- Publisher
- Elsevier Science
- Year
- 2004
- Weight
- 172 KB
- Volume
- 45
- Category
- Article
- ISSN
- 0140-6701
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✦ Synopsis
03 Gaseous fuels (transport, storage) A fast and simple ~H NMR spectroscopic method was developed for the concentration measurement of aromatic, olefinic and aliphatic fractions in gasoline samples. Simultaneously, individual components such as benzene, methyl tert-butyl ether and several dienes could be determined. The method relies on only a few, well-established assumptions about the molecular compositions and is therefore applicable to a broad range of gasolines. It is well suited for laboratories with high sample throughput since measurement time is short and all concentrations are determined within one NMR experiment. The method was applied to commercial gasolines and samples used in European round robin tests. Comparisons of NMR and round robin test results showed excellent agreement.