Optimal separation of n-paraffins from Kuwait kerosene using a molecular sieve adsorbent
| Autor: | R. S. Al-Ameeri, G. V. Jeffreys, C. J. Mumford, A. M. Al-Damkhi |
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| Rok vydání: | 2007 |
| Předmět: |
Kerosene
Chromatography Renewable Energy Sustainability and the Environment Chemistry General Chemical Engineering Organic Chemistry Molecular sieve Pollution Volumetric flow rate Separation process Inorganic Chemistry Fuel Technology Adsorption Chemical engineering Mass transfer Particle size Zeolite Waste Management and Disposal Biotechnology |
| Zdroj: | Journal of Chemical Technology & Biotechnology. 37:215-228 |
| ISSN: | 1097-4660 0268-2575 |
| DOI: | 10.1002/jctb.280370402 |
| Popis: | A study has been made of the vapour-phase adsorptive separation of n-alkanes from Kuwait kerosene using zeolite molecular sieves (LMS-5A). The object was to identify the optimum operating conditions, in terms of flow rate, adsorption temperature and zeolite particle size for the separation of n-alkanes from kerosene, so that the remaining stock would also be of marketable quality. The effect of these conditions on the height of the mass transfer zone (HMTZ) and the dynamic capacity (Ad) of zeolite was also investigated. The adsorptive separation process comprised one cycle of adsorption using a fixed bed of zeolite type-5A. The bed was fed with kerosene vapour until equilibrium had been achieved, whereby the n-paraffins were adsorbed and the denormalized material excluded. The processes were carried out isobarically at one atmosphere. The optimum operating conditions were found to be a feed flow rate of 33.33 × 10−9 m3 s−1, an adsorption temperature of 643 K and a zeolite pellet fraction size of 1.0–2.0 × 10−3m. This yielded an HMTZ value of 0.206 m and an Ad of 9.653 × 10−2 kg n-paraffins kg−1 zeolite. The data will serve as a basis for the design of commercial plant. |
| Databáze: | OpenAIRE |
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