UPGRADATION OF SULFOLANE PROCESS USING COSOLVENTS
IR@IIP: CSIR-Indian Institute of Petroleum, Dehradun
View Archive Info| Field | Value | |
| Creator |
Nautiyal,B.R
Khanna,M.K Nanoti,S.M Prasad,Guru Paul,Dharam Rawat,B.S Garg,M.O |
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| Date |
2010-05-17T06:48:44Z
2010-05-17T06:48:44Z 2010-05-17T06:48:44Z |
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| Identifier |
Proceedings of PETROTECH-2003,January 9-12, 2003, New Delhi
http://hdl.handle.net/123456789/569 |
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| Description |
Pure aromatics like Benzene, Toluene and Xylenes are primary feed stocks for the petrochemical
industry. With the growing demand for petrochemicals more and more extraction capacity will be
needed. Commercial extraction units for the production of pure aromatics, worldover use
Sulfolane (more than 160 units) as solvent, followed by tetra ethylene glycol (more than 40 units).
These solvents have high selectivity and optimum capacity. To enhance the capacity of these
existing units, co-solvent have been tried which enhance the capacity of existing solvents. For
example, CAROM process by UOP uses tetra ethylene glycol + some glycol ethers as cosolvents.
The same can be considered to enhance the capacity of sulfolane units.
In this study, attempts have been made for the detailed studies on extraction of aromatics from
naphtha reformate (60-90°C) fraction and model hydrocarbons (representing naphtha reformate
fraction) as feedstocks with sulfolane+ co-solvents under varying operating conditions followed by
the solvent recovery step, with varying operating parameters i.e. cosolvent content of sulfolane,
solvent to feed ratio, extraction temperature, etc. The results obtained in continuous extraction
runs showed that S/F ratios of 2 to 3 is sufficient for extraction of aromatics in optimum yield and
purity as compared to S/F ratio 4-6, in case of Sulpholane process.
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| Language |
en_US
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| Subject |
Co-Solvent
Extraction Sulpholane Selectivity Capacity Extract Yield Extract Purity |
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| Title |
UPGRADATION OF SULFOLANE PROCESS USING COSOLVENTS
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| Type |
Article
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