Energy-Efficient Sulfone Separation Process for the Production of Ultralow Sulfur Diesel by Two-Step Adsorption
- Authors
- Lim, Sam Mok; Kim, Jong-Nam; Park, Jihye; Han, Sang Sup; Park, Jong-Ho; Jung, Tae Sung; Yoon, Hyung Chul; Kim, Sung Hyun; Ko, Chang Hyun
- Issue Date
- 4월-2012
- Publisher
- AMER CHEMICAL SOC
- Citation
- ENERGY & FUELS, v.26, no.4, pp.2168 - 2174
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENERGY & FUELS
- Volume
- 26
- Number
- 4
- Start Page
- 2168
- End Page
- 2174
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/108902
- DOI
- 10.1021/ef201964v
- ISSN
- 0887-0624
- Abstract
- A three-step process for producing ultralow sulfur diesel (S concentration < 10 ppm) is experimentally investigated, consisting of (1) the separation of sulfone in diesel (S concentration > 150 ppm) by adsorption on silica and the subsequent regeneration of silica using a polar solvent, (2) the separation of sulfone in methanol by adsorption on activated carbon and the subsequent regeneration of activated carbon using a nonpolar solvent, and (3) the distillation for the recovery of a nonpolar solvent. Various polar solvents (i.e., acetone and methanol) and nonpolar solvents (i.e., n-butane, n-pentane, and n-hexane) were considered. Methanol and n-butane were found to be good solvents for regenerating sulfone-adsorbed silica and sulfone-adsorbed activated carbon, respectively. The two-step adsorption process was able to substantially reduce the energy consumption during the distillation because the heat of vaporization (320 kJ/kg) of n-butane is much lower than that (1104 kJ/kg) of methanol. This study showed the potential to produce ultralow sulfur diesel with low energy consumption in a continuous separation process.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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