Technology Alerts: ADSORPTIVE DESULFURIZATION

CATEGORY: ADSORPTIVE DESULFURIZATION
Equilibrium, Kinetic, and Thermodynamic Studies on Adsorptive Desulfurization onto CuICeIVY Zeolite

Type	Journal Article
Author	Hua Song
Author	Youxin Chang
URL	http://dx.doi.org/10.1021/ie403177t
Volume	53
Issue	14
Pages	5701-5708
Publication	Industrial & Engineering Chemistry Research
Date	April 9, 2014
Journal Abbr	Ind. Eng. Chem. Res.
Abstract	Researchers prepared CuIY, CeIVY, and CuICeIVY zeolites and studied the adsorptions of toluene, cyclohexene, and pyridine. Results indicate that the effects on the metal ion-exchanged Y zeolites for sulfur removal decrease in the order pyridine > cyclohexene > toluene. The CuICeIVY not only has high sulfur adsorption capacity, similar to CuIY, but also has high selectivity for sulfur compounds, similar to CeIVY. The isotherms and kinetics of benzothiophene (BT) adsorption from 1-octane onto CuICeIVY were studied, and the thermodynamic parameters for the adsorption of BT were calculated. Results reveal that the isothermal equilibrium can be represented by the Langmuir model and that maximum adsorption capacities (qm) increase with an increase of temperature. The kinetics for the adsorption process can be described by either the Langmuir model or a pseudo-first-order model. The adsorption is spontaneous and exothermic.

Technology Alerts

Type	Journal Article
Author	Sumaya A. Mohamed
Author	Dhallia Mamoun Beshir
URL	Free Full Text Source: http://www.researchgate.net/profile/Ali_Rabah/publication/267640091_Simulation_and_characterization_in_the_refining_industry_A_review/links/545718980cf2cf51648041b4.pdf
Volume	5
Issue	3
Pages	26-30
Publication	Journal of Petroleum Technology and Alternative Fuels
Date	2014
Abstract	Authors' objective is to review the simulation technologies and characterization techniques which have been used in the refining industry. It is found that simulation can be used in crude oil scheduling, predicting wax preciptiation, asphaltene despostion, and for fractionation of crude oil based on equilibrium stage relations. The review clearly illustrates that the spectroscopic techniques (IR/FTIR, NMR, NIR); chromatographic techniques; true boiling point; solvent precipitation; refractive index; differential scanning calorimeter and thermogravimetry; and near-infrared region are mostly used in characterizing crue oil.