Journal of Liaoning Petrochemical University
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Removal of Basic Nitrogen Compounds FromOil by Adsorption With RE/Y Zeolite
ZHU Jin-zhu, FENG Rui-jiang, SHEN Jian
Abstract371)      PDF (1764KB)(190)      
The removal of basic nitrogen compounds from model oil (consisting of quinoline and dodecane as solvent) over Rare-earth-metal-based Y molecular sieve as adsorbent in batch-wise reactor. The optimum adsorption temperature was tested and thermodynamics and kinetics of adsorption were investigated. The results showed that the optimum adsorption temperature was 393K,the nitrogen removal can reach 55.8%, and statically saturated adsorption capacity was 23.56 mg/g. The adsorption process over RE/Y zeolite was agreed well with the Langmuir model and pseudo-second-order rate model, and was an endothermic chemisorption which run spontaneously, the activation energy was 11.49 kJ/mol.
2012, 32 (2): 12-15.
Preparation and Adsorption Performance of q-CS/TEOS Hybrid Membranes
WANG Rui, FENG Rui-jiang, WANG Ji-lin, AO Min
Abstract430)      PDF (2298KB)(301)      
 
A series of hybrid membranes composed of quaternized chitosan (q-CS) and tetraethoxysilane (TEOS) were prepared by sol-gel method,taking q-CS and the TEOS as organic and inorganic component respectively. The structure of the hybrid membranes was investigated by FT-IR. The adsorption performance of the membranes for Cr(Ⅵ) ions from aqueous solution was also studied. The effect of adsorption time, the pH value of solution and temperature of the adsorption on adsorption results were studied and show that the suitable membrane is composed of 38wt% TEOS, and the optimum adsorption conditions were carried out at 35 ℃ for 180 minutes with pH value of 5.0~8.0.
2011, 31 (1): 13-16. DOI: 10.3696/j.issn.1672-6952.2011.01.004