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Desulfurization and bio-regeneration of adsorbents with Magnetic P. delafieldii R-8 Cells

Paper ID Volume ID Publish Year Pages File Format Full-Text
52062 46864 2008 5 PDF Available
Title
Desulfurization and bio-regeneration of adsorbents with Magnetic P. delafieldii R-8 Cells
Abstract

Superparamagnetic Fe3O4 nanoparticles are prepared with coprecipitation method followed by modification with ammonia oleate. Magnetic P. delafieldii R-8 cells can be prepared by mixing the cells with magnetite nanoparticles. Saturated magnetization of magnetic cells is about 7.41 emu/g. The pH value of magnetic suspension has significant influence on the desulfurization activity of magnetic cells. Desulfurization of the magnetic cells prepared with pH 7.0 magnetic suspension has similar activity with free cells. When the magnetic cells were used in the bioregeneration of desulfurization adsorbents Ag-Y, the concentration of dibenzothiophene (DBT) and 2-hydroxybiphenyl (2-HBP) with free cells is a little higher that that with magnetic cells. Adsorption capacity of the regenerated adsorbent is 93% that of the fresh one after being desorbed with magnetic P. delafieldii R-8, dried at 100 °C for 24 h and calcined in the air at 500 °C for 4 h.

Keywords
Desulfurization; Adsorption; P. delafieldii R-8; Bio-regeneration; Dibenzothiophene; Superparamagnetic; Nanoparticles
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 3, 1 March 2008, Pages 376–380
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us