“The key to wisdom is knowing all the right questions.” John A. Simone, Sr.
“Great art presupposes the alert mind of the educated listener” -- Arnold Schoenberg (1874 – 1951) Austrian and later American composer
If you follow the Desulfurization Blog, you know that one of my key search strategies is harvesting and using strategic key words. Today’s desulfurization key word alert is …
"Sulfur breakthrough"
A variation on the key word is …
"breakthrough point" sulfur
Using either or both of the above to search Google® , ScienceDirect, and your other favorite sources, will produce a list similar to the articles cited below …
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Reactive adsorption of sulfur compounds in diesel on nickel ...by JG Park - 2008 -
... 77 K using a Micromeritics (ASAP 2010) surface area measurement apparatus. .... 5 shows the dependence of sulfur breakthrough on the type of mesoporous ...
linkinghub.elsevier.com/retrieve/pii/S0926337307004663
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Desulfurization of high-sulfur jet fuel by mesoporous π ...by H Chen - 2009
... by physical adsorption of N2 at −196 °C using Micromeritics ASAP 2010. ..... 7 show the sulfur breakthrough curves for the light fraction of JP-5 (841 ...
linkinghub.elsevier.com/retrieve/pii/S0009250909005818
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Catalysis Reviews Precious Metal Catalysts Supported on Ceramic ...R. J. Farrauto et al. 142. Downloaded At: 11:48 28 January 2010 ...... traces of sulfur breakthrough. 3.6. High Pressure Data for Pt-Re and Pt-containing ...
pdfserve.informaworld.com/878570__773231457.pdf
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NRC-CISTI: DiscoverLow temperature H2S dry-desulfurization with zinc oxide Garces, Hector F. Galindo, Hugo M. Garces, Luis J. Hunt, Jennifer Morey, Aimee Suib, Steven L.Microporous and Mesoporous Materials, ISSN: 13871811, Vol: 127, Issue: 3, Date: February, 2010, Pages: 190-197 Create journal alertKeywords: Zinc oxide adsorbent; H2S; Deactivation model; Sulfur breakthrough; Dry-desulfurizationAbstract: A commercially available zinc oxide with a bimodal micro- and mesopore size distribution was investigated as a desulfurizing sorbent in a fixed-bed reactor at low temperatures from 60 to 400°C. Fresh and sulfided materials were characterized by X-ray diffraction (XRD), BET specific surface area, pore volume, SEM/EDX, TGA/DSC and in situ X-ray diffraction (XRD). The sorbent舗s sorption capacity at breakthrough increased with the sulfidation temperature reaching 87% of the theoretical value for desulfurization at 400°C. A deactivation model that considers the activity of the solid reactant was used to fit the experimental data. Good agreement between the experimental breakthrough curves and the model predictions was obtained.
source: http://discover-decouvrir.cisti-icist.nrc-cnrc.gc.ca/dcvr/ctrl?action=shwart&aix=0&aid=12989823
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Breakthrough Characteristics of Reformate Desulfurization Using ZnO Sorbents for Logistic Fuel Cell Power Systems
AbstractFull Text HTMLHi-Res PDF[298 KB]PDF w/ Links[250 KB]Hongyun Yang†, Ryan Sothen, Donald R. Cahela and Bruce J. Tatarchuk*
Center for Microfibrous Materials Manufacturing, Department of Chemical Engineering, Auburn University, Auburn, Alabama 36849
Ind. Eng. Chem. Res., 2008, 47 (24), pp 10064–10070
DOI: 10.1021/ie8008617
Publication Date (Web): November 21, 2008
Copyright © 2008 American Chemical Society
* To whom correspondence should be addressed. Tel.: (334) 844-2023. Fax: (334) 844-2065. E-mail: tatarbj@auburn.edu., † Current address: IntraMicron Inc., 368 Industry Drive, Auburn, AL 36832.
AbstractSulfur breakthrough behaviors during reformate desulfurization were investigated using a novel ZnO-based sorbent with minimized mass transfer resistance. The presence of CO, CO2, or water affected the breakthrough characteristics of H2S and carbonyl sulfide (COS). CO and CO2 did not significantly affect the reaction between H2S and ZnO, but they reacted with H2S to form COS, which cannot be efficiently removed by ZnO. The mechanisms of COS formation via two different pathways were also investigated. CO reacted with H2S to form COS homogeneously; CO2 reacted with H2S heterogeneously on the sulfide surface. COS formation by CO and CO2 was suppressed by H2 and water. Water also severely hindered the reaction between ZnO and H2S and significantly decreased H2S breakthrough time. At low water concentrations, sulfur breakthrough was determined by the homogeneous COS formation; at high water concentrations, it was controlled by H2S breakthrough. Capacity loss due to COS formation and adsorption of water was also observed. Novel sorbent and process designs are required to improve the desulfurization performance.
source: http://pubs.acs.org/doi/abs/10.1021/ie8008617
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Deep Desulfurization of Model Gasoline by Adsorption on Mesoporous CeMCM-41
Authors: T. Ke a;H. Xin a
Affiliation: a School of Material and Chemical Engineering, Liaoning Institute of Technology, Jinzhou, China
DOI: 10.1080/10916460903070611
Published in: Petroleum Science and Technology, Volume 28, Issue 6 April 2010 , pages 573 - 581
Abstract
Cerium atoms have been introduced into the framework of MCM-41 by a hydrothermal synthesis method with cetyltrimethylammonium bromide (CTMABr) as template, sodium silicate as silica source, and cerium chloride as cerium source. Desulfurization of various model fuels containing about 500 μg/g sulfur were studied over the synthesized CeMCM-41 with a liquid hourly space velocity of 7.5 hr-1 at ambient conditions. The sulfur adsorption capacity was 10.0, 11.8, 14.0, and 15.4 mg(S)/g adsorbent for thiophene, dibenzothiophene (DBT), 4,6-dimethyldibenzothiophene (4,6-DMDBT), and tetrahydrothiophene (THT), respectively. The charges on S atom in thiophene, DBT, 4,6-DMDBT, and THT, calculated by using density functional theory (DFT), are -0.159, -0.211, -0.214, and -0.298, respectively, implying that the S-M bond between the adsorption sites and thiophene is much weaker than that between the adsorption sites and DBT, 4,6-DMDBT, or THT.
Keywords: adsorption desulfurization; CeMCM-41; DFT; model fuels
source: http://www.informaworld.com/smpp/content~content=a919843852&db=all
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New Sorbents for Desulfurization of Diesel Fuels via π-Complexation
Arturo J. Herna´ ndez-Maldonado and Ralph T. Yang
Dept. of Chemical Engineering, University of Michigan, Ann Arbor, MI 48109
DOI 10.1002/aic.10074 Published online in Wiley InterScience (www.interscience.wiley.com).
source: deepblue.lib.umich.edu/bitstream/2027.42/34251/1/10074_ftp.pdf
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Desulfurization of high-sulfur jet fuel by mesoporous π-complexation adsorbents
Chemical Engineering Science, Volume 64, Issue 24, 16 December 2009, Pages 5240-5246
Hao Chen, Yuhe Wang, Frances H. Yang, Ralph T. Yang
Source: ScienceDirect
Low temperature H2S dry-desulfurization with zinc oxide
Microporous and Mesoporous Materials, Volume 127, Issue 3, February 2010, Pages 190-197
Hector F. Garces, Hugo M. Galindo, Luis J. Garces, Jennifer Hunt, Aimee Morey, Steven L. Suib
Source: ScienceDirect
Effect of hydrogen sulfide on the direct internal reforming of methane in solid oxide fuel cells
Applied Catalysis A: General, Volume 354, Issues 1-2, 15 February 2009, Pages 1-7
Tyler R. Smith, Anthony Wood, Viola I. Birss
Source: ScienceDirect
Effect of thermal oxidation of activated carbon surface on its adsorption towards dibenzothiophene
Chemical Engineering Journal, Volume 148, Issues 2-3, 15 May 2009, Pages 242-247
Moxin Yu, Zhong Li, Qiaona Ji, Shuwen Wang, Dagen Su, Y.S. Lin
Source: ScienceDirect
Direct synthesis of Cu–SBA-16 by internal pH-modification method and its performance for adsorption of dibenzothiophene
Microporous and Mesoporous Materials, Volume 130, Issues 1-3, May 2010, Pages 248-254
Asma Tufail Shah, Baoshan Li, Zaki Elgin Ali Abdalla
Source: ScienceDirect
Nature and spatial distribution of sulfur species in a sulfated barium-based commercial lean NOx trap catalyst
Catalysis Today, In Press, Corrected Proof, Available online 18 February 2010
Jae-Soon Choi, William P. Partridge, Michael J. Lance, Larry R. Walker, Josh A. Pihl, Todd J. Toops, Charles E.A. Finney, C. Stuart Daw
Source: ScienceDirect
Liquid phase desulfurization of jet fuel by a combined pervaporation and adsorption process
Fuel Processing Technology, Volume 90, Issue 3, March 2009, Pages 458-464
Y. Wang, J. Latz, R. Dahl, J. Pasel, R. Peters
Source: ScienceDirect
Mesoporous silica as selective sorbents for removal of sulfones from oxidized diesel fuel
Microporous and Mesoporous Materials, Volume 124, Issues 1-3, August-September 2009, Pages 94-99
A. Nanoti, S. Dasgupta, A.N. Goswami, B.R. Nautiyal, T.V. Rao, B. Sain, Y.K. Sharma, S.M. Nanoti, M.O. Garg, P. Gupta
Source: ScienceDirect
Deep desulfurization of model gasoline by selective adsorption on Ag+/Al-MSU-S
Catalysis Today, Volume 149, Issues 1-2, 15 January 2010, Pages 138-142
Chunmei Meng, Yunming Fang, Lijun Jin, Haoquan Hu
Source: ScienceDirect
Influence of thiophene on the isooctane reforming activity of Ni-based catalysts
Journal of Catalysis, Volume 271, Issue 1, 12 April 2010, Pages 140-152
Joseph M. Mayne, Andrew R. Tadd, Kevin A. Dahlberg, Johannes W. Schwank
Source: ScienceDirect
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