alexa Vanadium Pyrophosphate Catalyst: Core-shell Morphology And Attrition Resistance
ISSN: 2161-0401

Organic Chemistry: Current Research
Open Access

Like us on:
OMICS International organises 3000+ Global Conferenceseries Events every year across USA, Europe & Asia with support from 1000 more scientific Societies and Publishes 700+ Open Access Journals which contains over 50000 eminent personalities, reputed scientists as editorial board members.

Open Access Journals gaining more Readers and Citations

700 Journals and 15,000,000 Readers Each Journal is getting 25,000+ Readers

This Readership is 10 times more when compared to other Subscription Journals (Source: Google Analytics)

3rd International Conference on Organic and Inorganic Chemistry
July 17-19, 2017 Chicago, USA

Marco G Rigamonti, Simone Casagrande He Li, Nooshin Saadatkhah and Gregory S Patience
Polytechnique Montreal, Canada
ScientificTracks Abstracts: Organic Chem Curr Res
DOI: 10.4172/2161-0401-C1-019
Abstract
Exothermic heterogeneous catalytic reactors are difficult to design when facing hotspots, radial and axial concentration and temperature gradients and run-away. Cylindrical pellets are the typical form for catalysts in fixed beds and the resulting long internal diffusion lengths limits the kinetics. Fluidized bed minimizes diffusional limitations with catalyst powders of 70 μm in diameter. Jet velocities on the order of 50 m s-1 mix the gas and solids thoroughly, resulting in high heat and mass transfer rates. However, the catalyst must withstand severe mechanical stresses induced by the jets. Creating attrition resistant porous micro-spheres is fundamental to compete economically with fixed bed reactor technology. Here, we synthesize Vanadium Pyrophosphate Catalyst (VPP) as a template material to examine the effect of binders and spray drying conditions on attrition resistance and particle shape, size and porosity. A wet media mill (Netzsch mini-fer) ground commercial VPP precursor to a suspension of 7 μm and 0.5 μm primary particles in water. We tested several combinations of binders and additives including colloidal silica, polyvinyl alcohol, NaOH or H3PO4. A two fluid nozzle atomized the slurry inside a 0.8 m diameter drying chamber at 250ºC. EDS elemental mapping images demonstrate that the silica migrates to the surface during the drying process and forms a shell. Longer milling time achieves a smaller primary particle and the ASTM attrition test confirms a higher attrition resistance.
Biography

Marco G Rigamonti has studied Chemical Engineering at Polytechnique of Milan and graduated with top marks under the supervision of Prof. F Gatti in 2014. Currently, he is pursuing a PhD in Polytechnique de Montreal with Prof. G Patience, working on spray drying, computational analysis and scale up for Li-ion battery manufacturing and catalyst for fluidized bed reactors.

Email: [email protected]

image PDF   |   image HTML
 

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri & Aquaculture Journals

Dr. Krish

[email protected]

1-702-714-7001Extn: 9040

Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001Extn: 9040

Clinical Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

Food & Nutrition Journals

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

General Science

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics & Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Materials Science Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Nursing & Health Care Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

Ann Jose

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001Extn: 9042

 
© 2008- 2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version