alexa Effect Of Hydrogen On Catalytic Activity Of Ziegler-natta Catalysts Prepared By Different Methods In Ethylene Polymerization
ISSN: 2150-3494

Chemical Sciences Journal
Open Access

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)

Share This Page

Additional Info

Loading
Loading Please wait..
 

4th European Chemistry Congress
May 11-13, 2017 Barcelona, Spain

Thanyathon Niyomthai, Bunjerd Jongsomjit and Piyasan Praserthdam
Chulalongkorn University, Thailand
Posters & Accepted Abstracts: Chem Sci J
DOI: 10.4172/2150-3494-C1-009
Abstract
Ethylene homopolymerization by two types of Ziegler-Natta catalysts including none-THF and none-EtOH catalysts was compared. The influences of hydrogen concentrations on surface active sites of these catalysts were investigated based on catalytic activity. From the results, the EDX analysis and surface area measurement confirmed that none-EtOH catalyst had better active center distribution than that of none-THF. Thus, the none-EtOH catalyst could retard the hydrogen effect on surface active sites and show higher activity with increased hydrogen pressures1. However, catalytic activity was lower with high hydrogen pressure. In addition, to study for more detail about the hydrogen effect, none-THFs were modified with different metal halide additives (AlCl3 and FeCl2). Lewis acid modification can improve activity because it can remove the remaining THF in the final catalyst, which can poison the catalyst active sites via the ring-opening of THF2 which was confirmed by FT-IR and XRD measurements. Moreover, the activity enhancement was due to the formation of acidic sites by modifying the catalysts with Lewis acids. Thus, FeCl2 doped catalyst (Fe-THF) exhibited the highest activity followed by AlCl3 doped catalyst (Al-THF) and undoped catalyst (ZN-THF). In the H2/ C2H4 molar ratio of 0.08, Fe-THF showed a better hydrogen response on the surface active sites than Al-THF due to more titanium clustered distribution. Fe-THF is considered to have more clustered Ti species than Al-THF3. As a consequence, it led to obtain more possible chances to proceed chain transfer reaction by hydrogen.
Biography

Thanyathon studies the doctoral degree of chemical engineering at chulalongkorn university and joined catalysis and catalytic reaction engineering research group with the Royal Golden Jubilee program of Thailand Research Fund (TRF).

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
adwords