Improvement of Devulcanization Yield during Reclamation of Waste Tires

Improvement of Devulcanization Yield during Reclamation of Waste Tires

Dr. Kal Renganathan Sharma

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Lone Star College

Improvement of Devulcanization Yield during Reclamation of Waste Tires

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Abstract

Waste tire recycling has become a bigger environmental problem. Despite regulations waste tires are stockpiled and often are breeding ground for west Nile virus and mosquitoes that cause pandemic. A number of times waste tires are incinerated or pyrolysis. Reclamation of value in the rubber portion of the waste tires may be more profitable and more environmentally benign compared with incineration and fuel use methods. Devulcanization and depolymerization reactions can lead to recovery of polybutadiene and butadiene monomer. Competing parallel reactions after the devulcanization step is studied in more detail. Dynamics of the general Denbigh scheme of reactions in a CSTR is studied. The composition of the species involved is obtained as a function of time from model solutions. A general state space form is proposed for simultaneous series-parallel reactions. Types of instability that may arise depends on the eigenvalues of the system. The Eigenvalues of the sparse matrix indicate that the system is of the integrating type. Solutions can be obtained from the eigenvalues for 7 species. Information from the model solution can be used to optimize the yield of rubber during reclamation of rubber from waste tires.

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Funding

No external funding was declared for this work.

Conflict of Interest

The authors declare no conflict of interest.

Ethical Approval

No ethics committee approval was required for this article type.

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Not applicable for this article.

How to Cite This Article

Dr. Kal Renganathan Sharma. 2013. \u201cImprovement of Devulcanization Yield during Reclamation of Waste Tires\u201d. Global Journal of Research in Engineering - C: Chemical Engineering GJRE-C Volume 13 (GJRE Volume 13 Issue C1): .

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GJRE Volume 13 Issue C1
Pg. 1- 9

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Journal Specifications

Crossref Journal DOI 10.17406/gjre

Print ISSN 0975-5861

e-ISSN 2249-4596

Keywords

reclamation rubber sparse matrix

Submission ReceivedApril 6, 2013
Peer Review Double Blind
Handling Editor
Accepted May 1, 2013
Published May 15, 2013

Version of record

v1.2

Issue date

May 10, 2013

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Article Matrices

Total Score: 136

Country: United States

Subject: Global Journal of Research in Engineering - C: Chemical Engineering

Authors: Dr. Kal Renganathan Sharma (PhD/Dr. count: 1)

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