The Production of Activated Carbon from Coconut Shells Using Pyrolysis and Fluidized Bed Reactors

Persistent Link:
http://hdl.handle.net/10150/243968
Title:
The Production of Activated Carbon from Coconut Shells Using Pyrolysis and Fluidized Bed Reactors
Author:
Hung, Jessica Joy
Issue Date:
May-2012
Publisher:
The University of Arizona.
Rights:
Copyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.
Abstract:
A production plant was designed to produce 14.5 metric tons of activated carbon per day from coconut shells, in order to capture 2% of the projected market for activated carbon in air purification applications by 2014. The production process consists of a pyrolysis stage and an activation stage. A downdraft gasifier was utilized as the pyrolysis reactor in order to maximize the energy efficiency of the process, and a separate cyclone and condenser were added to capture and purify the valuable byproducts of the pyrolysis reaction. A fluidized bed reactor was utilized as the activation reactor, due to its superior heat and mass transfer properties over conventional reactors currently used in industry. An extensive heat exchanger network was implemented to capture and recycle the heat and water produced by the activation reaction, in order to minimize the plant’s thermal and water footprint. With an interest rate of 20%, the plant is expected to have a net present value of $43.8 million at the end of its ten-year lifetime. Due to the expected high product demand and anticipated profits, construction of the plant is strongly recommended.
Type:
text; Electronic Thesis
Degree Name:
B.S.C.E.
Degree Level:
bachelors
Degree Program:
Honors College; Chemical Engineering
Degree Grantor:
University of Arizona

Full metadata record

DC FieldValue Language
dc.language.isoenen_US
dc.titleThe Production of Activated Carbon from Coconut Shells Using Pyrolysis and Fluidized Bed Reactorsen_US
dc.creatorHung, Jessica Joyen_US
dc.contributor.authorHung, Jessica Joyen_US
dc.date.issued2012-05-
dc.publisherThe University of Arizona.en_US
dc.rightsCopyright © is held by the author. Digital access to this material is made possible by the University Libraries, University of Arizona. Further transmission, reproduction or presentation (such as public display or performance) of protected items is prohibited except with permission of the author.en_US
dc.description.abstractA production plant was designed to produce 14.5 metric tons of activated carbon per day from coconut shells, in order to capture 2% of the projected market for activated carbon in air purification applications by 2014. The production process consists of a pyrolysis stage and an activation stage. A downdraft gasifier was utilized as the pyrolysis reactor in order to maximize the energy efficiency of the process, and a separate cyclone and condenser were added to capture and purify the valuable byproducts of the pyrolysis reaction. A fluidized bed reactor was utilized as the activation reactor, due to its superior heat and mass transfer properties over conventional reactors currently used in industry. An extensive heat exchanger network was implemented to capture and recycle the heat and water produced by the activation reaction, in order to minimize the plant’s thermal and water footprint. With an interest rate of 20%, the plant is expected to have a net present value of $43.8 million at the end of its ten-year lifetime. Due to the expected high product demand and anticipated profits, construction of the plant is strongly recommended.en_US
dc.typetexten_US
dc.typeElectronic Thesisen_US
thesis.degree.nameB.S.C.E.en_US
thesis.degree.levelbachelorsen_US
thesis.degree.disciplineHonors Collegeen_US
thesis.degree.disciplineChemical Engineeringen_US
thesis.degree.grantorUniversity of Arizonaen_US
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