The Resource The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource)
The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource)
Resource Information
The item The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource) represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Missouri University of Science & Technology Library.This item is available to borrow from all library branches.
Resource Information
The item The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource) represents a specific, individual, material embodiment of a distinct intellectual or artistic creation found in Missouri University of Science & Technology Library.
This item is available to borrow from all library branches.
- Summary
- Agriculturally produced ethanol, a renewable resource, may be reformed noncatalytically into hydrogen by a novel process utilizing supercritical water, which acts synergistically both as a solvent and as a reactant. By utilizing supercritical water as a reaction medium, many pitfalls of catalytic reformation may be avoided, including catalyst poisoning due to feedstock impurities, catalyst fouling by carbon deposition, and catalyst deactivation. Supercritical water is water above its critical point, 3740C and 22.1 MPa, and exhibits both liquid and gas-like properties and acts a non-polar solvent. Since supercritical water is denser than steam, supercritical water reactors have the potential of being smaller than their catalytic counterparts. The kinetics of supercritical water reformation of ethanol were experimentally studied using a 1 liter Inconel® 625 Grade 1 alloy tubular reactor. For the experimental study, the temperature was varied between 901 K and 983 K, the water feed rate was varied between 6.4 g/min and 19.7 g/min, the ethanol feed rate was varied between 0.17 g/min and 2.2 g/min, and the pressure was fixed at 24.2 MPa. All ethanol fed was converted into gaseous products: hydrogen, carbon dioxide, methane, ethane, and carbon monoxide, in order of mole fraction from highest to lowest. Hydrogen was produced by two competing reactions: the direct reformation of ethanol into hydrogen and carbon oxides and the pyrolytic decomposition of ethanol into hydrogen, methane, and carbon oxides. In addition, there is a third, undesirable, reaction x that remarkably occurs in a water-rich environment: the dehydration of ethanol to form ethene and the subsequent hydrogenation of ethene to form ethane. In addition, a low abundance of carbon monoxide in relation to carbon dioxide is indicative that the forward water-gas shift reaction is taking place. Arrhenius activation energies for the direct reformation reaction and the pyrolytic decomposition reaction were also regressed
- Language
- eng
- Extent
- 1 online resource (x, 85 pages)
- Note
-
- Title from PDF of title page (University of Missouri--Columbia, viewed on March 2, 2010)
- The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
- Dr. Sunggyu Lee, Dissertation Advisor
- Vita
- Label
- The kinetics of non-catalyzed supercritical water reforming of ethanol
- Title
- The kinetics of non-catalyzed supercritical water reforming of ethanol
- Statement of responsibility
- by Jonathan E. Wenzel
- Language
- eng
- Summary
- Agriculturally produced ethanol, a renewable resource, may be reformed noncatalytically into hydrogen by a novel process utilizing supercritical water, which acts synergistically both as a solvent and as a reactant. By utilizing supercritical water as a reaction medium, many pitfalls of catalytic reformation may be avoided, including catalyst poisoning due to feedstock impurities, catalyst fouling by carbon deposition, and catalyst deactivation. Supercritical water is water above its critical point, 3740C and 22.1 MPa, and exhibits both liquid and gas-like properties and acts a non-polar solvent. Since supercritical water is denser than steam, supercritical water reactors have the potential of being smaller than their catalytic counterparts. The kinetics of supercritical water reformation of ethanol were experimentally studied using a 1 liter Inconel® 625 Grade 1 alloy tubular reactor. For the experimental study, the temperature was varied between 901 K and 983 K, the water feed rate was varied between 6.4 g/min and 19.7 g/min, the ethanol feed rate was varied between 0.17 g/min and 2.2 g/min, and the pressure was fixed at 24.2 MPa. All ethanol fed was converted into gaseous products: hydrogen, carbon dioxide, methane, ethane, and carbon monoxide, in order of mole fraction from highest to lowest. Hydrogen was produced by two competing reactions: the direct reformation of ethanol into hydrogen and carbon oxides and the pyrolytic decomposition of ethanol into hydrogen, methane, and carbon oxides. In addition, there is a third, undesirable, reaction x that remarkably occurs in a water-rich environment: the dehydration of ethanol to form ethene and the subsequent hydrogenation of ethene to form ethane. In addition, a low abundance of carbon monoxide in relation to carbon dioxide is indicative that the forward water-gas shift reaction is taking place. Arrhenius activation energies for the direct reformation reaction and the pyrolytic decomposition reaction were also regressed
- Cataloging source
- MUU
- http://library.link/vocab/creatorName
- Wenzel, Jonathan E
- Degree
- Ph. D.
- Dissertation year
- 2008.
- Granting institution
- University of Missouri--Columbia
- Illustrations
- illustrations
- Index
- no index present
- Literary form
- non fiction
- Nature of contents
-
- dictionaries
- bibliography
- theses
- http://library.link/vocab/relatedWorkOrContributorName
- Lee, Sunggyu
- http://library.link/vocab/subjectName
-
- Agricultural wastes as fuel
- Ethanol as fuel
- Supercritical fluids
- Catalytic reforming
- Target audience
- specialized
- Label
- The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource)
- Note
-
- Title from PDF of title page (University of Missouri--Columbia, viewed on March 2, 2010)
- The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
- Dr. Sunggyu Lee, Dissertation Advisor
- Vita
- Bibliography note
- Includes bibliographical references
- Carrier category
- online resource
- Carrier category code
-
- cr
- Carrier MARC source
- rdacarrier
- Content category
- text
- Content type code
-
- txt
- Content type MARC source
- rdacontent
- Control code
- 609650626
- Extent
- 1 online resource (x, 85 pages)
- Form of item
- electronic
- Media category
- computer
- Media MARC source
- rdamedia
- Media type code
-
- c
- Other physical details
- illustrations (some color).
- Specific material designation
- remote
- System control number
- (OCoLC)609650626
- Label
- The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource)
- Note
-
- Title from PDF of title page (University of Missouri--Columbia, viewed on March 2, 2010)
- The entire thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file; a non-technical public abstract appears in the public.pdf file
- Dr. Sunggyu Lee, Dissertation Advisor
- Vita
- Bibliography note
- Includes bibliographical references
- Carrier category
- online resource
- Carrier category code
-
- cr
- Carrier MARC source
- rdacarrier
- Content category
- text
- Content type code
-
- txt
- Content type MARC source
- rdacontent
- Control code
- 609650626
- Extent
- 1 online resource (x, 85 pages)
- Form of item
- electronic
- Media category
- computer
- Media MARC source
- rdamedia
- Media type code
-
- c
- Other physical details
- illustrations (some color).
- Specific material designation
- remote
- System control number
- (OCoLC)609650626
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<div class="citation" vocab="http://schema.org/"><i class="fa fa-external-link-square fa-fw"></i> Data from <span resource="http://link.library.mst.edu/portal/The-kinetics-of-non-catalyzed-supercritical-water/X3YZqNaCovs/" typeof="Book http://bibfra.me/vocab/lite/Item"><span property="name http://bibfra.me/vocab/lite/label"><a href="http://link.library.mst.edu/portal/The-kinetics-of-non-catalyzed-supercritical-water/X3YZqNaCovs/">The kinetics of non-catalyzed supercritical water reforming of ethanol, by Jonathan E. Wenzel, (electronic resource)</a></span> - <span property="potentialAction" typeOf="OrganizeAction"><span property="agent" typeof="LibrarySystem http://library.link/vocab/LibrarySystem" resource="http://link.library.mst.edu/"><span property="name http://bibfra.me/vocab/lite/label"><a property="url" href="http://link.library.mst.edu/">Missouri University of Science & Technology Library</a></span></span></span></span></div>