The Resource Catalytic conversion of glycerol and sugar alcohols to value-added products, by Mohanprasad A. Dasari, (electronic resource)

Catalytic conversion of glycerol and sugar alcohols to value-added products, by Mohanprasad A. Dasari, (electronic resource)

Label
Catalytic conversion of glycerol and sugar alcohols to value-added products
Title
Catalytic conversion of glycerol and sugar alcohols to value-added products
Statement of responsibility
by Mohanprasad A. Dasari
Creator
Contributor
Thesis advisor
Subject
Genre
Language
eng
Summary
The current research is based on developing an improved and fundamental understanding of technology that will allow the conversion of this crude glycerin to a propylene glycol based antifreeze product. Hydrogenolysis of glycerol to propylene glycol was performed using copper chromite catalyst. At temperatures above 200C̕ and hydrogen pressure of 200 psi, the selectivity to propylene glycol decreased due to excessive hydrogenolysis of the propylene glycol. The yield of propylene glycol increased with decreasing water content. The main causes for the deactivation were reduction of the cuprous chromium active species into metallic copper species, metal leaching, and blocking of sites by strongly adsorbed inorganic and organic species present in the feed or generated during the reaction. A new reaction pathway for converting glycerol to propylene glycol via an intermediate was validated by isolating the acetol intermediate. In the first step involves dehydration of glycerol to acetol with subsequent hydrogenation of acetol to propylene glycol. High acetol selectivities ([greater than] 90%) were achieved using copper-chromite catalyst and operating in semi-batch reactive distillation mode. The acetol from this reaction readily hydrogenates to from propylene glycol with selectivities exceeding 95%
Cataloging source
MUU
http://library.link/vocab/creatorDate
1979-
http://library.link/vocab/creatorName
Dasari, Mohanprasad A.
Degree
Ph. D.
Dissertation year
2006.
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
Suppes, Galen J.
http://library.link/vocab/subjectName
  • Hydrogenolysis
  • Ethylene glycol
  • Chemical reactions
Target audience
specialized
Label
Catalytic conversion of glycerol and sugar alcohols to value-added products, by Mohanprasad A. Dasari, (electronic resource)
Instantiates
Publication
Note
  • The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file
  • Title from title screen of research.pdf file (July 18, 2008)
  • Vita
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
mixed
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
234235600
Dimensions
unknown
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Specific material designation
remote
System control number
(OCoLC)234235600
System details
Mode of access: World Wide Web
Label
Catalytic conversion of glycerol and sugar alcohols to value-added products, by Mohanprasad A. Dasari, (electronic resource)
Publication
Note
  • The entire dissertation/thesis text is included in the research.pdf file; the official abstract appears in the short.pdf file (which also appears in the research.pdf); a non-technical general description, or public abstract, appears in the public.pdf file
  • Title from title screen of research.pdf file (July 18, 2008)
  • Vita
Bibliography note
Includes bibliographical references
Carrier category
online resource
Carrier category code
  • cr
Carrier MARC source
rdacarrier
Color
mixed
Content category
text
Content type code
  • txt
Content type MARC source
rdacontent
Control code
234235600
Dimensions
unknown
Media category
computer
Media MARC source
rdamedia
Media type code
  • c
Specific material designation
remote
System control number
(OCoLC)234235600
System details
Mode of access: World Wide Web

Library Locations

  • Curtis Laws Wilson LibraryBorrow it
    400 West 14th Street, Rolla, MO, 65409, US
    37.955220 -91.772210
  • Missouri University of Science & Technology Library DepositoryBorrow it
    2908 Lemone Blvd, Columbia, MO, 65201, US
    38.919360 -92.291620
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