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Title: Reactions of aqueous glucose solution over solid-acid Y-zeolite catalyst at 110-160 C

Abstract

Reactions of glucose with solid-acid Y-zeolite catalyst were studied to see if this heterogeneous system could produce oxygenated hydrocarbons by shape-selective, acid-catalyzed processes at fairly low temperatures. Experimentally, aqueous solutions of glucose (12 wt %) were reacted with HY-zeolite powder in a well-mixed batch reactor at temperatures ranging from 110 to 160 C and catalyst concentrations ranging from 2 to 20 g/150 ml. Unreacted glucose and oxygenated hydrocarbon products were measured by HPLC as a function of reaction time (0-24 h) and process conditions. Glucose conversions of 100% were obtained at 160 C after an 8-h reaction time. The apparent activation energy based on glucose conversion was 23.25 [plus minus] 0.40 kcal/mol. Several acid-catalyzed reactions were identified, including isomerization of glucose to fructose, partial dehydration of glucose to 5-(hydroxymethyl)furfural (HMF), rehydration and cleavage of HMF to formic acid and 4-oxo-pentanoic acid, and carbonization . Polymers of HMF and seven minor additional products in the lower molecular weight organic acids/aldehydes/ketones elution range were also isolated by HPLC. High yields of organic acids relative to HMF and lowered selectivity of HMF in the bulk phase relative to the homogeneous acid-catalyzed reaction suggests the possibility of molecular sieving reactions within the Y-zeolite inmore » addition to reactions on the outer surface of the Y-zeolite particle.« less

Authors:
;  [1]
  1. Oregon State Univ., Corvallis (United States)
Publication Date:
OSTI Identifier:
6555180
Resource Type:
Journal Article
Journal Name:
Industrial and Engineering Chemistry Research; (United States)
Additional Journal Information:
Journal Volume: 32:1; Journal ID: ISSN 0888-5885
Country of Publication:
United States
Language:
English
Subject:
09 BIOMASS FUELS; FURFURAL; CHEMICAL PREPARATION; GLUCOSE; DECOMPOSITION; ORGANIC ACIDS; ZEOLITES; CATALYTIC EFFECTS; ACTIVATION ENERGY; ALDEHYDES; AQUEOUS SOLUTIONS; CARBONIZATION; CHEMICAL REACTION YIELD; CLEAVAGE; DEHYDRATION; FURANS; HETEROGENEOUS CATALYSIS; ISOMERIZATION; KETONES; LIQUID COLUMN CHROMATOGRAPHY; CARBOHYDRATES; CATALYSIS; CHEMICAL REACTIONS; CHROMATOGRAPHY; CRYSTAL STRUCTURE; DISPERSIONS; ENERGY; HETEROCYCLIC COMPOUNDS; HEXOSES; INORGANIC ION EXCHANGERS; ION EXCHANGE MATERIALS; MATERIALS; MICROSTRUCTURE; MINERALS; MIXTURES; MONOSACCHARIDES; ORGANIC COMPOUNDS; ORGANIC OXYGEN COMPOUNDS; SACCHARIDES; SEPARATION PROCESSES; SILICATE MINERALS; SOLUTIONS; SYNTHESIS; YIELDS; 090900* - Biomass Fuels- Processing- (1990-)

Citation Formats

Lourvanij, K, and Rorrer, G L. Reactions of aqueous glucose solution over solid-acid Y-zeolite catalyst at 110-160 C. United States: N. p., 1993. Web. doi:10.1021/ie00013a002.
Lourvanij, K, & Rorrer, G L. Reactions of aqueous glucose solution over solid-acid Y-zeolite catalyst at 110-160 C. United States. https://doi.org/10.1021/ie00013a002
Lourvanij, K, and Rorrer, G L. Fri . "Reactions of aqueous glucose solution over solid-acid Y-zeolite catalyst at 110-160 C". United States. https://doi.org/10.1021/ie00013a002.
@article{osti_6555180,
title = {Reactions of aqueous glucose solution over solid-acid Y-zeolite catalyst at 110-160 C},
author = {Lourvanij, K and Rorrer, G L},
abstractNote = {Reactions of glucose with solid-acid Y-zeolite catalyst were studied to see if this heterogeneous system could produce oxygenated hydrocarbons by shape-selective, acid-catalyzed processes at fairly low temperatures. Experimentally, aqueous solutions of glucose (12 wt %) were reacted with HY-zeolite powder in a well-mixed batch reactor at temperatures ranging from 110 to 160 C and catalyst concentrations ranging from 2 to 20 g/150 ml. Unreacted glucose and oxygenated hydrocarbon products were measured by HPLC as a function of reaction time (0-24 h) and process conditions. Glucose conversions of 100% were obtained at 160 C after an 8-h reaction time. The apparent activation energy based on glucose conversion was 23.25 [plus minus] 0.40 kcal/mol. Several acid-catalyzed reactions were identified, including isomerization of glucose to fructose, partial dehydration of glucose to 5-(hydroxymethyl)furfural (HMF), rehydration and cleavage of HMF to formic acid and 4-oxo-pentanoic acid, and carbonization . Polymers of HMF and seven minor additional products in the lower molecular weight organic acids/aldehydes/ketones elution range were also isolated by HPLC. High yields of organic acids relative to HMF and lowered selectivity of HMF in the bulk phase relative to the homogeneous acid-catalyzed reaction suggests the possibility of molecular sieving reactions within the Y-zeolite in addition to reactions on the outer surface of the Y-zeolite particle.},
doi = {10.1021/ie00013a002},
url = {https://www.osti.gov/biblio/6555180}, journal = {Industrial and Engineering Chemistry Research; (United States)},
issn = {0888-5885},
number = ,
volume = 32:1,
place = {United States},
year = {1993},
month = {1}
}