skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Electrochemical and photoelectrochemical reduction of furfurals

Abstract

Electrochemical cells and photoelectrochemical cells for the reduction of furfurals are provided. Also provided are methods of using the cells to carry out the reduction reactions. Using the cells and methods, furfurals can be converted into furan alcohols or linear ketones.

Inventors:
; ;
Publication Date:
Research Org.:
Wisconsin Alumni Research Foundation, Madison, WI (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1419778
Patent Number(s):
9,885,119
Application Number:
14/620,628
Assignee:
Wisconsin Alumni Research Foundation (Madison, WI) CHO
DOE Contract Number:
SC0008707
Resource Type:
Patent
Resource Relation:
Patent File Date: 2015 Feb 12
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 30 DIRECT ENERGY CONVERSION

Citation Formats

Choi, Kyoung-Shin, Roylance, John James, and Kubota, Stephen R. Electrochemical and photoelectrochemical reduction of furfurals. United States: N. p., 2018. Web.
Choi, Kyoung-Shin, Roylance, John James, & Kubota, Stephen R. Electrochemical and photoelectrochemical reduction of furfurals. United States.
Choi, Kyoung-Shin, Roylance, John James, and Kubota, Stephen R. 2018. "Electrochemical and photoelectrochemical reduction of furfurals". United States. doi:. https://www.osti.gov/servlets/purl/1419778.
@article{osti_1419778,
title = {Electrochemical and photoelectrochemical reduction of furfurals},
author = {Choi, Kyoung-Shin and Roylance, John James and Kubota, Stephen R.},
abstractNote = {Electrochemical cells and photoelectrochemical cells for the reduction of furfurals are provided. Also provided are methods of using the cells to carry out the reduction reactions. Using the cells and methods, furfurals can be converted into furan alcohols or linear ketones.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 2018,
month = 2
}

Patent:

Save / Share:
  • Electrochemical and photoelectrochemical cells for the oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran are provided. Also provided are methods of using the cells to carry out the electrochemical and photoelectrochemical oxidation of 5-hydroxymethylfurfural to 2,5-furandicarboxylic acid and/or 2,5-diformylfuran.
  • This patent describes a method for separating hafnium from zirconium of the type wherein a feed containing zirconium and hafnium chlorides is prepared from zirconium-hafnium chloride and the feed is introduced into a distillation column, which distillation column has a reboiler connected at the bottom and a reflux condenser connected at the top and wherein a hafnium chloride enriched stream is taken from the top of the column and a zirconium enriched chloride stream is taken from the bottom of the column. It comprises: reducing the zirconium enriched chloride stream taken from the distillation column to metal by electrochemically reducingmore » an alkaline earth metal in a molten salt bath with the molten salt in the molten salt bath consisting essentially of a mixture of at least one alkali metal chloride and at least one alkaline earth metal chloride and zirconium chloride, with the reduced alkaline earth metal reacting with the zirconium chloride to produce zirconium metal and alkaline earth metal chloride.« less
  • This invention is an improved form of a conventional electrochemical process for removing hexavalent chromium or other metal-ion contaminants from cooling-tower blowdown water. In the conventional process, the contaminant is reduced and precipitated at an iron anode, thus forming a mixed precipitate of iron and chromium hydroxides, while hydrogen being evolved copiously at a cathode is vented from the electrochemical cell. In the conventional process, subsequent separation of the fine precipitate has proved to be difficult and inefficient. In accordance with this invention, the electrochemical operation is conducted in a novel manner permitting a much more efficient and less expensivemore » precipitate-recovery operation. That is, the electrochemical operation is conducted under an evolved-hydrogen partial pressure exceeding atmospheric pressure. As a result, most of the evolved hydrogen is entrained as bubbles in the blowdown in the cell. The resulting hydrogen-rich blowdown is introduced to a vented chamber, where the entrained hydrogen combines with the precipitate to form a froth which can be separated by conventional techniques. In addition to the hydrogen, two materials present in most blowdown act as flotation promoters for the precipitate. These are (1) air, with which the blowdown water becomes saturated in the course of normal cooling-tower operation, and (2) surfactants which commonly are added to cooling-tower recirculating-water systems to inhibit the growth of certain organisms or prevent the deposition of insoluble particulates.« less